ALPHA 10/10P SERVICE MANUAL CIRCUIT DESCRIPTION

Transcription

1 LPH 0/0P SERVIE MUL LPH 0/0P SERVIE MUL IRUIT ESRIPTIO The mother P is common for both the 0 and 0P with the exception of the input mode switch and pre-amp output mute relay which are only fitted to the 0 and the power/standby LE and links to parallel the input connections to what would otherwise be the pre-amp output for use with a mono link. The amplifier is based on the 0/lpha design but with lower gain, a higher current and higher voltage driver stage and a high power output stage. The current servo has been improved over the lpha to be output device independent. micro supervises the amplifier state, switch state and remote control functions. Provision is made for an additional rd channel P to be added with power supply and protection circuitry access. Input stage The input connections are taken either from the pre-amp connector, LKX, or the external power amp input on the 0 depending on the position of SW. On the 0P, the input is taken from the external power amp input only with provision for a mono shorting link by having two parallel input connectors. On the 0, there is a mute relay on the pre-amp outputs which are always connected to the pre-amp connector, LKX. The signal is passed through a low pass filter with a -d point of 0KHz at normal gain and 0KHz at low gain. The gain is selected by SW. and are d.c. blocking capacitors with a -d point of 0.Hz. d.c. error correction current is injected into the base of Q and from the voltage servo Z and, to null any voltage offset at the amplifier output. The input and voltage amplifier stages both run off regulated Volt suppies. The input stage is an P differential input, Q,, and, with an adjustable current source, Q and which sets the quiescent current through all the stages but specifically the output stage., R, and R keep the input stage and voltage amplifier stable. Q,, and form a current mirror to ensure that the differential input is balanced during normal operation. Voltage mplifier The voltage amplifier consists of another differential pair, Q,, 0 and. Q and 0 are the positive pulling side of the voltage amplifier output and Q and pull negative via a current mirror Q,, 0 and. The network,, R and give the current mirror gain to compensate for the fact that Q and Q is only driven from the lowimpedance side of the input stage current mirror. The network ensures a fast, symmetrical slew rate of the voltage amplifier stage. etwork, 0, R, ensure the overall stability of the amplifier by reducing the open loop gain at high frequencies. Second Voltage mplifier and river Stage Q,, and are the next voltage amplifier stage with feedback applied from the output coupled to their emitters. This stage runs on the full supply rail voltages and splits the level shifts the signal via Q,, and to drive the gates of the output MOSFETs, Q,, and. Q and simply buffer the inverted signal at the collector of Q to drive the low side MOSFETs, Q and. Q and invert the inverted signal at the collector of Q and Q to drive the high side MOSFETs, Q and. To ensure that the high side drive is able to swing far enough to ensure the high side MOSFETs can be driven to saturation, a bootstrap,, R, and boosts the driver stage power supply during positive excursions of the amplifier output. This is inactive at low output voltage swings as any distortion induced by the network would be more audible at such levels. Output Stage oth the high and low side output devices feature over-current protection, Q,,, 0 which clamps the gate of the MOSFET it protects. high current is permitted through the MOSFET for a few milliseconds after which time the current is throttled down to about 0 peak. second current sensing network, Q and Q activates the over-current protection cut-out if the low side is current limiting for too long, a few hundred milliseconds. The current sensing resistors do not reduce the transconductance of the MOSFETs because the driver stage is referenced to the MOSFET source. This means that the current through the driver stage is also sensed but this is insignificant as fas as over-current protection sensing is concerned. uto-bias

2 LPH 0/0P SERVIE MUL Figure lock iagram of Power mplifier The bias is regulated in two modes, one where these is no signal and one when signal is being split between the high and low side MOSFETs when driving a alternating signal into a load. Under static conditions, Z simply compares the sensed current, which includes the driver stage current, with a d.c. mode reference of mv. The sense resistor is 0. so this corresponds to a current of about 0m, some of which is driver current. The current through the MOSFETs is about 0m at this point. The comparator output is level shifted to drive the integrating current servos Z and. This adjusts the amplifier current so that, on average, the bias level is held at the reference point. Under dynamic conditions, the low side drive will definitely be conducting more current than the reference (0m) for half the signal cycle and will be switched off for the other half. The result is a rectangle wave output from the comparator, Z. When the output stage is biassed correctly (class operation) the comparator output toggles when the current through the sense resistor for the -ve MOSFET is equal to the d.c. mode static reference level and at the half way point of the signal. The result is a perfect square wave output from the comparator. Under these conditions, the ve MOSFET is also conducting the same amount of current at this point. If the bias level is lower than the reference, say, at zero (class operation) then the -ve MOSFET will spend slightly less than half the time conducting at or above the reference level resulting in a rectangle wave output from the comparator at a duty cycle slightly less than 0%. If the bias level is higher than the reference then the -ve MOSFET will spend slightly more than half the time conducting at or above the reference level resulting in a rectangle wave output at a duty cycle slightly more than 0%. The change in duty cycle away from 0% causes the integrator, Z and Z to adjust the bias level via the bias adjusting transistors, Q and. The integrator has a reference, the a.c. mode dynamic reference, for a bias point slightly higher than for a 0% duty cycle. This eliminates the possibility of the bias being slowly throttled due to component tolerance mismatch resulting in a reference which would pull the servo down. high dynamic bias reference level simply stabilises the bias slightly higher than the static reference but a low dynamic reference causes the bias to drift down to complete throttle. This system works if the signal is a.c., symmetrical and is not a rectangle wave. ertainly, only a.c. signals are passed Sense Resistor -ve MOSFET Measured urrent (blue) Other MOSFET omparitor Output 0% % % ias correct Under iassed Over iassed Figure uto-bias under dynamic conditions

3 LPH 0/0P SERVIE MUL through the amplifier due to and d.c. blocking capacitors and on average the signal will be symmetrical. ny short-term asymmetry will be ironed out by the long time constant of the integrator. Main Power Supply The main power supply is regulated in two stages. First it is pre-regulated by Q and to about V less than the main supply rails. This supply is made available to an option board. The maximum load on these supplies is 0m for less than W dissipation in Q and. These supplies are then regulated to /-V by Z and. These supplies are used by the input stages of the power amplifiers including any rd channel board, the pre-amplifier board and an optional phono amplifier board. The positive voltage regulator, Z, has a larger heatsink than Z because the phono board consumes much more current from the positive rail than from the negative rail. ontrol Micro The control micro performs the following functions... Switches the amplifier on or off, Mutes the speakers # or # or the pre-amp output, Monitors the heatsink temperature, Monitors RF content of speaker outputs, Handles the remote bus and infra red remote input, Reports fault conditions to the main display and LE, Reads the speaker and power switch positions. The control micro runs of the constant power supply from standby transformer, TX. This enables the amplifier to be switched on or off remotely from the remote bus or, in the case of the integrated amplifier, from an infra red remote control. This power supply is intended to supply all the digital circuitry in the amplifier including any option boards. This is supplied at V to the other boards where it will be locally regulated to V as required. The micro communicates with the display board via a multi-master I bus. This bus is used to report amplifier and power status to the display micro and remote control commands received. It is also possible for the display micro to control functions on the power amplifier board. The option board also uses this bus to receive any remote control commands and communicate with the display micro. The external remote bus handles raw information from infra red sensors with no demodulating. The remote bus input can be echoed to the output through a buffer circuit. The incoming signal is demodulated by Z. Raw signal is also sent to the micro interrupt line, pin, for assessing the noise on the remote bus. In addition, any d.c. signal on the remote bus is sensed on pin of the micro in when it is not being used as an output to mute the hardware remote echo buffer. The micro must modulate any output it sends to this bus with a carrier (KHz). The output will drive one or two series infra red LEs directly. The list below shows how various fault conditions can be deduced simply from the Power LE behaviour. Figure Micro lock iagram

4 LPH 0/0P SERVIE MUL On power up, the protection should be engaged. This is checked after seconds on pin of Z. If it isn't happening, the unit shuts down with flashing red. If the protection does not clear after about seconds on power-up the unit shuts down to flashing red. This is usually caused by a voltage offset. ny main amp power loss detected on pin after power-up causes a shut down to flashing red. ny RF detected on pin results on immediate shut down to flashing red. ny protection fault detected after power up on pin results in a flashing amber LE for about seconds max. If it has not cleared by then the unit is shut down to flashing red. Protection faults are caused by voltage offset or over-current. Over-current should latch resulting in a shut down after seconds. Voltage offsets should clear themselves if brief. temperature fault on pin results in the power LE flashing slow amber and can last indefinitely until it clears. When it clears the flashing will speed up until the protection times back in. LPH 0P POWER MP MI OR PRTS LIST Ref o. escription Part o ELST 00U 00V 0 ELST 00U 00V 0 ML 00 0V XR 0% SM 0 ELST 00U 00V 0 ELST 00U 00V 0 ELST U V ELST 0U 0V 0 ELST U V ELST 0U 0V 0 0 ELST 0U 0V 0 ELST U0 0V 0 PPRO V % R SUPPR P 0V K PPRO 0P % V R ELST 0U 0V 0 ELST 0U 0V 0 ELST 0U 0V 0 ELST T 0m V R 0mm 0 ELST T 0m V R 0mm 0 0 PPRO V % R PPRO V % R ELST 00U V 0 ELST 00U V 0 ELST 00U V 0 ELST 00U V 0 ELST 00U V 0 ELST 00U V 0 ML 0P 00V PO % SM ML 0P 00V PO % SM 0 ML 0P 00V PO % SM ML 00 0V XR 0% SM 0 ELST U V ELST U V ML 00 0V XR 0% SM 0 PPRO 0P % V R PPRO V % R PPRO 0 % V R 0 PPRO 0P V % R PPRO 0P V % R 0 ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 SUPPR P 0V K ELST 0U 0V 0 SUPPR P 0V K SUPPR P 0V K ELST M V PPRO 0 % V R 0 0 ELST U0 0V 0 ELST 0U V ELST 0U V ELST 0U V ELST 0U V PR 00 00V 0% R mm H0 PR 00 00V 0% R mm H0 PR 00 00V 0% R mm H0 PR 00 00V 0% R mm H0 PR 00 00V 0% R mm H0 0 PR 00 00V 0% R mm H0 PPRO 00P V % R 0

5 LPH 0/0P SERVIE MUL PPRO 00P V % R 0 PPRO 0P % V R PPRO 0P % V R PPRO 0P % V R PPRO 0P % V R PEST V % K PEST V % K PSTY P 0V EP PF% F0 0 PSTY P 0V EP PF% F0 ELST O POLR 0UF V U0 ELST O POLR 0UF V U0 ELST O POLR 0UF V U0 ELST O POLR 0UF V U0 PEST V 0% K PEST V 0% K PEST V 0% K PEST V 0% K ELST O POLR 0UF V U0 0 ELST O POLR 0UF V U0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ELST 00U V 0 ML 00 0V XR 0% SM 0 ML 00 0V XR 0% SM 0 ML 00 0V XR 0% SM 0 ML 00 0V XR 0% SM 0 ML 00 0V XR 0% SM 0 ML 00 0V XR 0% SM 0 0 ELST 0U 0V 0 PPRO 0P V % R ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 ELST 0U 0V 0 ELST 0U 0V 0 ML 00 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 ER 0PF V 0% ER 0PF V 0% 00 ZEER V 00MW 0 ZEER V 00MW 0 ZEER 0V 00MW 00 ZEER 0V 00MW 00 ZEER 0V 00MW 00 ZEER 0V 00MW 00 ZEER 0V 00MW 00 ZEER 0V 00MW 00 ZEER 0V 00MW 00 0 RETIFIER 0 00V 0 RETIFIER 0 00V 0 RETIFIER 0 00V 0 RETIFIER 0 00V 0 RETIFIER 00F 00V 00 RETIFIER 00F 00V 00 SSIOE V SSIOE V RETIFIER 00F 00V 00 RETIFIER 00F 00V 00 0 SSIOE V RETIFIER 00F 00V 00 RETIFIER 00F 00V 00 RETIFIER 00F 00V 00 RETIFIER 00F 00V 00 RETIFIER 00F 00V 00 SSIOE V RETIFIER 00F 00V 00 SSIOE V ZEER V 00MW 00 0 SSIOE V SSIOE V SSIOE V SSIOE V SSIOE V SSIOE V SSIOE V SSIOE V SSIOE V ZEER V W SM 0 0 SSIOE V ZEER V W SM 0 SSIOE V ZEER V 00MW 00 ZEER V W SM 0 RETIFIER 00F 00V 00 SSIOE V SSIOE V

6 LPH 0/0P SERVIE MUL ZEER V 00MW 00 SSIOE V 0 ZEER V 00MW 00 F FUSE 0mm. S F IS OVER P FUSEHOLER F0 F FUSEHOLER 0mm P S00 F FUSEHOLER 0mm P S00 F IS OVER P FUSEHOLER F0 HS HETSIK LIP TO0 /. /W F00 HS HETSIK TO0 EG/W F00 HS HETSIK TO0 LIP EG/W F00 HS RO THERML P EM HS HETSIK TO LIP EG/W E0HK E0HK HS HETSIK LIP TO0 /. /W F00 HS HETSIK TO0 LIP EG/W F00 HS HETSIK LIP TO0 /. /W F00 HS RO THERML P EM HS HETSIK TO LIP EG/W E0HK E0HK HS0 HETSIK TO0 LIP EG/W F00 HS HETSIK TO LIP EG/W E0HK E0HK HS HETSIK LIP TO0 /. /W F00 HS RO THERML P EM HS RO THERML P EM HS HETSIK TO LIP EG/W E0HK E0HK HS HETSIK LIP TO0 /. /W F00 HS HETSIK TO0 LIP EG/W F00 HS HETSIK TO0 LIP EG/W F00 L IUT U xmm 0 00 L IUT U xmm 0 00 L mh IUTOR LEP LE RE/GREE MM 00 LKP JUMPER -WY LE L O OPTO ISOLTOR T P PRITE IRUIT OR LP Q TRS UIO RIVER S Q TRS UIO RIVER S Q TRS UIO RIVER S Q TRS UIO RIVER P S Q TRS UIO RIVER P S Q TRS UIO RIVER P S Q TRS LF SS P SM Q TRS LF SS SM Q TRS LF SS SM Q0 TRS LF SS SM Q TRS LF SS SM Q TRS LF SS SM Q TRS POWER MOSFET IRPF0L K0 Q TRS POWER MOSFET IRPF0L K0 Q TRS POWER MOSFET IRPF0L K0 Q TRS POWER MOSFET IRPF0L K0 Q TRS LF SS SM Q TRS LF SS SM Q TRS LF SS SM Q0 TRS LF SS SM Q TRS LF SS SM Q TRS LF SS SM Q TRS LF SS SM Q TRS LF SS SM Q TRS LF SS SM Q TRS LF SS SM Q TRS LF SS SM Q TRS LF SS SM Q TRS LF SS SM Q0 TRS LF SS SM Q TRS LF SS SM Q TRS LF SS S Q TRS LF SS P S0 0 Q TRS LF SS SM Q TRS LF SS S Q TRS LF SS P S0 0 Q TRS LF SS SM Q TRS LF SS P S0 0 Q TRS LF SS SM Q0 TRS LF SS S Q TRS LF SS S Q TRS LF SS SM Q TRS LF SS S Q TRS LF SS S Q TRS LF SS S Q TRS LF SS S Q TRS LF SS S Q TRS LF SS P SM Q TRS LF SS P SM Q0 TRS LF SS P SM Q TRS LF SS P SM Q TRS LF SS P SM

7 LPH 0/0P SERVIE MUL Q TRS LF SS P SM Q TRS LF SS P SM Q TRS LF SS P SM Q TRS LF SS P SM Q TRS LF SS P SM Q TRS LF SS P SM Q TRS LF SS SM Q0 TRS LF SS P SM Q TRS LF SS SM Q TRS LF SS SM R RES MF FU W R0 % FR G0 R RES MF FU W R0 % FR G0 R RES MF FU W R0 % FR G0 R RES F W 0R % E R RES F W 0R % E R RES F W 00R % 0 R RES MF FU W 0R % FR G R RES MF FU W 0R % FR G R RES MF FU W 0R % FR G R0 RES MF FU W 0R % FR G R RES MF FU W K0 % FR G0 R RES MF FU W 0R % FR G R RES MF FU W 0R % FR G R RES MF FU W 0R % FR G R RES MF FU W 0R % FR G R RES MF FU W K0 % FR G0 R RES MF FU W 0R % FR G R RES MF FU W 0R % FR G R RES MF FU W K0 % FR G0 R0 RES MF FU W K0 % FR G0 R RES MF FU W K0 % FR G0 R RESISTOR SM W 0R % R RESISTOR SM W 0R % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W 0K % 0 R RESISTOR SM W K % R0 RESISTOR SM W 0K % R RESISTOR SM W 0K % R RESISTOR SM W 00K % 0 R RESISTOR SM W K % R RESISTOR SM W K % RP RESISTOR SM W 0R0 % 000 R RESISTOR SM W K0 % 0 R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R0 RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W 0R % R RES F W 00R % 0 R0 RES MF FU W 00R % FR G0 R RES MF FU W 0R % FR G00 R RES MF FU W 0R % FR G00 R RES F W 0R % R RES MF FU W 00R % FR G0 R RES MF FU W 0R % FR G00 R RES MF FU W 0R % FR G00 R RES F W 0R % R RESISTOR SM W R % 0 R RESISTOR SM W M0 % 0 R0 RESISTOR SM W M0 % 0 R RESISTOR SM W M % R RESISTOR SM W M0 % 0 R RESISTOR SM W M0 % 0 R RESISTOR SM W M % R RESISTOR SM W 0R % RP RESISTOR SM W 0R0 % 000 R RESISTOR SM W R % 0 R RESISTOR SM W R % 0 R RESISTOR SM W 0K % 0 R RESISTOR SM W 0K % 0 R0 RESISTOR SM W 0K % 0 R RESISTOR SM W K % R RESISTOR SM W 00R % 0 R RESISTOR SM W 00R % 0 R RESISTOR SM W 00R % 0

8 LPH 0/0P SERVIE MUL R RESISTOR SM W K0 % 0 R RESISTOR SM W 00R % 0 R RESISTOR SM W 00R % 0 R RESISTOR SM W 00R % 0 R RESISTOR SM W K0 % 0 R0P RESISTOR SM W 0R0 % 000 R0 RESISTOR SM W 0K % 0 R RESISTOR SM W 0R % R RESISTOR SM W 0R % RP RESISTOR SM W 0R0 % 000 R RESISTOR SM W 00R % 0 R RES MO W % 0R KOSPR Q R RES MO W % 0R KOSPR Q R RES MO W % 0R KOSPR Q R RES MO W % 0R KOSPR Q R RES MO W % 0R KOSPR Q R RES MO W % 0R KOSPR Q R0 RES MO W % 0R KOSPR Q R RES MO W % 0R KOSPR Q R RESISTOR SM W R % 0 R RESISTOR SM W R % 0 R RESISTOR SM W 0R % R RESISTOR SM W R % 0 R RESISTOR SM W R % 0 R RESISTOR SM W 0R % R RESISTOR SM W K % R RESISTOR SM W 0R % R00 RESISTOR SM W K % R0 RESISTOR SM W 0R % R0 RESISTOR SM W K % R0 RESISTOR SM W K % R0 RESISTOR SM W 0K % R0 RESISTOR SM W K % R0 RESISTOR SM W K % R0 RESISTOR SM W 0K % R0 RESISTOR SM W K % R0 RESISTOR SM W K % R0 RES F W R % E R RES F W R % E R RES F W R % E R RES F W R % E R RESISTOR SM W R % 0 R RESISTOR SM W K % R RESISTOR SM W 0K % 0 R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R0 RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W 0R % R0 RESISTOR SM W 0R % R RESISTOR SM W 0R % R RESISTOR SM W 0R % R RESISTOR SM W 0R % R RESISTOR SM W 0R % R RESISTOR SM W 0R % R RESISTOR SM W 0R % R RESISTOR SM W 00K % 0 R RES MF FU W 0R % FR G R RES MF FU W 00R % FR G0 R0 RES MF FU W 00R % FR G0 R RES MF FU W 0R % FR G R RESISTOR SM W K % R RES MF FU W 0R % FR G R RES MF FU W 00R % FR G0 R RES MF FU W 00R % FR G0 R RES MF FU W 0R % FR G R RESISTOR SM W 0R % R RES MF FU W K0 % FR G0 R RES MF FU W K0 % FR G0 R0 RES MF FU W 0R % FR G R RES MF FU W K0 % FR G0 R RES MF FU W K0 % FR G0 R RES MF FU W 0R % FR G R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K %

9 LPH 0/0P SERVIE MUL R RESISTOR SM W K % R0 RESISTOR SM W 00R % 0 R RESISTOR SM W 00R % 0 R RESISTOR SM W 00R % 0 R RESISTOR SM W 00R % 0 R RESISTOR SM W 0R % R RESISTOR SM W 0R % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W 0R % R RESISTOR SM W 0R % R0 RES MF W K % H R RES MF W K % H R RESISTOR SM W 0R % 00 R RESISTOR SM W 0R % R RESISTOR SM W 0R % 00 R RESISTOR SM W K % R RESISTOR SM W 0K % R RESISTOR SM W 0K % R RESISTOR SM W 0K % R RESISTOR SM W 0K % R0 RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W 0K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R0 RESISTOR SM W M0 % 0 R RESISTOR SM W K % R RESISTOR SM W 0K % R RESISTOR SM W R % 0 R RESISTOR SM W R % 0 R RESISTOR SM W R % 0 R RESISTOR SM W R % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W K % R RES MF FU W R0 % FR G0 R00 RES F W K % E R0 RESISTOR SM W K % R0 RESISTOR SM W 00K % 0 R0 RESISTOR SM W K % R0 RESISTOR SM W 0K % 0 R0 RES F W % K E R0 RESISTOR SM W 00K % 0 R0 RESISTOR SM W 00K % 0 R0 RESISTOR SM W 0R % R0 RESISTOR SM W K % R0 RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W R % 0 R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K0 % 0 R RESISTOR SM W 0K % 0 RP RESISTOR SM W 0R % R RESISTOR SM W 0K % R RESISTOR SM W 0K % 0 R0 RESISTOR SM W 00K % 0 R RES F W 0R % E R RESISTOR SM W 00K % 0 R RESISTOR SM W 0K % 0 R RES MF FU W 0R % FR G00 R RESISTOR SM W 0K % 0 R RESISTOR SM W 0K % 0 R RES MF W 0R % H00 R RES F W K % E R RES F W K % E R0 RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K0 % 0 R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W 00K % 0 R RESISTOR SM W 0K % 0 R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % RLY RLY SPST V SPKR RLY RLY SPST V SPKR RLY RLY SPST V SPKR RLY RLY SPST V SPKR

10 LPH 0/0P SERVIE MUL RLY RELY MIS V 0 RLY RELY MIS PT V SH MIS EM SHIEL E0 SH PHOO EM SHIEL E0M SK PHOO SKT -WY EM GOL SK MO IIG POST WY GOL G SK MO IIG POST WY GOL G SK IE MIS O P IS PX 00 SK STEREO JK P 0 SK -WY FF O K0 SK GE LMP WY Q00 SK GE LMP WY Q00 SK GE LMP WY R00- Q00 SK0 MI JK UL.mm HSJ SKT JST WY HEER K0 SW SW PUSH PO 00 SW SW PUSH PO 00 SW SW PUSH PO 00 SW SW PUSH PO 00 TX LPH0 MP POWER TX 0V LTX TX LPH 0 MP 0V/V TRSFORMER LTX X ER RESO.00MHz W00 Y TX WIRE RESTRIT F Y TX WIRE RESTRIT F Z I VREG POS LMT T Z I VREG POS LMT Z I UIO SM UL TL0 0 Z I UIO SM UL TL0 0 Z I OMPRITOR TP M Z I VREG POS 0 0 Z I VREG POS 0 0 Z I OMPRITOR SM UL LM M Z I SOKET RROW S0 Z I MOS MIRO HTR0 -IP--0 0 Z0 I THERMOSTT SM LMIM M Z I THERMOSTT SM LMIM M Z I MOS EPROM 0 SM G0 Z I OMPRITOR SM UL LM M TH THERMISTOR MIS SURGE T00 TH THERMISTOR MIS SURGE T00 LPH 0 PREMPLIFIER OR PRTS LIST Ref o. escription Part o. ELST O POLR 0UF V U0 ELST U V ELST O POLR 0UF V U0 ELST U V ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 0 PPRO 0P % V R PPRO 0P % V R ML P 00V PO % SM 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ML P 00V PO % SM 0 ELST U V ELST U V ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 ML 0 0V XR 0% SM 0 ZEER V 00MW 00 ZEER V 00MW 00 LK JUMPER -WY LE FOR 0 PRE-MP L LK JUMPER -WY LE FOR 0 PRE-MP L P PRITE IRUIT OR LP PL WY IL PI HEER K R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W R % 0 0

11 LPH 0/0P SERVIE MUL R RESISTOR SM W R % 0 R RESISTOR SM W K % R RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W 0K % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R0 RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R0 RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W K0 % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R0 RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R0 RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W R % 0 R RESISTOR SM W R % 0 R0 RESISTOR SM W R % 0 R RESISTOR SM W R % 0 R RESISTOR SM W R % 0 R RESISTOR SM W R % 0 R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W K % R RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R0 RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W 00K % 0 R RESISTOR SM W 00R % 0 R0 RESISTOR SM W K % R RESISTOR SM W K % SK PHOO SKT -WY EM GOL SK PHOO SKT -WY EM GOL SK PHOO SKT -WY EM GOL SK PHOO SKT -WY EM GOL SK PHOO SKT -WY EM GOL SK -WY FF O K0 SK -WY FF O VERT K0 Z I OPMP UL SM OPP Z I OPMP UL SM OPP Z I HMOS SM MX 0 K0M Z I HMOS SM MX 0 K0M Z I HMOS SM MX 0 K0M Z I HMOS SM MX 0 K0M Z0 I HMOS SM MX 0 K0M Z I HMOS SM MX 0 K0M Z I UIO SM UL TL0 0 Z I UIO SM UL TL0 0 Z I UIO UL VOLPOT LM R RESISTOR SM W K % LPH 0 ISPLY OR PRTS LIST

12 LPH 0/0P SERVIE MUL Ref o. escription Part o. ER 00 V 0% R 0 ELST 0U V R ER 00 V 0% R 0 ER 00 V 0% R 0 ER 00 V 0% R 0 ELST 0U V ER 00 V 0% R 0 SSIOE V SSIOE V SSIOE V SSIOE V SSIOE V SSIOE V SSIOE V SSIOE V SSIOE V 0 SSIOE V SSIOE V LP PRITE IRUIT OR LP LE LE GREE MM 00 LE LE GREE MM 00 LE LE GREE MM 00 LE LE GREE MM 00 LE LE GREE MM 00 LE LE GREE MM 00 LE LE GREE MM 00 LE00 LE RE/GREE MM 00 LK LIK PLI 0mm X00 LK JUMPER WY x mm L M ORITKE ITRO U00RP-UJ 00 Q TRS LF SS P Q TRS MOSFET SW ZVL0 K0 R RES MF FU W RR % FR G R RES MF W 0R % H R RES MF W 0R % H R RES MF W 0R % H R RES MF W 0R % H R RES MF W 0R % H R RES MF W 0R % H R RES MF W K % H R0 RES MF W K % H R RES MF W 0K % H0 R RES MF W 0K % H0 R RES MF W 0R % H R RES MF W 0R % H R RES MF W K % H R RES MF W K % H R RES MF W 0K % H0 R RES MF W 00R % H0 R RES MF W 00R % H0 R0 RES MF W 00K % H0 R RES MF W 00R % H0 R RES MF W 00K % H0 RP RES ETWORK 00Kx OMMO V0 RX REMOTE OTROL REEIVER SX0- KHZ 0 SK -WY FF O HORIZ K SK -WY FF O HORIZ K SK E SW TT SWITH -PI LOW PROF 0 SW TT SWITH -PI LOW PROF 0 SW TT SWITH -PI LOW PROF 0 SW TT SWITH -PI LOW PROF 0 SW TT SWITH -PI LOW PROF 0 SW TT SWITH -PI LOW PROF 0 SW TT SWITH -PI LOW PROF 0 SW TT SWITH -PI LOW PROF 0 SW TT SWITH -PI LOW PROF 0 SW0 TT SWITH -PI LOW PROF 0 SW TT SWITH -PI LOW PROF 0 X ER RESO.00MHz W00 Z I VREG POS 0 0 Z 0 PI I SOKET S00 Z I MOS MIRO PI H R RES MF W 0R % H

13 SH SK IE F_ F_ S.J.. SJ Pre-mp udio Input SK V WTRP.XV SW SREE PO_VERT E L FIUIL Pre_Outputs EM PHOOG EM Shield L E EMMIS -V SK 0P SM RLY RLY ST RLY FIUIL P P SJ TOOLIG TOOLIG M RLY ST Replace with same type component only P TOOLIG P MTERIL FR, OZ u FR_OZ hassis onnection F LIVE Fault FIX MIS MIS TH TH Kit Masks: ) For Integrated mp use..., F inclusive ) For Power mp use... P,S,F inclusive SW PO_VERT PRE FIX RLY Q0 R0 RP FIX FIX 0R SM 0R0 SM PRE RP RLY SPT V L&R Inputs F SW PO_VERT R K SM K SM SK PHOOG rd h. Power SKT et SUP V -V -SUP JST W HEER PTHMIS 0R0 SM Y TX WIRE LIP F F S_V S _V _ISSUE R ROE R0P FIX FIX FIX FIX Y TX WIRE LIP PTHMIS H Horizontal Paper Marker _H V Vertical Paper Marker R K SM 0U EL R K SM PWRMPL lct_.sh VI Latch iasref Input R K SM PWRMPR lct_.sh VI Latch iasref Input R 0R SM TX LTX ORGE LUE 0V ROW V LK SK 0V Green GR/YEL GELMP EUTRL TX TX SK lue ark Grey Orange Q RP GELMP R 0R0 SM rilling etail Issue ox MIS ROE LEL R0 K SM 0R0 SM P LP rilling etail RILL_WG P RLY PT V RLY MIS TX0 RLY RLY PT V UPTX Update ox UPTE_OX PS Photo Strip PHOTO_STRIP GREE LUE VI ut-out latch 0U EL V V 0V 0V VIRESET SUP -SUP SH VI ut Output VI ut Output EM Shield EMPHOO TX 0V LTX V 0V V ROut S et Fault LOut 00F 00F RLY RLY SPST SPKR RLY RLY RLY SPST SPKR RLY SPST SPKR SPK RLY RLY SPST SPKR LVProt RVProt et Fault RESET esignators ending in... - For integrated amp only, P - For power amp only, R - For power amp with remote only, S - For power amp with no remote only, X - Other end of wire link. 0U EL Q_ SW SM R 0R MF UREG SPK SPK OTROL lct_.sh FIX R0 00K SM SW SM R K0 SM UREG M EL 0 MO_G SK HPSKT SPK MO_G SK SK F Powerup Top 0 SM Top 0 SM Reset ircuit 0 0 SM LH RH 00 SM 0U EL R RWIG TITLE lpha 0 mp Main I ircuit iagram otes: _0 SJ -- & R ambridge Ltd. Pembroke venue _0 SJ -- enny Industrial entre EO o. IITILS TE Waterbeach ambridge P Filename ate Printed J:\PROJETS\0amp\Lpb_Main_P\ircuits_&_P\wip\Lct_.prj 0-Jul- L R R 0K SM MO_G SK ot 0 SM SK ot 0 SM Top- ot- Top- ot- Fan MO_G K SM 0 Vin Z 0 R 0 G SK MO_G HSS 0P SM SK MO_G Vout HSS HS 0P SM V W SM HS TO0HS0REG igital Supply 00R W F R Q_ R V 00MW HP K SM 00R W F O R 00 SM UREG SW SM RLY V LOut 0R W F HP R ROut 0R W F R 0R SM Q R K0 SM R 00F PRE R PPRE 0 PRE -PRE PIG 0U EL 0R SM RLY PT V 0 Q PE R Q_ R0 FU R I PP I R0 FU J V 00MW Z V Regulator LMT Vin Vout O PP Fan R0 FU R0 Q_0 LOut Q S HS TO0HSTR U EL U EL HS Vin J U EL HS HS TO0HSREG U EL Z LMT Vout O R R TO0HSREG -V Regulator Q S HS TO0HSTR K SM R SW SM Q_ ROut R R0 FU R K0 SM K SM SW SM _0 _0 _0 R R V 00MW Q_ 00 SM SJ SJ SJ 0R SM% K SM% K SM% 0R SM% 00 SM P V U EL -V R 0U EL Q rawn by: SJ R 0R FU UREG 0V 00MW 00U EL 00V 0R FU 00U EL 00V 0V 00MW QF S 00 SM TX P FOUT SKT MOLEXMV MOLEXMV V 00 SM Hardware Remote RX R PSUP SUP Z TL0 SM I 0 K W F Vin & change from 0u to u o hange SKT 0M EL V 0M EL V HS change to larger size P Issue to changes 0 R V Z TL0 SM -V ontrol Supply Z 0 G K W F et Vout 0 00F SK Grey Light Green Light Green Grey 0 SUP 0 -SUP 0P PP 0P PP 00F ESRIPTIO OF HGE ISSUE Sheet of RWIG O. LT O 0 V GELMP PMPU 0U EL

14 Gain d or.x Input R0 K SM% IPUT R K SM R 00K SM 0P PP R R VSERVO R K SM M0 SM K SM R 0U P Z TL0 SM Voltage Servo K SM% 0U P SW PO Q_ Q R PE 0K SM R 00R SM Q_ Q R R SM 0 PP Q_ Q R Q_ Q_ R 0K SM K SM Q Q_ Q_ R R0 Q_0 R SM Q_ R R Q0 00R SM R SM Q_ SW SM Q K SM Q_ R 0P SM# Q_0 0R SM% R R Q Q Q_ 00R SM X P PS V 00R SM R Q_0 0 00P PPS SM 00P PPS SM R0 K MF Q_ R0 0R SM 0K SM Q O R R K SM K SM Q R PP R SM TLP SM 0 00 SM R Q_ 00R SM Q R R 0R FU R 0R FU R K SM 0R SM Q S0 R Q S 0P PP 0P PP K0 SM 00P PP R R R R K SM K SM Q S K0 FU K0 FU R0 0R FU R0 R0 Q S HS TO0HSTR 0R SM R 00R FU R R 0R FU 0R SM 00R FU HS0 TO0HSTR R 0R FU VI Protection 0V 00MW R Q R R0 Q R SM R0 K SM R 0U EL R0 K SM 00R FU R SM R0 R 0R FU 0U EL HS TOHS.EG/W 0R FU -VI Protection Q IRFP0L R 0R SM R 0R SM 0V 00MW 0R FU R R 0R W MO Q R IRFP0L 0R W MO HS R 0R W MO TOHS.EG/W 0R W MO R R0 0R W F 00U EL 00V V W SM 0K SM R 0R FU 00F ootstrap VI ut-out R K0 FU PE R 00 P STLE 0R SM 00U EL R0 K SM SW SM R R W F# L iasref R0 UH L R W F R K SM Q S 00 P Z LM SM ias Level detector OUTPUT VI Latch VI ut SUP R R0 0 0 SM 0K SM Q_ 00R SM SUP Output 00 P Q0 S R K SM ISERVO Z TL0 SM 0U P uto-ias Servo 0 SM R Q_ R0 00K SM 0K SM SRef R M SM R0 K SM SW SM Q_ -V Replace with same type component only RWIG TITLE lpha 0 mp L h. _0 _0 IQ SJ SJ change from 0P to 0P -SUP Hardware Remote RX ircuit iagram _0 SJ -0- R0 change from 0R to 00R otes: _0 SJ -- R & changed. added. & R ambridge Ltd. Pembroke venue _0 SJ -- P Issue to changes enny Industrial entre EO o. IITILS TE ESRIPTIO OF HGE ISSUE Waterbeach Filename ate Printed rawn by: ambridge P J:\PROJETS\0amp\Lpb_Main_P\ircuits_&_P\wip\lct_.SH 0-Jul- SJ Sheet of RWIG O. LT

15 Gain d or.x Input R K SM% IPUT R K SM R 00K SM 0P PP R R VSERVO R K SM M0 SM K SM R 0U P Z TL0 SM Voltage Servo K SM% 0U P SW PO Q_ Q R PE 0K SM R 00R SM Q_ Q R R SM 0 PP Q_ Q R Q_ Q_ R 0K SM K SM Q Q_0 Q_ R R Q_ R SM Q_ R R Q 00R SM R SM Q_ SW SM Q K SM Q_ 00 R 0P SM# Q_ 0R SM% R 00R SM R Q 0X P PS Q Q_ V 00R SM R Q_ P PPS SM 00P PPS SM R K MF Q_ R 0R SM 0K SM Q O R R K SM K SM Q0 R PP R SM TLP SM 0 00 SM R Q_ 00R SM Q0 R R Q_ 0R FU R 0R FU R0 K SM 0R SM Q S0 R Q S 0P PP 0P PP K0 SM 00P PP R R R R K SM K SM Q S K0 FU K0 FU R 0R FU R R Q S HS TO0HSTR 0R SM R 00R FU R R 0R FU R 0R FU 0R SM 00R FU HS TO0HSTR VI Protection 0V 00MW Q R R R0 Q0 R SM R0 K SM R 00R FU R SM HS TOHS.EG/W K SM R 0U EL R 0R FU 0U EL R 0R FU Q -VI Protection IRFP0L R 0R SM R 0R SM 0V 00MW 0R FU R R Q 0R W MO IRFP0L 0R W MO R HS R0 0R W MO TOHS.EG/W 0R W MO R R0 0R W F 0K SM 00U EL 00V R V W SM 0R FU 00F ootstrap R K0 FU 0 PE VI ut-out R 00 P STLE 0R SM 00U EL R0 K SM SW SM R R W F# L iasref R UH L R W F R0 K SM Q S 00 P Z LM SM OUTPUT VI Latch VI ut SUP R ias Level detector 0 0 SM R 0K SM Q_ 00R SM SUP Output 00 P Q S R K SM ISERVO Z TL0 SM 0 0U P uto-ias Servo SRef R M SM R K SM SW SM Q_ -V Replace with same type component only RWIG TITLE lpha 0 mp R h. _0 _0 IQ SJ SJ change from 0P to 0P -SUP Hardware Remote RX ircuit iagram _0 SJ -0- R chage from 0R to 00R otes: _0 SJ -- R & changed. 00 added. & R ambridge Ltd. Pembroke venue _0 SJ -- P Issue to changes enny Industrial entre EO o. IITILS TE ESRIPTIO OF HGE ISSUE Waterbeach Filename ate Printed rawn by: ambridge P J:\PROJETS\0amp\Lpb_Main_P\ircuits_&_P\wip\lct_.SH 0-Jul- SJ Sheet of RWIG O. LT

16 Fit Jumper to PL for test power-up from external d.c. supply R R RVProt LVProt 0K SM 0K SM R PL K SM WVERTJUMPER Lout VFault 00U EL R -SUP R K SM R K SM Rout 00U EL K SM R I I Replace with same type component only PWR V- Z TP R Pwrok 00K SM K SM -SUP R R 0V K SM PRTSUP R V F R V 00MW R 00K SM 00U EL K SM K SM O Power-off uto-ias defeat 0 U0 EL SUP 0U EL 00F RLY Speakers R RLY Q S Fault K SM RLY SPST SPKR RLY SPST SPKR R00 RLY SPT V K W F Soft Start Q S Speaker/mp Protection Z LM SM -SUP Prot RLY et Fault Q S0 R0 K W F R0 uto-ias supply SUP 00F RLY SW SM 0K SM RLY R0 0K SM LE P RLY SPST SPKR RLY SPST SPKR Speakers R R K0 FU Mains/VI Fault detection R 0K SM 0U EL R 00F 00F 00F RLY SW SM SUP R0 Q S K SM LKX G STY/POWER L LEP LE RE/GR SW SM RLY ST K W F Pre-mp Out esignators ending in... - For integrated amp only, P - For power amp only, R - For power amp with remote only, S - For power amp with no remote only, X - Other end of wire link. R0 K0 FU 0V 00MW Q 0 R SW SM R0 00K SM THTESTR R R Q_ RF Protection Lout U0 EL SW SM Q_ R Q_ R00 R0 M0 SM R R0 K SM R K SM 0R SM P SM Q_ K SM 0 0K SM K0 FU R0 K SM 00K SM 0K SM SW SM Q_ Q RWIG TITLE lpha 0 mp Power trl Rout SW SM V 00MW R Q_ R Q V 0R SM P SM Q_ K SM 0 00 SM PREMT SW SM 0U EL PreMute 00 SM RemMute RFProt Therm utout SPMute SPMute ProtStat SW PO SW PO SPSW 0 REMOTE LT_.SH PWR mp ontrol Z reak Raw emod SW PO SW PO Powerup P P P P P P P P P P P0 P P OS P OS P V P0 RES VSS P (TMR)/IT P P0 P P P HTR0 -IP--0 Send SPSW X ST.00 Powerup STYSW THTESTL SP SP STY R Q_ V K SM Q_ V Z Z0 VREF V R 0K SM VREF V Vt OUT Vt OUT Vt OUT Vt OUT Vtemp Vtemp LMIM Q_ Q_ R LMIM Q_ K SM Thermal Protection n.b. R & R are supposed to be different 0 SW PO SW PO R _0 _0 V 0K SM SJ SJ Pwrok RESET VSS S SL ircuit iagram _0 SJ -0- otes: _0 SJ -- & R ambridge Ltd. Pembroke venue _0 SJ -- enny Industrial entre EO o. IITILS TE Waterbeach ambridge P Filename ate Printed J:\PROJETS\0amp\Lpb_Main_P\ircuits_&_P\wip\lct_.SH 0-Jul- WP V F Q Power Supply etection rawn by: SJ Z 0 SM R Powerup V 00MW R UREG K SM R 00 SM V R K SM K SM 0R SM Hardware Remote RX o hange o hange o hange Option P SK 0 0 FFV V P Issue to changes R QR K SM isplay P LKP RR K0 SM SK PRE 0 0 FFV L SUP LK0R L -PRE Rmin RemOut Fault SPMute SPMute Prot V ThermX_RST SP_PWR VFault STYLE REQ S SK RP Rmin 0R SM LE P FULT REMI REMO SP SP PROT THERMX SP_PWR VFULT STYLE REQ S SK Remote P TE IR RX isable pad REMKILL User IR RX isable Link ESRIPTIO OF HGE ISSUE Sheet of RWIG O. LT

17 Raw RemRaw Q_ Q 0P SM Q_ V O Q_ REMJK Remote In SK0 R R 0K SM Q_ 00K SM Q_ V Z LM SM R R R 0K SM K SM K SM Q_ arrier Filter 0P PP L 0 SM MH UREG R 0R FU R0 00K SM reak V 00U EL R0 R Q_0 K SM K SM R0 0K SM Q Q_ Remote uffer Q R 0K SM R K SM R 00R SM R 0R W F Send TLP SM Q REMJK R R SM Q_ Q_ REMJKO Far from P JK.X Q R0 K SM ear to P JK.X Remote Out SK0 arrier emodulator R 0K SM Q_ 0 SM R Q_ K SM Z LM SM R 0K SM emod emod V V R K SM Z LM SM 00 SM RWIG TITLE lpha 0 mp Remote us _0 _0 SJ SJ Hardware Remote RX o hange & R ambridge Ltd. Pembroke venue enny Industrial entre Waterbeach ambridge P otes: ircuit iagram _0 _0 _0 SJ SJ SJ EO o. IITILS Filename ate Printed J:\PROJETS\0amp\Lpb_Main_P\ircuits_&_P\wip\LT_.SH 0-Jul TE R0, R, R change o hange P Issue to changes rawn by: SJ ESRIPTIO OF HGE Sheet of RWIG O. ISSUE LT

18 P TO POWER MP SK 0 0 FFH 0 P RST REQ S SL ROW RI ROUT V STYLE LE LE GREE LE LE GREE LE LE GREE LE P THRU_PI THRU_PI THRU_PI P P P THRU_PI P THRU_PI THRU_PI P0 THRU_PI LE GREE LE THRU_PI P THRU_PI PWRLE LE GREE P THRU_PI P THRU_PI P TO PREMP SK 0 0 FFH SW TTSW SW TTSW 0R MF SW TTSW SW TTSW SW TTSW SW TTSW P THRU_PI THRU_PI R 0R MF R R 0R MF R 0R MF R 0R MF SOURE_0 SOURE_ SOURE_ TPE_0 TPE_ TPE_ TPE_0 TPE_ TPE_ T LO LOK V R0 00K MF OL OL OL OL OL OL V R RR FU V O/P ase 00 ROW R K MF SW TTSW SW TTSW SW0 TTSW V V I 00 ROW R K MF RX SX0- FOL Z FLT TO OR V P SILK SREE). Vin Z 0 G RP 00K X OM ROW Vout O V ER Z, Z OL OL OL OL OL OL R 00K MF RST V X ST.00 RI 0U EL V Q ZVL0 LK UT LK TO ISLE IR REEIVER 0MM LIK 00 R 0K MF TPE_0 TPE_0 TPE_ TPE_ TPE_ TPE_ SOURE_0 SOURE_0 TPE_ TPE_ SOURE_ SOURE_ TPE_0 TPE_0 SOURE_ SOURE_ V R0 K MF M ITRO_VFM 0U EL REQ R 00R MF VF_ VF_0 VF_E SL R 00R MF VF_RS OL V RS R/W (WR) E (R) OL OL OL OL OL OL VF_ VF_ Q 0 R K MF VF_E VF_RS ** SOKETE ** VF_ VF_ VF_ VF_0 Z 0 MLR R R0 R R R R R R R R/T0KI R R/SS R RE0/R R0/IT RE/WR V 0 RE/S VSS 0 V R/PSP VSS R/PSP OS/LKI R/PSP OS/LKOUT R/PSP R0/TOSI/TKI R R/TOSO R R/P R/SO R/SK/SL R/SI/S R0/PSP0 R/PSP 0 R/PSP R/PSP PI LK00 LIK0P LK00 LIK0P LK00 LIK0P LK00 LIK0P LK00 LIK0P LK00 LIK0P LK00 LIK0P LK00 LIK0P LK00 LIK0P LK00 LIK0P LK0 LIK0P LK0 LIK0P LK0 LIK0P LK0 LIK0P LK0 LIK0P LK0 LIK0P LK0 LIK0P LK0 LIK0P Itron VF Module LK0 LIK0P LK00 LIK0P LK0 LIK0P LK0 LIK0P PHSE_ PHSE_ ROW ROW SOURE_0 SOURE_ SOURE_ ROUT TPE_0 TPE_ TPE_ TPE_0 TPE_ TPE_ T R LO 00R MF LOK S SL S R_I LP LP SK LPS_EOER P PWRLE SL S RI R 0R MF R 0R MF STYLE REQ EL REQ V R 0K MF LK STYLE STYLE LO LO T T ROE LEL ROE_0_ISP R 0K MF L LK L PHSE_ PHSE_ U Update ox (Small) UPTE_SML rilling etail RILL_ETIL P0 TOOLIG P P TOOLIG TOOLIG P P TOOLIG TOOLIG P P P P P P TOOLIG TOOLIG TOOLIG TOOLIG TOOLIG TOOLIG P00 TOOLIG P0 TOOLIG rilling etail Issue ox _ISSUESML P P TOOLIG TOOLIG P TOOLIG LE00 G R LE RE/GR LE LE GREE LE LE GREE R 0R MF SW TTSW R 0R MF OL SW TTSW TPE_ TPE_ & R ambridge Ltd. Pembroke venue enny Industrial entre Waterbeach ambridge P RWIG TITLE LPH 0 MP ISPLY Sheet of ircuit iagram LOK LOK Filename -Oct- RW Y HK Y EO o. TE ESRIPTIO OF HGE J:\PROJETS\0amp\IRS\display\Lct_.sch R_OUT PHIL // ROUT LT RWIG O. ISSUE

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