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This service manual helped me to repair my PIONEER. Iam very satisfied, that I found it here.
Even the price of manual was not so high that person would not be able to spend a few money.
But that is very worth spent money. Thanks
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Excellent quality service manual. Quick processing, fair prices. Love to do business again. Thank you!!!
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Excellent service manual, the only known point of note is the alignment of improvability scanned pages within the pdf page. The resolution is good.
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I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
IC, LC75374E Pin No.
1 2
Pin Name
RVR IN R COM
I/O
I �
Description
4dB volume control input. Must be driven at a low impedance. 1dB volume control common pin. For the connection of capacitors that compensate for bass and treble in the tone control circuits.
3~5
RT1 ~ RT3
�
A high-frequency compensation capacitors must be connected between RT1 and RT2. A low-frequency compensation capacitors must be connected between RT2 and RT3.
6 7 8 9 10 ~ 11 12 13 14 15 16 17 18
RT OUT RS IN NC NC RSB1 ~ RSB2 FR IN FR OUT
O I � � � I O
Tone control output. Super bass input. Must be driven at a low impedance. Connected to GND. Not connected. For the connection of RCH super bass compensation capacitors. Fader input. Must be driven at a low impedance. Fader output. The front and rear sides can be attenuated independently. GND. Serial data and clock input for control. Chip enable. Data is written in the internal latch when the chip enable signal goes "L" from "H", and each analog switch is activated. Data transfer is enabled at "H". Generates a 1/2VDD power source. A capacitor must be connected between VREF and GND as a troubleshooting against power ripples. Fader output. The front and rear sides can be attenuated independently. Fader input. Must be driven at a low impedance. For the connection of LCH super bass compensation capacitors. Not connected. Connected to GND. Super bass input. Must be driven at a low impedance. Tone control output. For the connection of capacitors that compensate for bass and treble in the tone control circuit.
RR OUT VSS CL I DI CE � �
19 20 21 22 23 ~ 24 25 26 27 28
VREF RL OUT
�
O FL OUT FL IN LSB2 ~ LSB1 NC NC LS IN LT OUT I � � � I O
29 ~ 31
LT3 ~ LT1
A high-frequency compensation capacitors must be connected between LT1 and LT2. A low-frequency compensation capacitors must be connected between LT2 and LT3.
32 33 34 35 36 37 38 39
L COM LVR IN LSELO AUX(L) CD(L)
� I O
1dB volume control common pin. 4dB volume control input. Must be driven at a low impedance. Input selector output pin.
I TUN(L) TP(L) VDD �
Signal input pins.
Power supply.
� 21 �
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