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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!
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It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
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Great Manual! It contains all the wiring schematics and mechanical exploded views that are essential for service and repair. I was surprised I even found this for such an old machine. Only wish I knew of this site many years ago.
KDC-3025/325/5026/G
COMPONENTS DESCRIPTION
� SWITCH UNIT (X16-2500-xx)
Ref. No. IC1 IC2 Q1,Q4 Application/Function LCD Driver Remote Control IC REMO ON SW Drives LCD Controls the unit. The power supply of IC2 is turned on when base level goes �L�. Operation/Condition/Compatibility
� ELECTRIC UNIT (X34-3090-xx)
Ref. No. IC1 IC2 Application/Function System µ-COM E.Vol & N.C.MPX Operation/Condition/Compatibility Controls FM/AM tuner, the changer, CD mechanism, Panel, volume, and tone. Controls the source, volume, tone and FM multiplex detector. Bu5V (5V) Audio8V (8V) FM+B (8V) AM+B (8V) P-CON ANT-CON SW1 1.5~3.0 IC3 Power Supply IC 3.5~5.0 7.0~ SW2 2.0~3.0 4.0~ IC4 IC6 IC8 Q1 Q2 Q3 Q4 Q21 Q22 Q23 Power IC Muting logic IC Reset IC Surge Detection BACK-UP Detection ACC Detection SW 5V Servo Regurator Servo SW Conrtol Power Supply IC DSI lights when the base is �L�. Q151 DSI Driver DSI turns off when the base is �H�. DSI turns on and off when panel is taken off. Q152 Q153,Q154 Q201 Q351 Q352 Q354 Q355 Q356 Panel 5V SW ILLUMI Control Noise buffer Pre Mute SW Pre Mute SW Pre Mute SW Pre Mute SW Pre Mute SW Mutes the Rear Lch when the base is �H�. Mutes the Rear Rch when the base is �H�. Drives the Pre Mute sw (Q351, 352, 355, 356) when the base is �L�. Mutes the Front Lch when the base is �H�. Mutes the Front Rch when the base is �H�. When the panel is attached, the base goes �L�, turning the Tr ON to supply 5V to the panel. When panel is taken off, panel 5Vcut off. ILLUMI lights when the base of Q153 is �H�. ILLUMI FM ON ILLUMI AM ON Audio ON Audio P-CON ON Audio P-CON P-ANT ON OUT
Amplifies the front L/R and the rear L/R to 50W maximum. Controls logic for muting. �L� when detection voltage goes below 3.5V or less. �L� when the back-up voltage becomes more than 24V (momentary power down). �H� when the back-up voltage becomes less than 24V. �L� when B.u is present. �H� when B.u is absent or momentary power down is detected. �L� when Acc is present. ON when the base is �L�.
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