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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.
PT-56DLX75-K / PT-61DLX75-K
No sound from both L-CH and R-CH built-in Speakers
Check that there is an audio signal to the Audio Out Terminal from all input terminals. (All inputs are NG.) Replace the TV Unit (Base C.B.A. (Circuit Board A)). Check IC3002 and the surrounding parts. Replace if necessary. (Only Audio1, 2, OR 4 input is NG.)
Replace the TV Unit (Base C.B.A. (Circuit Board A) or Rear Jack C.B.A.). Check audio signal line between Input Jack on the Rear Jack C.B.A. and IC3002 on the Base C.B.A. (Circuit Board A), and repair if necessary. Still NG, replace IC3002 on the Base C.B.A. (Circuit Board A).
(Only Audio3 input is NG.)
Replace the TV Unit (Base C.B.A. (Circuit Board A) or Front Jack C.B.A. (Circuit Board FJ)). Check audio signal line between Input Jack on the Front Jack C.B.A. (Circuit Board FJ) and IC3002 on the Base C.B.A. (Circuit Board A), and repair if necessary. Still NG, replace IC3002 on the Base C.B.A. (Circuit Board A).
(Only Tuner input is NG.)
Replace the TV Unit (Base C.B.A. (Circuit Board A) or Digital Tuner C.B.A. (Circuit Board DT)). Check the following parts on the Digital Tuner C.B.A. (Circuit Board DT) - Tuner, IC8332, IC8240, IC8200, IC821, and the surrounding parts. Check the following parts on the Base C.B.A. (Circuit Board A) - IC3002 and the surrounding parts.
OK Replace the TV Unit (Base C.B.A. (Circuit Board A) or Power C.B.A. (Circuit Board P)). Check IC3002, IC3003, IC2303, IC2301 and the surrounding parts. Replace if necessary.
No sound from built-in L-CH Speaker only
Press "MENU" button on the remote and select "SOUND" in MENU screen. Then press "OK."
No sound from built-in R-CH Speaker only
Press "MENU" button on the remote and select "SOUND" in MENU screen. Then press "OK."
Verify the "BALANCE" is in the center position. NO Set to the center position. Still NG Swap the Speaker Connectors to confirm the Speaker failure. NO YES Replace the L-CH Speaker.
Verify the "BALANCE" is in the center position. NO Set to the center position. Still NG Swap the Speaker Connectors to confirm the Speaker failure. NO YES Replace the R-CH Speaker.
Replace the TV Unit (Base C.B.A. (Circuit Board A))
Replace the TV Unit (Base C.B.A. (Circuit Board A))
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