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The service manual is as described and received the link to the download sooner than expected. Great service, quality product. This site is a big help in the electronics repair business.
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Il service manual molto accurato. Rapidi nella risposta
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Quick site processing. A complete and very useful manual with all details. Thank you!
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Quick service response. A useful and very rare service manual with all details. I recomend this service.
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I ordered this manual sometime in the afternoon and I received it on my e-mail the same evening.
This is a fantastically good and properly scanned copy of the original manual. All pages are of the same scale and they overlap each other. It means that you can print the manual and easily make it as a convenient paper manual.
The content of the manual is fantastic. Alignment descriptions, PCB layouts and elementary diagrams are explicit and precise. I immediately found what I was looking for. Thanks to this manual and Owner-Manuals.com my amplifier is alive again. Many thanx indded!
TROUBLESHOOTING HINTS
1. No Character
No Character
Are the Contrast & Brightness Controls in OSD menu maximum? Yes
No
Change the Contrast & Brightness control value to maximum
Is whole screen bright? Yes
No
No Raster
Refer to No Raster
Is CRT Cathode (Rk, Gk, Bk) signal level normal? No
Yes Rk, Gk, Bk
Check the peripheral circuit of CRT
About 30~35Vpp
Is the output signal of the (pin 14, 16, 18) pre-amp IC801, normal?
Yes
Check the video output circuit and its ambient circuit
No Is 12V line normal? Yes Is blanking pulse (pin 20 of IC801) normal? Yes No 5Vp-p Check the clamping pulse circuit No Trouble in 12V line of the Main PWB
Is input signal normal? Yes Trouble in IC801 and its ambient circuit
No
Check the signal cable
15
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