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Another excellent aquisition. Fine detailed manual. Thanks
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Good quality for the scan, complete, but as usual for Tascam, not so comprehensive !
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great manual readable & easy to downlaod to be recommanded
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Very useful, not the best scan, but definitely readable !
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Complete service manual, good quality scan, great buy !
PICTURE AND COLOUR DEFECTS
No picture Raster OK
Check video out signal at pin 38 of IC101
NO
Check the tuner pin voltages. Check the voltage 3.6-4.6 V at pin 18, 19 of IC101. Check and replace F101, IC101.
YES
Only white raster visible on screen
YES
Check CVBS signal with an oscilloscope. The video signal goes through R103, T104, R154, F104, T105, C150 to pin 40 of IC101
NO
There are flyback lines on the screen
YES
Check Hor. Flyback signal at pin 31 of IC101. Check and replace C129 which is connected to pin 11 of IC101.
NO
There are black drops on the screen.
YES
Check and replace C139
NO
No picture. There is a Red, Green or Blue raster on the screen.
NO
Check and replace R167, R206, R118, R136, R137, R135, IC101.
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