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This is a service manual in every sense of the word ( French and German versions of the text are included, as well as English..)
There are explanations of the mechanical and electrical functions, plenty of mechanical drawings, and the needed schematics. The quality of the scanning is excellent - all the component values are clearly legible - and very usefully there are pcb component layouts, so you can find a component on the schematic, and then very quicky pinpoint its physical location on the relevant pcb.
I cannot see how I can give this manual any less than the maximum 5 stars! Great value for money, which will pay for itself immediately. Excellent all round!
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the manual is great and especially hard to find... thanks for the great service and having a hard to find manuel_
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hat alles sehr gut geklappt. Das Servicemaual ist gut zu verwenden. Die Pläne und Schrift
ist klar und leserlich. Außerdem preiswert. Grüße an alle Hifi-Bastler
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I got the manual quickly after the payment was transfered (1 day). The manual was exactly what i needed and the updates via e-mail were great. Thanx!
21HS-50S
TROUBLESHOOTING TABLES.
NEITHER VERTICAL NOR HORIZONTAL SYNCHRONIZATION
CIRCUIT TO BE CHECKED: Sync. Separator Circuit.
Check pin33 and 34 of IC801.
DEFECTIVE VERTICEL AMP. AND VERTICAL LINEARITY
Readjusted vertical size. (Bass Data)
Vertical linearity and size is abnormal.
Check R502,R505
NO VERTICAL SCAN
Check IC501 bias. Normal Abnormal
Check C502 and C514.
Check IC501.
NO SPECIFIC COLOUR
NO YES
Is some colour produced in B/W broadcast reception? Check IC801,R801,R802, R803,D804,D805,D806 and Q801.
YES
Is the white balance properly adjusted?
NO
Readjusted the white balance.
The picture colour is cyan.
The picture colour is magenta.
The picture colour is yellow.
Check Q870,Q885 and their adjacent circuits.
Check Q871,Q883 and their adjacent circuits.
Check Q872,Q887 and their adjacent circuits.
www.rtv-horvat-dj.hr 35
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