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The document was usefull, and it was exactly what I was looking for.
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OK?..manual is complet and helpfull... for repairing such a old and rare boombox like JVC PCM it is necessary...
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Super Anleitung. Ordentliche Auflösung. Das ganze noch in Deutsch wäre zu schön. Alle Datenblätter sind sauber Kopiert und alle Leitungswege sind sauber ausgeführt
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Thanks God for the internet and thanks for the service like this - proffessional solution on time.
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About the service it's very fast and reliable. About the manual the quality is high enough to read even the tiniest details on the wiring diagrams so you can't ask much more than that, let it alone for a manual of a product from 20 years ago. Thank you, very satisfied.
ELECTRICAL ADJUSTMENTS
2-5: CUT OFF 1. Place the set with Aging Test for more than 15 minutes. 2. Set condition is AV MODE without signal. 3. Using the remote control, set the brightness and contrast to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (5) on the remote control. The Fig. 2-2 appears on the display. 5. Press the channel button (5) on the remote control. 6. Adjust the Screen Volume until a dim raster is obtained. 2-6: FOCUS 1. Using the remote control, set the brightness and contrast to normal position. 2. Receive the monoscope pattern. 3. Turn the Focus Volume fully counterclockwise once. 4. Adjust the Focus Volume until picture is distinct. 2-7: SUB BRIGHTNESS (TV) 1. Receive the black pattern*. (RF Input) 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 4. Press the channel button (1) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control to adjust the screen brightness from bright to dim. Then set to the completely dim point. * The Black Pattern means the whole black raster signal. Select the "RASTER" of the pattern generator, set to the OFF position for each R, G and B. 1. BRIGHT 2. CONTRAST 3. COLOR 4. TINT 5. SHARPNESS 6. OSD CONT 7. 8. 0% 2-9: SUB COLOR (TV) 1. Receive the color bar pattern. (RF Input) 2. Connect the synchro scope to TP801. 3. Using the remote control, set the brightness, contrast, color and tint to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 5. Press the channel button (3) on the remote control. 6. Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope. 7. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 95 ± 5% of the white level. (Refer to Fig. 2-4) White 0%
95%
Red Level White 100% 2-10: SUB COLOR (AV) 1. Receive the color bar pattern. (Audio Video Input) 2. Connect the synchro scope to TP801. 3. Using the remote control, set the brightness, contrast, color and tint to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 5. Press the channel button (3) on the remote control. 6. Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope. 7. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 95 ± 5% of the white level. (Refer to Fig. 2-4) 2-11: SUB TINT (TV) 1. Receive the color bar pattern. (RF Input) 2. Connect the synchro scope to TP803. 3. Using the remote control, set the brightness, contrast, color and tint to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 5. Press the channel button (4) on the remote control. 6. Press the VOL. UP/DOWN button on the remote control until the section "A" becomes a straight line. (Refer to Fig. 2-5) Fig. 2-4
0. RETURN
Fig. 2-3
2-8: SUB BRIGHTNESS (AV) 1. Receive the black pattern*. (Audio Video Input) 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 4. Press the channel button (1) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control to adjust the screen brightness from bright to dim. Then set to the completely dim point.
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