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This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
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Hi, this is a very clear manual, nice copy, not quite up to the standard of the very best available but better than many others. I think the price was especially fair for a hard to find manual and I would certainly use this manual seller again. Recommended.
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This schema available for me in good condition. I would highly recommend.
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Thanks for this "hard to find" service manual.
I apreciate the good quality of scanning and the pages scanned in A3 format.
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Helpd me mont a new carradio when prewius mont was a mess.
SECTION 4 MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened swab : record/playback/erase head pinch roller rubber belts capstan idlers 2. Demagnetize the record/playback/erase head with a head demagnetizer. (Do not bring the head demagnetizer close to the erase head.) 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage unless otherwise noted. Torque Measurement Mode FWD CQ-102C FWD Back tension REV CQ-102RC REV Back tension FF, REW CQ-201B Torque Meter Meter Reading 35 � 80 g � cm (0.49 � 1.11 oz � inch) 1 � 7 g � cm (0.012 � 0.097 oz � inch) 35 � 80 g � cm (0.49 � 1.11 oz � inch) 1 � 7 g � cm (0.012 � 0.097 oz � inch) more than 40 g � cm (more than 0.56 oz � inch)
SECTION 5 ELECTRICAL ADJUSTMENTS
PRECAUTION
1. The adjustment should be performed in the publication. (Be sure to male playback adjustment at first.) 2. The adjustments and measurement should be performed for both L-CH and R-CH. � Switch position DOLBY NR switch : OFF DIRECTION switch : A Standard Input Level Input terminal source impedance input signal level Standard Output Level Output terminal load impedance output signal level Test Tape Type WS-48A P-4-L300 Signal 3 kHz, 0 dB 315 Hz, 0 dB Used for Tape Speed Adjustment PB Level Adjustment TAPE OUT 47 k� 0.49 V (� 4 dB) TAPE IN 10 k� 0.49 V (� 4 dB)
0 dB = 0.775 V
� 13 �
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