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There are currently no product reviews.
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Very fast service, best quality of the service manual and the schematics
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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.
SECTION 3 MECHANICAL ADJUSTMENTS
PRECAUTION 1. Clean the following parts with a denatured alcohol-moistened swab : record/playback heads pinch rollers erase head rubber belts capstan idlers 2. Demagnetize the record/playback head with a head demagnetizer. 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
Torque FWD FWD back tension REV REV back tension Torque meter CQ-102C Meter reading 28 to 71g � cm (0.39 � 0.99 oz � inch) 1 to 7g � cm (0.01 � 0.10 oz � inch) 28 to 71g � cm (0.39 � 0.99 oz � inch) 1 to 7g � cm (0.01 � 0.10 oz � inch) 56 to 122g � cm (0.78 � 1.69 oz � inch) 100g or more (3.53 oz or more) 100g or more (3.53 oz or more)
SECTION 4 ELECTRICAL ADJUSTMENTS
DECK SECTION 0 dB=0.775V
1. Demagnetize the record/playback head with a head damagnetizer. (Do not bring the head demagnetizer close to the erase head.) 2. Do not use a magnetized screwdriver for the adjustments. 3. After the adjustments, apply suitable locking compound to the parts adjusted. 4. The adjustments should be performed with the rated power supply voltage unless otherwise noted. 5. The adjustments should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.) 6. The adjustments should be performed for both L-CH and R-ch. 7. Switches and controls should be set as follows unless otherwise specified.
Tape P-4-A100 WS-48B Signal 10 kHz, �10 dB 3 kHz, 0 dB 315 Hz, 0 dB Used for Azimuth Adjustment Tape Speed Adjustment Level Adjustment
CQ-102C CQ-102RC
P-4-L300
Record/Playback Head Azimuth Adjustment Procedure : 1. Mode : Playback
test tape P-4-A100 (10kHz, �10dB) MD OUT (JK301) level meter
CQ-102RC
FF/REW FWD tension
CQ-201B CQ-403A
REV tension
CQ-403R
set
+ �
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