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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.
TUNER SECTION
Cautions during repair
0 dB = 1 µV
When the tuner unit is defective, replace it by a new one because its internal block is difficult to repair.
FM Auto Scan/Stop Level Adjustment Setting : SOURCE button : FM FREQUENCY SELECT switch (C8100) : FM 200K
FM RF signal generator antenna terminal
TEST MODE
This set have the test mode function. In the test mode, FM Auto Scan/Stop Level and AM (MW) Auto Scan/Stop Level adjustments can be performed easier than it in ordinary procedure. <Set the Test Mode> 1. Set the �OFF� mode. 2. Push the preset 4 button. 3. Push the preset 5 button. 4. Press the preset 1 button for more than two seconds. 5. Then the display indicates all lights, the test mode is set. <Release the Test Mode> 1. Push the OFF button. Note on Adjustment The adjustments of tuner section, should be performed according to the following sequence. 1. FM Auto Scan/Stop Level Adjustment 2. FM Stereo Separation Adjustment (WIDE) 3. FM Stereo Separation Adjustment (NARROW) 4. FM RDS S-Meter Adjustment (XR-C8100R only) 5. AM (MW) Auto Scan/Stop Level Adjustment
0.01 µF
Carrier frequency : 97.9 MHz (C8100) 98.00 MHz (C8100R) Output level : 22 dB (12.6 µV) Mode : mono Modulation : 1 kHz, 22.5 kHz deviation (30%)
Procedure : 1. Set to the test mode. 2. Push the SOURCE button and set to FM. Display
SHUF
*1
*2
REG
3. Push the preset 3 button. Display
SHUF
*1 *2
REG
4. Adjust with the volume RV2 on TUX10 so that the �FM� indication turns to �FM0� indication on the display window. But, in case of already indicated �FM0�, turn the RV2 so that put out light �0� indication and adjustment. Display
SHUF
*1 *2
REG
*1 : XR-C8100R has the �98.00� displayed. *2 : �REG� is displayed only for XR-C8100R. Adjustment Location : See page 28.
� 25 �
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