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There are currently no product reviews.
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Thanks you very much for this "hard to find" service manual.
Will help a lot in repairing this tuner.
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I have this hi-fi system for a long time and I need to repair some things. Founding this manual will be very helpfull :)
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It is pretty good. The schematics were covered all components, the manual also provide the parts list . It's useful for the trouble shooting.
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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.
ADJUSTMENT
A MAIN C.B
MECHANICAL EXPLODED VEW 1/1
VR1
VOLUME
L104 IC1
PVC 101 PVC1
2
L102 TC101 TC104 TC102
SFR51
3 2
TC103
L103
SFR 1 L105
PHONES J1
P HEAD
6
1
5 3
4
67
L101 BAR ANT
2 FWD 7
<TUNER SECTION>
1. AM IF Adjustment L105 ................................................................... 455kHz 2. AM Frequency range Adjustment L104 ............................................ 515 ± 5kHz <YJ, YZ> L104 .................................................. 517 ± 5kHz <YL> TC104 ..................................... 1670 ± 10kHz <YJ, YZ> TC104 ........................................... 1775 ± 10kHz <YL> 3. AM Tracking Adjustment L101 ................................................................... 600kHz TC101 .............................................................. 1400kHz 4. FM Frequency range Adjustment L103 ............................................ 87.0 ± 0.2MHz <YL> L103 ............................................ 87.4 ± 0.1MHz <YZ> L103 ............................................. 87.0 ± 0.2MHz <YJ> TC103 ....................................... 109.0 ± 0.2MHz <YL> TC103 ....................................... 108.3 ± 0.1MHz <YZ> TC103 ........................................ 109.0 ± 0.2MHz <YJ> 5. FM Tracking Adjustment L102 ................................................................ 88.0MHz TC102 ........................................................... 108.0MHz
<TAPE PLAYER SECTION>
6. Tape Speed Adjustment Settings : � Test tape : TTA�100 (Tape center) � Test point : PHONES JACK (J1) � Volume : NON-CLIP (MAX - 10dB) � Tape/Radio : TAPE � Tape select : NORM � MSP : CLASSIC � Adjustment location : SFR51 Method : Play back the test tape and adjust SFR51 so that the frequency becomes 3000Hz ± 10Hz (FWD). Then confirm WOW is less than 0.50%. 7. Azimuth Adjustment settings : � Test tape : TTA�330/TTA-420 � Test point : PHONES JACK (J1) � Volume : MAX � Tape select : NORM � MSP : CLASSIC � Adjustment location : Head azimuth adjustment screw Method : Play back the 8kHz signal of the test tape and adjust the screw so that the output becomes maxi mum.
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