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Very quality copy of original service manual, which contains the circuit diagrams, PCB and lists of components, well as recommendation for calibration procedures of device, also everything else, that need for repair, tuning and use this oscilloscope.
All presented copies have high-resolution, so you can view all in detail.
This manual will very useful for simple owners and for repairers.
I recommend these manual, because myself is owner of Philips PM3216 and I need sometimes servicing these oscilloscope (principally calibrating).
Also, these document is an example of excellent design of technical documentation.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
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manual excelente completo , diagramas y esquemas bien presentados y buena calidad de imagen.
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muy buen manual completo de buena calidad de impresion preciso y detallado , muy útil para la reparación.
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The service manual is a good quality scan of the Panasonic NV-850, which is electrically identical to the Philips VR 6920, but mecanically just nearly.
ADJUSTMENT
A MAIN C.B
MECHANICAL EXPLODED VIEW 1 / 1
4 2
VOLUME
VR1
L104
PHONES
L105
L103
J1
6
PVC101 TC103 EXCEPT YH SFR 51 YH ONLY SFR 52 TC101 TC102 TC104
4 2 3
6
6
1 3
L101 (BAR-ANT)
L102
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<TUNER SECTION>
1. AM IF Adjustment L105 ....................................................................... 455kHz 2. AM Frequency range Adjustment L104 ......................................... 517kHz ± 5kHz<YU,YL> L104 .................................... 515kHz ± 5kHz<YZ,YH,YJ> TC104 .................................. 1775kHz ± 10kHz<YU,YL> TC104 ............................. 1670kHz ± 10kHz<YZ,YH,YJ> 3. AM Tracking Adjustment L101 ....................................................................... 600kHz TC101 .................................................................. 1400kHz 4. FM Frequency range Adjustment L103 ..................... 87.0MHz ± 0.1MHz<YU,YL,YH,YJ> L103 ...................................... 87.4MHz ± 0.05MHz<YZ> TC103 ................ 109.0MHz ± 0.1MHz<YU,YL,YH,YJ> TC103 ................................. 108.3MHz ± 0.05MHz<YZ> 5. FM Tracking Adjustment L102 .................................................................... 88.0MHz TC102 ............................................................... 108.0MHz
<TAPE SECTION>
6. Tape Speed Adjustment Settings : � Test tape : TTA�100 (Tape center) � Test point : PHONES JACK (J1) � Volume : NON-CLIP (MAX-10dB) � S-BASS : OFF � Adjustment location : SFR51 <YU,YL,YZ,YJ> SFR52 <YH> Method : Play back the test tape and adjust SFR51 or SFR52 so that the frequency becomes 3000Hz ± 10Hz (FWD). Then confirm WOW is less than 0.50%.
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