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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.
M-640V/645V/647V SECTION 3 MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened swab : record/playback/erase head pinch roller rubber belts capstan 2. Demagnetize the record/playback/erase head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. The adjustments should be performed with the rated power supply voltage unless otherwise noted. Power supply voltage: 3 Vdc TAPE SPEED switch : 2.4 cm Torque Measurement
Mode Forward Fast Forward Torque Meter CQ-103M CQ-201M Meter Reading 0.49 � 1.27 mN � m (5 � 13 g � cm) (0.07 � 0.180 oz � inch) more than 2.95 mN � m (more than 30 g � cm) (more than 0.42 oz � inch) Rewind CQ-201M more than 2.95 mN � m (more than 30 g � cm) (more than 0.42 oz � inch)
SECTION 4 ELECTRICAL ADJUSTMENTS
Specified voltage: 3 V (DC) Test Tape
Type S-2-A030 WS-24 WS-12 Signal 3 kHz, � 20 dB 3 kHz, � 10 dB Used for Head Azimuth Adjustment Tape Speed Adjustment Tape Speed (cm/s) 2.4 2.4 1.2
Record/Playback/Erase Head Azimuth Adjustment
Setting: [VOL] control : mechanical mid [TAPE SPEED] switch : 2.4 cm/s [VOR] switch : OFF Procedure: 1. Mode: Playback
test tape S-2-A030 (3 kHz, �20 dB) set
level meter 16 � + �
Tape Tension Measurement
Mode Forward Tension Meter CQ-403M Meter Reading more than 20 g (more than 0.28 oz)
[EAR] jack (J101)
2. Turn the head azimuth adjustment screw to obtain the maximum reading on level meter.
Note: Several peaks may appear, but the maximum.
Adjustment Location: First remove the cover (AZ).
Remove the cover (AZ).
head azimuth adjustment screw
8
 $4.99 M-645V SONY
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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