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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.
ELECTRICAL ADJUSTMENT -2/5
5. DC Balance Check Requirement Measuring equipment: Digital multi-meter Test point: TP2, 3 1) Adjust the reception frequency of the main unit to 98.0MHz. 2) Check that the test point voltage difference between TP4 and TP5 is 0mV±500mV.
DIGITAL MULTIMETER V VT GND
<LW / MW ADJUSTMENT> For LW / MW adjustment, do wiring and connection as in the following.
60cm
Standerd Signal Generaor
SET TP Lch Rch GND
Connect to the respective measuring equipment
6. IF Adjustment (MW) Requirement Measuring equipment: Oscilloscope or Millivoltmeter Test point: TP8(Lch), TP9(Rch), GND Adjustment point: L802 1) Adjust the setting of Standard Signal Generator (hereinafter S.S.G.) to 999KHz of 30% variation. 2) Adjust the receiving frequency of the main unit at 999KHz. 3) While looking at the waveform on the oscilloscope, reduce the output level all the way (till a certain degree of is monitored through the oscilloscope). 4) Adjust L802 until the waveform of the oscilloscope reaches the maximum. 7. Tracking Adjustment (MW) Requirement Measuring equipment: Millivoltmeter Test point: TP8(Lch), TP9(Rch), GND Adjustment point: L952, L953 1) Adjust the S.S.G. setting to 999KHz of 30% variation and reduce the output level all the way (till a certain degree of is monitored through the oscilloscope). 2) Adjust the reception frequency of the main unit to 999KHz. 3) Adjust L952 until the value of the millivoltmeter reaches the maximum. 4) Adjust the S.S.G. setting to 603KHz of 30% variation and reduce the output level all the way (till a certain degree of is monitored through the oscilloscope). 5) Adjust the reception frequency of the main unit to 603KHz. 6) Adjust L953 until the value of the milivoltmeter reaches the maximum. 7) Repeat the adjustment 2 or 3 times from step 1 to 6 above.
OSCILLOSCOPE
CH1
CH2
GND
Lch Rch GND
AC MILLIVOLTMETER
TP8
GND
CH1
CH2
GND
TP9
-57-
 $4.99 XREC11 AIWA
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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