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There are currently no product reviews.
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muy buen manual por lo completo de este algunos esquemas estan muy divididos lo que hace algo dificil el seguimiento.
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very good manual, with detail and clarity in esquematic diagrams and waveforms .
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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.
1
The pickup transmission initial operation is carried out to determine the initial position by transmitting the pickup to the innermost position once (start-limit switch (pin 4 of CN503) develops "L".) and to the external direction at low speed (start-limit switch develops "H", turning off the switch.).
Pickup (P.U.) transmission initial operation does not occur.
Does pulse of 1.65V 1.65V develop at pin 162 of IC401? Y Check feed gear.
N
Check BUS between IC401 and IC605 and oscillation.
Fig. 1-3-2
2-1
"No disc" misjudgement display of disc presence.
N
Does lens move with UP/DOWN full stroke in focus direction? Y
3
N
Is laser current normal? Y
Does RFSB signal develop more than 0.3V?
N
Y Check peripheral circuit of IC605. Does focus search voltage of 1.65V 0.4V develop at pin 23 of IC503 (E544)? Y Does search signal output at both edges of focus coil? (Pins 15 to 18 of CN501) Y Check pickup head and wiring. N N Check IC401. Replace pickup head. Check IC502. Lens cleaning.
Check IC503.
Fig. 1-3-3
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