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This Service Manual was exactly what I needed to repair my Philips TV. The purchase was convenient and I received the manual at the same day I paid for it.
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Very pleased with the whole process. Great commication and very easy instructions to order and to download the manual.
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It's a good manual, this one it's a scan from the original factory service manual, great quality 100% readeable. definetely it worths what I paid for.
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A good manual! fast service and good qualityi for pdf document.
thanks!
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Very helpful and complete manual. Maybe only one negative is schematics have sometimes unreadable name of the parts. But it's not a big problem.
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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