Das Service Manual war von der ersten bis zur letzten Seite sehr informativ und hilfreich. Die Darstellung aller Teile war klar und der Text gut lesbar.
Vielen Dank, das war nicht der letzte Download bei ownner-manuals.com.
It's a grate service manuals.Have many details and the writing it's so clear.You have all you want in manual,nothing missing,belive me.I'm verry satisfied of this manual.
The manual describes this product very good. It has the basic things to know and also a more detailed look. Very well made!
Text excerpt from page 74 (click to view)
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.