Very,very good manual.It was very explicit and readble.It was helpfull.Thanks.
Text excerpt from page 21 (click to view)
FLOW CHART NO.13 PON 1.8V is not outputted. Is 2.5V voltage supplied at pin(1) of IC1002? Yes Is the "H" pulse inputted into pin(4) of IC1002? Yes Replace IC1002. No No Check D1013, C1014 and the periphery circuit. Check PWRCON line.
FLOW CHART NO.14 The disc tray cannot be opened and closed. (It can be done using the remote control unit.) Is 0V voltage supplied to Pin(9) of IC2001 when the OPEN/CLOSE button is activated on the DVD? No Check the SW2014 and OPEN/CLOSE button.
Yes See FLOW CHART NO. 15. <The disc tray cannot be opened and closed.>
FLOW CHART NO.15 The disc tray cannot be opened and closed. Replace the DVD Main CBA Unit. No improvement can be found. Yes Replace the DVD Mecha. No The malfunction of the original DVD Main CBA Unit.
FLOW CHART NO.16 [No Disc] is indicated. (When the focus error occur.) Replace the DVD Main CBA Unit. No improvement can be found. Yes Replace the DVD Mecha. No The malfunction of the original DVD Main CBA Unit.