3. Test & debug flow
Check the AC Voltage on
Power PCB (110V or 220V)
NO
Check Fuse and connections
to AC inlet
YES
Switch on the Power switch
Is the DC Voltage
outputs OK?
(5V,3.3V,9V,±12V,5VA)
Repair or Replace Power PCB
NO
YES
Is 3.3V,1.8V and 2V DC
outputs normal on decode
PCB?
Check the regulators or related diodes.
NO
YES
Insert the upgrade disc to update
the FLASH memory code.
Update FLASH
successfully?
A
YES
NO
1. Check 27MHz system clock.
2. Check system reset circuit.
3. Check FLASH R/W enable signal LOE#,WRLL.
4. Check servo related circuit.
5. Check FLASH Memory related circuit.
Press the power key on front panel
Replace R-core Transformer
3-4
Summary of Contents for M5 C/AH
Page 21: ...2 SDRAM CLOCK FIG 2 1 3 TRAY OPEN CLOSE SIGNAL CH1 EJ CH2 EJ FIG 3 1 3 11...
Page 23: ...5 LENS CONTROL RELATED SIGNAL NO DISC CONDITION LDON FIG 5 1 CH1 DVD_LD CH2 CD_LD FIG 5 2 3 13...
Page 25: ...7 SPINDLE CONTROL WAVEFORM CH1 SPWM2 CH2 SPWM1 FIG 7 1 DVD CH1 SPWM2 CH2 SPWM1 FIG 7 2 CD 3 15...
Page 26: ...8 FOCUS ON WAVEFORM FSCON FIG 8 1 CD FIG 8 2 SACD 3 16...
Page 27: ...9 RF WAVEFORM 6 10 ES6168F AUDIO OPTICAL AND COAXIAL OUTPUT SPDIF 3 17...
Page 49: ......