LG RH4820W Service Manual page 72

Writing Part Check
Load tray with DVD ±R/RW disc.
Run and write with writing tool.
Does the
blink of LED1,LED2 occurs
during writing?
YES
Does writing finish
without any error?
YES
Is the written file
read normally?
YES
OK
Check and replace the connection of
IC202 pin 130.
NO
• Check the connection between IC302
pin 58,59 and LED.
• Check and replace the LED1,LED2.
NO
NO
YES
3-92
Do the IC302
pin 58,59 output toggle
signals during writing?
YES
Check and replace the IC302.
Eject tray.
Go to "LD CHECK".
Is the re-written file
read normally?
NO
Is SHAPCRE
input signal pulse?
(IC107 pin 56)
YES
Check and replace IC107,IC202.
NO