LG DP132 Service Manual page 26

ELECTRICAL TROUBLESHOOTING GUIDE
A
RESET or power on.
Show "SET"?
YES
Set language
YES
Does
tray move inside
when it is not at closed
position?
YES
B
Flash
NO
memory operates
properly?
SPHE8202RQ-D
VIDEO outputs
properly?
Have TV
signal output?
Check AV cable
connection to TV set.
Normal
NO
OPEN_SW & CLOSE_
SW signals?
Normal
OPEN & CLOSE
signal?
Normal
FAN_TRAY+ & FAN_
TRAY- signal?
Check the cable connection
between main PCBA and loader.
3-13
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
Check connection lines
between FLASH &
SPHE8202RQ-D and the
FLASH access time whether is
suitable or not.
Check the related
circuit of SPHE8202RQ-D
Check the filtering and
amp circuit of TV signal.
Check the load
OPEN & CLOSE switch.
Check the Tray control IO pins
on SPHE8202RQ-D & CD5890.
Check the Tray control
amplifying circuit on Motor driver.