Harman Kardon BDS 235 Service Manual ▷ View online
5-11 Trouble shooting Chart
OPTICAL does not work
OPTICAL does not
work
work
Go
Check the DVD mode is
OK, audio output is ok
No
Replace the Main board
Check the optical
connector is ok
Yes
Replace the connector
No
Yes
Replace the U607
Check U607 is
broken.
broken.
Replace the Main board
No
Yes
Check U607 PIN5
+3.3V
+3.3V
Yes
Check the main board U607
power supply circuit
No
5-12 Trouble shooting Chart
Fan can not rotate
Hdmi input does not output
FAN can not rotate
Check the voltage
of FAN
Go
Check the FAN
power supply circuit
No
OK
Replace a new fan
HDMI input does
not output
Go
Check the DVD mode is
OK,HDMI output is ok
OK,HDMI output is ok
No
Replace the Main board
Yes
Replace the connector
check connector is HDMI IN 1
(or 2)，AND SET HDMI IN 1 (or
2) INPUT
(or 2)，AND SET HDMI IN 1 (or
2) INPUT
Correct connection
No
OK
OK
Check HDMI IN 1 (or 2)
connector is ok
No
Replace the Main board
OK
5-13 Trouble shooting Chart
HDMI/OPTICAL Output does not work
HDMI/optical output
does not output
Check the HDMI
/optical
output connector is ok
Go
Replace the connector
No
Yes
Replace the Main board
5-14 Trouble shooting Chart
WIFI does not work
WIFI does not work
Check the WIFI module
and antenna is OK
Go
Replace the WIFI
Module or antenna
OK
Check the WIFI_3.3V
supply is OK
Check the WIFI
power supply circuit
OK
Replace the Main board
NO
NO
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