Fault flow chart 2.3
Fault symptom:
- No start up
- Standby light = red
Possible causes:
- PIN-code locked
- Option 0
- IR/Autocontrast defect
- Main chassis defect
- Beo4 / Remote control defect
Press TV on Beo4
OSD displays
“WAIT”
- - - - - - - -
PIN-code locked
Set the television in
OPTION
Does Standby led
blink one time?
- - - - - - - -
Option 0 = IR receiver
is disabled
Ensure that the
television is in
Standby mode
- - - - - - - -
The TV is
locked for 3 hours
since last PIN-code
was entered
Press TV on Beo4
TV OK?
- - - - - - - -
IR receiver is enabled
Check Beo4 on
another product
Other product
responds correctly
- - - - - - - -
Beo4
No
Yes
Replace the
batteries in Beo4
TV OK?
- - - - - - - -
Beo4
Beo4 defect
Try a new Beo4
TV OK?
- - - - - - - -
Beo4
Replace
Main chassis
(module 999)
- - - - - - - -
Main chassis defect
Confirm approx. 0.6V
AC on PCB 0 P33
pin 3
with a multimeter
while pressing TV on
Beo4 (A short signal)
(Look at the bar-graph)
Replace PCB
IR/Autocontrast
Confirm the same
signal on
PCB P9 pin
Check Cable
W6
Reconnect cable
Replace Main Chassis
Note
PCB0 P33 pin3!
By pressing Menu on Beo4, it is
possible to measure a good signal
(approx. .7V AC)
PCB0 P33 measuringspoints
1
3
5
2
4
6
ABO-CENTER
v/HENRIKSENS
ELEKTRONIK