Complete Pcb Codes For After Sales Service - Sanyo CE29FFV2-F Service Manual

THE TV SET DOES NOT START
AND THERE IS NOT
AN ERROR INDICATION
Does the LED flash
only one time?
No
- Verify SCR850 and its control circuit
Does the LED remain highlighted?
Yes
Put the TV set "ON" by pushing
front keys (P+ or P-)
The TV set remains stopped
Check TO396
(16/9&BSYNC in Stand_By mode)
OK
Check the path of
+5VM at pin 44 of IC100
- N.1: If there is an IC800 failure, and R810 was openned, it is strongly recommended to replace also the resistors R804 and R805

19 Complete PCB codes for after sales service

CRT (PHILIPS)
General PCB
+ Socket CRT
+ Audio PCB
Socket PCB
General PCB
Audio PCB
The power supply
powers on and then stops
Yes
oscillation (the over voltage
protection is working)
- Force a B_LOW situation (put a jumper between C-E of Q850)
-SCR850 failure
OK
Is the power supply in
protect mode?
No
(it sounds like a "grig"?)
Yes
Check:
*Q650
*Shortcircuits in secundary windings
Check that the power supply
NG
is working in burst mode
OK
Check the 16/9&BSYNC
signal generator circuit
Yes
Probably:
- IC800 failure (N.1)
- secondary diode failure
CE28FV2-E
A66EAK071X11
6110375000
7040002706
7110017006
7140001301
Check the winding continuity of
the B1generator
OK
Check D856
OK
- Connect A-K of SCR850
Check B6 (15 volts aprox.)
NG
Is there a voltage
level in secondary
No Yes
windings?
No
Check:
*IC100 oscillator (X100, C108, C109)
*IC100 reset circuit (Q106 and perifery)
Is R810 fused?
CE25FV2-E CE21FV2-E
A59EAK071X11 A51EAL155X10
A51EAL155X11
6110375000 6110374904
7040002706 7040002904
7110017006 7110017105
7140001301 7140001301
15
Service Manual MS CE25FV2-E
Probably there is a
failure in the control loop
Check +5VM
OK
OK
Replace IC100
No
Check:
*Main power supply (+BM)
*IC800 power supply (B8)
OK
Probably IC800 failure