Sanyo CE29FFV2-F Service Manual page 24

Are retrace lines visible ?
*Check +B3 at IC500
*R506 posibly fused
*IC500 posibly damaged
Check +B1 in
The pulses level
pin 2 of T650
is low
OK
Check D663 and the
path of +B10
OK
Check the path of the
horizontal deflector
yoke to the circuit
OK
Check the horizontal
deflection path
OK
Probably: abnormal positive polarization
*X400 damaged of H_FLY or H_SYNC signals
*T650 failure
ERROR_3
Does it happen quickly
No
after switch on?
Yes
Switch on the TV set with PL100
pushed (protect mode disabled)
Does it sound line
Yes
stage abnormal?
No
Is there picture ?
Yes
No
Check the path from the
E/W output to the diode modulator
With the TV set switched off
and the tester in ohms, does
it measure shortcircuit between
pins 11 and 7 of IC701?
Check TO585
There are not pulses
(Collector of Q600)
The pulses are OK
Possible
heater shortcircuit
Connect the D660
anode to ground
Is there horizontal
Yes
drive?
There is an H_FLY Probably:
generator circuit *X400 damaged
failure. There is an *IC400 failure
*There is not +8V at R418
*R418 opened
* Possible failure of T650
* Possible shortcircuit in
secondary of T650
* Check B10
Possible failure in protect circuits
Is the E/W (Q750, Q751, Q653, Q651, Q652)
Yes
correction OK? Check that the voltage level
No
OK
Probably:
* IC701failure
Yes
* D750 failure
No
Check the E/W signal
from the IC400 output
to the IC701 input
Check R701
OK
Check +B5 in
D600 cathode
OK
Check TO270
NG
(H_OUT)
OK
No
Check the Q600
signal at the base
OK
Probably:
*Primary T600 opened
*There is not B11 at T600
*Q600 damaged
13
Service Manual MS CE25FV2-E
in -PD&FAIL is 5V.
OK
Probably:
Leakage in C402 or C403
(Bandgap capacitance)
NG
Probably IC701
is damaged