Philips 32HFL3331/93 Service Manual page 17

Service Modes, Error Codes, and Fault Finding
Check the voltage of
U17.8~11,it 24v?
Yes
Check the voltage of
U17.31 & U17.23,is it OK?
Yes
Check the wave of
I2C&I2S OK?
Yes
Check No
U17.24,U17.21,
U17.36 is 3.3V?
Yes
Check
R & L speaker
Colour system is
Yes
Right & another
channel colour is
right ?
No
Reset
To
Local system
Picture OK, No sound
No
Check
L139,L140
No
No
Change the
software of U10
Check the
L103,L101,R361,R362
No
Change the U17
Figure 5-4 Picture okay, no sound.
No colour
Dose the TV
signal too weak?
YES
Check
Tuner Input
cable & antenna
Figure 5-5 No colour.
TCM3.1A LA
Yes
Check the Q24
&,is it OK?
Check the
NO
voltage of
Z1.1 OK?
YES
Check E2PROM
U21
YES
Fine Frequency
5. EN 17
Change the
software of U10 &
U8
18520_206_090313.eps
090313
NO
Check
U2 & I2C
18520_207_090313.eps
090313
2010-Jun-25