Samsung SMX-K40BN Service Manual page 13

AV output is not available?
Is AV cable Standard?
Yes
Is AV_Jack_Det High?
Yes
Play the Video File
Is Audio_Out OK?
(IC701 NO. 26,27)
Yes
Is Video_Out OK?
(IC704 NO. 6)
Yes
Test Completed.
Samsung Electronics
No
Replace AV Cable
No
Change AV_Jack
No
Check/Replace MIC, Audio Codec
No
Check/Replace Video
AMP (IC704 NO1,6)
AUDIO : Sample of 1khz recording
AV_JACK_DET:JACK NOT
INSERTED
Checking AV Jack (J701)
Pin Number
POS.1 (A-R_OUT)
POS.2 (GND)
POS.3 (VIDEO-OUT)
POS.4 (AV_JACK_DET)
POS.5 (A-L_OUT)
VIDEO : below is the sample
AV_JACK_DET : JACK INSERTED
Troubleshooting
AV JACK
Not in-
Inserted
serted
0 V 0 V
0 V 0 V
- -
LOW(1.0V) HIGH(3V)
1.0V 0V
4-5