Checking Flow
SETTING : Attach the headset and
“
Listen to Radio
”
at Radio menu
Start
Check the Freq. at
pin4 of U102.
Freq.= 32.768kHz?
(Shown Graph 1)
X101 is working?
Check the pin1 of
X101.
Freq.= 32.768kHz?
Check the condition of U102
and external component.
Replace X101
Audio signal
appear at
R366, R367?
Check the FM Receiver circuit,
input voltage, soldering.
If problem, replace the defected
component.
Audio signal
appear at pin1
and pin8 of
U104?
Check the FM AMP circuit.
If problem, replace the defected
component.
Refer to Earphone Trouble part.
Yes
No
Yes
Yes
Yes
No
No
No
Graph 1. FM Radio Clock
Z3X-BOX.COM
Summary of Contents for LG-UD6100
Page 25: ...Circuit Diagram Z 3 X B O X C O M ...
Page 40: ...Test Points Circuit Diagram 4 3 5 UIM Trouble CON301 3 0V 3 2 1 Z 3 X B O X C O M ...
Page 46: ...Test points Circuit Diagram 4 3 8 MIC Trouble R371 C327 M301 MIC Z 3 X B O X C O M ...
Page 55: ...BACK_END_CLOCK M_CLOCK P_CLOCK VS DATA 0 Camera Locking Error Z 3 X B O X C O M ...
Page 62: ...Z 3 X B O X C O M 0 Ohm Pad 0 Ohm Pad DNI DNI ...
Page 63: ...Z 3 X B O X C O M 0 Ohm Pad 0 Ohm Pad DNI DNI ...
Page 64: ...Z 3 X B O X C O M ...
Page 65: ...Z 3 X B O X C O M ...
Page 66: ...Z 3 X B O X C O M ...