Symptom
FM Failure.
AM Failure.
Stereo Effect Failure.
Stereo does not light up.
Tuner Sound Dead.
1. "L / R" Channel dead.
2. "LEFT" Channel dead.
3. "RIGHT" Channel dead.
HDMI Output Dead.
Cause and Remedy
A) FM Mute adjustment inferior.
B) FRONTEND inferior.
C) FM DET COIL inferior.
D) PLL & MPX IC check.
1. PLL & MPX I.C B+(5)V, B+(3.3)V check.
2. PLL control data check.(Data/CE/Clock)
E) TUNER B+voltage inferior.
F) μCOM I.C & Resonator inferior.
1. μCOM I.C B+(3.3)V check.
2. Micom control data check.
A) PLL & MPX IC check.
1. PLL & MPX I.C B+(5)V, B+(3.3)V check.
2. PLL control data check.(Data/CE/Clock)
B) TUNER B+ voltage inferior.
C) AM OSC COIL inferior.
D) μCOM I.C & Resonator inferior.
1. μCOM I.C B+(3.3)V check.
2. Micom control data check.
A) FM DET COIL inferior.
B) PLL & MPX IC check.
1. PLL & MPX I.C B+(5)V, B+(3.3)V check.
2. PLL control data check.(Data/CE/Clock)
C) μCOM I.C & Resonator inferior.
1. μCOM I.C B+(3.3)V check.
2. Micom control data check.
A) Connector's disconnection or disjunction.
Change or close insertion of the connector.
B) FM DET COIL inferior.
C) AM IFT COIL inferior.
D) PLL & MPX IC check.
1. SIGNAL IN / OUT terminal.
2. I.C driving voltage check.(+5V, +3V3)
A) I.C Regulator check.
1. DC voltage check. +(1.8)V
2. DC voltage check. +(3.3)V
3. DC voltage check. +(5)V
B) Micom control data check.
Selector control data check.
24
Ref No.
I.C NO. (1) / I.C Pin No. (8, 21)
I.C No. (101)
I.C Pin No. (20, 23, 24, 60, 61)
I.C NO. (1) / I.C Pin No. (8, 21)
I.C No. (101)
I.C Pin No. (20, 23, 24, 60, 61)
I.C No. (101)
I.C Pin No. (20, 23, 24, 60, 61)
I.C NO. (1) / I.C Pin No. (8, 21)
I.C03 (HDMI)
I.C04 (HDMI)
I.C112 (MAIN)
I.C01 Pin No. (14, 15)