Harman Kardon AVR 134 - Page 24

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Symptom Cause and Remedy Ref No.
FM Failure. A) FM Mute adjustment inferior.
B) FRONTEND 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) μCOM I.C & Resonator inferior.
1. μCOM I.C B+(3.3)V check.
2. Micom control data check.
I.C NO. (1) / I.C PinNo. (8, 21)
I.C No. (101)
I.C Pin No. (20, 23, 24, 60, 61)
AM Failure. 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) μCOM I.C & Resonator inferior.
1. μCOM I.C B+(3.3)V check.
2. Micom control data check.
I.C NO. (1) / I.C PinNo. (8, 21)
I.C No. (101)
I.C Pin No. (20, 23, 24, 60, 61)
Stereo Effect Failure.
Stereo does not light up.
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) μCOM I.C & Resonator inferior.
1. μCOM I.C B+(3.3)V check.
2. Micom control data check.
I.C No. (101)
I.C Pin No. (20, 23, 24, 60, 61)
Tuner Sound Dead.
1. “L / R” Channel dead.
2. “LEFT” Channel dead.
3. “RIGHT” Channel dead.
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) I.C NO. (1) / I.C PinNo. (8, 21)
HDMI Output Dead. 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.
I.C03 (HDMI)
I.C04 (HDMI)
I.C112 (MAIN)
I.C01 Pin No. (14, 15)