Renault LAN5200WR1 Service Manual page 8

• AUDIO OUTPUT ERROR
AUDIO OUTPUT ERROR
CN100 CABLE
CONNECTION OK?
DSP INPUT
VOLTAGE(DC3.3 V) OK?
(IC300 PIN87(R341))
DSP OUTPUT OK?
BIAS 1.8 V, (R365(FL), R366(FR),
R362(RL), R361(RR))
POWER AMP INPUT
VOLTAGE (=13.5 V)
OK? (L100 PIN1)
POWER AMP_STBY
INPUT OK? (Q115 PIN2 (POWER
ON : 0→13.5 V))
POWER AMP OUTPUT OK?
(PIN 4&6, 8&10, 18&20, 22&24)
CONNECTOR CHECK
OR REBOOTING
YES
YES
YES
YES
YES
YES
NO
NO
NO
OUTPUT SHORT & DSP CLK (C317)
∗ CHECK WAVE FORM
NO
NO
TR CNTL CHECK(Q116 PIN2)
∗ CHECK WAVE FORM
NO
IC110(AMP) OUTPUT CHECK
2-3
CABLE CONNECTION &
CABLE CHECK
LDO IC107 CHECK
CHECK
Q102, IC104 CHECK
IC401 CHECK