Renault LAN5200WR1 - Page 8

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