Sony RB1G - Slide Number 47

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RB1G CHASSIS

W600A/ W603A/ W605A/ W607A/ W650A/ W651A/ W653A/

W654A/ W655A/ W656A/W657A/ W658A/ W670A/ W674A

Troubleshooting

3-2-2. LED BLINKING 3x (Audio Error) – BA2 and BM board only (not applicable for this model)

Check 12.5V

( at F4601) to GND

impedance

F4601,IC4601,etc

(B* Board)

Replace F4601

High

enough

Low impedance

IC4601

burn or broken ?

Replace IC4601

Yes

Check broken parts

around IC4601

IC4601,etc

(B* Board)

IC4601 or parts around IC4601 NG

Check the IC4601

Out pin 9, 16, 25, 32

Switching 0V to 12V

around 300-400kHz

Yes

Check the CN4601

DC level ~2V (at

JL4621~JL4624)

L4601-L4604

C4611-C4614

Yes

IC4601 NG

Check the IC4601

I2S line pin 5, 6, 7, 8

(at CL4601~CL4604)

IC9000 NG

Check the IC4601

pin 18 (at CL4606)

is HIGH?

Yes

Solder NG

Note:

(AYU2) – IC9000

(Brownie)- IC9001

Main Page

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3-3-1. No Sound : Audio (For all models)66
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3-3-2. No Sound : Audio (Additional : For Europe models only)74
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TE Model Probing Points202
HG, MD & LK Models Probing Points203
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3-10. Network Malfunction: Ethernet (Wired)210
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4-2. Transition of Each Micro’s Service Mode219
4-5. Change Data by Service Mode 2220
4-6. Save Changing Data by Service Mode 2221
4-7. Restore WB / Gamma Adj. Data to B board.222
4-9-1. STEP1223
4-10-1. STEP1224
4-12. Reset Panel Operation Time225
4-15-1. Tree 1226
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b) Self Diagnosis Display [2]228
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3-3-1. No Sound : Audio (For all models)307
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3-3-2. No Sound : Audio (Additional : For Europe models only)313
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BLE/X/J366
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TE Model Probing Points368
HG, MD & LK Models Probing Points369
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3-10. Network Malfunction: Ethernet (Wired)372
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Sony RB1G - Slide Number 47

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