Sony SWF-BR100 Service Manual page 40
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Also See for SWF-BR100:
- Operating instructions manual (24 pages) ,
- Operating instructions manual (16 pages) ,
- Operating instructions manual (36 pages)
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SWF-BR100
Flow of subwoofer internal analysis: MAIN board
The voltages of pins of the each power IC on the MAIN
board is the following value.
MAIN board:
CN104 pin 1, 2, 3 : 32 V
(for power amplifier (IC104) power supply)
IC109 pin 4 : 12 V
(for power amplifier (IC104) power supply)
IC108 pin 5 : 3.3 V
(for stream processor (IC105), system controller
(IC111), RF modulator (RF100) power supply)
IC106 pin 3 : 1.8 V
(for stream processor (IC105) power supply)
Yes
Check the voltage of each parts
of MAIN board based on
schematics.
Replace the power amplifier (IC104) on the MAIN board.
Replace the RF modulator (RF100).
Replace the stream processor (IC105) on the MAIN board.
Replace the system controller (IC111) on the MAIN board.
Replace the MAIN board.
Note:
4
No
Other defect are Speaker unit, LED board, Wooden box, Harness etc.
Replace the each power IC
on the MAIN board.
Repair or replace the harness
and connectors (CN104) on
the MAIN board.
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