Sony SS-V225 Panduan Servis - Halaman 3
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Halaman Cetak
Circuit Boards Location
SA-WMS225
POWER IC board
POWER SW board
LED board
CONTROL board
• IC Block Diagrams
– MAIN Board –
IC302
OVER LOAD DET
MAIN board
1
2
– POWER IC Board –
IC401 TDA7294
TRANSCONDACTANCE
1 2
3
3
3
PC1237HA
V
CC
ON
F/F
MUTE
OFFSET DET
LATCH/
AUTORESET
AC OFF
DET
3
4
5
6
7
8
THERMAL
BIPOLAR
SHUTDOWN
INPUT STAGE
MOS GAIN &
MOS
SHORT
–
LEVEL SHIFTING
OUTPUT
CIRCUIT
+
STAGE
STAGE
PROTECTION
STANDBY/
MUTE
BOOST-
STRAP
4
5
6
7
8 9
10
11
12
13
14 15
SA-VE225/WMS225/SS-CN225/V225