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HCD-M80
IC506 BU2507FV-E2
14
13
12
10BIT R-2R
D/A CONVERTER
CH1
10BIT LATCH
10BIT LATCH
10BIT LATCH
CH2
CH3
10BIT R-2R
10BIT R-2R
D/A CONVERTER
D/A CONVERTER
1
2
– MAIN Board –
IC101, 201 TDA7296
BIPOLAR
TRANSCONDACTANCE
INPUT STAGE
MOS GAIN &
–
LEVEL SHIFTING
+
BOOST-
1 2
3
4
5
42
11
10
14BIT
SHIFT REGISTER
D0 – D9 D10 – D13
ADDRESS
DECODER
10BIT LATCH
CH4
10BIT R-2R
D/A CONVERTER
3
4
5
THERMAL
SHUTDOWN
MOS
SHORT
OUTPUT
CIRCUIT
STAGE
STAGE
PROTECTION
STANDBY/
MUTE
STRAP
6
7
8 9
10
11
12
9
8
10BIT R-2R
D/A CONVERTER
10BIT LATCH
CH6
10BIT LATCH
CH5
10BIT R-2R
D/A CONVERTER
6
7
13
14 15
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