Sony HCD-M80 Service Manual page 42

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