Sony HCD-GPX5G Service Manual page 51

• IC Block Diagrams
IC1405 NJM2903V (TE2) (4CH DAMP BOARD (2/3))
IC1410, IC1411 BA4580RF-E2 (4CH DAMP BOARD (2/3))
IC702 NJM2903V (TE2) (MAIN BOARD (4/4))
7 6 5
8
–
+
2 3 4
1
IC1406, IC1407, IC1408, IC1409 IRS2092STRPBF (4CH DAMP BOARD)
1
VAA
VAA+VSS
GND 2
+
OTA
IN- 3 -
PWM MODULATOR
COMP 4
UV
DETECT
5
CSD
CHARGE/
DISCHARGE
PROTECTION
CONTROL
6
VSS
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FLOATING INPUT
CLICK NOISE
ELLIMINATION
+
2
COMP
-
HV
LEVEL
HV
SHIFT
FLOATING HIGH SIDE
LEVEL
SHIFT
HV
LEVEL
SHIFT
HV
LEVEL
SHIFT
HCD-GPX5G/GPX7G/GPX8G
UV
DETECT
UV
HIGH
Q
SIDE
CS
HV
LEVEL
SHIFT
5V REG
UV
DETECT
DEAD TIME
SD DT
LOW SIDE CS
16 CSH
15 VB
14 HO
13 VS
12
VCC
11 LO
10 COM
DT
9
8 OCSET
VREF
7
51