Read Sony HCD-EC55 / HCD-EC77 / HCD-GX99 / MHC-EC55 / MHC-EC77 / MHC-GX99 Service Manual online
50
HCD-EC55/EC77/GX99
IC101 STK433-060 (EC55)/STK433-070 (EC77: EXCEPT US, CND)
IC102 STK433-090-E (EC77: US, CND/GX99)
IC102 STK433-090-E (EC77: US, CND/GX99)
– HI-AMP Board –
SUB
Bias Circuit
Pre Driver
CH1
Pre Driver
CH2
3
2
1
4
6
5
8
7
13
10
11 12
9
14
15
-PRE
-VCC
+VCC
LO+
LO-
RO+
RO-
+PRE
SUB
GND
LI+
LI-
ST-BY
RI-
RI+
IC101 STK433-070 (EC77: EXCEPT US, CND)
IC102 STK433-090-E (EC77: US, CND/GX99)
IC102 STK433-090-E (EC77: US, CND/GX99)
– LOW-AMP Board (EC77/GX99) –
SUB
Bias Circuit
Pre Driver
CH1
Pre Driver
CH2
3
2
1
4
6
5
8
7
13
10
11 12
9
14
15
-PRE
-VCC
+VCC
LO+
LO-
RO+
RO-
+PRE
SUB
GND
LI+
LI-
ST-BY
RI-
RI+
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