Printed Wiring Board - Mic Board (Gpx88) - Sony HCD-GPX33 Service Manual

6-20. PRINTED WIRING BOARD - MIC Board (GPX88) -

1 2 3
A
B
MIC BOARD
(GPX88)
C
JL2052
Q2050
JL2055
JR2000
JR
C2052
D
JL2058
C2053
R2054
R2055
JL2059
E
JL2050
C
JL2051
MB BOARD
CN150 JL2053
(Page 28)
F
6-21. SCHEMATIC DIAGRAM - MIC Board (GPX88) -
1 2 3
A
MIC BOARD
(GPX88)
B
C
NO2050
6P
JL2050
MB BOARD
A+9V
JL2051
D
MIC GND
(8/9)
JL2052
A
MIC SIGNAL
CN150
JL2053
(Page 37)
MIC DETECT
HCD-GPX33/GPX55/GPX77/GPX88
• See page 27 for Circuit Boards Location.
4 5 6
J2050
MIC
RV2050
MIC LEVEL
MIN
JL2073
R2060
JL2074
R2056
E
C2073
C2051
R2067
JL2057
JL2070
R2051 JL2060
R2066
JL2075
R2064
C2070
C2069
JL2064
JL2061
JL2062
C2054
JL2069
JL2065
C2061
C2065 12
(12)
1-887-481-
4 5 6
C2054
R2055
2.2 50V
R2051 100
D2050
DA2J10100L 1M
4.6
JL2058
Q2050
4.2
JL2054 LSAR523UBFS8TL
C2056
R2050 MIC DRIVER
R2054
68p
1M 0
100k
JL2062
JL2077
R2052
4.6
470 R2059
100k
JL2056 0
R2053
R2056
220k
3.3k
JL2057
S
JL2060
Q2051
RHK005N03T146
MIC DRIVER
• : Uses unleaded solder.
7 8 9 10
MAX
JL2067
C2074
JL2076
(CHASSIS)
7 8 9 10
IC2050
BA4558F
IC2050
MIC AMP
JL2065
9 4.6
VCC OUT A
R2063 C2066
JL2069
JL2063 4.6 4.6 33k 1000p
OUT B -IN A
JL2064 R2065
4.6
4.6 1k
-IN B +IN A
JL2068
4.6
+IN B GND
C2061 0.1
C2059
JL2067
R2062 10k
680p R2061
10k
JL2066
C2065 220 10V
R2060 C2062 C2063 0.1
10k 0.1
RV2050 MIC LEVEL
50k
MIN MAX
C2060 220 10V
43 43
11 12 13
11 12
JL2072
C2071 2.2 50V
JL2073
J2050
JL2070 JL2071
JL2074 JL2075
MIC
R2066
C2070
1k
2.2
50V
R2067 C2073
JL2076
10k 1000p ET2050 (CHASSIS)
D2051
BAV99-215
HCD-GPX33/GPX55/GPX77/GPX88
14 15 16