Panasonic SA-AK770PL Service Manual page 92

SA-AK770PL / SA-AK770GCP
18.2. (B) Main Circuit
1 2 3
SCHEMATIC DIAGRAM - 2
A
MAIN CIRCUIT
JK2801
L2400
1
G0C101JA0052
2
C2083 C2095 R2083 C2081
1000P 100P
AUX 1 5.6K
C2096
C2082
C2084
B 1
1000P 100P
3
C2092
R2084
1000P
5.6K
4
C2091
1000P
Q2011,Q2012
B1GBCFJJ0051
DECK MOTOR SWITCH
Q2011 Q2012
CN2011
PL 1
MOTOR_H 2
C
MO_GND 3
DECK_AD2 4
MOTOR_12V 5
DECK_AD1 6
+9V 7
R2001 3.3K
PBL 8
TO
PBR
DECK CIRCUIT 9
A_GND
10
(CN1305) IN
A_GND 11
SCHEMATIC R2002 3.3K
RECIN_L 12
DIAGRAM - 9
RECIN_R 13
RECIN_H
14
BP 15
DMT 16
D
DVREF 17
VREF_GND
18
DGND 19
NC 20
PHOTO 21
K2031
0
CN3601*
R2121
GND 10
4.7K
VCC 9
E DET 8
RCH 7
TO TUNER PACK
STEREO 6
ENG06836QRF
LCH 5
4
TUNED
SPA 3
SCL 2
R2221
PORT_SELECT 1
4.7K
C3117
0.01
F
C2041 C2042
CN2801 R2043
R2041
1000P
1000P
3.3K
22
LOUT 1
AGND 2
R2042 3.3K
ROUT 3
+3.3V
4
SRDATA(ST_IN) 5
LRCLK(ST_REQ) 6
BLCK(ST_CLK) 7
TX 8
TO
MCLK
9
CD SERVO
MDATA 10
CIRCUIT
MLD 11
G (CN7002) IN
STAT 12
SCHEMATIC
BLKCK
13
DIAGRAM - 1
RST 14
+3.3V 15
LD SW 16
DGND
17
REST SW 18
R2046 3.3K
LOADING 19
CD OPEN SW 20
PGND
21
7.5V 22
1
L2051
G0C101JA0052
H
4 5 6
: + B SIGNAL LINE : - B SIGNAL LINE :AUX/MIC/MUSIC PORT SIGNAL LINE
R2081
6.8K
R2082
6.8K
DECK_PL
DECK_MTR
DECK_AN6
MOTOR_12V
DECK_AN7
+9V
R2003 C2007
5.6K 100P
R2004 C2008
5.6K 100P
REC_L
REC_R_USB
REC_R
REC_L_USB
DECK_REC
DVREF+
REC_R
DGND
REC_L
PHOTO
AGND
+9V
TU_STEREO
MIC
TU_CLK
DET
TU_SDA
TU_TUNED
R2044
4.7K 4.7K
D+3.3V
JUP_DAT0
JUP_LRCK
JUP_BCLK
CD_MCLK
CD_MDATA
CD_MLD
CD_STAT
CD_BLKCK
CD_RST
CD_RESET_SW
CD_LOADING
CD_OPEN_SW
+7.5V
7 8 9
:MAIN SIGNAL LINE : CD SIGNAL LINE : FM/AM SIGNAL LINE
C2005 1
C2025 1
K3701
0
C2045
1
IC2803
C1AB00002885
39 32 31 29 28 27
38 37 36 35 34 33 30
ASP IC
C2065 1 C2301
40 NC 26
C2302
41 NC NC 25
82k
C2085 1 R2301 C2303
42 24
NC
C2304
43 NC [39]NC [27]NC NC 23
C2105 50V4.7
D_PORTL [40]CD_L
44 LOUT 22
[42]MUSIC.P_L
45 VREF VCC 21
C2172 IC2803
46 IN6 SCL 20
50V4.7
D_PORTR SDA
47 19
C2106
48 NC [50]MUSIC.P_R [13]NC GND 18
50V4.7
[52]CD_R [14]NC
49 NC ROUT 17
[15]NC C2305 50V3.3
C2086 1
50 16
[16]NC
51 NC 15
C2066 1 R2302
52 14
47k
1 2 3 4 5 6 7 8 9 10 11 12 13
1
C2046
R2303
C2026 1 22k
C2006 1
R2305
22k R2304
10k
C2313
C2308
0.027
1
K3702
0
C3702
50V1
R3704 27k
R3703 27k
C3701
R3701
1.2k 50V1
+9V
C2129 R2133
50V1 22K
R2137
27K
C2120
R2127 C2135
C2139
0.01
22K 47P
C2119
6.3V100
R2123
12K
R2125
C2123 5
6 7 8
18K
1
IC2121
D2143
D2144
B0BC2R4A0006
B0BC2R4A0006
D2141 D2142
4 3 2 1
MA2J11100L MA2J11100L
R2143
0 C2136 C2140
R2126
47P 10P
18K
IC2121
R2134 R2138
22K 27K
C0ABBB000230
R2124
OP-AMP IC 12K
C2130
50V1
TO MAIN SECTION (3/4)
92
10 11 12 13
: TAPE PLAYBACK SIGNAL LINE : TAPE RECORD SIGNAL LINE
Q2311-Q2312
B1ABGC000005
C2311 R2311 C2315
470 MUTING SWITCH 1
1
Q2311
R2315
50V3.3
15k R2313
50V3.3
100k
50V3.3
A_GND
50V3.3
Q2312
R2316
R2314
15k
100k C2316
1
R2312
C2312
1 470
10P
D2503
R2131 R2503 B0ADCC000002
R2501
22k 3.9K
330k C2503
2.2 2
C2501 3
R2132
22k 1 1
Q2501
R2505
680
R2502 C2505
R2504
82k 16V10
100
Q2501
R2508
B1ABCF000176
1k
LEVEL METER
CONTROL SWITCH
TO MAIN SECTION (2/4)
1/4 2/4
SA-AK770PL/GCP MAIN CIRCUIT
3/4 4/4
14
:USB SIGNAL LINE
1
2
3
4
5
R2509
100
C2509
10V33
6