Main Circuit - Panasonic SA-PT470EB Service Manual

17.2. Main Circuit

1 2 3
SCHEMATIC DIAGRAM - 6
A
B
MAIN CIRCUIT
B
C
D
C2949
CN2002*
0.1
TUNERGND 10
T+9V 9
E
RDS DETECT 8
R2260
TUNER RCH 7
TUNER PACK
TUNER DO/ST 6
J3CBBC000002 R2160
TUNER LCH 5
TUNER SD 4
TUNER DI 3
TUNER CLK 2
PORT_SEL 1
F
CHASSIS
CN6003
1
ACC_PWR 14
DO_UART_OUT/TX 13
DO_UART_IN/RX 12
DOCK5V_GND 11
I DOCK5V_GND 10
TO
IPOD ACC 9
iPod CIRCUIT
DOCK5V 8
G
(CN1002)
DOCK_L OUT 7
IN SCHEMATIC
DPORT_AGND 6
DIAGRAM - 16
DOCK_R OUT 5
IPOD DET 4
VGND 3
VIDEO 2
VGND 1
14
H
4 5 6
: +B SIGNAL LINE : CD/DVD AUDIO INPUT SIGNAL LINE
: -B SIGNAL LINE : iPod/TV/MIC/AUX AUDIO INPUT SIGNAL LINE
Q2103
B1GDCFGA0018
R2207
MUTING CONTROL
1K
TV_R
3 2 1
4 5 6
AGND
TV_L Q2104
B1HBECA00004
MUTING
AGND
TU+9V TU+9V
L2914
G0C390JA0055
RDS_DET
TUN-RCH
1K
RECOUT-L
TUN_DO
RECOUT-R
1K TUN-LCH
TUN_SD
TUN_DI
MIXL
TUN_CLK
MIXR
TV_L
TV_R
TUN-LCH
TUN-RCH
AGND
DOCK-LCH C2119 1 R2111
DOCK-RCH C2219 1 R2211
C2191 1 R2104
C2291 1 R2204
R2139
0
SCART_L
ACC_PWR
DO_UART_OUT SCART_R
R2239 0
DO_UART_IN
DVD-FL
DOCK5V_GND
DVD-FR
+7V
IPOD_ACC2
DOCK5V
DOCK_L_OUT
DPORT_AGND
DOCK_R_OUT
IPOD_DET
VIDEO
VGND
TO MAIN
SECTION (3/4)
7 8 9
: CD/DVD VIDEO INPUT SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
: iPod VIDEO INPUT SIGNAL LINE : VIDEO OUTPUT SIGNAL LINE
C2194
4.7
R2175
R2131
R2173 27K
1.8K
1.8K
4 3
Q2203
B1GDCFGA0018
5 2
MUTING CONTROL
6 1
R2271
56K
Q2101
B1HBECA00004
MUTING
C2294
R2273 4.7
R2170
1K
27K
C2177
50V1
R2150 3.3K
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
C2290 1
100
C2190 1
99
98 AGND
97 MICIN
96 INL1 [MIX L] [100]RECOUTL
[99]RECOUTR
95 INR1 [MIX R]
94 INL2 [TV L]
93 INR2 [TV R]
92 INL3 [FM L]
IC2101
91 INR3 [FM R]
C1AB00002735
4.7K
90 INL4 [IPOD L]
AUDIO SIGNAL PROCESSOR
4.7K
89 INR4 [IPOD R]
0
88 FMPORTL
0
87 FMPORTR
C2017
[82]FLIN
0.1 86 RMPORTL
[81]FRIN
C2018 85 RMPORTR
16V47
84 AVCC
+7V
83 AVEE
82
81
C2019
-7V 16V47
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64
C2020
0.1
AGND
AGND
115
10 11 12
: FM SIGNAL LINE
D2752
C2751 R2705
MA2J11100L
1 1K
C2179
270P
C2178
100P
R2176
R2180
12K
10
R2174 R2178
39
3.9K
C2180
1000P
5 6 7 8
+VCC
IC2102
C0ABBB000230
HEADPHONE AMP
-VCC
4 3 2 1
R2274
R2278 39
3.9K C2279 270P R2280
R2276 10
C2278
100P
12K
-7V
R2216 1K
R2116 1K
K2201 0
K2101 0
TO MAIN
SECTION (2/4)
R2303 4.7K
18 19 20 21 22 23 24 25 26 27 28 29 30 C2303 C2302
0.12 0.033
R2301
31
12K
32
SLNFIN 33
SLVOLIN 34
[29]REARSLOUT C2301 4.7
SLSELOUT 35
[31]SLFIN
SRSELOUT 36
[32]SLVOLOUT
C2401 4.7
SRVOLIN 37
SRNFIN 38
R2401 12K
SRVOLOUT 39
C2403 0.12
SRFIN 40
R2403 4.7K
C2402
SROUT 41
0.033
REARSROUT 42
AGND 43
R2627 68K
OPOUT2 44 C2612
C2617
[48]SUBOUT 0.01 10K
R2611
0.12
OPIN2 45
C2923
[49]SUBC
R2612
OPOUT1 46
[50]AGC1
18K
OPIN1 47
C2610 0.33 C2611
48 0.1
C2609
49
0.22
R2609
3 2 1
50
4.7K
63 62 61 60 59 58 57 56 55 54 53 52 51
E2902
C2015 220P
C2016 220P
C2014 1
13 14
P1
R2182
10
4 3
5 2
6 1
Q2102
B1HBECA00004
MUTING
R2282
10
-7V
FROUT
FLOUT
SLOUT
COUT
DGND
SROUT
OPOUT2
0.01
1/4 2/4
SA-PT470EB/EF/EG
3/4 4/4
MAIN CIRCUIT