Panasonic SA-VK870GC / SA-VK870GCS / SA-VK870GS Service Manual ▷ View online
20.2. Main Circuit
COMPONENT
VIDEO OUT /
VIDEO OUT
VIDEO OUT /
VIDEO OUT
G
TO
MUSIC PORT
CIRCUIT (ZJ6801)
IN SCHEMATIC
DIAGRAM - 12
MUSIC PORT
CIRCUIT (ZJ6801)
IN SCHEMATIC
DIAGRAM - 12
J
TO
USB CIRCUIT
(JW2702*)
IN SCHEMATIC
DIAGRAM - 12
USB CIRCUIT
(JW2702*)
IN SCHEMATIC
DIAGRAM - 12
A
TO
DVD MODULE
CIRCUIT
(FP8101)
IN SCHEMATIC
DIAGRAM - 2
DVD MODULE
CIRCUIT
(FP8101)
IN SCHEMATIC
DIAGRAM - 2
1
50
TO MAIN
SECTION (2/6)
SECTION (2/6)
TO MAIN
SECTION (4/6)
SECTION (4/6)
B
MAIN CIRCUIT
SCHEMATIC DIAGRAM - 5
: DVD VIDEO SIGNAL LINE
: MAIN SIGNAL LINE
: AM / FM SIGNAL LINE
: AUX / MIC / MUSIC PORT SIGNAL LINE
: TAPE PLAYBACK SIGNAL LINE
: TAPE RECORD SIGNAL LINE
: DVD AUDIO SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE
SA-VK870GC/GCS/GS
MAIN CIRCUIT
1/6
2/6
4/6
5/6
3/6
6/6
P1
AA
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
6.3V1000
C2900
R2913
10K
0.01
C4006
6.3V220
C4014
1
R2057
2.2K
R2058
2.2K
C2034
1
C2035
R3000
2.2K
1
C3000
R3001
2.2K
1
C3001
R3002
5.6K
1
C3002
R3003
5.6K
1
C3003
R3004
5.6K
1
C3004
VIDEO_GND
3
1
2
Z2000
100P
C4048
1
2
CN2813
CN2812
1
2
2
1
3
JK2802
AUX IN
AUX IN
C2226
680P
C2126
680P
R2116
6.8K
AUX_L
100P
C2127
C2227
100P
R2216
6.8K
R2117
8.2K
AUX_R
AGND
R2217
8.2K
R
L
G3
10
G2
G1
8
9
4
5
6
1
3
2
7
GND
NC
VCC
TUN
LCH
STEREO
SEL
SDA
SCL
RCH
TN2802
TUNER PACK
ENG06839QRF
TUNER_L
TUNER_R
TUNER_GND
+9V
R2109
0
R2209
0
C2109
C2022
10V680
L2552
G0C220JA0055
SD
PLLDA
PLLCK
ST/DO
C2032
0.01
0.068
C2209
0.068
CROUT
R2902
1K
6.3V330
C2924
6.3V1000
C2922
C2917
100P
C2913
100P
C2914
100P
C2916
100P
CYOUT
CBOUT
C2923
6.3V330
10V22
C2920
L2900
G0C220JA0055
10V220
C2918
C2912
0.01
YIN
CHASIS_GND
PY
CR
C2907
1
C2908
1
C2909
0.1
C2910
0.1
CB
1
7
5
4
6
2
3
JK2001
CIN
C2911
0.01
C2919
6.3V1000
VOUT
26
25
27
28
17
18
20
22
24
23
21
19
8
9
7
16
15
14
13
10
11
12
3
1
2
30
32
31
4
5
6
29
C9ZB00000461
IC2900
L2003
J0JBC0000015
L2001
J0JBC0000015
R2906
75
R2905
75
L2004
J0JBC0000015
R2903
75
L2005
J0JBC0000015
R2904
75
SDCOUT
COUT
VOUT
GND2
YOUT
VSAG
S1
VCC1
VIDEO BUFFER
CVIN
S2
CIN
MUTE1
GND2
GND2
CBOUT
GND2
CBSAG
CRSAG
CROUT
CYOUT
CYSAG
GND
CBIN
VCC2
CRIN
MUTE2
YIN
SEL
BIAS
CYIN
YSAG
SEL
CHASSIS GND
PR(RED)
Y(GREEN)
PB(BLUE)
[VIDEO OUT]
3300P
C2803
DVD_CMD
INNER_SW
Q2912
B1GBCFJN0033
6
7
5
9
47
44
39
40
35
31
27
24
21
20
22
16
15
18
17
11
13
12
12
10
14
19
23
26
25
30
28
29
34
32
33
38
36
37
43
41
42
46
45
49
48
8
1
3
4
2
50
CN2801
C2801
1
YIN
CIN
CB
PY
BE_SUBW
CR
DVD_STAT
DVD_CLK
OPEN_SW
DVD_MUTE
INVERTER
M+9V_BE
2.2K
R2046
2.2K
R2047
Q2004
2SD0601AHL
R2048
20K
16V10
C2029
16V10
C2028
SWITCH
SWITCH
LDIN
B1ADCE000012
Q2005
PCONT
1K
R2001
TRAY_CCW_L
TRAY_CW_H
3
1
2
4
5
IC2002
C0CBCBC00140
MIX_L
MIX_R
FRONT_L
FRONT_R
SURR_R
SURR_L
CENTER
VGND
CB/PB/B
PY/Y/G
VGND
ADACGND
SR
NC
ON/OFF
D+5V
DGND
SUBW
ARCH
D+5V
M+9V
MGND
DGND
DGND
ALCH
DGND
D+2.7V
D+2.7V
D+2.7V
D+5V
D+5V
CENTER
VOUT
REGULATOR
VIN
FL
ADACGND
D+5V
VGND
MIXL
ADAC5V
ADAC5V
C
MIXR
ADACGND
SL
FR
VSS
ADACGND
MGND
M+9V
ZFLAG
ZFLAG
CMD
LDIN
CECIN
NSW6V
CECOUT
OPEN_SW
A.DIGITAL
STATUS
DSPCLK
INNER_SW
Y
VGND
CR/PR/R
VGND
3300P
C2802
SA-VK870GC / SA-VK870GCS / SA-VK870GS
109
FOR SOFTWARE
TO MAIN
SECTION (3/6)
SECTION (3/6)
TO MAIN
SECTION (1/6)
SECTION (1/6)
TO MAIN
SECTION (5/6)
SECTION (5/6)
B
MAIN CIRCUIT
SCHEMATIC DIAGRAM - 6
: DVD VIDEO SIGNAL LINE
: MAIN SIGNAL LINE
: AM / FM SIGNAL LINE
: AUX / MIC / MUSIC PORT SIGNAL LINE
: TAPE PLAYBACK SIGNAL LINE
: TAPE RECORD SIGNAL LINE
: DVD AUDIO SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE
SA-VK870GC/GCS/GS
MAIN CIRCUIT
1/6
2/6
4/6
5/6
3/6
6/6
P1
P1
15
16
17
18
19
20
21
22
23
24
25
26
27
28
BUSY
VDD
CLK
RESET
CNVSS
TXD
RXD
5
6
1
3
4
2
8
7
CN2811
RESET
EFM
CLK
CLK
VCC
BUSY
CNVSS
TXD
RXD
220
R2824
BASS_JOG2
BASS_JOG1
R2878
4.7K
(NOT SUPPLIED)
EEPROM
330P
C2833
R2834
1K
R2831
1K
R2830
1K
R2829
1K
R2890
0
R2978 1.8K
DVD_STAT
DVD_CMD
R2828
R2887
R2880
47K
47K
R2891
DVD_CLK
R2889
1K
1K
R2888
1K
DC_DET
PCONT
MUTE_S_C
MUTE_F
HP_MUTE
MODE_DA
B1ACCF000094
Q2700
C2867
100P
VREF+
R2702 1.8K
B0ACCE000003
D2700
R2703 1.8K
B1ACCF000094
Q2702
R2701
1.8K
C2841
18P
C2840
18P
C2838
68P
C2834
68P
C2016
220P
C2015
220P
C2025
220P
C2024
220P
1.8K
R2700
R2817
1
00K
100K
100K
R2818
100P
C2866
C2868
100P
22K
R2877
22K
R2876
C2832
330P
C2831
0.022
VREF+
6
7
5
2
4
3
8
1
IC2802
RXD
TXD
C2620
0.1
Q2605
B1GBCFLL0037
C2600
50V2.2
C2616
0.01
D2601
RESET
POWER CONTROL
LED DRIVE
LED DRIVE CONTROL
POWER SUPPLY
POWER SUPPLY
B0ACCK000005
1K
R4024
B1ADCF000001
Q4006
Q4005
B1ABCF000176
C4038
50V1
C4039
16V1000
B1GBCFJN0033
Q2701
680
R4027
R4028
47K
6.3V100
C4040
L2600
G0C3R3JA0027
B0ACCE000003
D2603
B0ACCE000003
D2602
1M
R2886
R2881
220
VDD
VREF-
3
1
2
X2802
H2B100500004
22K
R2620
R2882
10M
H0A327200115
X2801
R2883
0
C4041
0.1
R4026
10K
D2900
B0ACCK000005
PCONT
SYS6V
VREF+
DVREF
CLK
BUSY
R4025 220K
R2812
100
R2802
100
R2813
10
R2803
10K
RMT
R2801
10K
R2804
47K
R2805
47K
R2807
10K
R2806
10K
C2820
100P
SW5V
C2821
100P
C2819
100P
100P
C2818
R2895
100
DVD_MUTE
DVD_PCON
R2894
1K
CNVSS
ST/DO
SD
100
R2835
100
R2837
100
R2836
R2839
100
R2866
47K
R2865
47K
R2864
47K
100
R2838
100
R2820
47K
R2879
MPORT_SW
4.7K
R2846
HP_SW
47K
R2843
47K
R2869
R2870
47K
HOME_SW
TRAY_CCW_L
OPEN
TRAY_CW_H
47K
R2871
R2873
47K
R2872
47K
R2847
22K
100P
C2861
C2862
100P
C2860
100P
AM_BP
100
R2863
1K
R2848
1K
R2849
DECK_EJECT
LO_F
LO_R
TOP
FL_CLK
FL_CS
FL_DOUT
MOTOR_L
HBASS_SW1
NC
DMT
VDD
REC
DVREF
100P
C2863
C2816
100P
C2865
100P
47K
R2854
R2874
DECK_AD1
KEY1
100
R2860
100P
C2822
100P
C2817
100
R2844
VREF+
R2858
100
INNER_SW
LEVEL SHIFTER
KEY3
UD_SENSOR
100
R2859
KEY2
B1GBCFJJ0051
Q2800
OPEN_SW
R2875
10K
10K...GC/GS
3.3K...GCS
3.3K...GCS
100P
C2813
100P
C2814
MODE
100P
C2812
LM_L
100
R2852
R2840
0
100
R2821
100
R2851
100
R2850
R2884
100
100P
C2815
V_JOG_A
PHOTO
VDD
VDD
F_HOP
RESET
ASP_CLK
ASP_DATA
VOL_LED
PL_L
220
R2823
220
R2587
220
R2586
100
R2841
100
R2861
100
R2842
R2862
1
00
SYNC
HBASS_LED
3
4
2
5
98
94
95
92
91
93
97
96
1
100
99
80
78
76
77
79
87
86
88
89
82
84
83
81
85
90
16
14 15
17
11
13
12
69
67
65 64
66
68
70
51
49
45
47
46
41
44
42
43
48
50
30
39
37
35
32
31
34
33
36
38
40
22 23
20 21
26
28
27
24 25
18 19
53
55
57
62
60 59
61
63
58
56
54
29
52
75
73
71
72
74
9
7
6
8
10
IC2801
RFKWVK870GC
PLLDA
PLLCK
DGND
EE_CLK
VCC
EE_CS
EE_DO
NC
EE_DAT
NC
GND
STANDBY_LED
CLOSE
DVD_CLK
NC
DVD_STA
[32] REG2/EFP_RXD1
[33] REG3/EFP_SCLK
[33] REG3/EFP_SCLK
MICRO-PROCESSOR
EFP_BUSY
DVD_CMD
MOD_DA
NC
EE_CS/EFP/EPM
XC_IN
XC_OUT
VSS
KA_CLK
NC
NC
PLL_DATA
PLL_CLK
NC
KA_CS
SD
RMT
NMI
ST/DO
SYNC
ASP_CLK
ASP_DATA
VCC
XIN
XOUT
[31] REG1/EFP_TXD1
EFP_RESET/RESET
VOL_JOG
MK_IN2
CNVSS/EFP_CNVSS
KEY1
MK_IN1
[99] AVCC
AVSS
KEY3
KEY2
WIDE1
NC
LM
NC
MK_IN2
[100] NC
VREF
F_HOP
DVD_MUTE
BYTE
DVD_PCONT
EE_CLK
EE_DATA
AM_BP
DCDET2
DC_DET1
MUTE_S_C
MUTE_F
HP_MUTE
PCONT/EFP_CE
VSS
DMT
NC
NC
PLUNGER
H.BASS
REC
VCC
EJECT
[53] HBASS LED
VOL LED
[52] BASS_2
[51] BASS_1
MOTOR
MPORT_SW
HP_SW
NC
NC
ECHO_2
ECHO_1
INNER_SW
DVD_REG
FL_CS
FL_DATA
LO_F
TOP_SWITCH
CLOSE
LO_R
MODE
OPEN
UD_SENSOR
ECHO_3
ECHO_MUTE
[81] HOME_CR
[82] TRAY_CW_H
[83] TRAY_CCW_L
[82] TRAY_CW_H
[83] TRAY_CCW_L
FL_CLK
UNLOAD_SW
ECHO_2
ECHO_MUTE
ECHO_3
ECHO_1
DC_DET2
100
R2825
SA-VK870GC / SA-VK870GCS / SA-VK870GS
110
TO FAN
K
TO
DECK CIRCUIT
(CN1305)
IN SCHEMATIC
DIAGRAM - 13
DECK CIRCUIT
(CN1305)
IN SCHEMATIC
DIAGRAM - 13
TO MAIN
SECTION (2/6)
SECTION (2/6)
TO MAIN
SECTION (6/6)
SECTION (6/6)
B
MAIN CIRCUIT
SCHEMATIC DIAGRAM - 7
: DVD VIDEO SIGNAL LINE
: MAIN SIGNAL LINE
: AM / FM SIGNAL LINE
: AUX / MIC / MUSIC PORT SIGNAL LINE
: TAPE PLAYBACK SIGNAL LINE
: TAPE RECORD SIGNAL LINE
: DVD AUDIO SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE
SA-VK870GC/GCS/GS
MAIN CIRCUIT
1/6
2/6
4/6
5/6
3/6
6/6
P1
P1
29
30
31
32
33
34
35
36
37
38
39
40
41
42
A
B
D
E
F
H
G
C
AGND
DGND
C6924
0.068
C6926
0.22
R6921
39
15K
R6943
C6919
1500P
C6918 0.068
R6925
15K
C6937
1
15K
R6941
C6923
0.01
R6942
15K
6800P
C6920
R6924
15K
R6926
15K
R6961
10K
R6922
39
R6923
12K
D6930
B0BC5R000009
C6931
10V47
C6932
10V47
C6922
0.01
0.1
C6940
C6921
0.1
C6925
0.22
R6940
18K
10K
R6944
C6927 1000P
0
.015
C6928
10K
R6945
C6939
1
MIC_OUT
R6927 4.7K
C6933
1
C6936
6.3V220
C6934
6.3V220
C6935
10V47
10V47
MIC_IN
+7V
R6901
0
7
5
6
1
2
4
3
10
12
14
15
16
13
11
8
9
IC6931
LPF2_OUT
LPF1_IN
ECHO PROCESSOR
LPF1_OUT
VCC
C1AB00002773
REF
NC
OP2_OUT
LPF2_IN
CLK
OP1_IN
OP1_OUT
OP2_IN
D_GND
CC0
CC1
A_GND
ECHO_2
ECHO_MUTE
ECHO_3
ECHO_1
R6916
4.7K
R6918
4.7K
R6920
4.7K
Q6907
B1GBCFJJ0051
MUTING
R6915
Q6909
B1GBCFJJ0051
Q6906
B1GBCFJJ0051
Q6908
B1GBCFJJ0051
4.7K
R6919
1K
R6917
2.7K
ECHO CONTROL
ECHO CONTROL
ECHO CONTROL
MIC_GND
MGND
16V47
C2945
25V47
C2021
R2945
1
0K
DC18V
M+9V_BE
D2942
MAZ81200ML
Q2944
B1BACD000018
REGULATOR
R2943
330
D2943
MA2J11100L
1
2
CN2810
0.1
C2940
6.3V100
C2947
R2947
27
R2944 4.7K
B0EAKM000117
D2948
POWER SUPPLY
POWER CONTROL
B0JAME000114
D2945
C2949
35V47
35V47
R2946
56K
R2956
10K
100P
C2944
100
R2948
3
1
2
D2946
B0ADCJ000020
0
R2941
C2948
6.3V220
R2954
10K
C2941
16V33
B1ACKD000006
Q2942
B1ABCF000176
Q2948
R2949
DC DETECT
DC DETECT
47K
5.6K
R2955
Q2943
B1ABCF000176
R2952
47K
R2953
820K
D2944
B0BC5R600003
B1ABCF000176
Q2949
DC_DET
FAN
+VE
-VE
R2337
470K
C2334
1
R2331
0
R2339
1K
R2439
1K
C2331
1
R2333
0
R2338
1K
R2591
330K
3
1
2
D2332
B0ADCC000002
R2332
39K
C2333
16V10
R2335
1K
PBR
PL_L
MOTOR_L
PBL
REC
INVERTER
INVERTER
7
9
10
15
18
19
16
17
12
11
14
13
8
4
1
3
2
6
5
21
20
CN2803
B1GBCFJJ0051
Q2011
B1GBCFJJ0051
Q2012
DECK_AD1
REC_RIN
REC_LIN
DVREF
PHOTO
LM_L
DMT
DGND
BP
VREF-
DVREF
NC
REC_LIN
DMT
REC_H
REC_RIN
AGND
LED_GND
PBR
PBL
AGND
+9V
+9V
PL
MOTOR_H
MOTOR_GND
DECK_AD1
DECK_AD2
MOTOR_10V
PHOTO
K2111
K2211
0
0
SA-VK870GC / SA-VK870GCS / SA-VK870GS
111
N
TO
SMPS CIRCUIT
(CN5802)
IN SCHEMATIC
DIAGRAM - 16
SMPS CIRCUIT
(CN5802)
IN SCHEMATIC
DIAGRAM - 16
TO MAIN
SECTION (5/6)
SECTION (5/6)
TO MAIN
SECTION (1/6)
SECTION (1/6)
B
MAIN CIRCUIT
SCHEMATIC DIAGRAM - 8
: DVD VIDEO SIGNAL LINE
: MAIN SIGNAL LINE
: AM / FM SIGNAL LINE
: AUX / MIC / MUSIC PORT SIGNAL LINE
: TAPE PLAYBACK SIGNAL LINE
: TAPE RECORD SIGNAL LINE
: DVD AUDIO SIGNAL LINE
: +B SIGNAL LINE
: -B SIGNAL LINE
SA-VK870GC/GCS/GS
MAIN CIRCUIT
1/6
2/6
4/6
5/6
3/6
6/6
AA
P1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
I
J
L
M
N
P
O
K
C4025
0.01
33
R4007
DC18V
C4001 100P
R4008
DC DETECT
4.7K
10K
R4000
C4007
25V1000
0.01
C4000
C4003
1
L4002
G0A200D00002
16V100
C4009
3
1
2
DW2710
B0ADCJ000020
L4005
G0A200D00002
R4005
180
0.01
C4004
DZ4005
B0BC3R700004
R4006
1.5
R4004
1.5
6.3V220
C4010
L4003
G0A200D00002
2.7K
R4002
1K
R4003
B0JCPD000025
DZ4006
C4008
6.3V820
1.5K
R4001
C4002
0.01
L4001
G0A101ZA0028
Q4001
B1GBCFJN0033
MGND
CHASIS_GND
DVD_PCON
DC_DET
C4026
16V220
G0A101ZA0028
L4006
0.01
C4029
C4030 25V220
C4028
0.01
1K
R4016
D4003
B0JCPD000025
R4014
2.2K
R4015
6.8K
4.7K
R2930
16V680
C4027
L4000
G0A200D00002
C4016 16V100
R4019 3.9K
2.2K
R4031
R4009
1K
C4047
16V22
2SD0592ARA
Q4007
-13V
+9V
B0BC01000014
D4004
0.01
C4046
15K
R4037
Q2810
B1AAKD000012
R4036
39K
R4012
SW+5V REGULATOR
150
C4020
16V47
3
1
2
DW2810
B0ADCJ000020
C4021
16V47
C4022
0.01
SW5V
DC_DET
B1GBCFJN0033
QR4004
M+9V_BE
DC DETECT
B0ACCK000005
D4005
R4029
39
470
R4030
3.9
R4032
+7V REGULATOR
+9V REGULATOR
-7V REGULATOR
POWER CONTROL
R4018
47
R4017
47
C4017
10V33
R4011
1K
R4033
560
R4034
2.7K
DZ2810
B0BC5R600003
C4019
0.01
0.01
C4018
0.01
C4015
R4020 2.7K
C4023
16V100
Q4003
B1ADCF000001
B1BACD000018
Q4004
R2356
0
MIX_GND
R5240
0
HBASS_GND
R2355
0
HP_GND
+7V
B1BCCG000002
Q4002
B1BACG000023
Q5100
C4011
16V100
L4004
D+2.7V REGULATOR
G0A200D00002
Q4000
B1BACD000018
M+9V REGULATOR
0.01
C4005
6.3V220
C4012
D5109
B0BC010A0209
C5102 16V100
220
R5102
-7V
D+5V
ADAC5V
VIDEO_GND
D+2.7V
TUNER_GND
DC_GND
DC_GND
AGND
DGND
FL_GND
FL_GND
C4044
PSAVE CONTROL
3900P
G0A220GA0026
L2910
FP2901
C4045
35V33
5.6K
R4023
D2901
B0BC035A0007
Q2900
B1BABK000001
B0EAMM000057
SWITCHING TRANSFORMER
D2903
D4000
B0EAMM000057
35V33
C4042
D4001
MAZ82400HL
C4043
16V100
R4022
47
D4002
B0JAME000029
FL2
5
3
4
8
7
6
2
1
9
T2900
G4D1A0000117
FL1
-VP
R4021
47K
0.4
SYS6V
DC_DET
SYNC
AM_BP
PCONT
6
8
9
7
2
1
4
5
3
10
11
CN2701
DC_DET
SYNC
SYS6V
SYS_GND
DGND
PCONT
AM_BP
DC18V
DC18V
DC_GND
-13V
-13V
DC_GND
DC18V
DC_GND
4
2
1
3
5
C0DAAMH00012
IC4000
SWITCHING REGULATOR
GND
INV
STBY
OUT
VCC
SWITCHING REGULATOR
4
2
1
3
5
C0DAAYY00042
IC4001
STBY
INV
OUT
GND
VCC
SA-VK870GC / SA-VK870GCS / SA-VK870GS
112
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