JVC HR-S6970AA, HR-S6970AG, HR-S6970AH, HR-S6970AJ Schematics
SCHEMATIC DIAGRAMS
VIDEO CASSETTE RECORDER
VIDEO CASSETTE RECORDER
200
HR-S6970AA,HR-S6970AG,
HR-S6970AH,HR-S6970AJ
CABLE/
SAT/DVD
VCR
TV
HR-S6970AA,HR-S6970AG,HR-S6970AH,HR-S6970AJ [V17S1]
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700(MECHANISM ASSEMBLY).
CD-ROM No.SML200412
(AA,AH mode)
(AG,AJ mode)
COPYRIGHT © 2004 Victor Company of Japan, Limited.
No.YD047SCH
2004/12
CHARTS AND DIAGRAMS
NOTES OF SCHEMATIC DIAGRAM
Safety precautions
The Components indentified by the symbol are
critical for safety. For continued safety, replace safety
critical components only with manufacturer's recommended parts.
1. Units of components on the schematic diagram
Unless otherwise specified.
1) All resistance values are in ohm. 1/6 W, 1/8 W (refer to
parts list).
Chip resistors are 1/16 W.
K: KΩ(1000Ω), M: MΩ (1000KΩ)
2) All capacitance values are in µF, (P: PF).
3) All inductance values are in µH, (m: mH).
4) All diodes are 1SS133, MA165 or 1N4148M (refer to parts
list).
Note: The Parts Number, value and rated voltage etc. in
the Schematic Diagram are for references only.
When replacing the parts, refer to the Parts List.
2. Indications of control voltage
AUX : Active at high.
AUX or AUX(L) : Active at low.
!
4. Voltage measurement
1) Regulator (DC/DC CONV) circuits
REC : Colour bar signal.
PB : Alignment tape (Colour bar).
— : Unmeasurable or unnecessary to measure.
2) Indication on schematic diagram
Voltage indications for REC and PB mode on the schematic diagram are as shown below.
REC mode
12 3
2.5
(5.0)
PB mode
1.8
PB and REC modes
(Voltage of PB and REC modes
are the same)
Note: If the voltages are not indicated on the schematic
diagram, refer to the voltage charts.
5. Signal path Symbols
The arrows indicate the signal path as follows.
NOTE : The arrow is DVC unique object.
Playback signal path
Playback and recording signal path
CIRCUIT BOARD NOTES
1. Foil and Component sides
1) Foil side (B side) :
Parts on the foil side seen from foil face (pattern face)
are indicated.
2) Component side (A side) :
Parts on the component side seen from component face
(parts face) indicated.
rts location are indicated by guide scale on the circuit board.
2. Parts location guides
Parts location are indicated by guide scale on the circuit board.
REF No.
IC101 B C 6 A
(A : Component side)
D : Discrete component)
B : Foil side
C : Chip component
Note: For general information in service manual, please
refer to the Service Manual of GENERAL INFORMATION Edition 4 No. 82054D (January 1994).
LOCATION
IC
Category : IC
Horizontal “A” zone
Vertical “6” zone
3. Interpreting Connector indications
1
2
Removable connector
3
1
2
Wire soldered directly on board
3
1
Non-removable Board connector
2
3
1
2
4
Board to Board
3
Connected pattern on board
The arrows indicate signal path
Note: For the destination of each signal and further line
connections that are cut off from the diagram,
refer to "BOARD INTERCONNECTIONS"
Recording signal path
(including E-E signal path)
Capstan servo path
Drum servo path
(Example)
R-Y
Playback R-Y signal path
Y
Recording Y signal path
6. Indication of the parts for adjustments
The parts for the adjustments are surrounded with the circle
as shown below.
7. Indication of the parts not mounted on the circuit board
“OPEN” is indicated by the parts not mounted on the circuit
board.
R216
OPEN
2-1 2-2
BOARD INTERCONNECTIONS
5
4
Page 2-21
SHEET 9
VIDEO/N.AUDIO Page 2-5 SHEET 1
SYSCON Page 2-7 SHEET 2
S-SUB Page 2-9 SHEET 3
FMA Page 2-11 SHEET 4
SW.REG Page 2-13 SHEET 5
TUNER Page 2-15 SHEET 6
FRONT Page 2-17 SHEET 7
TERMINAL Page 2-19 SHEET 8
3
Page 2-17
SHEET 7
2
1
p10673001a_rev0
A
BCDEFG
2-3 2-4
MAIN(VIDEO/N.AUDIO) SCHEMATIC DIAGRAM
5
2Fsc
TO FMA
SHEET 4
TO TUNER
SHEET 6
4
TO SW.REG
SHEET 5
TO FMA
SHEET 4
NA_PB
NA_REC
TU_AUDIO
SW12V
FMA_CH1
FMA_COM
FMA_CH2
SW5V
GND
GND
GND
MESECAM_DET
LP/EP_SHORT[H]
SP_SHORT[H]
C56
0.1
TP111
C55
150p
R26
R25
10k
1.2k
C54
0.01
C51
L9
10
µ
C52
15p
R24
220
B5
TP106
2.2
0.1
0.022
0.47
0.0047
C44
C46
C48
Q6
L2001
47
C2003
C2004
R2022
10k
D2001
R2023
10k
4.7
C49
C50
R37
0.01
15k
C47
R11
27k
X1
C43
C45
R12
1k
X2
47
0.1
3.3
C39
C41
R14
10k
L15
12u
0.01
C40
Q12
2SA1037AK/QR/
B7
1
C36
R18
R31
470
C38
0.01
C37
4p
C35
0.01
L7
C34
0.01
C33
10
Q4
2SA1037AK/QR/
B4
R17
680
L6
10
µ
VIDEO_ENV
D.FF
A.MUTE[H]
I2C_DATA
I2C_CLK
TO
SYSCON
SHEET 2
3
2
TO SYSCON
SHEET 2
TO SYSCON
SHEET 2
CN2001
CTL[+]
CTL[-]
CN2002
N.REC[H]
N.REC_ST[H]
CN1
K2003
K2004
C2051
330p 6.8k
R2052
R22 R21
2.2k 2.2k
R2053
C2052
0.082
10
L10
µ
Q7
2SC2412K/QRS/
Q8
2SC2412K/QRS/
2SD601A/QRS/
0.0047
12k
C2054C2055
0.02210
Q10
Q2051
2SC2412K/QRS/
Q9
Q2052
R2056
82
R2055
3.3
Q2054
R2057
47k
R2059
47k
R2058
18k
R2060
18k
Q2053
Q2003
Q2055
C63C64
0.010.01
T2051
C2053
R2054
0.1
C57
C61
47
0.1
C58
0.1
C59
0.1
C60
R2021
33k
C2005
4.7
R2015
300
R2017
4.7
18k
C2009
0.0012
Q2001
R2018
4.7k
R2019
4.7k
Q2002
C71
1
C62
0.01
R2014
C2006
0.012
C2007
K2002 C2013
C2016
22
K2001
C2008 C2010
R2016
C2011
C2012
39k
µ
10
L5
C31
47
C30
330p
R38
5.6M
C29
0.01
C26
10
390k
R2013
12k
0.0015
4.7
4.7
IC1
C16
0.01
D3
D4
L11
C68
C7
C11
1
C15
0.1
C8
C9
1
2.2
C12
1
C14
C10
47
C18
0.11
C19
0.1
R2004
R2007
R2005
R2003
18k
15k
100
12k
10k
R2010
R2008
4.7
C2001
R1
6.2k
L1
1
C4
10
C1
C2
C2002
L2
C3
47p
R4
6.8k
Q1
C6
150p
0.1 0.1
C5
R3
0.1
R2
1.5k
R5
C25
3.3
C24
0.1
0.1
C21
0.01
C20
0.1
R6
B1
C23
10
µ
L3
Q2
R7
C32
0.01
0.01
C27
KILLER_DET
R20
R33
1k
1.5k
B3
C73
0.01
R34
Q3
15k
PB_COLOR
Fsc
FROM_SUB_EMPH
TO_SUB_EMPH
V_TO_OSD
GND
2Fsc
V.PULSE
SB_GAIN
S_DET
V_TO_OSD
C.SYNC
TO
S-SUB
SHEET 3
TO
SYSCON
SHEET 2
1
GND
TU_VIDEO
VIDEO_IN
FRONT_V_IN
TO TERMINAL
SHEET 8
VHS[H]
Y_TO_AV
REC_COLOR
V_FROM_AV
TO S-SUB
SHEET 3
SYNC_OUT
Y_TO_SUB
p10670001a_rev0
SHEET 1
A
BCD EFG
2-5 2-6
MAIN(SYSCON) SCHEMATIC DIAGRAM
TO FMA
SHEET 4
5
VIDEO/N.AUDIO
4
3
2
1
TO
SHEET 1
TO SW.REG
SHEET 5
N.REC_ST[H]
N.REC[H]
VIDEO_ENV
V_TO_OSD
CN3001
V.PULSE
SB_GAIN
P.CTL[H]
C.SYNC
CTL[+]
A.FF
AL5V
D4001 R4016
2Fsc
S_DET
SW5V
GND
C3071
33
C3056
0.1
33
C4031
0
C3004
0.047
CP3001
!
JS3001
GND
M12V
GND
SW12V
AL5.8V
SW5V
48V
L4001
CP3002
!
!
10EDB20
10EDB20
CP4002
!
CP4001
!
D3001
D3005
D3004
L3001
R3252
15K
C3021
R3212
470k
R3218
4.7k
C3011
R3254
R3255
L3002
R3206
R3205
180
Q3002 Q3003
C3046
R3217
10k
0.047
C3022
CAT24WC08JI-X
D3002
D3003
µ
10
R3222
10k
47
R3253
10K
R3208R3210
R3211 R3209
120120
C3045
0.01
R3214
10k
R3213
330k
Q3005
2SD601A/QRS
18k 18k
R3220
100k
Q3004
2SD601A/QRS
PC3001PC3002
R3221
R3225
10k
10K
S3001
S3002
R3207
C3070
18k
C3008
R3215R3216
10k10k
IC3003
R3219
4.7k
C3013
0.01
C3012
R3237
100p
0.1
R4021
R4001
R4020
C4001
C4002
0.01
C4005
0.0022
TP4001
R4005
C4010
0.022
Q4001
L202
0
C209
47
R4007
C4003
C214
C201
C210
0.01
R205
R210 C207
Q202
2SA2412K/QRS/
R212
100
B202
470
R211
R209
C3047
B203
5.6k
1K
L201
R201
µ
22p
470
15
C202
C203
4.7
10k
1000p
2.2K
100 4.7
R207
1k
B201
Q201
2SA1037AK/QR/
L203
C205
L204
4.7
µ
150
C206
R208
0
C208
C213
00
0.01
C4015
0.001
R4003
560
C4004
22
C4006
47
R4006
C4007
C4008
1
0.056
C4009
R203R202
10K
D201
R214
470k
C204
680p
470K
R204
R3024
0
R3026
R3028
C3014
47
0.047
C3033
R4017
1k
1k
R4004
560
R4009
C212
0.01
B3003
R3029
R3030
C3048
0.01
100p
1
C3076
C4016
C4014
C4011
C4012
5.6K
R4015
2.2k
D4002
R4012
R4013
R4010
0
4.7k
4.7k
R3034
R3033
R3035
R3032
R3031
1k01k
4.7k
R36
R3101
R3100
R3099
IC3001
4.7k
0
0 0.01
R3039
R3041
R3043
R3037
R3040
R3042
R3038
0.047
C3072
C3080
C3016
S.CASS[H]
R3240
R3096
A.ENV/ND[L]
PAL_PB[H]
R3095
R3046
A.MUTE[H]
R3094
0
R3047
H.REC_ST[H]
R3093
0
R3048
R3092
0
R3049
ET_REC[H]
R3091
0
R3050
I2C_DATA
0
R3051
I2C_CLK
A.MUTE[H]
D.FFCTL[-]
TO
I2C_DATA
VIDEO/N.AUDIO
I2C_CLK
SHEET 1
LP/EP_SHORT[H]
SP_SHORT[H]
MESECAM_DET
R3102
0
V_FROM_OSD
GND
TO TERMINAL
CTL_A
SHEET 8
CTL_B
1k
4.7k
0
R3086
R3088
R3085
R3089
R3084
R3083
1k
C3050 B3001
0.1
R3077
1k
R3073
R3072
0
R3071
0
R3069
4.7k
R3067
R3066
R3065
R3064
R3063
R3062
330
R3061
330
R3060
330
R3059
330
R3058
C3078
C3077
1k
0
R3053
R3054
R3052
R3055
IC3002
S-80827CNNB-G-W
0.01
C3057
R3082
1k
R3080
C3037
100
X3002
R3229
1M
C3036
X3001
C3024
10k
4.7k
R3248
R3246
C3053
C3055
C3052
10
12p
18p
C3025
30p
C3041
B3903
Q3901
R3245
C3054
47
C3030
C3073
0.01
B3901
B3902
33k
CN3901
10k
C3031
R3074
3.3k
3.3k
R3235
R3236
3.3k
3.3k
R3224
R3223
R3244
33k
I2C_DATA
I2C_CLK
V_FROM_OSD
P.MUTE[L]
CHARA_DATA
GND
SW2
I2C_CLK2
I2C_DATA2
SW1
RF_VIDEO
AFC
AL5V
RC
DIG1
DIG2
DIG3
DIG4
DIG5
DIG6
DIG7
D_G
D_F
D_E
D_D
D_C
D_B
D_A
KEY1
KEY2
JSB
JSA
GND
TO S-SUB
SHEET 3
TO TUNER
SHEET 6
TO FRONT
SHEET 7
p10608001a_rev0
SHEET 2
A
BCDEFG
2-7 2-8
MAIN(S-SUB) SCHEMATIC DIAGRAM
5
CN501
TO
2D DIGITAL
CN1201
4
SHEET 9
C550
C551
C527
R510
4.7M
B502
C528
0.1
C532
L506
C519
C524
C525 C517
0.01 4.70.01
0.01
10
C521
4.7
C539
C520 C511
0.01
C522
C523
270p
C518
R508
2.2
1k
2.2 330µ
C510
0.01
C538
3.9k
3.9k
VHS[H]
PB_COLOR
KILLER_DET
V_FROM_AV
Y_TO_SUB
SYNC_OUT
REC_COLOR
FROM_SUB_EMPH
Y_TO_AV
Fsc
TO_SUB_EMPH
100µ
L501
R505
C515
R503
C513
270p
270p
1k
120p
1.5k
220p
C516
C514
R507
R506
R504
560
B501
GND
V_TO_OSD
TO VIDEO/N.AUDIO
SHEET 1
C529
0.01
C509
0.01
3
D502
C540
0.01
0.01
C530
IC501
0.01
2
I2C_DATA
TO SYSCON
SHEET 2
TO TERMINAL
SHEET 8
1
I2C_CLK
P.MUTE[L]
CHARA_DATA
V_FROM_OSD
C_IN_CH1
C_IN_CH2
Y_OUT
C_OUT
GND
GND
GND
GND
L504
C541
C542
R511
C502
C501
D501
47
B503
L503
C503
2.2
C507
0.01
R501
C504
C506
L502
C508
220
0.1
2.2
10µ
GND
TO SW.REG
SHEET 5
SW5V
p20462001a_rev0
SHEET 3
A
BCD EFG
2-9 2-10
MAIN(FMA) SCHEMATIC DIAGRAM
5
4
TO VIDEO/N.AUDIO
3
TERMINAL
SHEET 8
TO SW.REG
SHEET 5
SHEET 1
TO
NA_REC
LINE_OUT[R]
LINE_OUT[L]
A.IN1[R]
A.IN1[L]
F.AUDIO[R]
F.AUDIO[L]
SW12V
AL5.8V
2Fsc
NA_PB
SW5V
GND
GND
Q2201
UN211E-X
Q2203
2SD601A/QRS
R2211
2.7k
R2212
2.7k
Q2204
2SD601A/QRS
R2215
180
C2216 C2217
47
R2218
R2209
680
R2210
4.7k
R2213
4.7k
R2214
680
R2220
1k
3.3k
Q2202
R2216
1.2k
R2217
4.7k
R2234C2228
100
R2219
1.2k
L2202
C2229
C2214
C2215
C2218
C2219
C2220
C2221
10
10
10
22
10
0.022
C2222
0.01
C2227
10
R2240
R2239
C2232C2233
R2254
0.01
0.01
10k
Q2255
K2253
Q2251
UN221E-X
TP2254
S.CASS[H]
ET_REC[H]
I2C_DATA
I2C_CLK
A.MUTE[H]
H.REC_ST[H]
PAL_PB[H]
A.ENV/ND[L]
A.FF
FMA_CH2
FMA_CH1
FMA_COM
TO SYSCON
SHEET 2
TO
VIDEO/N.AUDIO
SHEET 1
C2213
C2211
47
L2201
C2212
27k
R2255
4.7k
R2225
33
C2224
0.047
510
R2224
10
C2210
C2209
10
VR2251
C2208
R2257
C2259
R2252
220
C2257
C2256
C2251
C2207
C2206
C2205
R2256
2.2K
C2261
C2262
Q2254
0.015
0.33
0.01
0.01
C2254C2255
470.01
0.01
0.015
10
10
Q2253
UN221E-X
TP2253
R2251
4.7k
L2251
10µ
K2251
K2252
R2253
100
L2252
150µ
C2258
180p
Q2252
UN221E-X
D2251
C2253
C2252
IC2201
2
B2201
R2229R2227
39k39k
R2201
R2203
RF_AUDIO
TO TUNER
SHEET 6
1
DEMOD[R]
DEMOD[L]
GND
R2226
R2228
27k
27k
10
C2201
47k
47k
4.7
C2202
R2205
R2207
4.7
C2203
47k
47k
R2222
4.7k
C2204
33
R2223
510
C2223
0.047
R2208R2206R2204R2202
6.8k6.8k6.8k6.8k
p20443001a_rev0
SHEET 4
A
BCDEFG
2-11 2-12
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