JVC GR-D270US, GR-D271US, GR-D275US, GR-D290US, GR-D295US Diagram
SCHEMATIC DIAGRAMS
DIGITAL VIDEO CAMERA
YF075B20055
GR-D270US, GR-D271US, GR-D275US,
GR-D290US, GR-D295US
CD-ROM No.SML200505
GR-D270US2M, GR-D271US2M, GR-D275US2M[M5D2S5]
GR-D290US2M, GR-D295US2M[M5D2S7]
There are two types of mechanisms used in this model.
While the previous SERVICE MANUAL <No.YF075> features existing <YMA0029 series>, this SERVICE MANUAL <No.YF075B>
features <YMB0051 series>.The<YMB0051 series> is a new type of DVC mechanism.
For the distinguishing methods, refer to “How to distinguish the two types”.
For disassembling methods, refer to the SERVICE MANUAL <YF081>.
Regarding service information other than these sections, refer to the service manual No. YF075 (GR-D290US).
<How to distinguish the two types>
1.Distinction by checking the Rating Label
If the new mechanism <YMB0051 series> is used, “2” is marked in the upper right part of the Rating Label.
2.Distinction by checking the actual model
Open the CASSETTE COVER, and check the CASSETTE
HOUSING.
If the model uses the new mechanism <YMB0051 series>,
“PUSH” is marked in the near right part of the CASSETTE
HOUSING surface.
COPYRIGHT © 2005 Victor Company of Japan, Limited
2
Fig.1
Refer to Fig.1
2
PUSH
Fig.2
No.YF075B
2005/5
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
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
2-1(No.YF075B)
OPEN
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.
LOCATION
IC
Category : IC
Horizontal “A” zone
Vertical “6” zone
(A : Component side)
D : Discrete component)
B : Foil side
C : Chip component
REF No.
IC101 B C 6 A
Note: For general information in service manual, please
refer to the Service Manual of GENERAL INFORMATION Edition 4 No. 82054D (January 1994).
(No.YF075B)2-2
6 RECH
L MUTE
7 DIAL OFF
DSYIO6
M
R
0
0
BOARD INTERCONNECTION
OP BLOCK
YTU94074-24
YTU94077-24
9 GND
8 OP_THRMO
7 F_PTR_AD
6 F_VCC
5 F_LED
4 FOCUS01
3 FOCUS04
2 FOCUS03
INT MIC
07
FRONT
W_Sens
RCU
EXT_MIC IN
12
EJECT
12
MONI SW
Light_LED
LITHIUM
BATTERY
CN701
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SPEAKER
YTU94074-20
YTU94077-20
1VCOMH
2VCOML
3VCL
4C41N
5C41P
6VGH
7C31N
8C31P
9VGL
10C23N
11C23P
12C22N
13C22P
14C21N
15C21P
16VDDA
17VFB
18DRV
19VSS
20ND
21VDD
22VDD1
23NC
24VSS1
LCD(MONITOR) MODULE
25VCOIN
26PDO
27VA[R]
28VA[G]
29VA[B]
30DE
31HS
32VS
33POL
34VDD
35NPC
36VSSD
37HWRESETZ
38GCL
39GDA
40GCS
CN7602
BL
15VCOM
14VIDR
13VIDG
12VIDB
11HCK1
10HCK2
9HST
8VREF
7DWN
6VCK
5VST
4EN
LCD(C-VF) MODULE
3SLEEP
2VDD
1VSS
YTU94074-16
YTU94077-16
CN114
1INT/R
2INT_GND
3INT_GND
4INT/L
CN103
1EJT_SW
2LITHIUM
3MONI_SW
4LAMP_ON
5REG_4.8V
6REG_4.8V
7GND
8GND
9GND
10EM_GND
11EXT/R
12EXT/L
13EM_DET_L
14EM_GND
15IR_RMC
16REG_4.8V
17IR_OUT
1SPK+
2SPK-
CN112
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
CN7601
YTU94074-26
MONITOR
60
12
14
CN7002
13
CN7001
12
11
10
9
8
7
6
5
VF
4
3
2
1
08
CN302
1REG_3.1V
2REG_3.1V
3REG_4.8V
4REG_4.8V
5LCD_CTL
6REG_4.8V
7AU_LV_OUT
8LCD_CS
9AU_LV_CLK
10VDCVF
11HDCVF
12MON_G
13MON_R
14MON_B
15HRP
16M_RVS
17GND
18GND
19GND
20GND
DECK OPE
YTU94077-26
16VF_SW
15GND
14GND
13GND
12VFREG4.8
11VF_9V
10VF_SLEEP
9EN
8VST
7VCK
6HST
5HCK2
4HCK1
3CVF_B
2CVF_G
1CVF_R
CN108
CN102
1 FOCUS02
IR_OUT
LENS_LED
F/Z_CS
GND
REG_4.8V
REG_3.1V
VOI_CLK
OPE
30
CN301
VOI_OUT
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
FOCUSO2
VOI_IN
EXT/R
EXT/L
EM_GND
GND
INT/R
INT/L
INT_GND
SPK+
SPK-
GND
GND
GND
GND
M_RVS
HRP
MON_B
MON_R
MON_G
HDCVF
VDCVF
AU_LV_CLK
LCD_CS
AU_LV_OUT
REG_4.8V
LCD_CTL
REG_3.1V
REG_3.1V
REG_4.8V
REG_4.8V
GND
GND
MENU_SW
KEY_C
GND
KEY_A
VOI_IN
LCD_G
LCD_B
LCD_R
HRP2
HDCVF
VDCVF
HRP
DCO0
FOCUSO3
IRIS_CS
VOI_OUT
DCO1
FOCUSO4
IRIS_PS
REG_4.8V
AU_LV_CLK
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
VOI_CLK
DCO2
REC_ADJ
1
2
3
4
5
6
7
8
9
DCO3
CN110
10 ZOOM02
F_VCC
FOCUSO0
OP DRV
ATF_GAIN
DOLRCK2
REG_3.1V
AUDIO
AU_LV_OUT
V_OUT
C_OUT
DYO1
10 MAIN
NOTE1: The number of patch cords ( ) are indicated by interconnected.
12 ZOOM04
11 ZOOM03
ZOOM2
NOSIG_LV
DOMCK2
SHUT_ATT
Y_OUT
DYO2
13 ZOOM01
ZOOM3
DUMP_CTL
DOBCK2
AUDIO_CS
CLK27B
DYO3
OUTH
15 HGVcc+
14 NC
ZOOM1
ZOOM4
ASPECT
DODAT2
BUZZER
PD_L
S2_DET
VIDEO
CLK27A
17 HGVss-
16 HGout+
HGVcc+
IRIS_MCK
VDIRS
AODAT
S_SHUT
A_MUTE
VIF_CS
INH
INV
MAIN IF
18 HGout-
HGOut+
HDIRS
AILRCK
AU_SIG/R
L_MUTE
GND
REG_3.1V
REG_4.8V
HDCVF
VDCVF
MON_R
MON_G
MON_B
VC0
20 DRIVE-
19 NC
HGVss-
FSPLLCTL
AIMCK
AU_SIG/L
EM_DET_L
VC1
7654321
8
VDD
22 Z_PTR_AD
21 DRIVE+
DRIVE-
HGOut-
DRIVE+
T_F_V_RST
M_REG4.8
CAM_OUT
CAM_CLK
PBVCOCTL
M_VCOCTL
AIBCK
AIDAT/AIDAT2
MONI/VF
EN
VF_9V
VC3
VC2
BLKA
GND
9
1011121314
RG GND
SUB
24 Z_LED
23 Z_VCC
Z_LED
VD_F/Z
F/Z_MCK
VST
VCK
BLKB
VL
REG_15V
BLKC
ZOO
20
V4H1V1V2Vout
V3
CCD
8 DIAL_PB
9 PHOTO_F
10 ZOOM_SW
11 GND
12 REG_3.1V
CN109
H2
TEST
YTU94074-20
YTU94077-20
CN101
GND
19
20 GND
CAM_CLK
CAM_OUT
T_F_V_RST
15 GND
16 GND
17 CCD_OUT
18 GND
V3
V2
V1
V4
14 GND
CCD_-7.5V
13 CCD_15V
11 RG
12 CCD_15V
H2
8H2
9H1
10 SUB
H1
RG
SUB
CDS/TG
REG_3.1V
CPOB
ID
HDIN
REG_4.8V
REG-CCD
PBLK
VF_CTL
CLKI
REG_CS
ADIN0
ADIN1
REGRTC_CLK
REGRTC_OUT
ADIN2
V_BATT
VDIN
REG_15V
GND
LITHIUM
REG_3.1V
REG
REG_12V
VFREG4.8
MREG_4.8
LCD_R
LCD_G
REG_12V
LCD_B
HRP2
RGB_CTL
VF_CS
AU_LV_CLK
AU_LV_OUT
HST
CVF_G
HCK2
CVF_R
S_IN_L
V_F_V_RST
REG_4.8V
REG_3.1V
REG_2.5V
REG_1.7V
OUTV
DOT_CLK
OSD_VD
PSCTL
GND
CVF_B
ANA_IN_H
ASPECT
HCK1
OSD_HD
REG_15V
REG_1.7V
CN402
REG_2.5V
CN104
CN401
M_UNREG
2V2
3V3
4V4
5 CCD_CTL
6 CCD_-7.5V
7 CCD_-7.5V
GND
CCD_15V
CCD_OUT
REG_4.8V
REG-CCD
ADIN4
ADIN6
ADIN3
ADIN5
ADIN7
LIT_3V
D_GAIN
AL_3.1V
CHRG_EVR
CAP_PWR
DRUM_ERR
CAP_ERR
ADP_DC
DRUM_PWR
EJT_SW
MONI_SW
LAMP_ON
IR_RMC
EM_DET_L
IR_OUT
CCD_CTL
T_F_V_RST
REG_3.1V
GND
CAPT_REQ
DSC_WKUP
123456789
35 P/R_GND GND
36 P/R_GND GND
37 CAM_SW_C
38 CAM_SW_B
39 CAM_SW_A
40 DEW_SENS
P/R_GND
REG_2.5V
REG_3.1V
2F1S1F
2S
HEAD
1V1
TG_CS
CDS_CS
ADIN8
ADIN9
DOMCK2
VDDSC
FLDDSC
CLKDSC
DOBCK2
I_MTR
SYS_RSTL
BATT_+
BATT_+
TVSEL
AU_LV_CLK
MXDT_OUT
DSC_STS
33 MONI_CHG
34 P/R GND GND
REC_CLK
REG_4.8V
1
P/R_GND21F31S4P/R_GND5P/R_GND62F72S8P/R_GND
DOLRCK2
DODAT2
FLSH_RST
DSC_RST
DSC_CLK
DSC_DT_OUT
DSC_DT_IN
DSC_CS
MXDT_OUT
DSC_STS
CAPT_REQ
DSC_WKUP
P_MEDIA
DSC_RST
26 REG_4.8V
VREF_1.1
AGC_OUT
Z_PTR_AD
FLSH_RST
24 P/R_GND GND
25 REC_CLK
REC_CTL
CN403
LOADING
F_PTR_AD
OP_THRMO
IRIS_CS
IRIS_PS
22 REC_ADJ
23 REC_DATA
REC_ADJ
NOSIG_LV
MOTOR
VOI_IN
21 REF_CLK
ATF_GAIN
1
P/R_GND
F/Z_CS
20 REG_2.5V
2
LOAD_REV
VF_SW
VF_SLEEP
AU_LV_OUT
DSC_DT_IN
DSC_CS
DSC_DT_OUT
DSC_CLK
10111213141516171819202122232425262728293031323334
27 REG_4.8V
28 REG_4.8V
29 REG_4.8V
30 REG_3.1V
31 REG_3.1V
32 REG_3.1V
VRB_ATF
REF_CLK
VRB_AGC
REC_DATA
PRE/REC
YTU94074-8
YTU94077-8
HDDSC
LENS_LED
VOI_OUT
VOI_CLK
19 NOSIG_LV
ATFI
DUMP_CTL
4
3
DEW_SENS
LOAD_FWD
DSCIO6
DSCIO7
CAM_CLK
CAM_OUT
VC3
VIF_CS
16 P/R_GND GND
17 ATFI
18 P/R_GND GND
RECH
ENV_OUT
6
5
CAM_SW_B
CAM_SW_A
ROTARY
ENCODER
SW
DSCIO5
MMC_CD
VC2
14 ATF_GAIN
15 VRB_ATF
PBH
8
P/R_GND7CAM_SW_C
DSCIO4
A16
SHUT_ATT
VC1
13 VRB_AGC
HID1
CN404
VDIN
HDIN
ID
CPOB
PBLK
CLKI
ADIN0
ADIN1
ADIN2
ADIN3
ADIN4
ADIN5
ADIN6
ADIN7
ADIN8
ADIN9
DSCIO3
DSCIO2
A15
A14
AUDIO_CS
VC0
BLKA
11 AGC_OUT
12 P/R_GND GND
HID3
MONI_CHG
S_SHUT
DSCIO0
DSCIO1
D15
A13
PD_L
BUZZER
BLKB
BLKC
8 EVN_OUT
9 VREF_1.1
10 P/R_GND GND
YTU94
YTU94
AODAT
DSYIO7
D14
A_MUTE
OSD_HD
7 REC_CTL
8
D_COIL_W9COIL_COM10D_PG-11GND
D
2-3(No.YF075B)
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