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SERVICE MANUAL
No. 86660
December 2001
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.
(The specifications shown pertain specifically to the model GR-SXM745U)
COMPACT VHS CAMCORDER
SPECIFICATIONS
Regarding service information other than these sections, refer to the GR-SXM340U and GR-SXM740U service manual (No. 86656).
Also, be sure to note important safety precautions provided in the service manual.
GR-AXM236U,AXM240U,SXM240U
SXM245U,SXM248U
AXM341U,SXM540U,SXM745U
Camcorder
General
Format
: S-VHS/VHS NTSC standard
Power source
: DC 11 V
(Using AC Adapter)
DC 6 V
(Using battery pack)
Power consumption
Viewfinder on
: 4.0 W
LCD monitor on
: 4.5 W
Video light
: 3.0 W
Signal system
: NTSC-type
Video recording system
Luminance
: FM recording
Color
: Converted sub-carrier direct recording
Conforms to VHS standard
Cassette
:
/
cassette
Tape speed
SP
: 33.35 mm/sec. (1-5/16 ips)
EP
: 11.12 mm/sec. (7/16 ips)
Recording time (max.)
SP
: 40 minutes
EP
: 120 minutes
(with TC-40 cassette)
Operating temperature : 0°C to 40°C (32°F to 104°F)
Operating humidity
: 35% to 80%
Storage temperature
: ­20°C to 50°C (­4 °F to 122°F)
Weight
: Approx. 930 g (2.1 lbs)
Dimensions
: 200 mm x 112 mm x 118 mm (7-7/8" x 4-7/16" x 4-11/16")
(W x H x D)
(with the LCD monitor closed and with the viewfinder fully
tilted downward)
Pickup
: 1/4" format CCD
Lens
: F1.6, f = 3.9 mm to 62.4 mm,
16:1 power zoom lens with auto iris and macro control, filter
diameter 40.5 mm
Viewfinder
: Electronic viewfinder with 0.5" black/white CRT
White balance
adjustment
: Auto/Manual adjustment
Some accessories are not available in some areas. Please consult your
nearest JVC dealer for details on accessories and their availability.
Specifications shown are for SP mode unless otherwise indicated.
E & O.E. Design and specifications subject to change without notice.
LCD monitor
: 3.5" diagonally measured, LCD panel/TFT active
matrix system
Speaker
: Monaural
Connectors
Video
: 1 V (p-p), 75
unbalanced, analog output (via Video
output connector)
Audio
: 300 mV (rms), 1 k
analog output
(via Audio output connector)
Digital
: ø3.5 mm, 4-pole, mini-head jack
S-Video
: Y : 1 V (p-p), 75
, analog output
C : 0.29 V (p-p), 75
, analog output
AC Adapter
Power requirement
U.S.A. and Canada
: AC 120 V`, 60 Hz
Other countries
: AC 110 V to 240 V`, 50 Hz/60 Hz
Output
: DC 11 V
, 1 A
Optional Accessories
· Battery Packs BN-V12U, BN-V20U, BN-V400U
· A/V (Audio/Video) Cable
· Compact S-VHS (
) Cassettes
ST-C-40/30/20
· Compact VHS (
) Cassettes TC-40/30/20
· Active Carrying Bag CB-V7U


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TABLE OF CONTENTS
DIFFERENT TABLE ........................................................................................................................................................... 1 to 4
5. PARTS LIST (5-1 to 5-6)
5.1
PACKING AND ACCESSORY ASSEMBLY <M1> ........................................................................................................ 5-1
5.2
FINAL ASSEMBLY <M2> .............................................................................................................................................. 5-3
5.3
MONITOR ASSEMBLY <M5> [GR-AXM341U, SXM540UC] ........................................................................................ 5-6
The following table indicate main different points between models GR-SXM340U, GR-AXM236UC, GR-AXM240UC,
GR-SXM240U, GR-SXM245U, GR-SXM245UC and GR-SXM248UC.
The following table indicate different parts number between models GR-SXM340U,GR-AXM236UC,GR-AXM240UC,
GR-SXM240U,GR-SXM245U,GR-SXM245UC and GR-SXM248UC.
PACKING AND ACCESSORY ASSEMBLY <M1> Note: As for IB (INSTRUCTIONS), refer to sec.5.
!
REF.
MODEL
GR-SXM340U GR-AXM236UC GR-AXM240UC GR-SXM240U
GR-SXM245U
GR-SXM245UC GR-SXM248UC
No.
ITEM
1
PACKING CASE
LY32545-001B LY32545-003A
LY32545-002A
6
REGIST.CARD
BT-51028-1
--
--
BT-51028-1
----
7
WARRANTY INF.
BT-51005-5
--
--
BT-51005-5
----
9
SHEET(AGREMENT)
LYT0934-001A
--
--
--
--
--
--
17
WARRANTY CARD
--
BT-52004-2
--
--
BT-52004-2
18
SER.NET CARD
--
BT-20071B
--
--
BT-20071B
32
PC CONNECTION CABLE QAM0384-001
--
--
--
--
--
--
33
CORE FILTER
QQR1266-001
--
--
--
--
--
--
34
CD ROM ASSY
LY32210-020B
--
--
--
--
--
--
36
SHEET(ATT.)
LYT0974-001A
--
--
--
--
--
--
FINAL ASSEMBLY <M2>
!
REF.
MODEL
GR-SXM340U GR-AXM236UC GR-AXM240UC GR-SXM240U
GR-SXM245U
GR-SXM245UC GR-SXM248UC
No.
ITEM
101
CASSETTE COVER(M)ASSY LY20694-012A LY20694-010A
LY20694-012A
LY20694-011A
103
UPPER CASE(M)
LY10257-054A LY10257-062A LY10257-051A LY10257-069A LY10257-063A
LY10257-072A
110
LOWER CASE ASSY
LY20684-023A LY20684-005A
LY20684-022A
125
TOP OPE UNIT
LY20614-012C LY20614-004C LY20614-010C
LY20614-020B
LY20614-001C
130
REAR UNIT
LY20615-007B LY20615-005E
135
FRONT COVER ASSY LY20683-036A LY20683-038A LY20683-034A
LY20683-039A
LY20683-054A
135F DC LIGHT/COVER(LIGHT) LY32040-001A LY30934-017A LY32040-001A
135G STICKER(A)
LY32058-002A LY32058-001A LY32058-002A
135H STICKER(C)
LY32060-003A LY32060-005A
135J
SPACER(A)
LY30029-0B4A
--
LY30029-0B4A
135K CAUTION LABEL
YQ44341-6
--
YQ44341-6
139
SCREW
--
*QYSPSTU1725M
*
*
*
*
*
140
FRAME ASSY
LY20832-001B LY20832-002B LY20832-001B
140E CONTACT(LIGHT),X2
YQ43810-1-1
--
YQ43810-1-1
140F E-SI C WIRE C-F
WJM0259-001A
--
WJM0259-001A
142
SCREW
QYSPSPU1720Z(,X2) *QYSPSPU1720Z(,X1)
*
*
*
*
*
Notes : Mark
is same as left.
Mark -- is not used.
Mark * reference model was also changed.
MODEL
GR-SXM340U GR-AXM236UC GR-AXM240UC GR-SXM240U
GR-SXM245U
GR-SXM245UC GR-SXM248UC
ITEM
BODY COLOR
METALLIC GRAY
MOLD BLACK
METALLIC GRAY
SILVER
DC LIGHT
Used
Not Used
Used
DIGITAL TERMINAL
Used
Not Used
The following table indicate main different points between models GR-SXM740U, GR-AXM341U, GR-SXM540UC
and GR-SXM745U.
MODEL
GR-SXM740U
GR-AXM341U GR-SXM540UC GR-SXM745U
ITEM
LCD MONITOR
3.5"
3"
3.5"
BODY COLOR
SILVER
MOLD BLACK
SILVER
DIGITAL TERMINAL
Used
Not Used
Used
REMOTE CONTROL UNIT
Not Used
RM-V715U
1


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2
MECHANISM ASSEMBLY <M3>
!
REF.
MODEL
GR-SXM340U GR-AXM236UC GR-AXM240UC GR-SXM240U
GR-SXM245U
GR-SXM245UC GR-SXM248UC
No.
ITEM
400
MECHA(B)ASSY
YMA0034A-E
YMA0033A-E
YMA0034A-E
406
CASSETTE GUIDE ASSY(RIGHT) YQ44339A-7
----
YQ44339A-7
406A SW.LEVER(RIGHT)
YQ32162-1-3
----
YQ32162-1-3
406B TORSION SPRING
YQ44340-1-4
----
YQ44340-1-4
407
SCREW
LY42819-001A
----
LY42819-001A
466
ROTARY ENCODER
QSW0888-002 QSW0888-001
QSW0888-002
MONITOR ASSEMBLY <M5>
!
REF.
MODEL
GR-SXM340U GR-AXM236UC GR-AXM240UC GR-SXM240U
GR-SXM245U
GR-SXM245UC GR-SXM248UC
No.
ITEM
!500
MONITOR ASSY
LY20836-005A LY20836-006A
LY20836-016A LY20836-005A
LY20836-021A
!501
MONITOR COVER ASSY LY20834-004A LY20834-005A
LY20834-009A LY20834-004A
LY20834-007A
501A PLATE(WINDOW)
LY32329-002A LY32329-001A
LY32329-002A
501B STICKER(B)
LY32554-003A LY32554-004A
LY32554-003A
505
HINGE COVER(UPPER) LY31939-004A LY31939-003A
LY31939-004A
LY31939-001A
MAIN BOARD ASSEMBLY <01>
!
REF.
MODEL
GR-SXM340U GR-AXM236UC GR-AXM240UC GR-SXM240U
GR-SXM245U
GR-SXM245UC GR-SXM248UC
No.
ITEM
PW1
MAIN BOARD ASSY
YB10356UB1-01 YB10356UI1-01
YB10356UA1-01 YB10356U01-01
IC105 IC(DIGITAL)
TC7S66FU-X
----
--
------
IC4002 IC
Z4C2973-32-X
----
--
------
IC4701 IC
--
MM1512XN-X
--
------
IC4702 IC
BA7665FS
----
BA7665FS
IC8001 IC
MAX3221CAE
----
--
------
Q3505 TRANSISTOR
DTC144EE
----
DTC144EE
Q4001 TRANSISTOR
DTC144EE
----
DTC144EE
Q6306 MOS FET
SSM3K02F
--
SSM3K02F
D4001 DIODE
DAN222
----
DAN222
D8001 ZENER DIODE
EMZ6.8N
----
--
------
D8002 ZENER DIODE
EMZ6.8N
----
--
------
R182
MG RESISTOR
NRSA63J-105X
----
--
------
R4013 MG RESISTOR
NRSA63J-102X
----
--
------
R4014 MG RESISTOR
NRSA63J-103X
----
NRSA63J-103X
R4712 MG RESISTOR
NRSA63D-680X
----
NRSA63D-680X
R4713 MG RESISTOR
NRSA63D-680X
----
NRSA63D-680X
R6306 MG RESISTOR
NRS12BK-R47W
--
NRS12BK-R47W NRS12BK-R47W
R6307 MG RESISTOR
NRSA63J-104X
--
NRSA63J-104X
NRSA63J-104X
R8001 MG RESISTOR
NRSA63J-331X
----
--
------
R8002 MG RESISTOR
NRSA63J-0R0X
----
--
------
R8003 MG RESISTOR
NRSA63J-0R0X
----
--
------
C144
CAPACITOR
--
NDC31HJ-101X
C4006 CAPACITOR
--
NDC31HJ-100X
C4024 CAPACITOR
NCF31EZ-104X
----
--
------
C4025 CAPACITOR
NCB31CK-104X
----
NCB31CK-104X
C4044 CAPACITOR
NCB30JK-105X
----
--
------
C4713 E CAPACITOR
NEA70JM-226X
----
NEA70JM-226X
C4714 E CAPACITOR
NEA70GM-107X
----
NEA70GM-107X
C4715 CAPACITOR
NCB31EK-103X
----
NCB31EK-103X
C6307 E CAPACITOR
NEA71CM-106X
--
NEA71CM-106X
C8001 CAPACITOR
NCF31EZ-104X
----
--
------
C8002 CAPACITOR
NCF31EZ-104X
----
--
------
C8003 CAPACITOR
NCF31EZ-104X
----
--
------
C8004 CAPACITOR
NCF31EZ-104X
----
--
------
C8005 CAPACITOR
NBE20JM-106X
----
--
------
C8006 CAPACITOR
NCF31EZ-104X
----
--
------
L501
MG RESISTOR
NRSA63J-0R0X
----
--
------
L2001 COIL
NQL144K-470X
NQL144K-101X
NQL144K-470X
L8001 COIL
NQL365K-220X
----
--
------
J505
S JACK
QND0068-001
----
QND0068-001
CN6
CONNECTOR
QGA1201C2-02X
--
QGA1201C2-02X
Notes : Mark
is same as left.
Mark -- is not used.


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3
PACKING AND ACCESSORY ASSEMBLY <M1> Note: As for IB (INSTRUCTIONS), refer to sec.5.
!
REF.
MODEL
GR-SXM740U
GR-AXM341U GR-SXM540UC GR-SXM745U
No.
ITEM
1
PACKING CASE
LY32545-006B LY32545-003A
LY32545-001B
LY32545-006B
6
REGIST CARD
BT-51028-1
--
BT-51028-1
7
WARRANTY INF.
BT-51005-5
--
BT-51005-5
9
SHEET(AGREMENT)
LYT0934-001A
--
LYT0934-001A
17
WARRANTY CARD
----
BT-52004-2
--
18
SER.NET CARD
----
BT-20071B
--
19
REMOTE CONTROL UNIT
----
--
LY42129-001A
20
BATTERY,X2
----
--
AAA(R03)
32
PC CONNECTION CABLE QAM0384-001
--
QAM0384-001
33
CORE FILTER
QQR1266-001
--
QQR1266-001
34
CD ROM ASSY
LY32210-020B
--
LY32210-020B
36
SHEET(ATT.)
LYT0974-001A
--
LYT0974-001A
The following table indicate different parts number between models GR-SXM740U, GR-AXM341U, GR-SXM540UC and GR-SXM745U.
FINAL ASSEMBLY <M2>
!
REF.
MODEL
GR-SXM740U
GR-AXM341U GR-SXM540UC GR-SXM745U
No.
ITEM
101
CASSETTE COVER(M)ASSY LY20815-001A
LY20694-010A LY20694-011A
LY20815-001B
103
UPPER CASE(M)
LY10257-056A
LY10257-050A LY10257-052A
LY10257-070A
110
LOWER CASE ASSY
LY20684-023A
LY20684-005A LY20684-023A
125
TOP OPE UNIT
LY20614-009C
LY20614-010C LY20614-009C
130
REAR UNIT
LY20764-010A
LY20615-005E LY20615-007B
LY20764-010A
135
FRONT COVER ASSY
LY20683-035A
LY20683-034A LY20683-035A
135G STICKER(A)
LY32058-003A
LY32058-002A LY32058-003A
135H STICKER(C)
LY32060-003A
LY32060-005A LY32060-003A
139
SCREW
QYSPSPU1720Z(,X2) *QYSPSPU1720Z(,X1)
*
*
142
SCREW
--
*QYSPSTU1725M
*
*
Notes : Mark
is same as left.
Mark -- is not used.
Mark * reference model was also changed.
MECHANISM ASSEMBLY <M3>
!
REF.
MODEL
GR-SXM740U
GR-AXM341U GR-SXM540UC GR-SXM745U
No.
ITEM
400
MECHA(B)ASSY
YMA0034A-E
YMA0033A-E
YMA0034A-E
406
CASSETTE GUIDE ASSY(RIGHT) YQ44339A-7
--
YQ44339A-7
406A
SW.LEVER(RIGHT)
YQ32162-1-3
--
YQ32162-1-3
406B
TORSION SPRING
YQ44340-1-4
--
YQ44340-1-4
407
SCREW
LY42819-001A
--
LY42819-001A
466
ROTARY ENCODER
QSW0888-002 QSW0888-001
QSW0888-002
MONITOR ASSEMBLY <M5>
!
REF.
MODEL
GR-SXM740U
GR-AXM341U GR-SXM540UC GR-SXM745U
No.
ITEM
!500
MONITOR ASSY
LY20836-007A LY20836-012A LY20836-010A LY20836-007A
!501
MONITOR COVER ASSY LY20816-001A LY20834-005A LY20834-007A LY20816-001A
501A PLATE(WINDOW)
LY32329-002A LY32329-001A LY32329-002A
501B STICKER(B)
LY32554-003A LY32554-004A LY32554-003A
501C SPACER(A)
--
LY30029-0R3A
--
501D SPACER(A)
--
LY30029-0R4A
--
502
MONITOR CASE ASSY LY32544-001A LY32035-001A
LY32544-001A
504
SHIELD CASE
LY32334-001A LY32332-001A
LY32334-001A
505
HINGE COVER(UPPER) LY31939-001A LY31939-003A LY31939-001A
518
LCD MODULE
QLD0212-001 QLD0213-001
QLD0212-001
519
LIGHT SCREEN
--
LY43391-001A
--
520
LAMP
--
QLL0111-001
--
521
HOLDER,X2
--
LY43394-001A
--
522
SHEET
--
LY43395-001A
--
523
DIFFUSION SHEET(3)
--
LY43363-001A
--
528
LCD FRAME
LY32335-001A LY32333-001A
LY32335-001A
530
BACK LIGHT
QLL0113-001
----
QLL0113-001


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4
MAIN BOARD ASSEMBLY <01>
!
REF.
MODEL
GR-SXM740U
GR-AXM341U GR-SXM540UC GR-SXM745U
No.
ITEM
PW1
MAIN BOARD ASSY
YB10356-UK1-01 YB10356-UJ1-01 YB10356-UK1-01 YB10356UC1-01
IC105 IC(DIGITAL)
TC7S66FU-X
--
TC7S66FU-X
IC1801 IR DETECT UNIT
----
--
PIC-26043S
IC4002 IC
Z4C2973-32-X
--
Z4C2973-32-X
IC4701 IC
--
MM1512XN-X
----
IC4702 IC
BA7665FS
--
BA7665FS
IC8001 IC
MAX3221CAE
--
MAX3221CAE
Q3505 TRANSISTOR
DTC144EE
--
DTC144EE
Q4001 TRANSISTOR
DTC144EE
--
DTC144EE
D4001 DIODE
DAN222
--
DAN222
D8001 ZENER DIODE
EMZ6.8N
--
EMZ6.8N
D8002 ZENER DIODE
EMZ6.8N
--
EMZ6.8N
R182
MG RESISTOR
NRSA63J-105X
--
NRSA63J-105X
R4013 MG RESISTOR
NRSA63J-102X
--
NRSA63J-102X
R4014 MG RESISTOR
NRSA63J-103X
--
NRSA63J-103X
R4712 MG RESISTOR
NRSA63D-680X
--
NRSA63D-680X
R4713 MG RESISTOR
NRSA63D-680X
--
NRSA63D-680X
R8001 MG RESISTOR
NRSA63J-331X
--
NRSA63J-331X
R8002 MG RESISTOR
NRSA63J-0R0X
--
NRSA63J-0R0X
R8003 MG RESISTOR
NRSA63J-0R0X
--
NRSA63J-0R0X
C144
CAPACITOR
--
NDC31HJ-101X
C4006 CAPACITOR
--
NDC31HJ-100X
----
C4024 CAPACITOR
NCF31EZ-104X
--
NCF31EZ-104X
C4025 CAPACITOR
NCB31CK-104X
--
NCB31CK-104X
C4044 CAPACITOR
NCB30JK-105X
--
NCB30JK-105X
C4713 E CAPACITOR
NEA70JM-226X
--
NEA70JM-226X
C4714 E CAPACITOR
NEA70GM-107X
--
NEA70GM-107X
C4715 CAPACITOR
NCB31EK-103X
--
NCB31EK-103X
C8001 CAPACITOR
NCF31EZ-104X
--
NCF31EZ-104X
C8002 CAPACITOR
NCF31EZ-104X
--
NCF31EZ-104X
C8003 CAPACITOR
NCF31EZ-104X
--
NCF31EZ-104X
C8004 CAPACITOR
NCF31EZ-104X
--
NCF31EZ-104X
C8005 CAPACITOR
NBE20JM-106X
--
NBE20JM-106X
C8006 CAPACITOR
NCF31EZ-104X
--
NCF31EZ-104X
L501
MG RESISTOR
NRSA63J-0R0X
--
NRSA63J-0R0X
L8001 COIL
NQL365K-220X
--
NQL365K-220X
J505
S JACK
QND0068-001
--
QND0068-001
MONITOR BOARD ASSEMBLY <07>
!
REF.
MODEL
GR-SXM740U
GR-AXM341U GR-SXM540UC GR-SXM745U
No.
ITEM
PW
MONITOR BOARD ASSY YB20913F
YB20913E
YB20913F
Q7607 TRANSISTOR
DTC144EE
----
DTC144EE
R7622 MG RESISTOR
NRSA63J-0R0X
----
NRSA63J-0R0X
R7647 MG RESISTOR
--
NRSA63J-0R0X
--
R7648 MG RESISTOR
NRSA63J-103X
----
NRSA63J-103X
R7649 MG RESISTOR
--
NRSA63J-333X
--
R7650 MG RESISTOR
NRSA63J-103X
----
NRSA63J-103X
Notes : Mark
is same as left.
Mark -- is not used.