JVC GR-SXM250US - User Manual

SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
No.86721
2003/02
COMPACT VHS CAMCORDER
86721200302
GR-SXM250U S ,GR-SXM750U C
GR-SXM750U S ,GR-SXM755U C ,GR-SXM755U S
SPECIFICATION (The specifications shown pertain specifically to the model GR-SXM755)
Camcorder
General
Connectors
AC Adapter
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM ASSEMBLY).
Format : S-VHS/VHS NTSC standard
Power source : DC 11 V (Using AC Adapter)
DC 6 V (Using battery pack)
Power consumption
Viewfinder on :4.5 W
LCD monitor on
:5.0 W
Video light :3.0 W
Signal system :NTSC-type
Video recording system
Luminance : FM recording
Colour : Converted sub-carrier direct recording
Conforms to VHS standard
Cassette : / cassette
Tape speed
SP : 33.35 mm/sec. (1-5/16 ips)
LP : 11.12 mm/sec. (7/16 ips)
Recording time (max.)
SP : 40 minutes
LP : 120 minutes (with TC-40 cassette)
Operating
temperature : 0ºC to 40ºC (32ºF to 140ºF)
Operating humidity : 35% to 80%
Storage temperature : -20ºC to 50ºC (-4ºF to 122ºF)
Weight : Approx. 870 g
Dimensions (W x H x D) : 113 mm x 117 mm x 199 mm
(4-1/2" x 4-5/8" x 7-7/8")
Pickup
: 1/6" format CCD
Lens : F1.6, f = 2.7 mm to 43.2 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
LCD monitor
: 3.5" diagonally measured, LCD
Speaker
: Monaural
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)
S-Video
: Y: 1 V (p-p), 75 , analog output
C: 0.29 V (p-p), 75 , analog output
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
Some accessories are not available in some areas.
Please consult your nearest JVC dealer for details on accessories and
their availability.
Optional Accessories
• Battery Packs BN-V12U, BN-V20U, BN-V400U
• Compact S-VHS (
) Cassettes ST-C-40/30/20
• Compact VHS (
) Cassettes TC-40/30/20
• Active Carrying Bag CB-V7U
• Cassette Adapter C-P7U
• A/V (Audio/Video) Cable
• S-Video cable
GR-SXM250US,GR-SXM750UC,GR-SXM750US,GR-SXM755UC,GR-SXM755US M3C623,M3C643

Summary

Precautions for Safe Servicing

General Servicing Safety

Key safety precautions and warnings to follow when servicing JVC products.

Specific Service Instructions

Assembly and Disassembly Procedures

Detailed instructions for disassembling and reassembling various parts of the camcorder.

Special Operating Modes

Information on emergency displays, automatic demonstration, and tape handling.

Adjustment Procedures

Mechanism and Electrical Adjustments

Procedures for mechanism, tape transport, and electrical adjustments with required tools.

Parts List and Exploded Views

Exploded Views and Part Details

Illustrated exploded views and comprehensive lists for identifying all parts.

Schematic Diagrams and Charts

Schematic Diagram Notes

Key notes and symbols used in schematic diagrams for understanding circuit functions.

Waveforms

Illustrations of signal waveforms for various circuits, aiding in troubleshooting.

Voltage Charts

Reference charts detailing voltage values at various points for diagnostics.

JVC GR-SXM250US Specifications

General

Recording Media	MiniDV Tape
Digital Zoom	700x
LCD Screen Size	2.5 inches
Camcorder Media Type	MiniDV
Recording Format	DV
Effective Pixels	680, 000 pixels
Lens	JVC lens
Type	Camcorder
Image Sensor	1/4-inch CCD
Video Resolution	720x480 pixels
Viewfinder	Electronic