JVC GR-DVX48A, GR-DVX48A-S, GR-DVX48EA, GR-DVX49A, GR-DVX78A Service Manual
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SERVICE MANUAL
DIGITAL VIDEO CAMERA
GR-DVX48A/A-S/EA,DVX49A,DVX78A/A-S/EA
Regarding service information other than these sections, refer to the GR-DVX44EG,DVX88EG service manual (No. 86617).
Also, be sure to note important safety precautions provided in the service manual.
SPECIFICATIONS
For General
Power supply : DC 11.0 V } (Using AC Adapter)
Power consumption
LCD monitor off, viewfinder on :
LCD monitor on, viewfinder off :
Dimensions (W x H x D) : 51 mm x 120 mm x 97 mm
Weight : Approx. 500 g (GR-DVX78)
Operating temperature : 0°C to 40°C
Operating humidity : 35% to 80%
Storage temperature : –20°C to 50°C
Pickup : 1/4" CCD
Lens : F 1.8, f = 3.6 mm to 36 mm, 10:1 power zoom lens
Filter diameter : ø27 mm
LCD monitor :
Viewfinder : Electronic viewfinder with 0.44" colour LCD
Speaker : Monaural
For Digital Video Camera
Format : DV format (SD mode)
Signal format : PAL standard
Recording/Playback format : Video: Digital component recording
Cassette : Mini DV cassette
Tape speed : SP: 18.8 mm/s
Maximum recording time : SP: 80 min.
(using 80 min. cassette) LP: 120 min.
For Digital Still Camera (GR-DVX78 only)
Storage media : SD Memory Card/MultiMediaCard
Compression system : Still image : JPEG (compatible)
File size : 2 modes (XGA: 1024 x 768 pixels/VGA: 640 x 480 pixels)
Picture quality : 2 modes (FINE/STANDARD)
Approximate number of storable images
(with the provided memory card [8 MB], with Sound Effects pre-stored)
FINE : 40 (VGA), 20 (XGA)
STANDARD : 130 (VGA), 60 (XGA)
(with an optional memory card [16 MB])
FINE : 100 (VGA), 40 (XGA)
STANDARD : 290 (VGA), 140 (XGA)
(with an optional memory card [32 MB])
FINE : 210 (VGA), 90 (XGA)
STANDARD : 610 (VGA), 290 (XGA)
(with an optional memory card [64 MB])
FINE : 430 (VGA), 190 (XGA)
STANDARD : 1230 (VGA), 600 (XGA)
(The specifications shown pertain specifically to the model GR-DVX78A/DVX49A/DVX48A/
DVX78EA/DVX48EA/DVX78SH/DVX48SH)
Camcorder
DC 7.2 V } (Using battery pack)
Approx. 4.4 W (GR-DVX78), Approx. 4.0 W (GR-DVX49/DVX48)
Approx. 5.2 W (GR-DVX78), Approx. 4.8 W (GR-DVX49/DVX48)
(with the LCD monitor closed and the viewfinder pushed back in)
Approx. 470 g (GR-DVX49/DVX48)
2.5" diagonally measured, LCD panel/TFT active matrix system
: Audio: PCM digital recording, 32 kHz 4-channel (12-bit),
48 kHz 2-channel (16-bit)
LP: 12.5 mm/s
Moving image : MPEG4 (compatible)
For Connectors
AV
Video output : 1 V (p-p), 75 Ω, analogue
Video input (GR-DVX78 only) : 0.8 V (p-p) – 1.2 V (p-p), 75 Ω, analogue
Audio output : 300 mV (rms), 1 kΩ, analogue, stereo
Audio input (GR-DVX78 only) : 300 mV (rms), 50 kΩ, analogue, stereo
Headphone output
(GR-DVX78 only) : Stereo
DV
Input/output : 4-pin, IEEE 1394 compliant
AC Adapter AP-V10A, AP-V10EA or AP-V10ED
Power requirement : AC 110 V to 240 V`, 50 Hz/60 Hz
Output : DC 11 V } , 1 A
Dimensions (W x H x D) : 59 mm x 31 mm x 84 mm
Weight : Approx. 140 g (not including Power Cord)
Jack Box
For General
Dimensions (W x H x D) : 52 mm x 22 mm x 73 mm
Weight : Approx. 35
For Connectors
USB (GR-DVX78 only) : Type B
EDIT (GR-DVX78 only) : ø3.5 mm, 2-pole
S-Video
Output : Y : 1 V (p-p), 75 Ω, analogue
Input (GR-DVX78 only) : Y : 0.8 V (p-p) – 1.2 V (p-p), 75 Ω, analogue
JLIP (GR-DVX49/DVX48 only) : ø3.5 mm, 4-pole
PC (DIGITAL PHOTO)
(GR-DVX49/DVX48 only) : ø2.5 mm, 3-pole
Specifications shown are for SP mode unless otherwise indicated. E & O.E. Design and specifications subject
to change without notice.
C : 0.29 V (p-p), 75 Ω, analogue
C : 0.2 V (p-p) – 0.4 V (p-p), 75 Ω, analogue
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.
No. 86643
May 2001
TABLE OF CONTENTS
DIFFERENT TABLE ........................................................................................................................................................... 1 to 3
4. CHARTS AND DIAGRAMS (4-1 to 4-2)
4.1 JUNCTION CIRCUIT BOARD....................................................................................................................................... 4-1
4.2 JACK CIRCUIT BOARD ................................................................................................................................................ 4-2
5. PARTS LIST (5-1 to 5-12)
5.1 PACKING AND ACCESSORY ASSEMBLY <M1> ........................................................................................................ 5-1
5.2 ELECTRICAL PARTS LIST (GR-DVX78A/A-S/EA) ...................................................................................................... 5-3
MAIN BOARD ASSEMBLY <01>...................................................................................................................................... 5-3
The following table indicate main different points between models GR-DVX44EG, GR-DVX48A, GR-DVX48A-S, GR-DVX48EA
and GR-DVX49A.
ITEM
AC ADAPTER AP-V10EG AP-V10A AP-V10A-S AP-V10EA AP-V10A
MODEL
The following table indicate main different points between models GR-DVX88EG, GR-DVX78A, GR-DVX78A-S and GR-DVX78EA.
ITEM
AC ADAPTER AP-V10EG AP-V10A AP-V10A-S AP-V10EA
MODEL
GR-DVX44EG GR-DVX48A GR-DVX48A-S GR-DVX48EA GR-DVX49A
GR-DVX88EG GR-DVX78A GR-DVX78A-S GR-DVX78EA
The following table indicate different parts number between models GR-DVX44EG, GR-DVX48A, GR-DVX48A-S, GR-DVX48EA
and GR-DVX49A.
PACKING AND ACCESSORY ASSEMBLY <M1> Note: As for IB (INSTRUCTIONS), refer to sec.5.
REF. MODEL
!
NO. ITEM
1 PACKING CASE LY32032-008A LY32032-010A LY31717-023A
9 WARRANTY CARD BT-54013-2 — — BT-56001-2 —
! 12 AC ADAPTER LY20688-013A LY20688-003A LY20688-014A LY20688-007A LY20688-003A
14 JACK BOX LY32142-002A *LY32142-002B * * *
! 28 POWER CORD QMPL120-190-JR QMPS110-190-JR QMPH020-190-JR QMPL120-190-JR
29 ADAPTER PLUG QAM0302-001 — — — —
31 SER.NET CARD — — — BT-56002-2 —
33 SHEET(CON.PLUG) — LYT0609-001A — LYT0609-001A
! 34 CONVERSION PLUG — PEMC1012-02 PEMC1012 — PEMC1012-02
GR-DVX44EG GR-DVX48A GR-DVX48A-S GR-DVX48EA GR-DVX49A
FINAL ASSEMBLY <M2>
REF. MODEL
!
NO. ITEM
101 LOWER CASE LY10287-002A *LY10287-002B * * *
191 PLATE LY42906-004A LY42906-008A LY42906-009A
215 STICKER LY43130-006A LY43130-007A
216 SPACER(A) LY30029-0H7B *LY30029-0H7C * * *
220 FRONT COVER ASSY LY20731-004B LY20731-002C LY20731-007B
220H COVER(AV) LY32136-004A LY32136-007A
221 SCREW QYSPSGT1740Z
229 SCREW QYSPSGT1735Z *
GR-DVX44EG GR-DVX48A GR-DVX48A-S GR-DVX48EA GR-DVX49A
QYSPSGT1740R
QYSPSGT1730Z
* * *
Notes : Mark is same as left.
Mark — is not used.
Mark * reference model was also changed.
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