SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
No.86730
2003/04
DIGITAL VIDEO CAMERA
86730
2003
04
GR-D20EK,GR-D20EX,GR-D20EY,GR-D20EZ,GR-D21EK,
GR-D40EK,GR-D40EX,GR-D40EY,GR-D40EZ
SPECIFICATION
Camcorder
General
Digital Video Camera
Connectors
AC Adapter
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM ASSEMBLY).
PAL
Power supply
: DC 11.0 V
(Using AC Adapter)
DC 7.2 V
(Using battery pack)
Power consumption
LCD monitor off, viewfinder on : Approx. 3.4 W
LCD monitor on, viewfinder off : Approx. 4.7 W
Dimensions (W x H x D)
: 69 mm x 94 mm x 143 mm
(with the LCD monitor closed and the viewfinder pushed
back in)
Weight
: Approx. 525 g
Operating temperature
: 0°C to 40°C
Operating humidity
: 35% to 80%
Storage temperature
: -20°C to 50°C
Pickup
: 1/6" CCD
Lens
: F 1.6, f = 2.7 mm to 43.2 mm, 16:1 power zoom lens
Filter diameter
: Ø37 mm
LCD monitor
: 2.5" diagonally measured, LCD panel/TFT active
matrix system
Viewfinder
: Electronic viewfinder with 0.24" black/white LCD
Speaker
: Monaural
Format
: DV format (SD mode)
Signal format
: PAL standard
Recording/Playback format : Video: Digital component recording
: Audio: PCM digital recording,
32 kHz 4-channel (12-bit),
48 kHz 2-channel (16-bit)
Cassette
: Mini DV cassette
Tape speed
: SP : 18.8 mm/s
LP : 12.5 mm/s
Maximum recording time
: SP : 80 min.
(using 80 min. cassette)
LP : 120 min.
S-Video
Output
: Y : 1 V (p-p), 75
, analogue
C : 0.29 V (p-p), 75
, analogue
Input*
: Y : 0.8 V (p-p) -1.2 V (p-p), 75
, analogue
C : 0.2 V (p-p) -0.4 V (p-p), 75
, analogue
AV
Video output
: 1 V (p-p), 75
, analogue
Video input*
: 0.8 V (p-p) -1.2 V (p-p), 75
, analogue
Audio output
: 300 mV (rms), 1 k
, analogue, stereo
Audio input*
: 300 mV (rms), 50 k
, analogue, stereo
DV
Output
: 4-pin, IEEE 1394 compliant
Input*
: 4-pin, IEEE 1394 compliant
USB**
:5-pin
EDIT
Ø3.5 mm, 2-pole
* GR-D50/D30 only
** GR-D50/D40 only
Power requirement
AC 110 V to 240 V ~, 50 Hz/60 Hz
Output
: DC 11 V
, 1 A
Specifications shown are for SP mode unless otherwise indicated. E & O.E. Design and specifications subject
to change without notice.
GR-D20EK,GR-D20EX,GR-D20EY,GR-D20EZ,GR-D21EK,GR-D40EK,GR-D40EX,GR-D40EY,GR-D40EZ M3D122,M3D124
1-2 (No.86730)
TABLE OF CONTENTS
1
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.1
SAFTY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
2.1
BEFORE ASSEMBLY AND DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
2.2
ASSEMBLY AND DISASSEMBLY OF CABINET PARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
2.3
ASSEMBLY AND DISASSEMBLY OF CAMERA SECTION AND BOARD ASSEMBLY . . . . . . . . . .1-10
2.4
ASSEMBLY AND DISASSEMBLY OF [8]VF ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-12
2.5
ASSEMBLY AND DISASSEMBLY OF [10]MONITOR ASSEMBLY (CABINET PARTS) . . . . . . . . . .1-13
2.6
ASSEMBLY AND DISASSEMBLY OF [2]OP BLOCK ASSEMBLY
/ CCD BOARD ASSEMBLY (CAMERA SECTION AND BOARD ASSEMBLY) . . . . . . . . . . . . . . . . .1-14
2.7
SERVICE NOTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
2.8
TAKE OUT CASSETTE TAPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-16
2.9
EMERGENCY DISPLAY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-17
3
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18
3.1
PREPARATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18
3.2
TOOLS REQUIRED FOR ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18
3.3
JIG CONNECTOR CABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-20
3.4
MECHANISM ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21
3.5
ELECTRICAL ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-22
MODEL
GR-D20EK GR-D20EX GR-D20EY GR-D20EZ GR-D21EK GR-D40EK GR-D40EX GR-D40EY GR-D40EZ
DIGITAL INTERFACE
NO
NO
NO
NO
NO
USB
USB
USB
USB
POWER CORD
BS TYPE
CEE TYPE CEE TYPE CEE TYPE
BS TYPE
BS TYPE
CEE TYPE CEE TYPE CEE TYPE
USB CABLE
NO
NO
NO
NO
NO
YES
YES
YES
YES
CD-ROM
NO
NO
NO
NO
NO
YES
YES
YES
YES
CHARTS AND DIAGRAMS
BOARD INTERCONNECTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3
MAIN IF SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5
CPU SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
AUDIO SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9
DV_MAIN SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-11
VIDEO I/O SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
CAMERA DSP SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
OP DRIVER SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-17
TG SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
REG SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-21
AV STRM SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-23
MONI-BW SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25
BL-2.5 SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-27
CCD SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-28
JACK SCHEMATIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-29
PREMDA IF SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-30
MDA SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-31
PRE/REC SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-33
B/W-VF SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-35
ZOOM UNIT SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-36
MAIN CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-37
COMPONENT PARTS LOCATION GUIDE <MAIN> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-41
COMPONENT PARTS LOCATION GUIDE <PREMDA> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-42
PREMDA CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-43
MONI-BW CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-47
BL-2.5 CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-48
JACK CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-49
CCD CIRCUIT BOARD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-50
B/W-VF CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-50
POWER SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-51
VIDEO BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-53
VOLTAGE CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-57
PARTS LIST
1.
EXPLODED VIEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
1.1
PACKING AND ACCESSORY ASSEMBLY <M1> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1
1.2
FINAL ASSEMBLY <M2> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2
1.3
MECHANISM ASSEMBLY <M3> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
1.4
ELECTRONIC VIEWFINDER ASSEMBLY <M4> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
1.5
MONITOR ASSEMBLY (2.5 INCH) <M5>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
2.
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7
(No.86730)1-3
SECTION 1
PRECAUTIONS
1.1 SAFTY PRECAUTIONS
Prior to shipment from the factory, JVC products are strictly in-
spected to conform with the recognized product safety and elec-
trical codes of the countries in which they are to be
sold.However,in order to maintain such compliance, it is equally
important to implement the following precautions when a set is
being serviced.
1.1.1 Precautions during Servicing
(1) Locations requiring special caution are denoted by labels
and inscriptions on the cabinet, chassis and certain parts of
the product.When performing service, be sure to read and
comply with these and other cautionary notices appearing in
the operation and service manuals.
(2) Parts identified by the
symbol and shaded (
) parts
are critical for safety.
Replace only with specified part numbers.
NOTE :
Parts in this category also include those specified to
comply with X-ray emission standards for products
using cathode ray tubes and those specified for com-
pliance with various regulations regarding spurious
radiation emission.
(3) Fuse replacement caution notice.
Caution for continued protection against fire hazard.
Replace only with same type and rated fuse(s) as specified.
(4) Use specified internal wiring. Note especially:
· Wires covered with PVC tubing
· Double insulated wires
· High voltage leads
(5) Use specified insulating materials for hazardous live parts.
Note especially:
· Insulation Tape
· PVC tubing
·Spacers
· Insulation sheets for transistors
· Barrier
(6) When replacing AC primary side components (transformers,
power cords, noise blocking capacitors, etc.) wrap ends of
wires securely about the terminals before soldering.
Fig.1-1-1
(7) Observe that wires do not contact heat producing parts
(heatsinks, oxide metal film resistors, fusible resistors, etc.)
(8) Check that replaced wires do not contact sharp edged or
pointed parts.
(9) When a power cord has been replaced, check that 10-15 kg
of force in any direction will not loosen it.
Fig.1-1-2
(10) Also check areas surrounding repaired locations.
(11) Products using cathode ray tubes (CRTs)In regard to such
products, the cathode ray tubes themselves, the high volt-
age circuits, and related circuits are specified for compliance
with recognized codes pertaining to X-ray emission. Conse-
quently, when servicing these products, replace the cathode
ray tubes and other parts with only the specified parts. Under
no circumstances attempt to modify these circuits.Unautho-
rized modification can increase the high voltage value and
cause X-ray emission from the cathode ray tube.
(12) Crimp type wire connector
In such cases as when replacing the power transformer in
sets where the connections between the power cord and
power trans former primary lead wires are performed using
crimp type connectors, if replacing the connectors is un-
avoidable, in order to prevent safety hazards, perform care-
fully and precisely according to the following steps.
· Connector part number :E03830-001
· Required tool : Connector crimping tool of the proper
type which will not damage insulated parts.
· Replacement procedure
a) Remove the old connector by cutting the wires at a
point close to the connector.
Important : Do not reuse a connector (discard it).
Fig.1-1-3
b) Strip about 15 mm of the insulation from the ends of
the wires. If the wires are stranded, twist the strands
to avoid frayed conductors.
Fig.1-1-4
c) Align the lengths of the wires to be connected. Insert
the wires fully into the connector.
Fig.1-1-5
d) As shown in Fig.1-1-6, use the crimping tool to crimp
the metal sleeve at the center position. Be sure to
crimp fully to the complete closure of the tool.
Fig.1-1-6
e) Check the four points noted in Fig.1-1-7.
Fig.1-1-7
Power cord
cut close to connector
15 mm
Connector
Metal sleeve
1.2
5
2.0
5.5
Crimping tool
Not easily pulled free
Crimped at approx. center
of metal sleeve
Conductors extended
Wire insulation recessed
more than 4 mm
1-4 (No.86730)
1.1.2 Safety Check after Servicing
Examine the area surrounding the repaired location for damage
or deterioration. Observe that screws, parts and wires have been
returned to original positions, Afterwards, perform the following
tests and confirm the specified values in order to verify compli-
ance with safety standards.
(1) Insulation resistance test
Confirm the specified insulation resistance or greater be-
tween power cord plug prongs and externally exposed
parts of the set (RF terminals, antenna terminals, video and
audio input and output terminals, microphone jacks, ear-
phone jacks, etc.).
See table 1 below.
(2) Dielectric strength test
Confirm specified dielectric strength or greater between
power cord plug prongs and exposed accessible parts of
the set (RF terminals, antenna terminals, video and audio
input and output terminals, microphone jacks, earphone
jacks, etc.). See Fig.1-1-11 below.
(3) Clearance distance
When replacing primary circuit components, confirm spec-
ified clearance distance (d), (d') between soldered termi-
nals, and between terminals and surrounding metallic
parts. See Fig.1-1-11 below.
Fig.1-1-8
(4) Leakage current test
Confirm specified or lower leakage current between earth
ground/power cord plug prongs and externally exposed ac-
cessible parts (RF terminals, antenna terminals, video and
audio input and output terminals, microphone jacks, ear-
phone jacks, etc.).
Measuring Method : (Power ON)
Insert load Z between earth ground/power cord plug
prongs and externally exposed accessible parts. Use an
AC voltmeter to measure across both terminals of load Z.
See Fig.1-1-9 and following Fig.1-1-12.
Fig.1-1-9
(5) Grounding (Class 1 model only)
Confirm specified or lower grounding impedance between
earth pin in AC inlet and externally exposed accessible
parts (Video in, Video out, Audio in, Audio out or Fixing
screw etc.).
Measuring Method:
Connect milli ohm meter between earth pin in AC inlet and
exposed accessible parts. See Fig.1-1-10 and grounding
specifications.
Fig.1-1-10
Fig.1-1-11
Fig.1-1-12
NOTE :
These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
ab
c
V
A
Externally
exposed
accessible part
Z
(No.86730)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 BEFORE ASSEMBLY AND DISASSEMBLY
2.1.1 Precautions
1. Be sure to disconnect the power supply unit prior to mount-
ing and soldering of parts.
2. Prior to removing a component part that needs to disconnect
its connector(s) and its screw(s), first disconnect the wire(s)
from the connector(s), and then remove the screw(s).
3. When connecting/disconnecting wires, pay enough atten-
tion not to damage the connectors.
4. Be careful in removing or handling the part to which some
spacer or shield is attached for reinforcement or insulation.
5. When replacing chip parts (especially IC parts), first remove
the solder completely to prevent peeling of the pattern.
6. Tighten screws properly during the procedures. Unless
specified otherwise, tighten screws at a torque of
0.088N·m (0.9kgf·cm).
2.1.2 Assembly and disassembly
(1) Order of steps in Procedure
When reassembling, preform the step(s) in the reverse
order. These numbers are also used as the identification
(location) No. of parts Figures.
(2) Part to be removed or installed.
(3) Fig. No. showing Procedure or Part Location.
(4) Identification of part to be removed, unhooked, unlocked,
released, unplugged, unclamped or unsoldered.
(5) Adjustment information for installation.
2.1.3 Destination of connectors
2.1.4 Disconnection of connectors (Wires)
Pull both ends of the connector in the arrow direction, remove the
lock and disconnect the flat wire.
Fig.2-1-1
Extend the locks in the direction of the arrow for unlocking and
then pull out the wire. After removing the wire, immediately re-
store the locks to their original positions because the locks are
apt to come off the connector.
Fig.2-1-2
2.1.5 Tools required for disassembly and assembly
Fig.2-1-3
C
= CABINET
D
= CAMERA AND BOARD ASSEMBLY
P= Spring
W= Washer
S= Screw
*
= Unhook, unlock, release, unplug or unsolder.
2(S3) = 2 Screws (S3)
CN
= Connector
(4)
(5)
(2)
(3)
(1)
[Example]
TOP COVER ASSEMBLY
UPPER ASSEMBLY
(Inc. VF ASSEMBLY,
SPEAKER/MONITOR)
VF ASSEMBLY
Fig.C1
Fig.C2-1
Fig.C2-2
S1,2(L1)
S2a,2(S2b),3(S2c)
2(S2d),S2e,S2c
L2,CN2a,b
2(S8),L8,CN8a
-
-
NOTE 8a
NOTE 8b
[1]
[2]
[8]
STEP
No.
PART
NOTE
Fig.
No.
POINT
CN2a
CN2b
MAIN
CN101
MAIN
CN103
40
10
CONN.
No.
Pin No.
CONNECTOR
Remove the parts marked in
.
[Example]
Two kinds of double-arrows in connection tables respectively
show kinds of connector/wires.
: Flat wire
: Wire
MONIBW
CN761
MINIBW
CN762
Connector
Flat wire
Connector
Flat wire
Torque driver
YTU94088
1
2
3
4
Bit
YTU94088-003
Tweezers
P-895
Chip IC replacement jig
PTS40844-2
5
Cleaning cloth
KSMM-01