For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM ASSEMBLY).
NOTE :
There are two types of VF(COLOR) ASSEMBLY used for this model: S type and K type.
Prior to repair operation related to VIEW FINDER, be sure to see the VF(COLOR)
ASSEMBLY and Parts List.
Methods to distinguish the two types are as follows:
1. Distinction based on EEPROM DATA (EEPROM utility). (*1)
2. Distinction based on a part number of the MONI-C BOARD ASSEMBLY.
3. Distinction based on a sticker attached to the VF(COLOR) ASSEMBLY.
S TYPEK TYPE
EEPROM DATA (*1) ADRS 3CCH:01H ADRS 3CCH:05H
MONI-C PWB YB10447 SERIES YB10453 SERIES
VF(COLOR) ASSY NO STICKER STICKER ON TOP FACE
(*1) It is necessary to confirm the original data (before repair work) of EEPROM.
SPECIFICATION (The specifications shown pertain specifically to the model GR-D23, GR-D53, GR-D73)
1-2 (No.YF008)
SECTION 1
r
e
PRECAUTIONS
1.1SAFTY PRECAUTIONS
Prior to shipment from the factory, JVC products are strictly
inspected to conform with the recognized product safety and
electrical 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 cauti on 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
compliance 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 compon ents (transformers,
power cords, noise blocking capacitors, etc.) wrap ends of
wires securely about the terminals before soldering.
emission. Consequently, 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.Unauthorized modification can increase the
high voltage value and cause X-ray emission from the
cathode ray tube.
(12) Crimp type wire connectorIn 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 unavoidable, in order to prevent
safety hazards, perform carefully 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).
cut close to connector
Fig.1-1-3
b) Strip about 15 mm of the insulati on from the ends
of the wires. If the wires are stranded, twist the
strands to avoid frayed conductors.
15 mm
Fig.1-1-4
c) Align the lengths of the wires to be connected.
Insert the wires fully into the connector.
Metal sleeve
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.
Power cord
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
voltage circuits, and related circuits are specified for
compliance with recognized codes pertaining to X-ray
Connector
Fig.1-1-5
d) As sh ow n i n Fi g. 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.
1.2
5
2
.0
5.5
Crimping tool
Fig.1-1-6
e) Check the four points noted in Fig.1-1-7.
Not easily pulled free
Wire insulation recessed
more than 4 mm
Crimped at approx. cente
of metal sleev
Conductors extended
Fig.1-1-7
(No.YF008)1-3
1.1.2 Safety Check after Servicing
Examine the area surrounding the repaired location for d amage
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
compliance with safety standards.
(1) Insulation resistance test
Confirm the specified insulation resistance or greater
between power cord plug prongs and externally exposed
parts of the set (RF terminals, antenna terminals, video and
audio input and output terminals, microphone jacks,
earphone 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
specified clearance distance (d), (d') between soldered
terminals, and between terminals and surrounding metallic
parts. See Fig.1-1-11 below.
d
Chassis
d'
Power cord
primary wire
Fig.1-1-8
(4) Leakage current test
Confirm specified or lower leakage current between earth
ground/power cord plug prongs and externally exposed
accessible parts (RF terminals, antenna terminals, video
and audio input and output terminals, microphone jacks,
earphone 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.
ab
Externally
exposed
accessible part
Z
V
c
A
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.
AC inlet
Earth pin
Exposed accessible part
MIlli ohm meter
Grounding Specifications
Region
USA & Canada
Europe & Australia
Grounding Impedance (Z
Z0.1 ohm
Z0.5 ohm
)
Fig.1-1-10
AC Line Voltage
100 V
100 to 240 V
110 to 130 V
110 to 130 V
200 to 240 V
Region
Japan
USA & Canada
Europe & Australia
Insulation Resistance (R
R 1 M /500 V DC
1 M R 12 M /500 V DC
R 10 M /500 V DC
)
Dielectric Strength
AC 1 kV 1 minute
AC 1.5 kV 1 minute
AC 1 kV 1 minute
AC 3 kV 1 minute
AC 1.5 kV 1 minute
(
Class
(
Class
Clearance Distance (d), (d'
d, d' 3 mm
d, d' 4 mm
d, d' 3.2 mm
d 4 mm
)
d' 8 mm (Power cord
d' 6 mm (Primary wire
)
Fig.1-1-11
AC Line Voltage
100 V
110 to 130 V
110 to 130 V
220 to 240 V
Region
Japan
USA & Canada
Europe & Australia
Load Z
1
0.15
1.5
2
50
Leakage Current (i)
i 1 mA rms
i 0.5 mA rms
i 0.7 mA peak
i 2 mA dc
i 0.7 mA peak
i 2 mA dc
a, b, c
Exposed accessible parts
Exposed accessible parts
Antenna earth terminals
Other terminals
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.
)
)
)
1-4 (No.YF008)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
The following table indicate main different points between models GR-D23EK, GR-D23EX, GR-D23EY, GR-D23EZ, GR-D33EK,
GR-D53EK, GR-D53EX, GR-D53EY, GR-D53EZ, GR-D73EK, GR-D73EX, GR-D73EY and GR-D73EZ.
MODELGR-D23EKGR-D23EXGR-D23EYG R-D23EZGR-D33EK
DV TERMINALYES(OUT)YES(OUT)YES(OUT)YES(OUT)YES(IN/OUT)
ANALOG INPUTNONONONONO
REMOTE CONTROLNONONONONO
AC CORDBS PULGCEE PULGCEE PULGCEE PULGBS PULG
USB CABLENONONONONO
MEMORY CARDNONONONONO
CD-ROMNONONONOYES
DV TERMINALYES(IN/OUT) YES(IN/OUT) YES(IN/OUT) YES(IN/OUT) YES(IN/OUT) YES(IN/OUT) YES(IN/OUT) YES(IN/OUT)
ANALOG INPUTYESYESYESYESYESYESYESYES
REMOTE CONTROLRM-V718URM-V718URM-V718URM-V718URM-V718URM-V718URM-V718URM-V718U
AC CORDBS PULGCEE PULGCEE PULGCEE PULGBS PULGCEE PULGCEE PULGCEE PULG
USB CABLEYESYESYESYESYESYESYESYES
MEMORY CARDNONONONO
CD-ROMYESYESYESYESYESYESYESYES
YES(MMC8MB) YES(MMC8MB) YES(MMC8MB) YES(MMC8MB)
(No.YF008)1-5
SECTION 3
DISASSEMBLY
3.1BEFORE ASSEMBLY AND DISASSEMBLY
3.1.1 Precautions
• Be sure to disconnect the power supply unit prior to mounting
and soldering of parts.
• 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).
• When connecting/disconnecting wires, pay enough attention
not to damage the connectors.
• When inserting the flat wire to the connector, pay attention to
the direction of the flat wire.
• Be careful in removing the parts to which some spacer or
shield is attached for reinforcement or insulation.
• When replacing chip parts (especially IC parts), first remove
the solder completely to prevent peeling of the pattern.
• Tighten screws properly during the procedures. Unless
specified otherwise, tighten screws at a torque of 0.118N
·cm). However, 0.118N·m (1.2kgf·cm) is a value at the
(1.2kgf
time of production. At the time of service, perform the
procedure at a torque 10% less than 0.118N
·m (1.2kgf·cm).
(See "SERVICE NOTE" as for tightening torque.)
3.1.2 Destination of connectors
Two kinds of double-arrows in connection tables respectively
show kinds of connector/wires.
: Wire: Flat wire: Board to board (B-B)
: The connector of the side to remove
CONN. No.PIN No.CONNECTOR
CN2a
CN2b
MAIN CN101
MAIN CN103
MONI/ BW CN761
MIC CN762
3.1.3 Disconnection of connectors (Wires)
Wire
· Pull both ends of the connector in the arrow
direction, remove the lock and disconnect the flat
wire.
B-B Connector
B-B Connector
· Pull the both ends of the board in the direction of the arrow, and remove the B-B Connector.
FPC Connector
· Extend the locks in the direction of the arrow for
unlocking and then pull out the wire. After
removing the wire, immediately restore the locks
to their original positions because the locks are
apt to come off the connector.
Wire
FPC Connector
Lock
B-B Connector
Fig.3-1-1
3.1.4 Tools required for disassembly and assembly
Torque driver
YTU94088
Chip IC replacement jig
PTS40844-2
Bit
YTU94088-003
Cleaning cloth
KSMM-01
Tweezers
P-895
·m
40
2
• Torque driver
Be sure to use to fastening the mechanism and exterior parts
because those parts must strictly be controlled for tightening
torque.
• Bit
This bit is slightly longer than those set in conventional torque
drivers.
• Tweezers
To be used for removing and installing parts and wires.
• Chip IC replacement jig
To be used for replacement of IC.
• Cleaning cloth
Recommended cleaning cloth to wipe down the video heads,
mechanism (tape transport system), optical lens surface.
3.2ASSEMBLY AND DISASSEMBLY OF MAIN PARTS
3.2.1 Assembly and disassembly
When reassembling, perform the step(s) in reverse order.
Be careful not to cut the FPC.
Be careful about the engagement of the wire.
NOTE8:
Be careful not to cut the FPC.
Be careful about the engagement of the wire.
NOTE9:
For the disassembly procedure of the OP BLOCK ASSEMBLY, see "3.2.4 ASSEMBLY/DISASSEMBLY OF [9] OP
BLOCK ASSMBLY/CCD BOARD ASSEMBLY"
NOTE10:
Be careful not to cut the FPC.
NOTE11:
When removing/attaching the SHIELD COVER, be careful
not to damage the FPC.
NOTE12:
When removing/attaching the BRACKET (MECHA) ASSEMBLY, be careful not to damage the FPC.
-
-
-
NOTE4
NOTE6
NOTE7
NOTE8
NOTE9
NOTE10
NOTE11
NOTE12
-
NOTE17
NOTE15a:
Be careful not to cut the FPC.
NOTE15b:
For the disassembly/assembly procedure of the MONITOR
ASSEMBLY, see "3.2.3 DISASSEMBLY/ASSEMBLY OF
[15] MONITOR ASSEMBLY"
NOTE16a:
Wires for the SPEAKER are soldered, and the BRACKET(SPK) fixes the SPEAKER. Therefore, prior to removing
the MONI-C BOARD ASSEMBLY, unsolder the soldered
points (SD16) so that the wires moves easily.
NOTE16b:
When attaching the MONI-C BOARD ASSEMBLY, be careful of the position of the KNOB(SLIDE) and the SWITCH of
the BOARD.
NOTE17:
Be careful about the engagement of the wire.
zDestination of connectors
CN.NO.
CN4a MAIN CN101 MONI-C CN7614 40
CN4b MAIN CN103 MONI-C CN762 10
CN7a MAIN CN104
CN7b MAIN CN112
CN8a MAIN CN102 FRONT CN9001 6
CN8b MAIN CN106 MIC - 4
CN8c MAIN CN109 ZOOM UNIT - 16
CN9a MAIN CN108 OP BLOCK ASSY - 24
CN9b MAIN CN107 CCD CN5001 16
CN10a MAIN CN110 PREMDA CN408 40
CN10b MAIN CN111 PREMDA CN401 40
CN11a PREMDA CN406 SENSOR - 16
CN11b PREMDA CN405 CAPSTAN MOTOR - 18
CN11c PREMDA CN404 DRUM MOTOR CN901 11
CN11d PREMDA CN402 HEAD - 8
CN11e PREMDA CN403 LOADING MOTOR - 6
CN11f PREMDA CN407 ROTARY ENCODER - 6
CN13 MONI-C CN765 MONITOR ASSY - 32
CN15 MONI-C CN763 VF ASSY CN7001 18
For the disassembly/assembly procedure of the MECHANISM ASSEMBLY, see the Service Manual "DVC MECHANISM (No.86700)."
NOTE13a:
Remove the SHEET and the screw if necessary.
NOTE13b:
For the disassembly/assembly procedure of the VF ASSEMBLY, see "3.2.5 DISASSEMBLY/ASSEMBLY OF [13] VF
ASSEMBLY"
CONNECTOR
REAR UNIT ASSY
REAR UNIT ASSY
PIN
NO.
CN408 8
CN401 12
(No.YF008)1-7
L1
[1]
Fig.C1
L3
c
[3]
3
(S3b)
b
2
c
(S3a)
b
(S2)
1
[2]
CN4a
CN4b
<NOTE4>
(S4b)
[4]
7
8
(S4b)
10
(S4d)
Fig.C2
11
(S4a)
9
(S4c)
4
(S4a)
5
(S4a)
6
(S4b)
1-8 (No.YF008)
[5]
L5
<NOTE8>
[8]
16
(S8)
g
17
(S8)
h
18
(S8)
19
(S8)
h
CN8c
f
L8
g
f
L6a
Fig.C3
CN7b
L7a
12
(S5)
FPC
<NOTE7>
13
(S5)
L8
CN9a
i
CN8a
CN9b
j
Fig.C5
CN8b
i
20
(S8)
L9b
j
21
(S8)
[6]
L6b
k
14
(S6)
<NOTE6>
Fig.C4
b
L9a
a
Fig.C6
22
(S9)
a
CN7a
k
L7b
[7]
15
(S7)
23
(S9)
[9]
<NOTE9>
b
(No.YF008)1-9
25
(S10b)
L10
CN10b
24
(S10a)
SHIELD COVER
L10
Fig.C7
CN10a
[10]
<NOTE10>
[12]
<NOTE12>
BKT(MECHA)ASS'Y
CN11d
CN11b
CN11c
32
(S12)
[11]
1-10 (No.YF008)
L11
26
(S11a)
27
(S11a)
Fig.C8
CN11a
31
(S12)
30
(S12)
28
(S11b)
CN11f
:0.068N.m (0.7kgf.cm)
:0.078N
29
(S11b)
.
m (0.8kgf.cm)
CN11e
CN13
l
L13
(S15b)
41
(S15b)
b
40
a
CN15
<NOTE15a>
SHEET
<NOTE13a>
[14]
g
36
(S14b)
(S14b)
h
f
Fig.C9
37
[13]
<NOTE13b>
(S13b)
g
l
33
(S13a)
34
a
38
(S15a)
f
[15]
<NOTE15b>
Fig.C11
KNOB(SLIDE)
<NOTE16b>
39
b
(S15a)
:0.147N.m (1.5kgf.cm)
35
(S14a)
i
h
c
L16
d
e
[16]
<NOTE16a>
SD16
c
42
(S16a)
i
d
43
(S16b)
e
44
(S16b)
Fig.10
Fig.C12
(No.YF008)1-11
<NOTE17>
[17]
BKT(SPK)
BKT(HINGE)
a
48
(S17a)
49
(S17a)
45
(S17a)
a
46
(S17a)
47
(S17b)
Fig.13
1-12 (No.YF008)
3.2.3 DISASSEMBLY/ASSEMBLY OF [15] MONITOR ASSEMBLY
zCAUTION
(1) During the procedure, be careful in handling the LCD
MODULE,etc., especially not to damage or soil the monitor screen. If it is soiled with fingerprints, etc., gently
clean it with chamois or the cleaning cloth.
(2) Since the BACKLIGHT is soldered to the ASSEMBLY
BOARD, the BACKLIGHT should not be separated from
the ASSEMBLY BOARD except when replacing the
BACKLIGHT.
zDisassembly procedure of MONITOR ASSEMBLY
(1) While removing the 4 screws (1-4) in numerical order
and disengaging the 6 hooks (L15a-L15f) in alphabetical
order, remove the MONITOR COVER ASSY.
(2) Remove the SENSOR BOARD ASSEMBLY from the
MONITOR CASE.
(3) Remove the FPC in CN15a and CN15b in alphabeti cal
order, and remove the MONITOR HINGE ASSEMBLY.
(4) Remove the FPC of LCD MODULE from 1 connector
CN15c.
(5) Remove 1 screw (5), and remove the BL BOARD AS-
SEMBLY together with the BACKLIGHT.
(6) Remove the SHEET (DIFF.).
(7) Remove the LCD FRAME.
(8) Remove the LCD MODULE.
(9) Remove the SHIELD CASE.
(S15a)
(S15b)
MONITOR HINGE
ASSEMBLY
SENSOR BOARD
ASSEMBLY
3
1
L15a
(S15a)
(S15b)
b
L15e
2
L15d
4
CN15a
CN15b
a
SD15a
L15e
MONITOR COVER
ASSEMBLY
L15f
L15c
L15b
BL2.5
BOARD ASSEMBLY
5
(S15a)
SD15b
b
c
CN15c
BACK LIGHT
:0.078N.m (0.8kgf.cm)
.
:0.246N
m (2.5kgf.cm)
SHEET(DIFF)
LCD FRAME
LCD MODULE
c
SHIELD CASE
L15f
a
MONITOR CASE
L15g
Fig.3-2-3
(No.YF008)1-13
3.2.4 ASSEMBLY/DISASSEMBLY OF [9] OP BLOCK ASSMBLY/CCD BOARD ASSEMBLY
zCAUTIONS
(1) During the procedure, be careful in handling the CCD IM-
AGE SENSOR, the OP LPF, and the LENS etc., especially not to damage or soil their surface.
If it is soiled with fingerprints, etc., gently clean it with
chamois or the cleaning cloth.
(2) When the unit is shipped from the factory, a protection
seal is sometimes applied onto the transparent glass of
the CCD IMAGE SENSOR. Leave the protection seal as
it is, and take it off just before assembling the CCD IMAGE SENSOR to the OP BLOCK ASSEMBLY.
zDisassembly procedure of OP BLOCK ASSEMBLY/CCD
BOARD ASSEMBLY
(1) Unsolder the 14 sol dered points (SD 9), and remove the
CCD BOARD ASSEMBLY.
(2) Remove the 2 screws (1 and 2), and remove the CCD
BASE ASSEMBLY.
NOTE 9a:
When removing the CCD BASE ASSEMBLY, be careful not
to lose or damage the SPACER or the OP LPF because they
may be removed together with the CCD IMAGE SENSOR.
NOTE 9b:
In replacing the CCD IMAGE SENSOR, don't remove the
CCD IMAGE SENSOR from the CCD BASE ASSEMBLY.
zAssembly procedure of OP BLOCK ASSEMBLY/CCD
BOARD ASSEMBLY
(1) Attach the OP LPF, the SHEET, and the SPACER to the
OP BLOCK ASSEMBLY in this order.
(2) Attach the CCD BASE ASSEMBLY so that the spacer is
not shifted, and tighten the CCD BASE ASSEMBLY with
the 2 screws (1 and 2).
(3) Insert the CCD BOARD ASSEMBLY to the CCD BASE
ASSEMBLY, and solder the 14 points (SD2).
zReplacement of service repair parts
Service repair parts of the OP BLOCK ASSEMBLY are as follows.
When replacing the parts, be careful not to cut or damage the
FPC, and not to damage the parts due to soldering (overheat).
(1) Focus motor
(2) Zoom motor
(3) Iris motor unit
NOTE 9c:
To solder the FPC, lift the FPC approx.1mm away from the
jack when replacing the FOCUS MOTOR or the ZOOM MOTOR.
NOTE 9d:
The IRIS MOTOR UNIT contains the FPC ASSEMBLY and
the SENSOR ×2.
Instead, replace the whole CCD BASE ASSEMBLY.
(S9c)
8
(S9c)
SENSOR
1
11
9
(S9b)
(S9b)
7
IRIS MOTOR UNIT
<NOTE 9c, d>
10
(S9b)
5
(S9b)
OP BLOCK
6
(S9b)
FOCUS MOTOR
<NOTE 9c>
(S9b)
OP LPF
Blue
OP
side
(S9b)
3
CCD
side
OP LPF
4
ZOOM MOTOR
<NOTE 9c>
CCD BOARD ASSEMBLY
SD9
<NOTE 9a, b>
CCD BASE ASSEMBLY
SPACER
SHEET
0.078N.m (0.8kgf.cm)
0.118N
.
m (1.2kgf.cm)
(S9a)
2
(S9a)
Fig.3-2-4
1-14 (No.YF008)
3.2.5 DISASSEMBLY/ASSEMBLY OF [13] VF ASSEMBLY
• When replacing the VF FPC ASSEMBLY, first remove the exterior parts of the VF ASSEMBLY (UPPER CASE(VF) and
BOTTOM CASE(VF)). And then, remove the CONNECTOR
from the BOARD ASSEMBLY. If you remove the CONNECTOR first, the FPC may be cut or the SWITCH may be damaged.
NOTE :
There are two types of VF(COLOR) ASSEMBLY used for this
model: S type and K type.
For methods to distinguish the two types, see Cover Page.
zDisassembly of VF ASSEMBLY
(1) Remove the 2 screws (1 and 2), and remove the EYE
CUP.
(2) Remove the FPC attached to the BRACKET(VF).
(3) Remove the 3 screws (3-5). Pull the BRACKET(VF), and
remove the 2 screws (6 and 7). Then, remove the
BRACKET(VF) from the FPC.
NOTE13a:
During the procedure, be careful no t to cut th e FPC.
(4) Pull the UPPER CASE(VF)/BOTTOM CASE(VF) from
the HOLDER(VF) from FPC side, and remove the UP-
PER CASE(VF)/BOTTOM CASE(VF).
(5) Remove the 4 screws (8-11), an d remove the BOTTOM
CASE(VF) so that the BOTTOM CASE(VF) is facing upward.
NOTE13b:
During the operation, be careful of the LEVER (LENS).
Especially, during the attachment procedure, be careful of the attachment position so that there is nothing
wrong with sliding operation of the LENS ASSEMBLY.
(6) Remove the GUIDE LENS/LENS ASSEMBLY and the
LCD UNIT from the UPPER CASE(VF) if necessary.
zDisassembly of GUIDE LENS/LENS ASSEMBLY
(1) Remove the SHEET (LENS) from the GUIDE LENS(VF).
(2) Remove the LENS ASSEMBLY from the GUIDE
LENS(VF).
NOTE13c:
During the procedure, be careful not to damage or soil
the LENS.
NOTE13d:
Be careful not to lose the SPRING (LENS).
EYE CUP
(S13a)
LENS ASSEMBLY
SHEET(LENS)
HOLDER(VF)
3
(S13b)
a
5
(S13c)
1
2
(S13a)
<NO
TE 13c>
GUIDE LENS(VF)
b
4
(S13b)
UPPER CASE(VF)
SPRING(LENS)
<NO
TE 13d>
LCD UNIT(COVER)ASSEMBLY
c
LEVER(LENS)
<NO
TE 13b>
BOTTOM CASE(VF)
F2
F1
a
(S TYPE)
F2
6
(S13b)
c
9 (S13d)
8 (S13d)
10 (S13e)
F2
F1
7
(S13b)
FPC
<NO
b
BRACKET(VF)
C-VF
BOARD
ASSEMBLY
[0][7]
(K TYPE)
TE 13a>
Fig.3-2-5
11
(S13d)
:0.068N.m (0.7kgf.cm)
(No.YF008)1-15
SECTION 4
ADJUSTMENT
4.1PREPARATION
4.1.1 Precaution
Camera system and deck system of this model are specially
adjusted by using PC.
However, if parts such as the following are replaced, an
adjustment is required. The adjustment must be performed in a
Service Center equipped with the concerned facilities.
• OP BLOCK ASSEMBLY
• EEP ROM (IC1005 of MAIN board)
In the event of malfunction with electrical circuits, first find a
defective portion with the aid of proper test instruments as shown
in the following electrical adjustment procedure, and then
commence necessary repair/ replacement/adjustment.
• In observing chip TP, use IC clips, etc. to avoid any stress.
Prior to replacement of chip parts (especially IC), remove the
solder completely to prevent peeling of the pattern.
• Use a patch cord if necessary. As for a patch cord, see the
BOARD INTERCONNECTIONS.
• Since connectors are fragile, carefully handle them in
disconnecting and connecting the FPC.
4.1.2 REQUIRED TEST EQUIPMENT
• Personal computer (for Windows)
• Color TV monitor
• Oscilloscope (dual-trace type, observable 100MHz or higher
frequency). The one observable 300 MHz or higher frequency
is recommended.
• Digital voltmeter
• DC power supply or AC adapter
• Frequency counter (with threshold level adjuster)
4.1.3 TOOLS REQUIRED FOR ADJUSTMENT
Torque Driver
YTU94088
Chip IC Replacement Jig
PTS40844-2
INF Adjustment Lens
YTU92001B
Light box Assembly
YTU93096A
Alignment Tape
MC-2
INF Adjustment Lens Holder
Bit
YTU94088-003
Cleaning Cloth
KSMM-01
YTU94087
Gray Scale Chart
YTU94133A
PC Cable
QAM0099-005
Guide Driver (Hexagonal)
Camera Stand
YTU93079
Color Bar Chart
YTU94133C
Communication Cable
YTU93107A
Tweezers
P-895
D-770-1.27
1-16 (No.YF008)
Service Support System
YTU94057-76
Jig Connector Cable
YTU93082C
• Torque driver
Be sure to use to fastening the mechanism and exterior parts
because those parts must strictly be controlled for tightening
torque.
• Bit
This bit is slightly longer than those set in conventional torque
drivers.
• Tweezers
To be used for removing and installing parts and wires.
• Chip IC replacement jig
To be used for adjustment of the camera system.
• Cleaning cloth
Recommended the Cleaning cloth to wipe down the video
heads, mechanism (tape transport system), optical lens surface.
• Guide driver (Hexagonal)
To be used to turn the guide roller to adjustment of the linarity
of playback envelope.
• INF adjustment lens
To be used for adjustment of the camera system. For the
usage of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
• INF lens holder
To be used together with the Camera stand for operating the
Videocamera in the stripped-down condition such as the status without the exterior parts or for using commodities that are
not yet conformable to the interchangeable ring. For the usage
of the INF lens holder, refer to the Service Bulletin No. YA-SB-
10035.
• Camera stand
To be used together with the INF adjustment lens holder. For
the usage of the Camera stand, refer to the Service Bulletin
No. YA-SB-10035.
• Light box assembly
To be used for adjustment of the camera system. For the
usage of the Light box assembly, refer to the Service Bulletin
No. YA-SB-10035.
• Gray scale chart
To be used for adjustment of the camera system. For the
usage of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
• Color bar chart
To be used for adjustment of the camera system. For the
usage of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
• Alignment tape
To be used for check and adjustment of interchangeability of
the mechanism.
• PC cable
To be used to connect the Videocamera and a personal computer
with each other when a personal computer issued for adjustment.
• Communication cable
Connect the Communication cable between the PC cable and
Jig connector cable when performing a PC adjustment.
• Service support system
To be used for adjustment with a personal computer. Software
can be downloaded also from JS-net.
• Jig connector cable
Connected to JIG CONNECTOR of the main board and used
for electrical adjustment, etc.
4.2JIG CONNECTOR CABLE CONNECTION
NOTE:
In the case of jig connector cable use, since you cannot perform supply from DC jack, use a battery terminal.
Connection procedure
GUIDE ROLLER (TU)
GUIDE ROLLER (SUP)
COVER (JIG)
SCREW
JIG CONNECTOR CABLE
COMMUNICATION CABLE
TO JLIP_RX
TO JLIP_TX
TO GND
WHITE
BLACK
FOR
COMMUNICATION CABLE
COMMUNICATION CABLEJIG CONNECTOROSCILLOSCOPEJIG CONNECTOR
Prior to the adjustment, remove the cover (ADJUST).
(1) Play back the compatibility adjustment tape.
(2) While triggering the HID1, observe the waveform of
ENV_OUT.
(3) Set the manual tracking mode (ATF OFF).
(4) Confirm that the waveform is entirely paral lel and straight,
and free from remarkable level-down, through th e tracking
operation.
Make the confirmation as follows if necessary.
(5) If level-down is observed on the left hand side of the
waveform, straighten the level by turning the GUIDE
ROLLER (SUP).
If level-down is observed on the right hand side of the
waveform, straighten the
level by turning the GUIDE ROLLER (TU).
(6) After the adjustment, try the u nloading motion once, and
confirm that the waveform is flat when the tape has been
played back again.
(7) Play back the self-recording.
(8) Confirm that the waveform is flat.
Flatten the waveform.
Misalignment of guide
roller height on the
supply side
Misalignment of guide roller
height on the take-up side
Fig.4-3-1
ENV_OUT
HID1
Fig.4-3-2
4.4ELECTRICAL ADJUSTMENT
Electrical adjustment is performed by using a personal computer
and software for SERVICE SUPPORT SYSTEM. Read
README.TXT file to use the software properly.
As for the connection of cables, see "4.2 JIG CONNECTOR
CABLE CONNECTION".
1-18 (No.YF008)
5.1SERVICE NOTE
SECTION 5
TROUBLE SHOOTING
[10]
[9]
C7C6
C5
C3C4
[16][17]
C12C13
**
C11C10C8C9
[15]
MONITOR ASSEMBLY
Place to stick screw
Screw tightening torque
Removing order of screw
Reference drawing (Fig.No.)
cm)
cm)
.
.
m (0.8kgf
m (1.2kgf
.
.
: 0.118N
: 0.078N
cm)
cm)
.
.
m (0.7kgf
m (2.5kgf
.
.
[14][11]
[4][5][8]
[3]
C1C2
-12345678910111213141516171819202122232425
-
[1][2][6][7]
CABINET PARTS AND ELECTRICAL PARTS
Symbol No.
Place to stick screw
Screw tightening torque
Removing order of screw
Reference drawing (Fig.No.)
[13][15]
[12]
262728293031323334353637383940414243444546474849
CABINET PARTS AND ELECTRICAL PARTS
Symbol No.
Place to stick screw
Screw tightening torque
Removing order of screw
Reference drawing (Fig.No.)
[13]
VF ASSEMBLY
**
3-2-53-2-3
123456789101112345
Place to stick screw
Screw tightening torque
Removing order of screw
Reference drawing (Fig.No.)
[9]
1234567891011
OP BLOCK ASSEMBLY
Removing order of screw
3-2-4
Place to stick screw
Screw tightening torque
Reference drawing (Fig.No.)
: 0.246N
: 0.068N
cm)
cm)
.
.
m (0.9kgf
m (2.5kgf
.
.
: 0.088N
: 0.246N
1) * : Don't reuse the screw, because screw lock bond was applied to them.
2) Pay careful attention to tightening torque for each screw.
NOTE:
(No.YF008)1-19
5.2TAKE OUT CASSETTE TAPE
(1) Remove the Power Unit (battery or DC code) from the set.
(2) Remove 1 screw, and remove a plate (ADJ).
NOTE:
For more efficient operation, loosen and move the grip
belt prior to the procedure (2).
(3) Open the CASSETTE COVER till it is completely opened
and fixed.
(4) Attach a PVC tape as shown in the figure.
NOTE:
Be careful of cassette tape damage caused because the
CASSETTE HOUSING ASSEMBLY is moved upward at
the unloading end (EJECT mode).
(5) To set the SLIDE DECK ASSEMBLY to the unloading end,
apply DC 3V to the electrode (terminal) on the top surface
of the LOADING MOTOR ASSEMBLY that is seen through
a hole under the plate removed in the procedure (2).
NOTE:
Be careful not to attach grease or a similar substance to
the surface of the cassette tape on the tape transport
system.
(6) Wind the cassette tape by directly turning the REEL DISK
ASSEMBLY (SUP) from the backside of the SLIDE DECK
ASSEMBLY by using a sharp tool (Chip IC replacement
tool).
(7) Confirm that the cassette tape is completely wound, and
then peel off the PVC tape from the CASSETTE HOUSING
ASSEMBLY and take out the cassette tape.
NOTE:
To confirm that the cassette tape is completely wound,
confirm that one REEL DISK ASSEMBLY (TU) rotates
as you rotate the other REEL DISK ASSEMBLY (SUP).
(8) Make sure that grease or a similar substance is not
attached to the surface of the tape taken out in the
procedure (7). Similarly, also make sure that grease or a
similar substance is not attached on the MECHANISM
ASSEMBLY, especially the tape transport system.
(DC3V)
LOADING MOTOR
ASSEMBLY
SLIDE DECK
ASSEMBLY
CASSETTE COVER
TAPE
CASSETTE HOUSING
ASSEMBLY
REEL DISK
ASSEMBLY (SUP)
Fig.5-2-1
1-20 (No.YF008)
5.3EMERGENCY DISPLAY
Example (in case of the error number E01):
Whenever some abnormal signal is input to the syscon CPU, an
error number (E01, as an example) is displayed on the LCD
monitor or (in the electronic view finder).In every error status,
such the message as shown below alter nately appear over and
E01
UNIT IN
SAFEGUARD MODE
E01
REMOVE AND
REATTACH BATTERY
over.
• In an emergency mode, all operations except turning on/off the
POWER switch are ineffectual.
LCD displayEmergencymodeDetailsPossible cause
E01LOADINGIn the case the encoder position is
not shifted to the next point though
the loading motor has rotated in the
loading direction for 4 seconds or
more. This error is defined as [E01].
E02UNLOADINGIn the case the encoder position is
not shifted to the next point though
the loading motor has rotated in the
unloading direction for 4 seconds or
1. The mechanism is locked during mode shift.
2. The mechanism is locked at the mechanism loading end,
because the encoder position is skipped during
mechanism mode shift.
3. No power is supplied to the loading MDA.
1. The mechanism is locked during mode shift.
2. The mechanism is locked at the mechanism loading end,
because the encoder position is skipped during
mechanism mode shift.
more. This error is defined as [E02].
E03TU & SUP REEL FG In the case no REEL FG is
produced for seconds shown in the
table below or more in the capstan
rotation mode after loading was
complete, the mechanism mode is
shifted to STOP with the pinch roller
set off. This error is defined as
[E03].However, no REEL EMG is
detected in the SLW/STILL mode.
REEL(SUP) REEL(TU)
PB/REC
S-FWD
S-REW
FF
REW
3 SEC
3 SEC
0.3 SEC
3 SEC
0.1 SEC
3 SEC
0.3 SEC
3 SEC
0.1 SEC
3 SEC
E04DRUM FGIn the case there is no DRUM FG
input in the drum rotation mode for
4 seconds or more. This error is
defined as [E04], and the
mechanism mode is shifted to
STOP with the pinch roller set off.
1. The idler gear does not engage with the reel disk well.
2. Though the idler gear and reel disk are engaged with
each other, the tape is not wound because of overload
to the mechanism.
3. No FG pulse is output from the reel sensor.
4. No power is supplied to the reel sensor.
5. Tape transport operation takes place with a cassette
having no tape inside.
6. The tape slackens and no pulse is produced until the
slack is taken up and the tape comes into the normal
status.
1. The drum cannot be started or drum rotation is stopped
because tape transport load is too high.
1) Tape tension is extremely high.
2) The tape is damaged or soiled with grease, etc.
2. The DRUM FG signal is not received by the syscon CPU.
1) Disconnection in the middle of the signal line.
2) Failure of the DRUM FG pulse generator (hall
element).
3. No drum control voltage is supplied to the MDA.
4. No power is supplied to the DRUM MDA.
E05--E06CAPSTAN FGIn the case no CAPSTAN FG is
produced in the capstan rotation
mode for 2 seconds or more. This
error is defined as [E06], and the
mechanism mode is shifted to
STOP with the pinch roller set
off.However, no CAPSTAN EMG is
detected in the STILL/FF/REW
mode.
1. The CAPSTAN FG signal is not received by the syscon
CPU.
1) Disconnection in the middle of the signal line.
2) Failure of the CAPSTAN FG pulse generator (MR
element).
2. No capstan control voltage is supplied to the MDA.
3. The capstan cannot be started or capstan rotation is
stopped because tape transport load is too high.
1) Tape tension is extremely high. (Mechanical locking)
2) The tape is damaged or soiled with grease, etc. (Tape
tangling occurs, etc.)
Fig.5-3-1
(No.YF008)1-21
VICTOR COMPANY OF JAPAN, LIMITED
AV & MULTIMEDIA COMPANY CAMCORDER CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan
(No.YF008)
Printed in Japan
WPC
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