JVC GR-D23EK User manual

SERVICE MANUAL
COPYRIGHT © 2004 VICTOR COMPANY OF JAPAN, LIMITED No.YF008
2004/1
DIGITAL VIDEO CAMERA
YF00820041
GR-D23EK, GR-D23EX, GR-D23EY, GR-D23EZ,
GR-D33EK, GR-D53EK, GR-D53EX,
GR-D53EY, GR-D53EZ, GR-D73EK,
GR-D73EX, GR-D73EY, GR-D73EZ
TABLE OF CONTENTS
1 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
For disassembling and assembling of MECHANISMASSEMBLY, refer to the SERVICE MANUALNo.86700 (MECHANISM ASSEMBLY).
GR-D23EK,GR-D23EX,GR-D23EY,GR-D23EZ[M4D1S2],GR-D33EK[M4D1S3]
GR-D53EK,GR-D53EX,GR-D53EY,GR-D53EZ[M4D1S5]
GR-D73EK,GR-D73EX,GR-D73EY,GR-D73EZ[M4D1S7]
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 TYPE K 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
STICKER
VF(COLOR) ASSEMBLY
(*1) It is necessary to confirm the original data (before repair work) of EEPROM.

1-2 (No.YF008)
SPECIFICATION (The specifications shown pertain specifically to the model GR-D23, GR-D53, GR-D73)

(No.YF008)1-3
SECTION 1
PRECAUTIONS
1.1 SAFTY 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 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
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 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
voltage circuits, and related circuits are specified for
compliance with recognized codes pertaining to X-ray
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).
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) AsshowninFig.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
1.25
2.0
5.5
Crimping tool
Not easily pulled free Crimped at approx. cente
r
of metal sleev
e
Conductors extended
Wire insulation recessed
more than 4 mm

1-4 (No.YF008)
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
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.
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.
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.
Chassis Power cord
primary wire
d'
d
ab
c
VA
Externally
exposed
accessible part
Z
Exposed accessible part
Grounding Specifications
AC inlet
Region
USA & Canada
Europe & Australia
Grounding Impedance (Z)
Z 0.1 ohm
Z 0.5 ohm
Earth pin
MIlli ohm meter
AC Line Voltage Region
Japan
Europe & Australia
R 1 M /500 V DC
USA & Canada 1 M R 12 M /500 V DC
R 10 M /500 V DC
Insulation Resistance (R)Dielectric Strength ClearanceDistance (d), (d')
100 V
100 to 240 V
110 to 130 V
110 to 130 V
200 to 240 V
AC 1 kV 1 minute
AC 1.5 kV 1 minute
AC 1 kV 1 minute
(Class )
(Class )
AC 3 kV 1 minute
AC 1.5 kV 1 minute
d, d' 3 mm
d, d' 4 mm
d, d' 3.2 mm
d' 8 mm (Power cord)
d' 6 mm (Primary wire)
d 4 mm
AC Line Voltage Region
Japan
Europe & Australia
USA & Canada
Load Z Leakage Current (i) a, b, c
100 V
110 to 130 V
110 to 130 V
220 to 240 V
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
Exposed accessible parts
Exposed accessible parts
Antenna earth terminals
Other terminals
1
1.5
2
50
0.15

(No.YF008)1-5
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.
MODEL GR-D23EK GR-D23EX GR-D23EY GR-D23EZ GR-D33EK
DV TERMINAL YES(OUT) YES(OUT) YES(OUT) YES(OUT) YES(IN/OUT)
ANALOG INPUT NO NO NO NO NO
REMOTE CONTROL NO NO NO NO NO
AC CORD BS PULG CEE PULG CEE PULG CEE PULG BS PULG
USB CABLE NO NO NO NO NO
MEMORY CARD NO NO NO NO NO
CD-ROM NO NO NO NO YES
MODEL GR-D53EK GR-D53EX GR-D53EY GR-D53EZ GR-D73EK GR-D73EX GR-D73EY GR-D73EZ
DV TERMINAL YES(IN/OUT) YES(IN/OUT) YES(IN/OUT) YES(IN/OUT) YES(IN/OUT) YES(IN/OUT) YES(IN/OUT) YES(IN/OUT)
ANALOG INPUT YES YES YES YES YES YES YES YES
REMOTE CONTROL RM-V718U RM-V718U RM-V718U RM-V718U RM-V718U RM-V718U RM-V718U RM-V718U
AC CORD BS PULG CEE PULG CEE PULG CEE PULG BS PULG CEE PULG CEE PULG CEE PULG
USB CABLE YES YES YES YES YES YES YES YES
MEMORY CARD NO NO NO NO
YES(MMC8MB) YES(MMC8MB) YES(MMC8MB) YES(MMC8MB)
CD-ROM YES YES YES YES YES YES YES YES

1-6 (No.YF008)
SECTION 3
DISASSEMBLY
3.1 BEFORE 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·m
(1.2kgf·cm). However, 0.118N·m (1.2kgf·cm) is a value at the
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
3.1.3 Disconnection of connectors (Wires)
Fig.3-1-1
3.1.4 Tools required for disassembly and assembly
Fig.3-1-2
•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.
3.2 ASSEMBLY AND DISASSEMBLY OF MAIN PARTS
3.2.1 Assembly and disassembly
When reassembling, perform the step(s) in reverse order.
(∗1) Order of steps in Procedure
When reassembling, preform the step(s) in the reverseorder.
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.
C = CABINET
(∗4) Identification of part to be removed, unhooked, unlocked,
released, unplugged, unclamped or unsoldered.
S = Screw
L = Lock, Release, Hook
SD = Solder
CN = Connector
[Example]
• 4 (S1a) = Remove 4 S1a screws.
• 3 (L1a) = Disengage 3 L1a hooks.
• 2 (SD1a) = Unsolder 2 SD1a points.
• CN1a = Remove a CN1a connector.
(∗5) Adjustment information for installation.
CN2a
CN2b
MAIN CN101
MAIN CN103
40
2
CONN. No. PIN No.CONNECTOR
Two kinds of double-arrows in connection tables respectively
show kinds of connector/wires.
: The connector of the side to remove
: Wire: Flat wire : Board to board (B-B)
MONI/BW CN761
MIC CN762
B-B Connector
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
Wire
· Pull both ends of the connector in the arrow
direction, remove the lock and disconnect the flat
wire.
FPC Connector
Lock
Wire
· 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.
Cleaning cloth
KSMM-01
Torque driver
YTU94088
Bit
YTU94088-003
Chip IC replacement jig
PTS40844-2
Tweezers
P-895
( 4) ( 5)( 2) ( 3)( 1)
TOP COVER ASSY
UPPER ASSY
(Inc. VF ASSY,
SPEAKER/MONITOR)
VF ASSY
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

(No.YF008)1-7
3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS
zDisassembly procedure
NOTE4:
Be careful not to cut the FPC.
NOTE6:
Be careful about the engagement of the wire.
NOTE7:
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 ASSEM-
BLY, 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) AS-
SEMBLY, be careful not to damage the FPC.
For the disassembly/assembly procedure of the MECHA-
NISM ASSEMBLY, see the Service Manual "DVC MECHA-
NISM (No.86700)."
NOTE13a:
Remove the SHEET and the screw if necessary.
NOTE13b:
For the disassembly/assembly procedure of the VF ASSEM-
BLY, see "3.2.5 DISASSEMBLY/ASSEMBLY OF [13] VF
ASSEMBLY"
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 BRACK-
ET(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 care-
ful 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
STEP
No. PART NAME Fig.
No. POINT NOTE
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
/[12]
[13]
[14]
[15]
[16]
[17]
ORNAMENT(TOP)
COVER(JIG)
COVER(UPPER)
UPPER CASE ASSY
(INCLUDE VF(COLOR)ASSY, MONITOR ASSY)
COVER(ZOOM)
FRONT COVER ASSY
REAR UNIT ASSY
LOWER CASE ASSY
OP BLOCK ASSY
MAIN BOARD ASSY
PREMDA BOARD ASSY
/MECHANISM ASSY
VF ASSY
COVER(HINGE)
MONITOR ASSY
MONI-C BOARD ASSY
SPEAKER
2(L1)
(S2)
(S3a),(S3b),2(L3)
2(S4a),3(S4b),(S4c),(S4d),(S4a),
CN4a,CN4b
2(S5),(L5)
(S6),2(L6a),(L6b)
CN7a,CN7b,(S7),(L7a),(L7b)
CN8a,CN8b,CN8c,6(S8),4(L8)
CN9a,CN9b,2(S9),(L9a),(L9b)
(S10a),(S10b),2(L10),CN10a,CN10b
2(S11a),L11,CN11a,b,c,d,e,f,2(S11b)
3(S12),BKT(MECHA)ASSY
CN13,(S13a),(S13b),(L13)
(S14a),2(S14b)
2(S15a),CN15,2(S15b)
SD16,2(S16a),2(S16b),2(L16),
KNOB(SLIDE)
2(S17a),(S17b),BKT(HINGE),
2(S17a),BKT(SPK)
Fig.C1
Fig.C2
Fig.C3
Fig.C4
Fig.C5
Fig.C6
Fig.C7
Fig.C8
Fig.C9
Fig.C10
Fig.C11
Fig.C12
Fig.C13
-
-
-
NOTE4
-
NOTE6
NOTE7
NOTE8
NOTE9
NOTE10
NOTE11
NOTE12
NOTE13a,b
-
NOTE15a,b
NOTE16a,b
NOTE17
CN.NO.
CONNECTOR PIN
NO.
CN4a MAIN CN101 MONI-C CN7614 40
CN4b MAIN CN103 MONI-C CN762 10
CN7a MAIN CN104
REAR UNIT ASSY CN408 8
CN7b MAIN CN112
REAR UNIT ASSY CN401 12
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

1-8 (No.YF008)
Fig.C1
Fig.C2
c
[1]
[3]
3
2
1
[2]
(S3a)
(S2)
(S3b)
b
b
c
L1
L3
9
7
8
10 11
456
[4]
CN4a CN4b
(S4a) (S4a) (S4b)
(S4b)
(S4b)
(S4c)
(S4d) (S4a)
<NOTE4>

(No.YF008)1-9
Fig.C3
Fig.C4
Fig.C5
Fig.C6
[5]
12 13
(S5)
(S5)
L5
[6]
[7]
14 15
FPC
k
k
(S6) (S7)
L7a
L7b
CN7a
CN7b
L6a
L6b
<NOTE6>
<NOTE7>
16
17
18
19
20
21
[8] g
f
h
h
g
(S8)
(S8)
(S8)
(S8)
(S8)
(S8)
i
i
j
j
L8
L8
CN8a
CN8b
CN8c
<NOTE8>
f
CN9a CN9b
22
[9]
23
(S9)
(S9)
a
a
b
b
L9a
L9b
<NOTE9>

1-10 (No.YF008)
Fig.C7
Fig.C8
[10]
24
25
CN10a
CN10b
(S10a)
(S10b)
L10
L10
<NOTE10>
:0.068N.m (0.7kgf.cm)
:0.078N.m (0.8kgf.cm)
26
27
28
29
30
31
32 [11]
[12]
(S11b)
(S11b)
CN11a
CN11b
CN11c
CN11d
CN11e
CN11f
(S11a)
(S11a)
L11
(S12)
(S12)
(S12)
<NOTE12>
BKT(MECHA)ASS'Y
SHIELD COVER

(No.YF008)1-11
Fig.C9
Fig.10
Fig.C11
Fig.C12
33
34
(S13a)
(S13b)
g
g
f
f
CN13
l
l
[13]
L13
<NOTE13a>
SHEET
<NOTE13b>
35
36
37
h
h
i
i
(S14b)
(S14b)
(S14a)
[14]
:0.147N.m (1.5kgf.cm)
a
b
[15]
a
b
38
39
(S15a)
(S15a)
40
41
(S15b)
(S15b) CN15
<NOTE15b>
<NOTE15a>
c
c
d
d
e
e
42
43
44
(S16a)
(S16b)
(S16b)
[16]
L16
KNOB(SLIDE)
<NOTE16b>
SD16
<NOTE16a>

1-12 (No.YF008)
Fig.13
[17]
48
49
(S17a)
(S17a)
<NOTE17>
BKT(SPK)
BKT(HINGE)
45
(S17a)
(S17b)
46
(S17a)
47
a
a

(No.YF008)1-13
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 mon-
itor 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 alphabetical
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.
Fig.3-2-3
MONITOR CASE
LCD FRAME
LCD MODULE
MONITOR HINGE
ASSEMBLY
BACK LIGHT
MONITOR COVER
ASSEMBLY
SENSOR BOARD
ASSEMBLY
:0.078N.m (0.8kgf.cm)
:0.246N.m (2.5kgf.cm)
SHEET(DIFF)
BL2.5
BOARD ASSEMBLY
L15g
SHIELD CASE
L15f
5
(S15a)
L15b
CN15b
L15e
CN15a
CN15c
L15a
L15e
L15f
L15d
L15c
4
(S15b)
3
(S15b)
1
(S15a)
2
(S15a)
b
b
a
ac
c
SD15a
SD15b

1-14 (No.YF008)
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., espe-
cially 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 IM-
AGE SENSOR to the OP BLOCK ASSEMBLY.
zDisassembly procedure of OP BLOCK ASSEMBLY/CCD
BOARD ASSEMBLY
(1) Unsolder the 14 soldered points (SD9), 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 theOP 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.
Instead, replace the whole 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 fol-
lows.
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 MO-
TOR.
NOTE 9d:
The IRIS MOTOR UNIT contains the FPC ASSEMBLY and
the SENSOR ×2.
Fig.3-2-4
OP BLOCK
ZOOM MOTOR
CCD BASE ASSEMBLY
CCD BOARD ASSEMBLY
IRIS MOTOR UNIT
SENSOR
SHEET
2
(S9a)
1
(S9a)
SD9
OP
side
CCD
side
Blue
OP LPF
<NOTE 9c>
OP LPF
SPACER
<NOTE 9a, b>
<NOTE 9c, d>
FOCUS MOTOR
<NOTE 9c>
0.078N.m (0.8kgf.cm)
0.118N.m (1.2kgf.cm)
4
(S9b)
3
(S9b)
6
(S9b)
5
(S9b)
10
(S9b)
11
(S9b)
9
(S9b)
7
(S9c)
8
(S9c)

(No.YF008)1-15
3.2.5 DISASSEMBLY/ASSEMBLY OF [13] VF ASSEMBLY
• When replacing the VF FPC ASSEMBLY, first remove the ex-
terior 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 CONNEC-
TOR first, the FPC may be cut or the SWITCH may be dam-
aged.
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 not to cut the 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), and remove the BOTTOM
CASE(VF) so that the BOTTOM CASE(VF) is facing up-
ward.
NOTE13b:
During the operation, be careful of the LEVER (LENS).
Especially, during the attachment procedure, be care-
ful 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).
Fig.3-2-5
:0.068N.m (0.7kgf.cm)
4
(S13b)
<NO TE 13a>
<NO TE 13b>
<NO TE 13d>
<NO TE 13c>
5
(S13c)
1
(S13a) 2
(S13a)
3
(S13b)
6
(S13b)
11
(S13d)
9 (S13d)
8 (S13d)
10 (S13e)
7
(S13b)
BRACKET(VF)
FPC
LCD UNIT(COVER)ASSEMBLY
LENS ASSEMBLY
HOLDER(VF)
LEVER(LENS)
GUIDE LENS(VF)
UPPER CASE(VF)
BOTTOM CASE(VF)
EYE CUP
SHEET(LENS)
SPRING(LENS)
a
c
b
F1
c
b
a
C-VF
BOARD
ASSEMBLY
[0][7]
F2
F2
F1
F2
(K TYPE)
(S TYPE)

1-16 (No.YF008)
SECTION 4
ADJUSTMENT
4.1 PREPARATION
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
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 sur-
face.
Service Support System
YTU94057-76
INF Adjustment Lens
YTU92001B
INF Adjustment Lens Holder
YTU94087
Camera Stand
YTU93079
Light box Assembly
YTU93096A
Gray Scale Chart
YTU94133A
Color Bar Chart
YTU94133C
Communication Cable
YTU93107A
PC Cable
QAM0099-005
Alignment Tape
MC-2
Jig Connector Cable
YTU93082C
Torque Driver
YTU94088
Bit
YTU94088-003
Chip IC Replacement Jig
PTS40844-2
Tweezers
P-895
Cleaning Cloth
KSMM-01
Guide Driver (Hexagonal)
D-770-1.27

(No.YF008)1-17
•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 sta-
tus 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
Tobeusedtoconnect theVideocameraanda personalcomputer
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.
4.2 JIG CONNECTOR CABLE CONNECTION
NOTE:
In the case of jig connector cable use, since you cannot per-
form supply from DC jack, use a battery terminal.
Connection procedure
TO JLIP_RX
TO JLIP_TX
TO GND
TO ENV_OUT
TO HID1
COMMUNICATION CABLEJIG CONNECTOR OSCILLOSCOPEJIG CONNECTOR
WHITE
RED
BLACK
MENU
RS232C
COM PORT
SERVICE SUPPORT SYSTEM
PC CABLE
FOR
COMMUNICATION CABLE
COMMUNICATION CABLE
PERSONAL COMPUTER
COVER (JIG)
JIG CONNECTOR CABLE
JIG CONNECTOR
SCREW
ADJUST
SCREW
GUIDE ROLLER (TU)
GUIDE ROLLER (SUP)

1-18 (No.YF008)
Jig connector diagrams 4.3 MECHANISM COMPATIBILITY ADJUSTMENT
4.3.1 Tape pattern adjustment
NOTE:
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 parallel and straight,
and free from remarkable level-down, through the 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 unloading 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.
Fig.4-3-1
Fig.4-3-2
4.4 ELECTRICAL 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".
JIG CONNECTOR CABLE (YTU93082C)
AL_3VSYS
CJIG_RST
NC
VCOM
STH1
CVF_R
CVF_B
V_OUT
GND
TXD2
MON_G
CVF_G
RXD2
MINI_CHG
JLIP_RX
GND
JLIP_TX
PB_CLK
HID1
GND
ATFI
ENV_OUT
MAIN_VCO
DISCRI
I_MTR
IF_TX
EXMOD_1
FS_PLL
MMOD_0
MMOD_1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
MAIN CN105 JIG BOARD ASSY (14PIN)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
HID1
MONI_CHG
RXD2
CVF_G
MON_G
TXD2
GND
V_OUT
CVF_B
CVF_R
STH1
VCOM
NC
NC
JIG BOARD ASSY (15PIN)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
MMOD_1
MMOD_0
FS_PLL
EXMOD_1
IF_TX
I_MTR
DISCRI
MAIN_VCO
ENV_OUT
ATFI
GND
PB_CLK
JLIP_TX
GND
JLIP_RX
Flatten the waveform.
Misalignment of guide roller
height on the take-up side
Misalignment of guide
roller height on the
supply side
ENV_OUT
HID1

(No.YF008)1-19
SECTION 5
TROUBLE SHOOTING
5.1 SERVICE NOTE
NOTE:
1) * : Don't reuse the screw, because screw lock bond was applied to them. 2) Pay careful attention to tightening torque for each screw.
: 0.088N.m (0.9kgf.cm)
: 0.246N.m (2.5kgf.cm)
: 0.068N.m (0.7kgf.cm)
: 0.246N.m (2.5kgf.cm)
: 0.078N.m (0.8kgf.cm)
: 0.118N.m (1.2kgf.cm)
Symbol No.
Removing order of screw
Place to stick screw
Reference drawing (Fig.No.)
Screw tightening torque
Symbol No.
Removing order of screw
Place to stick screw
Reference drawing (Fig.No.)
Screw tightening torque
Removing order of screw
Place to stick screw
Reference drawing (Fig.No.)
Screw tightening torque
Removing order of screw
Place to stick screw
Reference drawing (Fig.No.)
Screw tightening torque
Removing order of screw
Place to stick screw
Reference drawing (Fig.No.)
Screw tightening torque
CABINET PARTS AND ELECTRICAL PARTS
[1] [2] [6] [7]
- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 -
CABINET PARTS AND ELECTRICAL PARTS
[16] [17]
[15]
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
**
C12 C13
VF ASSEMBLY MONITOR ASSEMBLY
[13]
1234567891011 12345
**
OP BLOCK ASSEMBLY
[9]
1234567891011
[10]
C7C6
[9]
[14][11]
C11C10C8 C9
[3]
C1 C2
[4] [5] [8]
[12]
C3 C4
[13] [15]
C5
3-2-5 3-2-3 3-2-4

1-20 (No.YF008)
5.2 TAKE 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.
Fig.5-2-1
(DC3V)
TAPE
LOADING MOTOR
ASSEMBLY
REEL DISK
ASSEMBLY (SUP)
SLIDE DECK
ASSEMBLY
CASSETTE HOUSING
ASSEMBLY
CASSETTE COVER