JVC GR-D370UC User manual

SERVICE MANUAL
COPYRIGHT © 2006 Victor Company of Japan, Limited No.YF124
2006/2
DIGITAL VIDEO CAMERA
YF12420062
GR-D370UC, GR-D370US,
GR-D371US, GR-D375UC,
GR-D375US, GR-D390UC,
GR-D390US, GR-D395US,
GR-D396US
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.YF081(MECHANISM ASSEMBLY).
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
TABLE OF CONTENTS
1 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
GR-D370UCM, GR-D370USM, GR-D371USM,
GR-D375UCM, GR-D375USM, GR-D390UCM,
GR-D390USM, GR-D395USM, GR-D396USM [M6D1S5]

1-2 (No.YF124)
SPECIFICATION
Camcorder
AC Adapter
Specifications shown are for SP mode unless otherwise indicated. E & O.E. Design and specifications subject to change without
notice.
For General Power supply DC 11 V (Using AC Adapter)
DC 7.2 V (Using battery pack)
Power consumption Approx. 2.8 W (3.0 W*) (LCD monitor off, viewfinder on)
Approx. 3.2 W (3.4 W*) (LCD monitor on, viewfinder off)
Approx. 6.5 W (Maximum; when charging the battery pack)
* Using LED Light
Dimensions (W ×H ×D) 59 mm ×94 mm ×114 mm(2-5/16" ×3-11/16" ×4-1/2")
(with the LCD monitor closed and the viewfinder pushed back in)
Weight Approx. 400g (0.88 lbs)
(without battery, cassette and lens cap)
Approx. 480 g (1.1 lbs) / Approx. 525 g (1.16 lbs)(GR-D395 only)
(incl. battery, cassette and lens cap)
Operating temperature 0°C to 40°C (32°F to 104°F)
Operating humidity 35% to 80%
Storage temperature -20°C to 50°C (-4°F to 122°F)
Pickup 1/6" CCD
Lens F 2.0, f = 2.3 mm to 73.6 mm, 32:1 power zoom lens
Filter diameter Ø27 mm
LCD monitor 2.5" diagonally measured, LCD panel/TFT active matrix system
Viewfinder Electronic viewfinder with 0.33" color LCD
Speaker Monaural
LED Light Effective distance: 1.5 m (5 ft)
For Digital Video
Camera
Format DV format (SD mode)
Signal format NTSC 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
(using 80 min. cassette)
SP: 80 min., LP: 120 min.
For Digital Still
Camera
Storage media SD Memory Card/MultiMediaCard
Compression system JPEG (compatible)
File size Still image : 1 mode (640 ×480 pixels)
Picture quality 2 modes (FINE/STANDARD)
For Connectors AV Video output 1.0 V (p-p), 75Ω, analog
Audio output 300 mV (rms), 1 kΩ, analog, stereo
DV Input/output 4-pin, IEEE 1394 compliant
USB Mini USB-B type, USB 1.1 compliant
Power requirement AC 110 V to 240 V, 50 Hz/60 Hz
Output DC 11 V, 1 A

(No.YF124)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) 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
1.25
2.0
5.5
Crimping tool
Not easily pulled free Crimped at approx. cente
r
of metal sleeve
Conductors extended
Wire insulation recessed
more than 4 mm

1-4 (No.YF124)
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
V
A
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 Clearance Distance (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 m m (Power cord)
d' 6 m m (Primary wire)
d 4 m m
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.YF124)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 DIFFERENCE LIST
The following table indicate main different points between models GR-D370UC, GR-D370US, GR-D371US, GR-D375UC,
GR-D375US, GR-D390UC, GR-D390US, GR-D395US and GR-D396US.
MODEL NAME GR-D370UC GR-D370US GR-D371US
MEMORY CARD NO(OPTIONAL) NO(OPTIONAL) NO(OPTIONAL)
REMOTE CONTROL NO NO RM-V720U
BATTERY PACK BN-VF707US BN-VF707US BN-VF707US
MODEL NAME GR-D375UC GR-D375US GR-D390UC
MEMORY CARD NO(OPTIONAL) NO(OPTIONAL) YES(PROVIDED)
REMOTE CONTROL RM-V720U RM-V720U RM-V720U
BATTERY BN-VF707US BN-VF707US BN-VF707US
MODEL NAME GR-D390US GR-D395US GR-D396US
MEMORY CARD YES(PROVIDED) NO(OPTIONAL) NO(OPTIONAL)
REMOTE CONTROL RM-V720U RM-V720U RM-V720U
BATTERY BN-VF707US BN-VF714US BN-VF707US ×2

1-6 (No.YF124)
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
otherwise specified, tighten screws at a torque of 0.098N·m
(1.0kgf·cm). However, as this is a required value at the time of
production, use the value as a measuring stick when
proceeding repair services. (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 be-
cause 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.
(∗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
10
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
MINI BW 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.
· 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.
· 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.
· 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.
FPC Connector
Wire
FPC Connector
Lock
Wire
FPC Connector
Wire
Lock
Lock
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)
E.VF UNIT(B/W)
C1
C2-1
C2-2
4(S1a), 3(L1a),CN1a
(S2a),2(S2b),3(S2c)
2(SD1a),
L2,CN2a,b
2(S8),L8,CN8a
-
-
NOTE 8
[1]
[2]
[8]
STEP
No. PART NOTE
Fig.
No. POINT

(No.YF124)1-7
3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS
zDisassembly procedure
NOTE1a:
Open the MONITOR ASSY, and then remove the screw
(No.7) which is next to the DV terminal.
NOTE1b:
When removing the UPPER ASSY, be careful in handling
the FPC.
Also, be careful in wiring the FPC when attaching the UP-
PER ASSY.
NOTE2a:
During the procedure, be careful in handling the SWITCH.
When attaching, leave the MONITOR ASSY open.
NOTE2b:
When attaching, be careful in wiring.
NOTE2c:
During the procedure, be careful not to lose KNOB(SLIDE).
NOTE5:
When attaching, be careful in wiring (SPEAKER).
NOTE7:
When attaching, be careful to avoid placing the WIRE (MIC)
on the front side, and make sure to place the WIRE (MIC) on
the connector.
NOTE8:
Pull out the GLIP BELT first.
NOET9a:
When removing the VF ASSY, pull out the FPC on the CCD
BOARD ASSY from the MAIN BOARD ASSY first.
NOTE9b:
When removing, pull out the FPC by lifting up the VF AS-
SEMBLY.
NOTE10:
During the procedure, release the LOWER CASE ASSY in
the direction of an arrow.
NOTE11:
During the procedure, be careful in handling the FPC.
NOTE12:
During the procedure, be careful not to damage the
SWITCH.
During the procedure, leave the CASS. COVER closed.
NOTE13:
When attaching, be careful to avoid any uplift or unevenness
of the CUSHION (OP).
zDestination of connectors
UPPER ASSY
OPE PWB ASSY
COVER (HINGE)
MONITOR ASSY
SPEAKER
ZOOM UNIT
FRONT ASSY
CASS.COVER
VF ASSY
REAR COVER ASSY
LOWER CASE ASSY
REAR PWB ASSY
OP BLOCK ASSY
MAIN BKT ASSY
MAIN PWB ASSY
FRAME ASSY
STEP
No. PART NAME Fig.
No. POINT NOTE
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
S1a,2(S1b),3(S1c),S1d
L1a,L1b,CN1
CN2a,b,c,S2a,4(S2b),KNOB(SLIDE)
2(S3)
2(S4),2(L4)
BKT.(HINGE),2(L5)
3(S6),L6
S7a,2(S7b),2(L7a),2(L7b),CN7
GRIP BELT,4(S8),3(L8)
CN9a,S9a,b,c,CN9b
S10a,b,c,L10a,b
2(S11),CN11
S12,L12,CN12
CN13,2(L13)
3(S14),L14a,b
CN15a,b,c,d,e,S15,L15a,b
4(S16)
FA1-1
FA1-2
FA2-1
FA2-2
FA2-3
FA2-4
FA3
FA4
FA5
FA6
FA7
FA8
FA9
FA10
NOTE1a
NOTE1b
NOTE2a,b,c
-
-
NOTE5
-
NOTE7
NOTE8
NOTE9a,b
NOTE10
NOTE11
NOTE12
NOTE13
-
-
-
CN1 MAIN CN103 OPE CN401 30
CN2a OPE CN403 ZOOM UNIT - 8
CN2b OPE CN404 SPEAKER - 2
CN2c OPE CN402 MONITOR CN7601 18/21
CN7 MAIN CN2601 MIC - 4
CN9a MAIN CN4201 CCD CN5001 20
CN9b MAIN CN7801 VF CN7001 24/23
CN11 REAR CN502 POWER UNIT - 7
CN12 MAIN CN101 REAR CN504 32
CN13 MAIN CN4901 OP BLOCK - 26
CN15a MAIN CN1604 SENSOR - 16
CN15b MAIN CN1603 CAPSTAN MOTOR - 18
CN15c MAIN CN1602 DRUM MOTOR - 11
CN15d MAIN CN3501 HEAD - 8
CN15e MAIN CN1601 LOADING MOTOR
- 8
ROTARY ENCODER SW
CN.
No.
PIN
No.
CONNECTOR

1-8 (No.YF124)
Fig.FA1-1
Fig.FA1-2
Fig.FA2-1
Fig.FA2-2
1
(S1a)
7
(S1d)
2
(S1b)
3
(S1b)
4
(S1c)
5
(S1c)
6
(S1c)
NOTE1a
NOTE1b
OPE FPC
[1]
CN1
L1b
L1b
L1a
Q
CN2c
SWITCH
KNOB(SLIDE)
CN2c
CN2a
CN2b
CN2a
CN2b
a
a
8
(S2a)
9
(S2b)
10
(S2b)
11
(S2b)
12
(S2b)
8
(S2a)
9
(S2b)
10
(S2b)
11
(S2b) 12
(S2b)
[2]
NOTE2a
NOTE2c
< NOTE2b >
[3]
13
(S3)
14
(S3)

(No.YF124)1-9
Fig.FA2-3
Fig.FA2-4
Fig.FA3
Fig.FA4
[4]
15
(S4)
L4
b
b
c
16
(S4)
c
0.196Nm(2.0kgfcm)
[5]
[6]
NOTE5
< NOTE5 >
L5
L6
BKT.(HINGE)
17
(S6) 18
(S6) 19
(S6)
< NOTE7 >
e
f
dd
e
CN7
f
21
(S7b)
L7a
WIRE(MIC)
L7b
22
(S7b)
20
(S7a)
[7]
[8]
26
(S8)
23
(S8)
25
(S8)
L8
24
(S8)
GRIP BELT
NOTE8

1-10 (No.YF124)
Fig.FA5
Fig.FA6
Fig.FA7
Fig.FA8
[9]
27
(S9a)
CN9a
CN9b
h
h
28
(S9b)
29
(S9c)
g
g
NOTE9a
NOTE9b
30
(S10a)
31
(S10b)
32
(S10c)
L10a
L10b
LOWER CASE ASSY
j
j
[10]
NOTE10
CN11
k
k
k
33
(S11)
34
(S11)
TO CN11
[11]
NOTE11
< NOTE11 >
TOP VIEW
35
(S12)
35
(S12)
L12
L13
CN12
CN13
SW
[13]
[12]
NOTE13
NOTE12
NOTE12

(No.YF124)1-11
Fig.FA9 Fig.FA10
3.2.3 ASSEMBLY/DISASSEMBLY OF [4] MONITOR ASSEMBLY
zCAUTIONS
(1) During the procedure, be careful in handling the LCD
MODULE and other parts. Pay special attention not to
damage or soil the monitor screen.
If fingerprints are left on the screen, wipe them with clean
chamois leather or a cleaning cloth.
zRemoving MONITOR ASSEMBLY
(1) Turn the HINGE UNIT ASSEMBLY 90°, and remove the
two screws (1 and 2). Remove the M.COVER ASSY by
removing the six hooks (L4a-f).
(2) Pull out the U/D SWITCH BOARD from the MONITOR
CASE ASSEMBLY.
NOTE4a:
During the procedure, be careful in handling the FPC.
(3) Release the lock of the connector (CN4a), and remove
the HINGE UNIT by lifting it up.
(4) Release the lock of the connector (CN4b), and pull out
the FPC.
(5) Remove the screw (3), and Remove the MONI PWB
ASSY by removing the hook (L4g).
NOTE4b:
When attaching the MONITOR BOARD ASSEMBLY,
be careful to avoid any misalignment or unevenness of
the parts underneath.
(6) Remove the SHEET (M.REF), LIGHT GUIDE, SHEET
(M.DIFF) and the SHEET(BEF).
(7) Remove the S.CASE(MONI), LCD MODULE and the
LCD CASE.
NOTE4c:
During the procedure, handle the three parts (LCD
CASE, LCD MODULE, and S.CASE(MONI)) together.
zRemoving HINGE UNIT ASSEMBLY
(1) Remove the screw (4), and Remove the H.COVER(U,L).
NOTE4d:
During the procedure, be careful in handling the mag-
net.
When attaching, set the negative pole outside as
shown in the figure. Be careful when removing as
there is no marking.
NOTE4e:
During the procedure, be careful in handling the FPC.
NOTE4f:
The FPC is rolled around the axis of rotation of the
HINGE ASSEMBLY 2.5 rounds (2.5times).
The connecting side to the MONITOR BOARD AS-
SEMBLY is placed inside.
36
(S14)
L14b
L14a
38
(S14)
37
(S14)
[14]
mm
nn
m
n
39
(S15)
40
(S16)
41
(S16)
43
(S16)
CN15a
L15b
L15a
CN15e
CN15d
CN15c
CN15b
[15]
[15]
<MECHANISM SIDE>
[16]
rqpn
oo
n
pq
r
42
(S16)
0.088Nm(0.9kgfcm)

1-12 (No.YF124)
Fig.3-2-3
b
b
A
A
a
MAGNET
HINGE COVER(L)
MONITOR BOARD ASSY
M.COVER ASSY
L4g
SHEET(M.REF)
LIGHT GUIDE
SHEET(M.DIFF)
SHEET(BEF)
LCD CASE
LCD MODULE
S.CASE(MONI)
S.CASE(MONI)
MONITOR CASE SIDE
M.COVER ASSY SIDE
LCD MODULE
SUPPORT PLATE
SIDE
LCD CASE
MONITOR CASE
N pole S pole
H.COVER(U)
HINGE ASSY
H.COVER(L)
MAGNET
<NOTE4a>
<NOTE4f>
<NOTE4d>
1
(S4a) 2
(S4a)
3
(S4a)
4
(S4b)
CN4a
U/D SW
BOARD CN4b
aa
NOTE4e,f
FPC
NOTE4b
BOTTOM VIEW
L4b L4c L4f
L4e
L4a L4d
NOTE4c

(No.YF124)1-13
3.2.4 ASSEMBLY/DISASSEMBLY OF [13] OP BLOCK ASSMBLY/CCD BOARD ASSEMBLY
zPrecautions
(1) Take care in handling the CCD IMAGE SENSOR, OPTI-
CAL LPF and lens components when performing main-
tenance etc., especially with regard to surface
contamination, attached dust or scratching. If finger-
prints are present on the surface they should be wiped
away using either a silicon paper, clean chamois or the
cleaning cloth.
(2) The CCD IMAGE SENSOR may have been shipped with
a protective sheet attached to the transmitting glass.
When replacing the CCD IMAGE SENSOR, do not peel
off this sheet from the new part until immediately before
it is mounted in the OP BLOCK ASSEMBLY.
zDisassembly of OP BLOCK ASSEMBLY / CCD BOARD AS-
SEMBLY
(1) Unsolder the fourteen soldered points (SD13a) of the
CCD BOARD ASSEMBLY.
NOTE13a:
Be careful in handling as there are only the OPTICAL
LPF and the SHEET stored inside the OP BLOCK
ASSY when the CCD BASE ASSY is removed.
NOTE13b:
Replace the CCD IMAGE SENSOR as a CCD BASE
ASSEMBLY, not as a single part replacement.
(2) Remove the two screws (1, 2), and then remove the CCD
BOARD ASSEMBLY and the CCD BASE ASSEMBLY.
zAssembly of OP BLOCK ASSEMBLY / CCD BOARD AS-
SEMBLY
(1) Set the OPTICAL LPF first, and then the SHEET to the
OP BLOCK ASSEMBLY.
NOTE13c:
Pay careful attention to the orientation of the OPTICAL
LPF.
(2) Attach the CCD BASE ASSEMBLY first then the CCD
BASE ASSEMBLY so that the SHEET stays in place,
and tighten with the two screws (1, 2).
(3) Solder the 14 points (SD13a) on the CCD BOARD AS-
SY.
zReplacement of service repair parts
The service repair parts for the OP BLOCK ASSEMBLY are as
listed below.
Before replacement of these parts, remove the BRACKET (OP
BLOCK ASSEMBLY) as required.
Take special care not to disconnect any of the FPC wires or
cause any damage due to soldering (excessive heating).
(1) FOCUS MOTOR UNIT
(2) ZOOM MOTOR UNIT
(3) AUTO IRIS UNIT
NOTE 13d:
When replacing the FOCUS MOTOR UNIT or the ZOOM
MOTOR UNIT, solder the FPC at a space of about 0.5 mm
above the terminal pin.
NOTE 13e:
The AUTO IRIS UNIT includes the FPC ASSEMBLY and
two sensors.
Fig.3-2-4
SD13b
0.147Nm (1.5kgfcm)
NOTE13c
NOTE13a,b
NOTE13d,e
CCD BOARD ASSEMBLY
CCD BASE ASSEMBLY
AUTO IRIS UNIT
SENSOR
SHEET
OPTICAL LPF
CUSHION(OP)
2
(S13a)
SD13
1
(S13a)
3
(S13b)
4
(S13b)
ZOOM MOTOR UNIT
NOTE13d,e
5
(S13b)
7
(S13b)
8
(S13b)
9
(S13b)
6
(S13b)
NOTE13b
FOCUS
MOTOR UNIT

1-14 (No.YF124)
3.2.5 ASSEMBLY/DISASSEMBLY OF [9] VF ASSEMBLY
zBefore disassembly
As the VF ASSEMBLY has complicated structure, do not dis-
assemble if not needed.
When assembling, be careful to prevent dust or any foreign
materials entering inside, and avoid soils on both the LENS
and the SHEET.
zDisassembly procedure
(1) Remove the screw (1), and then remove the KNOB
(SWITCH).
(2) Remove the screw (2), and remove the BKT.(COVER).
(3) Pull out the CASE(VF) from the VF ASSY, remove the
screw (3), and then remove the EYE CUP.
(4) Remove the two screws (4, 5), and then remove the
COVER(EYE CUP).
NOTE9a:
Do not remove the COVER(EYE CUP) if not needed
as the CASE(VF) can be removed without removing
the COVER(EYE CUP).
(5) Peel off the FPC, and then remove the CASE(VF).
NOTE9b:
During the procedure, be careful in handling the FPC.
(6) Set the LEVER(VF) to the TRIANGLE MARK( ) of the
CASE(VF), and then remove the LENS ASSY.
NOTE9c:
During the procedure, be careful in handling the parts.
Pay special attention not to damage, soil, or leave fin-
gerprints on the surface.
NOTE9d:
After attaching the LENS ASSY, rotate the LE-
VER(VF) counterclockwise to check the smooth slid-
ing operation of the LENS ASSY.
(7) Press hooks (L9c,d) on both sides of the HOLDER(LCD)
to remove the LCD SA from the CASE(VF).
NOTE9e:
During the procedure, be careful not to damage the VF SW.
NOTE9f:
Refer to the Fig.(VF2) for the disassembly of the LCD
SA, and disassemble the LCD SA if necessary. During
the procedure, be careful to prevent dust or any for-
eign materials entering inside.
(8) Remove the FPC from the connector (CN9), and then re-
move the VF BOARD ASSY.
NOTE9g:
During the procedure, be careful not to damage the parts.
Fig.VF1
0.069Nm(0.7kgfcm)
bb
b
a
a
TRIANGLE MARK( ) MARKING
<NOTE9d> <NOTE9b>
LEVER(VF)
CASE(VF)
LENS ASSY
COVER(SLIDE)
COVER(EYE CUP)
BKT.(COVER)
KNOB(SWITCH)
EYE CUP
L9a
L9a
L9b
1
(S9a)
3
(S9c)
4
(S9d)
5
(S9d)
2
(S9b)
NOTE9c

(No.YF124)1-15
Fig.VF2
0.069Nm(0.7kgfcm)
<LCD SA>
CASE(B.LIGHT)
VF BOARD ASSY
VF SW
CLICK PLATE
L9d
L9f
L9e
L9f
L9e
L9c
CASE(VF)
LCD SA
STOPPER(POLA)
CUSHION
SHEET(POLA)
SHEET(DIFF.)
SHEET(POLA)
CUSHION
LCD MODULE
HOLDER(LCD)
6
(S9e)
FPC
CN9
NOTE9g
NOTE9e
NOTE9f

1-16 (No.YF124)
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.
• EEP ROM (IC1005 of MAIN board)
• OP BLOCK ASSEMBLY
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.
Mini Stand
YTU93108
Service Support System
YTU94057-92
INF Adjustment Lens
YTU92001B
INF Adjustment Lens Holder
YTU94087
Light box Assembly
YTU93096A
Gray Scale Chart
YTU94133A
Color Bar Chart
YTU94133C
PC Cable
QAM0099-002
Conversion Connector
YTU94145K-20
Jig Connector Cable
YTU93106B
Communication Cable
YTU93111
Alignment Tape
MC-1
Torque Driver
YTU94088
Bit
YTU94088-003
Chip IC Replacement Jig
PTS40844-2
Tweezers
P-895
Cleaning Cloth
KSMM-01
Guide Driver
YTU94148A-1

(No.YF124)1-17
•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.
•Guide driver
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 adjustment 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.
•Mini stand
To be used together with the INF adjustment lens holder. For
the usage of the Mini 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.
•Service support system
To be used for adjustment with a personal computer. Software
can be downloaded also from JS-net.
•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.
•Jig connector cable
Connected to JIG CONNECTOR of the main board and used
for electrical adjustment, etc.
•Conversion connector
Conversion connector is used to convert the connector part of
the JIG connector cable.
4.2 JIG CONNECTOR CABLE CONNECTION
4.2.1 CAUTIONS
(1) Only 9 of 30pins of JIG CONNECTOR CABLE(PN:YTU93106B)
are extended with wires. Additional 5pins (3,6,7,11and18)
need to be soldered and extended with the wires for adjust-
ment and checking.
See Fig. 4-2-1 for details.
Fig.4-2-1
: ADDITIONAL WIRE
713
22pin CVF_G
23pin CVF_B
24pin COM_VF
25pin FS_PLL
26pin HID
27pin MAIN_VCO
28pin IF_RX
29pin AL_3VSYS
30pin NOT USE
8pin XSTH
9pin GND
5pin NOT USE
13pin IF_TX
12pin ENV_OUT
10pin GND
7pin CVF_R
2428
252729
<COMPONENT SIDE>
<FOIL SIDE>

1-18 (No.YF124)
Connection procedure
Fig.4-2-2
Jig connector diagrams
Fig.4-2-3
Conversion Connector
Fig.4-2-4
GUIDE ROLLER (TU)
GUIDE ROLLER (SUP)
PC CABLE
COVER(JIG CON)
JIG CONNECTOR
COMMUNICATION
CABLE
JIG CONNECTOR
CABLE
or
CONVERSION
CONNECTOR
TO AL_3VSYS
TO IF_RX
TO IF_TX
TO GND
TO ENV_OUT
TO HID
MENU
SERVICE SUPPORT SYSTEM
COMMUNICATION
CABLE
JIG CONNECTOR
OSCILLOSCOPEJIG CONNECTOR
PERSONAL COMPUTER
BLUE
RED
WHITE
BLACK
COVER(ADJ)
7. CVF_R
13. IF_TX
24. COM_VF
25. FS_PLL
27. MAIN_VCO
28. IF_RX
29. AL_3VSYS
ADDITIONAL WIRE
20
19
18
17
16
15
14
13
12
11
MVD
V_OUT
CVF_G
CVF_R
CVF_B
XSTH
COM_VF
GND
FS_PLL
GND
HID
ATFI
MAIN_VCO
ENV_OUT
IF_RX
IF_TX
AL_3VSYS
IRU
KENTO
KENTO2
NC
AL_3VSYS
IF_RX
MAIN_VCO
HID
FS_PLL
COM_VF
CVF_B
CVF_G
-
NC
NC
NC
NC
NC
NC
NC
IF_TX
ENV_OUT
-
GND
GND
XSTH
CVF_R
-
NC
NC
NC
NC
NC
10
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
JIG CONNECTOR CABLE (YTU93106B)
MAIN CN102
JIG CONN. BOARD
(PIN NO.)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
IF_TX
ENV_OUT
GND
GND
XSTH
CVF_R
AL_3VSYS
IF_RX
MAIN_VCO
HID
FS_PLL
COM_VF
CVF_B
CVF_G
1
2
3
4
5
6
7
8
9
10
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
11
12
13
14
15
16
17
18
19
20

(No.YF124)1-19
4.3 MECHANISM COMPATIBILITY ADJUSTMENT
4.3.1 Tape pattern adjustment
NOTE:
Prior to the adjustment, remove the COVER (ADJ).
(1) Play back the compatibility adjustment tape.
(2) While triggering the HID, 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".
Flatten the waveform.
Misalignment of guide roller
height on the take-up side
Misalignment of guide
roller height on the
supply side
ENV_OUT
HID

1-20 (No.YF124)
SECTION 5
TROUBLE SHOOTING
5.1 SERVICE NOTE
[13]
3-2-4
[9]
VF1 VF2
[1] [2] [3] [4] [5] [6] [7] [8]
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
FA1-1 FA2-1 FA2-2
aba
FA2-3 FA2-4 FA3 FA4
e
ad
-
[9] [10] [11] [12] [13] [14] [15] [16]
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
FA5 FA6 FA7 FA8 FA9
ac
FA10
-
-
[4]
1 2 3 4
1 2 3 4 5 6
1 2 3 4 5 6 7 8 9
3-2-3
a
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
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
CABINET PARTS AND ELECTRICAL PARTS(1)
[4]MONITOR ASSY
[9]VF ASSY
CABINET PARTS AND ELECTRICAL PARTS(2)
NOTE:
㧝)㧖and㧖㧖(This mark shows where to attach the screws) : Do not reuse the screws because the screw lock bond was applied to prevent the screws from loosening.
Prepare the specified screws and use them in place of the removed screws.
㧞)Tightening torque for the screws
There are setting limits of the torque value for the torque driver. If the value exceeds the setting value, take it as a rough measurement (reference value),
and tighten the screw manually.
The specified torque value is a recommended value of the initial assembly. Therefore, set the value below the specified torque value in the assembling procedure.
Be careful not to break either the screws or the screw holes.
ޓa㧦0.098N㨯m (1.0kgf㨯cm)ޓޓb㧦0.196N㨯m (2.0kgf㨯cm)ޓޓc㧦0.088N㨯m (0.9kgf㨯cm)ޓޓd㧦0.147N㨯m (1.5kgf㨯cm)ޓޓe㧦0.069N㨯m (0.7kgf㨯cm)
[13]OP BLOCK ASSY/CCD BOARD ASSY
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