JVC GR-D750UC User manual

SERVICE MANUAL
COPYRIGHT© 2007 Victor Company of Japan, Limited No.YF173
2007/1
DIGITAL VIDEO CAMERA
YF17320071SERVICE MANUALBaby MoviE
GR-D750UC, GR-D750US,
GR-D770UC, GR-D770US,
GR-D771US, GR-D775US,
GR-D790US, GR-D796US
COPYRIGHT© 2007 Victor Company of Japan, Limited
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
GR-D771USM,GR-D775USM
GR-D790USM,GR-D796USM [M7D1S5]
GR-D770UCM,GR-D770USM
GR-D750UCM,GR-D750USM [M7D1S3]

1-2 (No.YF173)
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. 2.2 W (2.3 W*) (LCD monitor off, viewfinder on)
Approx. 2.7 W (2.8 W*) (LCD monitor on, viewfinder off)
Approx. 7.5 W (Maximum; when charging the battery pack)
* Using LED Light
Dimensions (W ×H ×D) 61 mm ×94 mm ×114 mm(2-3/8" ×3-11/16" ×4-1/2")
(with the LCD monitor closed and the viewfinder pushed back in)
Weight Approx. 410 g (0.90 lbs) (without battery, cassette and lens cap)
Approx. 480 g (1.06 lbs) (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 78.2 mm, 34:1 power zoom lens
Filter diameter Ø27 mm
LCD monitor 2.7" diagonally measured, LCD panel/TFT active matrix system
Viewfinder Electronic viewfinder with 0.16" color LCD
Speaker Monaural
LED Light Effective distance: 1.5 m (5 ft)
For Digital Video
Camera
Format DV forma t (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 : 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.YF173)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.YF173)
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.YF173)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 DIFFERENCE LIST
The following table indicate main different points between models GR-D750UC, GR-D750US, GR-D770UC, GR-D770US,
GR-D771US, GR-D775US, GR-D790US and GR-D796US.
MODEL NAME GR-D750UC GR-D750US GR-D770UC
DSC NO NO YES
USB TERMINAL
/USB CABLE
NO NO YES
CD-ROM NO NO YES
BATTERY PACK BN-VF808US BN-VF808US BN-VF808US
REMOTE CONTROL UNIT NO NO NO
MODEL NAME GR-D770US GR-D771US GR-D775US
DSC YES YES YES
USB TERMINAL
/USB CABLE
YES YES YES
CD-ROM YES YES YES
BATTERY PACK BN-VF808US BN-VF808US BN-VF808US
REMOTE CONTROL UNIT NO NO YES(RM-V740US)
MODEL NAME GR-D790US GR-D796US
DSC YES YES
USB TERMINAL
/USB CABLE
YES YES
CD-ROM YES YES
BATTERY PACK BN-VF808US BN-VF808US(×2)
REMOTE CONTROL UNIT YES(RM-V740US) NO

1-6 (No.YF173)
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 0.088N·m
(0.9kgf·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.YF173)1-7
3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS
zDisassembly procedure
NOTE1a:
When removing the screw(No.6), open the MONITOR ASSY.
When removing the UPPER ASSY, close the MONITOR ASSY.
NOTE1b:
When attaching, be careful with the wiring.
• Place the FPC(BUTTON) in the FOOK properly.
•
Place the WIRES(SPEAKER) properly between the GUIDE.
• Fold the FPC(JUNCTION) properly.
NOTE1c:
During the procedure, be careful not to damage the parts.
NOTE1d:
When attaching, fully pull up the KNOB(EJECT) to the OP
BLOCK as shown in the figure.
NOTE2:
When removing, remove the two screws (No.9, 10) with the
CASSETTE COVER open.
NOTE4a:
When removing, first pull out the FPC that connects the
CCD BOARD ASSY and the MAIN BOARD ASSY as the
FPC interferes with the procedure.
NOTE4b:
Refer to 3.2.3 DISASSEMBLY OF [4] VF ASSEMBLY for the
disassembly of VF ASSY.
NOTE5a:
When removing, be careful in handling the parts. Pay spe-
cial attention not to break fragile sections.
NOTE5b:
Screw No.15 is located under the COVER(JACK).
NOTE6a:
Be careful in handling the POWER UNIT as it consists of
three parts, and the parts are connected by the FPC.
NOTE6b:
When attaching, be sure to attach firmly.
NOTE8:
When attaching, be careful in wiring.
NOET9:
During the procedure, be careful not to damage the EJECT
SWITCH.
During the procedure, leave the CASSETTE COVER closed.
NOTE11a:
When attaching, do not connect the CCD MAIN BOARD
FPC to the MAIN BOARD first, connect the FPC after attach-
ing the VF ASSY.
NOTE11b:
Refer to 3.2.5 ASSEMBLY/DISASSEMBLY OF [11] OP
BLOCK ASSMBLY/CCD BOARD ASSEMBLY of OP BLOCK
ASSY.
NOTE14:
When removing, be careful not to damage the parts or cut the wires.
NOTE15:
During the procedure, be careful not to damage the parts.
When attaching, be careful with the wiring.
NOTE16a:
When attaching, be careful with the locations of the SWITCH
and the KNOB(VID/MEM SW). (DSC MODEL ONLY)
NOTE16b:
During the procedure, be careful not to damage the SWITCH.
When attaching, leave the MONITOR ASSY open.
NOTE16c:
When attaching, be careful with the wiring of the WIRE
(SPEAKER).
NOTE17:
When removing, push the COVER from the backside, and
be careful in handling the parts.
NOTE18:
Refer to 3.2.4 DISASSEMBLY OF [18] MONITOR ASSEM-
BLY for the disassembly of the MONITOR ASSY.
NOTE19a:
During the procedure, be careful in handling the parts.
NOTE19b:
When attaching, be careful with the wiring and the attach-
ment locations of the parts.
zDestination of connectors
UPPER ASSY
CASS.COVER
TOP COVER
VF ASSY
LOWER ASSY
POWER UNIT
FRONT ASSY
MIC
REAR COVER ASSY
REAR BOARD ASSY
REAR BOARD ASSY
OP BLOCK ASSY
BKT TOP
MAIN BOARD ASSY
MECHANISSM ASSY
STEP
No. PART NAME Fig. No. POINT NOTE
BUTTON UNIT
JUNCTION BOARD ASSY
COVER UPPER
MONITOR ASSY
SPEAKER
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
/[10]
[10]
[11]
[12]
[13]
[14]
2(S1a),2(S1b),3(S1a),(S1d),
L1a,b,c,d,e,f,g,3(L1h),L1j,CN1
2(L2a),4(S2),3(L2b)
2(S3),2(L3)
CN4a,b,S4a,S4b
COVER(JACK),CN5,2(S5a),
S5b,S5c,2(S5b),2(L5)
2(S6),2(L6a),2(L6b),L6c
S7,L7a,b,CN7
S8,PLATE(MIC)
2(S9),L9a,b,CN9
S10
CN11,2(L11)
4(S12),2(L12a),L12b
CN13a,b,c,d,e,S13,L13
L14,4(S14)
FA1-1
FA1-2
FA2
FA3
FA4
FA5
FA6
FA7
-
FA8
FA9
FA10
FA11
NOTE1a,b,c,d
NOTE2
-
NOTE4a,b
NOTE5a,b
NOTE6a,b
-
NOTE8
NOTE9
-
NOTE11a,b
-
NOTE14
[15]
[16]
[17]
[18]
[19]
CN15,L15a,S15,L15,b,c,d,e,
CN16a,b
2(S17)
2(S18),2(L18)
5(S19),L19a,b,c,d,BKT(HINGE),
KNOB(SILDE),KNOB(EJIECT),
BKT(GROUND)
UA1
UA2
UA3
NOTE15
NOTE16a,b,c
NOTE17
NOTE18
NOTE19a,b
CN1 MAIN CN103 JUNCTION CN401 26
CN4a MAIN CN4201 CCD CN5001 20
CN4b MAIN CN7801 VF CN7001 18
CN5 MAIN CN105
POWER UNIT - 12
CN7 MAIN CN2601 MIC - 4
CN9 MAIN CN101/CN106 REAR CN501/CN504 40/34
CN11 MAIN CN4901 OP BLOCK ASSY
- 26
CN13a MAIN CN1604 SENSOR - 16
CN13b MAIN CN1603 CAPSTAN MOTOR
- 18
CN13c MAIN CN1602 DRUM MOTOR - 11
CN13d MAIN CN3501 HEAD - 8
CN13e MAIN CN1601 LOADING MOTOR
-8
/ROTARY ENCODER
CN15 JUNCTION CN403 BUTTON UNIT - 6
CN16a JUNCTION CN404 SPEAKER - 2
CN16b JUNCTION CN402 MONITOR CN7601 22
CN.
No.
PIN
No.
CONNECTOR

1-8 (No.YF173)
Fig.FA1-1
Fig.FA1-2
Fig.FA2
Fig.FA3
6
(S1b)
5
(S1a)
1
(S1a)
2
(S1a)
3
(S1b) 4
(S1b)
MONITOR
ASSY
L1b
L1c
L1d
NOTE1a
NOTE1d
<NOTE1b>
[1]
FPC(JUNC)
WIRE
FPC(BUTTON)
CN1
L1j
L1a
L1h
L1g
L1f
L1e
GUIDE
FOOK
NOTE1c
[2]
7
(S2)
8
(S2)
10
(S2)
L2a
LEVER
L2b
9
(S2)
9
(S2)
NOTE2
[3]
11
(S3)
L3
12
(S3)

(No.YF173)1-9
Fig.FA4
Fig.FA5
Fig.FA6
Fig.FA7
[4]
13
(S4a)
14
(S4b)
<NOTE4a>
NOTE4a
NOTE4b
CN4b
L4
CN4a
CN4a
CN4b
CN5
COVER(JACK)
<NOTE5b>
[5]
19
(S5b)
18
(S5c)
L5
17
(S5b)
17
(S5b)
15
(S5a)
15
(S5a)
16
(S5a)
16
(S5a)
20
(S5b)
NOTE5a
NOTE5b
[6]
< NOTE6a >
21
(S6)
21
(S6)
22
(S6)
22
(S6)
L6c
NOTE6a
NOTE6b
L6a
L6b
[7] CN7
L7a
L7b
[7] [8]
PLATE(MIC)
< NOTE8 >
WIRE(MIC)
WIRE(MIC)
23
(S7)
23
(S7)
24
(S8)

1-10 (No.YF173)
Fig.FA8
Fig.FA9
Fig.FA10
Fig.FA11
[10]
25
(S9)
26
(S9)
25
(S9)
26
(S9)
CN9
[9]
[9]
[10]
27
(S10)
L9a
L9b
NOTE9
EJECT SW
[11]
[12]
28
(S12)
31
(S12)
29
(S12)
L11
CN11
L12b
L12a
30
(S12)
NOTE11b
NOTE11a
CN13b
CN13c
CN13d
CN13e
<MECHA SIDE>
L13
32
(S13)
CN13a
CN13b
CN13c
CN13d
CN13e
[13]
33
(S14)
L14
35
(S14)
34
(S14)
[14]
36
(S14)
FRAME ASSY
:0.068N m(0.7kgf cm)

(No.YF173)1-11
Fig.UA1
Fig.UA2
Fig.UA3
[16]
37
(S15)
38
(S16)
39
(S16)
CN16b
L15b
L15c
L15a L16
L15d CN15
L15e
WIRE(SPEAKER)
NOTE15
NOTE16c
NOTE16a
NOTE16b
MONI SW
VID/MEM SW
CN16a
L16
<NOTE16c>
[15]
:0.059N m(0.6kgf cm)
43
(S18)
L18
42
(S18)
41
(S17)
40
(S17)
[17]
[18]
NOTE18
:0.039N m(0.4kgf cm)
44
(S19)
L19a
L19b
45
(S19)
46
(S19) 47
(S19)
48
(S19)
[19]
BKT(HINGE)
KNOB(SLIDE)
KNOB(EJECT)
BKT(GROUND)
NOTE19a
NOTE19a
NOTE19a
NOTE16c
NOTE19b
:0.078N m(0.8kgf cm)

1-12 (No.YF173)
3.2.3 DISASSEMBLY OF [4] VF ASSEMBLY
zBefore disassembly
As the VF ASSY has complicated structure, do not disassem-
ble if not needed.
When assembling, be careful to prevent dust or any foreign
materials from entering inside, and avoid soils on both the
LENS and the SHEET.
zDisassembly procedure
(1) Pull out the CASE(VF) from the VF ASSY, remove the
screw (1), and then remove the EYE CUP.
(2) Remove the screw (2), and remove the BKT.(COVER).
(3) Peel off the FPC, and then remove the CASE(VF).
NOTE4a:
During the procedure, be careful in handling the FPC.
(4) Set the LEVER(VF) to the TRIANGLE MARK( ) of the
CASE(VF), and then remove the LENS ASSY.
NOTE4b:
During the procedure, be careful in handling the parts.
Pay special attention not to damage, soil, or leave fin-
gerprints on the surface.
NOTE4c:
After attaching the LENS ASSY, rotate the LE-
VER(VF) counterclockwise to check the smooth slid-
ing operation of the LENS ASSY.
(5) Press hooks (L4c,d) on both sides of the HOLD-
ER(LCD)to remove the LCD SA from the CASE(VF).
NOTE4d:
During the procedure, be careful not to damage the VF
SWITCH.
NOTE4e:
Refer to Fig. 3-2-4-2 for the disassembly of the LCD
SA, and disassemble the LCD SA if necessary.
During the procedure, be careful to prevent dust or any
foreign materials from entering inside.
NOTE4f:
During the procedure, be careful not to damage the
parts.
Fig.3-2-4-1
0.069N࡮m(0.7kgf࡮cm)
<NOTE4c> <NOTE4a>
L4b
L4a
2
(S4a)
1
(S4a)
3
(S4b)
NOTE4b
FPC
NOTE4a
bb
a
MARKING
LEVER(VF)
CASE(VF)
LENS ASSY
COVER(SLIDE)
BKT.(COVER)
EYE CUP
TRIANGLE MARK( )

(No.YF173)1-13
Fig.3-2-4-2
<LCD SA>
CASE(B.LIGHT)
VF BOARD ASSY
VF SW
L4d
L4f
L4g
L4h
L4e
L4c
CASE(VF)
LCD SA
STOPPER(POLA)
CUSHION(2)
SHEET(POLA)
SHEET(DIFF.)
SHEET(POLA)
CUSHION(1)
LCD MODULE
HOLDER(LCD)
FPC
CN4
NOTE4f
NOTE4d
NOTE4e

1-14 (No.YF173)
3.2.4 DISASSEMBLY OF [18] 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 ASSY 90°, and Remove the
M.COVER ASSY by removing the six hooks (L4a-f).
(2) Release the lock of the connector (CN18a), and remove
the HINGE UNIT by lifting it up.
NOTE18a:
During the procedure, be careful in handling the FPC.
(3) Release the lock of the connector (CN18b), and pull out
the FPC.
(4) Remove the screw (3), and remove the MONI BOARD
ASSY .
NOTE18b:
When attaching the MONITOR BOARD ASSY, be
careful to avoid any misalignment or unevenness of
the parts underneath.
Attach the MONITOR BOARD ASSY by lifting up the
MONITOR CASE as the KNOB (CURSOR) that is at-
tached to the BOARD sticks out toward the LCD
screen.
(5) Remove the SHEET (M.REF), LIGHT GUIDE, SHEET
(M.DIFF) and the SHEET(BEF).
(6) Remove the SHILD CASE(MONI), LCD MODULE and
the LCD CASE.
NOTE18c:
During the procedure, handle the three parts (LCD
CASE, LCD MODULE, and SHILD CASE(MONI)) to-
gether.
zRemoving HINGE UNIT ASSEMBLY
(1) Remove the screw (4), and remove the H.COVER(U,L).
NOTE18d:
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.
NOTE18e:
During the procedure, be careful in handling the FPC.
NOTE18f:
The FPC is rolled around the axis of rotation of the
HINGE ASSY 2.5 rounds (2.5times).
The connecting side to the MONITOR BOARD ASSY
is placed inside.

(No.YF173)1-15
Fig.3-2-3
0.069 N࡮m (0.7kgf࡮cm)
0.078 N࡮m (0.8kgf࡮cm)
[18]
NOTE18a
b
bb
a
MONITOR BOARD
ASSY
HINGE ASSY
M.COVER ASSY
SHEET(M.REF)
LIGHT GUIDE
SHEET(M.DIFF)
SHEET(BEF)
S.CASE(MONI)
LCD MODULE
LCD CASE MONITOR CASE
H.COVER(U)
HINGE ASSY
H.COVER(L)
P.C.MAGNET
1
(S18a) 2
(S18a)
3
(S18b)
4
(S18c)
CN18a
CN18b
aa
NOTE18e,f
FPC
MONITOR CASE SIDE
SUPPORT PLATE
SIDE
M.COVER ASSY SIDE
NOTE18b
LCD CASE
LCD MODULE
S.CASE(MONI)
NOTE18c
L18h
L18k
L18j
L18aL18bL18e
L18f
L18g
L18d L18c
P.C.MAGNET
H.COVER(L)
N pole S pole
<NOTE18d>
<NOTE18c>
KNOB(CURSOL)

1-16 (No.YF173)
3.2.5 ASSEMBLY/DISASSEMBLY OF [11] OP BLOCK ASSMBLY/CCD BOARD ASSEMBLY
zPrecautions
(1) Be careful in handling the CCD IMAGE SENSOR, OPTI-
CAL LPF and the LENS components. Pay special atten-
tion not to soil or damage the surfaces., especially with
regard to surface contamination, attached dust or
scratching. If fingerprints 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 ASSY.
(3) As the CUSHION(OP) protects the OP BLOCK ASSY
from scratches or damages, leave the CUSHION as
long as it does not interfere with the procedure.
zDisassembly of OP BLOCK ASSEMBLY / CCD BOARD AS-
SEMBLY
(1) Unsolder the fourteen soldered points (SD11a) of the
CCD BOARD ASSY.
(2) Remove the two screws (1,2), and then remove the CCD
BOARD ASSY and the CCD BASE ASSY.
NOTE11a:
When removing the CCD BASE ASSY, be careful in
handling as the CCD IMAGE SENSOR may be re-
moved together with the SHEET and the OP LPF at-
tached.
NOTE11\b:
Replace the CCD IMAGE SENSOR as a CCD BASE
ASSY, not as a single part replacement.
zAssembly of OP BLOCK ASSEMBLY / CCD BOARD AS-
SEMBLY
(1) Set the OPTICAL LPF first, and then the SHEET to the
OP BLOCK ASSY.
NOTE11c:
Be careful with the attachment direction of the OP
LPF.
(2) Attach the CCD BASE ASSY first, then the CCD BASE
ASSY so that the SHEET stays in place, and then tighten
with the two screws (1, 2).
(3) Solder the 14 points (SD11a) on the CCD BOARD AS-
SY.
zReplacement of service repair parts
The service repair parts for the OP BLOCK ASSY are as listed
below.
When replacing parts, be careful not to cut the FPCs or dam-
age any parts by soldering (excessive heat).
(1) FOCUS MOTOR UNIT
(2) ZOOM MOTOR UNIT
(3) IRIS MOTOR UNIT
NOTE 13e:
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 13f:
The IRIS MOTOR UNIT includes the FPC ASSY and two
sensors.
Fig.3-2-4
NOTE11c
CCD BOARD ASSY
CCD BASE ASSY
SHEET
OPTICAL LPF
CUSHION(OP)
2
(S11a)
SD11
1
(S11a)
3
(S11b)
4
(S11b)
ZOOM MOTOR UNIT
NOTE11d,e
IRIS MOTOR UNIT
NOTE11d,e
SENSOR
SD11b
5
(S11b)
7
(S11b)
8
(S11b)
9
(S11b)
6
(S11b)
NOTE11d,e
FOCUS
MOTOR UNIT
NOTE11a,b
0.147N࡮m (1.5kgf࡮cm)

(No.YF173)1-17
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
• MONITOR ASSEMBLY
• VF 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.
Service Support System
YTU94057-99
Torque Driver
YTU94088
Bit
YTU94088-003
Chip IC Replacement Jig
PTS40844-2
Tweezers
P-895
Cleaning Cloth
KSMM-01
Charing Battery Adjuatment Jig
YTU93112A
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
Focus Chart
YTU92001-018
Guide Driver
YTU94148A-1
Mini Stand
YTU93108

1-18 (No.YF173)
•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.
•Focus 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.
•Charging Battery Adjustment Jig
This Jig is used for the adjustment of the camcorders that have
Main Body battery charging function.

(No.YF173)1-19
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 2pins (13 and 28) need
to be soldered and extended with the wires for adjustment
and checking.
See Fig. 4-2-1 for details.
Fig.4-2-1
Connection procedure
Remove the screw (1-4), and remove the CASS.COVER.
Fig.4-2-2
: ADDITIONAL WIRE
13
22pin -
23pin -
26pin HID
28pin IF_RX
29pin AL_2.8VSYS
8pin CVF-G
9pin GND
5pin NC
13pin IF_TX
12pin ENV_OUT
10pin GND
28
<COMPONENT SIDE>
<FOIL SIDE>




GUIDE ROLLER (TU)
GUIDE ROLLER (SUP)
CASS.COVER
PC CABLE
COVER(JIG CON)
JIG CONNECTOR
COMMUNICATION
CABLE
COMMUNICATION
JIG CONNECTOR
CABLE
JIG CONNECTOR
CONVERSION
CONNECTOR
TO ENV_OUT
TO HID
MENU
RS232C
COM PORT
SERVICE SUPPORT SYSTEM
OSCILLOSCOPEJIG CONNECTOR
PERSONAL COMPUTER
CABLE
TO AL_2.8VSYS
TO IF_RX
TO IF_TX
TO GND
BLUE
RED
WHITE
BLACK

1-20 (No.YF173)
Jig connector diagrams
Fig.4-2-3
Conversion Connector
Fig.4-2-4
4.3 MECHANISM COMPATIBILITY ADJUSTMENT
4.3.1 Tape pattern adjustment
NOTE:
Prior to the adjustment, remove the CASS.COVER.
(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".
13. IF_TX
28. IF_RX
ADDITIONAL WIRE
20
19
18
17
16
15
14
13
12
11
MVD
V_OUT
-
-
-
CVF_G
COM_VF
GND
FS_PLL
GND
HID
ATFI
MAIN_VCO
ENV_OUT
IF_RX
IF_TX
AL_2.8VSYS
IRU
KENTO
KENTO2
NC
AL_2.8VSYS
IF_RX
NC
HID
NC
NC
-
-
NC
NC
NC
NC
NC
NC
NC
NC
IF_TX
ENV_OUT
NC
GND
GND
CVF_G
-
NC
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
KENTO2
IRU
IF_TX
ENV_OUT
ATFI
GND
GND
CVF_G
-
V_OUT
KENTO
AL_2.8VSYS
IF_RX
MAIN_VCO
HID
FS_PLL
COM_VF
-
-
MVD
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
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