JVC GR-D270US User manual

SERVICE MANUAL
COPYRIGHT © 2005 Victor Company of Japan, Limited No.YF075
2005/2
DIGITAL VIDEO CAMERA
YF07520052
GR-D270US, GR-D271US,
GR-D275US, GR-D290US,
GR-D295US
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700(MECHANISM ASSEMBLY).
TABLE OF CONTENTS
1 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
GR-D270US, GR-D271US, GR-D275US[M5D2S5]
GR-D290US, GR-D295US[M5D2S7]

1-2 (No.YF075)
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 11.0 V(Using AC Adapter)
DC 7.2 V (Using battery pack)
Power consumption Approx. 3.2 W (3.5 W*) (LCD monitor off, viewfinder on)
Approx. 4.2 W (4.5 W*) (LCD monitor on, viewfinder off)
Approx. 6.5 W (Maximum; when charging the battery pack)
* Using LED Light
Dimensions (W ×H ×D) 56 mm ×94 mm ×112 mm(2-1/4" x 3/4" x 7/16")
(with the LCD monitor closed and the viewfinder pushed back in)
Weight Approx. 430g (0.95 lbs)
(without battery, cassette, memory card and lens cap)
Approx. 510 g (1.1 lbs)
(incl. battery, cassette, memory card 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 1.8, f = 2.2 mm to 55 mm, 25:1 power zoom lens
Filter diameter Ø27 mm
LCD monitor 2.5" diagonally measured, LCD panel/TFT active matrix system
Viewfinder Electronic viewfinder with 0.16" 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 : 2 modes (1024 ×768 pixels/640 ×480 pixels)
Picture quality 2 modes (FINE/STANDARD)
For Connectors AV Video output 1.0 V (p-p), 75Ω, analogue
Audio output 300 mV (rms), 1 kΩ, analogue, stereo
DV Input/output 4-pin, IEEE 1394 compliant
USB Mini USB-B type, USB 1.1/2.0
(Full speed for GR-D270, High speed for GR-D290) compliant
Power requirement AC 110 V to 240 V, 50 Hz/60 Hz
Output DC 11 V, 1 A

(No.YF075)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 sleev
e
Conductors extended
Wire insulation recessed
more than 4 mm

1-4 (No.YF075)
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.YF075)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 DIFFERENCE LIST
The following table indicate main different points between models GR-D270US, GR-D271US, GR-D275US, GR-D290US and
GR-D295US.
MODEL GR-D270US GR-D271US GR-D275US GR-D290US GR-D295US
DSC FLASH MEMORY
(MEMORY CARD) NO NO NO MMC(8MB) NO
REMOTE CONTROL NO RM-V720US RM-V720US RM-V720US RM-V720US

1-6 (No.YF075)
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 0.092N·m
(0.94kgf·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
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
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.
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)
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.YF075)1-7
3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS
zDisassembly procedure
NOTE1a:
During the procedure, remove the GRIP BELT.
NOTE1b:
Remove the screw (3) by pulling the COVER (SD) ASSY.
NOTE2a:
Remove the MONITOR ASSY by slightly lifting L2, with the
CASSETTE COVER open.
NOTE2b:
When attaching the MONITOR ASSY, be careful not to dam-
age the MONI SW.
NOTE4a:
Remove L4a by slightly lifting the REAR UNIT.
NOTE4b:
Be careful not to damage the connector.
NOTE4c:
When attaching the MONITOR ASSY, be careful not to dam-
age the EJECT SW.
Attach the MONITOR ASSY, with the CASSETTE COVER
closed.
NOTE10:
When attaching, firmly press the SHIELD COVER (PR) over
the FPC.
zDestination of connectors
Fig.FA1
STEP
No. PART NAME Fig. No. POINT NOTE
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
TOP COVER ASSY
MONITOR ASSY
VF ASSY
LOWER UNIT ASSY
REAR UNIT
FRONT COVER ASSY
OP BLOCK ASSY
MAIN BOARD ASSY
FRAME(Z27) ASSY
SIELD COVER(PR)
PRE/MDA BOARD ASSY
MECHA(B) ASSY
GRIP BELT,S1a,S1b,S1c,L1a,b,c,d,e,f
S2a,5(S2b),CASSETTE COVER,S2c,
S2d,L2,CN2
2(S3a),2(S3b),L3,CN3
S4a,S4b,L4a,b,CN4a,b
L5a,b,CN5a,b
S6,L6a,b,c,CN6a,b,2(S6b),PLATE(MIC),
MIC,L6e,d,FRONT BOARD ASSY
CN7a,CN7b
S8,L8a,b,CN8a,b
3(S9)
2(S10), L10
CN11a,b,c,d,e,f,2(S11)
-
FA1
FA2
FA3
FA4
FA5-1,2
FA6
FA7
FA8
NOTE1a,b
NOTE2a,b
-
NOTE4a,b,c
-
-
-
-
-
NOTE10
-
-
CN.NO. CONNECTOR PIN
NO.
CN2 OPE CN301 MAIN CN110 26
CN3 MAIN CN108 VF CN7001 16
CN4a MAIN CN109 ZOOM UNIT - 12
CN4b MAIN CN112 SPEAKER - 2
CN5a MAIN CN107 REAR UNIT - 40
CN5b MAIN CN111 SD CN901 12
CN6a MAIN CN103 FRONT CN701 17
CN6b MAIN CN114 INT MIC - 4
CN7a MAIN CN101 CCD - 20
CN7b MAIN CN102 OP BLOCK - 24
CN8a MAIN CN105 PRE/MDA CN408 40
CN8b MAIN CN104 PRE/MDA CN401 40
CN11a PRE/MDA CN406 SENSOR - 16
CN11b PRE/MDA CN405 CAPSTAN MOTOR - 18
CN11c PRE/MDA CN404 DRUM MOTOR - 11
CN11d PRE/MDA CN402 HEAD - 8
CN11e PRE/MDA CN407 ROTARY ENCODER SW - 6
CN11f PRE/MDA CN403 LOADING MOTOR - 6
GRIP BELT
[1]
1
(S1a)
2
(S1b)
3
(S1c)
COVER(SD) ASSY
L1f
L1b
L1a
L1d
L1c
L1e
NOTE1a NOTE1b

1-8 (No.YF075)
Fig.FA2
Fig.FA3
Fig.FA4
Fig.FA5-1
MONI. SW
CN2
NOTE2b
CASSETTE COVER
[2]
a
a10
(S2c)
COVER(SD)
ASSY
11
(S2d)
5
(S2b)
6
(S2b)
7
(S2b)
8
(S2b)
9
(S2b)
BOTTOM VIEW
L2
NOTE2a
4
(S2a)
BOTTOM VIEW
[4]
[3]
a
CN3
CN3
CN4a
CN4a
CN4b
<NOTE4a>
NOTE4a
NOTE4b
NOTE4c
CN4b
12
(S3a)
13
(S3a)
17
(S4)
15
(S3b)
14
(S3b)
16
(S4)
b
cba
c
12
16
L4a
REAR UNIT
REAR UNIT
L3
L3
EJECT SW L4b
[5]
CN5a
CN5b
L5a
L5a
[7]
a
a
[6]
CN6b
CN6a
CN7a
CN7b
18
(S6)
L6a
L6b
L6c

(No.YF075)1-9
Fig.FA5-2
Fig.FA6
Fig.FA7
Fig.FA8
MIC
FRONT BOARD
ASSY
FRONT COVER
ASSY
PLATE
(MIC)
19
(S6b)
20
(S6b)
L6e
L6d
21
(S8)
CN8b
CN8a
[8]
L8a
L8b
FPC
SHIELD
COVER(PR)
[10]
24
(S9)
22
(S9)
23
(S9)
26
(S10)
25
(S10) [9]
㧦0.078N㨯m (0.8kgf㨯cm)
㧦0.069N㨯m (0.7kgf㨯cm)
L10
NOTE10
a
b
c
d
e
f
[12]
[11]
28
(S11)
27
(S11)
CN11b
CN11c
CN11d CN11f
CN11e
CN11a
a
b
cd
e
f

1-10 (No.YF075)
3.2.3 ASSEMBLY/DISASSEMBLY OF [2] MONITOR ASSEMBLY
zCAUTIONS
(1) Remove the MONITOR ASSEMBLY from the UPPER
CASE ASSEMBLY first, as they are removed together in
main parts disassembly, and then proceed to the disas-
sembly procedure.
(2) 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.
(3) Since the BACKLIGHT is soldered to the BOARD AS-
SEMBLY (SD2), they should be removed together ex-
cept for the replacement.
zRemoving MONITOR ASSEMBLY
(1) Remove the screw (1), and remove the BKT (OPE).
(2) Remove the two screws (2 and 3).
(3) Remove the screw (4), free the OPE BOARD ASSEM-
BLY, and pull out the FPC from the connector (CN2a).
NOTE2a:
Although the MONITOR ASSEMBLY can be removed
with the FPC attached to the OPE BOARD ASSEM-
BLY, remove the OPE BOARD ASSEMBLY consider-
ing the workability and the cut/ break of FPC.
(4) Remove the two screws (5 and 6), and remove the COV-
ER HINGE.
(5) Remove the two screws (7 and 8), and remove the MON-
ITOR ASSEMBLY.
NOTE2b:
When removing, be careful not to damage the FPC
ASSEMBLY.
zDisassembly of MONITOR ASSEMBLY
(1) Remove the three screws (9-11), and remove the MON-
ITOR COVER ASSEMBLY by disengaging the five
hooks (L2c,d,e,f and g).
(2) Pull out the U/D SWITCH BOARD from the MONITOR
CASE ASSEMBLY.
(3) Release the lock of the connector (CN2b), and remove
the HINGE UNIT by lifting it up.
NOTE2c:
During the procedure, be careful in handling the FPC
ASSEMBLY.
(4) Release the lock of the connector (CN2c), and pull out
the FPC.
(5) Remove the screw (12).
(6) Remove the MONITOR BOARD ASSEMBLY and the
BACK LIGHT together.
NOTE2d:
Since the BACKLIGHT is soldered to the BOARD AS-
SEMBLY (SD2), they should be removed together ex-
cept for the replacement.
(7) Remove the DIFF. SHEET and the SPACER (LCD).
(8) Remove the LCD MODULE.
(9) Remove the SPRING (LCD), and remove the SHIELD
CASE.
NOTE2e:
As the SPRING (LCD) is for the LCD MODULE posi-
tioning and holding, do not remove it if not needed.
Fig.3-2-3-1
Fig.3-2-3-2
FPC ASSY
4
(S2b)
3
(S2b)
2
(S2b)
1
(S2a)
CN2a
NOTE2a
L2a
L2b
OPE BOARD ASSY
BKT(OPE)
㧦0.98N㨯m (1.0kgf㨯cm)
COVER
(HINGE)
5
(S2) 6
(S2)
㧦0.98N㨯m (1.0kgf㨯cm)

(No.YF075)1-11
Fig.3-2-3-3
NOTE2a
NOTE2c
NOTE2e
NOTE2e
NOTE2d
a
a
L2c L2d L2e
L2f
L2g
L2h
MONITOR ASSY
UPPER CASE ASSY
8
(S2c) 7
(S2c)
9
(S2d)
10
(S2d) 11
(S2d)
12
(S2d)
b
c
bb
CN2b
CN2c
dc
MONITOR CASE ASSY
MONITOR COVER ASSY
MONITOR BOARD ASSY
BACKLIGHT ASSY
SPACER(LCD)
LCD MODULE
SHIELD CASE
DIFF. SHEET
(should put this part at right side)
MONI. HINGE
ASSY
U/D SW
d
a
b
BOTTOM VIEW
SPRING(LCD)
a
bb
NOTE2b
SD2
SD2
㧦0.98N㨯m (1.0kgf㨯cm)

1-12 (No.YF075)
3.2.4 ASSEMBLY/DISASSEMBLY OF [7] OP BLOCK ASSMBLY/CCD BOARD ASSEMBLY
zPrecautions
(1) Take care in handling the CCD IMAGE SENSOR, OP
LPF and lens components when performing mainte-
nance etc., especially with regard to surface contamina-
tion, 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 ASSEMBLY.
(3) The orientation of the OP LPF is an important factor for
installation. If there is some marking on the OP LPF, be
sure to note it down before removing and to reassemble
it very carefully as it was referring to the marking.
zDisassembly of CCD BOARD ASSEMBLY and CCD BASE
ASSEMBLY
(1) Unsolder the CCD BOARD ASSEMBLY by the 14 points
(SD7a) and then remove it.
(2) Remove the two screws (1, 2) and remove the CCD
BASE ASSEMBLY.
(3) Remove the SPACER.
(4) Remove the SHEET.
(5) Remove the OP LPF.
zAssembly of CCD BASE ASSEMBLY and CCD BOARD AS-
SEMBLY
(1) Set the OP LPF to the OP BLOCK ASSEMBLY so that
the OP side touches the OP BLOCK ASSEMBLY.
NOTE7a:
Pay careful attention to the orientation of the OP LPF.
(2) Set the SHEET to the OP LPF not to come off the right
position.
(3) Attach the SPACER to the OP BLOCK ASSEMBLY.
(4) Fasten them together with the two screws (1, 2).
(5) Set the CCD BOARD ASSEMBLY in the CCD BASE AS-
SEMBLY, and then solder it by the 14 points (SD7a).
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 7b:
When replacing the FOCUS MOTOR UNIT or the ZOOM
MOTOR UNIT, solder the FPC at a space of about 1 mm
above the terminal pin.
NOTE 7c:
The AUTO IRIS UNIT includes the FPC ASSEMBLY and
two sensors.
Fig.3-2-4
SPACER
CCD BASE ASSY
OP LPF
OP BLOCK
ASSY
SHEET
CCD
BOARD ASSY
1
(S7a)
3
(S7b)
4
(S7b)
5
(S7b)
7
(S7b)
8
(S7b)
9
(S7b)
11
(S7b)
10
(S7b)
6
(S7b)
2
(S7a)
OP
side
CCD
side
Blue
NOTE7b,c
AUTO IRIS UNIT
SENSOR
0.078N࡮m (0.8kgf࡮cm)
0.118N࡮m (1.2kgf࡮cm)
SD7a
SD7b
SD7b
NOTE7b
FOCUS MOTOR UNIT
ZOOM MOTOR UNIT
NOTE7b
NOTE7a

(No.YF075)1-13
3.2.5 ASSEMBLY/DISASSEMBLY OF [3] VF ASSEMBLY
zBefore disassembly
As the VF ASSEMBLY has complicated structure, do not dis-
assemble if not needed.
Inside the VF is divided into two units: LCD SA/ LENS SA, and
each unit is made up of several parts.
Disassemble the VF ASSEMBLY if necessary. When assem-
bling the VF ASSEMBLY,
When assembling the VF ASSEMBLY, pay special attention to
the foreign materials (dusts etc.) inside the ASSEMBLY, and
the soils on both the LENS and the SHEET.
zDisassembly of the CABINET PARTS
(1) Remove the screw (1), and free the SW BOARD ASSY.
(2) Remove the two screws (2 and 3), and remove the VF
ASSEMBLY.
NOTE3a:
During the procedure, be careful not to break the FPC.
(3) Remove the two screws (4 and 5), and remove the UP-
PER CASE (VF).
(4) Remove the FPC from the BOTTOM CASE (VF) to make
the FPC free, and remove the LCD SA/LENS SA.
NOTE3b:
During the procedure, be careful not to break the FPC.
NOTE3c:
When attaching, be careful with the positioning of the
LEVER (VF) and the handling of the FPC.
zDisassembly of LCD SA/LENS SA
(1) Remove the two hooks (L3c and d) on the both sides,
and remove the LENS SA from the LCD SA.
NOTE3d:
Refer to the Fig.VF2 for the disassembly of the LCD SA
and the LENS SA, do not disassemble unless it is needed.
NOTE3e:
During the procedure, be careful in handling the parts.
Pay special attention not to damage, soil, or leave fin-
gerprints on the surface.
NOTE3f:
When attaching the LEVER VF, be careful in position-
ing with the LENS ASSY. Attach the LEVER VF by
pulling the LENS ASSY to the EYE CUP side.
After the attachment, check whether the sliding opera-
tion is smooth.
NOTE3g:
When disassembling, be careful not to lose any parts.
Fig.VF1
L3a
L3b
FPC
NOTE3a
<TOP VIEW>
SUPPORT
PLATE
NOTE3a
NOTE3b
<NOTE3a,b>
FPC
NOTE3c
BKT(HOLDER)
BOTTOM
CASE
(VF)
UPPER
CASE
(VF)
GUIDE(CASE)
BKT(HINGE VF)
ASSY
VF BOARD ASSY
2
(S3a) 3
(S3a)
4
(S3a)
5
(S3a)
CN3a
NOTE3b
1
(S3a)
LEVER
SWITCH
SW BOARD ASSY
1
(S3a)
0.069N࡮m (0.7kgf࡮cm)

1-14 (No.YF075)
Fig.VF2
NOTE3c
NOTE3d
L3c
L3d
L3f
L3e
STOPER(POLA)
SHEET(POLA.2)
HOLDER(LCD)
GUIDE(LCD)
LCD MODULE
CUSHION(LCD)
SHEET(POLA.1)
SHEET(DIFF)
CASE(B.LIGHT)
LEVER(VF)
GUIDE(LENS)
LENS ASSY
COMPRESION SPRING
SHAFT(VF)
HOLDER(EYE)
SHEET(LENS)
EYE CUP
<LENS SA>
<LCD SA>
NOTE3e
NOTE3e,f
NOTE3g
NOTE3e
NOTE3e
NOTE3e
NOTE3e
NOTE3e
L3g
L3h
L3j
L3m
L3k
L3p
L3n
LCD SA
LENS SA

(No.YF075)1-15
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 (IC1005ofMAIN 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.
Service Support System
YTU94057-85
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
QAM0099-002
Extension Connector
YTU94145D-40
Extension Connector
YTU94145E-40
Jig Connector Cable
YTU93106C
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 (Hexagonal)
D-770-1.27

1-16 (No.YF075)
•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 (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 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.
•Camera stand
To be used together with the INF adjustment lens holder. For
the usage of the Camera stand, refer to the Service Bulletin
No. YA-SB-10035.
•Light box assembly
To be used for adjustment of the camera system. For the
usage of the Light box assembly, refer to the Service Bulletin
No. YA-SB-10035.
•Gray scale chart
To be used for adjustment of the camera system. For the
usage of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
•Color bar chart
To be used for adjustment of the camera system. For the
usage of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
•Alignment tape
To be used for check and adjustment of interchangeability of
the mechanism.
•PC cable
To be used to connect the Videocamera and a personal computer
with each other when a personal computer issued for adjustment.
•Communication cable
Connect the Communication cable between the PC cable and
Jig connector cable when performing a PC adjustment.
•Service support system
To be used for adjustment with a personal computer. Software
can be downloaded also from JS-net.
•Jig connector cable
Connected to JIG CONNECTOR of the main board and used
for electrical adjustment, etc.
•Extension connector
Connect this extension connector to the connector of the Jig
connector cable for extending the cable connector.
4.2 JIG CONNECTOR CABLE CONNECTION
Connection procedure
Fig.4-2-1
PC CABLE
FOR
COMMUNICATION CABLE
COVER(JIG CON)
JIG CONNECTOR
COMMUNICATION CABLE
JIG CONNECTOR
CABLE
EXTENSION
CONNECTOR
TO JLIP_RX
TO JLIP_TX
TO GND
TO ENV_OUT
TO HID
MENU
RS232C
COM PORT
SERVICE SUPPORT SYSTEM
COMMUNICATION CABLEJIG CONNECTOR OSCILLOSCOPEJIG CONNECTOR
PERSONAL COMPUTER
RED
WHITE
BLACK
YTU94145D-40
YTU94145E-40
COVER(ADJ)
GUIDE ROLLER (TU)
GUIDE ROLLER (SUP)

(No.YF075)1-17
Jig connector diagrams
Fig.4-2-2
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".
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
EXMOD_1
SYS_TMS
SYS_TCK
SYS_TDI
SYS_TRSTL
SYS_TDO
SYS_RSTL
AL_3VSYS
IF_TX
JLIP_TX
JLIP_RX
TXD2
RXD2
NC
I_MTR
NC
NC
ENV_OUT
MAIN_VCO
ATFI
HID
DISCRI
FS_PLL
HST
MON_B
MON_R
MON_B
GND
GND
V_OUT
HRP
CVF_B
CVF_R
CVF_G
GND
NC
NC
DSC_DBG
KENTO
MVD
EXMOD_1
SYS_TCK
SYS_TRSTL
SYS_RSTL
IF_TX
JLIP_RX
RXD2
I_MTR
NC
MAIN_VCO
HID
FS_PLL
MON_B
MON_B
GND
HRP
CVF_R
GND
NC
KENTO
SYS_TMS
SYS_TDI
SYS_TDO
AL_3VSYS
JLIP_TX
TXD2
NC
NC
ENV_OUT
ATFI
DISCRI
HST
MON_R
GND
V_OUT
CVF_B
CVF_G
NC
DSC_DBG
MVD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
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
31
32
33
34
35
36
37
38
39
40
JIG CONNECTOR CABLE (YTU93106C)
MAIN CN113
JIG CONN. BOARD
(PIN NO.)
ENV_OUT
HID
Flatten the waveform.
Misalignment of guide roller
height on the take-up side
Misalignment of guide
roller height on the
supply side

1-18 (No.YF075)
SECTION 5
TROUBLE SHOOTING
5.1 SERVICE NOTE
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
[1]
FA1 FA2 FA3 FA4 FA5-2
FA5-1
12345678910111213141516 12345
17
㧖㧖 㧖㧖 㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖㧖 㧖
[2] [5] [6][3] [4]
CABINET PARTS AND ELECTRICAL PARTS(1)
12
1234567891011
3-2-3-2
VF1
3-2-3-33-2-3-1
[2]
[2]
MONITOR ASSY
[3]
[3]
VF ASSY
1234567891011
3-2-4
[7]
[7] O
P BLOCK ASSY / CCD BOARD ASSY
NOTE: 㧝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0.092N㨯m (0.94kgf㨯cm)ޓޓb㧦0.078N㨯m (0.8kgf㨯cm) ޓޓc㧦0.069N㨯m (0.7kgf㨯cm)ޓޓd㧦0.098N㨯m (1.0kgf㨯cm)ޓޓG㧦 0.118N㨯m (1.2kgf㨯cm)
aa
d
ceb
FA5-1
FA6
[9] [10] [11] [12]
21 22 23 24 25 26 28
27
㧖 㧖㧖㧖㧖㧖㧖㧖 㧖㧖㧖
㧖
㧖
[7] [8]
FA7 FA8
CABINET PARTS AND ELECTRICAL PARTS(2)
ab c a
18 19 20
- - -
- - -
- - -

(No.YF075)1-19
5.2 EMERGENCY DISPLAY
Whenever some abnormal signal is input to the syscon CPU, an
error number (E01, as an example) is displayed on the LCD
monitor or (in the electronic view finder).In every error status,
such the message as shown below alter nately appear over and
over.
• In an emergency mode, all operations except turning on/off the
POWER switch are ineffectual.
Example (in case of the error number E01):
Fig.5-2-1
E01
UNIT IN
SAFEGUARD MODE
E01
REMOVE AND
REATTACH BATTERY
LCD display Emergencymode Details Possible cause
E01 LOADING In the case the encoder position is
not shifted to the next point though
the loading motor has rotated in the
loading direction for 4 seconds or
more. This error is defined as [E01].
1. The mechanism is locked during mode shift.
2. The mechanism is locked at the mechanism loading end,
because the encoder position is skipped during
mechanism mode shift.
3. No power is supplied to the loading MDA.
E02 UNLOADING In the case the encoder position is
not shifted to the next point though
the loading motor has rotated in the
unloading direction for 4 seconds or
more. This error is defined as [E02].
1. The mechanism is locked during mode shift.
2. The mechanism is locked at the mechanism loading end,
because the encoder position is skipped during
mechanism mode shift.
E03 TU & SUP REEL FG In the case no REEL FG is
produced for seconds shown in the
table below or more in the capstan
rotation mode after loading was
complete, the mechanism mode is
shifted to STOP with the pinch roller
set off. This error is defined as
[E03].However, no REEL EMG is
detected in the SLW/STILL mode.
1. The idler gear does not engage with the reel disk well.
2. Though the idler gear and reel disk are engaged with
each other, the tape is not wound because of overload
to the mechanism.
3. No FG pulse is output from the reel sensor.
4. No power is supplied to the reel sensor.
5. Tape transport operation takes place with a cassette
having no tape inside.
6. The tape slackens and no pulse is produced until the
slack is taken up and the tape comes into the normal
status.
E04 DRUM FG In the case there is no DRUM FG
input in the drum rotation mode for
4 seconds or more. This error is
defined as [E04], and the
mechanism mode is shifted to
STOP with the pinch roller set off.
1. The drum cannot be started or drum rotation is stopped
because tape transport load is too high.
1) Tape tension is extremely high.
2) The tape is damaged or soiled with grease, etc.
2. The DRUM FG signal is not received by the syscon CPU.
1) Disconnection in the middle of the signal line.
2) Failure of the DRUM FG pulse generator (hall
element).
3. No drum control voltage is supplied to the MDA.
4. No power is supplied to the DRUM MDA.
E05 - - -
E06 CAPSTAN FG In the case no CAPSTAN FG is
produced in the capstan rotation
mode for 2 seconds or more. This
error is defined as [E06], and the
mechanism mode is shifted to
STOP with the pinch roller set
off.However, no CAPSTAN EMG is
detected in the STILL/FF/REW
mode.
1. The CAPSTAN FG signal is not received by the syscon
CPU.
1) Disconnection in the middle of the signal line.
2) Failure of the CAPSTAN FG pulse generator (MR
element).
2. No capstan control voltage is supplied to the MDA.
3. The capstan cannot be started or capstan rotation is
stopped because tape transport load is too high.
1) Tape tension is extremely high. (Mechanical locking)
2) The tape is damaged or soiled with grease, etc. (Tape
tangling occurs, etc.)
PB/REC
S-FWD
S-REW
FF
REW
3 SEC
3 SEC
0.3 SEC
3 SEC
0.1 SEC
3 SEC
0.3 SEC
3 SEC
0.1 SEC
3 SEC
REEL(SUP) REEL(TU)

(No.YF075)
AV & MULTIMEDIA COMPANY CAMCORDER CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan
Victor Company of Japan, Limited
VPT
Printed in Japan