SPECIFICATION(The specifications shown pertain specifically to the model GR-DZ7EK)
1-2 (No.YF057)
Page 3
SECTION 1
r
e
PRECAUTIONS
1.1SAFTY PRECAUTIONS
Prior to shipment from the factory, JVC products are strictly
inspected to conform with the recognized product safety and
electrical codes of the countries in which they are to be
sold.However,in order to maintain such compliance, it is equally
important to implement the following precautions when a set is
being serviced.
1.1.1 Precautions during Servicing
(1) Locations requiring special 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.
emission. Consequently, when servicing these products,
replace the cathode ray tubes and other parts with only the
specified parts. Under no circumstances attempt to modify
these circuits.Unauthorized modification can increase the
high voltage value and cause X-ray emission from the
cathode ray tube.
(12) Crimp type wire connectorIn such cases as when replacing
the power transformer in sets where the connections
between the power cord and power trans former primary
lead wires are performed using crimp type connectors, if
replacing the connectors is unavoidable, in order to prevent
safety hazards, perform carefully and precisely according
to the following steps.
• Connector part number :E03830-001
• Required tool : Connector crimping tool of the proper
type which will not damage insulated parts.
• Replacement procedure
a) Remove the old connector by cutting the wires at a
point close to the connector.Important : Do not
reuse a connector (discard it).
cut close to connector
Fig.1-1-3
b) Strip about 15 mm of the insulation from the ends
of the wires. If the wires are stranded, twist the
strands to avoid frayed conductors.
15 mm
Fig.1-1-4
c) Align the lengths of the wires to be connected.
Insert the wires fully into the connector.
Metal sleeve
Fig.1-1-1
(7) Observe that wires do not contact heat producing parts
(heatsinks, oxide metal film resistors, fusible resistors, etc.)
(8) Check that replaced wires do not contact sharp edged or
pointed parts.
(9) When a power cord has been replaced, check that 10-15
kg of force in any direction will not loosen it.
Power cord
Fig.1-1-2
(10) Also check areas surrounding repaired locations.
(11) Products using cathode ray tubes (CRTs)In regard to such
products, the cathode ray tubes themselves, the high
voltage circuits, and related circuits are specified for
compliance with recognized codes pertaining to X-ray
Connector
Fig.1-1-5
d) As 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.
1.2
5
2
.0
5.5
Crimping tool
Fig.1-1-6
e) Check the four points noted in Fig.1-1-7.
Not easily pulled free
Wire insulation recessed
more than 4 mm
Crimped at approx. cente
of metal sleev
Conductors extended
Fig.1-1-7
(No.YF057)1-3
Page 4
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.
d
Chassis
d'
Power cord
primary wire
Fig.1-1-8
(4) Leakage current test
Confirm specified or lower leakage current between earth
ground/power cord plug prongs and externally exposed
accessible parts (RF terminals, antenna terminals, video
and audio input and output terminals, microphone jacks,
earphone jacks, etc.).
Measuring Method : (Power ON)Insert load Z between
earth ground/power cord plug prongs and externally
exposed accessible parts. Use an AC voltmeter to
measure across both terminals of load Z. See Fig.1-1-9
and following Fig.1-1-12.
ab
Externally
exposed
accessible part
Z
V
c
A
Fig.1-1-9
(5) Grounding (Class 1 model only)
Confirm specified or lower grounding impedance between
earth pin in AC inlet and externally exposed accessible
parts (Video in, Video out, Audio in, Audio out or Fixing
screw etc.).Measuring Method:
Connect milli ohm meter between earth pin in AC inlet and
exposed accessible parts. See Fig.1-1-10 and grounding
specifications.
AC inlet
Earth pin
Exposed accessible part
MIlli ohm meter
Grounding Specifications
Region
USA & Canada
Europe & Australia
Grounding Impedance (Z
Z0.1 ohm
Z0.5 ohm
)
Fig.1-1-10
AC Line Voltage
100 V
100 to 240 V
110 to 130 V
110 to 130 V
200 to 240 V
Region
Japan
USA & Canada
Europe & Australia
Insulation Resistance (R
R 1 M /500 V DC
1 M R 12 M /500 V DC
R 10 M /500 V DC
)
Dielectric Strength
AC 1 kV 1 minute
AC 1.5 kV 1 minute
AC 1 kV 1 minute
AC 3 kV 1 minute
AC 1.5 kV 1 minute
(
Class
(
Class
Clearance Distance (d), (d'
d, d' 3 mm
d, d' 4 mm
d, d' 3.2 mm
d 4 m m
)
d' 8 m m (Power cord
d' 6 m m (Primary wire
)
Fig.1-1-11
AC Line Voltage
100 V
110 to 130 V
110 to 130 V
220 to 240 V
Region
Japan
USA & Canada
Europe & Australia
Load Z
1
0.15
1.5
2
50
Leakage Current (i)
i 1 mA rms
i 0.5 mA rms
i 0.7 mA peak
i 2 mA dc
i 0.7 mA peak
i 2 mA dc
a, b, c
Exposed accessible parts
Exposed accessible parts
Antenna earth terminals
Other terminals
Fig.1-1-12
NOTE :
These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
)
)
)
1-4 (No.YF057)
Page 5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.YF057)1-5
Page 6
SECTION 3
DISASSEMBLY
3.1BEFORE ASSEMBLY AND DISASSEMBLY
3.1.1 Precautions
• Be sure to disconnect the power supply unit prior to mounting
and soldering of parts.
• Prior to removing a component part that needs to disconnect
its connector(s) and its screw(s), first disconnect the wire(s)
from the connector(s), and then remove the screw(s).
• When connecting/disconnecting wires, pay enough attention
not to damage the connectors.
• When inserting the flat wire to the connector, pay attention to
the direction of the flat wire.
• Be careful in removing the parts to which some spacer or
shield is attached for reinforcement or insulation.
• When replacing chip parts (especially IC parts), first remove
the solder completely to prevent peeling of the pattern.
• Tighten screws properly during the procedures. Unless
otherwise specified, tighten screws at a torque of 0.118N
·cm). However, as this is a required value at the time of
(1.2kgf
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
Two kinds of double-arrows in connection tables respectively
show kinds of connector/wires.
: Wire: Flat wire: Board to board (B-B)
: The connector of the side to remove
CONN. No.PIN No.CONNECTOR
CN2a
CN2b
MAIN CN101
MAIN CN103
MONI BW CN761
MINI BW CN762
3.1.3 Disconnection of connectors (Wires)
Wire
· Pull both ends of the connector in the arrow
direction, remove the lock and disconnect the flat
wire.
B-B Connector
B-B Connector
· Pull the both ends of the board in the direction of the arrow, and remove the B-B Connector.
FPC Connector
· Extend the locks in the direction of the arrow for
unlocking and then pull out the wire. After
removing the wire, immediately restore the locks
to their original positions because the locks are
apt to come off the connector.
Wire
FPC Connector
Lock
B-B Connector
Fig.3-1-1
3.1.4 Tools required for disassembly and assembly
Torque driver
YTU94088
Bit
YTU94088-003
Tweezers
P-895
·m
40
10
• Torque driver
Be sure to use to fastening the mechanism and exterior parts
because those parts must strictly be controlled for tightening
torque.
• Bit
This bit is slightly longer than those set in conventional torque
drivers.
• Tweezers
To be used for removing and installing parts and wires.
• Chip IC replacement jig
To be used for replacement of IC.
• Cleaning cloth
Recommended cleaning cloth to wipe down the video heads,
mechanism (tape transport system), optical lens surface.
3.2ASSEMBLY AND DISASSEMBLY OF MAIN PARTS
3.2.1 Assembly and disassembly
When reassembling, perform the step(s) in reverse order.
Carefully remove the HEAT ASSEMBLY that is placed on the
MAIN BOARD.
When attaching the HEAT ASSEMBLY, pull it into shape and
place it back to it's original position.
NOTE12a:
Detach the ARM ASSEMBLY with the SD BOARD ASSEMBLY attached.
NOTE12b:
Detach the ARM ASSEMBLY with the FRONT BOARD ASSEMBLY attached.
NOTE16:
Be careful with the handling of the OP BLOCK ASSEMBLY.
NOTE17:
When attaching the SHIELD COVER, press the FPC with the
SHIELD COVER.
NOTE18:
When attaching the BRACKET (MECHA), make sure to
place the FPC inside the frame.
zDestination of connectors
CN.NO.
Be careful not to lose the COVER (ADJ).
NOTE2a:
Remove the COVER (MIC), and remove the screw.
NOTE2b:
Be careful not to break the hooks.
NOTE3:
Be careful not to break the hooks.
NOTE4a:
Make sure to pull out the SD card from the holder.
NOTE4b:
Remove the screw (No.9) by opening the MEMORY CARD
COVER.
NOTE5a:
Remove the FOOT, and remove the screw (No.23).
NOTE5b:
Be careful not to get an electric shock by the strobe condenser.
NOTE6:
Be careful not to get an electric shock by the strobe condenser.
NOTE7:
When attaching/detaching the REAR COVER ASSEMBLY,
leave the CASSETTE COVER open, and the VF ASSEMBLY pulled out.
CN4 SPEAKER - SD CN704 2
CN5a MAIN CN105 MONITOR
CN5b MAIN CN112 JUNCTION CN901 18
CN6a MAIN CN111 MIC - 4
CN6b MAIN CN110 STROBE UNIT - 16
CN8 MAIN CN104 REAR CN501 40
CN9 MAIN CN103 VF, ZOOM CN7001,CN1
CN10 MAIN CN108 JACK CN301 16
CN12a SD CN701 MAIN CN102 25
CN12b FRONT CN1101 MAIN CN109 6
CN15a MAIN CN101 CCD - 24
CN15b MAIN CN102 SD CN701 25
CN15c PRE/MDA CN402 MAIN CN106 40
CN15d PRE/MDA CN401 MAIN CN107 73
CN16 PRE/MDA CN4901 OP BLOCK ASSY - 33
CN17a PRE/MDA CN408 HEAD - 8
CN17b PRE/MDA CN406 SENSOR - 16
CN17c PRE/MDA CN405 CAPSTAN MOTOR - 18
CN17d PRE/MDA CN404 DRUM MOTOR - 11
CN17e PRE/MDA CN407
CN17f PRE/MDA CN403 LOADING MOTOR - 6
NOTE8:
When attaching the REAR BOARD ASSEMBLY, leave the
CASSETTE COVER closed, and be careful not to break the
switch.
CONNECTOR
ROTARY ENCODER SW
CN7601,CN7602
39/20,20
31/20,6
- 6
PIN
NO.
(No.YF057)1-7
Page 8
BOTTOM VIEW
2L3d
L3e
L3g
[1]
1
(S1)
L1a
L1c
L1b
Fig.C1
COVER(ADJ)
NOTE1b
GRIP BELT
NOTE1a
L3b
L3d
L3c
2L3f
L3b
[3]
L3c
L3f
NOTE3
L3g
L3e
Fig.FA1-2
L3a
4
(S3b)
[2]
COVER(GRIP)
5
(S3b)
NOTE2b
2
(S2)
L2b
L2a
Fig.FA1-1
[3]
COVER(MIC)
NOTE2a
3
(S3a)
[4]
8
(S4b)
9
(S4b)
NOTE4b
NOTE4a
CN4
10
(S4a)
Fig.FA2-1
6
(S4a)
7
(S4a)
11
(S4a)
1-8 (No.YF057)
Page 9
[4]
[5]
NOTE5b
CN5b
CN5a
FPC
(MONI)
18
(S5c)
17
17
(S5b)
(S5b)
16
(S5b)
Fig.FA2-2
22
(S5c)
21
(S5c)
20
(S5c)
19
(S5c)
FOOT
NOTE5a
12
(S5a)
14
(S5b)
GARD BASE
13
(S5b)
㧖
15
(S5b)
㧖0.088Nm (0.9kgfcm)
Fig.FA3-1
23
(S5d)
NOTE6
[6]
L6
Fig.FA3-2
CN6b
CN6a
24
(S6)
25
(S6)
Fig.FA4
(No.YF057)1-9
Page 10
[8]
CN8
L8
[7]
29
(S8)
NOTE7
30
(S8)
SWITCH
NOTE8
[9]
26
(S7a)
NOTE9
27
(S7a)
CN9
28
(S7b)
31
(S9a)
[9]
Fig.FA5
32
(S9b)
33
(S9b)
Fig.FA6-2
[10]
CN10
NOTE10
FPC
1-10 (No.YF057)
Fig.FA6-1
34
(S10)
Fig.FA7
Page 11
[11]
NOTE12a
38
(S12a)
36
(S11)
37
(S11)
[12]
39
(S12a)
CN12a
Fig.FA8-1
35
(S11)
HEAT ASSY
NOTE11
[13]
44
(S13)
45
(S13)
46
(S13)
L13
[12]
[14]
L14a
47
(S14)
L14b
Fig.FA9
40
(S12b)
41
(S12b)
NOTE12b
42
(S12b)
L12
[12]
CN12b
Fig.FA8-2
43
(S12b)
L15a
[15]
CN15d
CN15c
(S15)
Fig.FA10
L15b
CN15a
CN15b
48
49
(S15)
(No.YF057)1-11
Page 12
[16]
L16b
L16a
50
(S16)
NOTE18
[18]
BKT(MECHA)
56
(S18)
57
(S18)
58
(S18)
CN17c
(CN405)
CN17b
(CN406)
CN16
Fig.FA11
[17]
CN17d
(CN404)
L17b
51
(S16)
Fig.FA13
SHIELD COVER
(PRE)
NOTE17
52
(S17a)
53
(S17a)
L17a
54
(S17b)
55
(S17b)
CN17a
(CN408)
CN17e
(CN403)
CN17f
(CN407)
1-12 (No.YF057)
L17b
㧖0.088Nm (0.9kgfcm)
Fig.FA12
Page 13
3.2.3 DISASSEMBLY of [19] 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 disassembly 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 (SD19), they should be removed together except for the replacement.
zRemoving MONITOR ASSEMBLY
(1) Pull out the FPC from the three connectors (CN5a, b and c).
(2) Remove the six screws (1-6), and remove the COVER
(UP) ASSEMBLY.
(3) Remove the two screws (7and 8), and free the FPC AS-
SEMBLY.
(4) Remove the two screws (9 and 10), and remove the
MONITOR ASSEMBLY.
NOTE5a:
When removing the MONITOR ASSEMBLY, be careful not to damage the FPC ASSEMBLY.
NOTE5b:
During the procedure, be careful not to break the
MONI SWITCH.
zDisassembly of MONITOR ASSEMBLY
(1) Remove the four screws (11-14), and remove the MON-
ITOR COVER ASSEMBLY by disengaging the three
hooks (L19a, b and c).
(2) Pull out the U/D SWITCH BOARD from the MONITOR
CASE ASSEMBLY.
(3) Release the locks of the two connectors (CN19a and b)
in order, and remove the HINGE UNIT by lifting it up.
NOTE19a:
During the procedure, be careful in handling the FPC
ASSEMBLY.
(4) Release the connector (CN19c), and pull out the FPC.
(5) Remove the MONITOR BOARD ASSEMBLY and the
BACK LIGHT together.
NOTE19b:
Since the BACKLIGHT is soldered to the BOARD AS-
SEMBLY (SD19), they should be removed together
except for the replacement.
(6) Remove the LCD BRACKET.
(7) Remove the LCD MODULE (liquid crystal).
zDisassembly of HINGE ASSEMBLY
(1) Remove the two screws (15 and 16), and remove the
HINGE COVER (U) paying attention not to break the FPC.
NOTE19c:
There is a magnet attached to the HINGE COVER (U).
During the procedure, be careful not to lose the mag-
net.
When the magnet comes off, make sure to attach the
magnet in the right direction. (The marked side should
be inside.)
(2) Pull out the FPC while removing the HINGE COVER (L).
(3) Remove the FPC from the HINGE ASSEMBLY.
NOTE19d:
Be careful in handling the FPC.
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 ASSEMBLY is placed inside.
1
(S5a)
2
(S5a)
CN5b
CN5a
CN5c
L5a
COVER(UP) ASSY
NOTE5b
MONI SWITCH
FPC ASSY
9
(S5d)
10
(S5d)
(S5b)
7
(S5c)
(S5b)
Fig.3-2-3-1
(S5b)
4
8
(S5c)
5
(S5b)
6
NOTE5a
3
[19]
㧖0.098Nm (1.0kgfcm)
㧖㧖0.068Nm (0.7kgfcm)
㧖㧖㧖0.176Nm (1.8kgfcm)
(No.YF057)1-13
Page 14
11
(S19a)
12
(S19a)
13
(S19b)
L19a
L19b
14
(S19b)
L19c
MONITOR
COVER
ASSY
U/D SWITCH ASSY
NOTE19b
CN19b
CN19a
CN19c
MONITOR BOARD ASSY
SD19
BACK LIGHT
15
(S19c)
㧖0.245Nm (2.5kgfcm)
㧖㧖0.049Nm (0.5kgfcm)
NOTE19d
NOTE19c
L19c
L19e
MAGNET
MARK
LCD BRACKET
LCD MODULE
NOTE19a
HINGE ASSY
MONTOR CASE ASSY
1-14 (No.YF057)
16
(S19c)
Fig.3-2-3-2
Page 15
3.2.4 DISASSEMBLY of [16] OP BLOCK ASSMBLY/CCD BOARD ASSEMBLY
zCAUTIONS
(1) Since the OP BLOCK on this model is more complicated
in structure than previous OP BLOCKS, pay extra
attention to external shocks and vibrations.
(2) During the procedure, be careful in handling the CCD
IMAGE SENSOR, OP LPF and the LENS etc. Pay extra
attention to the soil, dust and scratch on the surface.
If fingerprints are left on the screen, wipe them with clean
chamois leather or a cleaning cloth.
(3) CCD IMAGE SENSORS may sometimes be shipped
from the factory with the protection seal applied on the
transparent glass. After the replacement, do not remove
the protection seal until right before assembling the CCD
IMAGE SENSOR to the OP BLOCK ASSEMBLY.
zDisassembly procedure of OP BLOCK ASSEMBLY/CCD
BOARD ASSEMBLY
(1) Remove the HOOD and the BRACKET (OP)
ASSEMBLY first, before disassembling the OP BLOCK
ASSEMBLY.
(2) Remove the two screws (1 and 2), HOOD, and the two
screws (3 and 4), and then remove the BRACKET (OP)
ASSEMBLY.
NOTE16a:
When assembling, check that the OP BLOCK
ASSEMBLY is firmly placed on the right position.
(3) Remove the two screws (5 and 6), and remove both the
CCD BOARD ASSEMBLY and the CCD BASE ASSEM-
BLY together.
(4) Remove the SPACER RUBBER.
(5) Take out the OP LPF.
NOTE16b:
When replacing the CCD IMAGE SENSOR, unsolder
the sixteen soldered parts (SD16a), and remove the
CCD BASE ASSEMBLY from the CCD BOARD
ASSEMBLY.
Replace the CCD IMAGE SENSOR as a CCD BASE
ASSEMBLY, not as a single part replacement.
NOTE16c:
When attaching the OP LOPF, be careful to attach in
the correct direction.
NOTE16g:
IRIS MOTOR UNIT includes the FPC ASSEMBLY and
the SESOR x 2.
HOOD
1
(S16a)
2
(S16a)
(S16b)
Fig.3-2-4-1
OP BLOCK
NOTE16a
BKT(OP)
ASSEMBLY
㧖㧖
4
3
(S16b)
㧖0.098Nm (1.0kgfcm)
zReplacing service repair parts
The service repair parts of the OP BLOCK ASSEMBLY are as
follows.
When replacing the parts, pay special attention not to break
the FPC, or not to damage the parts by soldering (overheat).
(1) FOCUS MOTOR
(2) ZOOM MOTOR
(3) IRIS MOTOR UNIT
NOTE16d:
When replacing the FOCUS MOTOR or the ZOOM
MOTOR, space the FPC approximately 1 mm above
from the jack and then solder it (SD16b).
NOTE16e:
When assembling, make sure to interlock the slide
part of the OP BLOCK properly to the axis of the
ZOOM MOTOR.
NOTE16f:
When removing the IRIS MOTOR UNIT, fully pull the
slide part which is interlocked to the axis of the
FOCUS MOTOR to the CCD side.
(No.YF057)1-15
Page 16
10
(S16d)
9
(S16d)
ZOOM MOTOR
SENSOR
NOTE16d, e
OP BLOCK ASSEMBLY
11
(S16e)
13
(S16f)
12
(S16e)
IRIS MOTOR UNIT
NOTE16f, g
NOTE16c
SD16b
OP
side
OP LPF
Fig.3-2-4-2
OP LPF
Blue
CCD
side
SPACER RUBBER
FOCUS MOTOR
NOTE16d, e
8
(S16d)
7
(S16d)
CCD BOARD
ASSEMBLY
5
(S16c)
6
(S16c)
SD16a
SHIELD(CCD)
CCD BASE ASSEMBLY
NOTE16b
0.078N.m (0.8kgf.cm)
0.088N.m (0.9kgf.cm)
1-16 (No.YF057)
Page 17
3.2.5 DISASSMBLY of [9] VF ASSEMBLY
zBefore disassembly
(1) EYE CUPS cannot be replaced as single parts because
of the structure.
Make sure to remove the CABINET PARTS before re-
placing the EYE CUP.
(2) Disassemble the VF ASSEMBLY if necessary. When as-
sembling 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 three screws (1-3), and remove the ZOOM
COVER ASSEMBLY by spreading each side out. (See
Fig. 3-2-5-1)
(2) Pull out the FPC from the connector (CN9a), and release
it by peeling the two-sided tape off. Remove the screw
(4), and remove the GUIDE (FPC). (See Fig. 3-2-5-2)
(3) Remove the three screws (5-7), and remove the
BRACKET (ZOOM) by spreading each side out. (See
Figs.3-2-5-2 and 3-2-5-3)
(4) Remove the screw (8), and remove the PLATE
(EARTH).
NOTE9a
During the procedure, be careful in handling the parts.
(5) Remove the three screws (9-11). (See Fig.3-2-5-4)
(6) Remove the screw (12), and remove the LEVER (VF).
(7) Remove the three screws (13-15), and remove only the
UPPER CASE (VF) by grabbing the HOLDER (VF) ASSEMBLY and the EYE CUP together.
NOTE9b
Be careful as the VF BODY (MIDDLE) and the BOT-
TOM CASE (VF) are detached as a whole.
NOTE9c
When attaching the LEVER (VF), check whether the
HOLDER (LENS) ASSEMBLY located inside operates
steadily in sliding movement. (See Fig.3-2-5-5)
(8) Pull out and remove the FPC from the connector (CN9b)
by taking the VF BODY (MIDDLE) out. (See Fig.3-2-5-6)
(9) Remove the BOTTOM CASE (VF).
NOTE9d
During the procedure, be careful not to break the FPC.
(10) Remove the screw (16), and remove the FPC ASSEM-
BLY. (See Fig.3-2-5-7)
zDisassembly of the VF BODY (MIDDLE) (See Fig.3-2-5-8)
<GUIDE (LENS)>
(1) Remove the EYE CUP.
NOTE9e
Be careful the SHEET (LENS) will be detached
when the EYE CUP is removed.
(2) Remove the HOLDER (LENS) ASSEMBLY.
NOTE9f
Be careful in handling the SPRING (LENS) which is
attached to the HOLDER (LENS) ASSEMBLY.
<HOLDER (LCD)>
(1) Remove the SPACER (A).
(2) Pull out the FPC from the connector (CN9c), and re-
move the VF BOARD ASSEMBLY by spreading the
hooks on the both sides out (CN9c).
(3) Remove the CASE (CN9c) by spreading the hooks on
the each side.
(4) Remove the SPRING (LCD) and the LCD UNIT.
1
(S9a)
ZOOM COVER
ASSEMBLY
3
(S9b)
2
(S9a)
L9b
L9c
L9a
㧖0.098Nm (1.0kgfcm)
Fig.3-2-5-1
(No.YF057)1-17
Page 18
CN9a
L9e
L9d
GUIDE(FPC)
9
(S9c)
10
(S9f)
11
(S9f)
FPC
BKT
(ZOOM)
Fig.3-2-5-2
5
(S9d)
4
(S9a)
CN9a
GUIDE(FPC)
L9g
NOTE9a
PLATE
(EARTH)
8
(S9d)
㧖0.098Nm (1.0kgfcm)
Fig.3-2-5-4
NOTE9b
UPPER CASE(VF)
VF BODY
6
(S9d)
1-18 (No.YF057)
7
(S9d)
L9f
Fig.3-2-5-3
12
(S9g)
13
(S9e)
BUTTOM CASE
LEVER(VF)
NOTE9c
(VF)
㧖0.098Nm (1.0kgfcm)
㧖㧖0.078Nm (0.8kgfcm)
Fig.3-2-5-5
HOLDER(VF)
ASSEMBLY
14
(S9a)
15
(S9a)
Page 19
VF BODY
CN9b
FPC
-MAGNIFICATION-
NOTE9d
BOTTOM CASE(VF)
HOLDER(VF)
ASSEMBLY
L9p
FPC
FPC ASSEMBLY
VF SWITCH
16
(S9a)
Fig.3-2-5-6Fig.3-2-5-7
SPACER(A)
CN9c
VF BOARD
ASSEMBLY
CASE(BL)
SPRING(LCD)
L9m
L9k
HOLDER(LENS)
ASSEMBLY
SHEET(LENS)
GUIDE(LENS)
L9n
NOTE9e
LCD UNIT
HOLDER(LCD)
EYE CUP
FPC
SPRING(LENS)
NOTE9f
L9g
HOLDER(LCD)
L9j
GUIDE(LENS)
L9h
Fig.3-2-5-8
(No.YF057)1-19
Page 20
SECTION 4
ADJUSTMENT
4.1PREPARATION
4.1.1 Precaution
Camera system and deck system of this model are specially
adjusted by using PC.
However, if parts such as the following are replaced, an
adjustment is required. The adjustment must be performed in a
Service Center equipped with the concerned facilities.
• OP BLOCK ASSEMBLY
• EEP ROM (IC1005 of MAIN board)
In the event of malfunction with electrical circuits, first find a
defective portion with the aid of proper test instruments as shown
in the following electrical adjustment procedure, and then
commence necessary repair/ replacement/adjustment.
• In observing chip TP, use IC clips, etc. to avoid any stress.
Prior to replacement of chip parts (especially IC), remove the
solder completely to prevent peeling of the pattern.
• Use a patch cord if necessary. As for a patch cord, see the
BOARD INTERCONNECTIONS.
• Since connectors are fragile, carefully handle them in
disconnecting and connecting the FPC.
4.1.2 REQUIRED TEST EQUIPMENT
• Personal computer (for Windows)
• Color TV monitor
• Oscilloscope (dual-trace type, observable 100MHz or higher
frequency). The one observable 300 MHz or higher frequency
is recommended.
• Digital voltmeter
• DC power supply or AC adapter
• Frequency counter (with threshold level adjuster)
4.1.3 TOOLS REQUIRED FOR ADJUSTMENT
Torque Driver
YTU94088
Chip IC Replacement Jig
PTS40844-2
INF Adjustment Lens
YTU92001B
Light box Assembly
YTU93096A
Alignment Tape
MC-2
INF Adjustment Lens Holder
Bit
YTU94088-003
Cleaning Cloth
KSMM-01
YTU94087
Gray Scale Chart
YTU94133A
PC Cable
QAM0099-005
Guide Driver (Hexagonal)
Camera Stand
YTU93079
Color Bar Chart
YTU94133C
Communication Cable
YTU93107A
Tweezers
P-895
D-770-1.27
1-20 (No.YF057)
Service Support System
YTU94057-82
Jig Connector Cable
YTU93106C
Extension Connector
YTU94145D-40
• Torque driver
Be sure to use to fastening the mechanism and exterior parts
because those parts must strictly be controlled for tightening
torque.
• Bit
This bit is slightly longer than those set in conventional torque
drivers.
• Tweezers
To be used for removing and installing parts and wires.
• Chip IC replacement jig
To be used for adjustment of the camera system.
• Cleaning cloth
Recommended the Cleaning cloth to wipe down the video
heads, mechanism (tape transport system), optical lens surface.
Page 21
• Guide driver (Hexagonal)
To be used to turn the guide roller to adjustment of the linarity
of playback envelope.
• INF adjustment lens
To be used for adjustment of the camera system. For the
usage of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
• INF lens holder
To be used together with the Camera stand for operating the
Videocamera in the stripped-down condition such as the status without the exterior parts or for using commodities that are
not yet conformable to the interchangeable ring. For the usage
of the INF lens holder, refer to the Service Bulletin No. YA-SB-
10035.
• Camera stand
To be used together with the INF adjustment lens holder. For
the usage of the Camera stand, refer to the Service Bulletin
No. YA-SB-10035.
• Light box assembly
To be used for adjustment of the camera system. For the
usage of the Light box assembly, refer to the Service Bulletin
No. YA-SB-10035.
• Gray scale chart
To be used for adjustment of the camera system. For the
usage of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
• Color bar chart
To be used for adjustment of the camera system. For the
usage of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
• Alignment tape
To be used for check and adjustment of interchangeability of
the mechanism.
• PC cable
To be used to connect the Videocamera and a personal computer
with each other when a personal computer issued for adjustment.
• Communication cable
Connect the Communication cable between the PC cable and
Jig connector cable when performing a PC adjustment.
• Service support system
To be used for adjustment with a personal computer. Software
can be downloaded also from JS-net.
• Jig connector cable
Connected to JIG CONNECTOR of the main board and used
for electrical adjustment, etc.
• Extension connector
Connect this extension connector to the connector of the Jig
connector cable for extending the cable connector.
4.2JIG CONNECTOR CABLE CONNECTION
4.2.1 CAUTIONS
(1) Only 30 of 40 pins of JIG CONNECTOR CABLE
(PN:YTU93106C) are extended with wires. Additional 5
pins (3 to 5, 23 and 24) need to be soldered and extended
with the wires for adjustment and checking.
See Fig. 4-2-1 for details.
(2) One EXTENSION CONNECTOR (PN:YTU94145D-40) is
required.
<COMPONENT SIDE>
345
ψVCOM_E
ψCVF_G
ψCVF_B
<FOIL SIDE>
24
23
HD_M φ
CVF_R φ
: ADDITIONAL WIRE
Fig.4-2-1
(No.YF057)1-21
Page 22
Connection procedure
Jig connector diagrams
JIG CONNECTOR CABLE (YTU93106C)
COVER(JIG CON)
JIG CONNECTOR
CABLE
COMMUNICATION CABLE
COVER(ADJ)
1
SCREW
FOOT
EXTENSION
CONNECTOR
GUIDE ROLLER (SUP)
JIG CONNECTOR
RS232C
COM PORT
PC CABLE
FOR
COMMUNICATION CABLE
GUIDE ROLLER (TU)
SERVICE SUPPORT SYSTEM
MENU
PERSONAL COMPUTER
MAIN CN113JIG CONN. BOARD
FLSH_WRT
REG_3.1V
ARMTDO
ARMTCK
ARMTMS
FL_MDO
RESET
AL_3VSYS
IF_TX
JLIP_TX
JLIP_RX
TMS_DSC
TCK_DSC
TDI_DSC
TRST_DSC
TDO_DSC
PB_CLK
ENV_OUT
MAIN_VCO
ATFI
HID1
DSCTEST0
FS_PLL
DSC_TX
NU_TX
NU_RX
DSC_RX
GND
GND
V_OUT
VCOM_M
CVF_B
CVF_R
CVF_G
HD_M
VCOM_E
ARMTDI
nARMTRST
nJRESET
MOD0
10
11
12
13
14
15
16
17
18
19
20
1
21
2
22
3
23
4
24
5
25
6
26
7
27
8
28
9
29
30
31
32
33
34
35
36
ADDITIONAL WIRE
37
38
39
40
(PIN NO.)
6
7
8
9
DSCTEST0
10
11
12
13
14
15
16
AL_3VSYS
17
18
19
20
25
26
27
28
29
30
MAIN_VCO
31
32
TRST_DSC
33
35
36
37
38
39
FLSH_WRT
40
3.VCOM_E
4.CVF_G
5.CVF_B
23.HD_M
24.CVF_R
V_OUT
GND
NU_RX
DSC_TX
ATFI
ENV_OUT
TDO_DSC
TDI_DSC
TMS_DSC
JLIP_TX
FL_MDO
ARMTCK
REG_3.1V
VCOM_M
GND
DSC_RX
NU_TX
FS_PLL
HID1
PB_CLK
JLIP_RX
IF_TX
RESET
ARMTMS
ARMTDO
Fig.4-2-3
TO GND
RED
WHITE
BLACK
TO JLIP_RX
TO JLIP_TX
1-22 (No.YF057)
COMMUNICATION CABLEJIG CONNECTOROSCILLOSCOPEJIG CONNECTOR
TO ENV_OUT
TO HID1
Fig.4-2-2
Page 23
4.3MECHANISM 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 HID1, observe the waveform of
ENV_OUT.
(3) Set the manual tracking mode (ATF OFF).
(4) Confirm that the waveform is entirely parallel and straight,
and free from remarkable level-down, through the tracking
operation.
Make the confirmation as follows if necessary.
(5) If level-down is observed on the left hand side of the
waveform, straighten the level by turning the GUIDE
ROLLER (SUP).
If level-down is observed on the right hand side of the
waveform, straighten the
level by turning the GUIDE ROLLER (TU).
(6) After the adjustment, try the unloading motion once, and
confirm that the waveform is flat when the tape has been
played back again.
(7) Play back the self-recording.
(8) Confirm that the waveform is flat.
4.4ELECTRICAL ADJUSTMENT
Electrical adjustment is performed by using a personal computer
and software for SERVICE SUPPORT SYSTEM. Read
README.TXT file to use the software properly.
As for the connection of cables, see "4.2 JIG CONNECTOR
CABLE CONNECTION".
ENV_OUT
HID1
Misalignment of guide
roller height on the
supply side
Fig.4-3-1
Flatten the waveform.
Misalignment of guide roller
height on the take-up side
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.
The following procedure is a method for taking out the cassette
tape in case the cassette tape cannot be ejected due to an electrical failure. The following procedure is a simplified method;
therefore, for more reliable operation, it is recommended that you
should remove exterior parts so that you can take out the tape
without excessive force.
(1) Remove the Power Unit (battery or DC cord) from the set.
(2) Open the CASSETTE COVER till it is completely opened
and fixed.
(3) Attach a PVC tape as shown in the figure.
NOTE:
Be careful of cassette tape damage caused because the
Cassette Housing Assembly is moved upward at the unloading end (Eject mode).
(4) To set the Slide Deck Assembly to the unloading end, ap-
ply DC 3V to the electrode (terminal) on the top surface of
the LOADING MOTOR that is seen through a space of VF
side.
NOTE:
Be careful not to attach grease or a similar substance to
the surface of the cassette tape on the tape transport
system.
(5) Wind the cassette tape by directly turning the Reel Disk As-
sembly (SUP) from the backside of the SLIDE DECK AS-
SEMBLY by using a sharp tool (Chip IC replacement tool).
(6) Confirm that the cassette tape is completely wound, and
then peel off the PVC tape from the CASSETTE HOUSING
ASSEMBLY and take out the cassette tape.
NOTE:
To confirm that the cassette tape is completely wound,
confirm that one REEL DISK ASSEMBLY (TU) rotates
as you rotate the other REEL DISK ASSEMBLY (SUP).
(7) Make sure that grease or a similar substance is not at-
tached to the surface of the tape taken out in the procedure
(6). Similarly, also make sure that grease or a similar sub-
stance is not attached on the MECHANISM ASSEMBLY,
especially the tape transport system.
(DC3V)
PVC TAPE
LOADING MOTOR
ASSEMBLY
ASSEMBLY (SUP)
SLIDE DECK
ASSEMBLY
CASSETTE COVER
CASSETTE HOUSING
ASSEMBLY
REEL DISK
Fig.5-2-1
(No.YF057)1-25
Page 26
5.3EMERGENCY DISPLAY
Example (in case of the error number E01):
Whenever some abnormal signal is input to the syscon CPU, an
error number (E01, as an example) is displayed on the LCD
monitor or (in the electronic view finder).In every error status,
such the message as shown below alter nately appear over and
E01
UNIT IN
SAFEGUARD MODE
E01
REMOVE AND
REATTACH BATTERY
over.
• In an emergency mode, all operations except turning on/off the
POWER switch are ineffectual.
LCD displayEmergencymodeDetailsPossible cause
E01LOADINGIn the case the encoder position is
not shifted to the next point though
the loading motor has rotated in the
loading direction for 4 seconds or
more. This error is defined as [E01].
E02UNLOADINGIn the case the encoder position is
not shifted to the next point though
the loading motor has rotated in the
unloading direction for 4 seconds or
1. The mechanism is locked during mode shift.
2. The mechanism is locked at the mechanism loading end,
because the encoder position is skipped during
mechanism mode shift.
3. No power is supplied to the loading MDA.
1. The mechanism is locked during mode shift.
2. The mechanism is locked at the mechanism loading end,
because the encoder position is skipped during
mechanism mode shift.
more. This error is defined as [E02].
E03TU & SUP REEL FG In the case no REEL FG is
produced for seconds shown in the
table below or more in the capstan
rotation mode after loading was
complete, the mechanism mode is
shifted to STOP with the pinch roller
set off. This error is defined as
[E03].However, no REEL EMG is
detected in the SLW/STILL mode.
REEL(SUP) REEL(TU)
PB/REC
S-FWD
S-REW
FF
REW
3 SEC
3 SEC
0.3 SEC
3 SEC
0.1 SEC
3 SEC
0.3 SEC
3 SEC
0.1 SEC
3 SEC
E04DRUM FGIn the case there is no DRUM FG
input in the drum rotation mode for
4 seconds or more. This error is
defined as [E04], and the
mechanism mode is shifted to
STOP with the pinch roller set off.
1. The idler gear does not engage with the reel disk well.
2. Though the idler gear and reel disk are engaged with
each other, the tape is not wound because of overload
to the mechanism.
3. No FG pulse is output from the reel sensor.
4. No power is supplied to the reel sensor.
5. Tape transport operation takes place with a cassette
having no tape inside.
6. The tape slackens and no pulse is produced until the
slack is taken up and the tape comes into the normal
status.
1. The drum cannot be started or drum rotation is stopped
because tape transport load is too high.
1) Tape tension is extremely high.
2) The tape is damaged or soiled with grease, etc.
2. The DRUM FG signal is not received by the syscon CPU.
1) Disconnection in the middle of the signal line.
2) Failure of the DRUM FG pulse generator (hall
element).
3. No drum control voltage is supplied to the MDA.
4. No power is supplied to the DRUM MDA.
E05---
E06CAPSTAN FGIn the case no CAPSTAN FG is
produced in the capstan rotation
mode for 2 seconds or more. This
error is defined as [E06], and the
mechanism mode is shifted to
STOP with the pinch roller set
off.However, no CAPSTAN EMG is
detected in the STILL/FF/REW
mode.
1. The CAPSTAN FG signal is not received by the syscon
CPU.
1) Disconnection in the middle of the signal line.
2) Failure of the CAPSTAN FG pulse generator (MR
element).
2. No capstan control voltage is supplied to the MDA.
3. The capstan cannot be started or capstan rotation is
stopped because tape transport load is too high.
1) Tape tension is extremely high. (Mechanical locking)
2) The tape is damaged or soiled with grease, etc. (Tape
tangling occurs, etc.)
1-26 (No.YF057)
Fig.5-3-1
Page 27
Victor Company of Japan, Limited
AV & MULTIMEDIA COMPANY CAMCORDER CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan
(No.YF057)
Printed in Japan
WPC
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