JVC GR-SXM250US User manual

SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD. No.86721
2003/02
COMPACT VHS CAMCORDER
86721200302
GR-SXM250U S ,GR-SXM750U C
GR-SXM750U S ,GR-SXM755U C ,GR-SXM755U S
SPECIFICATION (The specifications shown pertain specifically to the model GR-SXM755)
Camcorder
General Connectors
AC Adapter
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM ASSEMBLY).
Format : S-VHS/VHS NTSC standard
Power source : DC 11 V (Using AC Adapter)
DC 6 V (Using battery pack)
Power consumption
Viewfinder on :4.5W
LCD monitor on :5.0W
Video light :3.0W
Signal system :NTSC-type
Video recording system
Luminance : FM recording
Colour : Converted sub-carrier direct recording
Conforms to VHS standard
Cassette : / cassette
Tape speed
SP : 33.35 mm/sec. (1-5/16 ips)
LP : 11.12 mm/sec. (7/16 ips)
Recording time (max.)
SP : 40 minutes
LP : 120 minutes (with TC-40 cassette)
Operating
temperature : 0ºC to 40ºC (32ºF to 140ºF)
Operating humidity : 35% to 80%
Storage temperature : -20ºC to 50ºC (-4ºF to 122ºF)
Weight : Approx. 870 g
Dimensions (W x H x D) : 113 mm x 117 mm x 199 mm
(4-1/2" x 4-5/8" x 7-7/8")
Pickup : 1/6" format CCD
Lens : F1.6, f = 2.7 mm to 43.2 mm,
16:1 power zoom lens with auto iris and
macro control, filter diameter 40.5 mm
Viewfinder : Electronic viewfinder with 0.5" black/white CRT
White balance
adjustment : Auto/Manual adjustment
LCD monitor : 3.5" diagonally measured, LCD
Speaker : Monaural
Video :1 V (p-p), 75 unbalanced, analog output
(via Video output connector)
Audio :300 mV (rms), 1 k , analog output
(via Audio output connector)
S-Video :Y: 1 V (p-p), 75 , analog output
C: 0.29 V (p-p), 75 , analog output
Power requirement
U.S.A and Canada :AC 120 V ~, 60 Hz
Other countries :AC 110 V to 240 V ~, 50 Hz/60 Hz
Output :DC 11 V , 1 A
Some accessories are not available in some areas.
Please consult your nearest JVC dealer for details on accessories and
their availability.
Optional Accessories
•Battery Packs BN-V12U, BN-V20U, BN-V400U
•Compact S-VHS ( ) Cassettes ST-C-40/30/20
•Compact VHS ( ) Cassettes TC-40/30/20
•Active Carrying Bag CB-V7U
•Cassette Adapter C-P7U
•A/V (Audio/Video) Cable
•S-Video cable
GR-SXM250US,GR-SXM750UC,GR-SXM750US,GR-SXM755UC,GR-SXM755US M3C623,M3C643

TABLE OF CONTENTS
1 PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
1.1 SAFTY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
2.1 BEFORE ASSEMBLY AND DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5
2.2 ASSEMBLY AND DISASSEMBLY OF CABINET PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
2.3 ASSEMBLY AND DISASSEMBLY OF CAMERA SECTION AND BOARD ASSEMBLY . . . . . . . . . . . . . . . . . . . .1-10
2.4 ASSEMBLY AND DISASSEMBLY OF [7]MONITOR ASSEMBLY (CABINET PARTS) . . . . . . . . . . . . . . . . . . . . .1-12
2.5 ASSEMBLY AND DISASSEMBLY OF [2]OP BLOCK ASSEMBLYCCD BOARD ASSEMBLY
(CAMERA SECTION AND BOARD ASSEMBLY). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-14
2.6 EMERGENCY DISPLAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
2.7 AUTOMATIC DEMONSTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15
2.8 TAKE OUT CASSETTE TAPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-17
2.9 SERVICE NOTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18
3 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
3.1 PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
3.2 TOOLS REQUIRED FOR ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19
3.3 MECHANISM ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21
3.4 ELECTRICAL ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-24
GR-SXM250US GR-SXM750UC/GR-SXM750US GR-SXM755UC/GR-SXM755US
LCD MONITOR 2.5 INCH 3.5 INCH
BODY COLOR SILVER METALLIC BLUE
CHARTS AND DIAGRAMS
BOARD INTERCONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
CPU SCHEMATIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
M.MDA SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
ASP SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
DSP SCHEMATIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
F/Z/I/MDA SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
V OUT SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
TG/CDS SCHEMATIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
REG SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19
LCD SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
BW/VF SCHEMATIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
JACK SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25
SPEAKER SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27
MONITOR SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
E. VF CHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
TOP OPE UNIT, ZOOM UNIT, REAR UNIT AND SENSOR SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . 2-33
MAIN CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
COMPONENT PARTS LOCATION GUIDE <MAIN> YB10400-01-02. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
MAIN CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
MONITOR CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41
CCD CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
E.VF CIRCUIT BOARD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
WAVEFORMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46
VOLTAGE CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
POWER SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
CPU/MDA SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51
CAMERA AND Y/C SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53
MONITOR SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57
PARTS LIST
1. EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.1 PACKING AND ACCESSORY ASSEMBLY <M1> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
1.2 FINAL ASSEMBLY <M2> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
1.3 MECHANISM ASSEMBLY <M3> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
1.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
1.5 MONITOR ASSEMBLY (2.5 INCH) <M5> [A] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
1.6 MONITOR ASSEMBLY (3.5 INCH) <M5> [B,C,D,E]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
2. PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
PACKING AND ACCESSORY ASSEMBLY <M1> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
FINAL ASSEMBLY <M2> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
MECHANISM ASSEMBLY <M4> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
ELECTRONIC VIEWFINDER ASSEMBLY <M4>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
MONITOR ASSEMBLY (2.5 INCH) <M5> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
MONITOR ASSEMBLY (3.5 INCH) <M5> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
MAIN BOARD ASSEMBLY <01> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
CCD BOARD ASSEMBLY <02> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
MONITOR BOARD ASSEMBLY <07> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
E.VF BOARD ASSEMBLY <60>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

(No.86721)1-3
SECTION 1
PRECAUTIONS
1.1 SAFTY PRECAUTIONS
Prior to shipment from the factory, JVC products are strictly in-
spected to conform with the recognized product safety and elec-
trical 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 com-
pliance 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
(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.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 volt-
age circuits, and related circuits are specified for compliance
with recognized codes pertaining to X-ray emission. Conse-
quently, 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.Unautho-
rized modification can increase the high voltage value and
cause X-ray emission from the cathode ray tube.
(12) Crimp type wire connector
In 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 un-
avoidable, in order to prevent safety hazards, perform care-
fully 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.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.4
c) Align the lengths of the wires to be connected. Insert
the wires fully into the connector.
Fig.5
d) As shown in Fig.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.6
e) Check the four points noted in Fig.7.
Fig.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.86721)
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 compli-
ance with safety standards.
(1) Insulation resistance test
Confirm the specified insulation resistance or greater be-
tween power cord plug prongs and externally exposed
parts of the set (RF terminals, antenna terminals, video and
audio input and output terminals, microphone jacks, ear-
phone 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.11 below.
(3) Clearance distance
When replacing primary circuit components, confirm spec-
ified clearance distance (d), (d') between soldered termi-
nals, and between terminals and surrounding metallic
parts. See Fig.11 below.
Fig.8
(4) Leakage current test
Confirm specified or lower leakage current between earth
ground/power cord plug prongs and externally exposed ac-
cessible parts (RF terminals, antenna terminals, video and
audio input and output terminals, microphone jacks, ear-
phone 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.9 and following Fig12.
Fig.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.10 and grounding spec-
ifications.
Fig.10
Fig.11
Fig.12
NOTE :
These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
ab
c
V
A
Externally
exposed
accessible part
Z

(No.86721)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 BEFORE ASSEMBLY AND DISASSEMBLY
2.1.1 Precautions
1. Be sure to disconnect the power supply unit prior to mount-
ing and soldering of parts.
2. 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).
3. When connecting/disconnecting wires, pay enough atten-
tion not to damage the connectors.
4. Be careful in removing or handling the part to which some
spacer or shield is attached for reinforcement or insulation.
5. When replacing chip parts (especially IC parts), first remove
the solder completely to prevent peeling of the pattern.
6. Tighten screws properly during the procedures. Unless
specified otherwise, tighten screws at a torque of
0.196N•m (2.0kgf•cm).
2.1.2 Assembly and disassembly
(1) Order of steps in Procedure
When reassembling, preform the step(s) in the reverse
order. 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.
(5) Adjustment information for installation.
2.1.3 Destination of connectors
2.1.4 Disconnection of connectors (Wires)
Pull both ends of the connector in the arrow direction, remove the
lock and disconnect the flat wire.
Fig.2-1-1
Extend the locks in the direction of the arrow for unlocking and
then pull out the wire. After removing the wire, immediately re-
store the locks to their original positions because the locks are
apt to come off the connector.
Fig.2-1-2
2.1.5 Tools required for disassembly and assembly
Fig.2-1-3
1.Torque driver
Be sure to use to fastening the mechanism and exterior parts
because those parts must strictly be controlled for tightening
torque.
2.Bit
This bit is slightly longer than those set in conventional torque
drivers.
3.Cleaning cloth
Recommended cleaning cloth to wipe down the video heads,
mechanism (tape transport system), optical lens surface.
C = CABINET
D = CAMERA AND BOARD ASSEMBLY
P=Spring
W=Washer
S=Screw
* = Unhook, unlock, release, unplug or unsolder.
2(S3) = 2 Screws (S3)
CN = Connector
LOWER CASE ASSEMBLY
B/W VF ASSEMBLY
TOP OPE UNIT
CASE COVER(S) ASSEMBLY
CASE COVER(M) ASSEMBLY
Fig.C1
Fig.C2
8(S1),CN1a,b,c
3(S2)
CN3,L3a,2(L3b)
(S4),2(L4)
-
-
-
-
[1]
[2]
[3]
[4]
STEP
No. PART NOTE
Fig.
No. POINT
(4) (5)(2) (3)(1)
[Example]
CN1a MAIN CN27 2
CONN.
No. Pin No.
CONNECTOR
Remove the parts marked in .
[Example]
Two kinds of double-arrows in connection tables respectively
show kinds of connector/wires.
: Flat wire
: Wire
-
SPEAKER
Connector
Flat wire
Connector
Flat wire
Torque driver
YTU94088
12
Bit
YTU94088-003
3
Cleaning cloth
KSMM-01

1-6 (No.86721)
2.2 ASSEMBLY AND DISASSEMBLY OF CABINET PARTS
2.2.1 Disassembly flow chart
This flowchart indicates the disassembly step for the cabinet
parts and board assembly in order to gain access to item(s) to be
serviced. When reassembling, perform the step(s) in reverse or-
der.
2.2.2 Disassembly method
NOTE 5 :
Take care not to break or damage the FRAME.
NOTE 7a :
Take care not to cut the FPC wire.
NOTE 7b :
Insert and attach the SHEET(FPC) between the MONITOR
FPC and the UPPER CASE(M)ASSEMBLY.
NOTE 7c :
Attachment of the FPC
NOTE 7d :
For disassembly of the MONITOR ASSEMBLY, refer to 2.4
ASSEMBLY AND DISASSEMBLY OF [7]MONITOR ASSEM-
BLY (CABINET PARTS).
NOTE 8a :
Take care not to damage the OP BLOCK ASSEMBLY when
and after the FRONT CASE ASSEMBLY is removed.
NOTE 8b :
Attachment of the WIRE
NOTE 11 :
There are two types of FRONT FRAME ASSEMBLY.
The two types of the FRONT FRAME ASSEMBLY can be dis-
tinguished from each other by their shape.
TYPE B consists of the two parts, namely the tape guide and
the torsion spring.
In exchanging the FRONT FRAME ASSEMBLY, TYPE A can
be exchanged to TYPE B, but TYPE B cannot be exchanged
to TYPE A.
As for the part number, refer to the parts list.
[1]
B/W VF ASSEMBLY
[2]
TOP OPE UNIT
[3]
CASE COVER(S) ASSEMBLY
CASE COVER(M) ASSEMBLY
[4]
[4]
UPPER CASE (M) ASSEMBLY
Inc. MONITOR ASSEMBLY
UPPER CASE (S) ASSEMBLY
[5]
[5]
COVER (UPPER/M) ASSEMBLY
[6]
[7]
FRONT COVER ASSEMBLY
Inc. DC LIGHT,MIC
[8]
MONITOR ASSEMBLY
DC LIGHT ASSEMBLY
[9]
[10]
MIC
[11]
FRONT FRAME SA
LOWER CASE ASSEMBLY
NOTE:
MONITOR MODEL ONLY
LOWER CASE ASSEMBLY
B/W VF ASSEMBLY
TOP OPE UNIT
CASE COVER(S) ASSEMBLY
CASE COVER(M) ASSEMBLY
UPPER CASE (S) ASSEMBLY
UPPER CASE (M) ASSEMBLY
Inc. MONITOR ASSEMBLY
COVER (UPPER/M) ASSEMBLY
MONITOR ASSEMBLY
FRONT COVER ASSEMBLY
Inc. DC LIGHT,MIC
DC LIGHT ASSEMBLY
MIC
FRONT FRAME SA
Fig.C1
Fig.C2
Fig.C3
Fig.C4
Fig.C5
8(S1),CN1a,b,c
3(S2)
CN3,L3a,2(L3b)
(S4),2(L4)
6(S5a),(S5b),(L5)
CN5,6(S5a),(L5)
3(S6),2(L6)
S7a,L7a,SHEET(FPC),2(S7b),L7b
CN8a,CN8b,(S8),L8a,L8b
2(L9)
S10
2(S11)
-
-
-
-
NOTE 5
-
NOTE 7a,b,c,d
NOTE 8a,b
-
-
NOTE 11
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
CN1a
CN1b
CN1c
CN3
CN5
CN8a
CN8b
MAIN CN27
MAIN CN13
MAIN CN12
MAIN CN18
MAIN CN16
MAIN CN6
MAIN CN8
2
14
3
13
25
2
2
STEP
No. PART
CONN.
No. Pin No.
CONNECTOR
NOTE
Fig.
No. POINT
Remove the parts marked in .
-
-
-
-
-
-
SPEAKER
ZOOM UNIT
B/W VF ASSEMBLY
TOP OPE UNIT
MONITOR ASSEMBLY
DC LIGHT
MIC

(No.86721)1-7
Fig.C1
Fig.C2
t
q
u
p
r
FG
y
x
E
s
v
z
w
q
p
r
s1
E
[2]
[1]
x
t
u
E
G
z
y
D
F
vw
D
S
L3b
L3a
[3]
CN1c
CN1b
CN1a
CN3
3
( S1 )
9 ( S2 )
10 ( S2 )
11 ( S2 )
1
( S1 )
2
( S1 )
8
( S1 )
7
( S1 )
4
( S1 )
5
( S1 )
6
( S1 )
aa
12
(S4)
L4
[4]
[4]
aa
aa
<MONITOR MODEL>
<SHOOTING MODEL>

1-8 (No.86721)
Fig.C3
Fig.C4
j
cdk
C
<MONITOR MODEL>
<SHOOTING MODEL>
i
j
k
h
l
k
n
g
g
i
h
j
k
n
C
m
m
m
n
g
14
(S5a)
15
(S5a)
16
(S5a)
17
(S5a)
18
(S5a)
19
(S5b)
14
(S5a)
17
(S5a)
18
(S5a)
15
(S5a)
16
(S5a) 13
(S5a)
CN5
L5
<NOTE 5>
[5]
<NOTE 5>
[5]
e
d
c
f
e
fd
c
AS FOR PUSH SW, DON'T BE
BROKEN AND DON'T FLOAT .
(SEE AND CHECK SW AFTER
ATTACHING FPC.)
[7]
<NOTE 7d>
[6]
L6
20
(S6)
24
(S7b)
25
(S7b)
21
(S6)
22
(S6)
L7a
L7b
UPPER CASE(M)ASSEMBLY
<NOTE 7b>
SHEET(FPC)
<NOTE 7c>
DO NOT MAKE FPC
SLACKEN IN THIS PART.
PROCESSED
THROUGH THIS PART.
INSTALL THE RAINFORCEMENT
BOARD WITH MONITOR OPENED .
( FOR THE DAMAGE PREVENTION
OF PUSH SWITCH .)
<MONITOR MODEL>
FPC
<NOTE 7a>
23
(S7a)

(No.86721)1-9
Fig.C5
[10]
L9
[9]
27
(S10)
B
A
b
b
a
a
B
c
A
c
[11]
CN8b
CN8a
[8]
L8b
26
(S8)
<NOTE 8a>
OP BLOCK ASSEMBLY
<NOTE 11>
L8a
<NOTE 8b>
SCREWING SEQUENCE
SHOULD BE IN ORDER
HERE FIRST AND OTHERS .
LIGHT WIRE
DO NOT OBSTRUCT
THE RECEIVING
PART OF SENSOR
BY WIRE .
PASS THE WIRE
OUTSIDE OF
THIS BOSS .
MIC WIRE
PASS THE WIRE
BETWEEN
THESE BOSSES.
SHIELD SHEET
SHOULD BE PUTTED SHIELD
PLATE BETWEEN FRAME TO MECHA .
28
(S11)
29
(S11)
0.118N.m (1.2kgf.cm)
<NOTE 11>
TYPE A TYPE B

1-10 (No.86721)
2.3 ASSEMBLY AND DISASSEMBLY OF CAMERA SECTION AND BOARD ASSEMBLY
2.3.1 Disassembly flow chart
This flowchart indicates the disassembly step for the cabinet
parts and board assembly in order to gain access to item(s) to be
serviced. When reassembling, perform the step(s) in reverse or-
der.
2.3.2 Disassembly method
NOTE 3 :
For disassembly of the CCD BOARD ASSEMBLY, refer to 2.5
ASSEMBLY AND DISASSEMBLY OF [2]OP BLOCK ASSEM-
BLY CCD BOARD ASSEMBLY (CAMERA SECTION AND
BOARD ASSEMBLY).
NOTE 4 :
When attaching the MECHANISM ASSEMBLY to S.CASE
(MAIN), pull out the FPC CABLE not to be inserted between
the MECHANISM ASSEMBLY and S.CASE (MAIN).
[4]
MECHANISM ASSEMBLY
[5]
REAR BOARD ASSEMBLY
MAIN BOARD ASSEMBLY
[2]
[1]
OP BLOCK ASSEMBLY
[3]
CCD BOARD ASSEMBLY
NOTE:
Please see Service Manual No. 86700 (MECHANISM ASSY).
MAIN BOARD ASSEMBLY
OP BLOCK ASSEMBLY
CCD BOARD ASSEMBLY
MECHANISM ASSEMBLY
REAR BOARD ASSEMBLY
Fig.D1
Fig.D2
Fig.D3
Fig.D4
CN1a,b,c,d,e,f,g,h,SHIELD
2(S1),CN1j,L1
2(S2)
(S4a),(S4b),L4
SHIELD CASE(MAIN)
2(S4c),(S4d)
2(S5)
-
-
NOTE 3
NOTE 4
-
[1]
[2]
[3]
[4]
[5]
STEP
No. PART NOTE
Fig.
No. POINT
CN1a
CN1b
CN1c
CN1d
CN1e
CN1f
CN1g
CN1h
CN1j
MAIN CN15
MAIN CN4
MAIN CN1
MAIN CN5
MAIN CN2
MAIN CN3
MAIN CN7
MAIN CN22
MAIN CN28
-
-
-
-
-
-
-
CN5301
-
24
2
10
11
14
18
11
14
10
CONN.
No. Pin No.
CONNECTOR
Remove the parts marked in .
OP BLOCK ASSEMBLY
LOADING MOTOR
DRUM MOTOR
HEAD(VIDEO,FLY.E)
SENSOR
CAPSTAN MOTOR
A/C HEAD
CCD
REAR UNIT

(No.86721)1-11
Fig.D1
Fig.D2
Fig.D3
Fig.D4
A2 F2
G2
D2
E2
[1]
B2
C2
J
B2
C2
L1
E2
D2
F2
G2
A2
J
CN1e
SHIELD
CN1b
CN1a
1
(S1)
2
(S1)
CN1h
CN1g
CN1f
CN1j CN1d CN1c
h
j
j
h
[3]
<NOTE 3>
[2]
3
(S2)
4
(S2)
gf
c
d
c
d
G1
G2
f
g
7
(S4c)
L4
<NOTE 4>
FRAME ASSEMBLY
6
(S4b)
5
(S4a)
8
(S4c)
[4]
9
(S4d)
SHIELD
CASE
(MAIN)
b
b
a
a
[5]
FRAME
ASSEMBLY
11
(S5)
10
(S5)

1-12 (No.86721)
2.4 ASSEMBLY AND DISASSEMBLY OF [7]MONITOR ASSEMBLY (CABINET PARTS)
2.4.1 Disassembly of MONITOR ASSEMBLY <2.5 TYPE>
NOTE :
Be careful not to soil or scratch the monitor screen through the
disassembly/assembly work.
(1) While removing the three screws 1 to 3 in numerical order
and disengaging the two hooks (L7a and L7b) in alphabet-
ical order, remove the MONITOR COVER ASSEMBLY.
NOTE 7a :
After removing the MONITOR COVER ASSEMBLY, be
careful not to damage the FPC and the connector be-
cause the MONI. HINGE ASSEMBLY moves very easily.
(2) Unlock the connector 7a and then remove the FPC while
lifting the MONI. HINGE ASSEMBLY upwards to remove it
together with the FPC.
NOTE 7b :
When removing the FPC, unlock the connector first and
then lift the MONI. HINGE ASSEMBLY upwards.
Accordingly, the FPC is removed together with the
MONI.HINGE ASSEMBLY.
(3) Unsolder the two soldered parts (SD7).
NOTE 7c :
When removing the MONITOR BOARD ASSEMBLY and
the BACK LIGHT together, it is not necessary to unsol-
der the two soldered parts (SD7).
NOTE 7d :
It depends on the inch size of the monitor assembly
whether the backlight is supplied as an assembly or as
separated parts.
In replacing the backlight assembly, see the Parts List.
(4) Unlock the connector 7b, and disconnect the FPC from the
connector 7b.
(5) Disconnect the SENSOR BOARD ASSEMBLY from MON-
ITOR CASE ASSEMBLY.
(6) Remove the screw (4), and remove the MONITOR BOARD
ASSEMBLY while lifting the side of MONITOR BOARD AS-
SEMBLY which has been attached with screw (4) upwards.
(7) Remove the BACK LIGHT and DIFF SHEET in this order.
(8) Remove the LCD FRAME&LCD MODULE while disengag-
ing L7e and L7f at the both sides of MONITOR CASE AS-
SEMBLY.
(9) Remove the S.CASE.
Fig.2-4-1
D1
C1
F1
F1
C1
LCD FRAME &
LCD MODULE
BACK LIGHT
ASSEMBLY
S.CASE
L7d
<NOTE 7c>
SD7
1
(S7a)
4
(S7a)
L7b
L7a
<NOTE 7b>
CN7a
<NOTE 7a>
<NOTE 7b>
CN7b
<NOTE 7c,d>
L7c
2
(S7b)
3
(S7b)
L7e
L7f
B1
B1
A1
A1
D1
MONITOR CASE ASSEMBLY
MONITOR COVER
ASSEMBLY
MONI. HINGE
ASSEMBLY
MONITOR BOARD
ASSEMBLY
SENSOR BOARD
ASSEMBLY
DIFF SHEET
SHOULD PUT THIS
PART AT RIGHT SIDE .
E1
E1

(No.86721)1-13
2.4.2 Disassembly of MONITOR ASSEMBLY <3.5 TYPE>
NOTE :
Be careful not to soil or scratch the monitor screen through the
disassembly/assembly work.
(1) While removing the three screws 1 to 3 in numerical order
and disengaging the two hooks (L7a and L7b) in alphabet-
ical order, remove the MONITOR COVER ASSEMBLY.
NOTE 7a :
After removing the MONITOR COVER ASSEMBLY, be
careful not to damage the FPC and the connector be-
cause the MONI. HINGE ASSEMBLY moves very easily.
(2) Unlock the connector 7a and then remove the FPC while
lifting the MONI. HINGE ASSEMBLY upwards to remove it
together with the FPC.
NOTE 7b :
When removing the FPC, unlock the connector first and
then lift the MONI. HINGE ASSEMBLY upwards.
Accordingly, the FPC is removed together with the
MONI.HINGE ASSEMBLY.
(3) Unsolder the two soldered parts (SD7).
NOTE 7c :
When removing the MONITOR BOARD ASSEMBLY and
the BACK LIGHT together, it is not necessary to unsol-
der the two soldered parts (SD7).
NOTE 7d :
It depends on the inch size of the monitor assembly
whether the backlight is supplied as an assembly or as
separated parts.
In replacing the backlight assembly, see the Parts List.
NOTE 7e :
Attatchment of the WIRE.
(4) Unlock the connector 7b, and disconnect the FPC from the
connector 7b.
(5) Disconnect the SENSOR BOARD ASSEMBLY from MON-
ITOR CASE ASSEMBLY.
(6) Remove the screw (4), and remove the MONITOR BOARD
ASSEMBLY while lifting the side of MONITOR BOARD AS-
SEMBLY which has been attached with screw (4) upwards.
(7) Remove the BACK LIGHT.
(8) Remove the LCD FRAME&LCD MODULE while disengag-
ing L7e and L7f at the both sides of MONITOR CASE AS-
SEMBLY.
(9) Remove the S.CASE.
Fig.2-4-2
1
(S7a)
2
(S7b)
3
(S7b)
b
4
(S7a)
c
b
f
c
a
L7a L7b
MONITOR COVER
ASSEMBLY
CN7b
d
L7f
L7g
MONITOR CASE
ASSEMBLY
S. CASE
LCD MODULE
BACK LIGHT
ASSEMBLY
<NOTE 7c,d>
LCD FRAME
<NOTE 7b>
CN7a
<NOTE 7a>
L7e
SENSOR BOARD
ASSEMBLY
d
<NOTE 7c>
SD7
a
MONI. HINGE
ASSEMBLY
SD7
WIRE
WIRE
<NOTE 7e>

1-14 (No.86721)
2.5 ASSEMBLY AND DISASSEMBLY OF [2]OP BLOCK ASSEMBLY
CCD BOARD ASSEMBLY (CAMERA SECTION AND BOARD ASSEMBLY)
2.5.1 Precautions
(1) Take care in handling the CCD IMAGE SENSOR, OP LPF
and lens components when performing maintenance etc.,
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 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.
2.5.2 Disassembly of CCD BOARD ASSEMBLY and CCD
BASE ASSEMBLY
(1) Unsolder the CCD BOARD ASSEMBLY by the 14 points
(SD2) 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.
2.5.3 Assembly of CCD BASE ASSEMBLY and CCD
BOARD ASSEMBLY
(1) Set the OP LPF to the OP BLOCK ASSEMBLY so that the
OP side touches the OP BLOCK ASSEMBLY.
NOTE 2a:
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
ASSEMBLY, and then solder it by the 14 points (SD2).
2.5.4 Replacement 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
(2) ZOOM MOTOR
(3) IRIS MOTOR UNIT
NOTE 2b:
When replacing the FOCUS MOTOR or the ZOOM MOTOR,
solder the FPC at a space of about 1 mm above the terminal
pin.
NOTE 2c:
The IRIS MOTOR UNIT includes the FPC ASSEMBLY and
two sensors.
Fig.2-5-1
2
(S2a)
1
(S2a)
(SD2)
OP
side
CCD
side
Blue
<NOTE 2a>
OP LPF
OP BLOCK
ZOOM MOTOR
<NOTE 2b>
SHEET
OP LPF
SPACER
CCD BASE ASSEMBLY
CCD BAORD
ASSEMBLY
SENSOR
IRIS MOTOR UNIT
<NOTE 2b, c>
FOCUS MOTOR
<NOTE 2b>
0.078N.m (0.8kgf.cm)
0.118N.m (1.2kgf.cm)
4
(S2b)
3
(S2b)
6
(S2b)
5
(S2b)
10
(S2b)
11
(S2b)
9
(S2b)
7
(S2c)
8
(S2c)

(No.86721)1-15
2.6 EMERGENCY DISPLAY
Whenever some abnormal signal is input to the mechacon CPU,
an error number (E01, as an example) is displayed in the elec-
tronic view finder. In every error status, such the message as
shown below alternately appear over and over.
• In an emergency mode, all operations except turning on/off the
POWER switch are ineffectual.
(NTSC)
2.7 AUTOMATIC DEMONSTRATION
Automatic Demonstration takes place when “DEMO MODE” is
set to “ON” (factory-preset).
(1) Available when the Power Switch is set to “A” or “M” while
pressing down the Lock Button located on the switch.
(2) Performing any operation during the demonstration stops
the demonstration temporarily. If no operation is performed
for more than 1 minute after that, the demonstration will
resume.
(3) “DEMO MODE” remains “ON” even if the camcorder power
is turned off.
(4) To cancel Automatic Demonstration, set the Power Switch
to “M” and press the MENU Wheel in while the demo is in
progress. This takes you directly to the demo mode’s Set-
ting Menu (so you will not have to go through the main
Menu Screen). Rotate the MENU Wheel to select “OFF”
and press it.
NOTE:
• When a tape whose Erase Protection tab is in the position
that allows recording is loaded in the
camcorder, demonstration is not available.
• If you do not detach the Lens Cap, you cannot see the actual
changes of the Automatic Demonstration activated on the
LCD monitor or viewfinder.
* Applicable models only.
Fig.2-7-1
Example (in case of the error number E01):
E01
UNIT IN
SAFEGUARD MODE
E01
REMOVE AND
REATTACH BATTERY
E. VF Symptom Mode when observed
E07 Short circuit of capstan MDA Power ON
E06 CAPSTAN FG input absent CAPSTAN rotation
E04 DRUM FG input absent DRUM rotation
E03 SUPPLY REEL FG input absent REC, PLAY, SEARCH, FF/REW
E02 Mode control motor rotates for more than 6.0 sec UNLOADING without shift to next
mode.
UNLOADING
E01 Mode control motor rotates for more than 6.0 sec LOADING without shift to next mode. LOADING
E00 Overtime the programming transaction REC, PLAY
MENU Wheel
Power Switch
Lock Button

1-16 (No.86721)
2.7.1 Operation procedure
Fig.2-7-2
2.7.2 Flow chart
NOTE:
When demonstration is performed, some of the following func-
tions that a model does not have are omitted.
Fig.2-7-3
R
D
N
E
.
E
C
X
Z
T
M
O
S
O
O
Y
D
M
S
E
TEM ME
S
N
P
U
TO S
C
Y
A
S
M
T
E
E
R
M
A
M
M
E
E
N
N
U
U
TITLE MOVIE
EXPOSURE AUTO
M. W. B. AUTO
R
I
T
D
D
T
E
N
E
A
E
R
O
C
T
L
T
M
E
.
E
E
O
T
C
T
/
U
S
A
I
T
M
T
M
R
Y
M
M
I
A
I
O
N
S
E
E
M
C
M
D
T
R
E
R
E
E
E
A
O
M
M
M
E
E
N
O
O
O
O
N
U
F
F
F
F
U
F
OSDOU T P UT O N
F
F
F
OFF
Display 1
Display 2
Display 4
Display 3
Refer to Fig. 2-7-3.
While the DEMONSTRATION
mode is activated, a word of
DEMONSTRATION is appearing
on the screen scrolling from right
to left.
DEMO MODE
OFF
ON
EXIT
R
I
T
D
D
T
E
N
E
A
E
R
O
C
T
L
T
M
E
.
E
E
O
T
C
T
/
U
S
A
I
T
M
T
M
R
Y
M
M
I
A
I
O
N
S
E
E
M
C
M
D
T
R
E
R
E
E
E
A
O
M
M
M
E
E
N
O
O
O
O
N
U
F
F
F
N
U
F
F
F
OSDOU T P UT O N
1. Set the Power Switch to turn on
the "M".
Press the MENU Wheel once.
The first page of the DISPLAY
appears on the LCD monitor (or in
the viewfinder).
Press the MENU Wheel once.
The second page of the DISPLAY
appears on the LCD monitor (or in
the viewfinder).
2. Press the MENU Wheel once.
The third page of the DISPLAY
appears on the LCD monitor (or in
the viewfinder).
3. Turn the MENU Wheel in the
direction ofthe arrow to set the
cursor at "DEMO MODE".
Then, press the MENU Wheel
once.
The third page the DEMO
MODE appearson the LCD
monitor (or in the viewfinder).
4. Turn the MENU Wheel in the
direction ofthe arrow to set the
cursor at "ON".
Then, press the MENU Wheel
once.
The fourth page of the DISPLAY
appears on the LCD monitor (or in
the viewfinder).
("DEMO MODE" is switched "ON"
from "OFF" status.)
5. Press the MENU Wheel once.
The camcorder automatically
enter the DEMONSTRATION
mode and it repeats
demonstration operation.
While the camcorder is performing
demonstration, all operations
except turning on/off the Power
Switch are ineffectual.
1. TITLE CALL and FUTURE
2. EASY PC CONNECTION
3. CREATE IMAGES & E-MAIL
4. NIGHT-SCOPE OFF
5. NIGHT-SCOPE ON
6. VHS
7. S-VHS (For S-VHS MODEL ONLY)
8. SNAP SHOT
9. PROGRAM AE FOG
10. PROGRAM AE ND EFFECT
11. FADE/WIPE BLACK
12. FADE/WIPE MOSAIC
13. FADE/WIPE SHUTTER
14. FADE/WIPE SLIDE
15. FADE/WIPE DOOR
16. FADE/WIPE CORNER
17. FADE/WIPE WINDOW
18. DIGITAL EFFECT NEGA/POSI
19. DIGITAL EFFECT STRETCH
20. DIGITAL EFFECT MOSAIC
21. DIGITAL EFFECT SEPIA
22. DIGITAL EFFECT B/W
23. DIGITAL EFFECT B.FILTER
24. DIGITAL EFFECT R.FILTER
25. DIGITAL EFFECT SOLARI
26. DIGITAL EFFECT STROBE
27. DIGITAL EFFECT CLASSIC
28. DIGITAL EFFECT VIDEO ECHO
29. WIDE OFF
30. WIDE ON
31. WIDE OFF
32. P.STABILIZER OFF
33. P.STABILIZER ON
34. P.STABILIZER OFF
35. P.STABILIZER ON

(No.86721)1-17
2.8 TAKE OUT CASSETTE TAPE
In the event that the set enters the emergency mode as it is
loaded with a cassette tape and the cassette tape cannot be
ejected with the EJECT button, manually, take it out of the set
according to the following procedure.
NOTE :
• If the mechanism comes into the unloading mode as the cas-
sette tape is not held by hand, it results in tape damage.
(1) Disconnect the set from the power source.
(2) Remove the LOWER CASE ASSEMBLY and TOP OPE
UNIT (see Fig.C1, page 6).
(3) Connect a jumper wire to each pole of the LOADING
MOTOR as shown by the magnified view (Fig. 2-8-1).
(4) While holding down the cassette housing by hand, con-
nect the jumper wires to a battery to run the mechanism
to the EJECT position four unloading. If this unloading
operation is performed as the cassette housing is not
held down by hand, the front lid of the cassette may dam-
age the tape when it is ejected.
(5) For taking in the slack of the tape, run the mechanism to
the EJECT position as the front lid of the cassette is left
open, and turn the TAKE-UP GEAR in the forward direc-
tion to wind up the tape. After confirming that the tape
has completely been wound up and the supply reel is
idling, take the cassette tape out of the cassette housing.
Fig.2-8-1
MAGNIFIED VIEW
(DC1.5V)
b
BATTERY
TAKE-UP GEAR

1-18 (No.86721)
2.9 SERVICE NOTE
Use the following chart to manage screws
Symbol No. [2] [3] [4] [5]
Removing order of screw 1 2 3 4 5 6 7 8 9 10 11 - 12 13 14 15 16 17 18 19
Place to stick screw -
-
Screw tightening torque
Reference drawing
Fig.C2
Fig.C3
Symbol No. [6] [7]
[7] [2]
[8] [9] [10]
Removing order of screw 20 21 22 23 24 25 26 -27 28 29
Place to stick screw -
-
-
Screw tightening torque
Reference drawing
Symbol No. Symbol No. Symbol No.
[4]
Removing order of screw 1 2 3 4 5 6 7 8 9 10 11
Place to stick screw
Screw tightening torque
Reference drawing Fig.D3
<2.5 OP BLOCK ASSEMBLY>
Removing order of screw 1 2 3 4 Removing order of screw 1 2 3 4 5 6 7 8 9 10 11
Place to stick screw Place to stick screw
Screw tightening torque Screw tightening torque
Reference drawing Reference drawing
<NOTE>
Fig.2-5-1
Fig.C1
Fig.D1 Fig.D2 Fig.D4
[5]
Fig.2-4-1,2
[1]
Fig.C4 Fig.C5
<2.4 MONITOR ASSEMBLY> <2.3 CAMERA SECTION AND BOARD ASSEMBLY> <2.2 CABINET PARTS>
[11]
[1] [2]/[3]
**

(No.86721)1-19
SECTION 3
ADJUSTMENT
3.1 PREPARATION
(1) Precaution
This model does not contain adjustment controls (VR).
General deck system, camera system and monitor system
adjustment are not required. However, if MAIN board need
replacement, please use original EEP ROM on to new
board. Then adjustment are not required. And if parts such
as the following need replacement, special computerized
adjustment are required. 3.4.1 ELECTRICAL ADJUST-
MENT WITH PERSONAL COMPUTER is setup and it ad-
justs using a service support system. Please contact to
JVC Service for detail information.
• OP BLOCK
• EEP ROM (IC102 of MAIN board)
• MONITOR
In the event of malfunction with electrical circuits, trouble-
shooting with the aid of proper test instruments most be
done first, and then commence necessary repair, replace-
ment and adjustment, etc.
a) In case of wiring to chip test points for measurement,
use IC clips, etc. to avoid any stress.
b) Since connectors are fragile, carefully handle them in
disconnecting and connecting.
c) Short circuit between operation unit and DECK chas-
sis.
(2) Required test equipment
a) Color TV monitor.
b) AC power adapter
c) Oscilloscope (dual-trace type, observable 100 MHz
or higher frequency)
• It is recommended to use one observable 300 MHz
or higher frequency.
d) Digital voltmeter
e) Frequency counter (with threshold level adjuster)
f) Personal computer
3.2 TOOLS REQUIRED FOR ADJUSTMENT
Fig.3-2-1
12
34
Cassette torque meter
PUJ50431-2
Alignment tape
MHP-C
Alignment tape
MHP-LC
Roller driver
PTU94002-2
INF adjustment lens
YTU92001B
56
INF lens holder
YTU94087
7
9
8
10
11 12
13 14
Camera stand
YTU93079
Conn. ring
YTU92001-111
Gray scale chart
YTU94133A
Color bar chart
YTU94133C
Light box assembly
YTU93096A
Jig connector cable
YTU93082G
PC cable
QAM0099-002
1615
Cleaning cloth
KSMM-01
Communication cable
YTU93107A
Service support system
YTU94057-65

1-20 (No.86721)
1,2. Alignment tape
To be used for check and adjustment of interchangeability of
the mechanism.
(Video: Color bar signal, Audio: Non-signal)
3. Cassette torque meter
This is used to cheek the back tension and play torque during
mechanism adjustment.
4. Roller driver
To be used to turn the Roller driver to adjustment of the linear-
ity of playback envelope.
5.INF adjustment lens
To be used for adjustment of the camera system. For the us-
age of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
6.Conn. ring
The connector ring to attach the INF lens to the head of the OP
lens. For the usage of the Conn.ring.
7.Gray scale chart
To be used for adjustment of the camera system. For the us-
age of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
8.Color bar chart
To be used for adjustment of the camera system. For the us-
age of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.
9.INF lens holder
To be used together with the Camera stand (11) 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.
10.Light box assembly
To be used for adjustment of the camera system. For the us-
age of the Light box assembly, refer to the Service Bulletin No.
YA-SB-10035.
11.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.
12. Jig connector cable
To be connected to the Jig connector jack of the main board
and used for measurement and adjustment.
Fig.3-2-2
13.Communication Cable
Connect the Communication cable between the PC cable and
Jig connector cable when performing a PC adjustment.
14.Service support system
To be used for adjustment with a personal computer. Software
can be downloaded also from JS-net.
15.PC cable
To be used to connect the Videocamera and a personal com-
puter with each other when a personal computer issued for ad-
justment.
16.Cleaning cloth
Recommended the Cleaning cloth to wipe down the video
heads, mechanism (tape transport system), optical lens sur-
face.
MAIN CN25 JIG BOARD (LABEL)
AL_L3.2V 1 1 AL_L3.2V
MCU_RST 11 2 NC
NC 2 3 DIAL_PB
V_TP_FM 12 4 DIAL_MN
DIAL_PB 3 5 JIGCN_SW
V_FF 13 6 GND
DIAL_MN 4 7 TXD
EJECT_SW 14 8 RXD
JIGCN_SW 5 9 PLI_AD
PB_CTL 15 10 VPP_7.8V
GND 6 11 MCU_RST
GND 16 12 V_TP_FM
TXD 7 13 V_FF
V_OUT 17 14 EJECT_SW
RXD 8 15 PB_CTL
AO_SIG_J 18 16 GND
PLI_AD 9 17 V_OUT
V_OVL 19 18 AO_SIG_J
VPP_7.8V 10 19 V_OVL
DISCHG_L 20 20 DISCHG_L