JVC GR-FX12EG, GR-SX202EG, GR-SX22EG/EK Service Manual
SERVICE MANUAL
COMPACT VHS CAMCORDER
GR-FX12EG,SX202EG,SX22EG/EK
VHS
PAL
625
SPECIFICATIONS
Camcorder
General
Format : S-VHS (GR-SXM607)
Power source : DC 11 V
Power consumption
LCD monitor* off,
viewfinder on : 4.0 W
LCD monitor* on,
viewfinder off : 4.5 W
Video light** : 3.0 W
* Models equipped with LCD monitor only.
** GR-SXM607 only.
Signal system : PAL-type
Video recording system
Luminance : FM recording
Colour : Converted sub-carrier
Cassette :
Tape speed
SP : 23.39 mm/sec.
LP : 11.70 mm/sec.
Recording time (max.)
SP : 60 minutes
LP : 120 minutes
Operating
temperature :0°C to 40°C
VHS PAL standard
(Using AC Adapter)
DC 6 V
(Using battery pack)
direct recording
Conforms to VHS standard
/ cassette
(with EC-60 cassette)
Operating humidity : 35% to 80%
Storage temperature : –20°C to 50°C
Weight : Approx. 910 g (GR-SXM607)
Dimensions : 200 mm x 112 mm x 118 mm
(W x H x D)
* Models equipped with LCD monitor only.
Pickup : 1/4" format CCD
Lens : F1.6, f = 3.9 mm to 62.4 mm,
Viewfinder : Electronic viewfinder with 0.5"
White balance
adjustment : Auto/Manual adjustment
LCD monitor : 3" diagonally measured,
(models equipped with
LCD monitor only)
Speaker : Monaural
(models equipped with
LCD monitor only)
Connectors
JLIP/EDIT : ø3.5 mm, 4-pole, mini-head
Video : 1 V (p-p), 75 Ω unbalanced,
Approx. 900 g (GR-FXM37)
16:1 power zoom lens with
auto iris and macro control,
black/white CRT
LCD panel/TFT active matrix
system (GR-SXM607)
: 2.5" diagonally measured, LCD
panel/TFT active matrix system
(GR-FXM37)
filter diameter 40.5 mm
jack (compatible with
RC-5325 plug)
analogue output
(via Video output connector)
Audio : 300 mV (rms), 1 kΩ analogue
S-Video : Y : 1 V (p-p), 75 Ω,
output
(via Audio output connector)
analogue output
C : 0.29 V (p-p), 75 Ω,
analogue output
AC Adapter AP-V10EG
Power requirement : AC 110 V to 240 V`,
Power consumption : 23 W
Output : DC 11 V
Dimensions : 59 mm x 31 mm x 84 mm
(W x H x D)
Weight : Approx. 140 g
Optional Accessories
• Battery Packs BN-V12U, BN-V20U, BN-V400U
• Compact S-VHS ( ) Cassettes SE-C45/30
• Compact VHS (
• Remote Control Unit RM-V700U
• Active Carrying Bag CB-V7U
• Cassette Adapter C-P7U
Some accessories are not available in some areas. Please
consult your nearest JVC dealer for details on accessories
and their availability.
Specifications shown are for SP mode unless otherwise
indicated. E & O.E. Design and specifications subject to
change without notice.
50 Hz/60 Hz
, 1 A
) Cassettes EC-60/45/30
December 2000
No.86590
TABLE OF CONTENTS
Section Title Page
Important Safety Precautions
INSTRUCTIONS
1. DISASSEMBLY
1.1 SERVICE CAUTIONS .......................................................... 1-1
1.1.1 Precautions .................................................................. 1-1
1.1.2 How to read the disassembly and assembly ................ 1-1
1.1.3 Connection of the wires ................................................ 1-1
1.2 TOOLS REQUIRED FOR ADJUSTMENTS ......................... 1-2
1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS .............1-3
1.3.1 Disassembly flow chart................................................. 1-3
1.3.2 Disassembly method .................................................... 1-4
1.4 DISASSEMBLY/ASSEMBLY OF CAMERA SECTION
AND DECK SECTION .......................................................... 1-8
1.4.1 Flowchart of disassembly ............................................. 1-8
1.4.2 Disassembly method .................................................... 1-8
1.5 REPLACEMENT OF CCD IMAGE SENSOR .....................1-10
1.5.1 Removal of CCD image sensor .................................. 1-10
1.5.2 Installation of new CCD image sensor ....................... 1-10
1.5.3 Replacement of CCD board assy ............................... 1-10
1.6 TAKE OUT CASSETTE TAPE............................................ 1-11
1.7 EMERGENCY DISPLAY..................................................... 1-12
1.8 DEMONSTRATION MODE ................................................ 1-12
1.9 SERVICE NOTE ................................................................. 1-14
Section Title Page
4.2 CPU SCHEMATIC DIAGRAM .............................................. 4-5
4.3 VTR ASP SCHEMATIC DIAGRAMS .................................... 4-7
4.4 MECHA MDA SCHEMATIC DIAGRAM ................................4-9
4.5 VTR DSP SCHEMATIC DIAGRAM .................................... 4-11
4.6 DSP SCHEMATIC DIAGRAM............................................. 4-13
4.7 IRIS & AF/ZOOM SCHEMATIC DIAGRAMS ...................... 4-15
4.8 VIDEO OUT SCHEMATIC DIAGRAM ................................ 4-17
4.9 REGULATOR SCHEMATIC DIAGRAM..............................4-19
4.10 LCD CTL SCHEMATIC DIAGRAM ..................................... 4-21
4.11 JACK AND CCD SCHEMATIC DIAGRAMS ....................... 4-23
4.12 REAR UNIT AND SENSOR SCHEMATIC DIAGRAM ........ 4-25
4.13 TOP OPE AND ZOOM UNITSCHEMATIC DIAGRAMS....... 4-26
4.14 B/WELECTRONIC
VIEWFINDER SCHEMATIC DIAGRAMS .............................. 4-27
4.15 MAIN CIRCUIT BOARD ..................................................... 4-29
4.16 CCD CIRCUIT BOARD ...................................................... 4-35
4.17 ELECTRONIC VIEWFINDER CIRCUIT BOARD ...............4-37
4.18 POWER SYSTEM BLOCK DIAGRAM ...............................4-39
4.19 Y/C BLOCK DIAGRAM....................................................... 4-41
4.20 CAMERA BLOCK DIAGRAM ............................................. 4-43
4.21 CPU/MDA BLOCK DIAGRAM ............................................4-47
4.22 WAVEFORMS .................................................................... 4-49
4.23 VOLTAGE CHARTS ........................................................... 4-50
2. MECHANISM ADJUSTMENT
2.1 Required adjustment tools...................................................... 2-1
5. PARTS LIST
5.1 PACKING ASSEMBLY <M1>................................................ 5-1
5.2 FINAL ASSEMBL Y <M2> ..................................................... 5-3
3. ELECTRICAL ADJUSTMENT
3.1 ELECTRICAL ADJUSTMENT............................................... 3-1
3.1.1 PREPARATION ............................................................ 3-1
3.2 ELECTRONIC VIEWFINDER (E.VF) ADJUSTMENT .......... 3-3
3.2.1 Horizontal sync.............................................................3-3
3.2.2 PLL adjustment ............................................................ 3-3
5.3 MECHANISM ASSEMBLY <M3>.......................................... 5-6
5.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4>.................5-8
5.5 ELECTRICAL PARTS LIST .................................................. 5-9
MAIN BOARD ASSEMBLY <01>.......................................... 5-9
CCD BOARD ASSEMBLY <02> ......................................... 5-15
E. VF BOARD ASSEMBLY <50>........................................ 5-15
3.2.3 Centering......................................................................3-3
3.2.4 Foucs............................................................................ 3-4
3.2.5 Brightness .................................................................... 3-4
4. CHARTS AND DIAGRAMS
NOTES OF SCHEMATIC DIAGRAM ................................... 4-1
CIRCUIT BOARD NOTES .................................................... 4-2
4.1 BOARD INTERCONNECTIONS .......................................... 4-3
The following table lists the differing points between Models GR-FX12EG and GR-SX22EG/EK,SX202EG in this series.
GR-FX12EG GR-SX22EG GR-SX22EK GR-SX202EG
VIDEO LIGHT NOT USED USED USED
IR RECEIVER NOT USED NOT USED USED
BODY COLOR MOLD BLAK SILVER SILVER
IMAGE SENSOR 1/4” 320K 1/4” 320K 1/4” 470K
HORIZONTAL RESOLUTION 330LINES 330LINES 400LINES
SNAP SHOT NOT USED NOT USED USED(FULL ONL Y)
NIGHT SCOPE NOT USED NOT USED USED
5 SEC REC SW USED USED NOT USED
S-VHS ON/OFF NOT USED USED USED
VIDEO OUT SELECT PAL/SECAM NOT USEDUSED USED NOT USED USED
AC CORD CEE TYPE CEE TYPE UK TYPE CEE TYPE
BATTERY PACK BN-BV11U-E BN-V20BU BN-V20BU
REMOTE CONTROL UNIT NOT USED NOT USED USED
Important Safety Precautions
Connector
Metal sleeve
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.
v
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 com-
ply 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:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
5. Use specified insulating materials for hazardous live parts.
Note especially:
1) Insulation Tape 3) Spacers 5) Barrier
2) PVC tubing 4) Insulation sheets for transistors
6. When replacing AC primary side components (transformers,
power cords, noise blocking capacitors, etc.) wrap ends of
wires securely about the terminals before soldering.
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
transformer 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.
1) Connector part number : E03830-001
2) Required tool : Connector crimping tool of the proper type
which will not damage insulated parts.
3) Replacement procedure
(1) 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.3
(2) 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
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.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.
Fig.4
(3) Align the lengths of the wires to be connected. Insert
the wires fully into the connector.
Fig.5
(4) 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.
1.25
2.0
5.5
Fig.6
(5) Check the four points noted in Fig.7.
Not easily pulled free
Wire insulation recessed
more than 4 mm
Fig.7
Crimping tool
Crimped at approx. center
of metal sleeve
Conductors extended
1
S40888-01
v
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 table 1 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 table 1
below.
Chassis
Fig. 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 figure 9 and
following table 2.
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 figure 10 and grounding specifications.
AC inlet
Earth pin
Exposed accessible part
Grounding Specifications
Region
USA & Canada
Europe & Australia
Externally
exposed
accessible part
Grounding Impedance (Z)
d
d'
≤
Z 0.1 ohm
≤
Z 0.5 ohm
Power cord,
primary wire
Z
V
Fig. 9
ab
c
Milli ohm meter
Fig. 10
AC Line Voltage
100 V
100 to 240 V
110 to 130 V
110 to 130 V
200 to 240 V
100 V
110 to 130 V
110 to 130 V
220 to 240 V
Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
Region
Japan
USA & Canada
Europe & Australia R 10 MΩ/500 V DC
Region Load Z
Japan
USA & Canada
Europe & Australia
Table 2 Leakage current specifications for each region
Insulation Resistance (R)
≤
R 1 MΩ/500 V DC
≥≥
1 MΩ R 12 MΩ/500 V DC
≤
Table 1 Specifications for each region
1 kΩ
0.15 µF
1.5 kΩ
2 kΩ
50 kΩ
Dielectric Strength
AC 1 kV 1 minute
AC 1.5 kV 1 miute
AC 1 kV 1 minute
AC 3 kV 1 minute
AC 1.5 kV 1 minute
i 1 mA rms Exposed accessible parts
i 0.5 mA rms
i 0.7 mA peak
i 2 mA dc
i 0.7 mA peak
i 2 mA dc
2
≤
≤
≤
≤
≤
≤
(Class 2)
(Class 1)
Clearance Distance (d), (d')
≤
d, d' 3 mm
≤
d, d' 4 mm
≤
d, d' 3.2 mm
≤
d 4 mm
≤
d' 8 mm (Power cord)
≤
d' 6 mm (Primary wire)
a, b, cLeakage Current (i)AC Line Voltage
Exposed accessible parts
Antenna earth terminals
Other terminals
S40888-01
SECTION 1
Connector
Wire
DISASSEMBLY
1.1 SERVICE CAUTIONS
1.1.1 Precautions
1. Before disassembling/re-assembling the set as well as
soldering parts, make sure to disconnect the power
cable.
2. When disconnecting/connecting connectors, pay enough
attention to wiring not to damage it.
3. In general, chip parts such as resistor, shorting jumpers
(0-ohm resistor), ceramic capacitors, diodes, etc. can not
be reused after they were once removed.
4. When installing parts, be careful not to do with other parts
as well as not to damage others.
5. When removing ICs, be careful not to damage circuit
patterns.
6. Tighten screws properly during the procedures. Unless
specified otherwise, tighten screws at torque of 0.196 N·m
(2.0 kgf·cm).
1.1.2 How to read the disassembly and assembly
(For Cabinet Parts)
STEP
/LOC PART
NO.
Fig.
No.
REMOVAL
*UNLOCK/RELEASE/
UNPLUG/UNCLAMP/
UNSOLDER
1 CASSETTE C1 (S1),3(L1a),(L1b),(L1c)
COVER ASSEMBLY Push button, spring
1.1.3 Connection of the wires
1. Pull the connector structure upward to release the clamp
when removing or inserting the flat wire cable.
Fig. 1-1-1
Wire
2
UPPER CASE C2 2(S2), (L2)
LOWER CASE C3 9(S3), (L3a), (L3b)
3 ASSEMBLY(INCL. *CN 3a 3b
E. VF. ASSEMBLY) CAP (RCA jack)
▲
▲
(1) (2) (3) (4)
(1) Order of steps in Procedure
When reassembling, preform the step(s) in the reverse
order. These numbers are also used as the identifica-
tion (location) No. of parts Figures.
(2) Part to be removed or installed.
(3) Fig. No. showing Procedure or Part Location.
C = Cabinet
CA = Camera
D = Deck
(4) Identification of part to be removed, unhooked, unlocked,
released, unplugged, unclamped or unsoldered.
P = Spring
W = Washer
S = Screw
* = Unhook, unlock, release, unplug or unsolder.
2(S3) = 2 Screws (S3)
CN = Connector
(5) Adjustment information for installation.
▲
▲
NOTE:
Connector
After removing the wire, return the stopper to
its original position, because it is apt to come
off if it is left open.
Fig. 1-1-2
1-1
1.2 TOOLS REQUIRED FOR ADJUSTMENTS
Alignment tape
(for SP interchangeability)
1
3
5
78
MHPE-C
Torque driver
YTU94088
INF adjustment lens
YTU92001B
Gray Scale Chart
YTU94133A
Alignment tape
(for N. SP PB Y/C level)
2
4
6
MHVE-2C
YTU94088-003
Conn. ring
YTU92001-111
Color Bar Chart
YTU94133C
Bit
15 16
PC cable
QAM0099-002
Table 1-2-1
Cleaning cloth
KSMM-01
INF lens holder
910
11 12
13
YTU94087
Camera stand
YTU93079
Jig connector cable
YTU93106A
Light box Assembly
YTU93096A
Extension connector
YTU94145B-30
Service support system software
14
YTU94057-51
1-2
1,2. Alignment tape
To be used for check and adjustment of interchangeability
of the mechanism.
(Video: Color bar signal, Audio: Non-signal)
3. Torque driver
Be sure to use to fastening the mechanism and exterior
parts because those parts must strictly be controlled for
tightening torque.
4. Bit
This bit is slightly longer than those set in conventional
torque drivers.
5. INF adjustment lens
To be used for adjustment of the camera system.
6. Conn. ring
The connector ring to attach the INF. lens to the head of
the OP lens.
7. Color bar chart
To be used for adjustment of the camera system.
8. Gray scale chart
To be used for adjustment of the camera system.
9. INF lens holder
To be used together with the camera stand (11) for
operating the VideoMovie 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.
10. Light box
To be used for adjustment of the camera system.
11. Camera stand
To be used together with the INF adjustment lens holder.
12. Extention connector
To be used to JIG connector cable
13. JIG connector cable
Connected to CN25 of the main board and used for
measuring error rates, etc.
14. Service support software
To be used for adjustment with a personal computer.
15. PC cable
To be used to connect the VideoMovie and a personal
computer with each other when a personal computer is
used for adjustment.
16. Cleaning cloth
Recommended cleaning cloth to wipe down the video
heads, mechanism (tape transport system), optical lens
surface.
1.3 DISASSEMBLY/ASSEMBLY OF CABINET PARTS
1.3.1 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 order. Bend, route and dress the flat cables as they were originally.
1 Cassette cover assembly
▼
2 Upper case
▼
3 Lower case assembly
(Incl. E. VF assembly)
▼
4 E. VF assembly
▼
5 Top operation unit
6 Rear unit
▼
▼
7 Front cover assembly
(Incl. Microphone,
DC light assembly)
▼
8 Microphone
9 DC light assembly
▼
▼
▼
0 Upper cover (S) assembly
- Front frame assembly
▼
Note:
For screw management, refer to the table appearing
in the section "3.3 SERVICE NOTE" (page 3-5).
1-3
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