JVC KV-MR9000 User manual

SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED No.49785
2003/11
9-INCH WIDE COLOR MONITOR
49785200311 KV-MR9000
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Area Suffix
J -------------- Northern America
E ------------ Continental Europe
U --------------------- Other Areas
T V T UN E R
T V
C H
H / P
V O L U M E
M O N I T O R
M O D E
M E NU
CA LL
V C P
R F
V O CA L
S K I P
A . M E M O
RM-RK500

1-2 (No.49785)
SPECIFICATION
Design and specifications are subject to change without notice.
The liquid crystal panel is built with very high precision technology and has at least 99.99% precision technology and has at least
99.99% effective image pixels. Be aware that on 0.01% of the panel there may be missing pixels or constantly lit pixels.
WIDE COLOR MONITOR
Display 9 inch Liquid crystal panel
Number of Pixel 336,960 pixels (480 vertical ×234 horizontal ×3)
Drive Method TFT (Thin Film Transistor) active matrix format
Cordless Audio Infrared audio transmitter (Support IR receiver stereo headphones)
L-channel 2.3 MHz
R-channel 2.8 MHz
Effective listening angle 30°
Effective range 4 m (13.1 ft)
Dimensions (W ×H ×D) 314mm ×38mm ×257mm (12-3/8" ×1-1/2" ×10-1/8") including Shroud
Mass 1.2 kg (2.7 lbs) including Shroud
MONITOR CONNECTION UNIT
Input Video RCApin×2 circuits 1 V(p-p), 75 ΩAudio RCA pin ×2 circuits 0.5 V(rms)
Tuner 8-pin DIN connector (only for JVC's KV-C10) Output
Display 13-pin DIN connector
Video RCA pin ×1 circuit 1 V(p-p), 75 Ω
Audio RCA pin ×1 circuit 1 0.5 V(rms)
Dimensions (W ×H ×D) 108.5mm ×28.5mm ×78mm (4-5/16" ×1-1/8" ×3-1/8") excluding projections
Mass 160 g (0.36 lbs)
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)
Allowable Storage Temperature -20°C to +80°C (-4°F to 176°F) Ceiling light bulb12V/3W
ACCESSORIES Metal plate ×1, Shroud ×1, Extension cord ×1, Power cord ×1, Ceiling light cord ×1, Remote
controller(with the battery) ×1, Screw(M4 ×5mm)(M4 ×1/4") ×4, Screw(M4 ×12mm)(M4 ×1/2") ×4

(No.49785)1-3
SECTION 1
PRECAUTION
1.1 Safety Precautions
!Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.

1-4 (No.49785)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

(No.49785)1-5
SECTION 3
DISASSEMBLY
3.1 Base cover section
3.1.1 Removing the base cover aseembly
(See Figs.1 to 2)
(1) Move the monitor unit in the direction arrow.
(2) Remove the four screws Aattaching the base cover as-
sembly.
REFERENCE:
Reassembly of the base cover aseembly
Before attaching the base cover, put the cable through the hole
aof the shroud. (See Fig.2)
Fig.1
Fig.2
Shroud
Monitor unit
Shroud
Base cover
assmbly
Hole a
AA

1-6 (No.49785)
3.1.2 Removing the monitor unit
(See Figs.3 to 5)
• Prior to performing the following procedure, remove the base
cover aseembly.
(1) Release the four claws battaching the shaft cover.
(2) Remove the four screws Battaching the hinge on the base
cover aseembly.
(3) Remove the two screws Cattaching the connect board on
the back of the base cover aseembly.
(4) Disconnect the two connectors B1 and B2 on the connect
board.
REFERENCE:
Reassembly of the monitor unit section
Before attaching the monitor unit, put the flexible wire through
the hole cof the base cover aseembly. (See Fig.3)
3.1.3 Removing the connect board
(See Fig.5)
• Prior to performing the following procedure, remove the base
cover aseembly.
(1) Remove the two screws Cattaching the connect board on
the base cover aseembly.
(2) Disconnect the two connectors B1, B2, CON1 and CON2
on the connect board.
Fig.3
Fig.4
Fig.5
Base cover assembly
Cover shaftCover shaft
Claw b Claw b
Hole c
BB
CON1
CON2
Connect board C
B2
B1

(No.49785)1-7
3.1.4 Removing the lamp control board
(See Fig.6)
• Prior to performing the following procedure, remove the base
cover aseembly.
(1) Disconnect the three connectors B3, B4 and B6 on the
lamp control board.
(2) Remove the three screws Dattaching the lamp control
board on the base cover aseembly.
Fig.6
3.1.5 Removing the lamp bulb(L) and lamp bulb(R) board
(See Figs.7 to 8)
• Prior to performing the following procedure, remove the base
cover aseembly.
(1) Remove the two screws Eand four screws Fattaching the
acryl covers(L) and (R) on the back of the base cover
aseembly.
(2) Disconnect the two connectors B3 and B4 on the lamp con-
trol board.
(3) Remove the lamp bulb board(L) and lamp bulb board(R) in
the direction arrow. Fig.7
Fig.8
B6B4 B3
Lamp control board
D
F
E
F
E
B4 B3
Lamp control board
Acryl cover (L)
A
cryl cover (R)
Lamp bulb
board (L)
Lamp bulb
board (R)

1-8 (No.49785)
3.1.6 Removing the cable assembly
(See Fig.9)
• Prior to performing the following procedure, remove the base
cover aseembly.
(1) Remove the two screws Gattaching the connect board on
the back of the base cover aseembly.
(2) Remove the screw Hand screw Jattaching the wire brack-
et and wire fixer on the base cover aseembly.
(3) Disconnect the two connectors CON1 and CON2 on the
connect board.
(4) Disconnect the connector B6 on the lamp control board.
(5) Remove the cable attaching the wire bracket and wrire fixer
on the base cover aseembly.
Fig.9
3.1.7 Removing the lamp bulb
(See Figs.10 to 11)
• Prior to performing the following procedure, remove the base
cover assembly.
(1) Release the two claws dattaching the lamp cover(L) and
lamp cover (R), remove the base cover aseembly.
(2) Remove the lamp bulb attaching the lamp holder.
Fig.10
Fig.11
Lamp control boardB6
CON1
CON2
Connect board
Code holder
Wire bracketwire fixer
HJ G
Lamp cover (L)
Shroud Shroud
Claw dClaw d
Lamp cover (R)
LampLamp
Lamp holderLamp holder

(No.49785)1-9
3.2 Shroud section
3.2.1 Removing the metal plate
(See Fig.12)
(1) Remove the four screws Kattaching the metal plate on the
shroud.
Fig.12
KK
ShroudMetal plate

1-10 (No.49785)
3.3 Monitor unit seciton
3.3.1 Removing the bottom cover
(See Fig.13 to 16)
(1) Remove the three rubbers eattaching the top cover.
(2) Remove the three screws Lattaching the top cover on the
bottom cover.
(3) Remove the four screws Mand screw Nattaching the bot-
tom cover.
(4) Release the bottom cover in the direction arrow.
Fig.13
Fig.14
Fig.15
Fig.16
Top cove
r
Rubber eRubber e
Top cove
r
LL
Bottom cover
M
N
M
Bottom cover
Top cover