JVC AV-36D104/AMA, AV-36D104/ARA, AV-36D104/AYA, AV-36D304/AMA, AV-36D304/ARA Service Manual

...
SERVICE MANUAL
COLOR TELEVISION
5211220035
AV-36D104/AYA, AV-36D104/ARA, AV-36D104 AV-36D304
AV-36D104
[RM-C1255G]
AV-36D304
[RM-C1253G]
BASIC CHASSIS
GE3
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-35
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
No.52112
2003/5
SPECIFICATION
Items
Dimensions (W × H × D) 96.2 cm × 77.3 cm × 62.1 cm (37-7/8" × 30-1/2" × 24-1/2") Mass 68.0kg (149.6Ibs) TV RF System CCIR(M) Color System NTSC Sound System BTSC (Multi Channel Sound) TV Receiving Channels
and Frequency
TV / CATV Total Channel 180 Channels Intermediate Frequency Video IF Carrier 45.75 MHz
Color Sub Carrier 3.58 MHz Power Input AC120V , 60Hz Power Consumption 130W Picture Tube Full square Visible size:90cm (36") measured diagonally, (W74.0 cm × H55.9 cm) High Voltage 31kV ±1.3kV (at zero beam current) Speaker 5cm × 12cm (2" × 4-3/4"), Oval type × 2 Audio Power Output 5W + 5W Antenna Terminal (VHF / UHF) 75 unbalanced coaxial, F-type connector INPUT1 (Rear) VIDEO 1V(p-p), negative sync, 75 , RCA pin jack × 1
S-VIDEO Mini DIN 4-pin × 1
AUDIO (L/MONO, R) 500mVrms(-4dBs), high impedance, RCA pin jack × 2
INPUT2 (Rear) VIDEO --------- 1V(p-p), negative sync, 75 , RCA pin
COMPONENT VIDEO Y&Video : 1V(p-p), negative sync, 75 Ω,
AUDIO (L / MONO, R) 500mVrms(-4dBs), high impedance, RCA pin jack × 2
INPUT3 (Front) VIDEO 1V(p-p), negative sync, 75 , RCA pin jack × 1
AUDIO (L / MONO, R) 500mV(rms)(-4dBs), high impedance, RCA pin jack × 2
AUDIO OUTPUT (L / R) 500mV(rms)(-4dBs)low Impedance, (400kHz when modulated 100%) ,
AV COMPULINK lll --------- 3.5mm mini jack × 1 Remote Control Unit RM-C1255G (AA/R6/UM-3 battery × 2) RM-C1253G (AA/R6/UM-3 battery × 2)
Design & specifications are subject to change without notice.
VHF LOW 02ch~06ch : 54MHz~88MHz
VHF HIGH 07ch~13ch : 174MHz~216MHz
UHF 14ch~69ch : 470MHz~806MHz
CATV 54MHz~804MHz
Low Band : 02~06, A-8 by 02~06&01 High Band : 07~13 by 07~13 Mid Band : A~I by 14~22 Super Band : J~W by 23~36 Hyper Band : W+1~W+28 by 37~64 Ultra Band : W+29~W+84 by 65~125 Sub Mid Band : A8, A4~A1 by 01, 96~99
Sound IF Carrier 41.25 MHz (4.5MHz)
Y : 1V(p-p), negative sync, 75 C : 0.286V(p-p), (burst signal), 75
Pb/Pr : 0.7V(p-p), 75 , RCA pin jack × 2
RCA pin jack × 2
AV-36D104 AV-36D304
RCA pin jack × 1
Contents
jack × 1 Y : 1V(p-p), negative sync, 75 Ω,
RCA pin jack × 1
Pb/Pr : 0.7V(p-p), 75 , RCA pin jack × 2
1-2 (No.52112)
SECTION 1
PRECAUTION

1.1 SAFETY PRECAUTIONS

(1) The design of this product contains special hardware, many
circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only.
(2) Alterations of the design or circuitry of the products should not be
made. Any design alterations or additions will void the manufacturer's warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have special
safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacemen t parts which have these special safety characteristics are identified in the part s list of Service manual. Electrical components having such features are
identified by shading on the schema tics and by ( ) on the parts list in Service manual. The use of a substitute replacement
which does not have the same safety characteristics as the recommended replacement part shown in the parts list of Se rvice manual may cause shock, fire, or other hazards.
(4) Use isolation transformer when hot chassis.
The chassis and any sub-chassis contained in some products are connected to one side of the AC power line. An isolation transformer of adequate capacity should be inserted between the product and the AC power supply point while performing any service on some products when the HOT chassis is exposed.
(5) Don't short between the LIVE side ground and ISOLATED
(NEUTRAL) side ground or EARTH side ground when repairing. Some model's power circuit is partly diffe rent in the GND. The differenc e of the GND is shown by the LIVE : ( ) side GND, the ISOLATED (NEUTRAL) : ( ) side GND and EARTH : ( ) side GND. Don't short between the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND and never measure the LIVE side GND and ISOLATED (NEUTRAL) side GND or EARTH side GND at the same time with a measuring apparatus (oscilloscope etc.). If above note will not be kept, a fuse or any parts will be broken.
(6) If any repair has been made to the chassis, it is recommended that
the B1 setting should be checked or adjusted (See ADJUSTMENT OF B1 POWER SUPPLY).
(7) The high voltage applied to the picture tube must conform with that
specified in Service manual. Excessive high voltage can cause an increase in X-Ray emission, arcing and possible component damage, therefore operation under excessive high voltage conditions should be kept to a minimum, or should be prevented. If severe arcing occurs, remove the AC power immediately and determine the cause by visual inspection (incorrect installation, cracked or melted high voltage harness, poor soldering, etc.). To maintain the proper minimum level of soft X-Ray emission, components in the high voltage circuitry including the picture tube must be the exact replacements or alternatives approved by the manufacturer of the complete product.
(8) Do not check high voltage by drawing an arc. Use a high voltage
meter or a high voltage probe with a VTVM. Discharge the picture tube before attempting meter connection, by connecting a clip lead to the ground frame and connecting the other end of the lead through a 10k
(9) When service is required, observe the original lead dress. Extra
precaution should be given to assure correct lead dress in the high voltage circuit area. Where a short circuit has occurred, those components that indicate evidence of overheating should be replaced. Always use the manufacturer's replacement components.
2W resistor to the anode button.
(10) Isolation Check (Safety for Electrical Shock Hazard)
After re-assembling the product, always perform an isolation check on the exposed metal parts of the cabinet (antenna terminals, video/audio input and output terminals, Control knobs, metal cabinet, screw heads, earphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.
a) Dielectric Strength Test
The isolation between the AC primary circuit and all metal parts exposed to the user, particularly any exposed metal part having a return path to the chassis should withstand a voltage of 3000V AC
(r.m.s.) for a period of one second. (. . . . Withstand a voltage of
1100V AC (r.m.s.) to an appliance rated up to 120V, and 3000V AC (r.m.s.) to an appliance rated 200V or more, for a period of one second.) This method of test requires a test equipment not generally found in the service trade.
b) Leakage Current Check
Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check.). Using a "Leakage Current Tester", measure the leakage current from each exposed metal part of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground (water pipe, etc.). Any leakage current must not exceed 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.2mA AC (r.m.s.).
Alternate Check Method
Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check.). Use an AC voltmeter having 1000 per volt or more sensitivity in the following manner. Connect a 1500 10W resistor paralleled by a 0.15µF AC-type capacitor between an exposed metal part and a known good earth ground (water pipe, etc.). Measure the AC voltage across the resistor with the AC voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Any voltage measured must not exceed 0.75V AC (r.m.s.). This corresponds to 0.5mA AC (r.m.s.). However, in tropical area, this must not exceed 0.3V AC (r.m.s.). This corresponds to 0.2mA AC (r.m.s.).
AC VOLTMETER (HAVING 1000 /V, OR MORE SENSITIVITY)
0.15 F AC-TYPE
PLACE THIS PROBE
1500 10W
(11) High voltage hold down circuit check.
GOOD EARTH GROUND
ON EACH EXPOSED METAL PART
After repair of the high voltage hold down circuit, this circuit shall be checked to operate correctly.See item "How to check the high voltage hold down circuit".
This mark shows a fast operating fuse, the letters indicated below show the rating.
A V
POWER CORD REPLACEMENT WARNING.
Connecting the white line side of power cord to "WHT" character side.
PWB
White line side
WHT
PW
(No.52112)1-3
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS

2.1 FEATURES

• Title CLOSED CAPTION broadcast of C1~C4 and T1~T4 formula is receivable.
• The voice multiplex function of the MTS system is built in.
• B y the 3-line digital comb filter, the refreshed image can be seen.
• Expression of a favorite screen can be chosen by the VIDEO STATUS function.
• A program can be enjoyed with a powerful sound by the HYPER SURROUND function.
• Since the V-chip is built in, it can choose, view and listen to a healthy program.
• The RETURN + function is built-in.
• A quick favorite program can be looked for by the HYPER-SCAN function.
• Since the component signal input terminal is equipped, it reappears direct without deteriorating the signal from DVD.
• By the THEATER PRO function, a reality to which it is viewing and listening in the movie theater can be tasted. (AV-36D304 only)
• By the COMPULINK III function, operation interlocked with the DVD deck can be performed from remote control. (AV-36D304 only)

2.2 HOW TO IDENTIFY MODELS

How to recognize from the appearance of the model concerned is written below. Please distinguish from several contents currently printed on the rating label.
MODEL NAME
AV-36D104
or AV-36D304
DISTINGUISH NAME
AYA , ARA or AMA
***********
1-4 (No.52112)

2.3 MAIN DIFFERENCE LIST Item

AV-36D104/AYA AV-36D104/ARA AV-36D104/AMA AV-36D304/AYA AV-36D304/ARA AV-36D304/AMA
THEATER PRO BUTTON NON YES WHITE BLANCE
NON YES
(COLOR TEMP.) GAME BUTTON YES NON BBE SYSTEM NON YES VIDEO-IN
NON (comnon use to Component-Y) YES
(INPUT-2:REAR-TERMINAL) AV COMPULINK lll NON YES REMOTE CONTROL UNIT RM-C1255G RM-C1253G ILLUMINATION
NON YES
(REMOTE CONTROL UNIT) MAIN PWB ASS'Y CRT SOCKET PWB ASS'Y AV SELECT PWB ASS'Y FRONT CABINET ASS'Y TERMINAL BOARD PICTURE TUBE (ITC) DEG COIL
SGE-1506A-M2 SGE-1510A-M2 SGE-1502A-M2 SGE-1508A-M2 SGE-1512A-M2 SGE-1504A-M2 SGE-3504A-M2 SGE-3506A-M2 SGE-3502A-M2 SGE-3504A-M2 SGE-3506A-M2 SGE-3502A-M2
SGE-5501A-M2 LC10642-005A-A LC20899-006A-A
←← ←← ←←
SGE-5502A-M2 LC10642-004F-A LC20899-004A-A
←← ←← ←←
A90AKB50X04/V/ A90AEJ15X01 A90LLD361X15 A90AKB50X04/V/ A90AEJ15X01 A90LLD361X15
QQW0114-001 CELD067-001JA QQW0114-001 QQW0114-001 CELD067-001JA QQW0114-001

2.4 FUNCTIONS FRONT PANEL CONTROLS

INPUT3
VIDEO
L/MONO-AUDIO-R
1
2 3 4 5 7
1
INPUT 3 : VIDEO
2
INPUT 3 : AUDIO L/MONO
3
INPUT 3 : AUDIO R
4
MENU ( ) BUTTON
5
OPERATE ( / ) BUTTON
6
MENU
- CHANNEL + - VOLUME + POWER ON TIMER
OPERATE
8
CHANNEL (-/+) BUTTON
6
7
VOLUME (-/+) BUTTON
8
POWER SW BUTTON
9
ON TIMER / POWER INDICATOR
10
REMOTE CONTROL SENSOR
109
(No.52112)1-5
REAR TERMINAL
4
7
6
3 2 1
AUDIO VIDEO S-VIDEO
R L/MONO
R
AUDIO OUT
OVER
L
COMPONENT
VIDEO-IN
INPUT 1
INPUT 2
VIDEO
AV-36D104
A
INPUT 1 TERMINAL
1
S-VIDEO
2
A B
Y
PB
PR
75
(VHF / UHF)
VIDEO
3
AUDIO-L/MONO
4
AUDIO-R
B
INPUT 2 TERMINAL
6
AUDIO-L/MONO
7
AUDIO-R
8
COMPONENT-Y / VIDEO
9
COMPONENT-P
10
COMPONENT-P
B
R
C
1112 9
8 10
14
C
AUDIO OUTPUT TERMINAL (Fixed)
11
AUDIO-L
12
AUDIO-R
14
ANTENNA TERMINAL
75 (VHF/UHF)
AV-36D304
A
INPUT 1 TERMINAL
1
S-VIDEO
2
VIDEO
4 3 2 1
AUDIO VIDEO S-VIDEO
R L/MONO
OVER
INPUT 1
5
7
6
R
L
AUDIO OUT
AV CONPULINK
12
C
11 13 9
INPUT 2
COMPONENT
8 10
A B
Y
P
B
PR
75
(VHF / UHF)
3
AUDIO-L/MONO
4
AUDIO-R
B
INPUT 2 TERMINAL
5
VIDEO
6
AUDIO-L/MONO
7
AUDIO-R
8
COMPONENT-Y
9
COMPONENT-P
10
COMPONENT-P
B
R
14
C
AUDIO OUTPUT TERMINAL (Fixed)
11
AUDIO-L
12
AUDIO-R
13
COMPULINK TERMINAL
14
ANTENNA TERMINAL
75 (VHF/UHF)
1-6 (No.52112)
REMOTE CONTROL UNIT
1
2
3
4
5
6
7
19
8
9
10
11
12
18
13
14
16
17
15
1
VCR/ DVD KEY
2
TV/ CATV KEY
3
INPUT KEY:
4
DISPLAY KEY
5
SLEEP TIMER KEY:
6
HYPER SURROUND KEY
TV VIDEO1 VIDO2 V2-COMPONENT VIDEO3
0 15 30 165 180
Hyper Surround Can be Changed ON/OFF
7
VIDEO STATUS KEY:
8
MUTING KEY
9
VOLUME (+/-) KEY / VOL. ( / ) KEY
10
MENU KEY:
11
POWER KEY
12
CHANNEL NUMBER KEY
13
GAME KEY
C.C.
14
15
CHANNEL (+/-) KEY / CH. ( / ) KEY
16
EXIT KEY
17
VCR CONTROL KEY
18
RETURN + KEY
19
100+KEY
PICTURE ADJUST SOUND ADJUST
(CLOSED CAPTION)
STANDARD DYNAMIC THEATER GAME
INITIAL SETUP CLOCK/TIMERS
OFF CAPTION TEXT
KEY:
RM-C1255G [AV-36D104]
10
11
RM-C1253G [AV-36D304]
1
1
2
12
3
4
5
6
7
8
9
13
20
19
14
15
16
17
18
VCR/ DVD KEY
2
TV/ CATV KEY
INPUT KEY:
3
DISPLAY KEY
4
5
SLEEP TIMER KEY:
SOUND KEY
6
TV VIDEO1 VIDO2 V2-COMPONENT VIDEO3
0 15 30 165 180
HYPER SORRUND and BBE Can be Changed ON/OFF
7
VIDEO STATUS KEY:
8
THEATER PRO KEY
9
MUTING KEY
10
VOLUME +/- KEY
MENU KEY
11
12
POWER KEY
13
CHANNEL NUMBER KEY
14
LIGHT KEY
15
C.C. (CLOSED CAPTION) KEY:
16
CHANNEL (+/-)KEY / CH. ( / ) KEY
17
EXIT KEY
18
VCR CONTROL KEY
19
RETURN + KEY
20
100+KEY
PICTURE ADJUST SOUND ADJUST
STANDARD DYNAMIC THEATER GAME
/ VOL. ( / ) KEY
INITIAL SETUP CLOCK/TIMERS
OFF CAPTION TEXT
(No.52112)1-7

2.5 SYSTEM BLOCK DIAGRAM

IC702
MEMORY
SCL0 SDA0 SCL0 SDA0 SCL0 SDA0
IC501
MTS

2.6 MAIN MI-COM (CPU) PIN FUNCTION

Pin No.
Pin name Function
LED/ADC8Bit
1
2
ADC8bit
3
ADC8bit/TC1/Int2
uPLDVss
4
Reset
5
Xout
6
Xin
7
TEST
8
uP DVdd
9
AGC_MUTE
10
UP VVss
11
TV HGND
12
FBP in
13
Hout
14
HVcc
15
HAFC 1
16
Vsaw
17
Vout
18
EW out
19
Xray
20
Ys
21
Cb in
22
Y in
23
Cr in
24
TV DVcc
25
V3in/Cin
26
EHTin
27
V2in/Yin
28
I/O I/O
I
AFT control2
AFT control1
I
Key IN
I
GND
-
RESET,RESET:[L]
I
8MHz OSC
O
8MHz OSC
I
GND
-
5V
-
AGC_MUTE,MUTING:[L],NORMALY:[H]
O
GND
-
GND
-
FBP
I
H OUT
O
9V
-
H AFC
-
GND
-
V OUT
O
EW OUT
O
X RAY
I
YS
I
Cb INPUT
I
Y INPUT
I
Cr INPUT
I
3.3V
-
V3 IN
I
EHT IN
I
V2 IN
I
SCL1
SDA1
MAIN MI-COM
IC201
(MICOM/V/C/DEF)
SCL0 SDA0
IC5501
AV SW
Pin No.
REMOCON
IC7701
REMOCON RECEIVER
AFT1
IC101
IF DET
SCL0 SDA0
TU001
TUNER
IC5201
3L Y/C
Pin name Function
GND
29
TV DGND
30
V1in
31
ABCL
Moni OUT
32
Black Det
33
SVMout
34
APL DET
35
Chroma PLL
36
fsc out
37
TV YC Vcc
38
R out
39
40
G out
B out
41
RGB Vcc
42
IK in
43
44
TV AGND
45
uP AGND
uP Avdd
46
47
MAIN-POWER
HAZARD
48
SDA SDAO
49
SDA SDAO
50
PWM7Bit/TC2/Int0
51
PWM14bit
52
Int5/Stop
53
Int4/TC3
54
Int3/RXIN
55
LED2/CSOUT
56
I
V1 IN
I
ABCL IN
O
MONITOR
-
BLACK DETECTION
O
SVM OUT
-
APL FILTER
-
APL FILTER
O
3.58MHz
-
5V
O
R OUT
O
G OUT
O
B OUT
-
9V
I
IK INPUT
-
GND
-
GND
-
5V
O
MAIN POWER:ON:[L],OFF[H]
O
SELFCHECK:HAZARD:[H],NORMALY:[L]
I
SCA0
I/O
SCL0
O
SDA1(EEPROM)
I/O
AGC ADJUST
O
SCL1(EEPROM)
O
LED,ON:[L],OFF:[H]
O
REMOCON INPUT
I
COMPULINK
I
1-8 (No.52112)
SECTION 3
DISASSEMBLY

3.1 DISASSEMBLY PROCEDURE

3.1.1 REMOVING THE REAR COVER
• Unplug the power plug. (1) As shown in Fig.2, take out the 12 screws [A]. (2) Remove the REAR COVER toward you.
NOTE :
When reinstalling the REAR COVER, carefully push it inward after inserting the chassis into the REAR COVER groove.
3.1.2 REMOVING THE CHASSIS BASE
• Remove the REAR COVER. (1) Slightly raise the both sides of the CHASSIS BASE by
hand, and teka out the 2 claws [B] (Fig.1 and Fig.2) under the both sides of the chassis from the chassis rail.
(2) As shown in Fig.1, draw the CHASSIS BASE backward
along the chassis rail [C] (Fig.1) in the arrow direction [D] (Fig.2). (If necessary, detach the wire clamp, connector's etc.)
NOTE :
When conducting a check with power supplied, be sure to confirm that the CRT earth wire is connected to the CRT SOCKET PWB and the MAIN PWB.
3.1.3 REMOVING THE TERMINAL BOARD
• Remove the REAR COVER. (1) As shown in Fig.2, take out the 4 screws [E]. (2) When you pull out the TERMINAL BOARD, it can be
removed.
3.1.6 REMOVING THE SPEAKER
• Remove the REAR COVER.
• Remove the CHASSIS BASE. (1) As shown in Fig.2, take out the 4 screws [H]. (2) Follow the same steps when removing the other hand
SPEAKER.
3.1.7 CHECKING THE MAIN PW BOARD
• To check the backside of the MAIN PWB. (1) Pull out the CHASSIS BASE. (Refer to REMOVING THE
CHASSIS BASE).
(2) Erect the chassis vertically so that you can easily check
from the backside of the MAIN PWB.
CAUTION :
• When erecting the chassis, be careful so that there will be no
contacting with other PWB.
• Before turning on power, make sure that the CRT earth wire
and other connectors are properly connected.
3.1.8 WIRE CLAMPING AND CABLE TYING
(1) Be sure to clamp the wire. (2) Never remove the cable tie used for tying the wires
together. Should it be inadvertently removed, be sure to tie the wires with a new cable tie.
FRONT CABINET
3.1.4 REMOVING THE FRONT CONTROL PW BOARD
• Remove the REAR COVER.
• Remove the CHASSIS BASE. (1) As shown in Fig.2, take out the 3 screws [F] attached the
FRONT CONTROL PWB with the front cabinet.
(2) Then remove the FRONT CONTROL PWB.
3.1.5 REMOVING THE FRONT TERMINAL PW BOARD
• Remove the REAR COVER.
• Remove the CHASSIS BASE. (1) As shown in Fig.2, take out the 2 screws [G]. (2) Then remove the FRONT TERMINAL PWB.
C
CHASSIS BASE
MAIN PWB
B
Fig.1
(No.52112)1-9
FRONT CABINET
SPEAKER
H
FRONT CONTROL PWB
CRT
SPEAKER
H
POWER CORD
CRT SOCKET PWB
FRONT TERMINAL PWB
CLAW
B
MAIN PWB
HTV
G
CHASSIS BASE
F
CLAW
A
B
AV SEL PWB
REAR COVER
D
E
TERMINAL BOARD
NOTE This illustration describes about AV-36D304. Although the AV-36D104 is slightly different from this illustration, it can use for AV-36D104 in the same steps as this illustration.
1-10 (No.52112)
Fig.2

3.2 REMOVING THE CRT

NOTE:
• Replacement of the CRT should be performed by 2 or more
persons.
• After removing the REAR COVER, CHASSIS etc., (1) Putting the CRT change table on soft cloth, the CRT
change table should also be covered with such soft cloth (shown in Fig. 3).
(2) While keeping the surface of CRT down, mount the TV set
on the CRT change table balanced will as shown in Fig. 3.
(3) Remove 4 screws marked by arrows with a box type
screwdriver as shown in Fig. 4.
NOTE:
Since the cabinet will drop when screws have been removed, be sure to support the cabinet with hands.
(4) After 4 screws have been removed, put the cabinet slowly
on cloth (At this time, be carefully so as not to damage the front surface of the cabinet) shown in Fig. 5.
NOTE:
• The CRT should be assembled according to the opposite sequence of its dismounting steps.
• The CRT change table should preferably be smaller that the CRT surface, and its height be about 35cm.
CRT CHANGE TABLE
CLOTH
CRT CHANGE TABLE
Fig.3
CRT
Fig.4
CRT
APPROX. 35cm
BOX TYPE SCREW DRIVER
CABINET
CRT CHANGE T ABLE
Fig.5
(No.52112)1-11
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