JVC InteriArt HV-32P37SUE User manual

SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED No.YA011
2003/11
COLOUR TELEVISION
YA011200311 HV-32P37SUE,
HV-32P37SJE
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-43
BASIC CHASSIS
MM

1-2 (No.YA011)
SPECIFICATION
Design & specifications are subject to change without notice.
Item Content
HV-32P37SUE HV-32P37SJE
Dimensions ( W ×H ×D ) 94.8cm ×56.2cm ×55.0cm
Mass 54.0kg
TV RF System CCIR (B/G, I, D/K, L/L') CCIR (B/G, I, D/K, L)
Colour System PAL / SECAM / NTSC (Only EXT mode)
Stereo System A2 (B/G, D/K), NICAM (B/G, I, D/K, L)
Teletext System FLOF (Fastext)
TOP (German system)
WST(World standard system)
Receiving Frequency VHF
UHF
CATV
47MHz ~ 470MHz
470MHz ~ 862MHz
116MHz ~ 172MHz, 220MHz ~ 469MHz
47MHz ~ 470MHz
470MHz ~ 862MHz
----------
Receiving channels E2-E12, E21-E69, S1-S41,
X, Y, Z, Z+1, Z+2, ITALY (A-H, H+1, H+2),
F2-F10, F21-F69, R1-R12, R21-R69
E2-E12, E21-E69, S1-S41,
X, Y, Z, Z+1, Z+2,
IR A-J, F21-F69
Intermediate Frequency VIF
SIF 38.9MHz (B/G, D/K, I , L), 33.95MHz (L') 33.4MHz (5.5MHz:B/G),
32.9MHz (6.0MHz:I)
32.4MHz (6.5MHz:L, D/K),
40.45MHz (6.5MHz:L')
33.4MHz (5.5MHz:B/G),
32.9MHz (6.0MHz:I)
32.4MHz (6.5MHz:L, D/K),
Colour Sub Carrier
Frequency PAL SECAM
NTSC
4.43MHz
4.40625MHz / 4.25MHz
3.58MHz / 4.43MHz
Power Input AC220V ~ AC240V, 50Hz
Power Consumption 137W(Average), 2W(Standby)
Aerial Input Terminal 75Ωunbalanced, coaxial
Picture Tube Visible size : 85cm (Measured diagonally) H : 67.4cm ×V : 38.4cm
High Voltage 31.0kV (+0.2kV / -0.2kV) (at zero beam current, FULL mode)
Speaker 13cm ×6.5cm, oval type ×2
Audio Power Output 10W + 10W
External
terminal EXT-1 (Input/Output) 21 pin Euro connector (SCART socket) • Video input, Audio L/R inputs and RGB inputs are available.
• TV broadcast outputs (Video and Audio L/R) are available.
EXT-2 (Input/Output) 21 pin Euro connector (SCART socket)
• Video input, S-video (Y/C) input, Audio L/R inputs and RGB inputs areavailable.
• Video and Audio L/R outputs are available.
• T-V LINK functions are available.
EXT-3 (Input) 21 pin Euro connector (SCART socket)
• Video input, S-Video (Y/C) input and Audio L/R inputs are available.
EXT-4 (Input) COMPONENT
VIDEO
AUDIO
RCA pin jack ×3
Y : 1V(p-p), Positive (Negative sync provided), 75Ω
PB/PR : 0.7V(p-p), 75Ω
• Progressive-scanning signals (525p, 625p, 1125i, 1250i) are available.
500mV (rms), High impedance RCA pin jack ×2
EXT-5 (Input) S-VIDEO
VIDEO
AUDIO
Mini-DIN 4 pin ×1
Y : 1V(p-p), Positive (Negative sync provided), 75Ω
C : 0.286V(p-p) (Burst signal), 75Ω
1V(p-p), Positive (Negative sync provided), 75ΩRCA pin jack ×1
500mV(rms), Low impedance, RCA pin jack ×2
Audio output (Variable) 0~1000mV(rms), Low impedance, RCA pin jack ×2
Headphone Stereo mini jack (3.5mm) ×1
Remote Control Unit RM-C1800 (AA / R06 dry cell battery ×2)

(No.YA011)1-3
SECTION 1
PRECAUTION
1.1 SAFETY PRECAUTIONS [EXCEPT FOR UK]
(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. Replacement parts which
have these special safety characteristics are identified in
the parts list of Service manual. Electrical components
having such features are identified by shading on the
schematics 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
Service manual may cause shock, fire, or other hazards.
(4) 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 different in the GND.
The difference 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.
(5) If any repair has been made to the chassis, it is
recommended that the B1 setting should be checked or
adjusted (See B1 POWER SUPPLY check).
(6) 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.
(7) 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 10kΩ
2W resistor to the anode button.
(8) 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.
(9) 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 1000Ωper volt or more
sensitivity in the following manner. Connect a 1500Ω
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)
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
1500 10W
0.15 F AC-TYPE
GOOD EARTH GROUND

1-4 (No.YA011)
1.2 SAFETY PRECAUTIONS [FOR UK]
(1) The design of this product contains special hardware and 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 product 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 product have special safety-related characteristics. These characteristics are often
not evident from visual inspection nor can the protection afforded by them necessary be obtained by using replacement
components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are
identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the
schematics and by ( ) on the Parts List in the 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 Service Manual may cause shock,
fire, or other hazards.
(4) The leads in the products are routed and dressed with ties, clamps, tubing’s, barriers and the like to be separated from live parts,
high temperature parts, moving parts and / or sharp edges for the prevention of electric shock and fire hazard. When service is
required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to
normal, after re-assembling.
WARNING
(1) The equipment has been designed and manufactured to meet international safety standards.
(2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
(3) Repairs must be made in accordance with the relevant safety standards.
(4) It is essential that safety critical components are replaced by approved parts.
(5) If mains voltage selector is provided, check setting for local voltage.

(No.YA011)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 21-pin Euro connector (SCART) : EXT-1/EXT-2/EXT-3
(P-P= Peak to Peak, B-W= Blanking to white peak)
2.2 MAIN DIFFERENCE LIST
Pin No. Signal designation Matching value EXT-1 EXT-2 EXT-3
1 AUDIO R output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINEOUT) Not used
2 AUDIO R input 500mV(rms) (Nominal), High impedance Used (R1) Used (R2) Used (R3)
3 AUDIO L output 500mV(rms) (Nominal), Low impedance Used (TV OUT) Used (LINEOUT) Not used
4 AUDIO GND Used Used Used
5 GND (B) Used Used Used
6 AUDIO L input 500mV(rms) (Nominal), High impedance Used (L1) Used (L2) Used (L3)
7 B input 700mV(B-W), 75ΩUsed Used Not used
8 FUNCTION SW
(SLOW SW) Low : 0V-3V High : 8V-12V, High impedance Used Used Used
9 GND (G) Used Used Used
10 SCL / T-V LINK Not used Used
(SCL2 / TV-LINK) Not used
11 G input 700mV(B-W), 75ΩUsed Used Not used
12 SDA Not used Used (SDA2) Not used
13 GND (R) Used Used Used
14 GND (YS) Used Not used Not used
15 R / C input R : 700mV(B-W), 75Ω
C : 300mV(P-P), 75ΩUsed (R) Used (C2/R) Used (C3)
16 Ys input (FAST SW) Low : 0V-0.4V, High : 1V-3V, 75ΩUsed Used Not used
17 GND (VIDEO output) Used Used Used
18 GND (VIDEO input) Used Used Used
19 VIDEO output 1V(P-P) (Negative sync), 75ΩUsed (TV OUT) Used (LINE OUT) Not used
20 VIDEO / Y input 1V(P-P) (Negative sync), 75ΩUsed Used Used
21 COMMON GND Used Used Used
Item Content
HV-32P37SUE HV-32P37SJE
POWER CORD QMPK160-185JC QMPK-185-JC
TV RF System CCIR (B/G, I, D/K, L/L') CCIR (B/G, I, D/K, L)
Receiving Frequency VHF 47MHz ~ 470MHz ←
UHF 470MHz ~ 862MHz ←
CATV 116MHz ~ 172MHz, 220MHz ~ 469MHz ---
Receiving channels E2-E12, E21-E69, S1-S41,
X, Y, Z, Z+1, Z+2, ITALY (A-H, H+1, H+2),
F2-F10, F21-F69, R1-R12, R21-R69
E2-E12, E21-E69, S1-S41,
X, Y, Z, Z+1, Z+2,
IR A-J, F21-F69
20 18 16 14 12 10 8 6 4 2
21 19 17 15 13 11 9 7 5 3 1
[Pin assignment]

1-6 (No.YA011)
2.3 FEATURES
ADVANTAGES OF D.I.S.T
D.I.S.T. (Digital Image Scaling Technology) realizes a flicker-free, high-resolution picture(1250i/75Hz).
It can accept virtually all currently used video signal formats, reproducing them with high resolution and improved detail that is very
clear to the viewer. The signal path of D.I.S.T. from input to output can be divided into 5 components: (1) Interlace-Progressive
Converter; (2) Formatter; (3) Enhancer LSI; (4) Driver; and (5) Display Device.
Compared with current 100Hz technology, the advantages of D.I.S.T. mean that:
(1) Diagonal lines are smooth and free from jaggies since the number of scanning lines has been increased to 1250i.
(2) There is no field flicker, since the Formatter raises the frame rate to 75Hz.
(3) There is no line flicker, thanks to the I-P conversion to a progressive signal.
(4) Scenes with movement are also smooth, thanks to both I-P conversion and the formatting process.
(5) Vivid, sharp contours and solid presence are made possible by the support of additional technologies such as the Enhancer
LSI "Super DigiPure" while faithful reproduction without blur or smear is ensured by the Wide-Range CRT Driver.
(6) The refined signal displayed on an appropriate device such as a CRT or PDP will provide unprecedented picture quality and
the highest levels of resolution.
(7) Global compatibility can be enjoyed with a maximum 1500i/60Hz display for NTSC DVD or VCR playback on PAL, as well as
other versatile signal sources including PAL, NTSC, DVD or D-VHS.
MULTI SCREEN FUNCTION
POP (Picture-Out-Picture)
Back programs can be seen at once. Three programs are displayed on screen right-hand side besides the program (VHF / UHF
/ CATV)received now.
INDEX
A favorable program can be selected from the 12 previews on the screen.
SPLIT
Different images, such as a program and video, can be simultaneously seen on two screens.
NATURAL FLAT
It became legible from any position by CRT with few reflection and reflect lumps on the flat screen.
Super Digipure
Super Digipure function create a natural-looking picture by eliminating unnecessary edges from high-contrast and crisp images.
And displayes fast-moving pictures more smoothly and naturally on the screen.
COMPONENT VIDEO INPUT TERMINAL
Since the component video input terminal is equipped, it reappears direct without deterriorating the signal from DVD or Video player.
Core of D.I.S.T
12345
Supporting Components
Source signal format
I-P Converter
Enhancer LSI
"Super Digipure"
Fine
Pitch
CRT
Wide Range
CRT Driver
Formatter
PAL 625i
NTSC 525i
NTSC 525p
PAL 625p
Structure of D.I.S.T

(No.YA011)1-7
2.4 FUNCTIONS
FRONT PANEL
REAR PANEL
1 2 3
1
2
3
Remote control sensor
Power lamp
Power button
R
L
S
P
E
X
T
5
EXT- 1
EXT- 4
EXT- 2
S
EXT- 3
S
AUDIO OUT
L
Pr
Pb
R
L
Y
R
SIDE CONTROL JACK
AV TERMINAL BOARD
R
L
S
P
E
X
T
5
4
5
6
7
8
9
10
11
12
13
EXT-1
EXT- 4
EXT-2
S
EXT-3
S
AUDIO OUT
L
Pr
Pb
R
L
Y
R
Aeriel terminal
EXT-4 terminal
AUDIO OUT terminal
EXT-1 terminal
EXT-2 terminal
EXT-3 terminal
8
9
10
11
12
13
7
4
5
6
Headphone jack
P / buttons, -/+ buttons
Volume button
EXT-5 terminal

1-8 (No.YA011)
REMOTE CONTROL UNIT
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
8
0
123
4
7
56
9
AV
ZOOM
MENU
BACK
3D
TV
OK
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
2
3
Muting key
Number key
Information key
Zoom key
3D Sound key
TV key
Function (UP/DOWN, RIGHT/LEFT) keys
Text key
Programme / keys
VCR/DVD/Text control key
Standby key
VCR/TV/DVD Switch
AV key
Colour key
Multi screen key
Freeze/Swap key
MENU key
OK key
BACK key
Volume -/+ keys
VCR / TV / DVD
switch

(No.YA011)1-9
2.5 TECHNICAL INFORMATION
2.5.1 SYSTEM BLOCK DIAGRAM
IC1781[10]
MAIN MEMORY
MAIN PWB
AV SW PWB
AV SW PWB
SCL3 / SDA3
SCL2 / SDA2
SCL1 / SDA1
SCL0 / SDA0
DIST PWB
DEF OSC PWB
IC0161[0H]
DEF CONTROL
IC0212[0H]
DAC1
IC1301[0Z]
RGB PROCESSOR
IC3001[0Z]
MAIN CHROMA
DEMODULATOR
IC1721[10]
IP LATCH
IC1701[10]
MAIN DAC
IC801[0S]
SUB CHROMA
DEMODULATOR
IC802[0S]
SUB DIGITAL
COMB FILTER
MAIN PWB
MAIN PWB
DIST PWB
TU1001[10]
TUNER
IC1251[10]
COMPONENT VIDEO
SW
IC1201[10]
SYNC SEP
IC1101[10]
MULTI SOUND
PROCESSOR
IC101[0S]
AV SW
IC1001[0Z]
DIST PROCESSOR
IC001[0M]
MAIN MICRO COMPUTER

1-10 (No.YA011)
SECTION 3
DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE
3.1.1 REMOVING THE REAR COVER
(1) Unplug the power plug.
(2) Remove 13 screws [A] as shown in the Fig. 3.
(3) Withdraw 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 SIDE CONTROL JACK ASSY
• Remove the REAR COVER.
(1) Remove 1 screw [B] as shown in Fig.3.
(2) Slightly pull the SIDE CONTROL JACK ASSY toward you,
and detach the claw from FRONT CABINET. Then it can be
removed.
(3) Then disconnect the connector [F] and [CN016] as shown
in Fig.1.
3.1.3 REMOVING THE SIDE CONTROL PWB
• Remove the REAR COVER.
• Remove the SIDE CONTROL JACK ASSY.
(1) Remove 3 claws [C] from backside of the SIDE CONTROL
JACK ASSY as shown in Fig.1.
(2) Remove the SIDE CONTROL PWB from the SIDE
CONTROL JACK ASSY.
3.1.4 REMOVING THE AV TERMINAL BOARD
• Remove the REAR COVER.
(1) Remove 7 screws [D] as shown in Fig.3.
(2) Remove 2 claws [E] at the bottom of the AV TERMINAL
BOARD as shown in Fig.2.
(3) Shift the AV TERMINAL BOARD slightly in the direction of
arrow [G], and remove it as shown in Fig.2.
3.1.5 REMOVING THE MAIN CHASSIS
• Remove the REAR COVER.
(1) Slightly raise the MAIN CHASSIS, and release two claws
at the bottom of both sides of the MAIN CHASSIS.
(2) Then withdraw the MAIN CHASSIS backward from the
FRONT CABINET (If necessary, detach the wire clamp,
connectors etc.).
3.1.6 REMOVING THE MAIN SPEAKER
• Remove the REAR COVER.
(1) Remove 2 screws [H], and detach the MAIN SPEAKER
HOLDER as shown in Fig.3 (When removing 2 screws [H]
of the MAIN SPEAKER HOLDER, the lower side screw
first, and then upper one).
(2) Remove 2 screws [J] attached the MAIN SPEAKER.
(3) Follow the same steps when disassemble the other hand
MAIN SPEAKER.
3.1.7 CHECKING THE PW BOARD
(1) Pull out the MAIN CHASSIS (Refer to REMOVING THE
MAIN CHASSIS).
(2) Erect the MAIN CHASSIS vertically so that you can easily
check the PW Board from back side.
3.1.8 CAUTION
(1) When erecting the MAIN CHASSIS, be careful so that
there will be no contacting with other PW Board.
(2) Before turning on power, make sure that the wire connector
is properly connected.
(3) When conducting a check with power supplied, be sure to
confirm that the CRT EARTH WIRE (BRAIDED ASS'Y) is
connected to the CRT SOCKET PW board.
3.1.9 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.
Fig.1
Fig.2
SIDE CONTROL
PWB
(Back view)
C
C
F
CN016
G
E
E
AV TERMINAL
BOARD

(No.YA011)1-11
Fig.3
REAR COVER
FRONT CABINET
MAIN SPEAKER
FRONT
CONTROL
PWB
POWER & DEF. PWB
DEF OSC PWB
EHT PWB
LINE FILTER PWB
MI-COM
PWB
LF BASE
MAIN PWB
DIST PWB
AV SW PWB
CLAW
CLAW
HVT HOLDER
MAIN CHASSIS
CONTROL
BASE
AV TERMINAL
BOARD
A
J
M
Fig.1
B
POWER CORD
H
L
K
MAIN SPEAKER
HOLDER
CRT SOCKET
PWB
D

1-12 (No.YA011)
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. 4).
(2) While keeping the surface of CRT down, mount the TV set
on the CRT change table balanced will as shown in Fig. 4.
(3) Remove 4 screws marked by arrows with a box type screw-
driver as shown in Fig. 5.
NOTE:
Since the cabinet will drop when screws have been re-
moved, 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. 6.
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.
Fig.4
Fig.5
Fig.6
COATING OF SILICON GREASE FOR ELECTRICAL INSULATION ON THE CRT ANODE CAP SECTION.
Subsequent to replacement of the CRT and HV transformer or
repair of the anode cap, etc. by dismounting them, be sure to
coat silicon grease for electrical insulation as shown in
Fig.7.Wipe around the anode button with clean and dry cloth.
(Fig.7)Coat silicon grease on the section around the anode
button. At this time, take care so that any silicon greases dose
not sticks to the anode button. (Fig.8)
Silicon grease product No. KS - 650N
Fig.7 Fig.8
CRT CHANGE TABLE
APPROX.
35cm
CLOTH
CRT
BOX
TYPE
SCREW
DRIVER
CRT
CHANGE
TABLE
CRT
CHANGE TABLE
CRT
CABINET
Anode button
CRT
Silicon grease
coating
Silicon grease
should be coated
by 5mm or more
from the outside
diameter of anode
cap.
Approx.
20mm (Do not
coat grease on
this section
Anode button
(No sticking of
silicon grease)
Anode cap
Coating position
of silicon grease

(No.YA011)1-13
3.3 MEMORY IC REPLACEMENT
3.3.1 MEMORY IC
This TV use the memory IC. In the memory IC, there are memorized data for correctly operating for the video and deflection circuits
and more. When replacing the memory IC, be sure to use IC written with the initial values of data.
3.3.2 PROCEDURE FOR REPLACING MEMORY IC
1. Power off
Turn the power off and unplug the power plug.
2. Replace IC.
Be sure to use the memory IC written with the initial setting
data.
3. Power on
Connect the power plug and turn the power on.
4. Setting of recieve channels
Set the receive channels. For setting, refer to the OPERATING
INSTRUCTIONS.
5. User settings
Check the user setting items according to "FACTORY
SHIPPING" at page later. If these are different, set the correct
value.
6. Check the SYSTEM CONSTANT items
(1) Before operating the SERVICE MENU, confirm that the
setting of VCR/TV/DVD switch of the REMOTE
CONTROL UNIT is at the "TV" side. If this switch have
not been properly set, you cannot enter the SERVICE
MENU.
(2) Press the [INFORMATION] key and [MUTING] key on
the REMOTE CONTROL UNIT simultaneously.
(3) The SERVICE MENU screen on Fig.1 will be displayed.
(4) While the SERVICE MENU is displayed, again press the
[INFORMATION] key and [MUTING] key simultaneously.
Then display the SYSTEM CONSTANAT SET screen as
shown in Fig.2.
(5) Refer to the "SETTING VALUE OF SYSTEM
CONSTANT SET", and check the setting items. when it
differ, adjust it with the [FUNCTION (UP/DOWN)] key
and adjust it with the [FUNCTION (RIGHT/LEFT)] keys.
(6) Press the [MENU] key to memorize the setting value.
(7) Press the [INFORMATION] key twice to return to the
normal screen.
7.SERVICE MENU setting
Verify what to set in the SERVICE MENU, and set whatever is
necessary. Refer to the ADJUSTMENT for setting.
Fig.1
Fig.2
SERVICE MENU
1. IF
3. AUDIO
5. VSM PRESET
7. 3DNR
9. SHIPPING(OFF)
2. V/C
4. DEF
6. STATUS
8. IP
0. BUS FREE
1-9 : SELECT i : EXIT
SYSTEM CONSTANT SET
1. P MUTE NO
- / + : STORE i : EXIT
MENU
INFORMATION
SERVICE MENU
Enter
Exit SERVICE MENU
MUTING
VCR/TV/DVD
SWITCH
MENU
Memorize the
adjustment data
FUNCTION
UP / DOWN
8
123
4
7
56
9
0AV
ZOOM
MENU
BACK
3D
TV
OK
Select the setting item
FUNCTION
RIGHT/LEFT
Adjust the value

1-14 (No.YA011)
3.4 FACTORY SHIPPING SETTING
3.4.1 SETTING VALUE OF SYSTEM CONSTANT SET
3.4.2 SETTING OF REMOTE CONTROL UNIT
3.4.3 SETTING OF MENU SCREEN
3.4.4 SERVICE MENU SETTING ITEMS
Setting item Variable range Setting value
1. P MUTE YES / NO NO
Setting item Setting value Setting item Setting value
POWER ON 3D SOUND OFF
VOLUME 10 ZOOM PANORAMIC
CHANNEL 1 MULTI SCREEN OFF
Setting item Setting value Setting item Setting value
PICTURE SETTING FEATURES
PICTURE MODE BRIGHT SLEEP TIMER OFF
CONTRAST Centre BLUE BACK ON
BRIGHT Centre CHILD LOCK ID:-----, ALL CH OFF
SHARP Centre APPEARANCE TYPE A
COLOUR Centre SETUP
HUE Centre LANGUAGE ENGLISH
COLOR TEMP. COOL PICTURE TILT Centre
DIGITAL VNR AUTO(LOW) EDIT / MANUAL PRESET CH only
Super Digipure AUTO others : Blank
MOVIE THEATER AUTO DECORDER(EXT-2) OFF
Colour Digipure ON EXT SETTING
COLOR SYSTEM Depend on preset channel S-IN EXT-2
4:3 AUTO ASPECT PANORAMIC ID LIST Blank
SOUND SETTING DUBBING EXT-2
BASS Centre
TREBLE Centre
BALANCE Centre
HEADPHONE VOLUME 10
3D CINEMA SOUND ON
SURROUND MID
BASS BOOST MID
Service menu Sub menu item Description
1. IF 1. VCO, 2. ATT
2. V/C 1. CUT_OF_R ~ 15. RY_ANGLE
3. AUDIO 1. ERROR LIMIT ~ 21. CENT TRE It is no required for adjustment. Don't change the value.
4. DEF 1. FREE-RUN ~ 11. V. LIN
5. VSM PRESET 1. CONT ~ 8. WDR B
6. STATUS 1. SOFT ~ 4. IC It is no required for adjustment. Don't change the value.
7. 3DNR 1. YNR LIM ~ 90. HGCON21 It is no required for adjustment. Don't change the value.
8. IP 1. ASL GAIN ~ 70. BVMCORINGON It is no required for adjustment. Don't change the value.
9. SHIPPING Initialize the all data. It is no requirement for adjustment.
0. BUS FREE Stops the all I2C bus communication. It is no requirement for adjustment.

(No.YA011)1-15
3.5 REPLACEMENT OF CHIP COMPONENT
3.5.1 CAUTIONS
(1) Avoid heating for more than 3 seconds.
(2) Do not rub the electrodes and the resist parts of the pattern.
(3) When removing a chip part, melt the solder adequately.
(4) Do not reuse a chip part after removing it.
3.5.2 SOLDERING IRON
(1) Use a high insulation soldering iron with a thin pointed end of it.
(2) A 30w soldering iron is recommended for easily removing parts.
3.5.3 REPLACEMENT STEPS
1. How to remove Chip parts
[Resistors, capacitors, etc.]
(1) As shown in the figure, push the part with tweezers and al-
ternately melt the solder at each end.
(2) Shift with the tweezers and remove the chip part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply extra solder to each lead.
(2) As shown in the figure, push the part with tweezers and al-
ternately melt the solder at each lead. Shift and remove the
chip part.
NOTE :
After removing the part, remove remaining solder from the pat-
tern.
2. How to install Chip parts
[Resistors, capacitors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the sol-
der. Then heat and melt the solder at both ends of the chip
part.
[Transistors, diodes, variable resistors, etc.]
(1) Apply solder to the pattern as indicated in the figure.
(2) Grasp the chip part with tweezers and place it on the sol-
der.
(3) First solder lead Aas indicated in the figure.
(4) Then solder leads Band C.
SOLDER SOLDER
A
B
C
A
B
C

1-16 (No.YA011)
SECTION 4
ADJUSTMENT
4.1 ADJUSTMENT PREPARATION
(1) There are 2 ways of adjusting this TV : One is with the REMOTE CONTROL UNIT and the other is the conventional method
using adjustment parts and components.
(2) The adjustment using the REMOTE CONTROL UNIT is made on the basis of the initial setting values. The setting values which
adjust the screen to the optimum condition can be different from the initial setting values.
(3) Make sure that connection is correctly made AC to AC power source.
(4) Turn on the power of the TV and measuring instruments for warning up for at least 30 minutes before starting adjustments.
(5) If the receive or input signal is not specified, use the most appropriate signal for adjustment.
(6) Never touch the parts (such as variable resistors, transformers and condensers) not shown in the adjustment items of this service
adjustment.
(7) Preparation for adjustment. Unless otherwise specified in the adjustment items, preset the following functions with the REMOTE
CONTROL UNIT.
4.2 MESURING INSTRUMENT AND FIXTURES
(1) DC voltmeter (or digital voltmeter)
(2) HV voltmeter
(3) Oscilloscope
(4) Signal generator (Pattern generator : PAL, SECAM, NTSC)
(5) Remote control unit
4.3 ADJUSTMENT ITEM
B1 POWER SUPPLY check
HIGH VOLTAGE
HORIZONTAL FREQUENCY
FOCUS
IF VCO check
FOCUS ADJUSTMENT
VSM PRESET
VIDEO CIRCUIT
WHITE BALANCE (LOW LIGHT)
WHITE BALANCE (HIGH LIGHT)
SUB BRIGHT
SUB CONTRAST
SUB COLOR
SUB TINT
DEFLECTION CIRCUIT
V SHIFT
V SIZE
H POSITION
H SIZE
SIDE PINC
TRAPEZIUM
CORNER PIN
V LINEARITY
SUB SCREEN
CONTRAST
COLOUR
TINT
Item Preset value Item Preset value
PICTURE MODE STANDARD Super Digipure ON
CONTRAST Centre MOVIE THEATER AUTO
BRIGHT Centre BASS / TREBLE / BALANCE Centre
SHARP Centre 3D CINEMA SOUND OFF
COLOUR Centre ZOOM FULL
HUE Centre SLEEP TIMER OFF
COLOUR TEMP COOL BLUE BACK OFF
DIGITAL VNR AUTO(LOW)
Colour Digipure AUTO

(No.YA011)1-17
4.4 ADJUSTMENT LOCATIONS
PW
POWER SW
F901
FRONT
FRONT CONTROL PWB
AV SW PWB
SIDE CONTROL PWB
W
TO MAIN PWB
TO LINE FILTER PWB
POWER CORD
B
TO SPEAKER
SR SL RT
TO SIDE
CONTROL PWB
TO SIDE CONTROL PWB
TO DEG COIL
TO FRONT CONTROL PWB
F
C
B
CN016
CN016
CN007CN006
CN001
CN002
CN003
CN008
CN009
TO AV SW PWB
TO MAIN PWB
TOP
TOP
MAIN PWB
FRONT
F
J001
J004
J005
J006
J002
J003
CN007CN006
J004
HEAD
PHONE
UP
DOWN
MENU
MI-COM PWB
DIST PWB
TUNER
AV SW PWB
HV
POWER & DEF. PWB
A
P
J
CN010
DEF OSC PWB
CN001
CN002
CN003

1-18 (No.YA011)
TO CRT SOCKET PWB
HV
1: TP-E
2: NC
3: X-RAY1
4: NC
5: TP-91
POWER & DEF. PWB
FRONT
CRT SOCKET PWB
EHT PWB
TOP
TOP
LINE FILTER PWB
TO POWER & DEF. PWB
TO POWER & DEF. PWB
XP
W
TO FRONT CONTROL PWB
FRONT
VM
R3225 Lead
(IC3202 9Pin side)
S1
A
TO POWER & DEF. PWB TO IP PWB
TP-E
TP-47R
AEJ
X
P
J
DEG
CN011
CN010
DEF OSC PWB
EHT PWB
FBT
TO LINE FILTER PWB
TO LINE FILTER PWB
R2533
X-RAY ADJ
EHT ADJ
R2528
TO CRT SOCKET PWB
TO DEG COIL
TO DEF YOKE
CN011
CN001
CN002
CN003
C
BCN016
CN007
CN001
CN002
CN003
CN008
CN009
MAIN PWB
MI-COM PWB
DIST PWB
AV SW PWB
5
1
FOCUS2
FOCUS1
SCREEN
R3224 Lead
(IC3201 9Pin side)
TP-47G

(No.YA011)1-19
4.5 TOOL OF SERVICE MENU OPERATION
Operate the SERVICE MENU with the REMOTE CONTROL UNIT.
4.5.1 SERVICE MENU ITEMS
With the SERVICE MENU, various adjustment can be made, and they are broadly classified in the following items of settings.
4.5.2 BASIC OPERATION IN SERVICE MENU
4.5.2.1 HOW TO ENTER THE SERVICE MENU
Before operating SERVICE MENU, confirm that the setting of
VCR/TV/DVD switch of the REMOTE CONTROL UNIT is at the
"TV" side. If this switch have not been properly set, you cannot
enter the SERVICE MENU.
Press the [INFORMATION] key and [MUTING] key of the
REMOTE CONTROL UNIT simultaneously. Then SERVICE
MENU screen will be displayed as shown figure.
4.5.3 SUB MENU SCREEN SELECTION
Press one of the CHANNEL number key with the remote control
unit, and select the SUB MENU SCREEN from SERVICE MENU.
4.5.4 MEMORIZE THE ADJUSTMENT DATA
When adjustment is completed, press the [MENU] key to
memorize the adjustment value. If not to do it, adjustment data is
not memorized to the memory IC. And if exit the adjustment
mode before memorize the data, the adjustment value which you
change is canceled.
4.5.5 RELEASE OF SERVICE MENU
When adjustment is completed, press the [INFORMATION] key.
Then return to the SERVICE MENU screen.
Again press the [INFORMATION] key, you can return to the
normal screen.
Sub Menu item Description
1.IF This mode adjusts the IF circuit.
2.V/C This mode adjusts the VIDEO circuit
3.AUDIO This mode adjusts the AUDIO circuit. [It is no requirement for adjustment.]
4.DEF This mode adjusts the DEFLECTION circuit.
5.VSM PRESET This mode sets the VSM (Video Status Memory) data.
6.STATUS This mode shows the I2C memory data software version and information.
[It is no requirement for adjustment.]
7.3DNR This mode adjusts the 3D NR (three-Dimension Noise Reduction) circuit.
[It is no requirement for adjustment.]
8.IP This mode adjusts the DIST circuit. [It is no requirement for adjustment.]
9.SHIPPING This mode initialize the data for factory shipment.
Not to select this mode during adjusting. [It is no requirement for adjustment.]
0.BUS FREE This mode stops the all I2C bus communication.
Not to select this mode during adjusting. [It is no requirement for adjustment.]
SERVICE MENU
1. IF
3. AUDIO
5. VSM PRESET
7. 3DNR
9. SHIPPING(OFF)
2. V/C
4. DEF
6. STATUS
8. IP
0. BUS FREE
1-9 : SELECT i : EXIT
INFORMATION
SERVICE MENU
Enter
Exit SERVICE MENU
MUTING
VCR/TV/DVD
SWITCH
MENU
Memorize the
adjustment data
FUNCTION
UP / DOWN
8
123
4
7
56
9
0AV
ZOOM
MENU
BACK
3D
TV
OK
Select the setting item
FUNCTION
RIGHT/LEFT
Adjust the value

1-20 (No.YA011)
4.5.6 DESCRIPTION OF SERVICE MENU SCREEN
Describe the screen when display the sub menu screen. For example, describe about 2. V/C, 4. DEF and 5. VSM PRESET.
4.5.6.1 2. V/C
4.5.6.2 4. DEF
4.5.6.3 5. VSM PRESET
Colour System
PAL
SECAM
N3
N4
: PAL
: SECAM
: NTSC3.58
: NTSC4.43
Zoom mode
FULL : FULL
Display only FULL mode. Adjustment in other
zoom modes are not required.
Input signal
900i
1125i
1350i
602p
: 900i
: 1125i
: 1350i
: 602p
V / C N3
1.CUT_OF_R 130
****************
- / + : STORE i : EXIT
MENU
Setting item Setting value
Colour system
DEF FULL 1125I
1. FREE-RUN 0
- / + : STORE i : EXIT
MENU
( 93)
Setting item
Zoom mode
Setting value
Input signal
VSM mode
BRIGHT
STD
SOFT
COOL
NORMAL
WARM
: BRIGHT
: STANDARD
: SOFT
: COOL
: NORMAL
: WARM
VSM PRESET BRIGHT
1. CONT 16
- / + : STORE i : EXIT
MENU
VSM mode
Setting item Setting value