JVC AV-32WF47/R User manual

SERVICE MANUAL
COPYRIGHT © 2006 Victor Company of Japan, Limited No.YA388
2006/5
COLOR TELEVISION
YA38820065
AV-32WF47/R,
AV-32WF47/Y,
AV-32WF47/Z
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
BASIC CHASSIS
GJ6

1-2 (No.YA388)
SPECIFICATION
Design & specifications are subject to change without notice.
Items Contents
Dimensions (W ×H ×D) 87.7 cm ×69.9 cm ×56.5 cm
(34-5/8" ×27-5/8" ×22-1/4")
Mass 64.0 kg (140.8 Ibs)
TV RF System (Analog /
Digital)
Analog
Digital
CCIR (M)
ATSC terrestrial / Digital cable
Color System (Analog) NTSC
Stereo System (Analog) BTSC (Multi Channel Sound)
Teletext System (Analog) Closed caption (T1-T4 / CC1-CC4)
TV Receiving Channels
and Frequency (Analog)
VHF Low
VHF High
UHF
CATV
02ch - 06ch : 54MHz - 88MHz
07ch - 13ch : 174MHz - 216MHz
14ch - 69ch : 470MHz - 806MHz
54MHz - 804MHz
Low Band : 02 - 06
High Band : 07 - 13
Mid Band : 14 - 22
Super Band : 23 - 36
Hyper Band : 37 - 64
Ultra Band : 65 - 94, 100 - 135
Sub Mid Band : 01, 96 - 99
TV / CATV Total Channel 191 Channels
Intermediate Frequency
(Analog)
Video IF
Sound IF
45.75 MHz
41.25 MHz (4.5MHz)
Color Sub Carrier Frequency (Analog) 3.58 MHz
Power Input AC120 V, 60 Hz
Power Consumption 160 W
Picture Tube (Visible size) 82.2 cm (32") Measured diagonally
(H: 65.6 cm ×V : 49.6 cm)
High Voltage 31.4 kV ±1.3 kV [at Zero beam current]
Speaker 5 cm ×12 cm (2" ×4-3/4"), Oval type ×2
Audio Power Output 5 W + 5 W
Antenna Terminal (VHF / UHF) F-type connector, 75 Ωunbalanced
Video / Audio input
[Input-1/2/3]
Component Video
[Input-1/2]
S-video
[Input-1]
Video
Audio
RCA pin jack ×6
Y : 1V(p-p), 75 Ω, negative sync
Pb/Pr : 0.7 V(p-p), 75 Ω
Mini DIN 4-pin connector ×1
Y : 1 V(p-p), 75 Ω, negative sync
C : 0.286 V(p-p)(burst signal), 75 Ω
1 V(p-p), 75 Ω, negative sync, RCA pin jack ×2
500 mV(rms)(-4dBs), high impedance, RCA pin jack ×6
Audio Output (Fix) 500 mV(rms)(-4dBs), low Impedance, (400 Hz when modulated 100 %), RCA pin jack ×2
Digital Audio Optical Output Digital SPDIF ×1
Remote Control Unit RM-C1290G (AA/R6/UM-3 battery ×2)

(No.YA388)1-3
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. 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) 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 (NEU-
TRAL) side ground or EARTH side ground when repairing.
Some model's power circuit is partly different in the GND. The differ-
ence of the GND is shown by the LIVE : ( ) side GND, the ISOLAT-
ED (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 B1 POWER
SUPPLY check).
(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 10kΩ2W resistor to the anode button.
(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.
(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 1100V AC
(r.m.s.) for a period of one second.
(. . . . Withstand a voltage of 1100V AC (r.m.s.) to an appliance rat-
ed 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 1500Ω10W 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.).
(11) High voltage hold down circuit check.
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".
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
PWB
White line side
WHT
PW
POWER CORD
REPLACEMENT WARNING.
Connecting the white line side of power
cord to "WHT" character side.
A V
This mark shows a fast
operating fuse, the
letters indicated below
show the rating.

1-4 (No.YA388)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 FEATURES
Built in ATSC (Advanced Television Systems Committee)
TUNER
This TV can receive Digital broadcasting (ATSC), Digital cable
and Analogue broadcasting.
SMART SOUND
Decreases high sound levels, giving a regulated sound level.
FLAT SQUARE CRT
It became legible from any position by CRT with few reflection
and reflect lumps on the flat screen.
DIGITAL COMB FILTER
By the 3D digital comb filter, the refreshed image can be seen.
VIDEO STATUS
Expression of a favorite screen can be chosen by the VIDEO
STATUS function.
COMPONENT INPUT
Since the component signal input terminal is equipped, it
reappears direct without deteriorating the signal from DVD.
V-CHIP
Since the V-CHIP is built in, it can choose, view and listen to a
healthy program.
MTS STEREO
The voice multiplex function of the MTS system is built in.
(MTS = Multi channel Television Sound system)
RETURN PLUS
You program a specific channel to return to while scanning
through the channels using the CH+ and CH - keys.
BBE
High definition audio adds natural, clear and extraordinary
sound quality to any program.
2.2 MAIN DIFFERENCE LIST
2.3 HOW TO IDENTIFY MODELS
Item AV-32WF47/R AV-32WF47/Y AV-32WF47/Z
PICTURE TUBE (ITC) A80ALB20X09 A80AKS90X03 A80ERF182X17L
MAIN PWB SGJ-1314A-M2 SGJ-1303A-M2 SGJ-1304A-M2
CRT SOCKET PWB SGJ-3305A-M2 SGJ-3301A-M2 SGJ-3303A-M2
AV-32WF47
MODEL NAME
RA
YA
ZA
DISTINGUISH NAME
MODEL NO.
AC 120V 60Hz
W
TV SCREEN SIZE : DIAGONAL
INCHES
CHASSIS NO.
MANUFACTURED
SERIAL NO.
VIDEO EQUIPMENT
4C43
ME

(No.YA388)1-5
2.4 TECHNICAL INFORMATION
2.4.1 MAIN MI-COM (CPU) PIN FUNCTION
Pin
No. Pin name I/O Function Pin
No. Pin name I/O Function
1 M_MUTE O Fixed output muting [Muting : H] 29 YC_GND - GND
2 KEY1 I Front key scan voltage (CH+ / VOL+ / VOL-) 30 V1_IN I Not used
3 KEY2 I Front key scan voltage (CH- / MENU/POWER) 31 ABCL I Current for automatic beam (brightness)/contrast limit
4 uP_DVss - GND 32
MONITOR_OUT O Not used
5 Reset I CPU reset [Reset: L] 33 BLACK_DET - Black level detection filter
6 8MHz_OUT O CPU system clock: 8MHz oscillation 34 SVM_OUT O Y signal for scan velocity scan modulation
7 8MHz_IN I CPU system clock: 8MHz oscillation 35 APL_FIL - Average picture level filter
8 TEST - GND 36 APC_FIL - Automatic phase control filter
9 uP_DVDD I 5V 37 fsc_OUT O Not used
10 TU_RESET O Reset for digital tuner module [Reset : H] 38 YC_Vcc I 5V (for video process circuit)
11 uP_VVSS - GND 39 R_OUT O R signal for CRT output
12 TV_HGND - GND 40 G_OUT O G signal for CRT output
13 FBP_SCP I Flyback pulse (H. pulse) 41 B_OUT O B signal for CRT output
14 HOUT O H. drive (oscillation) 42 RGB_Vcc I 9V (for RGB process circuit)
15 H_Vcc I 9V (for H. oscillation start) 43 IK_IN I Not used
16 HAFC_1 - H. AFC filter 44 TV_DGND - GND
17 Vsaw - V. saw filter 45 uP_AGND - GND
18 VOUT O V. drive 46 uP_AVdd - 5V
19 EW_OUT O Parabola waveform (for sidepin correection) 47 MAIN_POWER O Power on/off switching control [Powen on: L]
20 X-RAY I Not used: X-ray detection (for protection) [Detection : H] 48 DTVM_REQ I Read request from DTV micom [Request : H]
21 Ys I Not used 49 SDA1 I/O Data for Inter IC control bus (for DTV micom)
22 Cb_IN I Cb (external) signal 50 SCL1 O Clock for Inter IC control bus (for DTV micom)
23 Y_IN I Y (external) signal 51 SDA0 I/O Data for Inter IC control bus (for main memory)
24 Cr_IN I Cr (external) signal 52 A_MUTING O Audio output muting [Muting : H]
25 TV_DVcc I 3.3V 53 SCL0 O Clock for Inter IC control bus (for main memory)
26 V3IN/CIN I Not used 54 AC_IN I AC 50/60Hz input for timer clock
27 EHT_IN I HV change control 55 REMOCON I Remote control sensor input [No input : H]
28 V2_IN/Y_IN I Not used 56 LED O POWER / ON TIMER LED lndication [lighting : L]

1-6 (No.YA388)
SECTION 3
DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE
CAUTION AT DISASSEMBLY:
• Be sure to perform the SYSTEM SETTEING, at the end of the procedure.
• Make sure that the power cord is disconnected from the outlet.
• Pay special attention not to break or damage the parts.
• When removing each board, remove the connectors as required. Taking notes of the connecting points (connector numbers) makes ser-
vice procedure manageable.
• Make sure that there is no bent or stain on the connectors before inserting, and firmly insert the connectors.
3.1.1 REMOVING THE REAR COVER
(1) Disconnect the power plug.
(2) Remove the 12 screws [A].
(3) Withdraw the REAR COVER backward.
3.1.2 REMOVING THE AV TERMINAL BOARD
• Remove the REAR COVER.
(1) Remove the 5 screws [B].
(2) Withdraw the AV TERMINAL BOARD toward you.
3.1.3 REMOVING THE CHASSIS
• Remove the REAR COVER.
• Remove the AV TERMINAL BOARD.
(1) Slightly raise the both sides of CHASSIS by hand.
(2) Remove the 2 claws under the both side of the CHASSIS
from the front cabinet.
(3) Withdraw the CHASSIS backward.
(If necessary, remove the wire clamp, connectors etc.)
3.1.4 REMOVING THE SPEAKER
• Remove the REAR COVER.
(1) Remove the 2 screws [D].
(2) Remove the SPEAKER with SPEAKER HOLDER.
(3) Remove the 2 screws [E].
(4) Remove the SPEAKER from the SPEAKER HOLDER.
(5) Follow the same steps when removing the other hand
SPEAKER.
NOTE :
When remove the 2 screws [D] of the SPEAKER, remove the
lower side screw first, and then remove the upper one.
3.1.5 REMOVING THE LED & POWER SW PWB
• Remove the REAR COVER.
• Remove the CHASSIS.
(1) Remove the 2 screws [F].
(2) Withdraw the LED & POWER SW PWB toward you.
*If necessary, remove the wire clamp, connector etc.
3.1.6 REMOVING THE FRONT CONTROL PWB
• Remove the REAR COVER.
• Remove the CHASSIS.
(1) Remove the 2 screws [G].
(2) Withdraw the FRONT CONTROL PWB toward you.
*If necessary, remove the wire clamp, connector etc.
3.1.7 REMOVING THE USB PWB
• Remove the REAR COVER.
• Remove the AV TERMINAL BOARD.
(1) Remove the 2 screws [H].
(2) Withdraw the USB PWB toward you.
*If necessary, remove the wire clamp, connector etc.
3.1.8 CHECKING THE CHASSIS
To check the PW Board from back side.
(1) Pull out the CHASSIS (refer to REMOVING THE CHASSIS).
(2) Erect the CHASSIS vertically with the HVT side facing up
so that you can easily check the back side of the PW board.
CAUTION :
• When erecting the CHASSIS, be careful so that there will be
no contacting with other PW Board.
• Before turning on power, make sure that the wire connector
is properly connected.
•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 PWB.
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.

(No.YA388)1-7
Fig.1
REAR
REAR COVER
G
F
FRONT CABINET
B
H
AV SW PWB
ATSC TUNER
MODULE PWB
AV TERMINAL BOARD
AV TERMINAL BOARD
L/F PWB
CHASSIS
MAIN PWB
SPEAKER
CRT SOCKET
PWB
FRONT CONTROL PWB
LED&POWER SW PWB
A
POWER CORD
USB PWB
SPEAKER
HOLDER
SPACER
D
E
Claw

1-8 (No.YA388)
3.1.10 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. 2).
(2) While keeping the surface of CRT down, mount the TV set
on the CRT change table balanced will as shown in Fig. 2.
(3) Remove 4 screws marked by arrows with a box type screw-
driver as shown in Fig. 3.
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. 4.
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.2
Fig.3
Fig.4
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.5.Wipe around the anode button with clean and dry cloth. (Fig.5)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.6)
Silicon grease product No. KS - 650N
Fig.5 Fig.6
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.YA388)1-9
3.2 MEMORY IC REPLACEMENT
• This model uses the memory IC.
• This memory IC stores data for proper operation of the video and drive circuits.
• When replacing, be sure to use an IC containing this (initial value) data.
3.2.1 MEMORY IC TABLE
3.2.2 MEMORY IC REPLACEMENT PROCEDURE
1. Power off
Switch off the power and disconnect the power plug.
2. Replace the memory IC
Be sure to use a memory IC written with the initial setting data.
3. Power on
Connect the power cord to the wall outlet and switch on the
power.
4. Receiving channel setting
Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE)
and set the receive channels (Channels Preset) as described.
5. User settings
Check the user setting items according to the "FACTORY
SETTING ITEM" table.
Where these do not agree, refer to the OPERATING
INSTRUCTIONS (USER'S GUIDE) and set the items as
described.
6. SERVICE MODE setting
Verify what to set in the SERVICE MODE, and set whatever is
necessary(Fig.1) .
Refer to the SERVICE ADJUSTMENT for setting.
3.2.3 SERVICE MODE SETTING ITEMS
Fig.1
Simbol Number of pins Mounting PWB Main content of data
IC702 8-pin MAIN PWB Setting value of Initial setting data is memorized.
Setting items Settings Item No.
1. Digital Service
Audio system setting Adjust A001~A010
2. TV-Micro Service
Video system setting Adjust S001 - S045
Deflection system Adjust D001 - D033
Factory system setting Fixed F001 - F003
Service Menu
Digital Service
TV-Micro Service
Service Menu
1.Digital Service
2.TV-Micro Service
3.Conver Service
4.Diagnostics
Digital Service
1.Adjust
2.Memory Edit
3.Edit Config
4.All Reset
5.Select Channel Map
6.Clear Channel Map
7.Digital Tunig Test
TV-Micro Service
1.Adjust
2.White Balance
3.Memory Edit
Press [1] key
Press [2] key

1-10 (No.YA388)
3.2.4 SETTINGS OF FACTORY SHIPMENT
3.2.4.1 BUTTON OPERATION 3.2.4.2 REMOTE CONTROL DIRECT OPERATION
3.2.4.3 REMOTE CONTROL MENU OPERATION
(1) INITIAL SETUP
(2) TUNER SETUP
(3) SOUND ADJUST
(4) CLOCK / TIMERS
(5) INTERACTIVE PLUG-IN MENU
Refer to the OPERATING INSTRUCTIONS (USER'S GUIDE).
(6) PICTURE ADJUST
Customers can adjust the picture setting of menu screen as their own like but the picture standard value during factory shipment is as below.
Setting item Setting position
POWER Off
CHANNEL CABLE-02
VOLUME 10
Setting item Setting position
INPUT TV
CHANNEL CABLE-02
VOLUME 10
MUTING OFF
DISPLAY OFF
SLEEP TIMER OFF
V. STATUS DYNAMIC
THEAT. PRO OFF
C.C. OFF
MTS STEREO
ASPECT 4 : 3
SOUND BBE ON
Smart Sound OFF
Setting item Setting position
Noise Muting On
Language English
Front Panel Lock Off
V-Chip Off
Set Lock Code 0000
Closed Caption Auto(CC1/T1)
Auto Shut Off Off
Setting item Setting position
Auto Tuner Setup Unnecessary to set
Setting item Setting position
Bass 0
Treble 0
Balance 0
Optical Out PCM
Turn On Volume Current
Volume Limit 50
Setting item Setting position
Set Clock Manual
On / Off Timer Off
Setting item TINT COLOR PICTURE BRIGHT DETAIL COLOR TEMPERATURE VSM
STANDARD 00000LOWON
DINAMIC 0 0 +14 0 +10 HIGH ON
THEATER -3 -3 -10 +1 0 HIGH OFF
GAME 0+7-100+7LOWON

(No.YA388)1-11
3.3 REPLACEMENT OF CHIP COMPONENT
3.3.1 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.
3.3.2 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.
3.3.3 REPLACEMENT STEPS
1. How to remove Chip parts
[Resistors, capacitors, etc.]
(1) As shown in the figure, push the part with tweezers and
alternately 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
alternately melt the solder at each lead. Shift and remove
the chip part.
NOTE :
After removing the part, remove remaining solder from the
pattern.
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
solder. 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
solder.
(3) First solder lead Aas indicated in the figure.
(4) Then solder leads Band C.
SOLDER SOLDER
A
B
C
A
B
C

1-12 (No.YA388)
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
warming 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.
4.2 PRESET SETTING BEFORE ADJUSTMENTS
Unless otherwise specified in the adjustment items, preset the
following functions with the REMOTE CONTROL UNIT.
4.3 MEASURING INSTRUMENT AND FIXTURES
• DC voltmeter (or digital voltmeter)
• DC power supply
• Oscilloscope
• Signal generator (Pattern generator) [NTSC]
• TV audio multiplex signal generator
• Remote control unit
4.4 ADJUSTMENT ITEMS
CHECK ITEM
• B1 VOLTAGE check
• HV POTENTIAL check
• X-RAY PROTECTOR OPERATION-1 check
• X-RAY PROTECTOR OPERATION-2 check
FOCUS
• FOCUS adjustment
DEFLECTION CIRCUIT [2.TV-Micro Service]
• V. SIZE / V. POSITION (4:3) adjustment
• V. SIZE / V. POSITION (16:9) adjustment
• H. POSITION / H. SIZE / SIDE PIN (4:3) adjustment
• H. POSITION / H. SIZE / SIDE PIN (16:9) adjustment
VIDEO CIRCUIT [2.TV-Micro Service]
• WHITE BALANCE(High Light & Low Light) adjustment
• SUB BRIGHT adjustment
• SUB CONTRAST adjustment
• SUB COLOR adjustment
• SUB TINT adjustment
MTS CIRCUIT [1.Digital Service]
• MTS INPUT LEVEL adjustment
• MTS SEPARATION adjustment
Item Preset value
VIDEO STATUS STANDARD
PICTURE adjustment All 00
COLOR TEMPERATURE LOW
VSM OFF
SOUND adjustment All 00
BBE OFF
Smart Sound OFF
ASPECT 4 : 3

(No.YA388)1-13
4.5 ADJUSTMENT LOCATIONS
POWER CORD
SPEAKER
(BRAIDED ASS'Y)
DEF. YOKE
DEG COIL
CRT EARTH
CN600B
UPPER : FOCUS
CN002
CN600B
B
AV SW PWB
ATSC TUNER
MODULE PWB
L/F PWB
S1
HV
E1
HVT
HVT
IC702
LOWER : SCREEN
S421
DOWN UP
IC201
MAIN PWB
DEG
MEMORY IC
TUNER
V CENTER
CENTER
SW
SW
FRONT
TOP
CRT SOCKET PWB (SOLDER SIDE)
LED & POWER SW PWB FRONT CONTROL PWB
FRONT
FRONT
CN600G
CN600R
1 : TP-E
2 : X-RAY2
3 : X-RAY1
4 : NC
5 : TP-91B
CN300E CN300A
1
5
POWER SW
POWER LED
( )
TP-R TP-B
TP-E
M
F
W
G
E
R
A
FRONT
PW
F901
5A
F
W
CN001
CN1005
FRONT
TOP
USB PWB
CN800L

1-14 (No.YA388)
4.6 SERVICE MODE
4.6.1 BASIC OPERATION OF SERVICE MODE
Operate the SERVICE MODE with the REMOTE CONTROL UNIT.
4.6.1.1 HOW TO ENTER THE SERVICE MODE
(1) Set to "0 minutes" using the [SLEEP TIMER] key.
(2) While "0 minutes" is displayed, press the [VIDEO
STATUS] key and [DISPLAY] key simultaneously.
(3) Enter the SERVICE MODE (Fig.1)
Fig.1
4.6.1.2 HOW TO EXIT THE SERVICE MODE
Press the [ MENU ] key to exit the SERVICE MODE.
4.6.1.3 HOW TO STORE OF SETTING VALUE
When adjustment is completed, press the [MUTING] key to
memorize the adjustment value.
NOTE:
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.
4.6.1.4 SERVICE MODE SELECT KEY LOCATION
SERVICE MENU SCREEN
Service Menu
Service Menu
1.Digital Service
1.Digital Service
2.TV-Micro Service
2.TV-Micro Service
3.Conver Service
3.Conver Service
4.Diagnostics
4.Diagnostics
[VOL-] key
[MENU] key
[SLEEP TIMER] key
[DISPLAY] key
[MUTING] key
[VOL+] key
[CH+] key
[NUMBER] key
[POWER] key
[CH-] key
[BACK] key
[VIDEO STATUS] key

(No.YA388)1-15
4.6.2 SERVICE MODE MENU FLOW CHART
BR 114
DRV R060 B059
CUT R060 G065 B033
SERVICE MENU
Service Menu
1.Digital Service
2.TV-Micro Service
3.Conver Service
4.Diagnostics
1.Adjust
1. Digital Service
Digital Service
1.Adjust
2.Memory Edit
3.Edit Config
4.All Reset
5.Select Channel Map
6.Clear Channel Map
7.Digital Tunig Test
1. Adjust
2. White Balance
3. Memory Edit
S001 COLOR 137
NTSC 43-4:3 STANDARD L
A001 IN LAVEL 137
NTSC 43-4:3 STANDARD L
TVM Memory Edit
TVM Memory Edit
Addr (H) 0000
Addr (H) 0000
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
04 01 06 58 FF FF FF FF
04 01 06 58 FF FF FF FF
8 9 A B C D E F
8 9 A B C D E F
11 29 00 00 01 FF FD FD
11 29 00 00 01 FF FD FD
S001 COLOR 137
NTSC 43-4:3 Standard L
2. Memory Edit
3. Edit Config 4. All Reset
5. Select Channel Map 6. Clear Channel Map
7. Digital Tunig Test
2. TV-Micro Service
TV-Micro Service
1.Adjust
2.White Balance
3.Memory Edit
X240 Memory Edit
X240 Memory Edit
Addr (H) 0000
Addr (H) 0000
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
04 01 06 58 FF FF FF FF
04 01 06 58 FF FF FF FF
8 9 A B C D E F
8 9 A B C D E F
11 29 00 00 01 FF FD FD
11 29 00 00 01 FF FD FD
3.Conver Service [Not used]
4.Diagnostics
[Refer to SECTION 5]
D001 V FREQ 137
NTSC 43-4:3 Standard L
F001 137
NTSC 43-4:3 Standard L
A001- A010
DO NOT ADJUST
DO NOT ADJUST
S001- S045
D001 - D033
F001- F003

1-16 (No.YA388)
4.6.3 DESCRIPTION OF STATUS DISPLAY
The status display on the upper part of the SERVICE MODE screen is common (to all models).
4.6.3.1 DIGITAL SERVICE MODE
1. Adjust
(1) SIGNAL SYSTEM
The signal displayed on the screen is displayed.
(2) SCREEN MODE
State of the ASPECT is displayed.
(3) VIDEO STATUS
State of the VIDEO STATUS is displayed.
(4) WHITE BALANCE
State of the WHITE BALANCE is displayed.
(5) SETTING ITEM NAME
Setting item name are displayed. For the setting item names
to be displayed, refer to "INITIAL SETTING VALUE OF
SERVICE MODE".
(6) SETTING ITEM NO.
Setting item numbers are displayed. The setting item numbers
to be displayed are listed below.
SELECTION OF SETTING ITEM
• [CH+] / [CH-] key.
Change the setting items up/ down.
(7) SETTING VALUE (DATA)
The SETTING VALUE is displayed.
CHANGE OF SETTING VALUE (DATA)
• [VOL+] / [VOL-] key.
Change the setting values up/down.
MEMORY OF SETTING VALUE (DATA)
Changed setting value is memorized by pressing
[MUTING] key.
2. Memory Edit
Data in the EEPROM is edited on this screen. [Do not adjust]
CAUTION:
This mode is not used in the ADJUSTMENT. Press the
[BACK] key to return to the SERVICE MENU SCREEN.
NTSC : 525i (Composite / S-video input)
525I : 525i (Component input)
D525I : ATSC 525i
D525P : ATSC 525p
D750P : ATSC 750p
D1125I : ATSC 1125i
43-4:3 : 4 : 3 (Input signal 4 : 3)
43-16:9 : 16 : 9 (Input signal 4 : 3)
16-16:9 : 16 : 9 (Input signal 16 : 9)
16-4:3 : 4 : 3 (Input signal 16 : 9)
16-ZOOM : HD ZOOM (Input signal 16 : 9)
STANDARD : STANDARD
DYNAMIC : DYNAMIC
THEATER : THEATER
GAME : GAME
H : HIGH
L:LOW
SIGNAL SYSTEM SCREEN MODE VIDEO STATUS
SETTING VALUE (DATA) SETTING ITEM No. SETTING ITEM
WHITE BALANCE
A001 IN LEVEL 008
NTSC 43-4:3 STANDARD L
Item No. Setting item
A001 - A010 Audio system setting
A001... ↔A010
MEMORY EDIT MODE
X240 Memory Edit
X240 Memory Edit
Addr (H) 0000
Addr (H) 0000
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
04 01 06 58 FF FF FF FF
04 01 06 58 FF FF FF FF
8 9 A B C D E F
8 9 A B C D E F
11 29 00 00 01 FF FD FD
11 29 00 00 01 FF FD FD

(No.YA388)1-17
3. Edit Config
Setting value in the digital module is edited and confirmed on
this screen. [Do not adjust]
CAUTION:
This mode is not used in the ADJUSTMENT. Press the
[BACK] key to return to the SERVICE MENU SCREEN.
4. All reset
Data in the EEPROM is all reset on this screen. [Do not adjust]
CAUTION:
This mode is not used in the ADJUSTMENT. Press the
[BACK] key to return to the SERVICE MENU SCREEN.
5. Select Channel Map
Channel map is forcibly rewritten on this screen.[Do not adjust]
CAUTION:
This mode is not used in the ADJUSTMENT. Press the
[BACK] key to return to the SERVICE MENU SCREEN.
6. Clear Channel Map
Channel map is cleared on this screen. [Do not adjust]
CAUTION:
This mode is not used in the ADJUSTMENT. Press the
[BACK] key to return to the SERVICE MENU SCREEN.
7. Digital Tuning Test
Digital channel tuning is tested on this screen. [Do not adjust]
CAUTION:
This mode is not used in the ADJUSTMENT. Press the
[BACK] key to return to the SERVICE MENU SCREEN.
EDIT CONFIG MODE
ALL RESET MODE
SELECT CHANNEL MAP MODE
CLEAR CHANNEL MAP MODE
DIGITAL TUNING TEST MODE

1-18 (No.YA388)
4.6.3.2 TV-MICRO SERVICE MODE
1. Adjust
(1) SIGNAL SYSTEM
The signal displayed on the screen is displayed.
(2) SCREEN MODE
State of the ASPECT is displayed.
(3) VIDEO STATUS
State of the VIDEO STATUS is displayed.
(4) WHITE BALANCE
State of the WHITE BALANCE is displayed.
(5) SETTING ITEM NAME
Setting item name are displayed. For the setting item names
to be displayed, refer to "INITIAL SETTING VALUE OF
SERVICE MODE".
(6) SETTING ITEM NO.
Setting item numbers are displayed. The setting item numbers
to be displayed are listed below.
SELECTION OF SETTING ITEM
• [CH+] / [CH-] key.
Change the setting items up/ down.
• [SLEEP TIMER] key.
Switch to the next items.
(7) SETTING VALUE (DATA)
The SETTING VALUE is displayed.
CHANGE OF SETTING VALUE (DATA)
• [VOL+] / [VOL-] key.
Change the setting values up/down.
MEMORY OF SETTING VALUE (DATA)
Changed setting value is memorized by pressing
[MUTING] key.
NTSC : 525i (Composite / S-video input)
525I : 525i (Component input)
D525I : ATSC 525i
D525P : ATSC 525p
D750P : ATSC 750p
D1125I : ATSC 1125i
43-4:3 : 4 : 3 (Input signal 4 : 3)
43-16:9 : 16 : 9 (Input signal 4 : 3)
16-16:9 : 16 : 9 (Input signal 16 : 9)
16-4:3 : 4 : 3 (Input signal 16 : 9)
16-ZOOM : HD ZOOM (Input signal 16 : 9)
STANDARD : STANDARD
DYNAMIC : DYNAMIC
THEATER : THEATER
GAME : GAME
H : HIGH
L:LOW
SIGNAL SYSTEM
SCREEN MODE
VIDEO STATUS
SETTING VALUE (DATA)
SETTING ITEM No.
SETTING ITEM
WHITE BALANCE
S001 BRIGHT 064
NTSC 43-4:3 STANDARD L
Item No. Setting item
S001 - S045 Video system setting
D001 - D033 Deflection system
F001 - F003 Factory system setting
S001... ↔D001... ↔F001...↔S001...
S001 →D001 →F001 →S001

(No.YA388)1-19
2. White Balance
White balance data is adjusted on this screen.
MEMORY OF SETTING VALUE (DATA)
Changed setting value is memorized by pressing [MUTING]
key.
3. Memory Edit
Data in the EEPROM is edited on this screen. [Do not adjust]
CAUTION:
This mode is not used in the ADJUSTMENT. Press the
[BACK] key to return to the SERVICE MENU SCREEN.
BRIGHTNESS
[VOL+] key : BRIGHT is up
[VOL-] key : BRIGHT is down
DRIVE
[2] key : DRIVE R is up
[5] key : DRIVE R is down
[3] key : DRIVE B is up
[6] key : DRIVE B is down
CUTOFF
[1] key : HORIZONTAL LINE on
[4] key : HORIZONTAL LINE off
[7] key : CUTOFF G is up
[TUNE] key : CUTOFF G is down
[8] key : CUTOFF R is up
[0] key : CUTOFF R is down
[9] key : CUTOFF B is up
[RETURN+] key : CUTOFF B is down
BRIGHTNESS
DRIVE
CUTOFF
SETTING VALUE (DATA)
BR 70
DRV R060 B059
CUT R060 G065 B030
TVM Memory Edit
TVM Memory Edit
Addr (H) 0000
Addr (H) 0000
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
04 01 06 58 FF FF FF FF
04 01 06 58 FF FF FF FF
8 9 A B C D E F
8 9 A B C D E F
11 29 00 00 01 FF FD FD
11 29 00 00 01 FF FD FD
MEMORY EDIT MODE

1-20 (No.YA388)
4.7 INITIAL SETTING VALUE OF SERVICE MODE
(1) Adjustment of the SERVICE MODE is made on the basis of the initial setting values ; however, the new setting values which set
the screen in its optimum condition may differ from the initial setting.
(2) Do not change the initial setting values of the setting items NOT LISTED IN ADJUSTMENT PROCEDURE.
(3) --- : This mark described in each table shows "Cannot adjust it."
4.7.1 [1. Digital Service]
4.7.1.1 SOUND SETTING
4.7.2 [2. TV-Micro Service]
4.7.2.1 VIDEO SETTING
No. Setting item
Variable range Initial setting value
A001 IN LEVEL 0 - 15 6
A002 LOW SEP 0 - 63 30
A003 HIGH SEP 0 - 63 30
A004 BASS OFS -128 - 127 0
A005 TREB OFS -128 - 127 0
A006 AHS MVE -128 - 127 -4
A007 AHS MSC -128 - 127 -2
A008 AGC FLAT 0 - 3 1
A009 BBE BASS -128 - 127 -1
A010 BBE TREB -128 - 127 1
No. Setting item
Variable range Initial setting value
No. Setting item Variable
range
Initial setting value
RF
STANDARD THEATER
4 : 3 16 : 9 4 : 3
S001 BRIGHT 000 - 127 064 --- ---
S002 PICTURE 000 - 127 047 --- ---
S003 COLOR 000 - 127 050 --- ---
S004 TINT 000 - 127 063 --- ---
S005 DETAIL 000 - 063 045 --- ---
S006 BRIGHT+- -128 - +127 --- ±000 ±000
S007 PICT+- -128 - +127 --- -008 ±000
S008 COLOR+- -128 - +127 --- ±000 ±000
S009 TINT+- -128 - +127 --- ±000 ±000
S010 DETAIL+- -128 - +127 --- --- ±000
No. Setting item Variable
range
Initial setting value
EXTERNAL (S / COMPOSITE) EXTERNAL (COMPONENT) ATSC
STANDARD
4 : 3
S003 COLOR 000 - 127 --- 043 ---
S004 TINT 000 - 127 --- 068 ---
S005 DETAIL 000 - 063 045 040 040
S006 BRIGHT+- -128 - +127 ±000 ±000 +006
S007 PICT+- -128 - +127 ±000 ±000 ±000
S008 COLOR+- -128 - +127 -004 --- -007
S009 TINT+- -128 - +127 +003 --- +014
No. Setting item Variable
range
Initial setting value
RF / EXTERNAL (S / COMPOSITE) EXTERNAL (COMPONENT) / ATSC
STANDARD THEATER STANDARD THEATER
LOW HIGH LOW HIGH LOW HIGH LOW HIGH
S011 R CUT OFF 000 - 255 030 --- --- --- --- --- --- ---