JVC TM-A210G/C User manual

SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED No.52119
2003/6
COLOUR VIDEO MONITOR
5211920036TM-A210G/C,
TM-A210G/U,
TM-A210G/E
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33
BASIC CHASSIS
T1B1

1-2 (No.52119)
SPECIFICATION
Item Content
Dimensions (W ×H ×D) 47.6cm ×40.8cm ×49.2cm (18-3/4” ×16-1/8” ×19-3/8”)
Mass 28.1kg (61.8lbs)
Colour System PAL / NTSC 3.58
Environmental Conditions Operation Temperature : 0°C~40°C (32°F~104°F)
Operation Humidity : 20%~80% (non-condensing)
Power Input AC 220V-240V, 50Hz/60Hz [TM-A210G/C, TM-A210G/E]
AC 120V, 60Hz [TM-A210G/U]
Power Consumption 0.9A [TM-A210G/C, TM-A210G/E]
1.3A [TM-A210G/U]
Picture Tube Full-square type 90°deflection in-line gun
Vertical line trio type phosphor stripe pitch 0.63mm / 0.64mm (H/V)
Screen Size Diagonal : 50.8cm (20”) / W ×H : 40.7cm ×30.5cm (16” ×12”)
High Voltage 27.0kV ± 1.3kV
Speaker 8cm round ×1, 8Ω
Audio Power Output 1W (Monaural)
Signal Input / Output VIDEO A 1V(p-p), 75Ω, negative sync, BNC connector ×2
Bridge connection output possible with automatic termination
VIDEO B 1V(p-p), 75Ω, negative sync, BNC connector ×2
Bridge connection output possible with automatic termination
Mini-Din 4-pin connector ×2
Bridge connection output possible with automatic termination
Y:1V(p-p), 75 Ω, negative sync
C:0.286V(p-p) (burst signal), 75 Ω[NTSC] / 0.3V(p-p) (burst signal), 75 Ω[PAL]
AUDIO A 0.5V(rms), high-impedance, RCA pin jack ×2
Bridge connection output posible
AUDIO B 0.5V(rms), high-impedance, RCA pin jack ×2
Bridge connection output posible
REMOTE INPUT RCA pin jack ×1
REMOTE ASPECT RCA pin jack ×1

(No.52119)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 ADJUSTMENT OF B1 POWER SUPPLY).
(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.52119)
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.52119)1-5
1.3 SAFETY PRECAUTIONS [FOR US]
(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 visualinspectionnor can the protectionaffordedby 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 shownby 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 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 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 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 notexceed 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
a0.15µF 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.

1-6 (No.52119)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 FEATURES
• High-resolution full square CRT is adopted. The excelled color reproducibility and the high resolution that are required of a wide
range monitor's use are realized.
• It can respond to both NTSC and PAL signal system. The incoming signal was discriminated and the automatic selection function
that changes the mode automatically is adopted.
• In intelligible adoption of OSD, a menu is chosen or a user's original setup can be performed easily. The buttons which were easy
to use for a whole surface panel, and was put in order can adjust functions, such as CONTRAST, BRIGHT, CHROMA, and PHASE,
easily. Moreover, the selected level is temporarily displayed on a screen.
• The metal cabinet is adopted which cannot be easily influenced of magnetic and strong.
• Two composite videos and one Y/C input are equipped, and bridge connection is possible respectively.
• With the OSD menu, the aspect ratio of a screen can be chosen as either 4:3 or 16:9.
• The remote terminal whose change of the aspect ratio (4:3 or 16:9) is enabled by remote control is equipped.
• The remote terminal whose change of the input (input A or B) is enabled by remote control is equipped.
• The high-quality speaker is built in with the compact of output 1W.

(No.52119)1-7
SECTION 3
DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE
3.1.1 REMOVING THE TOP COVER
(1) Pull out the power cord from AC inlet.
(2) Remove the 10 screws [A] as shown in Fig.1.
(3) Slightly spread the bottom of the TOP COVER.
(4) Shift the TOP COVER rearward and raise it upward to
remove it.
3.1.2 REMOVING THE REAR PANEL
• Remove the TOP COVER.
(1) Remove the 7 screws [B] as shown in Fig.1.
(2) Remove the 1 screw [C] as shown in Fig.1.
(3) Shift the top portion of the REAR PANEL slightly rearward
and raise it upward to remove it.
3.1.3 REMOVING THE TERMINAL BRACKET AND FBT
HOLDER
• Remove the TOP COVER.
• Remove the REAR PANEL.
(1) Remove the 6 screws [D] as shown in Fig.1.
(2) Remove the 1 screw [E] as shown in Fig.1.
(3) Remove the 3 screws [G] as shown in Fig.1.
(4) Remove the screw [F]. This screw attached the earth wires
to TERMINAL BRACKET.
(5) Slightly shift the terminal bracket and FBT HOLDER
rearward and raise them upward to remove.
3.1.4 REMOVING THE CHASSIS BASE
• Remove the TOP COVER.
• Remove the REAR PANEL.
• Remove the FBT HOLDER.
• Remove the TERMINAL BRACKET.
(1) Remove the 2 screws [H], and withdraw the CHASSIS
BASE toward you.
3.1.5 REMOVING THE SPEAKER
• Remove the TOP COVER.
(1) As shown in Fig.2, slightly spread the claws of the speaker
holder, and pull up the SPEAKER to remove it.
3.1.6 CHECKING THE PWB
To check the PWB from back side.
CAUTION:
(1) When erecting the chassis base, be careful so that there
will be no contacting with the other PWB.
(2) Before turning on power, make sure that the CRT earth
wire and the other connectors are properly connected.
3.1.7 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.

1-8 (No.52119)
Fig.1
REMOVE THE SPEAKER
Fig. 2
A
A
A
B
C
G
D
E
F
H
TOP COVER
FRONT PANEL ASS'Y
CRT SOCKET PWB
FRONT CONTROL PWB
AUDIO PWB
SIGNAL PWB
MAIN PWB FBT
FBT HOLDER
REAR PANEL
POWER CORD
TERMINAL BRACKET
SPEAKER HOLDER
SPEAKER
FRONT

(No.52119)1-9
3.2 MEMORY IC REPLACEMENT
3.2.1 MEMORY IC
This monitor uses the memory IC.
In the memory IC, there are memorized data for correctly operating for the video and deflection circuits.
When replacing the memory IC, be sure to use IC written with the initial values of data.
3.2.2 MEMORY IC REPLACEMENT PROCEDURE
1. Power off
Turn the power off and unplug the power cord from cabinet.
2. Replace IC
Be sure to use the memory IC written with the initial setting
data.
3. Power on
Connect the power cord and turn the power on.
4. Check and set MENU items
Press the [MENU] key and check the setting value of the each
item. If the value is different, select the item and set the correct
value.
5. Adjust the front control items
Adjust the CHROMA, PHASE, CONTRAST and BRIGHT.
Not all items can be adjusted as expected if the signal has not
been input correctly in the adjustments.
6. Check and set the SET-UP MENU items
If the value of each item of < SET-UP MENU > set as value
peculiar to this monitor is not correctly, operation of a
microcomputer and the output of image do not become
suitable. Please set up the value of each item correctly,
according to the following description.
(1) Press the [MENU] key and the [CHROMA/PHASE] key
simultaneously.
(2) The < SET-UP MENU > screen will be displayed.
(3) Check the setting value of the each item of the < SET-UP
MENU >. If the value is different, select the item and set
the correct value.
(4) Press the [MENU] key, and return to the normal screen.
7. Confirm the items of SERVICE MENU
Confirm the each item of the SERVICE MENU.
Refer to the corresponding page to operate the SERVICE
MENU.
CHROMA CONTRAST VOLUME / SELECT
PHASE
MENU
BRIGHT
<SET-UP MENU>
Fig.1
< SET-UP MENU >
H. POSITION 00
WHITE BALANCE
CONTROL LOCK OFF
STATUS DISPLAY ON
INPUT REMOTE OFF
ASPECT REMOTE OFF
EXIT
SERVICE MENU
< BLOCK SELECT >
SIGNAL BLOCK
WHITE BALANCE BLOCK
DEFLECTION BLOCK
CONTROL BLOCK
SIG W/B DEF CTRL EXIT
CURSOR
Point out the current adjusting item. Operate with the
[CHROMA/PHASE] key and [CONTRAST/BRIGHT] key.
SETTING ITEM
The items of <SET-UP MENU>.
SETTING VALUE
Adjust each item of SET-UP MENU with the [VOLUME/
SELECT +(UP)] key or [VOLUME/SELECT |(DOWN)] key.
FUNCTION DISPLAY
When you move the cursor to select the item, the key
function display changes the illustration.
OPERATION KEY ASSIGNMENT
In the SERVICE MENU, the original key operation by the
front panel replaced with the displayed function.

1-10 (No.52119)
3.2.3 FACTRY SETTING VALUE
INITIAL SETTING VALUE TABLE [SET-UP MENU]
INITIAL SETTING VALUE TABLE [MENU]
INITIAL SETTING VALUE [FRONT PANEL CONTROLS]
Setting item Setting content / Range Initial setting value
H. POSITION -05 ~ +05 0
WHITE BALANCE CUTOFF (R / G / B) -09 ~ +09 0
DRIVE (R / B) -09 ~ +09 0
CONTROL LOCK ON / OFF OFF
STATUS DISPLAY ON / OFF ON
INPUT REMOTE ON / OFF OFF
ASPECT REMOTE ON / OFF OFF
Setting item Setting content / Range Initial setting value
SHARPNESS 00 ~ +05 03
COLOUR SYSTEM AUTO / NTSC / PAL AUTO
ASPECT RATIO 4-3 / 16-9 4-3
COLOR TEMP. 6500 / 9300 6500
Setting item Setting content / Range Initial setting value
INPUT SELECT A / B A
CHROMA -20 ~+20 00
PHASE -20 ~+20 00
CONTRAST -20 ~+20 00
BRIGHT -20 ~+20 00
VOLUME 00 ~ 50 20

(No.52119)1-11
3.2.4 SERVICE MENU SETTING ITEMS
SIGNAL BLOCK
WHITE BALANCE BLOCK
DEFLECTION BLOCK
In addition to the ones listed above, the following DEFLECTION
BLOCK are also available.
CONTROL BLOCK
Item No. Setting content
S01 BRIGHT
S02 CONTRAST
S03 CHROMA(PAL)
S04 CHROMA(NTSC)
S05 CHROMA(SECAM)
S06 PHASE(NTSC)
S07 BRIGHT(16:9)
S08 CONTRAST(16:9)
S09 CONTRAST(9300)
S10 CHROMA(NTSC 9300)
S11 PHASE(NTSC 9300)
Item No. Setting content
W01 R CUTOFF
W02 G CUTOFF
W03 B CUTOFF
W04 R DRIVE(6500)
W05 B DRIVE(6500)
W06 R DRIVE(9300)
W07 B DRIVE(9300)
Item No. Setting content
D01 HORIZONTAL POSITION
D02 VERTICAL SIZE
D03 VERTICAL SIDE PIN CORRECTION
D04 VERTICAL CENTER
D05 VERTICAL LINEARITY
INPUT SIGNAL
V. FREQ / ASPECT SCREEN DISPLAY
50Hz / 4:3 D01~D05
60Hz / 4:3 DA1~DA5
50Hz / 16:9 DB1~DB5
60Hz / 16:9 DC1~DC5
Item No. Setting content Item No. Setting content
C01 MODEL C30 SECAM. S-FIELD
C02 BIRGHT(UP) C31 SECAM. SDC.ATT
C03 BRIGHT(DOWN) C32 SECAM. DEMP.F0
C04 CONT(UP) C33 SECAM. V.ID.SW
C05 CONT(DOWN) C34 SECAM. S.KILL
C06 CHROMA(UP) C35 SECAM. BELL.F0
C07 CHROMA(DOWN) C36 ABL.GAIN
C08 PHASE(UP) C37 ABL.POINT
C09 PHASE(DOWN) C38 TRAP SW(NT)
C10 OSD H POSITION C40 TRAP SW(PAL)
C11 OSD V POSITION(50Hz) C41 TRAP Q(NT)
C12 OSD V POSITION(60Hz) C42 TRAP Q(PAL)
C13 VIDEO Y DELAY(NT) C43 TRAP F0(NT)
C14 VIDEO Y DELAY(PAL) C44 TRAP F0(PAL)
C15 VIDEO Y DELAY(SEC) C45 TOF SW(NT)
C16 VIDEO Y DELAY(B/W) C45 TOF SW(PAL)
C17 S Y DELAY(NT) C46 TOF Q(NT)
C18 S Y DELAY(PAL) C47 TOF Q(PAL)
C19 S Y DELAY(SEC) C48 TOF F0(NT)
C20 S Y DELAY(B/W) C49 TOF F0(PAL)
C21 SERVICE BRIGHT C50 APA(V.NT)
C22 SHARP CENTER C51 APA(V.PAL)
C23 V-GUARD C52 APA(V.SEC)
C24 HOUR METER C53 APA(Y/C,B/W)
C25 AFC MODE C54 R-Y BLACK OFFSET
C26 BURST POSITION(N/P) C55 B-Y BLACK OFFSET
C27 BURST POSITION(SEC) C56 CONTRAST CONTROL
C28 SECAM SW. C57 COLOR TEMP.SW
C29 REMOCON

1-12 (No.52119)
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

(No.52119)1-13
SECTION 4
ADJUSTMENT
4.1 ADJUSTMENT PREPARATION
(1) There are 2 ways of adjusting this unit: One is with the MENU as On-Screen-Display and the other is the conventional
method using adjustment parts and components.
(2) The adjustment using the On-Screen-Display 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 adjustmentitemsofthis service
adjustment.
(7) Unless otherwise specified in the adjustment items, preset the values that < SET-UP MENU >, MENU and front controls to initial
conditions.
4.2 MEASURING INSTRUMENT AND FIXTURES
(1) DC voltmeter (or digital voltmeter)
(2) Oscilloscope
(3) Colour analyser (Colour temperature meter)
(4) Signal generator (Pattern generator) [PAL/NTSC]
4.3 STANDARD SIGNAL FOR ADJUSTMENT ITEMS
0.525V B-W
0% SETUP
S
TANDARD VIDEO SIGNAL (PAL/NTSC COLOUR BAR)
75% Saturation
BURST
PAL :0.3V
(P-P)
NTSC:0.286V (P-P)

1-14 (No.52119)
4.4 ADJUSTMENT LOCATIONS
A
U
HV
POWER SW
FRONT
MENU +(UP) -(DOWN)
CONTRAST
/BRIGHT CHROMA
/PHASE
VIDEO A
IND
POWER
IND
V CENTER SW
S1
FUSE
DEG
PW
E2
MAIN PWB
FRONT
DEG. COIL
FBT
DEF YOKE
H. SIZE VR
VR1401
S1401
F1901
5:GND
4:X-RAY2
3:X-RAY1
2:NC
1:TP-91(B1)
CN1002
: FOCUS VR
: SCREEN VR
UPPER
LOWER
SW
CN1003
CN1001
A
C INLET
CRT SOCKET
PWB
SIGNAL
PWB
AUDIO
PWB
6:LB
6 1
SW SIGNAL
PWB
VIDEO A
SW
VOLUME
/SELECT
VIDEO B
IND
VIDEO B
SW FRONT CONTROL PWB
B1 ADJ VR
VR1901

(No.52119)1-15
TP-E
TP-47B
E1
T
SPEAKER
SP
(SOLDER SIDE)
T
TP-47G
CN6001
TOP
TOP
TOP
SIGNAL PWB
CRT SOCKET PWB
MAIN PWB
VIDEO A
VIDEO B
AUDIO A
REMOTE
(INPUT
/ASPECT)
SHIELD CASE
MD6201
Y/C IN
Y/C OUT
CN6002
A
FRONT CONTROL PWB
IC6731
AUDIO B
AUDIO PWB
CN8003
IC8602
IC8601
U

1-16 (No.52119)
4.5 BASIC OPERATION OF SERVICE MENU
4.5.1 SERVICE MENU ITEMS
With the SERVICE MENU, various settings can be made, and
they are broadly classified in the following items of adjustments.
It is no requirement for adjustment the portion of the
DEFLECTION BLOCK and CONTROL BLOCK.
4.5.2 HOW TO ENTER THE SERVICE MENU
(1) Press [MENU] button and [VOLUME/SELECT +(UP)]
key simultaneously (Fig.1).
The letter “S” appears at the upper left of the screen (Fig.
2).
(2) While displaying the letter “S”, press [MENU] button and
[CHROMA/PHASE] button simultaneously (Fig.1).
The screen displaies “PLEASE DON’T TOUCH” (Fig. 3).
(3) While displaying the letter above-mentioned, press
[VOLUME/SELECT +(UP)] button or [-(DOWN)] button
to display the SERVICE MENU as shown in Fig. 4.
If above-mentioned steps or state continues for more
than 5 seconds without a further operation, the display
extinguishes and the mode is released.
SIGNAL BLOCK This block adjusts the data of the
various signal circuit controls.
WHITE BALANCE BLOCK This block adjusts the data of the
WHITE BALANCE adjustment.
DEFLECTION BLOCK This block adjusts the data of the
DEFLECTION circuit.
CONTROL BLOCK This block adjusts the whole of the
systems.
CHROMA CONTRAST VOLUME / SELECT
PHASE
MENU
BRIGHT
(1)
(2)
(1)
Fig.1
Fig.2
Fig.3
Fig.4
S
PLEASE, DON'T TOUCH!
< BLOCK SELECT >
SIGNAL BLOCK
WHITE BALANCE BLOCK
DEFLECTION BLOCK
CONTROL BLOCK
BLOCK SELECT ITEM
KEY FUNCTION
DISPLAY
SIG W/B DEF CTRL EXIT

(No.52119)1-17
4.5.3 OPERATION OF < BLOCK SELECT > SCREEN
While the SERVICE MENU < BLOCK SELECT > screen is displaying, in accordance with “FUNCTION DISPLAY” at the lower side
of the screen, be able to operate the various items.
4.5.4 OPERATION EXAMPLE : SIGNAL BLOCK ADJUSTMENT
(1) SELECT THE SIGNAL BLOCK
Press the [CHROMA/PHASE] button to select the signal
block. Then enter to the SIGNAL BLOCK screen.
(2) SELECT THE SERVICE NUMBER
Press the [CHROMA/PHASE] button or [CONTRAST/
BRIGHT] button to select the service number one of <
S01 >~< S11 >.
(3) ADJUSTMENT DATA OPERATION
Press the [VOLUME/SELECT + (UP)] button to change
the setting value in the + direction.
Press the [VOLUME/SELECT - (DOWN)] button to
change the setting value in the - direction.
Adjustmentvalue automatically memorize to the memory
IC when release the buttons.
(4) EXIT SERVICE MENU
When adjustments are completed, press [MENU] button.
Then return to the BLOCK SELECT screen. Again press
[MENU] button then return to the normal screen.
< BLOCK SELECT >
SIGNAL BLOCK
WHITE BALANCE BLOCK
DEFLECTION BLOCK
CONTROL BLOCK
SIG W/B DEF CTRL EXIT
SIG W/B DEF CNTL EXIT
CHROMA CONTRAST VOLUME / SELECT
PHASE
MENU
BRIGHT
SIGNAL BLOCK
WHITE BALANCE BLOCK
DEFLECTION BLOCK
CONTROL BLOCK
EXIT
Press [CHROMA/PHASE] button. Enter to
signal circuit adjustment mode.
Press [CONTRAST/BRIGHT] button.
Enter to WHITE BALANCE adjustment mode.
Press [VOLUME/SELECT -(DOWN)] button.
Enter to DEFLECTION circuite adjustment mode.
Press [VOLUME/SELECT +(UP)] button.
Enter to system whole setting mode.
Press [MENU] button. Return to normal screen mode.
CHROMA CONTRAST VOLUME / SELECT
PHASE
MENU
BRIGHT
EXIT <S01>:
<FUNCTION DISPLAY>
<FRONT PANEL KEY ASSIGNMENT>
SERVICE NUMBER indication
SETTING VALUE indication
SERVICE NUMBER select Data operate (+/ ) EXIT

1-18 (No.52119)
4.5.5 SERVICE MENU FLOW CHART
< BLOCK SELECT >
SIGNAL BLOCK
WHITE BALANCE BLOCK
DEFLECTION BLOCK
CONTROL BLOCK
SIG W/B DEF CTRL EXIT
EXIT
RGB SERV
R CUTOFF :
EXIT
R-B DISP
6500 R DRIVE :
DISP
EXIT
<W01>:
DISP
EXIT <S01>:
EXIT
CUTO 65-D 93-D W01
< ITEM SELECT >
CUTOFF :CUTO
6500 DRIVE :65-D
9300 DRIVE :93-D
EXIT
<D01>:
EXIT
<C01>:
SERVICE MENU
<BLOCK SELECT> SCREEN
SIGNAL BLOCK
CUTOFF ADJUSTMENT
DRIVE ADJUSTMENT
EXIT
R-B DISP
9300 R DRIVE :
DRIVE ADJUSTMENT
W01 ~ W05 ADJUSTMENT
DEFLECTION BLOCK
CONTROL BLOCK
WHITE BALANCE BLOCK
MENU SCREEN

(No.52119)1-19
4.6 INITIAL SETTING VALUE OF SERVICE MENU
[SIGNAL BLOCK]
[WHITE BALANCE BLOCK]
[DEFLECTION BLOCK]
No. Setting item Variable range Initial setting value
S01 BRIGHT 000~255 090
S02 CONTRAST 000~255 160
S03 CHROMA (PAL) 000~255 128
S04 CHROMA (NTSC) 000~255 128
S05 CHROMA (SECAM) 000~255 128
S06 PHASE (NTSC) 000~127 067
S07 BRIGHT (16:9) -128~+127 -008
S08 CONTRAST (16:9) -128~+127 -005
S09 CONTRAST (9300) -128~+127 000
S10 CHROMA (NTSC 9300) -128~+127 000
S11 PHASE (NTSC 9300) -128~+127 000
No. Setting item Variable range Initial setting value
W01 R CUTOFF 000~255 050
W02 G CUTOFF 000~255 050
W03 B CUTOFF 000~255 050
W04 R DRIVE 000~255 150
W05 B DRIVE 000~255 080
W06 R DRIVE (9300) 000~255 130
W07 B DRIVE (9300) 000~255 120
No. Aspect ratio Vertical
frequency Setting item Variable range Initial setting value
D01
4:3 50Hz
HORIZONTAL POSITION 000~031 005
D02 VERTICAL SIZE 000~031 080
D03 SIDE PIN CORRECTION 000~063 040
D04 VERTICAL CENTER 000~255 000
D05 VERTICAL LINEARITY 000~031 013
DA1
4:3 60Hz
HORIZONTAL POSITION 000~031 +003
DA2 VERTICAL SIZE 000~031 +003
DA3 SIDE PIN CORRECTION 000~063 +007
DA4 VERTICAL CENTER 000~255 000
DA5 VERTICAL LINEARITY 000~031 -004
DB1
16:9 50Hz
HORIZONTAL POSITION -128~+127 000
DB2 VERTICAL SIZE -128~+127 -035
DB3 SIDE PIN CORRECTION -128~+127 000
DB4 VERTICAL CENTER -128~+127 000
DB5 VERTICAL LINEARITY -128~+127 000
DC1
16:9 60Hz
HORIZONTAL POSITION -128~+127 000
DC2 VERTICAL SIZE -128~+127 -035
DC3 SIDE PIN CORRECTION -128~+127 -001
DC4 VERTICAL CENTER -128~+127 000
DC5 VERTICAL LINEARITY -128~+127 000

1-20 (No.52119)
[CONTROL BLOCK] (This is a fixed value. Don’t adjust it.)
No. Setting item Variable range Initial setting value
C01 MODEL 000~011 001
C02 BRIGHT POINT UPPER 000~255 063
C03 LOWER 000~255 000
C04 CONTRAST POINT UPPER 000~255 100
C05 LOWER 000~255 045
C06 CHROMA POINT UPPER 000~255 000
C07 LOWER 000~255 015
C08 PHASE POINT UPPER 000~127 050
C09 LOWER 000~127 050
C10 OSD HORIZONTAL POSITION 000~015 013
C11 OSD VERTICAL POSITION (50Hz) 000~007 002
C12 OSD VERTICAL POSITION (60Hz) 000~002 000
C13 VIDEO Y DELAY (NTSC) 000~007 001
C14 VIDEO Y DELAY (PAL) 000~007 001
C15 VIDEO Y DELAY (SECAM) 000~007 004
C16 VIDEO Y DELAY (BLACK AND WHITE) 000~007 001
C17 S Y DELAY (NTSC) 000~007 001
C18 S Y DELAY (PAL) 000~007 001
C19 S Y DELAY (SECAM) 000~007 001
C20 S Y DELAY (BLACK AND WHITE) 000~007 001
C21 SERVICE BRIGHT (VERTICAL) 000~255 085
C22 SHARP (CENTER VALUE) 000~063 011
C23 V-GUARD 000~001 001
C24 HOUR METER 001 001
C25 AFC MODE 000~003 000
C26 BURST POSITION (NTSC / PAL) 000~001 000
C27 BURST POSITION (SECAM) 000~001 000
C28 SECAM SW 000~001 000
C29 REMOCON 000~001 000
C30 SECAM S-FIELD 000~001 001
C31 SECAM SDC ATT 000~001 000
C32 SECAM DEMP F0 000~001 000
C33 SECAM V. ID. SW 000~001 000
C34 SECAM S. KILL 000~001 000
C35 SECAM BELL. F0 000~001 001
C36 ABL. GAIN 000~007 007
C37 ABL. POINT 000~007 004
C38 TRAP SW (NTSC) 000~001 001
C39 TRAP SW (PAL) 000~001 000
C40 TRAP Q (NTSC) 000~003 001
C41 TRAP Q (PAL) 000~003 001
C42 TRAP F0 (NTSC) 000~003 002
C43 TRAP F0 (PAL) 000~003 002
C44 TOF SW (NTSC) 000~001 000
C45 TOF SW (PAL) 000~001 000
C46 TOF Q (NTSC) 000~003 000
C47 TOF Q (PAL) 000~003 000
C48 TOF F0 (NTSC) 000~003 000
C49 TOF F0 (PAL) 000~003 000
C50 APA (V. NTSC) 000~003 001
C51 APA (V. PAL) 000~003 001
C52 APA (V. SECAM) 000~003 000
C53 APA (Y/C, B/W) 000~003 001
C54 R-Y BLACK OFFSET 000~015 008
C55 B-Y BLACK OFFSET 000~015 008
C56 CONTRAST CONTROL 001~003 003
C57 COLOR TEMP SW 000~001 001