Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
1. Unplug the plug from the AC outlet.
2. Remove the antenna terminal on TV and turn
on the TV.
3. Insulation resistance between the cord plug
terminals and the eternal exposure metal
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1].
4. If the insulation resistance is less than 1M
ohm, the inspection repair should be required.
[Note 1]
If you have not the 500V insulation resistance
meter, use a Tester.
Read the following NOTED items before starting
work.
* After turning the power off there might still be
a potential voltage that is very dangerous.
When removing the Anode Cap, make sure to
discharge the Anode Cap’s potential voltage.
* Do not use pliers to loosen or tighten the
Anode Cap terminal, this may cause the
spring to be damaged.
REMOVAL
1. Follow the steps as follows to discharge the
Anode Cap. (Refer to Fig. 1-1.) Connect one
end of an Alligator Clip to the metal part of a
flat-blade screwdriver and the other end to
ground. While holding the plastic part of the
insulated screwdriver, touch the support of the
Anode with the tip of the screwdriver.
A cracking noise will be heard as the voltage
is discharged.
2. Flip up the sides of the Rubber Cap in the
direction of the arrow and remove one side of
the support. (Refer to Fig. 1-2.)
3. After one side is removed, pull in the opposite
direction to remove the other.
NOTE
Take care not to damage the Rubber Cap.
INSTALLATION
1. Clean the spot where the cap was located
with a small amount of alcohol. (Refer to Fig.
1-3.)
NOTE
Confirm that there is no dirt, dust, etc. at the
spot where the cap was located.
2. Arrange the wire of the Anode Cap and make
sure the wire is not twisted.
3.Turn over the Rubber Cap. (Refer to Fig. 1-4.)
4. Insert one end of the Anode Support into the
anode button, then the other as shown in Fig.
1-5.
5. Confirm that the Support is securely connected.
6. Put on the Rubber Cap without moving any
parts.
Service Mode List
This unit provided with the following SERVICE
MODES so you can repair, examine and adjust
easily.
To enter the Service Mode, press both set key
and remote control key for more than 2 seconds.
CONFIRMATION OF USING HOURS
POWER ON total hours can be checked on the
screen. Total hours are displayed in 16 system
of notation.
1. Set the VOLUME to minimum.
2. Press both VOL. DOWN button on the set and
Channel button (6) on the remote control for
more than 2 seconds.
3. After the confirmation of using hours, turn off
the power.
NOTE FOR THE REPLACING OF MEMORY IC
If a service repair is undertaken where it has
been required to change the MEMORY IC, the
following steps should be taken to
ensure correct data settings while making
reference to TABLE 1.
Table 1 (2107 NS Only)
NOTE: No need for the setting after INI 10.
Table 1 (2107 R Only)
NOTE: No need for the setting after INI 16
Table 1 (2107 T Only)
NOTE: No need for the setting after INI 10
1. Enter DATA SET mode by setting VOLUME to
minimum.
2. Press both VOL. DOWN button on the set
and Channel button (6) on the remote control
for more than 2 seconds.
3. ADDRESS and DATA should appear as Fig 1.
4. ADDRESS is now selected and should
“blink”. Using the SET + or - keys on the
remote, step through the ADDRESS until
required ADDRESS to be changed is
reached.
5. Press ENTER to select DATA. When DATA is
selected, it will “blink”.
6. Again, step through the DATA using SET + or
- until required DATA value has been selected.
7. Pressing ENTER will take you back to
ADDRESS for further selection if necessary.
8. Repeat steps 4 to 7 until all data has been
checked.
9. When satisfied correct DATA has been
entered, turn POWER off (return to STANDBY
MODE) to finish DATA input.
The unit will now have the correct DATA for the
new MEMORY IC.
Electrical Adjustments
1. BEFORE MAKING ELECTRICAL ADJUSTMENTS
Read and perform these adjustments when
repairing the circuits or replacing electrical parts
or PCB assemblies.
CAUTION
1-1:Prepare the following measurement tools
for electrical adjustments.
1. Synchro Scope
2. Digital Voltmeter
3. Color Bar Generator
2. BASIC ADJUSTMENTS
On-Screen Display Adjustment
In the condition of NO indication on the screen.
Press both VOL. DOWN button on the set and
the Channel button (9) on the remote control for
more than 2 seconds to appear the adjustment
mode on the screen as shown in Fig. 2-1.
NOTE
Use the Channel buttons (1-8) on the remote
control to select the options shown in Fig. 2-1.
Press the Channel button (0) on the remote
control to end the adjustments.
• Use an isolation transformer when performing
any service on this chassis.
• Before removing the anode cap, discharge
electricity because it contains high voltage.
• When removing a PCB or related component,
after unfastening or changing a wire, be sure
to put the wire back in its original position.
Inferior silicon grease can damage IC’s and
transistors.
• When replacing IC’s and transistors, use only
specified silicon grease (YG6260M). Remove
all old silicon before applying new silicon.
2-1: RF AGC DELAY
1. Receive an 80dB monoscope pattern.
2. Connect the digital voltmeter between the pin
5 of CP101 and the pin 1 (GND) of CP101.
3. Activate the adjustment mode display of Fig.
2-1 and press the channel button (5) on the
remote control.
4. Press the channel button (2) on the remote
control. The Fig. 2-2 appears on the display.
5. Press the VOL. UP/DOWN button on the
remote control until the digital voltmeter is
2.20 ± 0.05V.
MATSUI 2107 NS
Electrical Adjustments
Cont’d
2-2: VCO
1. Receive the color bar pattern.
2. Connect the digital voltmeter to pin 47 of
IC201.
3. Adjust the L204 until the digital voltmeter is
3.5 ± 0.05V.
2-3: CUT OFF
1. Place the set with Aging Test for more than 15
minutes.
2. Set condition is AV MODE without signal.
3. Using the remote control, set the brightness
and contrast to normal position.
4. Activate the adjustment mode display of Fig.
2-1 and press the channel button (5) on the
remote control. The Fig. 2-2 appears on the
display.
5. Press the channel button (6) on the remote
control.
6. Adjust the Screen Volume until a dim raster is
obtained.
2-4: FOCUS
1. Using the remote control, set the brightness
and contrast to normal position.
2. Receive the monoscope pattern.
3. Turn the Focus Volume fully counterclockwise
once.
4. Adjust the Focus Volume until picture is
distinct.
2-5: WHITE BALANCE
NOTE:
Adjust after performing adjustments in section 2-3.
1. Receive the color bar pattern.
2. Activate the adjustment mode display of Fig.
2-1 and press the channel button (2) on the
remote control. The Fig. 2-3 appears on the
display.
3. Adjust the adjustment mode display of Fig. 23 until the white color is obtained.
2-6: BRIGHTNESS (TV)
1. Receive the monoscope pattern. (RF Input)
2. Using the remote control, set the brightness
and contrast to normal position.
3. Activate the adjustment mode display of Fig.
2-1 and press the channel button (4) on the
remote control. The Fig. 2-4 appears on the
display.
4. Press the channel button (1) on the remote
control.
5. Press the VOL. UP/DOWN button on the
remote control until the white 0% is starting to
be visible.
2-7: BRIGHTNESS (AV)
1. Receive the monoscope pattern. (Audio Video
Input)
2. Using the remote control, set the brightness
and contrast to normal position.
3. Activate the adjustment mode display of Fig.
2-1 and press the channel button (4) on the
remote control. The Fig. 2-4 appears on the
display.
4. Press the channel button (1) on the remote
control.
5. Press the VOL. UP/DOWN button on the
remote control until the white 0% is starting to
be visible.
2-8: COLOR (TV)
1. Receive the monoscope pattern. (RF Input)
2. Connect the synchro scope to TP802.
3. Using the remote control, set the brightness,
contrast, color and tint to normal position.
4. Activate the adjustment mode display of Fig.
2-1 and press the channel button (4) on the
remote control. The Fig. 2-4 appears on the
display.
5. Press the channel button (3) on the remote
control.
6. Adjust the VOLTS RANGE VARIABLE knob of
the oscilloscope until the range between white
100% and 0% is set to 5 scales on the screen
of the oscilloscope.
7. Press the VOL. UP/DOWN button on the
remote control until the red color level is
adjusted to 80% of the white level. (Refer to
Fig. 2-5)
2-9: COLOR (AV)
1. Receive the monoscope pattern. (Audio Video
Input)
2. Connect the synchro scope to TP802.
3. Using the remote control, set the brightness,
contrast, color and tint to normal position.
4. Activate the adjustment mode display of Fig.
2-1 and press the channel button (4) on the
remote control. The Fig. 2-4 appears on the
display.
5. Press the channel button (3) on the remote
control.
6. Adjust the VOLTS RANGE VARIABLE knob of
the oscilloscope until the range between white
100% and 0% is set to 5 scales on the screen
of the oscilloscope.
7. Press the VOL. UP/DOWN button on the
remote control until the red color level is
adjusted to 80% of the white level. (Refer to
Fig. 2-5)
2-10: CONTRAST
1. Receive the monoscope pattern.
2. Activate the adjustment mode display of Fig.
2-1 and press the channel button (4) on the
remote control. The Fig. 2-4 appears on the
display.
3. Press the channel button (2) on the remote
control.
4. Press the VOL. UP/DOWN button on the
remote control until the bar step is set to the
“20”.
2-11: SHARPNESS
1. Receive the monoscope pattern.
2. Activate the adjustment mode display of Fig.
2-1 and press the channel button (4) on the
remote control. The Fig. 2-4 appears on the
display.
3. Press the channel button (5) on the remote
control.
4. Press the VOL. UP/DOWN button on the
remote control until the bar step is set to the “7”.
2-12: HORIZONTAL PHASE
1. Receive the monoscope pattern.
2. Using the remote control, set the brightness
and contrast to normal position.
3. Activate the adjustment mode display of Fig.
2-1 and press the channel button (1) on the
remote control. The Fig. 2-6 appears on the
display.
4. Press the channel button (1) on the remote
control.
5. Press the VOL. UP/DOWN button on the
remote control until the SHIFT quantity of the
OVER SCAN on right and left becomes
minimum.
2-13: VERTICAL POSITION
1. Receive the monoscope pattern.
2. Using the remote control, set the brightness
and contrast to normal position.
3. Activate the adjustment mode display of Fig.
2-1 and press the channel button (1) on the
remote control. The Fig. 2-6 appears on the
display.
4. Press the channel button (4) on the remote
control.
5. Press the VOL. UP/DOWN button on the
remote control until the horizontal line of the
monoscope comes to approximate center of
the CRT.
2-14: VERTICAL SIZE
1. Receive the crosshatch pattern.
2. Using the remote control, set the brightness
and contrast to normal position.
3. Activate the adjustment mode display of Fig.
2-1 and press the channel button (1) on the
remote control. The Fig. 2-6 appears on the
display.
4. Press the channel button (3) on the remote
control.
5. Press the VOL. UP/DOWN button on the
remote control until the center of crosshatch
is square.
2-15: VERTICAL LINEARITY 50
1. Receive the monoscope pattern.
2. Using the remote control, set the brightness
and contrast to normal position.
3. Activate the adjustment mode display of Fig.
2-1 and press the channel button (1) on the
remote control. The Fig. 2-6 appears on the
display.
4. Press the channel button (5) on the remote
control.
5. Press the VOL. UP/DOWN button on the
remote control until the bar step is set to the
“18”.
2-16: VERTICAL LINEARITY 60
1. Receive the monoscope pattern (NTSC
Signal).
2. Using the remote control, set the brightness
and contrast to normal position.
3. Activate the adjustment mode display of Fig.
2-1 and press the channel button (1) on the
remote control. The Fig. 2-6 appears on the
display.
4. Press the channel button (5) on the remote
control.
5. Press the VOL. UP/DOWN button on the
remote control until the bar step is set to the
“18”.
2-17: OSD HORIZONTAL
1. Using the remote control, set the brightness
and contrast to normal position.
2. Activate the adjustment mode display of Fig.
2-1 and press the channel button (5) on the
remote control. The Fig. 2-2 appears on the
display.
3. Press the channel button (5) on the remote
control.
4. Press the VOL. UP/DOWN button on the
remote control until the difference of A and B
becomes minimum.
PURITY AND CONVERGENCE ADJUSTMENTS
NOTE
1. Turn the unit on and let it warm up for at least
30 minutes before performing the following
adjustments.
2. Place the CRT surface facing east or west to
reduce the terrestrial magnetism.
3. Turn ON the unit and demagnetize with a
Degauss Coil.
3-1: STATIC CONVERGENCE (ROUGH
ADJUSTMENT)
1. Tighten the screw for the magnet. Refer to the
adjusted CRT for the position. (Refer to Fig.
3-1) If the deflection yoke and magnet are in
one body, untighten the screw for the body.
2. Receive the green raster pattern from the
color bar generator.
3. Slide the deflection yoke until it touches the
funnel side of the CRT.
4. Adjust center of screen to green, with red and
blue on the sides, using the pair of purity
magnets.
5. Switch the color bar generator from the green
raster pattern to the crosshatch pattern.
6. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by
adjusting the pair of 4 pole magnets.
7. Combine red/blue (magenta) and green by
adjusting the pair of 6 pole magnets.
8. Adjust the crosshatch pattern to change to
white by repeating steps 6 and 7.
3-2: PURITY
NOTE
Adjust after performing adjustments in section 3-1.
1. Receive the green raster pattern from color
bar generator.
2. Adjust the pair of purity magnets to center the
color on the screen. Adjust the pair of purity
magnets so the color at the ends are equally
wide.
3. Move the deflection yoke backward (to neck
side) slowly, and stop it at the position when
the whole screen is green.
4. Confirm red and blue colors.
5. Adjust the slant of the deflection yoke while
watching the screen, then tighten the fixing
screw.
3-3: STATIC CONVERGENCE
NOTE
Adjust after performing adjustments in section 3-2.
1. Receive the crosshatch pattern from the color
bar generator.
2. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by
adjusting the pair of 4 pole magnets.
3. Combine red/blue (magenta) and green by
adjusting the pair of 6 pole magnets.
3-4: DYNAMIC CONVERGENCE
NOTE
Adjust after performing adjustments in section 3-3.
Component Location Guide
1. Adjust the differences around the screen by
moving the deflection yoke upward/downward
and right/left. (Refer to Fig. 3-2-a)
2. Insert three wedges between the deflection
yoke and CRT funnel to fix the deflection
yoke. (Refer to Fig. 3-2-b)
ABCD E F GH
MICON/TUNER SCHEMATIC DIAGRAM
8
OS101_1
R143
12C OFF
OSD G
W869
C118 39P CH
R121 3.3K
W870
SDA
OSD B
4.44.44.44.40.00.00.8 3.8 0.3
C119
4.7K
R123 3.3K
R122 3.3K
SOUND A
REMORT
P_FAIL
OSC OUT
OSC IN
4.9
100P CH
GP1U281Q
B+
Vout
123
R125 22K
2
1
34353637383944041424344
SD
RESET
XOUT
XIN
TEST
1K
R120
C120100P CH
GND
30 31 32 33
23 24 25 26 27 28 29
TU001NJH3023M218
IF
BTL
BPL
V.S
SDA
SCL
ADRES
AGC
2
3
4
5
6
8
9
31.2
R001
0.022 M
R002
V.OUT
0.0
68K 1/2W
R134
NC
68K 1/2W
L001
4.8
10K
7
0.0
10uH 0607
C002
D105
1S2472
NC
3.2
3.2
270
R003
10006.3VYK
270
R004
11
10
1415
NC
0.1
0.0
R148
0.0
C103
R126
R136 22K
5.0
5.0
5.0
4.2
5.0
3
3.8
4.4
W818
0.0
5.0
L101
4.9
5.2
33uH
47
R137 22K
C107
C108 0.1 B
X101
3
8 MHZ
2
1
C104
12P CH
C105 12P CH
ATS AGC
Q104
2SC2412K
R149
0.01 B
R150
4
10K
68K
3.9K
1050V KS
5.0
C122
B101
2.6
BLM21A601SPT
0.15.5VF
TP001
C008
0.1 B
IC103 PST600H
10K
R133
VCC
123
4.9
1SS133
150V KS
C111
5
0.0
D103
D001
HZ30-3L TD
C001
D104
1S2472
RESET
GND
5.0
1
1213
NC
NC
2.6
0.0
3.9
C003
C007
0.01 B
150V KS
003P-2100
C006
100P CH
PH003
FROM DEFLECTION/CRT
FBT_5V
VD
FROM/TO POWER
POWER
AT+5.6V
TO IF/CHROMA/SOUND AMP
S802Y
AT+5V
TEST POINT
CP101
8283_0912_00_000
1
GND
2
I2C_SCL
3
I2C_SDA
4
I2C_OFF
5
AGC
6
7
6
5
4
AFT
7
VIDEO
8
SOUND_L
9
SOUND_R
FROM/TO IF/CHROMA/SOUND AMP
TUNER_AGC117V
TUNER_IF
AFTPOWER_FAIL
SDA
SCL
OSD-R
OSD-G
OSD-BGND
OSD-Y
AFC
T_TEXT_RESET
A_MUTEGND
B.B
TO VIDEO/R.G.B SWITCH
AV1
YS.MUTE
FROM/TO JACK
AV1
SOUND_R_1
SOUND_L_1
TU_VIDEO_OUT
A_MUTE
FOR_VCR
SCL
SDA
3
R107
100
R105
100
R111
4.7K
IC102 M24C04-BN6
0.0
1234
E0
0.0
E1
0.0
E2
0.0
VSS
AV SW.
Q103
DTC114TKA
R147
10K
R142 1.2K
MEMORY
R145
R109
10K
5.2
VCC
0.0
MODE
SCL
4.8
5678
SDA
4.8
5.0
4.8
0.0
1K
R108
10K
R110
22K
SLR-342VCT32
OSD-R
OSD-G
OSD-B
OSD-Y
AFC
C123
220P
STAND BY
D107
CH
C124
OEC6056A
C112
C101
0.01 B
1006.3VKS
R124
100
CH
R113
220P
100
MICON
4.6 4.8 5.0 5.0 0.0 4.9 0.0 5.0 4.9 4.8 0.0
IC101
4.9
11011
T_RESET
4.4
A_MUTE
0.0
3
BLUE BACK H
0.0
DEGAUSS
NC
0.0
56789
YS.MUTE
4.8
AV1
4.8
AV2
4.8
ATS
4.9
KEY
4.8
AFT
5.2
FORTHED VCRV-SYNC
R114
270
NCNC
NCNC
VSS
VDD
PAL/SEC
12 9V POWER
13 STAND BY LED
14 ON TIME LED
22 H-SYNC
VSS
12 13 14 15 16 17 18 19220 21 22
NCNC NC
NC
0.0
NC
C113 39P CH
34 SOUND B
35 SCL
43 AKB WHITE
44 POWER21 OSD Y
OSD R
W868
C116 39P CH
8
7
6
5
4
3
2.2K
R101
2
ACCESSORY
BT001
R03(AB)E_20_T
BT002
R03(AB)E_20_T
TM101
SBER00179A
R102
390
VOL UP
SW102
R103
820
EVQPB105K
SW104
VOL DOWN
EVQPB105K
R138
1.2K
SW106
CH UP
EVQPB105K
R139
2.2K
SW107
CH DOWN
EVQPB105K
10K
R131
3.9
R132
820
R130
4.9
H-BUFFER
Q102
2SC2412K
0.0
15K
1
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1K
R127
V-BUFFER
Q101
2SC2412K
33K
R128
5.2
0.1
0.0
2.2K
C109
R129
0.022 M
THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE:
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.