SAMSUNG CL25M2MQUX-XAX Service Manual
Specifications
Alignment and Adjustments
Block Diagram
Exploded View & Part List
Electrical Part List
Schematic Diagrams
1.
2.
3.
4.
5.
6.
COLOR TELEVISION RECEIVER
Chassis : KS7A(N_R2)_Gold Rush
Model : CL25M2MQUX/XAX
SERVICE
Manual
COLOR TELEVISION RECEIVER CONTENTS
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
© Samsung Electronics Co., Ltd. May. 2005
Printed in Korea
AA82-02527A
ELECTRONICS
Alignment and Adjustments
Samsung Electronics 2-1
2. Alignment and Adjustments
2-1 General Alignment Instructions
1. Usually, a color TV-VCR needs only slight touch-up
adjustment upon installation.
Check the basic characteristics such as height,
horizontal and vertical sync and focus.
2. Observe the picture for good black and white
details. There should be objectionable color shading;
if color shading is present, demagnetize, perform purity
and convergence adjustments described below.
3. Use the specified test equipment or its equivalent.
4. Correct impedance matching is essential.
5. Avoid overload. Excessive signal from a sweep
generator might overload the front-end of the TV.
When inserting signal markers, do not allow the marker
generator to distort test results.
6. Connect the TV only to an AC power source with voltage
and frequency as specified on the backcover ameplate.
7. Do not attempt to connect or disconnect any wires while
the TV is turned on. Make sure that the power cord is
disconnected before replacing any parts.
8. To protect against shock hazard, use an isolation
transformer.
2-2 Automatic Degaussing
A degaussing coil is mounted around the picture tube,
so that external degaussing after moving the TV should
be unnecessary. But the receiver must be properly
degaussed upon installation.
The degaussing coil operates for about 1 second after
the power is switched ON. If the set is moved or turned
in a different direction, the power should be OFF for at
least 10 minutes.
If the chassis or parts of the cabinet become
magnetized, poor color purity will result. If this happens,
use an external degaussing coil. Slowly move the
degaussing coil around the faceplate of the picture tube
and the sides and front of the receiver. Slowly withdraw
the coil to a distance of about 6 feet before turning
power OFF.
If color shading persists, perform the following Color
purity and Convergence adjustments.
2-3 High Voltage Check
CAUTION : There is no high voltage adjustment on this
chassis. The B+ power supply should be +135 volts (with
full color- bar input and normal picture level).
1. Connect a digital voltmeter to the second anode of the
picture tube.
2. Turn on the TV. Set the Brightness and Contrast
controls to minimum (zero beam current).
3. Adjust the Brightness and contrast controls to both
extremes. Ensure that the high voltage does not exceed
30 KV under any conditions.
Alignment and Adjustments
2-2 Samsung Electronics
2-4 FOCUS Adjustment
1. Iput a black and white signal.
2. Adjust the tuning control for the clearest picture.
3. Adjust the FOCUS control for well defined scanning lines in the center area of the screen.
2-5 Factory Adjustment
1. To enter the "Service Mode", Press the remote-control keys in this sequence :
- If you do not have Factory remote-control
- If you have Factory remote-control
2-5-1 Service Mode
2-5-2 Factoy Mode OSD
Service
Deflection
Video Adujst 1
Video Adujst 2
Video Adujst 3
OPTION
YC DELAY
TEST PATTERN
EEPROM
BUS STOP
CHCKSUM
RESET
G2 ADJUST
2-5-2(A) ADJUST
PICTURE OFF PICTURE ON
PICTURE ON
MUTE 1 8 2
DISPLAY (
)
FACTORY
Alignment and Adjustments
Samsung Electronics 2-3
DEFLECTION (NT 60Hz)
2-6 Functions of Each Port in Service Mode
Item Remark
CL29T21
CL29M21
CT29M20MQUXXTC
CT29M16MQUXXTC
CT29K10MQUXXTW
CL25M6
CL25M5
CT25M20MQUXXTC TXP2434FX
TXP2734FX
TXP2728FX
TXP2730FX
TXP2730S
CL21S8
CL21T21
CL21M21
CT21T20MQUXXTC
29" SDI MST 29" SDI MST 25" SDI MST 25" SDI MST 25" SDI MST 29" SDI MST 21" SDI MST
V Amp ADJ 28 28 9 9 9 28 31
V Shift ADJ -30 -30 -20 -20 -20 -30 -28
H EW ADJ -2 -2 40 40 40 -2 14
H Shift ADJ 130 130 123 123 123 130 146
V Linearity ADJ -8 -8 -8 -8 -8 -8 -4
V SC FIX 43 43 43 43 43 43 43
H Parabola ADJ 67 67 60 60 60 63 7
Upper Corner ADJ 1 1 -2 -2 -2 1 8
Lower Corner ADJ -10 -10 -13 -13 -13 -10 -4
Upper Corner6 FIX -7 -7 -7 -7 -7 -7 -7
Lower Corner6 FIX 8 8 8 8 8 8 8
H Trapezium ADJ 9 9 8 8 8 9 4
Bow ADJ 3 3 -1 -1 -1 3 3
Angle ADJ 0 0 0 0 0 0 0
EHT Time FIX 20 20 20 20 20 20 20
EHT Threshold FIX 1 1 1 1 1 1 1
EHT Vertical FIX -12 -12 -12 -12 -12 -12 -12
EHT Horizontal FIX 77 77 77 77 77 77 77
EHT Vertical2 FIX -10 -10 -10 -10 -10 -10 -10
EHT Horizontal2 FIX 8 8 8 8 8 8 17
Item Remark
Brazil
CL34Z6P
Brazil
CL29Z6P
CL29M21
Brazil
CL21M21
CL21N11
34" TSB(USA) MTPD 29" SDI MST 29" SDI MST
V Amp ADJ 28 28 31
V Shift ADJ -30 -30 -28
H EW ADJ -2 -2 14
H Shift ADJ 130 130 146
V Linearity ADJ -8 -8 -6
V SC FIX 43 43 34
H Parabola ADJ 67 67 7
Upper Corner ADJ 1 1 8
Lower Corner ADJ -10 -10 -4
Upper Corner6 FIX -7 -7 -7
Lower Corner6 FIX 8 8 8
H Trapezium ADJ 9 9 4
Bow ADJ 3 3 3
Angle ADJ 0 0 0
EHT Time FIX 20 20 30
EHT Threshold FIX 1 1 10
EHT Vertical FIX 2 -12 0
EHT Horizontal FIX 30 77 0
EHT Vertical2 FIX -17 -10 -50
EHT Horizontal2 FIX 7 8 0
Alignment and Adjustments
2-4 Samsung Electronics
DEFLECTION (PAL 50Hz)
Item Remark
CL29T21
CL29M21
CT29M20MQUXXTC
CT29M16MQUXXTC
CT29K10MQUXXTW
CL25M6
CL25M5
CT25M20MQUXXTC TXP2434FX
TXP2734FX
TXP2728FX
TXP2730FX
TXP2730S
CL21S8
CL21T21
CL21M21
CT21T20MQUXXTC
29" SDI MST 29" SDI MST 25" SDI MST 25" SDI MST 25" SDI MST 29" SDI MST 21" SDI MST
V Amp ADJ 4 0 0 0 0 0 0
V Shift ADJ -6 -6 -6 -6 -6 -6 -6
H EW ADJ 0 0 0 0 0 0 0
H Shift ADJ -16 -12 -12 -12 -12 -12 -12
V Linearity ADJ 0 3 3 3 3 3 3
V SC FIX 0 0 0 0 0 0 0
H Parabola ADJ 0 0 0 0 0 0 0
Upper Corner ADJ 0 0 0 0 0 0 0
Lower Corner ADJ 0 0 0 0 0 0 0
Upper Corner6 ADJ 0 0 0 0 0 0 0
Lower Corner6 ADJ 0 0 0 0 0 0 0
H Trapezium ADJ 0 0 0 0 0 0 0
Bow FIX 0 0 0 0 0 0 0
Angle FIX 0 0 0 0 0 0 0
EHT Time FIX 20 20 20 20 20 20 20
EHT Threshold FIX 1 1 1 1 1 1 1
EHT Vertical FIX -12 -12 -12 -12 -12 -12 -12
EHT Horizontal FIX 77 77 77 77 77 77 77
EHT Vertical2 FIX -10 -10 -10 -10 -10 -10 -10
EHT Horizontal2 FIX 8 8 8 8 8 8 8
Item Remark
Brazil
CL34Z6P
Brazil
CL29Z6P
CL29M21
Brazil
CL21M21
CL21N11
34" TSB(USA) MTPD 29" SDI MST 29" SDI MST
V Amp ADJ 4 4 4
V Shift ADJ -6 -6 -6
H EW ADJ 0 0 0
H Shift ADJ -16 -16 -16
V Linearity ADJ 0 0 0
V SC FIX 0 0 0
H Parabola ADJ 0 0 0
Upper Corner ADJ 0 0 0
Lower Corner ADJ 0 0 0
Upper Corner6 ADJ 0 0 0
Lower Corner6 ADJ 0 0 0
H Trapezium ADJ 0 0 0
Bow FIX 0 0 0
Angle FIX 0 0 0
EHT Time FIX 20 20 30
EHT Threshold FIX 1 1 10
EHT Vertical FIX 2 -12 0
EHT Horizontal FIX 30 77 0
EHT Vertical2 FIX -17 -10 -50
EHT Horizontal2 FIX 7 8 0
Alignment and Adjustments
Samsung Electronics 2-5
Video Adjust 1
Item Remark
CL29T21
CL29M21
CT29M20MQUXXTC
CT29M16MQUXXTC
CT29K10MQUXXTW
CL25M6
CL25M5
CT25M20MQUXXTC TXP2434FX
TXP2734FX
TXP2728FX
TXP2730FX
TXP2730S
CL21S8
CL21T21
CL21M21
CT21T20MQUXXTC
29" SDI MST 29" SDI MST 25" SDI MST 25" SDI MST 25" SDI MST 29" SDI MST 21" SDI MST
R Cutoff ADJ 127 127 127 127 127 127 127
G Cutoff FIX 127 127 127 127 127 127 127
B Cutoff ADJ 127 127 127 127 127 127 127
R Drive ADJ 127 127 127 127 127 127 127
G Drive FIX 127 127 127 127 127 127 127
B Drive ADJ 127 127 127 127 127 127 127
Sub Bright ADJ 60 60 60 60 60 60 60
Sub Contrast ADJ 49 49 49 49 49 49 49
Sub Color FIX 0 0 0 0 0 0 0
Sub Tint FIX 46 46 46 46 46 46 46
AKB Option FIX 1 1 1 1 1 1 1
BCL Threshold FIX 24 24 21 21 21 24 20
BCL Gain FIX 200 200 240 240 240 200 240
BCL Time FIX 100 100 230 230 230 100 230
Sub Sharpness FIX 10 10 15 15 15 10 15
Pilot Low FIX 25 25 25 25 25 25 25
Pilot High FIX 45 45 45 45 45 45 45
V-Mute(x100ms) FIX 3 3 3 3 3 3 3
BCL TCUP FIX 65 - 65 65 65 65 65
Item Remark
Brazil
CL34Z6P
Brazil
CL29Z6P
CL29M21
Brazil
CL21M21
CL21N11
34" TSB(USA) MTPD 29" SDI MST 29" SDI MST
R Cutoff ADJ 127 127 127
G Cutoff FIX 127 127 127
B Cutoff ADJ 127 127 127
R Drive ADJ 127 127 127
G Drive FIX 127 127 127
B Drive ADJ 127 127 127
Sub Bright ADJ 60 60 60
Sub Contrast ADJ 49 49 49
Sub Color FIX 0 0 0
Sub Tint FIX 46 46 46
AKB Option FIX 1 1 1
BCL Threshold FIX 28 24 21
BCL Gain FIX 200 200 200
BCL Time FIX 100 100 100
Sub Sharpness FIX 10 10 10
Pilot Low FIX 25 25 25
Pilot High FIX 45 45 45
V-Mute(x100ms) FIX 3 3 3
BCL TCUP FIX 65 65 65
Alignment and Adjustments
2-6 Samsung Electronics
Video Adjust 2
Item Remark
CL29T21
CL29M21
CT29M20MQUXXTC
CT29M16MQUXXTC
CT29K10MQUXXTW
CL25M6
CL25M5
CT25M20MQUXXTC TXP2434FX
TXP2734FX
TXP2728FX
TXP2730FX
TXP2730S
CL21S8
CL21T21
CL21M21
CT21T20MQUXXTC
29" SDI MST 29" SDI MST 25" SDI MST 25" SDI MST 25" SDI MST 29" SDI MST 21" SDI MST
VSU FIX 2 2 2 2 2 2 2
Melody Volume FIX 5 5 5 5 5 5 5
HB Start FIX 159 159 159 159 159 159 159
HB Stop FIX 149 149 149 149 149 149 149
RF AGC FIX 1 1 1 1 1 1 1
VM Gain FIX 7 7 0 0 0 6 0
VM Delay FIX 7 7 4 4 4 4 4
V Peaking FIX 12 12 12 12 12 12 12
BLE Tilt FIX 7 7 7 7 7 7 7
BLE Gain FIX 2 2 2 2 2 1 2
BLE Mode FIX 2 2 2 2 2 2 2
BLE Break FIX 1 1 1 1 1 1 1
CTI Gain FIX 1 1 1 1 10 10 1
CTI Coring FIX 15 15 15 15 5 5 15
LTI Gain FIX 15 15 15 15 15 15 15
D-EHT Time FIX 5 5 5 5 5 5 6
DCT Ratio FIX 50 50 50 50 50 50 50
VSP COMB FIX 3 3 3 3 3 3 3
Item Remark
Brazil
CL34Z6P
Brazil
CL29Z6P
CL29M21
Brazil
CL21M21
CL21N11
34" TSB(USA) MTPD 29" SDI MST 29" SDI MST
VSU FIX 2 2 2
Melody Volume FIX 5 5 5
HB Start FIX 159 159 159
HB Stop FIX 149 149 120
RF AGC FIX 1 1 1
VM Gain FIX 7 7 7
VM Delay FIX 7 7 7
V Peaking FIX 12 12 12
BLE Tilt FIX 7 7 7
BLE Gain FIX 2 2 2
BLE Mode FIX 2 2 2
BLE Break FIX 1 1 1
CTI Gain FIX 1 1 1
CTI Coring FIX 15 15 15
LTI Gain FIX 15 15 15
D-EHT Time FIX 5 5 5
DCT Ratio FIX 50 50 50
VSP COMB FIX 3 3 3
Alignment and Adjustments
Samsung Electronics 2-7
Video Adjust 3
Item Remark
CL29T21
CL29M21
CT29M20MQUXXTC
CT29M16MQUXXTC
CT29K10MQUXXTW
CL25M6
CL25M5
CT25M20MQUXXTC TXP2434FX
TXP2734FX
TXP2728FX
TXP2730FX
TXP2730S
CL21S8
CL21T21
CL21M21
CT21T20MQUXXTC
29" SDI MST 29" SDI MST 25" SDI MST 25" SDI MST 25" SDI MST 29" SDI MST 21" SDI MST
NR Off Value FIX 3 3 3 3 3 3 3
Gamma Mode FIX 1 1 1 1 1 1 1
Gamma Correction FIX 50 50 60 60 60 30 50
BST StartPoint FIX 145 145 145 145 145 145 145
BST Gain(B) FIX 50 50 50 50 50 50 50
DPWL Gain FIX 80 80 80 80 80 80 80
DPWL Start FIX 155 155 155 155 155 155 155
PIP Contrast FIX 15 15 10 10 10 10 15
PIP Tint FIX 63 63 63 63 63 63 63
PIP Color FIX 5 5 7 7 7 7 5
PIP PAL V.Pos FIX 24 24 24 24 24 24 24
PIP NTSC V.Pos FIX 23 23 23 23 23 23 23
PIP H.Pos FIX 39 39 39 39 39 39 39
PIP R Cutoff FIX 2 2 4 4 4 4 2
PIP B Cutoff FIX 1 1 5 5 5 5 1
PIP R Drive FIX 170 170 168 168 168 168 170
PIP B Drive FIX 190 190 212 212 212 212 190
Item Remark
Brazil
CL34Z6P
Brazil
CL29Z6P
CL29M21
Brazil
CL21M21
CL21N11
34" TSB(USA) MTPD 29" SDI MST 29" SDI MST
NR Off Value FIX 3 3 3
Gamma Mode FIX 1 1 1
Gamma Correction FIX 50 50 50
BST StartPoint FIX 145 145 145
BST Gain(B) FIX 50 50 50
DPWL Gain FIX 80 80 80
DPWL Start FIX 155 155 155
PIP Contrast FIX 15 15 15
PIP Tint FIX 63 63 63
PIP Color FIX 5 5 5
PIP PAL V.Pos FIX 24 24 24
PIP NTSC V.Pos FIX 23 23 23
PIP H.Pos FIX 39 39 39
PIP R Cutoff FIX 2 2 2
PIP B Cutoff FIX 1 1 1
PIP R Drive FIX 170 170 170
PIP B Drive FIX 190 190 190
Alignment and Adjustments
2-8 Samsung Electronics
YC DELAY
Test Pattern
Item Remark
CL29T21
CL29M21
CT29M20MQUXXTC
CT29M16MQUXXTC
CT29K10MQUXXTW
CL25M6
CL25M5
CT25M20MQUXXTC TXP2434FX
TXP2734FX
TXP2728FX
TXP2730FX
TXP2730S
CL21S8
CL21T21
CL21M21
CT21T20MQUXXTC
29" SDI MST 29" SDI MST 25" SDI MST 25" SDI MST 25" SDI MST 29" SDI MST 21" SDI MST
PAL Delay FIX 0 0 0 0 0 0 0
SECAM Delay FIX -2 -2 -2 -2 -2 -2 -2
NTSC Delay FIX -3 -3 -3 -3 -3 -3 -3
PAL(AV) Delay FIX -1 -1 -1 -1 -1 -1 -1
SECAM(AV) Delay FIX -3 -3 -3 -3 -3 -3 -3
NTSC(AV) Delay FIX -4 -4 -4 -4 -4 -4 -4
Item Remark
Brazil
CL34Z6P
Brazil
CL29Z6P
CL29M21
Brazil
CL21M21
CL21N11
34" TSB(USA) MTPD 29" SDI MST 29" SDI MST
PAL Delay FIX 0 0 0
SECAM Delay FIX -2 -2 -2
NTSC Delay FIX -3 -3 -3
PAL(AV) Delay FIX -1 -1 -1
SECAM(AV) Delay FIX -3 -3 -3
NTSC(AV) Delay FIX 0 0 0
Item Remark
CL29T21
CL29M21
CT29M20MQUXXTC
CT29M16MQUXXTC
CT29K10MQUXXTW
CL25M6
CL25M5
CT25M20MQUXXTC TXP2434FX
TXP2734FX
TXP2728FX
TXP2730FX
TXP2730S
CL21S8
CL21T21
CL21M21
CT21T20MQUXXTC
29" SDI MST 29" SDI MST 25" SDI MST 25" SDI MST 25" SDI MST 29" SDI MST 21" SDI MST
Test Pattern FIX 0 0 0 0 0 0 0
Item Remark
Brazil
CL34Z6P
Brazil
CL29Z6P
CL29M21
Brazil
CL21M21
CL21N11
34" TSB(USA) MTPD 29" SDI MST 29" SDI MST
Test Pattern FIX 0 0 0
Alignment and Adjustments
Samsung Electronics 2-9
Option Byte
Item
TXP2734FXXAA
TXP2730FXXAA
TXP2730S/XAA
TXP2434FXXAA
TXP2728X/XAC
TXP2730FXXAC
TXP2734FXXAC
CL29M16
CL29K5
CL29M5
CL29M21
CL29T21
CL25M6
CT25M20MQUX
XTC
CL21S8
CT21T20MQUX
XTC
1.System CT-N CT-N CT-N CL CL CL CL CL CL
2.Sound Stereo Stereo Stereo Stereo Stereo Stereo Stereo Stereo Stereo
2.ACS - - - - - - - - -
3.AV Jack 2RCA+S+DVD 2RCA+S+DVD 2RCA+S+DVD 2RCA+S+DVD 2RCA+S+DVD 2RCA+S+DVD 2RCA+S+DVD 2RCA+DVD 2RCA+DVD
4.Tilt On Off On On On Off Off Off Off
5.Vchip USA USA USA+CANADA Off Off Off Off Off Off
6.Caption On On On On On On On On On
7.PIP Off Off Off Off 2-Tuner Off Off Off Off
8.LNA Off Off Off Off ON Off Off Off Off
9.Auto On Off Off Off Off Off Off Off Off Off
10.StandBy LED Off Off Off Off Off Off Off Off Off
11.A/V Multi - - - - - - - - -
11.Philippines Off Off Off Off Off Off On Off ON
12.Osd Language English English English English English English English English English
13.FM Radio Off Off Off Off Off Off Off Off Off
14.Antenna Disp Off Off Off Off Off Off Off Off Off
15.Hi-Deviation Off Off Off Off Off Off Off Off Off
16.Plug & Plat On On On On On On On On On
17.DNIe Jr Off Off Off Off On Off On Off On
18.Volume Curve Small Small Small Small Small Small Small Small Small
19.Color Matrix Japan Japan Japan Japan Japan Japan Japan Japan Japan
20.PWM/Parabola Parabola Parabola Parabola Parabola Parabola Parabola Parabola Parabola Parabola
21.Hotel mode - - - - - - - - -
22. Child Lock - - - - - - - - -
23. Air/Cable On - - - - - - - - -
Item
CL21T21
CL21M21
CT29K10MQUX
XTW
CT29M20MQUX
XTC
CT29M16MQUX
XTC
Brazil
CL34Z6P
CL29Z6P
Brazil
CL29M21
Brazil
CL21M21
Brazil
CL21N11
1.System CL CT-N CL CL CL CL CL CL
2.Sound Stereo - Stereo Stereo
2.ACS - ON - - Off Off Off Off
3.AV Jack 2RCA+DVD 2RCA+S+DVD 2RCA+S+DVD 2RCA+S+DVD 2RCA+S+DVD 2RCA+S+DVD 2RCA+DVD 2RCA+DVD
4.Tilt Off On On On On On Off Off
5.Vchip Off Off Off Off Off Off Off Off
6.Caption On On On On On On On On
7.PIP 1-Tuner Off Off Off 2-Tuner Off 1-Tuner Off
8.LNA 0ff Off Off Off ON Off Off Off
9.Auto On Off ON Off Off Off Off Off Off
10.StandBy LED Off ON Off Off Off Off Off Off
11.A/V Multi - - - - - - - -
11.Philippines Off Off ON ON Off Off Off Off
12.Osd Language English English English English English English English English
13.FM Radio Off Off Off Off Off Off Off Off
14.Antenna Disp Off Off Off Off Off Off Off Off
15.Hi-Deviation off Off Off Off Off Off Off Off
16.Plug & Plat On On On On On On On On
17.DNIe Jr On Off On Off On On On On
18.Volume Curve Small Small Small Small Small Small Small Small
19.Color Matrix Japan Japan Japan Japan Japan Japan Japan Japan
20.PWM/Parabola Parabola Parabola Parabola Parabola Parabola Parabola Parabola Parabola
21.Hotel mode - - - - Off Off Off Off
22. Child Lock - - - - On On On On
23. Air/Cable On - - - - On On On On
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