Samsung cs29k5m service manual

DIGITAL TELEVISION RECEIVER
Chassis : KS7A(P) REV.1 Model : CS29K5MHUX/AAG
CS29M6MBUX/XST
DIGITAL TELEVISION RECEIVER CONTENTS
Specifications
Alignment and Adjustments
Exploded Views and Parts List
PCB Diagram
Schematic Diagrams
1.
2.
3.
4.
5.
6.
SERVICE
Manual
ELECTRONICS
© Samsung Electronics Co., Ltd. Nov . 2004
Printed in Korea
AA82-02040A
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.
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 nameplate.
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 crosshatch pattern.
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 SCREEN Adjustment
1. Input Toshiba Pattern If a Toshiba pattern is not available, Enter “Service Mode” and select “Test pattern 2”(Toshiba pattern)
2. Enter “Service Mode”.
3. Select “G2-Adjust”.
4. Set the values as example
5. Turn the SCREEN VR until “Read Cutoff” and “Read Drive” are green. (The incorrect SCREEN Voltage may result that “Read Cutoff” and “Read Drive” should be red)
ex) IBRM = 175
WDRV = 110 CDL = 250 COLR G B = 110 110 110
2-6 White Balance Adjustment
1. Warm up the TV set for at least 30 minutes.
2. Enter the Service Mode by pressing the remote control keys in the following sequence:
Power Off ➞ Info Menu ➞ Mute Power On
3. Initialize all set data.
4. Input a Toshiba pattern.
5. Using a probe(CA100), do the White Balance adjustments. (1) Adjust Low-Light.
- Adjust Sub Brightness to set Y.
- Adjust B Cutoff to set y.
- Adjust R Cutoff to set x.
(2) Adjust High-Light.
- Adjust Sub Contrast to set Y.
- Adjust B Drive to set y.
- Adjust R Drive to set x. (3) Check the value of Low-Light. If necessary, readjust Low-Light. (4) Check the value of High-Light. If necessary, readjust High-Light.
2-8 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
2-8-1 Service Mode
Alignment and Adjustments
Samsung Electronics 2-3
2-7 When adjusting Screen Voltage and White Balance
1. Screen Voltage and White Balance are related each other. Make sure both adjustments are correct.
2. Adjust Screen Voltage before White Balance Adjustments. Make sure Screen Voltage is correct.
3. If White Balance has been readjusted, re-check Screen Voltage.
4. After adjustments are complete, check the following.
- If spots appear on the screen after pressing the Power On/Off key, readjust Screen Voltage.
- If flyback lines appear on the screen, readjust Screen Voltage.
PICTURE OFF PICTURE ON
PICTURE ON
INFO
()
()
INFO
MENU
MUTE
FACTORY
Alignment and Adjustments
2-4 Samsung Electronics
2-8-2 Factoy Mode OSD
SERVICE / T - ETPAS0 - 10XX
Deflection Video Adjust1 Video Adjust2 Video Adjust3 Option : D2 16 04 02 YC Delay Test Pattern : 0 EEPROM Bus Stop Check Sum : 0000 Reset / 2004-03-08 G2 Adujust
2-8-2(A) ADJUST
127 127 127 180 127 127 127 127 127 127 127 127 127 127 255 255 127 127 127 127
Item Min
Max
-128
-128
-128 32
-128
-128
-128
-128
-128
-128
-128
-128
-128
-128
0 0
-128
-128
-128
-128
Remark
Adjust Adjust Adjust Adjust Adjust
FIX(Depend on the inch)
Adjust Adjust
Adjust FIX(Depend on the inch) FIX(Depend on the inch)
Adjust
Adjust
Adjust
FIX
(Depend on the inch&CRT Drive)
FIX(Depend on the inch&CRT Drive) FIX(Depend on the inch&CRT Drive) FIX(Depend on the inch&CRT Drive) FIX(Depend on the inch&CRT Drive) FIX(Depend on the inch&CRT Drive)
V Amp V Shift H EW H Shift V Linearity V SC H Parabolra Upper Corner Lower Corner Upper Corner 6 Lower Corner 6 H Trapezium Bow Angle EHT Time EHT Threshold EHT Vertical EHT Horizontal EHT Vertical2 EHT Horizontal2
DEFLECTION : PAL
ET
24
-35 25
124
0 43 62
-5
-5
-4
-4
-3 3 1
20
1
-12 5
-19
10
Alignment and Adjustments
Samsung Electronics 2-5
G/R
12
-59 5
105
0
43 80
-19
-39 0 0 1 3
-2
20
1
-12 5
-19
10
Alignment and Adjustments
2-6 Samsung Electronics
127 127 127 180 127 127 127 127 127 127 127 127 127 127
Item Min
Max
-128
-128
-128 32
-128
-128
-128
-128
-128
-128
-128
-128
-128
-128
Remark
FIX FIX FIX FIX FIX FIX FIX FIX FIX FIX FIX FIX FIX FIX
V Amp V Shift H EW H Shift V Linearity V SC H Parabolra Upper Corner Lower Corner Upper Corner 6 Lower Corner 6 H Trapezium Bow Angle
DEFLECTION : NTSC OFFSET
ET
-2 6 0
14
-3 0 0 0 0 0 0 0 0 0
G/R
-2 6 0
14
-3 0 0 0 0 0 0 0 0 0
Alignment and Adjustments
Samsung Electronics 2-7
Video Adjust 1
255 255 255 255 255 255 100
63 23 63
1 127 255 255
15 10
10 255 127 127
15
Item Min
Max
0 0 0 0 0 0 0 0 0 0 0
-128 0 0 0
-10
-10 0
10 10
0
Remark
Adjust
FIX Adjust Adjust
FIX Adjust Adjust Adjust
FIX(Depend on the country&CRT Drive)
FIX
FIX
FIX(Depend on the inch)
FIX
FIX
FIX(Depend on the inch&CRT Drive)
Inch(Depend on the CRT) Inch(Depend on the CRT)
FIX
FIX
FIX
FIX
ET
127 127 127 127 127 127
50 55 10 42
1
16 240 255
8
-5
-4
65
-
-
-
R Cutoff G Cutoff B Cutoff R Drive G Drive B Drive Sub Bright Sub Contrast Sub Color Sub Tint AKB Option BCL Threshold BCL Gain BCL Time Sub Sharpness DVD R Cutoff DVD B Cutoff BCL BCUT Pilot Low(NTSC ONLY) Pilot High(NTSC ONLY)
V-Mute(X100ms,NTSC ONLY
G/R
127 127 127 127 127 127
50 55
2
52
1
22 240 255
13
-5
-4
55
-
-
-
Alignment and Adjustments
2-8 Samsung Electronics
Video Adjust 2
115
20 255 255
15
63
15
15
15
3 3
7 15 15 15
255 255
1
3
Item Min
Max
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Remark
FIX FIX FIX FIX
FIX(Depend the Tuner) FIX(Depend on the CRT Drive AMP) FIX(Depend on the CRT Drive AMP)
FIX FIX FIX FIX
FIX FIX(Depend on the mode) FIX(Depend on the mode) FIX(Depend on the mode) FIX(Depend on the mode)
FIX
FIX
FIX
2
10 159 159
1 6 4 6 7 3 3
7 15 15 15
255 255
1
3
VSU Melody Volume HB Start HB Stop RF AGC VM Gain VM Delay V_Peaking BLE Tilt BLE Gain BLE Mode BLE Break CTI Gain CTI Coring LTI Gain D-EHT Time DCT Ratio LTI Enable VSP Comb
ET
G/R
2
10 159 159
4 0 0 0 6 1 2 1 0 0 0 5
50
0 0
Alignment and Adjustments
Samsung Electronics 2-9
Video Adjust 3
31
1 127 255 127 255 255
15 63
15 255 255 255
15
15 255 255
Item Min
Max
0 0
-128 0
-128 0 0 0 0 0 0 0 0 0 0 0 0
Remark
FIX FIX FIX FIX FIX FIX FIX FIX FIX FIX FIX FIX
FIX FIX(Depend on the CRT) FIX(Depend on the CRT) FIX(Depend on the CRT) FIX(Depend on the CRT)
ET
0 1
30
140
50 30
145
10 63 10 24 23 39
5
4 125 122
NR Off Value Gamma Mode Gamma Correction BST StartPoint BST GAIN(B) DPWL Gain DPWL Start PIP Contrast PIP Tint PIP Color PIP PAL V.Pos PIP NTSC V.Pos PIP H.Pos PIP R Cutoff PIP B Cutoff PIP R Drive PIP B Drive
G/R
3 1
75
140
50 30
145
10 63 10 24 23 39
5
4 125 122
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