SAMSUNG CL21K30MQ6TXAP, CL21K30MQ6XXAP Service Manual

Specifications
Alignment & Adjustment
Exploded View & Part List
Electrical Part List
PCB Diagram
Schematic Diagrams
1.
2.
3.
4.
5.
6.
COLOR TELEVISION RECEIVER
CL21K30MQ6XXAP
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
AA82-02536A
ELECTRONICS
Specifications
Samsung Electronics 1-1
1. Specifications
Broadcasting System
Broadcasting System
Tuning Range
Antenna Impedance
Intermediate Frequency
Power Consumption
NTSC
Electronic Remote Control System
VHF : CH2 ~ CH13
UHF : CH14 ~ CH69
CATV : CH1,4 ~ CH125
75 ohm Unbalanced
Video : 45.75 MHz
Sound : 41.25 MHz
Chrominance Subcarrier : 42.17MHz
AC 120V/60Hz : TX-P2030. TX-P2034, TX-P2036
AC 100V~240V/60Hz : CL-21M6MQ, CL-21K5MQ, CL-21K5MN
CL-21A11MQ
MEMO
1-2 Samsung Electronics
Alignment & Adjustment
Samsung Electronics 2-1
2. Alignment & Adjustment
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
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 27 KV under any conditions.
Caution : There is no high voltage adjustment on this chassis. The B+ power supply should be +123V
(with full color- bar input and normal picture level).
Alignment & Adjustment
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
2-5-1 Service Mode
1. To enter the "Service Mode", Press the remotecontrol keys in this sequence :
- If you do not have Factory remote-control
"Power Off" → "MUTE" → "1" → "8" → "2" → "Power On"
- If you have Factory remote-control "Power On" → "DISPLAY" → "FACTORY"
2-5-2 Factoy Mode OSD
Service ADJUST OPTION CHCKSUM RESET
T-FMTNKR-0000
Alignment & Adjustment
Samsung Electronics 2-3
2-6 Factoy Data
2-6-1 T-FNTUNS FACTORY
No
10
11
12
13
14
15
16
Deflection
1
2
3
4
5
6
7
8
9
HS
VA
VSL
VS
AGC
CDL
SCT
SBT
BLR
BLB
RG
GG
BG
SC
STT
AKB
ORION CRT 21” FLAT
24
30
27
25
33
9
10
7
28
43
30
32
46
33
5
0
SDI CRT 21” FLAT
30
22
23
25
33
9
10
7
28
43
30
32
46
33
5
0
Remark
ADJ
ADJ
ADJ
FIX
ADJ
FIX
ADJ
ADJ
ADJ
ADJ
ADJ
FIX
ADJ
FIX
FIX
FIX
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
NDL
NSR
VOL
MVOL
RPO0
RPO1
CAP
FMWS
AGCS
OMD
SCL
PWL
MUS
SCBT
SSP
DNSR
10
10
12
15
15
40
11
1
7
1
1
0
1
3
1
5
1
10
10
7
1
1
12
0
1
15
3
15
1
40
5
11
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
FIX
Alignment & Adjustment
2-4 Samsung Electronics
No
33
34
35
36
37
Deflection
2-6-2 White Balance
Deflection
High Light
Low Light
DSBT
DCDL
DBLR
DBLB
DSK
ORION CRT 21” FLAT
0
11
40
60
0
ORION CRT 21” FLAT
275/265 45FL
275/265 1.5FL
SDI CRT 21” FLAT
0
11
40
60
0
SDI CRT 21” FLAT
275/265 45FL
275/265 1.5FL
Remark
FIX
FIX
FIX
FIX
FIX
Remark
Alignment & Adjustment
Samsung Electronics 2-5
2-6-3 Option
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