Samsung CK-21, CK-53, CK-20, CK-50 Alignment and Adjustments

Alignment and Adjustments
Samsung Electronics 4-1
4. Alignment and Adjustments
4-1 Preadjustment
4-1-1 Factory Mode
1. Do not attempt these adjustments in the Video Mode.
3. Do not tamper with the “Adjustment” screen of the Factory Mode menu. This screen is intended only for factory use.
4-1-2 When EEPROM (IC902) Is Replaced
1. When IC902 is replaced all adjustment data revert to initial values. It is necessary to re-program this data.
2. After IC902 is replaced, warm up the TV for 10 seconds.
4-1-3 When CRT Is Replaced
1. Make the following adjustments AFTER set­ting up after setting up purity and conver­gence :
White Balance Sub-Brightness Vertical Center Vertical Size Horizontal Size Fail Safe (This adjustment must be the last step).
2. If the EEPROM or CRT is replaced, set PVAto 45 (factory mode) and set SC as follows.
14, 16 inch : 0 20 inch : 10
21 inch : 12
4-2 Factory/Service Mode
4-2-1 Procedure for the “Adjustment” Mode
1. This mode uses the standard remote control. The Service Mode is activated by entering the following remote-control sequence :
(1) SLEEP→FACTORY. (2) STAND-BYDISPLAY→ P.STDMUTE
POWER ON.
2. The “SERVICE (FACTORY)” message will be displayed. The Service Mode has four compo­nents: Adjustment, Test Pattern, Option Bytes and Reset.
3. Access the Adjustment Mode by pressing the “VOLUME” keys ( Up or Down). The adjust­ment parameters are listed in the accompany­ing table, and selected by pressing the CHAN­NEL keys (,).
4. Selection sequences for the all system:
DOWN or UP key: AGC>VCO>SBT>SCT>SCR>SC>RG>GG> BG>CDL>BLU>PSL>PVS>PVA>PHS>NSR> STT
5. The VOLUME keys increase or decrease the adjustment values (stored in the non-volatile memory) when Adjustment Mode is cancelled.
6. Cancel the Adjustment Mode by re-pressing the “FACTORY” or “Power OFF” keys.
4-2-2 Main Adjustment Parameter
NOTE : PVS,PVA, PHS, parameters must be aligned using the 50Hz vertical-field rates.
Alignment and Adjustments
4-2 Samsung Electronics
INITIAL DATA
10
8 10
10
47
32
34
32 32
42 40
7
0
80
12
4 0
REMARK
TDA8842 TDA8841
RANGE
0 ~ 63 STEP
0 ~ 23 STEP 0 ~ 23 STEP
0 ~ 23 STEP
0 ~ 63 STEP
0 ~ 63 STEP 0 ~ 63 STEP
0 ~ 63 STEP
0 ~ 63 STEP
0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 23 STEP
1 ~ 13 STEP
0 ~ 128 STEP
0 ~ 1 STEP 1 (For East Europe)
0 ~ 63 STEP
0 ~ 63 STEP 16 (Only TTX Model)
0 ~ 7 STEP 0 ~ 3 STEP
OSD ABBREVIATION
AGC
SBT SCT
SCR
RG
GG
BG
PSL PVS
PVA PHS
NSR STT
VCO
SC
TSS
CDL BLU
FUNCTION
AUTO GAIN CONTROL
SUB BRIGHT SUB CONTRAST
SUB COLOR
RED DRIVE GAIN
GREEN DRIVE GAIN BLUE DRIVE GAIN
PAL VERTICAL SLOPE
PAL VERTICAL SHIFT
PAL VERTICAL AMPLITUDE PAL HORIZONTAL SHIFT NTSC SUB COLOR
SUB TINT
VOLTAGE CONTROL OSCILLATOR
S-CORRECTION
TTX SUB-CONTRAST
CATHODE DRIVE LEVEL BLUE STRETCH MODE
µ
Table 4-1 Main Adjustment Parameter (Zilog, Phlips -com)
Alignment and Adjustments
Samsung Electronics 4-3
4-2-3 Test Pattern (Aging Mode)
1. This mode can be used during servicing, or for confirming that the convergence and purity adjustments are correct.
2. Access the Test Pattern parameters by pressing a CHANNEL keys (,) while the Service Mode is on. The cursor will move to the test pattern. Press the VOLUME keys. On-screen display:
WHITE
AGING
3. AGING Mode (Reference Only)
This pattern is used for pre-heating the CRT during manufacturing —it is accessed in the factory by twice pressing the “SLEEP → FACTORYFACTORY “ key, then white pattern will be displayed.
Even if the TV power is cut off, the Aging Mode is not cancelled, The aging mode is cancelled by repressing the “FACTORY” key or pressing the local “CH UP/DOWN” keys.
4-2-4 Option Bytes
In the Service Mode, various can be selected via the Option Bytes (8 bits each). Example:
NON -TTX MICOM ONLY
TTX MICOM
SYSTEM OSD DISPLAY
BYTE 0 : 8 ­BYTE 1 : 0 -
TDA8842, CK SYSTEM, RCA JACK SYSTEM OSD DISPLAY
BYTE 0 : 11
BIT 6
L (BIT :0)
BIT 5
L (BIT : 0)
BIT 4 L (BIT : 0) L (BIT : 0)
L (BIT : 1) H (BIT : 0) L (BIT : 0) H (BIT : 0) L (BIT : 1)
BIT 3
H (BIT : 8)
L (BIT : 0)
BIT 2 L (BIT : 0) L (BIT : 0)
BIT 1 L (BIT : 0) L (BIT : 0)
BIT 0 L (BIT : 0) L (BIT : 0)
Alignment and Adjustments
4-4 Samsung Electronics
4-2-4 (A) NON-TTX MICOM (SZM-173EC) OPTION BYTE (FOR CHINA/SINGAPORE/GERMAN ARMY)
BYTE BIT LOW (0) HIGH (1) Application MICOM
B Y T E
0
D7 NOT USED MUST LOW
D6
TV : NORMAL ZOOM A/V :NORMAL ZOOM
TV: NORMAL ZOOM 16:9 A/V : NORMAL ZOOM
D5 NOT USED MUST = LOW
D4
CH Up/down functional in
the A/V Mode (SCART Jack)
CH Up/down not functional in
the A/V Mode (RCA Jack)
D3 Sound-I System Used Sound-I System Not Used
D2
D1
D0 TDA8374A TDA8842 IC201 (ONE-CHIP) OPTION
B Y T E
1
D7 TV OUT MONITOR OUT D6 English ONLY English/Chinese D5 AFT ON (always) AFT OFF (after fine tuning) BASIC = LOW
D4
Existing Sharpness level (when using the TDA6108 RGB AMP)
Sharpness level up (when using the TDA6107Q RGB AMP)
D3 No Auto Power On Auto Power On
D2
NTSC : 25KHz (NTSC TABLE
)
PAL : 50KHz (PAL TABLE)
NTSC : 25KHz (NTSC TABLE)
PAL : 27KHz (NTSC TABLE)
D1
NOT USED (D1 D0 = MUST 00)
D0
D2 D1
COLOR SYSTE M SOUND SYSTEM Re mark
0 0
CK : AUTO ( NO OSD ) B/G D/K
German Army : CS
0 1
CW : RF : AUTO PAL SECAM NT4.43
A/V : AUTO PAL SECAM NT4.43 NT3.58
B/G D/K I
1 0
CD : RF : AUTO PAL NT4.43
A/V : AUTO PAL NT4.43 NT3.58
D/K I
1 1
CS : RF:AUTO PAL SECAM NT4.43 NT3.58
A/V: AUTO PAL SECAM NT4.43 NT3.58
B/G D/K (I)
NT- M
D3 BIT
OPTION
Function Required : 1. PICTURE OFF (after 15 minutes) during no signal
2. AUDIO MUTE during no signal
3. BLUE SCREEN ON/OFF
4. TIMER CLOCK ON/OFF
5. No CHILD LOCK
Destination BYTE 0 BYTE 1
MP (Massproduction)
OPTION BYTE
China 15 D8
Singapore 57 58
German Army 57 18
→→
→→ →
MUST = LOW : China (only) 16 : 9 (Delete)
MUST = HIGH
China MP : CD
"?" "?"
"?" "?"
HIGH (For China)
MUST = HIGH
BASIC = HIGH
BASIC = HIGH
Alignment and Adjustments
Samsung Electronics 4-5
4-2-4 (B) NON-TTX MICOM (SZM-173EW/EE) OPTION BYTE (FOR EUROPE)
BYTE BIT LOW(0) HIGH(1) Remark
B Y T E
0
D7
3BAND UHF ONLY
HIGH (UK only)
D6
TV : NORMAL ZOOM A/ : NORMAL ZOOM
TV : NORMAL
ZOOM 16:9
A/V : NORMAL ZOOM
MUST = HIGH
D5 MUST LOW
POL AN D OPTIO N
- R913 : 680 added
- J901 :
D4
CH Up/down functional in the
A/V Mode (SCART Jack)
CH Up/down not functional in
the A/V Mode (RCA Jack)
MUST = LOW
D3
NOT USED MUST = LOW
D
2
D
1
D0 TDA8374A TDA8842 IC201 (ONE-CHIP) OPTION
B Y T E
1
D7
English/German/Dutch/Italian/Spnish/ Swedish/Croatian/Yugo/Greek
Western Europe
(SZM-173EW)
D6
English/Romanian/Hungarian/Polish/
Czech
/B ulgarian
Eastern Europe (SZM-173EE)
D5 AFT ON (always) AFT OFF (after fine tuning) MUST = LOW
D4
Existing sharpness level :
TDA6108
Sharpness level up : TDA6107Q MUST = HIGH
D3 No Auto Power On Auto Power On
D2
NTSC : 25 KHz (NTSC TABLE)
PAL : 50 KHz (PAL TABLE)
NTSC : 25KHz(NTSC TABLE)
PAL : 27KHz(NTSC TABLE)
- F rance/ Swiss : HIGH
- Others : L OW
D1 PAL / SECAM SECAM - L
- France/Swiss (only) : HIGH
- SZM-173EW (only)
D0 MUST : LOW
D2 D1
SOUND SYSTEM COLOR SYSTEM Destination
0 0 (?)
B/G D/K : CK MODEL
AUTO : NO OSD
Eastern Europe/France/Swiss 0 1 I ONLY ( NO OSD ) : CI,CII MDL United Kingdom 1 0 B/G ONLY (NO OSD ) : CB,CX MDL Western Europe 1 1 NOT USED
Destination BYTE 0 BYTE 1
MP OPTION
BYTE
United Kingdom C3 98
France/Swiss 41 9E
Western Europe (except UK) 45 98
Eastern Europe 41 58
P-STD Classification ( CON./BRI./SHAR ./COL )
STANDARD
MODE
DYNAMIC
MODE
MOVIE MODE MILD MODE CUSTOM MODE
90/50/50/50 100/50/75/50 90/50/75/50 60/50/50/50 90/50/50/50
Function Required: 1. PICTURE OFF (after 15 minutes) during no signal. 2. AUDIO MUTE during no
3. No BLUE SCREEN during no RF signal (Blue Screen during AV).
4. No TIMER. 5. No CHILD LOCK. 6. See "Detailed functions of CF".
→ →
→↔
signal.
MUST = HIGH
Alignment and Adjustments
4-6 Samsung Electronics
4-2-4 C) NON-TTX MICOM (SZM-173ER) OPTION BYTE (FOR RUSSIA)
Destination BYTE 0 BYTE 1
Russia,CIS 49 58
Australia 5D 18
BYTE BIT LOW(0) HIGH(1) Remark
B
Y
T E
0
D7
D6
TV : NORMAL
ZOOM
A/V : NORMAL ZOOM
TV : NORMAL ZOOM 16:9 A/V : NORMAL ZOOM
D5
D4
CH Up/down functional in the A/V Mode (SCART Jack)
CH Up/down not functional in
the A/V Model (RCA Jack)
D3 PAL-I Used PAL-I Not Used
D
2
D
1
D0 TDA8374A TDA8842 IC201 (ONE-CHIP) OPTION
B
Y
T E
1
D7 D6 English English/Russian D5 AFT ON (always) AFT OFF (after fine tuning)
D4
Existing sharpness level (when using the TDA6108 RG AMP)
Sharpness level up (when using the TDA6107Q AMP)
D3 No Auto Power On Auto Power On
D2
NTSC: 25 KHz (NTSC TABLE) PAL : 50 KHz (PAL TABLE)
NTSC : 25 KHz (NTSC TABLE) PAL : 27 KHz (NTSC TABLE)
D1 D0
Function Required : 1. PICTURE OFF (after 15 minutes) during no signal
2. AUDIO MUTE during no signal SCREEN available
4. TIMER available
5.
P-STD Classification ( CON/BRI/SHAR/COL )
STANDARD
MODE
DYNAMIC
MODE
MOVIE MODE MILD MODE CUSTOM MODE
90/50/50/50 100/50/75/50 90/50/75/50 60/50/50/50 90/50/50/50
D2 D1 SOUND SYSTEM COLOR SYSTEM
0 0 (?)
B/G D/K : CK MODEL
AUTO : NO OSD 0 1 I ONLY (NO OSD ) : CI,CII MD L 1 0 B/G ONLY (NO OSD ) : CB,CX MDL 1 1 NOT USED
→↔
3. BLUE
MUST = LOW
MUST = HIGH
MUST = LOW
MUST = HIGH
MUST = LOW
MUST = LOW
MUST = HIGH
BASIC = HIGH
NOT USED (MUST = LOW)
No CHILD LOCK
Alignment and Adjustments
Samsung Electronics 4-7
4-2-4 (D) NON-TTX MICOM (SZM-173AR/EA) OPTION BYTE (FOR MIDDLE RAST/AFRICA)
BYTE BIT LOW (0) HIGH (1) Remark
B Y
T E
0
D7
D6
TV : NORMAL ZOOM A/V : NORMAL ZOOM
TV : NORMAL ZOOM 16:9 A/V : NORMAL ZOOM
D5 NOT USED CHILD LOCK ON
D4
CH Up/down functional in the
A/V Mode (SCART Jack)
CH Up/down not functional in the
A/V Model (RCA Jack)
Middle East : HIGH
Africa : LOW
D3 Sound-I System Used Sound-I System Not Used
Middle East : HIGH
Africa : LOW
D
2
D
1
D0 TDA8374A TDA8842 IC201 (ONE-CHIP) OPTION
B Y
T E
1
D7
D6 D5 AF T ON (always) AFT OFF after fine tuning
D4
Existing sharpness level (when using the TDA6108 RGB AMP)
Sharpness level up (when using the TDA6107Q RGB AMP)
D3 No Auto Power On Auto Power On
D2
NTSC : 25 KHz ( NTSC TAB LE) PAL : 50 KHz ( PAL T AB LE)
NTSC : 25 KHz (NTSC TABLE) PAL : 27 KHz (NTSC TABLE)
D1
MUST : DO D1 = 00
D0
D2 D1 COLOR SYSTEM SOUND SYSTEM
0 0
CK : AUTO (NO OSD ) "?" B/G D/K
0 1
CW : -. RF : AUTO PAL SECAM NT4.43
-. A/V : AUTO PAL SECAM NT4.43 NT3.58
"?" B/G D/K I
1 0
CB : - RF : PAL ONLY
- A/V : AUTO PAL NT4.43 NT3.58
B/G ONLY (NO OSD)
1 1
CS : -. RF : AUTO PAL SECAM NT4.43 NT3.58
-. A/V : AUTO PAL SECAM NT4.43 NT3.58
"?" B/G D/K I
NT-
M
Destination BYTE 0 BYTE 1
MP OPTION
BYTE
Middle East (EA or AR) 7F 58
Africa (EA) 67 D8
D7 D6 LANGUAGE Remark
0 0 - NOT USED 0 1 ENG / ARAB Middle East 1 0 - NOT USED 1 1 ENG / ARAB / FRENCH EA VERSION (Africa ONLY)
Function Required : 1. PICTURE OFF (after 15 minutes) during no signal
2. AUDIO MUTE during no signal. SCREEN ON/OFF
4. TIMER (CLOCK ON/OFF)
5. C HILD L OC K ON (always)
→→
→→ →→
→→→
3. BLUE
MUST = LOW
MUST = HIGH
MUST = HIGH
MUST = HIGH
MUST = LOW
MUST = HIGH
Alignment and Adjustments
4-8 Samsung Electronics
4-2-4 (E) NON-TTX MICOM (SZM-173EV/ET) OPTION BYTE (FOR ASIA)
BYTE BIT LOW (0) HIGH (1) Remark
B Y
T E
0
D7 LINE STEREO OFF LINE STEREO ON SZM-173EV (only)
D6
TV : NORMAL ZOOM A/V : NORMAL ZOOM
TV : NORMAL ZOOM 16:9 A/V : NORMAL ZOOM
D5 MUST = LOW
D4
CH Up/down functional in the
A/V Mode (SCART Jack)
CH Up/down not functional in
the A/V Mode (RCA Jack)
D3 Sound-I System Used Sound-I System Not Used
D2
D1
D0 TDA8374A TDA8842 IC201 (ONE-CHIP) OPTION
B Y
T E
1
D7 TV OUT MONITOR OUT
D6 English ONL Y
English/Vietnamese/Indonesian/Malay SZM-173EV
English/Thai SZM-173ET D5 AFT ON (always) AFT OFF (after fine tuning) D4
D3 No Auto Power On Auto Power On
D2
NTSC : 25 KHz (NTSC TA B LE)
PAL : 50 KHz (P AL TABLE)
NTSC : 25 KHz (NTSC TABLE)
PAL : 27 KHz (NTSC TABLE) D1 D0 MUST = LOW
D2 D1
COLOR SYSTEM SOUND SYSTEM Destination
0 0
CK :AUTO (NO OSD)
"?" B/G D/K
0 1
CW : -. RF : AUTO PAL SECAM NT4.43
-. A/V : AUTO PAL SECAM NT4.43 NT3.58
"?" B/G D/K I
1 0
CB : - RF : PAL ONLY
- A/V : AUTO PAL NT4.43 NT3.58
B/G ONLY (NO OSD)
Indonesia/Thailand/ India
1 1
CS: - RF : AUTO PAL SECAM NT4.43 NT3.58
-A/V : AUTO PAL SECAM NT4.43 NT3.58
"?" B/G D/K
I
NT- M
Vietnam Malaysia
Destination BYTE 0 BYTE 1
OPTION BYTE
Vietnam/Malaysia (NO LINE STEREO) 5F 58
Vietnam (LINE STEREO MODEL) DF D8
Thailand 5D 58
Indonesia 5D 5A
India 5D 18
SZM -173ET (16K) : Z90203 WITHOUT LINE STEREO SZM -173EV (24K) : Z90234 WITH LINE STEREO
Function Required : 1. PICTURE OFF (after 15 minutes) during nosignal. 2. AUDIO MUTE during no
signal.
BLUE SCREEN ON/OFF. 4. TIMER (CLOCK ON/OFF).
5. No CHILD LOCK
→→→
3.
Existing sharpness level (when using the TDA6108 RGB AMP)
Sharpness level up (when using the TDA6107Q RGB AMP)
MUST = HIGH
CLOCK DISPLAY OFF
CLOCK DISPLAY ON Indonesia ONLY : HIGH
MUST = HIGH
BASIC = HIGH
MUST = HIGH
BASIC = HIGH
MUST = LOW
Alignment and Adjustments
Samsung Electronics 4-9
4-2-4 (F) TTX MICOM (SZM-175EA/EP) OPTION BYTE (FOR MIDDLE EAST ASIA)
BYTE BIT LOW (0) HIGH (1) Application MICOM
B Y
T E
0
D7 NOT USED ALL = LOW
D6
TV : NORMAL ZOOM 16:9 A/V : NORMAL ZOOM
TV : NORMAL ZOOM 16:9 A/V : NORMAL ZOOM 16:9
MUST = LOW
D5 NOT USED ALL = LOW
D4
CH Up/down functional in the A/V Mode (SCART Jack)
CH Up/down not functional in
the A/V Mode (RCA Jack)
Africa : SCART Others : RCA
D3 Sound-I System Used Sound-I System Not Used SOUND-I : Africa(only)
D2
D1
D0 TDA8374A T DA 8842
B Y
T E
1
D7
NOT USED ALL = LOWD6
D5
D4
Existing sharpness level
(when using the TDA6108
RGB AMP)
Sharpness level up
(when using the TDA6107Q RGB
AMP)
ALL (BASIC = HIGH)
TEST Unnecessary
D3 No Auto Power On Auto Power On ALL (BASIC = HIGH)
D2
NTSC : 25 KHz (NTSC TABLE) PAL : 50 KHz (PAL TABLE)
NTSC : 25 KHz (NTSC TABLE)
PAL : 27 KHz (NTSC TABLE)
D1
D1 D0 = MUST 00 MUST = LOW
D0
D2 D1
COLOR SYSTEM SO U N D
SY STE M Remar k
0 0 CK : AUTO (NO OSD) B/G D /K
No sound systemin the A
/V
M O D E
0 1
CW : RF : AUTO PAL SECAM NT4.43
A/V : AUTO PAL SECAM NT4.43 NT3.58
B/G D /K I
1 0
CB : RF : PAL ONLY (NO OSD)
A/V : AUTO PAL NT4.43 NT3.58
B/G O NL Y (NO O SD)
1 1
CS : RF : AUTO PAL SECAM NT4.43 NT3.58
A/V : AUTO PAL SECAM NT4.43 NT3.58
B/G D /K
I
NT M
Function Required : 1. PICTURE OFF (after 15 minutes) during no signal
2. AUDIO MUTE (during no signal)
3. No BLUE SCREEN
4. No TIMER
5. No CHILD LOCK
OSD language by micom
1. Persian (for Iran) : SPM-175EP : English/Persian (Iranian)
2. Arab (Middle East, Africa) : SPM-175EA : English/French/Arabian
MP
OPTION
BYTE
Destination Application MICOM BYTE0 BYTE1
Iran (Persian TTX) SPM-175EP 1F 18
Middle East (except Iran)
SPM-175EA
1F 18
Africa 07 18
→ →
→ →
→→
→→
→→
→→
→→
→→
→→→→
"?"
"?"
"?"
Alignment and Adjustments
4-10 Samsung Electronics
4-2-4 (G) TTX MICOM (SPM-175EE/ER/EG) OPTION BYTE (FOR EUROPE)
BYTE BIT LOW(0) HIGH(1) Remark
B Y
T E
0
D7 3 BAND UHF DNLY (UK only)
D6
TV : NORMAL ZOOM 16:9 A/V : NORMAL ZOOM
TV : NORMAL ZOOM 16:9 A/V : NORMAL ZOOM 16:9
D5
<POL AND OP TIO N>
R913 : 680 added. J901 : Delete
D4
CH Up/Down functional in the
A/V Mode (SCART Jack)
CH Up/Down not functional in
the A/V Model (RCA Jack)
MUST = LOW
D3 P-STD NORMAL P-STD MAX MUST = LOW
D2
D1
D0 TDA8374A TDA8842
B Y
T E
1
D7 NOT USED D6 PAL/SECAM SECAM - L HIGH (CF only)
D5
English/German/French/Dutch/
Italian/Spanish/Swedish
English/Croatian/Romanian/
Hungarian/Polish/Czech
This bit is only appied to
SPM-175EE
D4
Existing sharpness level (when using the TDA6108
RGB AMP)
Sharpness level up (when using the TDA6107Q AMP)
TEST Unnecessary
D3 No Auto Power On Auto Power On
D2
NTSC : 25K Hz (NTSC TAB LE) PAL : 50K Hz (PAL TAB LE)
NTSC : 25K Hz (NTSC TAB LE) PAL : 27K Hz (NT SC TAB LE)
AL L (R F V O L . C UR V E
)
BASIC :LOW D1 MUST = LOW D0 MUST = LOW
D2 D1
SOUND SYSTEM COLOR SYSTEM Remark
0 0 (?)
B/G D/K : CK MODEL
AUTO
(NO OSD)
No SOUND SYSTEM
in the A/V Mode
0 1 I ONLY (NO OSD) : CI,CII MODEL 1 0 B/G ONLY (NO OSD): CB,CX MODEL 1 1 NOT USED
Destination Application MICOM BYTE 0 BYTE 1 LANGUAGE
MP
OPTION
BYTE
United Kingdom
SPM-175EE
83 18
See BYTE 1 D5
Other Western Europe 05 18
Eastern Europe 01 38
France/Swiss SPM-175E 01 5C Yugo/Greece SPM-175EG 05 18 English/Yugo/Greek
Russia/Bulgaria SPM-175ER 01 18 English/Russian/Bulgarian
P-STD Classification (CON/BRI/SHRP/COL)
D3 BIT STANDARD MODE DYNAMIC MODE MOVIE MODE MILD MODE CUSTOM MODE
0 90/50/50/50 100/50/50/50 75/55/50/50 60/50/50/50 90/55/25/50
Function Required :1. PICTURE OFF (after 15 minutes) during no signal. 2. AUDIO MUTE (during no
3. No BLUE SCREEN. 4. No TIMER (CLOCK /OFF). 5. No CHILD LOCK
W
→↔
signal).
MUST = LOW
ALL = LOW
ALL BASIC = HIGH
ALL BASIC = HIGH
4-3 Other Adjustments
4-3-1 General
1. Usually, a color TV needs only slight touch­up adjustment upon installation. Check the basic characteristics such as height, horizontal and vertical sync and focus.
2. The picture should have good black and white details. There should be no objectionable color shading; if color shading is present, per­form the 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.
4-3-2 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 has been moved or turned in a different direc­tion, disconnect its AC power for at least 30 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 removing power.
4-2-5 RESET
The Reset Mode is used during factory inspection. Function Reset:
1. Channels Add/Erase
2. Sort Non
3. System Auto
4. Timer off
5. Blue Screen off
6. Child Lock off
7. Picture standard
8. Volume 10
9. CH. Skip Erased
Alignment and Adjustments
Samsung Electronics 4-11
4-3-3 High Voltage Check
CAUTION: There is no high voltage adjustment on this chassis. The B+ power supply must be set to +125 volts (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. The high voltage should not exceed 27.5KV.
4. Adjust the Brightness and contrast controls to
both extremes. Ensure that the high voltage does not exceed 27.5KV under any conditions.
4-3-4 FOCUS Adjustment
1. Input a black and white signal.
2. Adjust the tuning control for the clearest pic-
ture.
3. Adjust the FOCUS control for well defined
scanning lines in the center area of the screen.
4-3-5 Cathode Voltage Adjustment
(Screen Adjustment)
1. Connect CRT socket pin GK to an oscilloscope
probe.
2. Input a gray scale pattern. (Use a pattern gen-
erator, PM5518)
3. Use the P mode key (on the remote control)
for the STANDARD picture.
4. Adjust the Screen VR (on the FBT) so that the
voltage on the oscilloscope becomes 130+2.5V (See Fig. 4-1).
4-3-6 Purity Adjustment
1. Warm up the receiver for at least 20 minutes.
2. Plug in the CRT deflection yoke and tighten the clamp screw.
3. Plug the convergence yoke into the CRT and set in as shown in Fig. 4-2.
4. Input a black and white signal.
5. Fully demagnetize the receiver by applying an external degaussing coil.
6. Turn the CONTRAST and BRIGHTNESS con­trols to maximum.
7. Loosen the clamp screw holding the yoke. Slide the yoke backward or forward to pro­vide vertical green belt. (Fig. 4-3).
8. Tighten the convergence yoke.
9. Slowly move the deflection yoke forward, and adjust for the best overall green screen.
10. Temporarily tighten the deflection yoke.
11. Produce blue and red rasters by adjusting the low-light controls. Check for good purity in each field.
12. Tighten the deflection yoke.
Alignment and Adjustments
4-12 Samsung Electronics
Fig. 4-1
130 2.5V
+
_
GND
14, 16" :120 2.5V 20, 21" : 130 2.5V
+
_
+
_
_
4-3-7 White Balance Adjustment
Alignment and Adjustments
Samsung Electronics 4-13
Fig. 4-2 Convergence Magnet Assembly
4 Pole Magnet
6 Pole Magnet
2 Pole Magnet
Clamper
Screw
2 POLE PURITY
YOKE CLAMP SCREW
6 POLE
CONVERGENCE 4 POLE CONVERGENCE
ADJUST THE ANGL (VERTICAL LINES)
Fig. 4-3 Center Convergence Adjustment
31m/m
Vertical Green Belt
Fig. 4-4
1
2
(a) Set up
1. Warm up the TV for at least 30 minutes in the Aging Mode (OSD White). This mode is dis­played by entering the following sequence:
SLEEP FACTORY FACTORY
2. Input a Toshiba pattern.
(b) Low-Light Adjustment
1. Set SBT to 1.3 ± 0.2 fL in the Factory Service Mode with using CA100. See Fig. 4-4 .
2. Adjust RG,BG so that the levels are suitable to each local area.
(c) High-Light Adjustment
1. Set SCT to 55 FL (20”. 21”), 65 FL(14”.16”) in the Factory Service Mode with using CA100. See Fig. 4-4 .
4-3-8 Center Convergence Adjustment
1. Warm up the receiver for at least 20 minutes.
2. Adjust the two tabs of the 4 pole magnets to change the angle between them. Superimpose the red and blue vertical lines in the center area of the screen.
3. Adjust the Brightness and Contrast controls for a well defined picture.
4. Adjust the two-tab pairs of the 4 pole mag­nets, and change the angle between them. Superimpose the red and the blue vertical lines in the center area of the screen.
5. Turn the both tabs at the same time, keeping the angle constant, and superimpose the red and blue horizontal line in the center of the screen.
6. Adjust the two-tab pairs of the 6-pole magnets to superimpose the red and blue line onto the green. (Changing the angle affects the vertical lines, and rotating both magnets affects the horizontal lines.)
7. Repeat adjustments 2~6, if necessary.
8. Since the 4-pole magnets and 6-pole magnets
interact, the dot movement is complex (Fig. 4-5).
Alignment and Adjustments
4-14 Samsung Electronics
4-3-9 VCO Adjustment
Fig. 4-5 Center Convergence Adjustment
RED
BLUE
BLUE
RED
4-Pole Magnet Movement
GREEN
RED/BLUE
RED/BLUE
GREEN
6-Pole Magnet Movement
Set the vco data to 80 (Factory Mode). NOTE : For SZM-173EW and SPM-175E (Western Europe remote control), set the VCO data to 1.
4-3-10 RF AGC Adjustment
Set the AGC data to 14 (Factory Mode).
4-3-11 Sub-Color Adjustment
Set SCR data to 10 (Factory Mode).
4-3-12 Geometry Adjustment
SC →PVAPVSPSL PHS
1. Input a lion head pattern (in the PAL channel).
2. Set the SC (S-Correction) as follows : 12 (21”), 10 (20”), 0 (14”,16”) and PVA 40 so that the lion head circle becomes oval.
3. Adjust with PVS (Vertical shift) so that the top margin of the picture is 4.
Fig. 4-7
4. Adjust with PSL (Vertical-Slope) so that the bottom margin of the picture is 4.
Fig. 4-8
5. Adjust with PHS (Horizontal Shift) so that the lion-head pattern and CRT centers are aligned.
Fig. 4-9
6. Adjust PHS (using the width coil) so that the left and right margins of the picture are 5.
Alignment and Adjustments
Samsung Electronics 4-15
4
5
5
4
MEMO
4-16 Samsung Electronics
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