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Alignment and Adjustments
4. Alignment and Adjustments
4-1 Preadjustment
4-1-1 Factory Mode
1. Do not attempt these adjustments in the Video Mode. 2. The Factory Mode adjustments are necessary when either the EEPROM (IC902) or the CRT is replaced. 3. Do not tamper with the "Adjustment" screen of the Factory Mode menu. This screen is intended only for factory use.
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 PVA to 45 (factory mode) and set SC as follows. 14, 16 inch : 0 20 inch : 10 21 inch : 12
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.
4-2 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) SLEEPFACTORY. (2) STAND-BY DISPLAY P.STD MUTE 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 (v ,w). 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.
Samsung Electronics
4-1
Alignment and Adjustments
4-2-2 Main Adjustment Parameter
Table 4-1 Main Adjustment Parameter (Zilog, Phlips µ-com) FUNCTION AUTO GAIN CONTROL VOLTAGE CONTROL OSCILLATOR SUB BRIGHT SUB CONTRAST SUB COLOR S-CORRECTION RED DRIVE GAIN GREEN DRIVE GAIN BLUE DRIVE GAIN CATHODE DRIVE LEVEL BLUE STRETCH MODE PAL VERTICAL SLOPE PAL VERTICAL SHIFT PAL VERTICAL AMPLITUDE PAL HORIZONTAL SHIFT NTSC SUB COLOR SUB TINT TTX SUB-CONTRAST OSD ABBREVIATION AGC VCO SBT SCT SCR SC RG GG BG CDL BLU PSL PVS PVA PHS NSR STT TSS RANGE 0 ~ 63 STEP INITIAL DATA 10 REMARK
0 ~ 128 STEP 80 0 ~ 1 STEP 1 (For East Europe) 0 ~ 23 STEP 0 ~ 23 STEP 0 ~ 23 STEP 0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 7 STEP 0 ~ 3 STEP 0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 23 STEP 1 ~ 13 STEP 0 ~ 63 STEP 8 10 10 12 47 32 34 4 0 32 32 42 40 7 0 16 (Only TTX Model) TDA8842 TDA8841
NOTE : PVS,PVA, PHS, parameters must be aligned using the 50Hz vertical-field rates.
4-2
Samsung Electronics
Alignment and Adjustments
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 (v ,w) while the Service Mode is on. The cursor will move to the test pattern. Press the VOLUME keys. On-screen display:
· WHITE · AGING
NON -TTX MICOM ONLY TTX MICOM
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:
SYSTEM OSD DISPLAY BYTE 0 : 8 BYTE 1 : 0
BIT 6 L (BIT :0)
BIT 5 L (BIT : 0)
BIT 4 L (BIT : 0) L (BIT : 0)
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)
TDA8842, CK SYSTEM, RCA JACK SYSTEM OSD DISPLAY BYTE 0 : 11 L (BIT : 1) H (BIT : 0) L (BIT : 0) H (BIT : 0) L (BIT : 1)
Samsung Electronics
4-3
Alignment and Adjustments
4-2-4 (A) NON-TTX MICOM (SZM-173EC) OPTION BYTE (FOR CHINA/SINGAPORE/GERMAN ARMY)
Destination China MP (Massproduction) OPTION BYTE Singapore German Army BYTE BIT D7 D6 D5 D4 D3 CH Up/down functional in the A/V Mode (SCART Jack) Sound-I System D2 D1 0 0 D2 0 1 D1 1 D0 D7 D6 D5 B Y T E 1 D2 D3 No Auto Power On NT SC : 25K H z (NTSC TABLE) P A L : 50K H z (PA L TABLE) Auto Power On NTSC : 25KHz (NTSC TABLE) PAL : 27KHz (NTSC TABLE) 1 1 0 Used TV : NORMAL ZOOM A/V :NORMAL ZOOM LOW (0) NOT USED TV: NORMAL ZOOM 16:9 A/V : NORMAL ZOOM NOT USED CH Up/down not functional in the A/V Mode (RCA Jack) Sound-I System Not Used SOUND SYSTEM "?" B/G D/K "?" B/G D/K I "?" D/K I Remark HIGH (1) BYTE 0 15 57 57 BYTE 1 D8 58 18 Application MICOM MUST LOW MUST = LOW : China (only) 16 : 9 (Delete) MUST = LOW MUST = HIGH
B Y T E 0
COLO R SYSTEM CK : AUTO ( NO OSD ) CW : RF : AUTO PAL SECAM NT4.43 A/V : AUTO PAL SECAM NT4.43 NT3.58 CD : RF : AUTO PAL NT4.43 A/V : AUTO PAL NT4.43 NT3.58 CS : RF: AUTO PAL SECAM NT4.43 NT3.58 A/V: AUTO PAL SECAM NT4.43 NT3.58 TDA8374A TV OUT English ONLY TDA8842 MONITOR OUT English/Chinese AFT OFF (after fine tuning) Sharpness level up (when using the TDA6107Q RGB AMP)
China MP : CD German Army : CS D3 BIT OPTION
"?" B/GD/K (I) NT- M
IC201 (ONE-CHIP) OPTION HIGH (For China) MUST = HIGH BASIC = LOW
AFT ON (always) Existing Sharpness level
D4
(when using the TDA6108 RGB AMP)
BASIC = HIGH
BASIC = HIGH
D1 NOT USED (D1 D0 = MUST 00) D0 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
4-4
Samsung Electronics
Alignment and Adjustments
4-2-4 (B) NON-TTX MICOM (SZM-173EW/EE) OPTION BYTE (FOR EUROPE)
Destination United Kingdom MP OPTION BYTE France/Swiss Western Europe (except UK) Eastern Europe BYTE BIT D7 D6 LOW(0) 3 BAND TV : NORMAL A/ : NORMAL ZOOM ZOOM HIGH(1) UHF ONLY BYTE 0 C3 45 45 41 BYTE 1 98 9E 98 58 Remark HIGH (UK only) MUST = HIGH POLAND OPTION D5 MUST LOW - R 913 : 680 added - J901 : D4 D3 D 2 D 1 D0
D2 0 0 1 1 D1 0 1 0 1 "?"
ZOOM 16:9 A/V : NORMAL ZOOM
TV : NORMAL
B Y T E 0
delete MUST = LOW MUST = LOW
CH Up/down functional in the A/V Mode (SCART Jack)
CH Up/down not functional in the A/V Mode NOT USED (RCA Jack)
SOUND SYSTEM
COLO R SYSTEM : CK MODEL AUTO : NO OSD
Destination Eastern Europe/France/Swiss United Kingdom
B/G
D/K
I ONLY
( NO OSD ) : CI,CII MDL
B/G ONLY (NO OSD ) : CB,CX MDL NOT USED
Western Europe
TDA8374A
TDA8842 English/German/Dutch/Italian/Spnish/
IC201 (ONE-CHIP) OPTION W ester n E urope (SZM-173EW) Eastern Europe (SZM-173EE) MUST = LOW MUST = HIGH MUST = HIGH - F rance/ Swiss : H IG H - O ther s : L O W - France/Swiss (only) : HIGH - SZM-173EW (only)
D7 D6 D5 D4 D3 D2 AFT ON (always) Existing sharpness level : TDA6108 No Auto Power On NTSC : 25 KHz (NTSC TABLE) PAL : 50 KHz (PAL TABLE) PAL / SECAM
Swedish/Croatian/Yugo/Greek/French E nglish/R om anian/H ungarian/Polish/ C zec h /B ulgarian AFT OFF (after fine tuning) Sharpness level up : TDA6107Q Auto Power On NTSC : 25KHz(NTSC TABLE) PAL : 27KHz(NTSC TABLE) SECAM - L MUST : LOW
B Y T E 1
D1 D0
P-STD Classification ( CON./BRI./SHAR./COL ) STANDARD MODE 90/50/50/50 DYNAMIC MODE 100/50/75/50 MOVIE MODE 90/50/75/50 MILD MODE 60/50/50/50 CUSTOM MODE 90/50/50/50
Function Required: 1. PICTURE OFF (after 15 minutes) during no signal. 2. AUDIO MUTE during no signal. 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".
Samsung Electronics
4-5
Alignment and Adjustments
4-2-4 C) NON-TTX MICOM (SZM-173ER) OPTION BYTE (FOR RUSSIA)
Destination Russia,CIS Australia India (CB MONO MODEL)
BYTE BIT D7 D6 D5 TV : NORMAL LOW(0)
BYTE 0 49 5D 5D
HIGH(1)
BYTE 1 58 18 38
Remark MUST = LOW
A/V : NORMAL
ZOOM ZOOM
TV : NORMAL ZOOM 16:9 A/V : NORMAL ZOOM
MUST = HIGH MUST = LOW
B Y T E 0
D4 D3 D 2 D 1 D0 D7 D6 D5
CH Up/down functional in the A/V Mode (SCART Jack) PAL-I Used
D2 0 0 1 1 D1 0 1 0 1 "?" SOUND SYSTEM
CH Up/down not functional in the A/V Model (RCA Jack) PAL-I Not Used
COLO R SYSTEM AUTO : NO OSD
MUST = HIGH
B/G
D/K
: CK MODEL
I ONLY
(NO OSD ) : CI,CII MDL
B/G ONLY (NO OSD ) : CB,CX MDL NOT USED
TDA8374A
TDA8842
IC201 (ONE-CHIP) OPTION MUST = LOW
English AFT ON (always) Existing sharpness level
English/Russian AFT OFF (after fine tuning) Sharpness level up (when using the TDA6107Q AMP) Auto Power On NTSC : 25 KHz (NTSC TABLE) PAL : 27 KHz (NTSC TABLE) BASIC = LOW ( India HIGH )
B Y T E 1
D4
(when using the TDA6108 RGB AMP) No Auto Power On NTSC: 25 KHz (NTSC TABLE) PAL : 50 KHz (PAL TABLE)
MUST = HIGH
D3 D2 D1 D0
BASIC = HIGH
NOT USED (MUST = LOW)
P-STD Classification ( CON/BRI/SHAR/COL ) STANDARD MODE 90/50/50/50 DYNAMIC MODE 100/50/75/50 MOVIE MODE 90/50/75/50 MILD MODE 60/50/50/50 CUSTOM MODE 90/50/50/50
Function Required : 1. PICTURE OFF (after 15 minutes) during no signal 2. 3. 4. 5. AUDIO MUTE during no signal BLUE SCREEN available TIMER available No CHILD LOCK
4-6
Samsung Electronics
Alignment and Adjustments
4-2-4 (D) NON-TTX MICOM (SZM-173AR/EA) OPTION BYTE (FOR MIDDLE EAST/AFRICA)
Destination MP OPTION BYTE BYTE BIT D7 D6 D5 D4 TV : NORMAL A/V : NORMAL NOT USED CH Up/down functional in the A/V Mode (SCART Jack) Sound-I System Used
D2 0 0 D1 0 1 CK : AUTO (NO OSD ) CW : -. RF : AUTO
BYTE 0 7F 67 HIGH (1)
BYTE 1 58 D8 Remark MUST = LOW
Middle East (EA or AR) Africa (EA) LOW (0)
ZOOM ZOOM
TV : NORMAL ZOOM 16:9 A/V : NORMAL ZOOM CHILD LOCK ON CH Up/down not functional in the A/V Model (RCA Jack) Sound-I System Not Used
COLOR SYSTEM "?" PAL
MUST = HIGH MUST = HIGH Middle East : HIGH Africa : LOW Middle East : HIGH Africa : LOW
SOUND SYSTEM
B Y T E 0
D3
D 2
B/G
D/K D/K
-. A/V : AUTO CB : - RF
SECAM PAL SECAM
NT4.43 NT4.43
NT3.58
"?" B/G
I
1
0
: PAL ONLY
D 1
- A/V : AUTO CS : -. RF :
1
1
-. A/V :
PAL NT4.43 NT3.58 AUTO PAL SECAM AUTO PAL SECAM
TDA8842
LANGUAGE ENG / ARAB -
B/G ONLY (NO OSD) NT4.43 NT4.43
NT3.58 NT3.58
"?" B/G
NT- M
D/K
I
D0
TDA8374A
D7 D6 0 1 0 1
IC201 (ONE-CHIP) OPTION
Remark NOT USED Middle East NOT USED
D7
0 0 1
D6
1
ENG / ARAB /
FRENCH
EA VERSION (Africa ONLY)
B Y T E 1
D5 D4 D3 D2 D1
AFT ON (always) Existing sharpness level (when using the TDA6108 RGB AMP) No Auto Power On NT SC : 25 KH z ( NTSC T A B L E ) P A L : 50 KH z ( PAL T A B L E )
AFT OFF after fine tuning Sharpness level up (when using the TDA6107Q RGB AMP) Auto Power On NTSC : 25 KHz (NTSC TABLE) PAL : 27 KHz (NTSC TABLE)
MUST = LOW MUST = HIGH MUST = HIGH
MUST : DO D1 = 00 D0 Function Required : 1. 2. 3. 4. 5. PICTURE OFF (after 15 minutes) during no signal AUDIO MUTE during no signal. BLUE SCREEN ON/OFF TIMER (CLOCK ON/OFF) CHILD LOCK ON (always)
Samsung Electronics
4-7
Alignment and Adjustments
4-2-4 (E) NON-TTX MICOM (SZM-173EV/ET) OPTION BYTE (FOR ASIA)
DESTINATION
LINE-STREEO BYTE 0 BYTE 1 D8 DA _ DD DF B8 B8
MONO(TV-OUT) BYTE 0 5F 5D 5D _ 5F HIGH (1) LINE STEREO ON BYTE 1 58 5A 58 _ 38
MONO(MONO-OUT) BYTE 0 5F 5D 5D _ 5F Remark SZM-173EV (only) BYTE 1 D8 DA D8 _ B8
OPTION BYTE
Vietnam / Malaysia Indonesia (CB MODEL CLOCK ON) Thailand (CB MODEL) India (CB MODEL AFT OFF) India (CS MODEL AFT OFF)
DF DD
BYTE
BIT D7 D6 D5 D4
LOW (0) LINE STEREO OFF TV : NORMAL A/V : NORMAL ZOOM ZOOM
TV : NORMAL A/V : NORMAL
ZOOM 16:9 ZOOM
MUST = HIGH
MUST = LOW
CH Up/down functional in the A/V Mode (SCART Jack) Sound-I System Used
D2 D1 0 1 CK :AUTO (NO CW : -. RF : AUTO
CH Up/down not functional in the A/V Mode (RCA Jack)
BASIC = HIGH MUST = HIGH
SOUND SYSTEM "?" B/G D/K "?" B/G D/K Destination
B Y T E 0
D3
Sound-I System Not Used
COLO R SYSTEM OSD)
D2
0 0
-. A/V : AUTO
PAL SECAM NT4.43 PAL SECAM NT4.43 NT3.58
I
Indonesia/Thailand/ India Vietnam Malaysia
1
0
CB : - RF : PAL ONLY
D1
1 1 CS:
PAL NT4.43 NT3.58 - RF : AUTO PAL SECAM NT4.43 NT3.58 -A/V : AUTO PAL SECAM NT4.43 NT3.58
- A/V : AUTO
B/G ONLY (NO OSD) "?" B/G D/K I NT- M
D0 D7 D6
TDA8374A TV OUT E nglish O NL Y
TDA8842 MONITOR OUT E nglish/V ietnamese/Indonesian/M alay English/Thai
IC201 (ONE-CHIP) OPTION
SZM-173EV SZM-173ET
B Y T E 1
D5 D4 D3 D2 D1 D0
AFT ON (always)
AFT OFF (after fine tuning) using the MUST = HIGH BASIC = HIGH MUST = LOW Indonesia ONLY : HIGH
Existing sharpness level Sharpness level up (when (when using the TDA6108 RGB AMP) TDA6107Q RGB AMP) No Auto Power On NTSC : 25KHz (NTSC TABLE) PAL : 50KHz (PAL TABLE) CLOCK DISPLAY OFF Auto Power On
NTSC : 25KHz (NTSC TABLE) PAL : 27KHz (PAL TABLE) CLOCK DISPLAY ON MUST = LOW
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 SZM -173ET (16K) : Z90203 SZM -173EV (24K) : Z90234
WITHOUT LINE STEREO WITH LINE STEREO
4-8
Samsung Electronics
Alignment and Adjustments
4-2-4 (F) TTX MICOM (SZM-175EA/EP) OPTION BYTE (FOR MIDDLE EAST ASIA)
Destination MP OPTION BYTE Iran (Persian Middle East TTX) Application MICOM SPM-175EP SPM-175EA HIGH (1) NOT USED TV : NORMAL ZOOM 16:9 A/V : NORMAL ZOOM NOT USED CH Up/down functional in the A/V Mode (SCART Jack) Sound-I System Used
D2 D1 0 1
BYTE0 1F 1F 07
BYTE1 1B 1B 1B Application MICOM ALL = LOW
(except Iran)
Africa BYTE BIT D7 D6 D5 D4 D3 LOW (0)
TV : NORMAL A/V : NORMAL
ZOOM 16:9 ZOOM 16:9
MUST = LOW ALL = LOW
CH Up/down not functional in the A/V Mode (RCA Jack)
B Y T E 0
- Africa : SCART - Others : RCA
SOUND-I : Africa (only)
S O U N D S Y ST E M R emar k
Sound-I System Not Used
COLOR SYSTEM
D2
0 0
CK : AUTO (NO OSD) CW : RF : AUTO
"?"
B /G D /K D /K I
N o sou nd sy stem in the A/V
A/V : AUTO CB :
PAL SECAM NT4.43 PAL SECAM NT4.43 NT3.58
"?" B /G
1
0
RF : PAL ONLY (NO OSD) A/V : AUTO
D1
1 1
CS :
RF : A/V :
PAL NT4.43 NT3.58 AUTO PAL SECAM NT4.43 NT3.58 AUTO PAL SECAM NT4.43 NT3.58
T D A 8842
B /G O N L Y ( N O O S D) "?"
MODE
B /G D /K I NT M
D0 D7 D6 D5
TDA8374A
NOT USED
ALL (FIX = LOW)
B Y T E 1
Existing sharpness D4 RGB AMP) D3 D2 D1 D0 No Auto Power On
level
Sharpness level up (when using the TDA6107Q RGB AMP) Auto Power On NTSC : 25 KHz (NTSC TABLE) PAL : 27 KHz (NTSC TABLE) 01 D/K 10 I 11 ?
(when using the TDA6108
ALL (BASIC = HIGH)
TEST Unnecessary
ALL (BASIC = HIGH)
NTSC : 25 KHz (NTSC TABLE) PAL : 50 KHz (PAL TABLE) 00 B/G
D1 D0
MUST = HIGH
OSD language by micom 1. Persian (for Iran) : SPM-175EP : English/Persian (Iranian) 2. Arab (Middle East, Africa) : SPM-175EA : English/French/Arabian Function Required : 1. 2. 3. 4. 5. PICTURE OFF (after 15 minutes) during no signal AUDIO MUTE (during no signal) No BLUE SCREEN No TIMER No CHILD LOCK
Samsung Electronics
4-9
Alignment and Adjustments
4-2-4 (G) TTX MICOM (SPM-175EE/ER/EG) OPTION BYTE (FOR EUROPE)
Destination United Kingdom (CI) Other Western Europe (CB) MP OPTION BYTE Eastern Europe (CK) Ireland (CII) France/Swiss Yugo/Greece Russia/Bulgaria BYTE BIT D7 D6 LOW(0) 3 BAND TV : NORMAL A/V : NORMAL SPM-175EU SPM-175EG SPM-175ER HIGH(1) UHF DNLY (UK only) ZOOM 16:9 ZOOM TV : NORMAL A/V : NORMAL SPM-175EE Application MICOM BYTE 0 83 05 01 03 05 05 01 BYTE 1 18 18 38 18 5C 18 19 English/Yugo/Greek English/Russian/Bulgarian Remark See BYTE 1 D5 LANGUAGE
ZOOM ZOOM
16:9 16:9
D5
MUST = LOW CH Up/Down functional in the A/V Mode (SCART Jack) P-STD NORMAL
D2 0 0 D1 0 1 0 1 "?" SOUND SYSTE M
< P O L A N D O P TIO N > R 913 : 680 added. CH Up/Down not functional in the A/V Model (RCA Jack) J901 : D elete MUST = LOW MUST = LOW
Remark
B Y T E 0
D4 D3 D2
P-STD MAX
COL O R SYSTE M
B/G
D/K
: CK MODEL AUTO (NO OSD) No SOUND SYSTEM in the A/V Mode
I ONLY (NO OSD) : CI,CII MODEL B/G ONLY (NO OSD): CB,CX MODEL NOT USED
D1
1 1
D0 D7 D6 D5
TDA8374A NOT USED PAL/SECAM E nglish/G er m an/F rench/D utch/ Italian/Spanish/Swedish Existing sharpness level
TDA8842 FIX = LOW SECAM - L English/Croatian/Romanian/ Hungarian/Polish/Czech Sharpness level up (when using the TDA6107Q AMP) HIGH (CF only) This bit is only appied to
SPM-175EE ALL BASIC = HIGH
B Y T E 1
D4
(when using the TDA6108 RGB AMP) No Auto Power On N T SC : 25K H z (N T SC T A B L E ) P A L : 50K H z (P A L T A B L E )
TEST Unnecessary
ALL BASIC = HIGH ALL (RF VOL. CURVE) BASIC = LOW
D3 D2 D1 D0
Auto Power On N T SC : 25K H z (N T SC T A B L E ) P A L : 27K H z (N T SC T A B L E )
MUST = LOW B/G D/K 175ER is only applied (Others = LOW)
P-STD Classification (CON/BRI/SHRP/COL) D3 BIT 0 STANDARD MODE 90/50/50/50 DYNAMIC MODE 100/50/50/50 MOVIE MODE 75/55/50/50 MILD MODE 60/50/50/50 CUSTOM MODE 90/55/25/50
Function Required :1. PICTURE OFF (after 15 minutes) during no signal. 2. AUDIO MUTE (during no signal). 3. No BLUE SCREEN. 4. No TIMER (CLOCK /OFF). 5. No CHILD LOCK
4-10
Samsung Electronics
Alignment and Adjustments
4-2-5 RESET
The Reset Mode is used during factory inspection. Function Reset: 1. 2. 3. 4. 5. 6. 7. 8. 9. Channels Sort System Timer Blue Screen Child Lock Picture Volume CH. Skip Add/Erase Non Auto off off off standard 10 Erased
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.
Samsung Electronics
4-11
Alignment and Adjustments
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).
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.
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 picture. 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 generator, 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).
_ 130 + 2.5V
GND
_ 14, 16" :120 + 2.5V + 20, 21" : 130 _ 2.5V
Fig. 4-1 4-12 Samsung Electronics
Alignment and Adjustments
4 Pole Magnet 6 Pole Magnet Clamper Screw 2 Pole Magnet
2 POLE PURITY
ADJUST THE ANGL (VERTICAL LINES)
YOKE CLAMP SCREW 6 POLE CONVERGENCE 4 POLE CONVERGENCE
Fig. 4-2 Convergence Magnet Assembly
Vertical Green Belt
31m/m
Fig. 4-3 Center Convergence Adjustment
4-3-7 White Balance Adjustment
(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. 2 (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 . 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 x. Samsung Electronics 4-13
1
Alignment and Adjustments
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).
BLUE
RED
RED/BLUE
GREEN
BLUE RED
RED/BLUE GREEN
4-Pole Magnet Movement
6-Pole Magnet Movement
Fig. 4-5 Center Convergence Adjustment
4-3-9 VCO Adjustment
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.
4-14
Samsung Electronics
Alignment and Adjustments
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).
5 5
4-3-12 Geometry Adjustment
SC PVAPVS PSL 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. 4-9 6. Adjust PHS (using the width coil) so that the left and right margins of the picture are 5.
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Fig. 4-7 4. Adjust with PSL (Vertical-Slope) so that the bottom margin of the picture is 4.
4
Fig. 4-8 5. Adjust with PHS (Horizontal Shift) so that the lion-head pattern and CRT centers are aligned.
Samsung Electronics
4-15
MEMO
4-16
Samsung Electronics