2. Alignment and Adjustments

Transcription

1 Alignment and ments 2. Alignment and ments 2- General Alignment Instructions. 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.. 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.. 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 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 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 High Voltage Check CAUTION : There is no high voltage adjustment on this chassis. The B+ power supply should be +5 volts (with full color- bar input and normal picture level).. 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).. the Brightness and contrast controls to both extremes. Ensure that the high voltage does not exceed KV under any conditions. Samsung Electronics 2-

2 Alignment and ments 2-4 FOCUS ment. Iput a crosshatch pattern. 2. the tuning control for the clearest picture.. the FOCUS control for well defined scanning lines in the center area of the screen. 2-5 SCREEN ment. Input Toshiba Pattern If a Toshiba pattern is not available, Enter Service Mode and select Test pattern 2 (Toshiba pattern) 2. Enter Service Mode.. Select G2-. ex) IBRM = 5 WDRV = CDL = 25 COLR G B = 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) 2-6 White Balance ment. Warm up the TV set for at least minutes. 2. Enter the Service Mode by pressing the remote control keys in the following sequence: Power Off Info Menu Mute Power On. Initialize all set data. 4. Input a Toshiba pattern. 5. Using a probe(ca), do the White Balance adjustments. () Low-Light. - Sub Brightness to set Y. - B Cutoff to set y. - R Cutoff to set x. (2) High-Light. - Sub Contrast to set Y. - B Drive to set y. - R Drive to set x. () Check the value of Low-Light. If necessary, readjust Low-Light. (4) Check the value of High-Light. If necessary, readjust High-Light. 2-2 Samsung Electronics

3 Alignment and ments 2- When adjusting Screen Voltage and White Balance. Screen Voltage and White Balance are related each other. Make sure both adjustments are correct. 2. Screen Voltage before White Balance ments. Make sure Screen Voltage is correct.. 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. 2-8 Factory ment 2-8- Service Mode. To enter the Service Mode, Press the remote-control keys in this sequence : - If you do not have Factory remote-control PICTURE OFF INFO ( ) MENU MUTE PICTURE ON - If you have Factory remote-control PICTURE ON ( ) FACTORY INFO Samsung Electronics 2

4 Alignment and ments Factoy Mode OSD 2-8-2(A) ADJUST SERVICE / T - ETPAS - XX Deflection Video Video 2 Video Option : D YC Delay Test Pattern : EEPROM Bus Stop Check Sum : Reset / 24-8 G2 Adujust 2-4 Samsung Electronics

5 Alignment and ments DEFLECTION : PAL Item Min Max ET G/R Remark V Amp 24 2 V Shift 5-59 H EW 25 5 H Shift V Linearity V SC 4 4 (Depend on the inch) H Parabolra 62 8 Upper Corner -5-9 Lower Corner -5 9 Upper Corner 6-4 (Depend on the inch) Lower Corner 6-4 (Depend on the inch) H Trapezium Bow Angle -2 EHT Time 2 2 (Depend on the inch&crt Drive) EHT Threshold (Depend on the inch&crt Drive) EHT Vertical -2-2 (Depend on the inch&crt Drive) EHT Horizontal 5 5 (Depend on the inch&crt Drive) EHT Vertical (Depend on the inch&crt Drive) EHT Horizontal2 (Depend on the inch&crt Drive) Samsung Electronics 2-5

6 Alignment and ments DEFLECTION : NTSC OFFSET Item Min Max ET G/R Remark V Amp -2-2 V Shift 6 6 H EW H Shift V Linearity V SC H Parabolra Upper Corner Lower Corner Upper Corner 6 Lower Corner 6 H Trapezium Bow Angle 2-6 Samsung Electronics

7 Alignment and ments Video Item Min Max ET G/R Remark R Cutoff G Cutoff B Cutoff R Drive G Drive B Drive Sub Bright 5 5 Sub Contrast Sub Color 2 2 (Depend on the country&crt Drive) Sub Tint AKB Option BCL Threshold 6 22 (Depend on the inch) BCL Gain BCL Time Sub Sharpness 8 (Depend on the inch&crt Drive) DVD R Cutoff Inch(Depend on the CRT) DVD B Cutoff Inch(Depend on the CRT) BCL BCUT Pilot Low(NTSC ONLY) - - Pilot High(NTSC ONLY) - - V-Mute(Xms,NTSC ONLY - - Samsung Electronics 2-

8 Alignment and ments Video 2 Item Min Max ET G/R Remark VSU 2 2 Melody Volume 2 HB Start 9 9 HB Stop 9 9 RF AGC 4 (Depend the Tuner) VM Gain 6 6 (Depend on the CRT Drive AMP) VM Delay 4 (Depend on the CRT Drive AMP) V_Peaking 6 BLE Tilt 6 BLE Gain BLE Mode 2 BLE Break CTI Gain (Depend on the mode) CTI Coring (Depend on the mode) LTI Gain (Depend on the mode) D-EHT Time 5 (Depend on the mode) DCT Ratio 5 LTI Enable VSP Comb 2-8 Samsung Electronics

9 Alignment and ments Video Item Min Max ET G/R Remark NR Off Value Gamma Mode Gamma Correction 5 BST StartPoint 4 4 BST GAIN(B) 5 5 DPWL Gain DPWL Start PIP Contrast PIP Tint PIP Color PIP PAL V.Pos PIP NTSC V.Pos 2 2 PIP H.Pos 9 9 PIP R Cutoff 5 5 (Depend on the CRT) PIP B Cutoff 4 4 (Depend on the CRT) PIP R Drive (Depend on the CRT) PIP B Drive (Depend on the CRT) Samsung Electronics 2-9

10 Alignment and ments Option NO. ITEM Initial CS29M6PQ CS25M2EQ CS29M2EQ Asia Version Singapore Cis TSE REMARK System CS CS CS CS CS / CZ / CW 2 Sound NICAM NICAM NICAM NICAM Line Stereo / A2 / NICAM / V-Dolby CRT 4: 4: 4: 4: 4: / Wide 2RCA / 2RCA+S / 2RCA+DVD / 2RCA+S+DVD / 4 AV Jack 2RCA+S+DVD2RCA+S+DVD SCART+S 2RCA+S+DVD 2Scart / 2Scart+S 5 Auto FM On On On On On / Off 6 PIP Off 2-Tuner -Tuner -Tuner Off / -Tuner / 2-Tuner Txt Language West Europe West Europe Russian West Europe West Europe / East Europe / Russian / Greek-Turkey Arabic / Farsi / Arab-Hebrew 8 LNA Off On On Off On / Off 9 High Deviate Off Off Off Off On / Off TTX On/Off On On On On On / Off Double TTX Off Off Off Off On / Off 2 Tilt Off On Off On On / Off Hotel Mode Off Off Off Off On / Off 4 Volume Curve Large Curve Large Curve Large Curve Large Curve Large Curve / Small Curve FM Radio Off Off Off Off On / Off 6 Antenna Disp On On On On On / Off Osd Language East-Asia East-Asia Russian East-Asia East-Asia / Middle-Asia / CIS 8 TTX List Pri Off Off Off Off On / Off 9 DNIe Jr On On On On On / Off Test pattern YC DELAY : Current RF Signal : White + Crosshatch 2 : ABL pattern : Black to White (4 pattern) 4 : Black to White 5 : Green + Magenta 6 : Color bar : Crosshatch YC DELAY Item Min Max ET G/R Remark PAL DELAY -8 SECAM DELAY -8 NTSC DELAY -8 PAL AV DELAY SECAM AV DELAY -8 NTSC AV DELAY Samsung Electronics

11 Alignment and ments EEPROM EEPROM SubAddress Factory Control Remark MIN MAX INITIAL Dynamic Contrast Dynamic Brightness Dynamic Sharpness 5 5 Dynamic Color Dynamic Tint Standard Contrast Standard Brightness 5 5 Standard Sharpness Standard Color Standard Tint 5 5 Movie Contrast 5 5 Movie Brightness Movie Sharpness Movie Color Movie Tint DVD SUB TINT 2 6:9 V-SHIFT 2 6:9 PARAVOLA PIP BRIGHTNESS 2 Double TTX Contrast TTX V Position TTX H Position TTX Contrast 2 TTX Brightness OSD/PIP CONTRAST OSD/PIP BRIGHT Double TTX H Position Standard Equ (Std BASS) Standard Equ (Std TREBLE) Standard EquK (Music BASS) Standard EquK (Music TREBLE) 5 Standard K (Movie BASS) Music Equ (Movie TREBLE) 8 8 Music Equ (Speech BASS) Music EquK (Speech TREBLE) 9 Music EquK Music K Movie Equ Movie Equ 4 Movie EquK 44 Movie EquK Movie K 46 Speech Equ Speech Equ 48 Speech EquK Speech EquK 5 Speech K 5 Brightness(RGB/DVD) 52 Contrast(RGB/DVD) U Saturation(RGB/DVD) V saturation(rgb/dvd) V/FBL Delay CrCb Delay d/w h-position d/w -blanking Samsung Electronics 2-

12 59 d/w -blanking 2 6 PIP G CUTOFF PIP G DRIVE OSD BRIGHT OFFSET 6 OSD/PIP BRIGHT OFFSET MDB_STRENGTH MDB_HARMONIC 66 MDB_HP MDB_LP 68 MDB_LIM MDB_CUTOFF 2 2 EHT POSITION 5 5 EHT POSITION CH SLLTHD (TV-NO NOISE) CH SLLTHD (TV-NO NOISE) 4 LNA 5 SLLTHDV(TV NO NOISE) VCR/TV Noise Level Offset 55 LNA SW 8 LMIXOFS 6 9 HOUTDEL 8 Over Modulation Detect Over Mod.<-> Normal return 82 VCR mode detect counter SUB MATRIX Tint VIDEO SUB SHARPNESS 85 S VIDEO SUB SHARPNESS 8 86 DVD SUB SHARPNESS 8 8 Standard Bass 5 88 Standrad Treble 5 89 Music Bass 85 9 Music Treble 9 Movie Bass Movie Treble 5 9 Speech Bass 4 94 Speech Terble G2 G2- IBRM 5 WDRM CDL 25 COLR G B,,,,,, 5 25,, 2-2 Samsung Electronics