Text preview for : TXM2796HFX-XAA_pt5.pdf part of Samsung TXM2796HFX/XAA 9 file, total of 68 pages for Samsung color television receiver model #'s TXM2796HFX/XAA, TXM2798HFX/XAA, TXM3097WHFXXAA, TXM3296HF6/XAA, TXM3298HFX/XAA, TXM2797HFX/XAA, TXM3096WHFXXAA, TXM3098WHFXXAA & TXM3297HFX/XAA with K55A chassis.
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Alignment and Adjustments
4. Alignment and Adjustments
4-1 Adjustments
4-1-1 General Alignment Instructions
Usually, a color TV needs only slight touch-up adjustment upon installation. Check the basic characteristics such as vertical size, horizontal size, and focus. Observe the picture and check for good black and white details. There must be no objectionable color shading: If color shading is present, demagnetize the receiver. If color shading persists, re-do purity and convergence adjustments. Note : 1. This `4. Alignment and Adjustments' applies to KS4A chassis applications. 2. AC Power Supply: 220 V only 3. This service manual has been written on the basis of domestic remote-control model adopting KS4A chassis. Depending on sales location and product specifications, some of specifications herein may be changed.
4-1-2 Focus Adjustment
KS4A contains a dynamic focus circuit. When CRT PCB, FBT or CRT is replaced, be sure to adjust in the following sequence:
Dynamic Focus Adjustment 1. Input a crosshatch pattern. 2. Select "Standard" from the menu, 3. Turn the Static Focus VR clockwise to set it to its maximum. 4. Turn the Dynamic Focus VR counterclockwise to set it to its maximum. 5. Turn the Static Focus VR counterclockwise slowly for the clearest center vertical line.
STATIC FOCUS VR H DYNAMIC FOCUS VR V
NO USE
After Adjustment
6. Turn the Dynamic Focus VR clockwise slowly for the clearest third line.
1 2 3
7. Check for the FOCUS of entire screen. If necessary, re-do adjustments 3~6.
Samsung Electronics
4-1
Alignment and Adjustments
4-1-3 Screen Voltage Adjustment
1. Enter the Service Mode by pressing the remote control keys in the following sequence : Power Off Mute 1 8 2 Power On 2. Initialize all set data. 3. Input a Toshiba pattern. 4. Use an oscilloscope to identify RK, BK, GK. And then adjust FBT Screen VR so that the voltage of pedestal level doesn't exceed 175V. If a Toshiba pattern is not available, cancel the blue screen and input "No Signal" to AV IN so the voltage of pedestal level doesn't exceed 188V. If an oscilloscope is not available, use a DC multi-meter in No Signal (black screen) to adjust RK, BK, GK so that the highest voltage becomes 175Vp-p.
4-1-4 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 -> Mute 1 8 2 Power On 3. Initialize all set data. 4. Input a Toshiba pattern. 5. Using a probe (CA100), do the White Balance adjustments. a) Adjust Low-Light. - Adjust Sub Brightness to set Y. - Adjust B Cutoff to set y. - Adjust R Cutoff to set x. b) Adjust High-Light. - Adjust Sub Contrast to set Y. - Adjust B Drive to set y. - Adjust R Drive to set x. c) Check the value of Low-Light. If necessary, readjust Low-Light. d) Check the value of High-Light. If necessary, readjust High-Light.15
4-2
Samsung Electronics
Alignment and Adjustments
4-1-5 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.
Samsung Electronics
4-3
Alignment and Adjustments
4-2 MICOM PORT
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUNCTION W-PORT ROM SDA ROM SCL BUS-STOP MAIN SDA MAIN SCL S-RESET V-RESET VDD 2.5V GND VDD 3.3V CVBS IN VDD 2.5V GND AFT SC1-ID - Main AFT Control jack ( 0 - 3.3V) AV MODE TV MODE RANGE 0 ~ 2V 16 : 9 MODE 4.5 ~ 7V CH1.3V ~ 1.9V 4 : 3 MODE 9.5 ~ 12V CH+ 0.9 ~ 2.4V HIGH IV p-p HIGH - TTX and USA Caption Input source Line ( 1V p-p) FIRST STATE HIGH SERIAL H SERIAL H HIGH SERIAL H SERIAL H HIGH HIGH HIGH - Analog GND - RESET Control jack during E2PROM latch UP (Function: Low)SERIAL H - E2PROM only SDA LINE - E2PROM only SCL LINE - Automation and after-sales service related BUS STOP (STOP: LOW) - CXA2150Q / CXA2151Q /VSP940X / BA7657F / MSP34XX / TUNER Control jack - CXA2150Q / CXA2151Q /VSP940X / BA7657F / MSP34XX / TUNER Control jack - Reset when MSP34XX IC (SOUND PROCESS IC) has an error (Active: LOW) - Reset when VSP940X IC (1-chip IC) has an error
17
SC-2-ID
MENU 18 19 20 21 22 23 24 25 26 27 28 29 30 31(33) 32(34) 33(35) 34(36) 35(37) 36(38) 37(39) KEY-1 H-SYNC V-SYNC KEY-3 KEY-2 X-RAY IR-IN STD-LED TIM-LED RELAY SW1 GND VDD 3.3V RESET X-IN X-OUT GND VDD 2.5V OSD-R OSD-G HIGH 1.2V p-p 1.2V p-p HIGH LOW - Reset active : HIGH - Crystal oscillation input jack - Crystal oscillation output jack HIGH HIGH LOW HIGH POSITIVE POSITIVE HIGH HIGH HIGH PHILIPS 0 ~ 0.1V
VOL0.1 ~ 0.7V
VOL+ 0.7V ~ 13V
- MICOM "H-SYNC" Input, POSITIVE Input (3.3 V p-p) - MICOM "V-SYNC" Input, POSITIVE Input (3.3 V p-p) - Power ON/OFF Control jack - TV/VIDEO switching control jack - Function: Low - Remote Control Input Jack - STANDBY: Hight, OFF: LOW - TIME ON: H TIME OFF: L - DEGAUSSING COIL CONTROL: Based on standard specifications - H: IN1, L: IN2 (BA7657F) PIN (#16) Control jack
- OSD R-OUT OUTPUT jack (0.38V p-p) ,half tone: 0.9V p-p - OSD G-OUT OUTPUT jack (0.38V p-p) ,half tone: 0.9V p-p
4-4
Samsung Electronics
Alignment and Adjustments
PIN 37(40) 38(41) 39(42) 40(43) 41(44) 42(45) 43(46) 44(47)
FUNCTION OSD-B CORE VDD 2.5V GND VDD 3.3V PX, Y PX, Y SW3
FIRST STATE 1.2V p-p 0.9V p-p HIGH
ASSIGNMENT - OSD B-OUT OUTPUT jack (0.38V p-p) ,half tone: 0.9V p-p - OSD F/B OUTPUT jack (Clamped at SAND PULSE, Half Tone: "LOW")
HIGH HIGH HIGH H - V-SYNC INPUT - F/B INPUT JACK F1 L F0 M L fH 1.75KHz (480i/480P) 33.75KHz (1080i) LOW: GNDHIGH : OPEN STATUS Initially, these pins select an input source at LOW state
45(48) 46(49) 47(50) 48(51) 49(52)
SW2 S-MUTE POWER H.P-ID TILT
L
M
- System (NTSC/PAL) MUST be separated - Active "LOW" - 1080I control jack: 1080i (LOW), RF (High) HIGH - Magnetic field control
Samsung Electronics
4-5
Alignment and Adjustments
4-3 Factory Adjustment Values and White Balance Settings
4-3-1 Factory Adjustment Values SERVICE Deflection 480P Offset 1080i Offset PC Offset Video Adjust 1 Video Adjust 2 Option (2EH 00H) Reset
4-3-2 White Balance Settings
SDI CRT INCH W/B Value
H L
LG CRT 32" WIDE
TOSHIBA CRT 34" FLAT
SDI CRT
SDI CRT
SDI CRT
SDI CRT
TOSHIBA CRT 34" FLAT CT34Z7PGX
29" WIDE
32" WIDE
34" FLAT
29" FLAT
32" WIDE CT32Z7PGX
Model
TXM2796HFX TXM3096HFX TXM3296HFX TXM3096HFX TXM3296HFX TXM2796HFX TXM3097HFX TXM3297HFX TXM3097HFX TXM3297HFX CT29Z7PGX TXM2798HFX TXM3098HFX TXM3298HFX TXM3098HFX TXM3298HFX
275/265 45FL 275/265 50FL 275/265 40FL 275/265 45FL 275/265 40FL 275/265 45FL 275/265 45FL 275/265 40FL 275/265 1.0FL 275/265 1.5FL 275/265 1.0FL 275/265 1.0FL 275/265 1.0FL 275/265 1.0FL 275/265 1.0FL 275/265 1.0FL
4-6
Samsung Electronics
Alignment and Adjustments
4-4 Functions of Each Port in Service Mode
DEFLECTION
: Fixed Value
LG CRT 32" WIDE TOSHIBA CRT 34" FLAT
SDI CRT SDI CRT SDI CRT SDI CRT
SDI CRT INCH Model ITEM
V-AMP V-SHIFT H-EW H-SHIFT V-LIN UP-LIN LOW-LIN V-SC H-PAR UP-COR LOW-COR H-TRA BOW ANGLE V-POSI CXA Left BLK CXA Right BLK
TOSHIBA CRT 34" FLAT CT34Z7PGX 50 28 30 25 5 7 7 3 40 40 35 45 32 32 32 30 37
29" WIDE
32" WIDE
34" FLAT
29" FLAT
32" WIDE CT32Z7PGX 30 30 30 30 6 4 4 3 32 35 35 35 30 32 32 30 37
TXM2796HFX TXM3096HFX TXM3296HFX TXM3096HFX TXM3296HFX TXM2796HFX TXM3097HFX TXM3297HFX TXM3097HFX TXM3297HFX CT29Z7PGX TXM2798HFX TXM3098HFX TXM3298HFX TXM3098HFX TXM3298HFX 45 26 46 27 5 6 6 3 24 27 26 37 32 32 32 30 37 30 30 30 25 6 4 4 3 32 35 35 35 30 32 32 30 37 50 28 30 25 5 7 7 3 40 40 35 45 32 32 32 30 37 30 30 30 30 6 4 4 3 32 35 35 35 30 32 32 30 37 42 29 20 31 10 15 5 5 45 38 41 28 31 30 32 30 37 45 26 46 27 5 6 6 3 24 27 26 37 32 32 32 30 37
Samsung Electronics
4-7
Alignment and Adjustments
480P OFFSET
SDI CRT INCH Model ITEM V-AMP V-SHIFT H-EW H-SHIFT V-LIN UP-LIN LOW-LIN V-SC H-PAR UP-COR LOW-COR H-TRA BOW ANGLE V-POSI
CXA Left BLK CXA Right BLK
LG CRT 32" WIDE
TOSHIBA CRT 34" FLAT
SDI CRT
SDI CRT
SDI CRT
SDI CRT
TOSHIBA CRT 34" FLAT CT34Z7PGX 2 -1 4 8 0 0 0 0 -2 0 0 0 0 0 0 28 36
29" WIDE
32" WIDE
34" FLAT
29" FLAT
32" WIDE CT32Z7PGX 0 -1 6 3 0 0 0 0 2 0 0 0 0 0 0 28 36
TXM2796HFX TXM3096HFX TXM3296HFX TXM3096HFX TXM3296HFX TXM2796HFX TXM3097HFX TXM3297HFX TXM3097HFX TXM3297HFX CT29Z7PGX TXM2798HFX TXM3098HFX TXM3298HFX TXM3098HFX TXM3298HFX 0 -2 7 8 0 0 0 0 0 0 0 0 0 0 0 28 36 0 -1 6 3 0 0 0 0 2 0 0 0 0 0 0 28 36 2 -1 4 8 0 0 0 0 -2 0 0 0 0 0 0 28 36 0 -1 6 3 0 0 0 0 2 0 0 0 0 0 0 28 36 1 0 4 4 0 0 0 0 -2 0 0 0 0 0 0 28 36 0 -2 7 8 0 0 0 0 0 0 0 0 0 0 0 28 36
4-8
Samsung Electronics
Alignment and Adjustments
1080i OFFSET
SDI CRT INCH Model ITEM V-AMP V-SHIFT H-EW H-SHIFT V-LIN UP-LIN LOW-LIN V-SC H-PAR UP-COR LOW-COR H-TRA BOW ANGLE V-POSI
CXA Left BLK CXA Right BLK
LG CRT 32" WIDE
TOSHIBA CRT 34" FLAT
SDI CRT
SDI CRT
SDI CRT
SDI CRT
TOSHIBA CRT 34" FLAT CT34Z7PGX -15 -4 10 1 0 0 0 0 -3 0 0 -3 -2 0 0 50 27
29" WIDE
32" WIDE
34" FLAT
29" FLAT
32" WIDE CT32Z7PGX -13 -4 0 -1 0 0 0 0 -7 -3 -1 -3 0 0 0 50 27
TXM2796HFX TXM3096HFX TXM3296HFX TXM3096HFX TXM3296HFX TXM2796HFX TXM3097HFX TXM3297HFX TXM3097HFX TXM3297HFX CT29Z7PGX TXM2798HFX TXM3098HFX TXM3298HFX TXM3098HFX TXM3298HFX -14 -5 8 1 0 0 0 0 0 0 -2 3 4 2 0 50 27 -13 -4 0 -1 0 0 0 0 -7 -3 -1 -3 0 0 0 50 27 -15 -4 10 -1 0 0 0 0 -3 0 0 -3 -2 0 0 50 27 -13 -4 0 -1 0 0 0 0 -7 -3 -1 -3 0 0 0 50 27 -12 -3 9 -1 0 0 0 0 7 -1 1 -3 1 0 0 50 27 -14 -5 8 1 0 0 0 0 0 0 -2 3 4 2 0 50 27
Samsung Electronics
4-9
Alignment and Adjustments
PC OFFSET
SDI CRT INCH Model ITEM V-AMP V-SHIFT H-EW H-SHIFT V-LIN UP-LIN LOW-LIN V-SC H-PAR UP-COR LOW-COR H-TRA BOW ANGLE V-POSI
CXA Left BLK CXA Right BLK
LG CRT 32" WIDE
TOSHIBA CRT 34" FLAT
SDI CRT
SDI CRT
SDI CRT
SDI CRT
TOSHIBA CRT 34" FLAT CT34Z7PGX -16 0 -21 16 0 0 0 0 7 2 2 0 0 0 0 20 10
29" WIDE
32" WIDE
34" FLAT
29" FLAT
32" WIDE CT32Z7PGX -16 0 -20 18 0 0 0 0 4 5 2 0 0 0 0 20 10
TXM2796HFX TXM3096HFX TXM3296HFX TXM3096HFX TXM3296HFX TXM2796HFX TXM3097HFX TXM3297HFX TXM3097HFX TXM3297HFX CT29Z7PGX TXM2798HFX TXM3098HFX TXM3298HFX TXM3098HFX TXM3298HFX * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -22 0 -26 19 0 0 0 0 8 2 2 0 0 0 0 20 10
4-10
Samsung Electronics
Alignment and Adjustments
VIDEO ADJUST 1
: Fixed Value
SDI CRT INCH Model ITEM
R-Cutoff G-Cutoff B-Cutoff
Color on/off
LG CRT 32" WIDE
TOSHIBA CRT 34" FLAT
SDI CRT
SDI CRT
SDI CRT
SDI CRT
TOSHIBA CRT 34" FLAT CT34Z7PGX 32 32 32 1 31 31 32 32 32 10 10 18 7 1 2 1 0 0 0
29" WIDE
32" WIDE
34" FLAT
29" FLAT
32" WIDE CT32Z7PGX 32 32 32 1 31 31 32 32 32 20 10 18 7 1 2 1 0 0 0
TXM2796HFX TXM3096HFX TXM3296HFX TXM3096HFX TXM3296HFX TXM2796HFX TXM3097HFX TXM3297HFX TXM3097HFX TXM3297HFX CT29Z7PGX TXM2798HFX TXM3098HFX TXM3298HFX TXM3098HFX TXM3298HFX 32 32 32 1 31 31 32 32 32 23 10 18 7 1 2 1 * * * 32 32 32 1 31 31 32 24 32 25 10 18 7 1 2 1 * * * 32 32 32 1 31 31 32 32 32 10 10 18 7 1 2 1 * * * 32 32 32 1 31 31 32 32 32 20 10 18 7 1 2 1 * * * 32 32 32 1 31 31 32 32 32 10 5 18 7 1 2 1 * * * 32 32 32 1 31 31 32 32 32 23 10 18 7 1 2 1 0 0 0
CR offset CB offset R-Drive G-Drive B-Drive Sub-Bright
Sub-Contrast
Sub-Color Sub-Tint CTI-Level COL AXIS LTI-Level PC DPIC Level PC DC Trans PC VM Level
Samsung Electronics
4-11
Alignment and Adjustments
VIDEO ADJUST21
SDI CRT INCH Model ITEM
ABL Mode Gamma DPIC Level DC Trans ABL-TH VM-Level VM-Coring VM-f0 VM-Limit VM-Delay SHP CD SHP f0 SHP f1&p/o AKB Time YC Delay PIP YC Delay Band Pass F High Pass F
LG CRT 32" WIDE
TOSHIBA CRT 34" FLAT
SDI CRT
SDI CRT
SDI CRT
SDI CRT
TOSHIBA CRT 34" FLAT CT34Z7PGX 3 2 3 3 7 1 0 2 0 1 1 0 4 16 30 3 1 3
29" WIDE
32" WIDE
34" FLAT
29" FLAT
32" WIDE CT32Z7PGX 3 1 3 3 12 2 0 2 3 3 1 0 14 16 30 3 2 4
TXM2796HFX TXM3096HFX TXM3296HFX TXM3096HFX TXM3296HFX TXM2796HFX TXM3097HFX TXM3297HFX TXM3097HFX TXM3297HFX CT29Z7PGX TXM2798HFX TXM3098HFX TXM3298HFX TXM3098HFX TXM3298HFX 3 1 3 3 7 2 1 2 3 3 1 0 11 16 30 3 2 4 3 1 3 3 12 2 0 2 3 3 1 0 14 16 30 3 2 4 3 1 3 3 7 1 0 2 0 1 1 0 4 16 30 3 1 3 3 2 3 3 15 2 3 2 3 3 1 0 14 16 30 3 2 4 3 2 3 3 15 2 0 2 0 1 1 0 14 16 30 3 2 4 3 1 3 3 7 2 1 2 3 3 1 0 11 16 30 3 2 4
4-12
Samsung Electronics
Alignment and Adjustments
VIDEO ADJUST 3
SDI CRT INCH Model ITEM
VSU Melody Volume H comp V comp PIN comp AFC comp Sync Phase NR Off Value 480P CR 480P CB 480P S Color 480P S Tint 1080i CR 1080i CB 1080i S Color 1080i S Tint V-MUTE (X100ms) PC H Comp PC V Comp
LG CRT 32" WIDE
TOSHIBA CRT 34" FLAT
SDI CRT
SDI CRT
SDI CRT
SDI CRT
TOSHIBA CRT 34" FLAT CT34Z7PGX 2 4 8 5 3 0 0 5 35 35 15 10 33 33 15 10 3 10 5
29" WIDE
32" WIDE
34" FLAT
29" FLAT
32" WIDE CT32Z7PGX 2 4 8 5 0 0 0 7 35 35 18 10 33 33 18 10 3 10 5
TXM2796HFX TXM3096HFX TXM3296HFX TXM3096HFX TXM3296HFX TXM2796HFX TXM3097HFX TXM3297HFX TXM3097HFX TXM3297HFX CT29Z7PGX TXM2798HFX TXM3098HFX TXM3298HFX TXM3098HFX TXM3298HFX 2 4 5 3 0 0 0 7 35 35 15 10 33 33 15 10 3 * * 2 4 8 5 0 0 0 7 35 35 18 10 33 33 18 10 3 * * 2 4 8 5 3 0 0 5 35 35 15 10 33 33 15 10 3 * * 2 4 8 5 0 0 0 7 35 35 18 10 33 33 18 10 3 * * 2 4 10 10 6 0 0 5 35 35 18 10 33 33 18 10 3 * * 2 4 5 3 0 0 0 7 35 35 15 10 33 33 15 10 3 10 5
Samsung Electronics
4-13
Alignment and Adjustments
OPTION BYTE
Option
1. CRT 2. PIP(D/W)
Model TXM3297HFX TXM2796HFX TXM2797HFX TXM2798HFX TXM3096HFX TXM3097HFX TXM3098HFX TXM3296HFX TXM3298HFX 4:3 ON OFF OFF ON ON OFF 4:3 OFF OFF OFF OFF ON OFF 4:3 OFF OFF OFF ON ON OFF 4:3 ON ON OFF ON ON OFF WIDE OFF OFF OFF OFF ON OFF WIDE ON OFF OFF ON ON OFF WIDE ON ON OFF ON ON OFF
CT29Z7PGX TXM3098HFX CT34Z7PGX 4:3 ON ON OFF ON ON OFF WIDE ON ON OFF ON ON OFF
3. 3D-COMB Filter 4. Blue Screen 5. BBE Effect 6. Egualizer 7. Auto Power On 8. Sytem 9. Virtual Dolby 10. ACS 11. V Chip (CT,CTA) 12. V Chip Area 13. SUB Woofer 14. No Sync Mute 15. X-Ray 16. AGC 17. Turbo Effect 18. Burst Screen 19. LNA Option 20. PC Option
CT(EN+SP+FR) CT(EN+SP+FR) CT(EN+SP+FR) CT(EN+SP+FR) CT(EN+SP+FR) CT(EN+SP+FR) CT(EN+SP+FR) CT(EN+SP+FR) CT(EN+SP+FR) OFF ON ON USA OFF OFF ON OFF OFF ON ON OFF OFF ON ON USA OFF OFF ON OFF OFF ON OFF OFF OFF ON ON USA OFF OFF ON OFF OFF ON OFF OFF OFF ON ON USA ON OFF ON OFF OFF ON ON OFF OFF ON ON USA OFF OFF ON OFF ON ON OFF OFF OFF ON ON USA OFF OFF ON OFF OFF ON ON OFF OFF ON ON USA ON OFF ON OFF OFF ON ON OFF OFF OFF OFF USA ON OFF OFF OFF OFF ON ON ON OFF OFF OFF USA ON OFF OFF OFF OFF ON ON ON
4-14
Samsung Electronics
Alignment and Adjustments
4-8 Screen Change (I2C Bus Geometric Adjustment)
0 V - Amp 9 Upper Coner
1
V-Shift
10 Low Coner
2
H-EW
11
H- Trapezuim
3 H-Shift
12
Bow
4
V-Linearity
13
Angle
5
Upper Linearity
14
V Position
6
Low Linearity
15 CXA Left BLK
7
V SC
16 CXA Right BLK
8
H-Parabola
Samsung Electronics
4-15
MEMO
4-16
Samsung Electronics