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XOCECO TS2050J Service Manual

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COLOR TELEVISION
TS2050J
(TK2050)

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Summary of Contents for XOCECO TS2050J

  • Page 1 COLOR TELEVISION TS2050J (TK2050)

  • Page 2: Table Of Contents

    CONTENTS Safety instruction………………………………………………………………………1 General instruction……………………………………………………………………….1 Alignment instruction……………………………………………………………………2 Alignment f low ..……………………… ……………………… ……………………..2 A l i g n m e n t m e t h o d … … … … … … … … … … … … … … … … … … … … … … … … … . .3 Block diagram..………………………………………………………………………...10 MAIN IC………………………………………………………………………………..11 P a r t s l i s t …...

  • Page 3: Safety Instruction

    Note: This service manual is only for professional service personnel’s reference. Before servicing the unit, please read the following items carefully. 1 Safety instruction 1.1 X-RAY radiation precaution 1.1.1 Excessive voltage will cause harmful X-ray. To avoid this radiation hazard, the high voltage should fall within the limitation.

  • Page 4: Alignment Instruction

    Alignment instruction 3.1 Debugging item a)adjust mode instruction b)B+ voltage adjustment c)RFAGC voltage adjustment d)focus adjustment e)Screen-grid voltage white balance, sub brightness adjustment f)filed scan center, line , amplitude adjustment g)H-scan center adjustment 3.2 Alignment flow PROM copy High voltage check B+ adjustment X-ray protect check Filament voltage check...

  • Page 5: Alignment Method

    3.3 Enter/exit factory adjustment method Use remote control, press “MENU” button, then press 6483,”TEST”will appear on screen to show that you have entered the factory adjustment method, press “STANDBY” to exit it. Use factory remote control, press the “PRESET” and “TEST” button, then the screen display “test” which means you have entered into the factory adjustment mode, press the “TEST”...
  • Page 6 b) adjust focus electrode potentiometer on FBT to optimize B area focus of screen. 4.7 White balance adjustment (color temperature 12000°K± 8MPCD,X=0.270± 0.008,Y=0.283± 0.008) a) receive full white signal, set color is 0 b) select factory menu3 c) on the basis of blue gun ”BD”, select and adjust “RD, GD” item to make white balance respectively at brightness Y=6cd/m , Y=80cd/m meet standard (color temperature 12000°K±...
  • Page 7 place. c) Exit factory menu 4.12. Checking point 4.12.1 High voltage check Connect High Voltage meter between CRT second anode and GND. Receive A7 signal, set the control to “STANDARD”, measure the high voltage value, the reading should be 25 kV±0. 5 kV Set the brightness and contrast to miminum (zero beam current), measure the high voltage, the reading should not exceed 27kV.
  • Page 8 4.14 Color purity correction a) Turn on your TV b) At least 15 minutes later, use anti-magnetized coil for degaussing c) Obtain maximum brightness and contrast d) Select factory menu3 and adjust to let R and B be zero, then let only green raster appear on the screen at the moment e) Loosen screws of deflection yoke frame to let vertical green belt appear on screen only Move the rubber wedge...
  • Page 9 4.16.2 turn on the unit in the STANDBY state Press CH+/CH- buttons turn on in the STANDBY state. 4.16.3 Information of software version Enter MEU9 of the factory menu in the top. 4.16.4 “STANDARD”, “COLORFUL” and “ SOFTNESS” a).Enter MENU5 Mode of the factory menu b).charge their for seemly analog quantity, then return standard option.
  • Page 10 BTSC-A1 0-31 BTSC-A2 0-31 BTSC-TC BTSC-STS BTSC-ADJ MODE STANADARD(standard, soft, floweriness) BRIGHT 0-100 0-100 CONTRAST COLOR 0-100 SCBRIGHT 0-63 YDELAYTV 0-15 YDELAYAV 0-15 1(field over-scan switch) AGCSPEED 1(AGC of speed) 0(IF PLL SPEED) FMWS 1(frequency range of sound OFF=225KHZ,ON=450KHZ) 0(pre-shock and over-shock scale) NTSCMATRIX USA/JAPAN VOLPIN...
  • Page 11 STARTTIME 6-15 8(turn on time) IF OFFSET 0-63 32(IF compensate) TUNER OPTION 0(BXATB011F---X/ BXATB108F---K) 1 (BXATB017F---K) 2(XXX) GAME GALENDA...

  • Page 12: Block Diagram

    Block diagram A101 Z301 V801 TDA8377 video TUNER IF IN Y IN BU4052 video RF AGC V IN V352 N121 U IN video CVBSINT video S-VHS CHROMA IFVO OUT TRAP video CVBS/Y IN audio AN702 24C08 ARi2 ARi1 AUDIO OUT RGB OUT N801 BU4052...

  • Page 13: Main Ic

    MAIN IC 8377: ICs functional description UOC TDA(OM)8377 SYMBOL DESCRIPTION STAND BY output. In STAND BY mode, high level (Power OFF). For Power ON this pin will be reduced to low. C-bus clock line C-bus data line TUNING P3.0/NTSC SW Control keys input Sound Volume control PWM output MUTE...
  • Page 14 DECDIG decoupling digital supply of TV-processor PH2LF Phase-2 filter PH1LF Phase-1 filter GND3 Ground 3 for TV-processor DECBG Band gap decoupling AVL/EWD Automatic volume leveling /EAST-WEST drive output VDRB Vertical drive B output VDRA Vertical drive A output IFIN1 IF input 1 IFIN2 IF input 2 IREF...
  • Page 15 TV-processor (3.3 V) OTP Programming Voltage VDDC digital supply to core (3.3 V) OSCGND oscillator ground supply XTALIN crystal oscillator input XTALOUT crystal oscillator output RESET reset VDDP digital supply to periphery (+3.3 V) P1.0/INT1 TV/AV (AV1) / AV2 /S-VHS mode Output. P1.1/T0 TV/AV (AV1) / AV2 /S-VHS mode Output.
  • Page 16 AN 7522/AN17821A 6. Test point Waveforms 3.8Vpp 2.5Vpp 2.5Vpp 1.2Vpp 2.6Vpp TDA8377 PIN53 TDA8377 PIN52 TDA8377 PIN51 TDA8377 PIN40 TDA8377 PIN38 0.9Vpp 5Vpp 95Vpp 95Vpp 95Vpp TDA8377 PIN34 TDA8377 PIN33 CRT KR CRT KG CRT KB 0.8Vpp 1Vpp 2.7Vpp 920Vpp V451 B V451 C TDA8377 PIN59...
  • Page 17 Wiring diagram...
  • Page 18 PART LIST PART# DESCRIPTION LOCA.NO. 203-TK20500-12 TS2050J, PRIMA BRAND JENSEN,N- 100-TK20500-01 TK2050 123-30001-04 TWIST WIRE 655-62101-01 (6-PINS) LEAD WITH HOUSING 700-60151-00 LED LED COLUMN 700-60152-00 LED LED COLUMN 742-30005-09 LINE TIE 742-30006-09 GRADING TIE 742-30029-00 POWER CORD CLASPER 742-30032-00 742-30032-00...
  • Page 19 POWER SYMBOL LABEL ( JENSEN) 881-63758-00 BAR CODE LABEL (69020712050) 881-80666-00 REGISTER CARD ( JENSEN AMERICA ) 881-80679-00 SERVICE CARD ( AMERICA 20-24 CRT) 886-31132-121 CARTON BOX (TS2050J,JENSEN) 887-21135-00 CLASPER PALSTIC BAG 230X330X0.1 887-21135-02 CLASPER PALSTIC BAG 230X330X0.1 615-20429-00 SPEAKER ASS'Y 384-40308-40...
  • Page 20 CCF330J1CA-FN 50V33P C761 C762 CED102M1ACHNP 25V1000u C522 CED222M2ACKNP 25V2200u C524 CED471M1ACENP 25V470u C161 CEE331M1ACFNP 35V330u C530 CEH100M1ACENP 160V10u C458 CEH221M2ECLNP 160V220u C528B CEJ221M3AEHNM 200V220u C507 CEK100M1ACHNP 250V10u C477 C941 CKF472K1BA-FN 50V4700P C324 C336 CKMX102M301ND AC400V1000P C515A CKMX471K301ND AC400V470P C515 C598 C598B CKP101K1BA-FD 500V100P C482...
  • Page 21 GABV2001----N 2S SOCKET(MIDDLE ) XS502 GACV5001----A 5S SOCKET(SMALL XH) XS161 GACV6001----A 6S SOCKET XS895 GBAVL007----A CRT SOCKET THICK GZS10-2-108 XS901 GBBB9-06----8 AVSOCKET(AV16-09-004) XS801 GBCH5001----Y S END XS861 HAA0004-----G SMIT-SS-112DM(27ohm) RL581 JW4451-J001-A 4P LINE(450mm D2-D2) XS402(XS402→XS902) JW5431-J132-A 5P LINE(E3D 430mm) XS903(XS903→XS301) LEA001-5---NJ M-COIL( FERRITE BEAD ) L450 L505...
  • Page 22 Q2PC1815-GNF- 2PC1815G V491 Q2SB1443--NN- 2SB1443 TV2 Q V542 QBF421----NF- BF421 V913 V923 V933 QBF422----NF- BF422 V912 V922 V932 QKSC1674C-NN- KSC1674C V308 QKSC2330-YNN- KSC2330 V911 V921 V931 QKSC2383-ONF- KSC2383O V450 QTT2140---BN- TT2140 V451 RDD102J-NACTD 1/2W 1K R453 RDD683J-NACTD 1/2W 68K R507 R508 RFER27J5ACDNF 1W 0.27 R555 R565 R566...
  • Page 23 340-00001-00 DIODE 1N4148 VD911 364-32101-00 2-PINS CONNECTORS TJC3-02A XS702A 364-34101-00 4-PINS CONNECTORS TJC3-04A XS701 364-36102-00 6-PINS CONNECTORS TJC2-6A XS403 459-B222M-20 CERAMIC CAPACITOR ECK-DNS222MEX 459-2133K-90 CERAMIC CAPACITOR RBU07SL331K-H46CA C911 459-2147H-90 CERAMIC CAPACITOR CC1-12-SL-63V-471J C732 464-6D610-M0 ELECTROLYTIC CAPACITOR CD110-16V-10uF-M C322 464-6D610-M0 ELECTROLYTIC CAPACITOR CD110-16V-10uF-M C751 464-6D647-M0 ELECTROLYTIC CAPACITOR CD110-16V-47uF-M...
  • Page 24 459-2133K-902 CERAMIC CAPACITOR RBU07SL331K-H46CA C323 462-B0233-H02 POLYESTER CAPACITOR CL21X-50V-3300PF-J C321 462-00256-H02 POLYESTER CAPACITOR CL11-100V-5600PF-J C154 462-00256-H02 POLYESTER CAPACITOR CL11-100V-5600PF-J C158 464-6D647-M02 ELECTROLYTIC CAPACITOR CD110-16V-47uF-M C123 467-1C033-H03 CARBON RESISTOR 1/6W-33Ω-J R398 467-1C047-H03 CARBON RESISTOR 1/6W-47Ω-J R921 467-1C047-H03 CARBON RESISTOR 1/6W-47Ω-J R931 467-1C215-H03 CARBON RESISTOR 1/6W-1.5K-J R397...
  • Page 25 459-2310R-002 CERAMIC CAPACITOR CK45-F1H103ZYR C362 459-2310R-002 CERAMIC CAPACITOR CK45-F1H103ZYR C472 459-2310R-002 CERAMIC CAPACITOR CK45-F1H103ZYR C475 459-2310R-002 CERAMIC CAPACITOR CK45-F1H103ZYR C723 459-2310R-002 CERAMIC CAPACITOR CK45-F1H103ZYR C744 459-2310R-002 CERAMIC CAPACITOR CK45-F1H103ZYR C752 459-2310R-002 CERAMIC CAPACITOR CK45-F1H103ZYR C756 459-2310R-002 CERAMIC CAPACITOR CK45-F1H103ZYR C399 459-2410R-002 CERAMIC CAPACITOR DD308-63F104Z50 C302...
  • Page 26 464-6D747-M02 ELECTROLYTIC CAPACITOR CD110-16V-470uF-M C532 464-6D747-M02 ELECTROLYTIC CAPACITOR CD110-16V-470uF-M C801 464-6E710-M02 ELECTROLYTIC CAPACITOR CD110-25V-100uF-M C471A 464-6E710-M02 ELECTROLYTIC CAPACITOR CD110-25V-100uF-M C474A 464-6E722-M02 ELECTROLYTIC CAPACITOR CD110-25V-220uF-M C471 464-6E722-M02 ELECTROLYTIC CAPACITOR CD110-25V-220uF-M C474 464-6F647-M02 ELECTROLYTIC CAPACITOR CD110-35V-47uF-M C453 464-6F647-M02 ELECTROLYTIC CAPACITOR CD110-35V-47uF-M C460A 464-6F710-M02 ELECTROLYTIC CAPACITOR CD110-35V-100uF-M C406...
  • Page 27 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R382 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R383 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R401 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R402 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R452 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R723 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R724 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R743 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R861...
  • Page 28 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R825 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R827 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R492 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R351 467-1C212-H03 CARBON RESISTOR 1/6W-1.2K-J R305 467-1C212-H03 CARBON RESISTOR 1/6W-1.2K-J R560 467-1C215-H03 CARBON RESISTOR 1/6W-1.5K-J R732 467-1C222-H03 CARBON RESISTOR 1/6W-2.2K-J R371 467-1C222-H03 CARBON RESISTOR 1/6W-2.2K-J R451...
  • Page 29 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R818A 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R825A 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R827A 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R851A 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R852A 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R912 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R922 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R932 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R709...
  • Page 30 467-2C322-G03 METAL RESISTOR 1/6W-22K-G R482 471-2A56K-003 PEAKING COIL SPT0305-5R6K-5 L351 471-2010K-003 PEAKING COIL SPT0305-100K-5 L331 471-2010K-003 PEAKING COIL SPT0305-100K-5 L361 471-2010K-003 PEAKING COIL SPT0305-100K-5 L751 471-2010K-003 PEAKING COIL SPT0305-100K-5 L752 471-2010K-003 PEAKING COIL SPT0305-100K-5 L753 895-6016030-50 RIVET GB876-86 1.6X3 COPPER 895-6016030-50 RIVET GB876-86 1.6X3 COPPER 895-6016030-50...
  • Page 31 JUMPER WIRE W162 JUMPER WIRE W163 JUMPER WIRE W164 JUMPER WIRE W167 JUMPER WIRE W168 JUMPER WIRE W169 JUMPER WIRE W231 JUMPER WIRE W241 JUMPER WIRE W242 JUMPER WIRE W243 JUMPER WIRE W251 JUMPER WIRE W252 JUMPER WIRE W253 JUMPER WIRE W254 JUMPER WIRE W265...
  • Page 32 JUMPER WIRE W455 JUMPER WIRE W461 JUMPER WIRE W462 JUMPER WIRE W472 JUMPER WIRE W473 JUMPER WIRE W475 JUMPER WIRE W476 JUMPER WIRE W482 JUMPER WIRE W491 JUMPER WIRE W541 JUMPER WIRE W542 JUMPER WIRE W551 JUMPER WIRE W552 JUMPER WIRE W554 JUMPER WIRE W561...
  • Page 33 JUMPER WIRE W785 JUMPER WIRE W786 JUMPER WIRE W787 JUMPER WIRE W791 JUMPER WIRE W862 JUMPER WIRE W871 JUMPER WIRE W872 JUMPER WIRE W873 JUMPER WIRE W874 JUMPER WIRE W875 JUMPER WIRE W876 JUMPER WIRE W877 JUMPER WIRE W878 JUMPER WIRE W879 JUMPER WIRE W881...
  • Page 34 467-1C230-H0 CARBON RESISTOR 1/6W-3K-J R903 467-1C230-H0 CARBON RESISTOR 1/6W-3K-J R904 467-1C262-H0 CARBON RESISTOR 1/6W-6.2K-J R905 467-1C318-H0 CARBON RESISTOR 1/6W-18K-J R906 655-21201-57 (2-PINS) LEAD WITH HOUSING X901 655-41201-169 (4-PINS) LEAD WITH HOUSING X601 782-M2550-0500 BUTTON PCB 877-50411-00 877-50412-01 KEY CAP ( PLATE ) JUMPER WIRE J901 667-TK2150-29A...

  • Page 35: E Xp L O D E D Vi E

    EXPLODED VIEW...
  • Page 36 TK2050 PART LIST OF EXPLODED VIEW DESCRIPTION PART# PORT BAFFLE 808-6B758-04 REAR CABINET 780-10915-J40A SCREW 851-24020-14 POWER LINE CLASP 742-30029-00 MAIN BOARD ASSY 667-TKP50-01A 335-21225-00U CRT FIXED BLOCK 868-20472-00D CRT SUPPORT 868-20491-00 SCREW 851-53010-11 RIGHT LEAD TRACK 870-20846-00 SPEAKER BRACKET 870-20849-00 SIDE AV BRACKET 870-20843-40...

  • Page 37: Schematic Diagram

    SCHEMATIC DIAGRAM are extremely CAUTION:all the parts in the schematic diagram marked with shodows and the signs of important for safety. In case of replacement of any part of components. Be sure to consult the service manual carefully. 1. the schematic diagram is characteristic. The various valus in the electric circuits are basic data, which are changeable according to the various basic circuits.

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