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XOCECO TK2416 Service Manual

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COLOR TELEVISION
TK2416
(TK2426)

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Summary of Contents for XOCECO TK2416

  • Page 1 COLOR TELEVISION TK2416 (TK2426)

  • 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………………………………………………………………………...

  • 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 Flow

    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 Normal +B adjustment Focus adjustment AGC adjustment temperature aging White balance...
  • Page 5 b) under ”M” condition, set the accelerator to an appropriate point for aging. 4.4 Accelerator adjustment a) do not receive signals; b) select “SC” of factory menu3 to let the field scanning stop working. c) adjust acceleration potentiometer to let bright lines just appears on screen. d) exit SC menu.
  • Page 6 g) Adjust VR431 to minimize trapezoidal distortion h) Exit factory menu Fig-3 line scan adjustment 4.10 Sub-brightness adjustment a) Receive PAL-D/K PHILIPS signal b) Select “SB” of factory menu3 c) Adjust “SB” to let things between the sixth and seventh grey scale clear 4.11 OSD adjustment a) Receive PAL-D/K PHILIPS signal b) Select OSD H and OSD V of factory menu4.
  • Page 7 b) At least 15 minutes later, receive square test pattern signal c) Adjust brightness and contrast to get the best picture d) Adjust the angle of two tetrode magnetic rings to let the red vertical line coincide with the blue vertical line at middle of screen e) Keep the angle unchanged, move the two tetrode magnetic rings at the same time to let the red and blue horizontal lines coincide at middle of screen...
  • Page 8 75(adjust white balance of brightness contrast) 32(red cut off level adjustment) 32(green cut off level adjustment) 32(red cut off level adjustment) 32(green cut off level adjustment) 32(blue cut off level adjustment) 40(sub brightness adjustment) OSD.V.POSITION 10(OSD position) OSD.H.POSITION 5(OSD H-position) BTSC-MODE MONO(STEORO,SAP ) BTSC-ST...
  • Page 9 VOLADJPOING 1(volume value have:1,25,50,75) VOLVALUE 20(volume curve value:20,60,75,90) CATHOOELEVEL 7(cathode level) UOCVOLUME 0(0:PWM terminal control; 1:UOC sound amplitude control of inside) FMATT 45(UOC sound output of amplitude) BTSC : 38 COMBFILTRE 0(N comb filter) HEADPHONE 0(earphone function selection) VM OPTION 0(VM function selection) FRANCE 1 French...

  • Page 10: Block Diagram

    Block diagram TDA8377 video TUNER IF IN Y IN RF AGC V IN 4052 video U IN CVBSINT video S-VHS video CHROMA IFVO OUT TRAP video CVBS/Y IN audio 24C08 ARi2 ARi1 AUDIO OUT RGB OUT N801 BU4052 V OUT H OUT ALi2 ALi1...

  • Page 11: Main Ic

    MAIN IC 8377: ICs functional description UOC TDA8377 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 tuning Voltage (Vt) PWM output P3.0/NTSC SW Port 3.0 or NTSC output/SCART SW input, Forced NTSC selection, Low-level output, otherwise High output.
  • Page 12 Sound Volume control PWM output MUTE Sound mute output VSSC/P Digit ground for µ-controller core and periphery BAND1 Tuner Band selection output BAND2 Tuner Band selection output VSSA Analog ground of teletext decoder and digital ground of TV-processor SECPLL SECAM PLL decoupling supply voltage TV-processor(+8V) DECDIG decoupling digital supply of TV-processor...
  • Page 13 R2/VIN 2nd R input / V (R-Y) input / PR input G2/YIN 2nd G input / Y input B2/UIN 2nd B input / U (B-Y) input / PB input BCLIN beam current limiter input BLKIN black current input / V-guard input Red output Green output Blue output...
  • Page 14 Test point Waveforms 1.2Vpp 2.6Vpp 3.8Vpp 2.5Vpp 2.5Vpp TDA8377 TDA8377 TDA8377 TDA8377 TDA8377 PIN51 0.9Vpp 5Vpp 95Vpp 95Vpp 95Vpp TDA8377 PIN34 TDA8377 CRT KR CRT KG CRT KB 0.8Vpp 1Vpp 2.7Vpp 1000Vpp V451 B V451 C TDA8377 TDA8377 TDA8377 22Vpp 300Vpp T511 PIN7 IC voltages...

  • Page 15: Schematic Diagram

    PART LIST PART# DESCRIPTION LOCA.NO. 203-TK24260-11 TK2416, BRAND PRIMA,N-M,UL SILVERY 100-TK24260-01 TK2426 123-30001-04 TWIST WIRE 335-2512D-00U CRT 64SX505Y22-DC02 602-TK2426-01 SCHEMATIC DIAGRAM 611-D26X0J0H2B FRONT CABINET ASS'Y ( SILVERY WHITE 03,SILK-SCREEN ) 615-10223-00 CRT HOLDER ASS'Y 648-30001-00 COMPOSE NUTS SJ2843-87M6 681-80001 SERIAL NO. LABEL...
  • Page 16 OPERATION CARD 8.5X11/BACK CABINET SILK-SCREEN 881-63016-00A POWER SYMBOL LABEL ( T2751) 881-63667-00 WARNING LABEL 881-80671-00 SERVICE CARD ( 20-24 CRT) 886-31207-32A CARTON BOX (TK2416,PRIMA) 887-21097-P0 PE/PEARL COTTONPALSTIC BAG 1200X1050 887-21097-P1 PE/PEARL COTTONPALSTIC BAG 1200X1050 887-21135-00 CLASPER PALSTIC BAG 230X330X0.1 887-21135-03 CLASPER PALSTIC BAG 230X330X0.1...
  • Page 17 C812 C814 C824 C826 CKF472K1BA-FC CERAMIC CAPACITOR 50V 4700P C324 C336 CKMX102M301ND CERAMIC CAPACITOR AC 400V 1000P C515 CKMX471K301ND CERAMIC CAPACITOR AC 400V 470P C515A CKMX471K301ND CERAMIC CAPACITOR AC 400V 470P C598,C598B CKP101K1BA-FC CERAMIC CAPACITOR 500V 100P C482 CKW102K2BJ-ND CERAMIC CAPACITOR 1KV 1000P C503 C504 C505 C506 CKW471K2RA-ND CERAMIC CAPACITOR 1KV 470P...
  • Page 18 GACV5001----A 5S SOCKET ( SMALL XH ) XS301 GBAVL007----A CRT SOCKET(THICK GZS10-2-108 XS901 GBBB9-06----8 AV SOCKET XS801 GBCH5001----Y S END XS861 HAA0004-----G SMIT-SS-112DM(27ohm) CN2001 JS2451-B002-A 2P LINE(450mm) XS2003 JS4501-B251-A DY LINE(500mm) JW2301-E001-P 2P LINE(300mm XH-D2) XS201 JW4451-J001-A 4P LINE(450mm D2-D2) XP402 JW5501-E001-A 5P LINE(500mm XH-D2)
  • Page 19 Q2PA1015-GNF- TRANSISTOR 2PA1015G V171 V491 Q2PA1015-GNF- TRANSISTOR 2PA1015G V2001 Q2PC1815-GNF- TRANSISTOR 2PC1815 G V121 V122 V173 V351 V352 V395 V504 V801 V490 Q2PC1815-GNF- TRANSISTOR 2PC1815 G V01,V02 Q2SB1443--NN- TRANSISTOR 2SB1443 TV2 Q V542 QBF421----NN- TRANSISTOR BF421 V913 V923 V933 QBF422----NN- TRANSISTOR BF422 V912 V922 V932 QFJAF6810-NN-...
  • Page 20 XFS031-----NB SAWF M1967 Z301 XX-021-----NV CR.OSC(12M 18P) X761 569-18101-00U FUSE 51S 5A/125V 364-36101-00 6-PINS CONNECTORS TJC3-06A XS895 459-2156K-00 CERAMIC CAPACITOR CT1-06-2B4-63V-561K C381 459-2310R-00 CERAMIC CAPACITOR CT1-08-2F4-63V-103Z C472 459-5239K-00 CERAMIC CAPACITOR RQC12B392K-H46CA C451 464-6D647-M0 ELECTROLYTIC CAPACITOR CD110-16V-47uF-M C804 464-6D747-M0 ELECTROLYTIC CAPACITOR CD110-16V-470uF-M C801 464-60510-M0 ELECTROLYTIC CAPACITOR CD110-50V-1uF-M...
  • Page 21 462-00268-H02 POLYESTER CAPACITOR CL11-100V-6800PF-J C158 464-6D710-M02 ELECTROLYTIC CAPACITOR CD110-16V-100uF-M C536 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R301A 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R302A 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R723A 467-1C110-H03 CARBON RESISTOR 1/6W-100Ω-J R724A 467-1C168-H03 CARBON RESISTOR 1/6W-680Ω-J R463 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R380 467-1C220-H03 CARBON RESISTOR 1/6W-2K-J R540...
  • Page 22 462-00333-K02 POLYESTER CAPACITOR CL11-100V-0.033uF-K C544 462-00347-K02 POLYESTER CAPACITOR CL11-100V-0.047uF-K C427 462-00410-K02 POLYESTER CAPACITOR CL11-100V-0.1uF-K C460 464-6C710-M02 ELECTROLYTIC CAPACITOR CD110-10V-100uF-M C548 464-6D610-M02 ELECTROLYTIC CAPACITOR CD110-16V-10uF-M C163A 464-6D610-M02 ELECTROLYTIC CAPACITOR CD110-16V-10uF-M C172 464-6D610-M02 ELECTROLYTIC CAPACITOR CD110-16V-10uF-M C301 464-6D610-M02 ELECTROLYTIC CAPACITOR CD110-16V-10uF-M C307 464-6D610-M02 ELECTROLYTIC CAPACITOR CD110-16V-10uF-M C322...
  • Page 23 467-1C010-H03 CARBON RESISTOR 1/6W-10Ω-J R312 467-1C010-H03 CARBON RESISTOR 1/6W-10Ω-J R871 467-1C022-H03 CARBON RESISTOR 1/6W-22Ω-J R914 467-1C022-H03 CARBON RESISTOR 1/6W-22Ω-J R924 467-1C022-H03 CARBON RESISTOR 1/6W-22Ω-J R934 467-1C033-H03 CARBON RESISTOR 1/6W-33Ω-J R806 467-1C047-H03 CARBON RESISTOR 1/6W-47Ω-J R368 467-1C047-H03 CARBON RESISTOR 1/6W-47Ω-J R708 467-1C047-H03 CARBON RESISTOR 1/6W-47Ω-J R911...
  • Page 24 467-1C139-H03 CARBON RESISTOR 1/6W-390Ω-J R322 467-1C147-H03 CARBON RESISTOR 1/6W-470Ω-J R308 467-1C168-H03 CARBON RESISTOR 1/6W-680Ω-J R316 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R351 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R481 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R128 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R129 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R369 467-1C210-H03 CARBON RESISTOR 1/6W-1K-J R460...
  • Page 25 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R127 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R163 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R427 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R461 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R543 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R548 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R551 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R704 467-1C310-H03 CARBON RESISTOR 1/6W-10K-J R709...
  • Page 26 467-1C427-H03 CARBON RESISTOR 1/6W-270K-J R174 467-1C456-H03 CARBON RESISTOR 1/6W-560K-J R465 467-1DA27-H03 CARBON RESISTOR RT14-1/4W-2.7Ω-J R468 467-1D001-H03 CARBON RESISTOR RT14-1/4W-1Ω-J R404 467-1D027-H03 CARBON RESISTOR RT14-1/4W-27Ω-J R561 467-1D110-H03 CARBON RESISTOR RT14-1/4W-100Ω-J R486 467-1D222-H03 CARBON RESISTOR RT14-1/4W-2.2K-J R161 467-1D227-H03 CARBON RESISTOR RT14-1/4W-2.7K-J R512 467-1D310-H03 CARBON RESISTOR RT14-1/4W-10K-J R485...
  • Page 27 JUMPER WIRE W443 JUMPER WIRE W466 JUMPER WIRE W467 JUMPER WIRE W471 JUMPER WIRE W493 JUMPER WIRE W531 JUMPER WIRE W532 JUMPER WIRE W554 JUMPER WIRE W555 JUMPER WIRE W562 JUMPER WIRE W563 JUMPER WIRE W564 JUMPER WIRE W581 JUMPER WIRE W652 JUMPER WIRE W721...
  • Page 28 JUMPER WIRE W263 JUMPER WIRE W421 JUMPER WIRE W435 JUMPER WIRE W472 JUMPER WIRE W342 JUMPER WIRE W484 JUMPER WIRE W485 JUMPER WIRE W643 JUMPER WIRE W653 JUMPER WIRE W655 JUMPER WIRE W741 JUMPER WIRE W921 JUMPER WIRE W922 JUMPER WIRE W650 JUMPER WIRE W900...
  • Page 29 JUMPER WIRE W453 JUMPER WIRE W463 JUMPER WIRE W464 JUMPER WIRE W465 JUMPER WIRE W641 JUMPER WIRE W642 JUMPER WIRE W644 JUMPER WIRE W656 JUMPER WIRE W672 JUMPER WIRE W840 JUMPER WIRE R520 JUMPER WIRE W221 JUMPER WIRE W362 JUMPER WIRE W363 JUMPER WIRE W364...
  • Page 30 667-TK2525-29A SIDE AV BOARD ASS'Y 364-93202-00 AV JACK AV306-2 XAA1 655-6E301-24 (6-PINS) LEAD WITH HOUSING XAA3 782-Q2455-2900 SIDE AV PCB 808-6B786-07 AV BAFFLE (SILK-SCREEN ) 851-53010-31 SCREW SJ2825 ST3X10FT-D.Zn 868-10043-00 WASHER (14X4X1 METAL) 870-20843-01 SIDE AV BRACKET ( MOLD DARK GRAY ) JUMPER WIRE LAA1 JUMPER WIRE...
  • Page 31 464-6D610-M0 ELECTROLYTIC CAPACITOR CD110-16V-10uF-M 464-6D710-M0 ELECTROLYTIC CAPACITOR CD110-16V-100uF-M 464-60433-M0 ELECTROLYTIC CAPACITOR CD110-50V-0.33uF-M 464-60433-M0 ELECTROLYTIC CAPACITOR CD110-50V-0.33uF-M 464-60510-M0 ELECTROLYTIC CAPACITOR CD110-50V-1uF-M 464-60510-M0 ELECTROLYTIC CAPACITOR CD110-50V-1uF-M 464-60510-M0 ELECTROLYTIC CAPACITOR CD110-50V-1uF-M 464-60510-M0 ELECTROLYTIC CAPACITOR CD110-50V-1uF-M 464-60522-M0 ELECTROLYTIC CAPACITOR CD110-50V-2.2uF-M 464-60522-M0 ELECTROLYTIC CAPACITOR CD110-50V-2.2uF-M 464-60522-M0 ELECTROLYTIC CAPACITOR CD110-50V-2.2uF-M 464-60522-M0...
  • Page 33 TK2426 PART LIST OF EXPLODED VIEW DESCRIPTION PART# SCREW 851-24020-14 CRT BOARD No number RUBBER RING 785-30002-13B 335-2512D-00U SCREW 851-53008-31 SPEAKER 384-40908-B0 WASHER 868-20217-00 SPEAKER BRACKET 870-20700-00A STANDBY BUTTON BOARD 667-TK24261-05 ASSEMBLY BUTTON CAP 877-60560-00 BUTTON BOARD ASSEMBLY 667-TK2426-05 LED COLUMN 700-60160-00 FRONT CABINET 611-D26X0J0H2B...
  • Page 34 SCHEMATIC DIAGRAM CAUTION:all the parts in the schematic diagram marked with shodows and the signs of are extremely 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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Tk2426