Teac-CT-M4828-H-Service-Manual电路原理图.pdf

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1、 SERVICE MANUAL 48cm CTV Effective: MARCH 2000 CTM4828HSERV RadioFans.CN 收音机爱 好者资料库 SERVICE MANUAL 14 20 21 SOLID STATE Color Television Receiver ART-TECH. TV. This manual is the latest at the time of printing, and does not include the modification which may be made after the printing, by the consta

2、nt improvment of product. Checked by : _ Document : _Approved by : _Date : _SM - 32PM ( Sunny Cheung ) (PAK FUNG PAN WONG YIM FAI) 2 TOSHIBA I C IC PAL SECAM VERSION 5-11-99 RadioFans.CN 收音机爱 好者资料库 CONTENTS 1. SPECIFICATION. 2. BLOCK DIAGRAM. 3. ALIGMENT INSTRUCTION. 4. VOLTAGE TABLE. 5. IC601 DATA.

3、 6. WIRING DIAGRAM. This manual is the tatest at the time of Printing , and does not include the moditieation Which may be made ofter the Printing, by the Constant improvement of Product. SM-32PM P.1 ITEMS OF MEASUREMENT VIDEO SENS. AT S/N 30db SOUND SENS. AT S/N 30db AGC CHARACTER SELECTIVITY -1.5

4、MHz + 8 MHz COLOR SENS. COLOR LOCK - IN RANGE VERTICAL LOCK - IN RANGE HORIZONTAL LOCK - IN RANGE MAX BRIGHTNESS MAX OUTPUT POWER OUTPUT POWER AT 10% THD BUZZ AFC RANGE MIN. VOL HUM RESOLUTION HORIZONTAL VERTICAL LINEARITY DISTORTION VERTICAL HORIZONTAL RASTER DISTORTION REMOTE CONTROL DISTANCE ANGL

5、E POWER CONSUMPTION ( AT NORMAL CONDITION ) POWER CONSUMPTION ( AT MAX. CONDITION ) CONVERGENCE DISLOCATION AT AREA A AREA B ( see fig.1 ) VIDEO INPUT LEVEL : 1.0V P-P + 3dB AUDIO INPUT LEVEL : 0.5V RMS + 3dB L - VHF H - VHF UHF L - VHF H - VHF UHF BA Fig.1 UNIT dbuv dbuv dbuv dbuv dbuv dbuv db db d

6、b dbuv Hz Hz Hz cd / m2 W W db MHz MHz mV LINES LINES % % % METER DEGREE WATTS WATTS % % H STANDARD 57 57 60 42 42 60 35 40 +300 6 400 140 1 0.7 +1 -0.5 300 400 10 10 5 +15 60 70 0.4 0.8 MODEL : 14 SM - 32PM P.2 ITEMS OF MEASUREMENT VIDEO SENS. AT S/N 30db SOUND SENS. AT S/N 30db AGC CHARACTER SELEC

7、TIVITY -1.5 MHz + 8 MHz COLOR SENS. COLOR LOCK - IN RANGE VERTICAL LOCK - IN RANGE HORIZONTAL LOCK - IN RANGE MAX BRIGHTNESS MAX OUTPUT POWER OUTPUT POWER AT 10% THD BUZZ AFC RANGE MIN. VOL HUM RESOLUTION HORIZONTAL VERTICAL LINEARITY DISTORTION VERTICAL HORIZONTAL RASTER DISTORTION REMOTE CONTROL D

8、ISTANCE ANGLE POWER CONSUMPTION ( AT NORMAL CONDITION ) POWER CONSUMPTION ( AT MAX. CONDITION ) CONVERGENCE DISLOCATION AT AREA A AREA B ( see fig.2 ) VIDEO INPUT LEVEL : 1.0V P-P + 3dB AUDIO INPUT LEVEL : 0.5V RMS + 3dB L - VHF H - VHF UHF L - VHF H - VHF UHF H BA Fig.2 STANDARD 57 57 60 42 42 60 3

9、5 40 +300 6 400 120 1.8 1.3 +1 -0.5 300 400 10 10 5 +15 70 85 0.4 + 10% / -20% SPECIFICATION SYSTEM : CHANNEL L - VHF : H - VHF : UHF : VIF FREQUENCY : SIF FREQUENCY : CHROMA IF FREQUENCY : INTER-CARRIER FREQUENCY : SCANNING HORIZONTAL : VERTICAL : ANTENNA INPUT IMPEDANCE : CRT : PAL - BG 2 - 4 5 -1

10、2 21 - 69 38.9 33.4 34.47 5.5 PAL - I (UK) 21 -69 39.5 33.5 35.07 6 PAL - SECAM - BG / DK ( HYPER ) 1 - 5 6 - 12 21 - 69 38.9 32.4 33.4 34.47 34.47 6.5 5.5 PAL - BG ( CATV ) E2 - S2 E5 - S20 E21 - E69 38.9 33.4 34.47 5.5 PAL - I / I 4 - 13 21 - 69 38.9 32.9 34.47 6.0 PAL - SECAM - BG / DK 1 - 5 6 -

11、12 21 - 69 38.0 31.5 32.5 33.57 33.57 6.5 5.5 PAL - BG ( HYPER ) E2 - S10 E5 - S41 E21 - E69 38.9 33.4 34.47 5.5 L FB - FC 32.7 39.2 6.5 CH CH CH MHz MHz MHz MHz 15625 LINE 50 Hz 75 OHM 14 SECAM - L 1 - Q 21 - 69 38.9 32.4 34.47 6.5 MODEL : 14 SM -32PM P.4 SUPPLY VOLTAGE : AC220V 50Hz + 10% / -20% S

12、PECIFICATION SYSTEM : CHANNEL L - VHF : H - VHF : UHF : VIF FREQUENCY : SIF FREQUENCY : CHROMA IF FREQUENCY : INTER-CARRIER FREQUENCY : SCANNING HORIZONTAL : VERTICAL : ANTENNA INPUT IMPEDANCE : CRT : PAL - BG 2 - 4 5 -12 21 - 69 38.9 33.4 34.47 5.5 PAL - I (UK) 21 -69 39.5 33.5 35.07 6 PAL - SECAM

13、- BG / DK ( HYPER ) 1 - 5 6 - 12 21 - 69 38.9 32.4 33.4 34.47 34.47 6.5 6.5 PAL - BG ( CATV ) E2 - S2 E5 - S20 E21 - E69 38.9 33.4 34.47 5.5 PAL - I / I 4 - 13 21 - 69 38.9 32.9 34.47 6.0 PAL - SECAM - BG / DK 1 - 5 6 - 12 21 - 69 38.0 31.5 32.5 33.57 33.57 6.5 5.5 PAL - BG ( HYPER ) E2 - S10 E5 - S

14、41 E21 - E69 38.9 33.4 34.47 5.5 L FB - FC 32.7 39.2 6.5 CH CH CH MHz MHz MHz MHz 15625 LINE 50 Hz 75 OHM 20 - 21 SECAM - L 1 - Q 21 - 69 38.9 32.4 34.47 6.5 SM - 32PM P.5 MODEL : 20 - 21 SM-32PM P.6 ALIGNMENT INSTRUCTION I.PLEASE READ BEFORE ATTEMPTING SERVICE 1.Do not connect any antenna plug dire

15、ctly to the tuner socket and do not connect any equipments directly to the TV chassis,otherwise it may be burnt out the TV or equipment,execept an isolation transformer is used for main power source or the TV sets. 2.Never disconnect any leads while receiver is in operation. 3.Disconnect all power b

16、efore attempting any repairs. 4.Do not short any portion of the circuit while power is on. 5.For safety reasons,all parts replaced should be identical(for parts and part numbers see parts list). 6.Before alignment the set must be pre-heated for 30 minutes or more and erase magnetism thoroughly from

17、CRT front chassis frame by erase coil. II.TEST EQUIPMENT 1.Colour Bar/Dot/Cross Hatch 2.Oscilloscope 3.Vacuum Tube Voltmeter 4.Volt Ohumeter I. B+ ADJUSTMENT 1.Connect a digital voltmeter to B+ and Ground. 2.Set Brightness Contrest to minimum. 3.Adjust Screen Volume on FBT until the picture can just

18、 been seen. 4.Adjust VR901 to obtain a reading of 112 + 0.5V(FOR samsung CRT). II. AFC ALIGNMENT 1.Disconnect the soldering pad F. 2.Input the signal from Pattern Generator ( IF 38.9MHz ) colour bar to R101 and GND. 3.Adjust the T101 until the colour bar show on the screer. 4.Select SELF VCOin D-MOD

19、E. 5.Press the AFC button on the handset. 6.About few seconds screen willbe show AFT OK. *REMARK: No this factory on Normal R.C. III.AGC ALIGNMENT 1.Receive CH69 (UHF) and input filed strangth. TUNER INput Signal 62 + 3dB, 2.Connect a digital Voltmeter between the TUNER AGC Terminal and Ground. 3.Se

20、lect RAGC item,Adjust the value to 3F,and then adjust the AGC value obtain the voltage drop down 0.4V. Remark: 1 The drop down voltage should be more than and tends to 0.4V. 2 No observable noise can be seen. IV.VERTICAL LINEARTY ADJUSTMENT 1.PAL (50Hz)Adjustment (1).Reneive Crosshatch Pattern (50Hz

21、) . (2).Select VLIS item adjust value to normal regular picture. 2.NTSC (60Hz) Adjustment. (1).Reneive Cross hatch Patter (60Hz). (2).Select VILN item adjust value to normal regular picture. 3.Repeat 1.2. receive Cross hatch 50Hz and 60Hz is same picture. V. VERTICAL HEIGHT ADJUSTMENT 1.PAL (50Hz) A

22、djust . (1).Recive Mono scope Patter (50Hz). (2).Select HITS item adjust value to normal regular picture. 2.NTSC (60Hz). (1).Receive Mono scope Patter (60Hz). (2).Select HIT item adjust value to normal regular picture 3.Repeat 1.2. receive Mono Scope Patter 50Hz and 60Hz is same picture. 5.High Volt

23、age Meter 6.Ampere Meter (0.5 Class,DC 3mA Max.) 7.Demagnetizing Coil 8.Closed Caption Encoder 9.High Pot Tester. VI.VERTICAL S-CORRECTION ADJUSTMENT 1. Receive Cross hatch Pattern 2. Select VSC item adjust value to normal,regular picture. VERTICAL CENTER ADJUSTMENT 1. PAL (50Hz) Adjustment (1). Rec

24、eive Monscope Pattern (50Hz). (2). Select VP50 item adjust value to obtain the picture at center . 2. NTSC (60Hz) Adjustment (1). Receive Monscope Pattern (60Hz). (2). Select VP60 item adjust value to obtain the picture at center. 3. Repeat 1.2. receive Mono Sope Pattern 50Hz and 60Hz is same pictur

25、e center. VII. HORIZONTAL PHASE ADJUSTMENT 1.PAL(50Hz)Adjustment. (1).Receive Mono Scope Pattern (50Hz). (2).Select HPS item adjust value to normal regular Picture. 2.NTSC(60Hz) (1).Receive Mono Scope Pattern (60Hz). (2).Select HPOS item adjust value to normal regular Picture. 3.Repeat 1. 2. receive

26、 Mono Scope Pattern (50Hz) and (60Hz) is Same Picture. SM-32PM P.7 DISTRICT CENTRE (mm) POSITION LIMIT (mm) SCANNING SIZE (%) SCANNING SIZE LIMIT (%) THAILAND FRANCE GERMANY *GROUP A *GROUP B *GROUP C -1 +3 +3 -2 0 +3 0 -2 0 +5 0 +5 -5 -1 -2 +2 0 +5 90 90 90 90 90 90 88 92 88 94 90 95 88 94 88 94 88

27、 94 mm -5 -4 -3 -2 -1 0 1 2 3 4 5 mm LEFTRIGHT CENTER OF THE SCREEN CRT MUST FACE TO EAST REMARK : 1. SUITABLE FOR 14 OR ABOVE TV. 2. Adjust the centre position must take the upper side of monoscope pattern for standard. 3. Group A : AUSTRALIA, NEW ZEALAND, TAHITI. 4. Group B : HONG KONG, CHINA, AME

28、RICA, CANADA, MALAYSIA, MEXICO. 5. Group C : ENGLAND, ITALY, GERMANY, RUSSIA, SWITZERLAND, JUGOSLAVIA, SPANISH. If the above countries are not include, please consult to Engineering Dept. SM-32PM P.8 VIII. WHITE BALANCE ALIGNMENT STEP (Deqauss the picture by deqaussing coil if necessary) 1. Disconne

29、ct the any input signal,set the blue black OFF. 2. Enter to D HODE. 3. Adjust the RCUT,GCUT,BCUT value to 80,GDRV,BDRV to 45,BRTS to CO. 4. Adjust the BRIGHT,CONT to min. 5. Akjust the screen VR (on the FBT) until the show cannot just be screen. 6. Connect the VOLT meter + to CRT BOARD G2,(-) to GND

30、 and get the reading value. 7. Adjust the screen VR lead the reading value reduce 25 + 5v 8. Adjust the BRTS set to F6,and set BRIGHT,CONT to mid. 9. 10. IX. SUB-BRIGHTNESS ALIGNMENT 1. Receive a Colour Bar Pattern. 2. Press PICTURE mode select BRIGHTNESS, CONTRAST adjust value to minimum. 3. Select

31、 BRTS in D-MODE. 4. Adjust value the brightness bar can just be seen. X. FOCUS ALIGHMENT 1. Set the Brightness and Contrast to middle position. 2. Receive a Monoscope Pattern. 3. Adjust focus control to obtain sharpest picture. CCCCC XI. HIGH POT TESTING 1) Short the L-pole and N-pole of AC line cor

32、d. 2) Switch on the power switch of the TV Set. 3) Connect The High Pot Tester (-) to L and N pole, (+) to the METAL PART of CABINET. REMARK: (1). If no other specity,the strength of input signal should be 70dB + 10dB. (2). The HIGH POT TESTER can have 3.5KV 10 SEC. UL1.0KV 5mA / 1MIN 1.25KV 1 SEC.

33、11. 12. 13. 14. 15. 16. Model: 2 1 2 1 2 1 2 1 2 1 Chassis:Chassis:Chassis:Chassis:Chassis: I C technology.I C technology.I C technology.I C technology.I C technology. Picture Tube: SAMSUNG,SAMSUNG,SAMSUNG,SAMSUNG,SAMSUNG, Type:A51KQK99X01, S/N:2090344252 2 2 2 2 2 Service Mode DataService Mode Data

34、Service Mode DataService Mode DataService Mode Data 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3 4 4 4 4 4 5 5 5 5 5 6 6 6 6 6 7 7 7 7 7 8 8 8 8 8 9 9 9 9 9 1010101010 1111111111 1212121212 1313131313 1414141414 1515151515 1616161616 1717171717 1818181818 1919191919 2020202020 2121212121 2222222222 2323232323 2424

35、242424 2525252525 2626262626 2727272727 2828282828 2929292929 3030303030 3131313131 Item Parameter C ValueItem Parameter C ValueItem Parameter C ValueItem Parameter C ValueItem Parameter C Value RCUTRCUTRCUTRCUTRCUT GCUTGCUTGCUTGCUTGCUT BCUTBCUTBCUTBCUTBCUT GDRVGDRVGDRVGDRVGDRV BDRVBDRVBDRVBDRVBDRV

36、CNTXCNTXCNTXCNTXCNTX BRTCBRTCBRTCBRTCBRTC COLCCOLCCOLCCOLCCOLC TNTCTNTCTNTCTNTCTNTC COLPCOLPCOLPCOLPCOLP COLSCOLSCOLSCOLSCOLS SCNTSCNTSCNTSCNTSCNT CNTCCNTCCNTCCNTCCNTC CNTNCNTNCNTNCNTNCNTN BRTXBRTXBRTXBRTXBRTX BRTNBRTNBRTNBRTNBRTN COLXCOLXCOLXCOLXCOLX COLNCOLNCOLNCOLNCOLN TNTXTNTXTNTXTNTXTNTX TNTNTN

37、TNTNTNTNTNTNTN ST3ST3ST3ST3ST3 SV3SV3SV3SV3SV3 ST4ST4ST4ST4ST4 SV4SV4SV4SV4SV4 SHPXSHPXSHPXSHPXSHPX SHPNSHPNSHPNSHPNSHPN TXCXTXCXTXCXTXCXTXCX RGCNRGCNRGCNRGCNRGCN VMOVMOVMOVMOVMO VM1VM1VM1VM1VM1 HPOSHPOSHPOSHPOSHPOS I I I I I I I I I I I I I I I I I I I I I I I I I A A A A A A A A A A A A A A A A A

38、A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A I I I I I I I I I I N N N N N N N N N N I I I I I 8383838383 D8D8D8D8D8 8585858585 4949494949 4949494949 3A3A3A3A3A 47474747

39、47 3030303030 3A3A3A3A3A 3333333333 2E2E2E2E2E 0E0E0E0E0E 2B2B2B2B2B 0606060606 2323232323 2121212121 2525252525 0000000000 3030303030 3030303030 0909090909 0909090909 0909090909 1010101010 1212121212 0505050505 2A2A2A2A2A 1E1E1E1E1E 2C2C2C2C2C 0000000000 0606060606 A.B. Research and Development Dep

40、artmentA.B. Research and Development DepartmentA.B. Research and Development DepartmentA.B. Research and Development DepartmentA.B. Research and Development Department1/21/21/21/21/2 SM-32PM P.9 o o o o o d d d d d e e e e e SAMSUNGSAMSUNGSAMSUNGSAMSUNGSAMSUNG 21 21 21 21 21 SM-32PM P.10 3232323232

41、3333333333 3434343434 3535353535 3636363636 3737373737 3838383838 3939393939 4040404040 4141414141 4242424242 4343434343 4444444444 4545454545 4646464646 4747474747 4848484848 4949494949 5050505050 5151515151 5252525252 5353535353 5454545454 5555555555 5656565656 5757575757 5858585858 5959595959 606

42、0606060 6161616161 6262626262 6363636363 6464646464 6565656565 6666666666 6767676767 6868686868 6969696969 7070707070 7171717171 7272727272 VP50VP50VP50VP50VP50 HITHITHITHITHIT HPSHPSHPSHPSHPS VP60VP60VP60VP60VP60 HITSHITSHITSHITSHITS VLINVLINVLINVLINVLIN VSCVSCVSCVSCVSC VLISVLISVLISVLISVLIS DPCDPCD

43、PCDPCDPC DPCSDPCSDPCSDPCSDPCS KEYKEYKEYKEYKEY KEYSKEYSKEYSKEYSKEYS WIDWIDWIDWIDWID WIDSWIDSWIDSWIDSWIDS VCPVCPVCPVCPVCP CNRCNRCNRCNRCNR HCPHCPHCPHCPHCP SBYSBYSBYSBYSBY SRYSRYSRYSRYSRY RAGCRAGCRAGCRAGCRAGC AFTAFTAFTAFTAFT HAFCHAFCHAFCHAFCHAFC V25V25V25V25V25 V50V50V50V50V50 BRTSBRTSBRTSBRTSBRTS VM2VM

44、2VM2VM2VM2 MOD0MOD0MOD0MOD0MOD0 MOD1MOD1MOD1MOD1MOD1 MOD2MOD2MOD2MOD2MOD2 SELFSELFSELFSELFSELF SELF VCOSELF VCOSELF VCOSELF VCOSELF VCO SELF AGCSELF AGCSELF AGCSELF AGCSELF AGC SELF BRTCSELF BRTCSELF BRTCSELF BRTCSELF BRTC SELF CNTCSELF CNTCSELF CNTCSELF CNTCSELF CNTC SELF TNTCSELF TNTCSELF TNTCSELF

45、 TNTCSELF TNTC SELF COLSELF COLSELF COLSELF COLSELF COL LOGOLOGOLOGOLOGOLOGO LANGLANGLANGLANGLANG IF FREQIF FREQIF FREQIF FREQIF FREQ OSDOSDOSDOSDOSD OPTOPTOPTOPTOPT I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I N N N N N N N N N N N N N N N N N N N N N N N N N N N

46、N N N N N N N N N N N N N N N N N N A A A A A A A A A A I I I I I N N N N N N N N N N A A A A A A A A A A I I I I I N N N N N A A A A A A A A A A N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N N A A A A A A A A A A A A A A A I I I I I N N N N N 0303030303 1616161616 0404040404 0000000000 0202020202 0C0C0C0C0C 0808080808 FFFFFFFFFF 0000000000 0000000000 0000000000 0000000000 0000000000 0000000000