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SERVICE MANUAL

25"/29"/34"/38"

SOLID STATE

Color Television

Receiver

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 constant improvment of product.

Checked by : ________________________________________________________

Document : ___________

(NTSC-M MTS STEREO)

TOSHIBA I C IC

Approved by : ___________

Date ___________

SM - 74PM

( WU GUO XIAN)

25-01-2002

TBTMP88PS38N

Содержание Solid State

Страница 1: ...es not include the modification which may be made after the printing by the constant improvment of product Checked by ________________________________________________________ Document ___________ NTSC M MTS STEREO TOSHIBA I C IC Approved by ___________ Date ___________ SM 74PM WU GUO XIAN 2 25 01 2002 TB1253AN TMP88PS38N ...

Страница 2: ...ALIGMENT INSTRUCTION 4 VOLTAGE TABLE 5 IC601 DATA 6 TROUBLE SHOOTING This manual is the latest at the time of Printing and does not include the modification Which may be made ofter the Printing by the Constant improvement of Product SM 74PM P 1 ...

Страница 3: ... 30db L VHF 57 dbuv H VHF 57 dbuv UHF 60 dbuv 11 SOUND SENS AT S N 30db L VHF 42 dbuv H VHF 42 dbuv UHF 48 dbuv 12 AGC CHARACTER 60 db 13 SELECTIVITY 1 5 MHz 35 db 8 MHz 40 db 14 COLOR SENS 45 dbuv 15 COLOR LOCK IN RANGE 300 Hz 16 VERTICAL LOCK IN RANGE 6 Hz 17 HORIZONTAL LOCK IN RANGE 400 Hz 18 MAX BRIGHTNESS 80 80 70 65 cd m2 19 MAX OUTPUT POWER MAX OUTPUT POWER PER EACH CHANNEL 20 OUTPUT POWER ...

Страница 4: ...ION AT MAX CONDITION 29 CONVERGENCE DISLOCATION AT AREA A AREA B STANDARD UNIT 30 VIDEO INPUT LEVEL 1 0Vp p 3dB VIDEO OUTPUT LEVEL 1 0Vp p 3dB 31 AUDIO INPUT LEVEL 0 5VRms 3dB AUDIO OUTPUT LEVEL 0 5VRms 3dB 5 5 15 120 150 0 4 0 8 METER DEGREE WATTS WATTS B A H SM 74PM P 3 25 29 34 38 120 150 170 150 180 180 ...

Страница 5: ...BLOCK DIAGRAM SM 74PM P 4 ...

Страница 6: ...44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 VSS N C RMT OUT MUTE EXT MUTE N C POWER LED N C N C SCL 0 SDA 0 MAIN SYNC N C N C AFT1 IN KEY A KEY B SGV N C I IC 602 TMP88PS38N 10 11 12 13 14 15 16 17 18 19 20 21 1 2 3 4 5 6 7 8 9 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 VCC VIN CIN GND SDA1 SCL1 SYNC AV1 RMT N C RESET XOUT XIN TEST AVSS VCC VD HD Y B G R 1 2 3 4 GND G...

Страница 7: ...TV Vout1 Lout1 ROUT1 C OUT VCC Cin RinV2 Yin 12 13 14 15 16 17 18 29 28 27 26 25 24 23 22 21 20 19 CinS1 LinS1 Y VinS2 RinS2 CinS2 I O1 I O2 Y OUT 36 35 34 33 32 31 30 LinV2 VinV2 Address Sync out SDA SCL GND IC802 TC94A45P 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 GND VCC VRB VRT VIDEO IN BIAS1 GND GND VCC Y OUT BIAS2 C OUT BIAS3 VFIL CKIN GND ...

Страница 8: ...obtain a reading of 143 0 5V III FACTORY ADJUSTMENT SERVICE REMOTE CONTROL Press SERVICE REMOTE button to direct select item 1 Use or button select item 2 Use button to adjust item value REMARK Normal REMOTE CONTROL does not have this function IV AGC ALIGNMENT 1 Receive CH69 UHF and input field strength 60 dBuV 2dB 2 Connect a digital Voltmeter between the TUNER AGC Terminal and Ground 3 Select R ...

Страница 9: ...ry 1 Receive a Black and White Pattern 2 Select Remote 2 and 3 button adjust GCUT and BCUT to minimum value Press 1 button adjust RCUT to middle value 3 Press Picture mode select Brightness and Contrast adjust value to minimum 4 Turn off the screen voltage ON FBT 5 Press Remote button 6 Turn on the screen control volume on Flyback transformer a horizontal red line appear 7 Press 2 button to obtain...

Страница 10: ...SC STEREO SAP TEST 1 L 300Hz and R 3 1KHz 14 Modulation 3 Into FACTORY SERVICE mode press REMOVE CONTROL Enter Factory mode Press S MPX to start automatic alignment SM 74PM P 9 XVII V CHIP SECRET CODE Use secret code 3681 to enter the parental guideness menu and Charge the secret code to 0000 XXI SERVICE ITEM ADJUST Continue pressing VOLUME button on the TV set to MIN sound level then press RECALL...

Страница 11: ...should be 70dB 10dB 2 The High Pot Tester can have 5 tolerance DISTRICT CENTRE POSITION mm LIMIT mm SCANNING SIZE SCANNING SIZE LIMIT GROUP A GROUP B GROUP C 2 0 3 5 1 2 2 0 5 90 90 90 88 94 88 94 88 94 REMARK 1 Group A AUSTRALIA NEW ZEALAND TAHITI SOUTH AMERICA 2 Group B HONG KONG CHINA AMERICA CANADA MALAYSIA MEXICO 3 Group C ENGLAND ITALY GERMANY RUSSIA SWITZERLAND JUGOSLAVIA SPANISH If the abo...

Страница 12: ... 5 4 2 4 2 4 2 4 NC 4 4 1 4 2 4 2 3 6 2 5 4 2 0 4 0 4 1 27 28 19 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 IC 001 NOTE VOLTAGE ARE TAKEN UNDER TUNED CONDITION WITH CONTRAST BRIGHTNESS COLOR SIGNAL INPUT CHANNEL SETTING SIGNAL PATTERN Maximum Position Maximum Position Maximum Position 70dB 10dB The Last Channel of UHF High Colour Bar 3 8 8 5 4 8 4 4 2 4 2 4 2 3 5 7 1 4 3 ...

Страница 13: ...4 5 6 7 8 9 1 2 0 03 GND 21 3 0 03 20 3 10 8 21 5 1 2 3 4 5 6 7 SM 74PM P 12 ST24C08 STRS6709 6 7 8 9 0 0 3 1 7 8 5 LA4445 LA7841 IC801 IC 801 GND 2 2 2 7 2 3 1 3 GND GND 4 9 GND 2 2 1 9 3 3 3 7 1 6 3 4 4 8 TC90A45P 0 NC GND 4 1 4 1 NC 1 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GND GND GND GND 5 5 GND 5 TA1219AN 6 75 2 85 NC NC 5 NC NC NC 5 ...

Страница 14: ... Position Maximum Position Maximum Position 70dB 10dB The Last Channel of UHF High Colour Bar Q502 Q503 Q504 Q505 Q506 Q508 Q601 Q602 9 1 9 1 3 3 1 3 1 0 4 3 8 0 04 0 65 0 47 4 8 0 078 0 77 IN0 03 109 7 108 7 8 6 8 6 8 6 GND 4 5 5 0 04 4 6 5 4 5 0 OUT15 8 0 03 8 6 8 6 8 6 8 6 8 6 8 6 2 5 2 6 2 6 1 1 4 53 GND GND GND 4 1 GND GND GND GND 3 3 2 63 2 57 3 2 SM 74PM P 13 8 6 1 3 7 8 6 4 2 4 2 3 16 3 2 ...

Страница 15: ...TN ST3 SV3 SHPX SHPN TXCX RGCN ABL DCBS CLTM CLVO CLVD HPOS HIT VP60 VLIN VSC 28 28 2D 37 2D 7F 2D 44 36 10 08 3F 08 20 20 35 00 28 28 30 30 1A 1A 32 16 27 5B 08 08 08 11 23 02 09 3E 98 70 45 45 7F 2D 35 36 10 08 3F 08 20 20 35 00 28 28 30 30 1A 1A 21 16 27 5B 08 08 08 14 12 00 0C 08 VSM2 VSM3 DPC KEY WID CNR VEHT HEHT RAGC HAFC V25 V50 BRTS FLGO VSM VSM1 0D 1C 25 0F 05 20 1F 14 08 01 38 09 22 3A ...

Страница 16: ... and of C914 Check the PIN 1 of IC901 Check the PIN 9 of IC901 Check the voltage between and of C991 1 Check F901 IF F901 is broken replace it after checking this BR901 Check T901 Check Q901 ZD901 IC901 Check FB904 D906 YES YES YES NO NO NO NO SM 74PM P15 ...

Страница 17: ...oltage by turn right screen volume Appear Raster with Vertical retrace line Readjust screen Voltage Check the voltage at pin 14 15 16 of IC 101 check the voltage between and C407 check T402 check D403 check Q501 502 Q503 check IC 101 Yes Yes No No No SM 74PM P16 Yes ...

Страница 18: ... Line START Check voltage at IC401 PIN6 26V Check IC 401 PIN5 V WAVE Check the waveform IC 401 PIN2 V OUT Check DY CONNECTOR CheckC408 D402 R405 Check IC101 PIN38 Check IC401 PIN4 3 84V Check IC 401 YES YES NO NO NO SM 74PM P17 ...

Страница 19: ...at IC201 PIN9 20V Check the IC201 PIN2 5 AUDIO SIGNAL Check R211 Q204 Q205 R213 D911 C924 C218 Check IC301 PIN6 47 YES YES NO NO Check the speaker PIN Check R L speaker wire Check the R L speaker Check IC201 C207 Check the IC 201 of PIN4 20V NO NO YES YES ...

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