Teac EU-68, Service Manual

Page 1: ...SERVICE MANUAL EU 68 68cm CTV Effective JANUARY 2000 EU68SERV...

Page 2: ...per tb doc The chopper transistor Q802 is damaged as a consequence of a fault in D816 This problem normally occurs when a diode type UF5407 is used in the position D816 Instructions Replace damaged co...

Page 3: ...should be applied to units found with damaged video amplifier IC Instructions Add the following components to the CRT board Refer to the figure and table below for parts location and specifications C...

Page 4: ...1...

Page 5: ...16 Blanking input 0 0 4VDC 1 3VDC 75ohm 16 17 Ground CVS output 17 Ground CVS output 18 Ground CVS input 18 Ground CVS input 19 CVS output 1Vpp 75ohm 19 CVS output 1Vpp 75ohm 20 CVS input 1Vpp 75ohm 2...

Page 6: ...ilable When the horizontal scan is reduced to display 4 3 pictures on a 16 9 picture tube an accurate video blanking can be switched on to obtain well defined edges on the screen Overvoltage condition...

Page 7: ...E2 to C 48 25 to 82 25 1 S01 to S10 69 25 to 168 25 Mid Band E5 to E12 175 25 to 224 25 S11 to S39 231 25 to 447 25 High Band E21 to E69 471 25 to 855 25 2 S40 to S41 455 25 to 463 25 1 Enough margin...

Page 8: ...SIF Input Two input pins are provided SIF1 e g for terrestrial TV and SIF2 e g for a satellite tuner The selected signal is passed through an AGC circuit and then digitized by an 8 bit ADC operating a...

Page 9: ...hout extra reference circuit The supply voltage is 5VDC at pin 21 11 COMBFILTER SAA4961 The SAA 4961 is a one chip PAL NTSC combfilter IC with internal delay lines filters clock control synchronisatio...

Page 10: ...A884X is I C bus controlled single chip TV processor which is intended to be applied in PAL NTSC PAL NTSC and multi standard television receivers These IC s are nearly pin compatible with the TDA837X...

Page 11: ...mplitude of high reference current 20mA 19 Blue output 2Vpp 20 Green output 2Vpp 21 Red output 2Vpp 22 Beam current limiter input V guard input 23 Red input for insertion 0 7Vpp Max 0 8Vpp 24 Green in...

Page 12: ...ned to meet a wide range of applications It is a combined VHF UHF tuner suitable for CCIR systems B G H L L I and I The low IF output impedance has been designed for direct drive of a wide variety of...

Page 13: ...el 3 0V Max Vcc 0 5V 5 Input Max 2Vpp Input Current 1mA Max 3mA 6 Input Max 2Vpp Input Current 1mA Max 3mA 7 Prog 8 Input Max 2Vpp Input Current 1mA Max 3mA 9 Vcc 12V 10 Input Max 2Vpp Input Current 1...

Page 14: ...neral Description of TDA2615 The TDA2615 is a dual power amplifier in a 9 lead single in line SIL9 It has been especially designed for mains fed applications Features n Requires very few external comp...

Page 15: ...flyback supply voltage Min Vp Max 50V 7 Output voltage A Max 52V Output current 2App TDA8356 3App TDA8351 8 Guard output voltage Max 5 5V Io 100mA 9 Input feedback voltage Max 52V TDA6107Q The TDA6107...

Page 16: ...in 400mV DC offset voltage related to input Max 400mV BYPASS mode Co Cext 0dB Min 1dB Max 1dB 13 fsc reference selection HIGH level input voltage Min 2V Max Vcc Low level input voltage Min 0V Max 0 8V...

Page 17: ...Ireg Iref 20 5 Min 18 Max 23 16 Rref input 2 5VDC Min 2 4VDC Max 2 6VDC SDA525X General description The SDA525X is designed for a low cost mono TV set with analogue picture and sound control IN SDA525...

Page 18: ...l 5V 20 Audio switch transistor selection 3 LOW level 0V HIGH level 5V 21 Audio switch transistor selection 4 LOW level 0V HIGH level 5V 22 Comb filter standard selection 1 LOW level 0V HIGH level 5V...

Page 19: ...ic mode with feature extension PINNING PIN VALUE 1 NICAM clock output 728kHz LOW level input voltage Max 0 8V HIGH level input voltage Min 2 0V 2 Serial NICAM DATA output 728kHz LOW level input voltag...

Page 20: ...ter than 105 due to gated phase detector at L L accent standard and PLL bandwidth control at negative modulated standards n VCO frequency switchable between L and L accent alignment external picture c...

Page 21: ...y I C bus compatible n Byte and Multibyte write up to 8 bytes n Page write up to 16 bytes n Byte random and sequential read modes n Self timed programming cycle PINNING PIN VALUE 1 Write protect enabl...

Page 22: ...annel Min 2Vrms 14 Output selector left channel 15 Line output left channel 500mVrms 16 Capacitor timing wideband for dbx 17 Capacitor timing spectral for dbx 18 Capacitor wideband for dbx 19 Capacito...

Page 23: ...djustment must be set to the maximum value Y Delay SECAM Enter a SECAM B G colour and black white bar test pattern via RF Adjust Y Delay SECAM till the colour transients on the colour bar of the patte...

Page 24: ...vice Mode Adjustment 16 9 VERTICAL SLOPE ADJUSTMENT Enter a CROSS HATCH B G test pattern via RF Change vertical slope till the size of squares on both the upper and lower part of test pattern become e...

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Page 32: ...0 3 60000008 HIPS NATURAL KG 0 000 11 3 60000022 MASTERBATCH BLACK KG 0 000 12 2 30001279 LED RED GREEN LTL293SJ PC 1 000 LD501 13 2 30001670 PREAMPLIFIER TFMS5360 PC 1 000 14 2 30002181 SWITCH TACT P...

Page 33: ...39 2 40000127 SWITCH INSULATION DOOR LK101 PC 1 000 40 2 40001898 MACARON 12cm Is ile daralan PC 1 000 41 1 20016746 SNOW BOX ASSY 7411 12 PC 1 000 42 2 20015443 SNOW BOX 7411 12 TOP PC 1 000 43 3 60...

Page 34: ...1 4W 82R J PC 2 000 R103 R105 66 7 30001979 FIXED COIL 1UH Q45 M A PC 1 000 L102 67 6 30007180 PCB 11SB19B 3 PC 1 000 68 7 60000047 CCL 1220 1020 1 6 FR2 V0 351 M2 0 010 69 5 30000191 CAP CER 100PF 5...

Page 35: ...WO TS SILVER P PC 1 000 91 3 20038260 BUTTON ON OFF 7212 7412 WO TS L GRAY I PC 1 000 92 4 60000001 ABS NATURAL KG 0 010 93 4 60000515 MASTERBATCH LIGHT GRAY 1 G 0 010 94 3 60000072 PAINT SILVER 022...

Page 36: ...20023854 F CARTON BOX TEAC EU 68ST S PC 1 000 117 2 50008069 CARTON BOX TEAC EU 68ST PC 1 000 118 2 50008505 CAR BOX 7411 12 CRAFT TV EMPTY PC 1 000 119 1 20024634 ARTWORK TEAC AUSTR TEAC EU 68ST PC...

Page 37: ...000123 CAP PP 33NF 630V K PC 1 000 C610 144 3 30000137 CAP MKP 15NF 630V J PC 1 000 C613 145 3 30000165 CAP MKP 5 6NF 1600V J PC 1 000 C611 146 3 30000172 CAP MKP 680NF 250V J P15 PC 1 000 C617 147 3...

Page 38: ...MD RAD BAV19E BAV OUT PC 1 000 173 7 20002101 MD AXI BAV19E BAV OUT PC 1 000 174 8 30009556 PCB 11BAV19E 2 PC 1 000 175 7 30000109 CAP MKT 470NF 63V J PC 3 000 C103 C104 C113 176 7 30000352 CAP EL 10...

Page 39: ...0 IC302 201 5 30001597 IC TDA 9875A PC 1 000 202 5 30001692 FILTER SAW OFWK3953M PC 1 000 Z300 203 5 30001706 FILTER SAW OFWK9453 PC 1 000 Z301 204 5 30002041 ADJ COIL 251NH Q50 PC 1 000 LT301 205 4 2...

Page 40: ...R J PC 4 000 R305 R306 R325 R326 228 6 30000469 RES SMD 1 10W 1K J 0805 PC 2 000 R321 R351 229 6 30000475 RES SMD 1 10W 10K J 0805 PC 1 000 R323 230 6 30000524 RES SMD 1 10W 150R J 0805 PC 1 000 R316...

Page 41: ...93 RES SMD 1 10W 2 2K J 0805 PC 1 000 R335 257 6 30000597 RES SMD 1 10W 22K J PC 2 000 R350 R352 258 6 30000664 RES SMD 1 10W 3 3K J 0805 PC 1 000 R331 259 6 30000721 RES SMD 1 10W 4 7K J PC 2 000 R33...

Page 42: ...10W 2 2R J PC 1 000 R302 285 6 30001734 JUMPER SMD 0805 PC 7 000 C313 C314 C334 R307 R318 S310 S311 286 5 20022128 MD SMD ST19 PCB GRB 7BPCB PC 1 000 287 6 20022129 MD RAD ST19 PCB GRB 7BPCB PC 1 000...

Page 43: ...2 XTAL 6MHZ PC 1 000 X501 315 4 20020555 MB MAN 19B STR WO DOLBY PC 1 000 316 5 20000956 HE ASY 19 REG STR WO DL PC 1 000 317 6 30001500 IC LM7808 PC 1 000 IC805 318 6 30001525 IC TDA2615 PC 1 000 IC1...

Page 44: ...1827 HRZ VRT CONN 4P PC 1 000 PL601 346 5 30001999 FIXED COIL 40UH LOSS COIL PC 1 000 L605 347 5 30002011 COIL CHOKE 150UH 0 82A RAD PC 1 000 L803 348 5 30002090 LINE DRIVER NEW TYPE PC 1 000 TR601 34...

Page 45: ...115 374 5 30001579 IC TDA8844 N2 PC 1 000 IC401 375 5 30001692 FILTER SAW OFWK3953M PC 1 000 Z401 376 5 30001724 FILTER SER TRAP TPS 5 5MHZ PC 1 000 Z209 377 5 30001745 XTAL 3 579545 PC 1 000 X404 378...

Page 46: ...TRF SMPS AK19 110 90 270V PC 1 000 TR802 404 5 30002104 LINE FILTER 2X22MH AK16 PC 1 000 TR801 405 5 30007069 IC TCDT1102G PC 1 000 IC801 406 4 20027407 MB MAN 19B 29 SIZE TEAC PC 1 000 407 5 20000952...

Page 47: ...5 CAP MKT 100NF 250V K DC PC 1 000 C901 436 5 30000084 CAP MKT 150NF 275V M AC P 15 PC 1 000 C802 437 5 30000350 CAP EL 10UF 250V M PC 1 000 C902 438 5 30000406 CAP EL 47UF 250V M HR PC 2 000 C606 C82...

Page 48: ...C44604 PCB GRUBU PC 1 000 466 8 20025713 MB JUM 19B AK19B1 MC44604 PCB GRUBU PC 1 000 467 9 30002583 JUMPER WIRE 0 6MM G 2 380 J801 D822 S805 R802 R803 J803 S804 J101 J111 J120 J125 J278 J288 J451 J80...

Page 49: ...0345 CAP EL 10UF 50V M PC 1 000 C580 497 6 30000353 CAP EL 100UF 25V M PC 1 000 C848 498 6 30000387 CAP EL 33UF 50V M PC 1 000 C449 499 6 30000433 CAP CER 1NF 1KV M B PC 2 000 C821 C824 500 6 30007708...

Page 50: ...50V J 08 05 PC 2 000 C524 C525 529 5 30000294 CAP SMD 100NF 50V K 0805 PC 1 000 C590 530 5 30000475 RES SMD 1 10W 10K J 0805 PC 3 000 R595 R596 R564 531 5 30000484 RES SMD 1 10W 1M J 0805 PC 1 000 R5...

Page 51: ...J611 J612 J613 J615 J616 J619 J648 J651 J804 J808 J810 J850 R616 R825 R827 S112 S113 S114 S602 S107 J805 J114 J131 J156 J171 J187 J188 J243 J254 J263 J265 J271 J277 J280 J598 J128 J164 546 8 30000459...

Page 52: ...C705 572 6 30000074 CAP MKT 100NF 63V J PC 3 000 C403 C436 C709 573 6 30000092 CAP MKT 220NF 63V J PC 2 000 C706 C415 574 6 30000106 CAP MKT 47NF 100V J PC 1 000 C604 575 6 30000109 CAP MKT 470NF 63V...

Page 53: ...R PC 1 000 C603 602 5 30000312 CAP SMD 22NF 50V K 0805 PC 7 000 C108 C412 C416 C417 C418 C425 C438 603 5 30000315 CAP SMD 220NF 25V Z 0805 PC 1 000 C419 604 5 30000322 CAP SMD 3 3NF 50V K 0805 PC 1 0...

Page 54: ...5 30000732 RES SMD 1 10W 470K J PC 1 000 R458 627 5 30000735 RES SMD 1 10W 4 7R J 0805 PC 1 000 R418 628 5 30000747 RES SMD 1 10W 560R J 0805 PC 1 000 R102 629 5 30001734 JUMPER SMD 0805 PC 19 000 J0...

Page 55: ...0784 MB SMD 19B PLL NORMAL PC 1 000 653 5 20020785 MB RAD 19B PLL NORMAL PC 1 000 654 6 20020786 MB AXI 19B PLL NORMAL PC 1 000 655 7 20020787 MB SEQ 19B PLL NORMAL PC 1 000 656 8 20026015 MB JUM 19B...

Page 56: ...GS NI STR PLL PC 1 000 685 5 20021399 MB RAD 19B PSBG GS NI STR PLL PC 1 000 686 6 20021400 MB AXI 19B PSBG GS NI STR PLL PC 1 000 687 7 20021401 MB SEQ 19B PSBG GS NI STR PLL PC 1 000 688 8 20021402...

Page 57: ...0513 RES CF 1 4W 130K J PC 1 000 R823 716 8 30000525 RES CF 1 2W 1 5K J PC 5 000 R901 R902 R903 R905 R906 717 8 30000572 RES CF 1 4W 2K J PC 1 000 R824 718 8 30000655 RES CF 1 4W 330R J PC 1 000 R707...

Page 58: ...SMD 1 10W 1 5M J PC 1 000 R639 747 5 30000550 RES SMD 1 10W 160K J PC 1 000 R456 748 5 30000597 RES SMD 1 10W 22K J PC 1 000 R474 749 5 30000606 RES SMD 1 10W 2 2M J PC 1 000 R453 750 5 30001734 JUMP...

Page 59: ...4 000 C03 C04 C01 C02 775 5 30000334 CAP SMD 47NF 50V K 0805 PC 1 000 C409 776 5 30000457 RES SMD 1 10W 10R J 0805 PC 1 000 R105 777 5 30000464 RES SMD 1 10W 100R J PC 2 000 R050 R051 778 5 30000469...

Page 60: ...C 1 000 791 4 30009005 IC 24C16 PC 1 000 792 1 30006624 29 CPT TUBE PC 1 000 793 1 40001939 LOGO TEAC BIG GRAY W P PC 1 000 794 1 50000007 PLASTIZOTE 1400 1000 PC 2 000 795 1 50006126 LBL SERVICE TEAC...

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