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TEAC AUSTRALIA 

TECH MEMO – “TELEVISION”

 

Date:  29-Sep-1998 
File:   CTM-805SR-3 

 

 

MODEL:  CTM805SR  

 

Symptom:

  

Component SE140N (Q905) is being replaced by standard NPN 
transistor. 
 
This component is NOT a NPN transistor as shown in the CT-M805SR 
circuit diagram.  This device is acting as a voltage sensing device (ie. 
For B+ voltage) which via the opto-coupler changes the pulse width on 
the primary side of the switch-mode supply.

 

 

Equivalent Circuit: 

 

 

 

 
Instructions:

 

 

Use only the specified component.  Use P/N 1300SE140N when ordering. 
 
 
Regards, 
 
 
 
 
Fabian Lubanovic 

Technical Manager 

 

Summary of Contents for CT-M805S/SV

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Page 2: ... Symptom FAILURE OF D402 causing failures D403 R427 and Q402 Countermeasures Replace diode D402 with Philips type BY228 Temporary Countermeasure Insert an additional diode in series 3TH41 Toshiba in location D402 as per diagram below both diodes 3TH41 type Regards Fabian Lubanovic ...

Page 3: ...USTRALIA TECH MEMO TELEVISION Date 01 Jan 1999 File CTM 805SR 4 MODEL CTM805SR Symptom NO SOUND Instructions Replace diode D301 it may measure ok common signal diode Regards Fabian Lubanovic Technical Manager ...

Page 4: ...nt is NOT a NPN transistor as shown in the CT M805SR circuit diagram This device is acting as a voltage sensing device ie For B voltage which via the opto coupler changes the pulse width on the primary side of the switch mode supply Equivalent Circuit Instructions Use only the specified component Use P N 1300SE140N when ordering Regards Fabian Lubanovic Technical Manager ...

Page 5: ...CHNICAL BULLETIN 17th May 1999 Page 1 of 1 MODEL CT M805SR PROBLEM Television will go standby intermittently Instructions Move diode D904 to location D904A Regards Fabian Lubanovic TEAC Australia Pty Ltd ...

Page 6: ...oss REVSION 2 Instructions Fit a 0 1uF ceramic capacitor across R103 10k resistor in parallel Refer diagram below If the above modification fails to operate the next step is to replace the tuner Regards Fabian Lubanovic TEAC Australia Pty Ltd Q101 Pm2369 R102 R101 R155 R103 C102 Fit cap across here ...

Page 7: ...witching to standby a buzzing noise may be heard for some time Using the following circuit can eliminate problem Instructions 1 Remove the link between collector and emitter of Q301 2 Insert the following components in the indicated locations of the main PCB R305 1K R306 10K Q301 2SD1406 Regards Alcides Berta TEAC Australia Pty Ltd ...

Page 8: ...to play video tapes This problem occurs when playing video cassette movies and is particularly noticeable when using the MV6080G VCR Instructions Locate C249A which is close to XTAL X201 4 43Mhz colour burst Replace C249A with a 15pF ceramic capacitor Fabian Lubanovic TEAC Australia Pty Ltd ...

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Page 22: ... RC 684 PC 1 973R6330100 VOLUME CHANNEL KNOB MOULDED BLACK PC 1 0021340984A 34 CRT A80AEJ15X98 RCA WORLD WIDE YAMMING PC 1 00313137207 TUNER OSCAR 2900KKC 3X1 772 TELEFUNKEN HIGH JACK PC 1 00812233105 DEGAUSSING COIL 120T L 3750MM 5 TAPE DIA 0 45MM ART TECH PC 1 10773150000 SAW FILTER TSB 5308U SANYO PC 1 10773891510 SAW FILTER 38 9 MHZ TSF5315U SANYO PC 1 11310310167 METAL FILM RESISTOR 10K OHM 1...

Page 23: ... WOOFER PC 1 919733B0120 P DOOR TEAC DESIGN CT M805SR W CABLE READY WORDING PC 1 980733A02U0 JACK PLATE HI PS BRASS INSERT 521 882001 00 2PCS SET UL 94V0 PC 1 991733A0101 POWER KNOB METALLIC GREY 8403C PC 1 00123415110 FLYBACK TRANSFORMER JF0101 0151 SHEKOU JEWEL PC 1 01210234006 SEMI FIXED RESISTOR EVND8AA 03B13 1KB PC 1 01210334006 SEMI FIXED RESISTOR EVND8AA 03B14 10KB PC 1 01220233006 SEMI FIX...

Page 24: ... 11315110517 CARBON FILM RESISTOR 150 OHM 1 4W 5 PC 1 11315120512 CARBON FILM RESISTOR 150 OHM 1 2W 5 PC 1 11315210517 CARBON FILM RESISTOR 1 5K OHM 1 4W 5 PC 3 11315310517 CARBON FILM RESISTOR 15K OHM 1 4W 5 PC 3 11315340575 METAL OXIDE FILM RESISTOR 15K OHM 2W 5 PC 1 11315410517 CARBON FILM RESISTOR 150K OHM 1 4W 5 PC 2 11315860575 METAL OXIDE FILM RESISTOR 0 15 OHM 5W 5 PC 1 11315940542 NON FLA...

Page 25: ...OSITION RESISTOR 5 6M OHM 1 2W 10 PC 4 11368210217 CARBON FILM RESISTOR 6 8K OHM 1 4W 2 PC 1 11368210517 CARBON FILM RESISTOR 6 8K OHM 1 4W 5 PC 1 11368310167 METAL FILM RESISTOR 68K OHM 1 4W 1 PC 1 11368310517 CARBON FILM RESISTOR 68K OHM 1 4W 5 PC 2 11368830542 FUSING RESISTOR 0 68 OHM 1W 5 PC 2 11375010517 CARBON FILM RESISTOR 75 OHM 1 4W 5 PC 8 11382110517 CARBON FILM RESISTOR 820 OHM 1 4W 5 P...

Page 26: ... MFD 50V 10 PC 5 12647307101 MYLAR CAP 0 047 MFD 50V 10 PC 2 12647320131 POLYPROPYLENE CAP 0 047 MFD 200V 10 PC 1 12647322241 METALIZED POLYPROPYLENE CAP 0 047 MFD 275V 20 OKAYA PC 2 12647406021 METALIZED POLYESTER FILM CAP 0 47 MFD 63V 5 PC 1 12647407101 MYLAR CAP 0 47 MFD 50V 10 PC 3 12647422241 METALIZED POLYPROPYLENE CAP 0 47 MFD 275VAC 20 OKAYA PC 1 12656207101 MYLAR CAP 0 0056 MFD 50V 10 PC ...

Page 27: ...IODE EGIZ SANKEN PC 1 13031004300 RECTIFIER DIODE RU4B SANKEN PC 1 13031012000 RECTIFIER DIODE FMP G12S SANKEN PC 1 13031034100 RECTIFIER DIODE 3TH41 TOSHIBA PC 1 13031034500 RECTIFIER DIODE 3JH45 TOSHIBA PC 1 13031060600 BRIDGE RECTIFIER RBV 606 SANKEN PC 1 13031154560 RECTIFIER DIODE 1R5JH45 PC 1 13031400101 RECTIFIER DIODE 1N4001 PC 1 13031529500 RECTIFIER DIODE S5295G TOSHIBA PC 4 13041003901 ...

Page 28: ... H S PC 2 16010280508 PIN CONNECTOR 2 PIN PLUG STRAIGHT PC 1 16010325527 PIN CONNECTOR 3 PINS PLUG PC 2 16010380508 PIN CONNECTOR 3 PIN PLUG STRAIGHT PC 1 16010425527 PIN CONNECTOR 4 PINS PLUG SHS PC 3 16010480508 PIN CONNECTOR 4 PIN PLUG STRAIGHT PC 2 16010625527 PIN CONNECTOR 6 PINS WAFER SHS S11 W PC 2 16010925527 PIN CONNECTOR 9 PINS PLUG PC 2 16011025527 PIN CONNECTOR 10 PINS PLUG PC 2 161470...

Page 29: ... UL2468 26 2 5NN PC 0 19101020207 10 PIN SOCKET ASS Y L 120MM FLAT CABLE UL2468 26 2 5NN PC 0 19110100707 1 PIN SOCKET ASS Y L 350MM PC 1 19120004409 2 PIN SOCKET ASSM Y L 440MM PC 1 19120100307 2 PIN SOCKET ASS Y L 240MM PC 1 19120100307 2 PIN SOCKET ASS Y L 240MM PC 0 19120122107 2 PIN SOCKET ASS Y L 500MM 26 FLAT CABLE UL2468 2 5MM PC 1 19120122310 2 PIN SOCKET ASS Y L 550MM W SHIELDING WIRE 26...

Page 30: ... 0 8mm PC 2 74606310101 AC LINE CORD PIN PC 2 748733A0100 CRT MTG WASHER PC 4 75006310100 SOLDERING LUG LEG 8X4MM PC 3 75006310201 35MM SOLDERING LUG OD 7 ID 3 2 LEG 4X35MM PC 6 750733A0100 SOLDERING LUG PC 2 76668680100 FUSE HOLDER PC 2 77794210100 SPRING IN 8 4 X L18 PC 1 77988200101 IRON HEAT SINK D PC 2 77993290402 IRON HEAT SINK PC 2 77995280101 IRON HEAT SINK PC 1 781733A1300 ALUMINIUM HEAT ...

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