Samsung TXJ1366 specifications No Signal

Page 21

Troubleshooting

5-4 No Signal

No

Signal

Abnormal

Check

Normal

each tuner

terminal

voltage.

Check

Check voltage

Abnormal

Normal

line.

tuner SCL,SDA

waveform.

Check

Normal

Check

tuner IF terminal

Micom IC901.

waveform.

Check

Abnormal

IC201 Pins 7,8

waveform.

Replace tuner.

Check IC201 Pin 41

Normal

waveform level.

Check

whether AGC and

Abnormal

Normal (2Vp-p)

AFTadjustment are normal in

the service mode.

Check

Normal

IC201 Pin 43 waveform

Readjust AGC

level.

Abnormal

Check

and AFT.

Normal (1Vp-p)

IC201 Pin 47

waveform level.

Abnormal

Check

Normal (2Vp-p)

IC201 Pins

19,20, 21

waveform

level.

Check

IC201

Normal (3~5Vp-p)

Pin 37

waveform

level.

Replace IC201.

Check CRT PCB (180V)

and heater Voltages.

Normal (1Vp-p)

5-4	Samsung Electronics

Image 21

Contents Chassis K15A Model TXJ1366 TXJ1367 TXJ1396 TXJ1966 TXJ1996 Color Television ReceiverSafety Precautions PrecautionsSamsung Electronics Servicing Precautions Precautions for Electrostatically Sensitive Devices ESDs Electronics Specifications SpecificationsBack Cover Removeal Disassembly and ReassemblyMain Board Removal Speaker Removal CRT Removel Service Mode Adjustments Alignment and AdjustmentsService Mode Menus Entering the Service ModeAdjustment in Option Mode Service Mode AdjustmentsService Mode Adjustment Ratings Alignment and Adjustment Sub-Contrast Adjustment Sub-Tint AdjustmentSub-Color Adjustment Sub-Brightness Adjustment White Balance AdjustmentVertical Size Adjustment Horizontal Size AdjustmentMemo Troubleshooting No PowerOFF No Sound Horizontal Line Appears No Signal TXJ1366, TXJ1367, TXJ1396 Exploded Views & Parts ListTXJ1966, TXJ1996 Electric Parts List Wire INC Latin Remark SpecificationPart Differences by screen size CRTInch Option 47uF 2401-001333 C311 0.47uF Changed to 4570K DeleteRelay Option OptionRAY Used RAY Delete Remark Specification RAYJWX01 Front A/V Option Sound Option MONO/DUALTXJ1366 TXJ1996 and TXJ1366 Dissimilar Parts 17 TXJ1996 TR-SMALLSIGNALKSC2330-RNPN TR-SMALLSIGNALKTC3197,NPN,30VINDUCTOR-AXIAL22UH,10%,2.5X3 CORE-FERRITEBEADAA,3.5X1.0X6CARBON7.5KOHM,5%,1/8W,AA,TP CARBON10KOHM,5%,1/8W,AA,TPCARBON2KOHM,5%,1/8W,AA,TP,1 METALOXIDES1.5OHM,5%,1W,AFILTER-CERAMICTR,4.5MHZ TUNER-F/STECC1070PG31ASFILTER-CERAMICBP,4.5MHZ ASSY-CRT Crtp MAGNET-CONVERGENCEJH291-SC-OB,29.1MMemo Block Diagram PCB Layout ICK01QLK1 GND Wiring DiagramMain 1/4 Schematic DiagramsTP8 TP9 Main 2/4Main 3/4 Main 4/4