background image

                                                                                       

Note: K1373UM and K1306UM havn

t TC4052

.

TUNER

SAW

M1967

  DECODER

      M61250

AUDIO OUT

TDA2614

RGB    OUT

H OUT

V OUT

TDA9302

AV INPUT

TC4052

CRT

12V          26V          24V                  B+
     

SMPS

TDA16846

      MCU

    M37150

EEPROM

24C04

PDF 

文件以

 "PDF 

制作工厂

试用版创建

   

http://www.fineprint.com

Summary of Contents for EKTVM14

Page 1: ...SERVICE MANUAL Color Television Receiver Model EKTVM14 PDF 文件以 PDF 制作工厂 试用版创建 http www fineprint com ...

Page 2: ...se in high voltage or operating supply voltages No changes should be made the original design of the receiver Components shown in the shaded areas on the schematic diagram and or identified by in the replacement parts list should be replaced only with exact factory recommended replacement parts The use of unauthorized substitute parts man creats may create shock fire X ray radiation or other hazar...

Page 3: ...CE 1 Use an Isolation Transformer when performing any service on this chassis 2 Never disconnect any leads while receiver is in operation 3 Disconnect all power before attempting an repairs 4 Do not short any position of the circuit while the power is on 5 For safety reasons replacing any components should be according with identical replacement parts SEE PARTS LIST 6 Before testing warm up the TV...

Page 4: ...0 are B the voltage of B please see BOM High voltage check and bulb voltage check 1 Make sure AC power supply and B are within pointed range before calibrating high voltage 2 Connect high voltmeter to anode G4 of CRT 3 Turn on the receiver set the BRIGHTNESS and CONTRAST to the minimum zero beam current 4 High voltage must be measured below 27 5kV 5 Bulb voltage must be measured within the range o...

Page 5: ...OFF G 127 CUT OFF B 127 DRIVE R 63 DRIVE B 63 Enter into CRT ADJ menu press 0 button to display one horizontal light line on the screen adjust grid potentiometer until this light line is just appeared Press 0 button again to exit the horizontal light line status Insert the plug for automatic adjustment running white balance test program WB37150 EXE Receive A69 signal when you finish above steps if...

Page 6: ... K1306UM havn t TC4052 TUNER SAW M1967 DECODER M61250 AUDIO OUT TDA2614 RGB OUT H OUT V OUT TDA9302 AV INPUT TC4052 CRT 12V 26V 24V B SMPS TDA16846 MCU M37150 EEPROM 24C04 PDF 文件以 PDF 制作工厂 试用版创建 http www fineprint com ...

Page 7: ...NC Editor V 7 0 Mon Sep 08 10 50 14 2003 Untitled PDF PDF http www fineprint com PDF 文件以 PDF 制作工厂 试用版创建 http www fineprint com ...

Page 8: ...PDF PDF http www fineprint com PDF 文件以 PDF 制作工厂 试用版创建 http www fineprint com ...

Page 9: ...PDF 文件以 PDF 制作工厂 试用版创建 http www fineprint com ...

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