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Daewoo DTP-14V1, Service Manual

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Daewoo DTP-14V1 Service Manual Download Page 26

Q801

FET

F801

L801

R802

D837~840

T801

R804

R803

L802

R810

R819

G

S

D

I801

B+

7805

STV8131

C815

D841

C826

Q802

R808

D810

C819

R101

D806

I703

I805

D812

C827

133V

45V

12V

133V

TUNER

33V

DR.TRANS B+

45V

ST-BY

5V

5V

8V

12V

#1

#2

#3

#10

#14

#11

12V

133V

FROM U-COM

#61 PW ON/OFF

Check

F801(250V 4A)

Check

D837~840

Check

R802(10W 3.3)

TO MICOM

#54 OCP

Check

Voltage

Check

Voltage

Check

Voltage

Check

Voltage

Check

Voltage

FROM MICOM #61

PW ON: H

PW OFF: L

PCW1

Check

waveform

C805

 1. NO POWER

Summary of Contents for DTP-14V1

Page 1: ...S21 S41 TUNING SYSTEM CCIR STANDARD COLOR STANDARD POWER INPUT RECEPTION CHANNEL ITEM BG D K I I H L L BAND IV V CH21 CH69 CH 70 for Italy 57 W SOUND OUTPUT 3 W 75 ohm Unbalanced SCART JACK Rear R 40...

Page 2: ...0 1 12 324 5 6 7 8 9 2 2 2 2 1 6 2 8 9 A 8 6 A B 9 C 6 8 9 C 6 8 D5 6 2 2 2 2 D5 6 1 D 6 D5 6 D 6 2 D 6 1 D 6 D 6 D 6 2 D 6 1 D 6 D 2 D 6 B B A9 E F A F A 8...

Page 3: ...PICTURE TUBE HOWEVER THIS TUBE DOES NOT EMIT X RAYS WHEN THE HIGH VOLT AGE IS AT THE FACTORY SPECIFIED LEVEL THE PROPER VALUE IS GIVEN IN THE APPLICABLE SCHEMATIC OPERATION AT HIGHER VOLT AGES MAY CA...

Page 4: ...ck hazard and must be corrected imme diately GRAPHIC SYMBOLS The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the service personnel to the presence of unin...

Page 5: ...4 Wall and shelf mounted installations using a commercial mounting kit must follow the factory approved mounting instructions A receiver mounted to a shelf or platform must retain its original feet o...

Page 6: ...33V I801 POWRE MODULE 12V 15V 15V VID B HEATER H OUT V OUT V SIZE CVBS OSD R OSD G OSD B BL HALH TONE IF 5V 33V AGC DATA CLK SCART JACK POWER JS02 AV JACK AFC H SYNC V SYNC S MUTE SCREEN 8V 5V ST BY 5...

Page 7: ...Connect the Signal Generator RF Output PAL 38 9MHz to P101 Tuner IF Output There must be no signal input to the tuner 3 Locate the cursor to VCO in Service Mode Menu then press the Vol key and wait u...

Page 8: ...I mode 20 21 inch or set to Normal II mode 14 inch 7 Enter the service mode 8 Adjust R DRIVE G DRIVE to x 288 y 301 9 Repeat above process until the white balance value to x 288 y 301 Y 20 x 288 y 301...

Page 9: ...he VERTICAL CENTER adjustment has to be done in advance 1 Receive the Retma pattern 2 Set the TV to NORAML I mode 3 Enter the service mode 4 Locate the cursor at V SIZE then press VOL or VOL keys to a...

Page 10: ...I702 has been changed Option data has to be changed and all alignment function has to be readjusted The initial state of adjustment are as follows V Center V Size H Center R G B AFT Center AGC Servic...

Page 11: ...one modes Teletext unit including Data Slicer Acquisition Unit and up to 8 Kbytes RAM for data storage VPS and Wide Screen Signalling slicer on some devices Integrated Sync Extractor and Sync Controll...

Page 12: ...of the Clock Control Unit CCU Wait For Interrupt Mode The Wait For Interrupt WFI instruction suspends program execution un til an interrupt request is acknowledged During WFI the CPU clock is halted...

Page 13: ...th up to eight 8 bit PWM outputs with a maximum frequen cy of 23 437Hz at 8 bit resolution INTCLK 12 MHz Low resolutions with higher frequency oper ation can be programmed 1 1 10 Serial Peripheral Int...

Page 14: ...BIT TIMER WATCHDOG VPS WSS DATA SLICER I O PORT 2 ADC CVBS1 I O PORT 3 SYNC CONTROL VSYNC HSYNC CSYNC ON SCREEN DISPLAY FREQ MULTIP PXFM NMI INT 7 4 INT2 256 bytes Register File ST9 CORE 8 16 bit CPU...

Page 15: ...3 P0 4 P0 5 P0 6 P0 7 RESET P2 0 INT7 P2 1 INT5 AIN1 P2 2 INT0 AIN2 P2 3 INT6 VS01 P2 4 NMI P2 5 AIN3 INT4 VS02 OSCIN OSCOUT V DD VSS P4 7 PWM7 EXTRG STOUT P4 6 PWM6 P4 5 PWM5 P4 4 PWM4 P4 3 PWM3 TSL...

Page 16: ...GND Digital circuit ground AGND Analog circuit ground must be tied exter nally to digital GND CVBS1 Composite video input signal for the Tele text slicer and sync extraction CVBS2 Composite video inp...

Page 17: ...00nF U1 ST92195N P2 0 INT7 1 P2 1 INT5 AIN1 56 RESETN 2 P0 7 3 P0 6 4 P0 5 5 P0 4 6 P0 3 7 P0 2 AIN4 8 P0 1 9 P0 0 10 P3 7 RESETO CSO 11 P3 6 12 P3 5 13 P3 4 14 B 15 G 16 R 17 FB 18 P5 1 SDI SDO 19 P5...

Page 18: ...l interrupt 7 INT7 I P2 1 External interrupt 5 INT5 I A D analog input 1 AIN1 I P2 2 External interrupt 0 INT0 I A D analog input 2 AIN2 I P2 3 External interrupt 6 INT6 I Voltage synthesis output1 VS...

Page 19: ...nate function can be selected as follows AF Inputs AF is selected implicitly by enabling the corre sponding peripheral Exception to this are ADC analog inputs which must be explicitly selected as AF b...

Page 20: ...1 POWER CONTROL MODULE PIN NO DESCRIPTION PIN NO DESCRIPTION 1 GATE DRIVE1 10 12V INPUT 2 OCP 11 POWER CONTROL 3 SOURCE 12 NC 4 GND1 13 GND2 5 GATE 14 133V INPUT 6 GATE DRIVE2 DPM 001 TI KSE 1 2 3 4 5...

Page 21: ...UTS or YUV INTERFACE PAL SECAM NTSC CHROMA DEMODULATORS AUTO FLESH CONTROL CAPABILITY IN NTSC SOUTH AMERICA CAPABILITY PALM PALN NTSC CHROMA SUBCARRIER OUTPUT BLACK STRETCH CIRCUIT PEAKING CIRCUIT AUT...

Page 22: ...GND2 Video Luma Ground 20 20 28 CVBSIN2 External Video Input 21 21 29 BS Black Stretch Capacitor 22 22 34 Y CVBSIN3 Y SVHS or CVBS3 External Input 23 23 35 CHR Chroma SVHS Input 24 37 UIN B Y Input N...

Page 23: ...2 SCL I2 C Bus Clock Input 52 52 3 SDA I2 C Bus Data Input 53 53 4 VCCD Digital Supply Voltage 5 V 54 54 5 GND D Digital Ground 55 55 6 AUDIOOUT Main Audio Output 56 56 7 FMCAP FM Demodulation Capacit...

Page 24: ...STV223XD 3X 4X 5 72 PIN CONNECTIONS STV223X SDIP56 PIN CONNECTIONS STV224X 8X SDIP56 PIN CONNECTIONS STV223XD TQFP64 NOTE UNDERLINED PIN FUNCTIONS ARE OPTIONAL...

Page 25: ...STV223XD 3X 4X 9 72 BLOCK DIAGRAM STV2238D TQFP64...

Page 26: ...703 I805 D812 C827 133V 45V 12V 133V TUNER 33V DR TRANS B 45V ST BY 5V 5V 8V 12V 1 2 3 10 14 11 12V 133V FROM U COM 61 PW ON OFF Check F801 250V 4A Check D837 840 Check R802 10W 3 3 TO MICOM 54 OCP Ch...

Page 27: ...the crystal Check the voltages Check the waveform 21 59 Check HVCC 8V IF VCC 5V I501 T402 FBT 63 Check the Hout Check RGB signal Check ABL current Check composite video Check 200V LINE Check heater v...

Page 28: ...X701 4MHz 6 12 Check IF AGC voltage Check clock data signal Check the crystal Check SIF input signal Check Audio output signal I601 TDA7267A Check Vcc of the Sound AMP Check Audio output signal Check...

Page 29: ...heck R G B signal X502 R OUT B OUT G OUT I301 Vertical D Y 3 Output 9 2 10 VCC 25V Check the voltage 25V D303 C306 Check the waveform 8 7 Inver Input 3 Check vertical signal I501 62 Vertical output 6...

Page 30: ...Y I501 39 Check the signal 15 625KHz H SYNC IN 38 SDA SCL Check clock data signal OSD R OSD G OSD B FAST BLANK 12 11 10 9 50 49 48 47 Check OSD R G B FB signal Check the crystal I701 MICOM I704 Remote...

Page 31: ...0 1 1 1...

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Page 37: ...1 Mechanical Exploded View 11...

Page 38: ...lace such as nonmetallic control knobs insulat ing covers shields isolation resistor capacitor network etc 4 Before returning the set to the customer always perform an AC leakage cur rent check on the...

Page 39: ...the R G BIAS R G DRIVE to 0 B BIAS to 127 B DRIVE to 32 Adjust the screen volume that the Retma pattern reachs the cut off point 3 WHITE BALANCE 1 Receive the Full white pattern and heat run over 15m...

Page 40: ...ode 3 Enter the service mode 4 Locate the cursor at V SIZE then press VOL or VOL keys to adjust the upper part of the picture 6 3 HORIZONTAL CENTER 1 Apply a RETMA PATTERN signal 2 Set the TV to NORMA...

Page 41: ...DE 1N4148 TAPPING D452 D1N4148 DIODE 1N4148 TAPPING D501 7 DUZ5R6BM DIODE ZENER UZ 5 6BM TAPPING D508 D1N4148 DIODE 1N4148 TAPPING D509 D1N4148 DIODE 1N4148 TAPPING D510 DUZ5R1B DIODE ZENER UZ 5 1B UN...

Page 42: ...T101JCA R CHIP 1 10 100 OHM J 2012 RC713 HRFT101JCA R CHIP 1 10 100 OHM J 2012 RC714 HRFT102JCA R CHIP 1 10 1K OHM J 2012 RC715 HRFT152JCA R CHIP 1 10 1 5K OHM J 2012 RC716 HRFT392JCA R CHIP 1 10 3 9K...

Page 43: ...Video Audio...

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