Daewoo DTP-14V1 Service Manual
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Daewoo DTP-14V1 Service Manual

Daewoo DTP-14V1 Service Manual

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Service Guide
Colour Television
CHASSIS : CP-005
Model :
DTP-14V1/V2/V3/V5/C3/C4/C5TF
20V1/V3/C4/C5TF
21V1/V2/V4/V6/C6TF
14/20/21 V1
14 V5
21 C6
If you need further information ( IC, Circuit descriptions or troubleshooting . . .)
about this model, Please visit our web site.( http://svc.dwe.co.kr)

Specifications

ITEM
ITEMS
CCIR STANDARD
COLOR STANDARD
POWER INPUT
POWER CONSUMPTION
TUNING SYSTEM
RECEPTION CHANNEL
SOUND OUTPUT
SPEAKER
ANTENNA INPUT
IMPEDANCE
AUXILIARY TETMINAL
REMOTE CONTROL
SPECIAL FUNCTION
DAEWOO ELECTRONICS CO., LTD
http : //svc.dwe.co.kr
14/21 V2
14/20 V3
14 C3
14/20 C4
DTP-14V1TF
DTP-14V2TF
DTP-20V1TF
DTP-14V3TF
DTP-20V3TF
DTP-14V5TF
DTP-20C4TF
DTP-14C3TF
DTP-20C5TF
DTP-14C4TF
DTP-14C5TF
BG, D/K, I/I, H, L/L'
PAL / SECAM / NTSC(AV only)
AC 230V, 50Hz
57 W
70 W
Frequency Synthesizer (FS) Tuning System
BAND I : CH2 - CH4
BAND II : CH5 - CH12
CABLE BAND : S1' - S3', S1 - S20
HYPER BAND : S21 - S41
BAND IV, V : CH21 - CH69 (CH 70 for Italy)
3 W
3 W 8 ohm
75 ohm Unbalanced
INPUT : RCA JACK (Front)
SCART JACK (Rear)
R-40A01
14 - Language OSD
With TELETEXT
Wake-up On Time
Sleep Timer
S/G No. : CP005P-010G1
21 V4
14/20 C5
DTP-21V1TF
DTP-21V2TF
DTP-21V4TF
REMARKS
DTP-21V6TF
DTP-21C6TF
73 W
COMMOM
April. 2000

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Summary of Contents for Daewoo DTP-14V1

  • Page 1: Specifications

    75 ohm Unbalanced IMPEDANCE INPUT : RCA JACK (Front) AUXILIARY TETMINAL COMMOM SCART JACK (Rear) REMOTE CONTROL R-40A01 14 - Language OSD SPECIAL FUNCTION With TELETEXT Wake-up On Time Sleep Timer DAEWOO ELECTRONICS CO., LTD April. 2000 http : //svc.dwe.co.kr...

  • Page 3: Product Safety Servicing Guidelines For Audio - Video Products

    PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO - VIDEO PRODUCTS CAUTION SUBJECT : X-RADIATION : DO NOT ATTEMPT TO MODIFY THIS PRODUCT IN ANY WAY. NEVER PERFORM CUSTOMIZED INSTALLATIONS WITHOUT MANUFAC- TURER'S APPROVAL. UNAUTHORIZED MODIFICATIONS WILL NOT ONLY VOID 1. BE SURE PROCEDURES AND INSTRUCTIONS TO ALL SERVICE PERSON- THE WARRANTY, BUT MAY LEAD TO YOUR BEING LIABLE FOR ANT RESULT- NEL COVER THE SUBJECT OF X-RADIATION.

  • Page 4: Product Safety Servicing Guidelines For Color Television Receivers

    PRODUCT SAFETY SERVICING GUIDELINES FOR COLOR TELEVISION RECEIVERS CAUTION : Do not attempt to modify this product in any way. Unau- GRAPHIC SYMBOLS : thorized modifications will not only void the warranty, but may lead to your being liable for any resulting property damage or user injury. The lightning flash with arrowhead symbol, Service work should be performed only after you are thoroughly within an equilateral triangle, is intended to alert...

  • Page 5: Subject : Implosion

    SUBJECT : IMPLOSION 4. Wall and shelf mounted installations using a commercial mounting kit, must follow the factory approved mounting instructions. A 1. All direct viewed picture tubes are equipped with an integral implo- receiver mounted to a shelf or platform must retain its original feet(or the equivalent thickness in spacers) to provide adequate sion protection system, but care should be taken to avoid damage during installation.
  • Page 6 JS02 JS01 CP-005 CHASSIS ANTENNA AV JACK SCART JACK U101 SF101 SPEAKER TUNER PICTURE S/F RF INPUT 3W 8OHM SF102 SOUND S/F SPEAKER I501 STV2238 3W 8OHM I702 EEPROM DATA CLK 2 SPK OTION AT24C16 - BUS CONTROL - PIF CVBS - SIF ST-BY...

  • Page 7: Enter Service Mode

           ENTER SERVICE MODE     1. Select the Pr 91.   "#    2. Adjust “Sparpness” to 0.    3. Enter the service mode using the following keys.     " R ! ! ! ! G ! ! ! ! MENU.     $  ...

  • Page 8: White Balance

    2. SCREEN 1) Receive the Retma pattern and heat run over 15 minutes. 2) Adjust 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 reach to the cut-off point. 3.

  • Page 9: Vertical Size

    6. GEOMETRY VERTICAL CENTER 1) Set the TV to “NORMAL I” mode. 2) Enter the service mode. 3) Locate the cursor at “V. CENTER” then press “VOL +” or “VOL – “ keys to adjust the center line with the mechanical center marks of the CRT.
  • Page 10 If EEPROM(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 = * Service Remocon...
  • Page 11 ST92195B 32-64K ROM HCMOS MCU WITH ON-SCREEN-DISPLAY AND TELETEXT DATA SLICER Register File based 8/16 bit Core Architecture with RUN, WFI, SLOW and HALT modes 0°C to +70°C operating temperature range Up to 24 MHz. operation @ 5V±10% Min. instruction cycle time: 165ns at 24 MHz. 32, 48, 56 or 64 Kbytes ROM 256 bytes RAM of Register file (accumulators or index registers)

  • Page 12: General Information

    ST92195B - GENERAL INFORMATION 1 GENERAL INFORMATION 1.1 INTRODUCTION cy programmable via the CCU. In this mode, the power consumption of the device can be reduced The ST92195 microcontroller is developed and by more than 95% (Low power WFI). manufactured by STMicroelectronics using a pro- Halt Mode.
  • Page 13 ST92195B - GENERAL INFORMATION GENERAL DESCRIPTION (Cont’d) 1.1.7 Teletext, VPS and WSS Data Slicers 1.1.10 Serial Peripheral Interface (SPI) The three on-board data slicers using a single ex- The SPI bus is used to communicate with external ternal crystal are used to extract the Teletext, VPS devices via the SPI, or I²C bus communication and WSS information from the video signal.
  • Page 14 ST92195B - GENERAL INFORMATION Figure 1. ST92195 Block Diagram Up to 64 P0[7:0] Kbytes ROM PORT 0 256 bytes P2[5:0] PORT 2 Up to 8 Kbytes P3[7:4] PORT 3 TDSRAM P4[7:0] 256 bytes PORT 4 Register File 8/16-bit P5[1:0] PORT 5 DATA INT[7:4] TXCF...

  • Page 15: Pin Description

    ST92195B - GENERAL INFORMATION 1.2 PIN DESCRIPTION Figure 2. 64-Pin Package Pin-Out P4.7/PWM7/EXTRG/STOUT AIN4/P0.2 P4.6/PWM6 P0.1 P4.5/PWM5 P0.0 P4.4/PWM4 CSO/RESET0/P3.7 P4.3/PWM3/TSLU/HT P3.6 P4.2/PWM2 P3.5 P4.1/PWM1 P3.4 P4.0/PWM0 VSYNC HSYNC/CSYNC AVDD1 PXFM SDO/SDI/P5.1 JTRST0 INT2/SCK/P5.0 N.C. JTDO *See Note 1 of pin description. N.C.
  • Page 16 ST92195B - GENERAL INFORMATION PIN DESCRIPTION (Cont’d) RESET Reset (input, active low). The ST9+ is ini- PXFM Analog pin for the Display Pixel Frequency tialised by the Reset signal. With the deactivation Multiplier of RESET, program execution begins from the AVDD3 Analog VDD of PLL.
  • Page 17 ST92195B - GENERAL INFORMATION Figure 4. ST92195 Required External components V C C C 1 8 2 p F P 2 0 P 2 1 P2.0/INT7 P2.1/INT5/AIN1 P 2 2 1 µ F R E S E T N P2.2/INT0/AIN2 P 0 7 P 2 3 R 1 1 0 k...
  • Page 18 ST92195B - GENERAL INFORMATION PIN DESCRIPTION (Cont’d) P0[7:0], P2[5:0], P3[7:4], P4[7:0], P5[1:0] Important : Note that open-drain outputs are for I/O Port Lines (Input/Output, TTL or CMOS com- logic levels only and are not true open drain. patible). 1.2.1 I/O Port Alternate Functions. 28 lines grouped into I/O ports, bit programmable Each pin of the I/O ports of the ST92195 may as- as general purpose I/O or as Alternate functions...
  • Page 19 ST92195B - GENERAL INFORMATION 1.2.2 I/O Port Styles Pins Weak Pull-Up Port Style Reset Values P0[7:0] Standard I/O BID / OD / TTL P2[5,4,3,2] Standard I/O BID / OD / TTL P2[1,0] Schmitt trigger BID / OD / TTL P3.7 Standard I/O AF / PP / TTL P3[6,5,4]...

  • Page 20: Power Control Module

    IC DESCRIPTION I801 POWER CONTROL MODULE DPM 001 TI PIN NO DESCRIPTION PIN NO DESCRIPTION GATE DRIVE1 +12V INPUT POWER CONTROL SOURCE GND1 GND2 GATE +133V INPUT GATE DRIVE2...

  • Page 21: Product Preview

    STV223XD/223X/224X BUS CONTROLLED MULTISTANDARD ONE CHIP TV PROCESSOR PRODUCT PREVIEW FEATURES DESCRIPTION C BUS CONTROL. The STV223XD/223X/224X are fully bus con- trolled ICs for TV including PIF, SIF, luma, chroma PIF CIRCUIT WITH PLL DEMODULATION and deflection processing. Used with a vertical (Positive and Negative Video).
  • Page 22 STV223XD/3X/4X Pin N° STV224X/8X STV223X STV223XD Symbol Description SDIP56 SDIP56 TQFP64 SIFIN1 SIF Input SIFIN2 SIF Input AGCSIFCAP AGC SIF Capacitor Voltage Reference Filtering AGCPIFCAP AGC PIF Capacitor PIFIN1 PIF Input PIFIN2 PIF Input TUNERAGCOUT AGC Tuner Output IFPLL IF PLL Filter GND IF IF Ground AM/FMOUT/SC...
  • Page 23 STV223XD/3X/4X Pin N° STV224X/8X STV223X STV223XD Symbol Description SDIP56 SDIP56 TQFP64 CVBSOUT1 Main Video Switch Output Chroma/Scanning Power Supply (8 V) Beam Current Limiter Control Voltage and BCL/SAF Safety Input (XRAY) VERT Vertical Output Pulse HOUT Horizontal Output Pulse Line Flyback Input and Super-sandcastle Out- LFB/SSC SLPF Scanning PLL Filter...
  • Page 24 STV223XD/3X/4X PIN CONNECTIONS STV223X (SDIP56) PIN CONNECTIONS STV224X/8X (SDIP56) NOTE: UNDERLINED PIN FUNCTIONS ARE OPTIONAL PIN CONNECTIONS STV223XD (TQFP64) 5/72...
  • Page 25 STV223XD/3X/4X BLOCK DIAGRAM (STV2238D) (TQFP64) 9/72...
  • Page 26 1. NO POWER Check F801(250V 4A) Check D837~840 D837~840 F801 PCW1 R802 L801 Check R802(10W 3.3) TO MICOM #54 OCP Q802 C826 T801 Check R804 Voltage 133V C805 R808 D806 133V Check D841 C815 waveform Check R803 TUNER D810 Voltage R101 L802 DR.TRANS B+...
  • Page 27 2. NO PICTURE NG : Go to the figure C Check the wave of I501 #21 OK : Go to the figure D SF101 SAW FILTER U101 Check TUNER IF AGC voltage Check Check the voltages RF AGC voltage I501 I701 CVBS MICOM...
  • Page 28 3. NO SOUND NG : Go to the figure E Check audil output signal of I501 #8 OK : Go to the figure F SF102 SAW FILTER Check U101 SIF input signal TUNER Check IF AGC voltage I501 I701 MICOM Check clock/data signal Check...

  • Page 29: No Vertical Deflection

    4. NO COLOR composit video in Check Check CVBS waveform R/G/B signal I501 R OUT B OUT G OUT Check the crystal X502 5. NO VERTICAL DEFLECTION Check the voltage (25V) Check Sawtooth voltage D303 MICOM C306 C305 I501 Vertical output I301 Check RC310...

  • Page 30: No On-Screen Display

    6. NO ON-SCREEN DISPLAY Check Check the signal (50/60Hz) clock/data signal V.SYNC IN I701 I501 H.SYNC IN MICOM FAST BLANK Check OSD R the signal (15.625KHz) OSD G OSD B X701 Check 4MHz Check OSD R/G/B/FB signal the crystal 7. REMOTE CONTROL DOES NOT OPERATE I701 I704 MICOM...
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  • Page 37 Mechanical Exploded View...

  • Page 38: Important Service Notes

    DAEWOO ELECTRONICS CO., LTD. is safe to operate without danger of electrical shock. Plug the AC line cord C.P.OBOX8003 SEOUL, KOREA...

  • Page 39: Alignment Instructions

    Alignment Instructions 2. SCREEN SVC v0 1) Receive the Retma pattern and heat run over 15minutes. 2) Adjust the “ R, G BIAS, R, G DRIVE” to 0, “ B BIAS” to R BIAS 127, “ B DRIVE” to 32. ENTER SERVICE MODE G BIAS Adjust the screen volume that the Retma pattern reachs...
  • Page 40 6. GEOMETRY 6.1 VERTICAL CENTER 1) Set the TV to “ NORMAL I” mode. 2) Enter the service mode. 3) Locate the cusor at “ V.CENTER” then press “ VOL +” or “ VOL -” keys to adjust the center line with the mechanical center marks of the CRT.

  • Page 41: Electrical Parts List

    Electrical Parts List PART CODE PART NAME PART DESCRIPTION PART CODE PART NAME PART DESCRIPTION PART CODE PART NAME PART DESCRIPTION D107 DUZ5R1B--- DIODE ZENER UZ-5.1B UNIZON AWG22 1/0.65 TIN R501 RD-4Z101J- R CARBON FILM 1/4 100 OHM J L603 85801065GY WIRE COPPER D301,3...
  • Page 42 PART CODE PART NAME PART DESCRIPTION PART CODE PART NAME PART DESCRIPTION RC511 HRFT470JCA R CHIP 1/10 47 OHM J 2012 RC726 HRFT103JCA R CHIP 1/10 10K OHM J 2012 RC512 HRFT223JCA R CHIP 1/10 22K OHM J 2012 RC727 HRFT103JCA R CHIP 1/10 10K OHM J 2012...
  • Page 43 Video Audio...

This manual is also suitable for:

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