Zenith P50W28A Service Manual
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Zenith P50W28A Service Manual

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SERVICE MANUAL
Product Type:
Chassis:
Manual Series:
Manual Part #:
Model Line:
Product Year:
Description of Controls .................................................4
Adjustment Instructions ...............................................17
Diagrams ...................................................................20
Parts List ...................................................................23
Schematics ....................................................................
Printed Circuit Boards ....................................................
Printed in Korea
All manuals and user guides at all-guides.com
PLASMA
RF-02KE
2002
CONTENTS
Published June 2002
by Technical Publications
Zenith Electronics Corporation
201 James Record Road
Huntsville, Alabama 35824-1513
Copyright © 2002 by Zenith Electronics Corporation
Model Series:
P50W28A

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  • Page 1 Adjustment Instructions ..........17 Diagrams ..............20 Parts List ..............23 Schematics ..............Printed Circuit Boards ............ Published June 2002 by Technical Publications Zenith Electronics Corporation 201 James Record Road Huntsville, Alabama 35824-1513 Copyright © 2002 by Zenith Electronics Corporation Printed in Korea...
  • Page 2 When servicing this product, under no circumstances should the original design danger of electrical shock. DO NOT USE A LINE ISOLATION be modified or altered without permission from Zenith Electronics Corporation. TRANSFORMER DURING THIS TEST. Use an AC voltmeter having 5000...

  • Page 3: Table Of Contents

    All manuals and user guides at all-guides.com TABLE OF CONTENTS DESCRIPTION OF CONTROLS ...........4 SPECIFICATIONS..............7 EXTERNAL EQUIPMENT VIEWING SETUPS .....9 EXTERNAL CONTROL DEVICE SETUP......11 IR CODE(NEC FORMAT) ...........16 ADJUSTMENT INSTRUCTION...........17 BLOCK DIAGRAM...............20 EXPLODED VIEW...............22 EXPLODED VIEW PARTS LIST .........23 REPLACEMENT PARTS LIST ..........24 SCHEMATIC DIAGRAM............

  • Page 4: Description Of Controls

    All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Monitor Controls Front Panel Controls ON/OFF VOL. MENU INPUT SELECT INPUT SELECT Button Power Standby Indicator Main Power Button MENU Button Illuminates red in standby mode, Illuminates green when the Remote Control Sensor VOLUME ( ) Buttons...
  • Page 5 All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS External Equipment Connections Monitor External Equipment Connection Panel AUDIO (MONO) AUDIO ( ) L ( ) R AUDIO VIDEO COMPONENT AUDIO REMOTE RGB1 OUTPUT AUDIO RGB1 INPUT RGB2 INPUT RS-232C INPUT CONTROL EXTERNAL SPEAKER (8Ω)
  • Page 6 All manuals and user guides at all-guides.com DESCRIPTION OF CONTROLS Remote Control Key Functions - When using the remote control, aim it at the remote control sensor on the Monitor. - Under certain conditions or if the IR code from the remote is interrupted, a particular remote function may not occur. Repeat remote key presses for functions if necessary.

  • Page 7: Specifications

    All manuals and user guides at all-guides.com SPECIFICATIONS Product Specifications MODEL P50W28A Width (inches / mm) 48.2 / 1223 Height (inches / mm) 28.9 / 734 Depth (inches / mm) 4.1 / 105 Weight (pounds / kg) 99.2 / 45...
  • Page 8 All manuals and user guides at all-guides.com SPECIFICATIONS Monitor Display Specifications Monitor Display Specifications RGB1 Mode Horizontal Vertical Horizontal Vertical Resolution Resolution Frequency(KHz) Frequency(Hz) Frequency(KHz) Frequency(Hz) 31.468 70.09 832x624 49.725 74.55 640x350 37.861 85.08 48.363 60.00 31.469 70.08 56.476 70.06 1024x768 720x400 37.927...

  • Page 9: External Equipment Viewing Setups

    All manuals and user guides at all-guides.com EXTERNAL EQUIPMENT VIEWING SETUPS atching VCR Setup atching VCR Setup How to Connect - When connecting the Monitor to external equipment, match the colors of connecting ports (Video - yellow, Audio (L) - white, Audio (R) -red).
  • Page 10 All manuals and user guides at all-guides.com EXTERNAL EQUIPMENT VIEWING SETUPS atching DTV Setup atching DTV Setup - To watch digitally broadcast programs, purchase/connect a digital set-top box. - This monitor supports HDCP (High-bandwidth Digital Contents Protection) protocol for DVI DTV (480p,720p,1080i) mode. How to Connect •...

  • Page 11: External Control Device Setup

    All manuals and user guides at all-guides.com EXTERNAL CONTROL DEVICE SETUP - Connect the RS-232C input jack to an external control device (such as a computer or an A/V control system) and control the Monitor’s functions externally. - Connect the serial port of the control device to the RS-232C jack on the Monitor back panel. - RS-232C connection cables are not supplied with the Monitor.
  • Page 12 All manuals and user guides at all-guides.com EXTERNAL CONTROL DEVICE SETUP OK Acknowledgement Command Reference List Command Reference List [Command2][ ][Set ID][ ][OK][Data][x] COMMAND 1 COMMAND 2 DATA • (Hexadecimal) The Monitor transmits ACK (acknowledgement) based on this format when receiving normal data. At this time, if the 01.
  • Page 13 All manuals and user guides at all-guides.com EXTERNAL CONTROL DEVICE SETUP 03. Aspect Ratio (Command:c) (Main picture format) 07. Contrast (Command:g) G To adjust screen contrast. G To adjust the screen format. You can also adjust contrast in the Video menu. You can also adjust the screen format using the ARC (Aspect Ratio Control) button on remote control or in the Transmission...
  • Page 14 All manuals and user guides at all-guides.com EXTERNAL CONTROL DEVICE SETUP Acknowledgement 11. Sharpness (Command:k) [o][ ][Set ID][ ][OK][Data][x] G To adjust the screen sharpness. Data 0 : 4:3 1: 16:9 You can also adjust sharpness in the Video menu. 16.
  • Page 15 All manuals and user guides at all-guides.com EXTERNAL CONTROL DEVICE SETUP 20. Color Temperature (Command:u) 25. Orbiter (Command:p) G To adjust color temperature. G To control the orbiter function on/off. You can also adjust ACC in the Video menu. Transmission Transmission [j][p][ ][Set ID][ ][Data][Cr] [k][u][ ][Set ID][ ][Data][Cr]...

  • Page 16: Ir Code(Nec Format)

    All manuals and user guides at all-guides.com IR CODE(NEC Format) How to Connect How to Connect G Connect your wired remote control to the Remote port on the Monitor. Set the CONTROL LOCK to ‘ON’ on the Monitor back panel to operate Monitor with wired remote control. Remote Control IR Code (NEC Format) Remote Control IR Code (NEC Format) G Output waveform...

  • Page 17: Adjustment Instruction

    All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS 1. Application Object 4. MAX Bias Adjustment These instructions are applied to all of the PDP monitor, RF- 02CA. (1) Input Full White (255 Gray) signal which generated from Pattern Generator into CVBS and RGB1 Input part. (2) Press POWER ON KEY on R/C for adjustment and select MAX-BIAS 2.
  • Page 18 All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS (2) Vs adjustment COLOR 1) Connect + terminal of D.M.M to Vs pin of P805 and ANALYZER connect – terminal to GND pin of P805. TYPE;CA-100 R-L 70 2) Adjust VR1 until DVM reads the same as the voltage labled G-L 70 R-M 128 on the PWB.
  • Page 19 All manuals and user guides at all-guides.com ADJUSTMENT INSTRUCTIONS press v, x on R/C in adjustment mode to select R-M or G-M, (2) DDC Data input for Digital-RGB press VOL +, - Key and adjust it until color coordination becomes as below. 1) Connect PC Serial to DVI Cable of JIG for DDC X: 0.290±0.003, Y: 0.300±0.003 Adjustment to RGB2 terminal (DVI Jack).

  • Page 20: Block Diagram

    All manuals and user guides at all-guides.com BLOCK DIAGRAM...
  • Page 21 All manuals and user guides at all-guides.com NOTES...

  • Page 22: Exploded View

    All manuals and user guides at all-guides.com EXPLODED VIEW...

  • Page 23: Exploded View Parts List

    All manuals and user guides at all-guides.com EXPLODED VIEW PARTS LIST Part No. Description 5900V12001A FAN,DC G1225S12B2 6348Q-C030C PDP,50 16:9 1365*768 DUAL SCAN POWER, INTERCOMPANY MODEL 6871QCH019A PCB ASSEMBLY,CTRL ASSY 50INCH VER4 ASIC 370*220 6871QDH030A PCB ASSEMBLY,YDRV ASSY 50WX1 4 LAYER(TOP) 6871QDH031A PCB ASSEMBLY,YDRV ASSY 50WX1 4 LAYER(BOTTOM) 6871QLH018A...

  • Page 24: Replacement Parts List

    All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST For Capacitor & Resistors, the CC, CX, CK, CN : Ceramic RD : Carbon Film charactors at 2nd and 3rd digit CQ : Polyestor RS : Metal Oxide Film RUN DATE : 2002.12.3 in the P/No.
  • Page 25 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION Q401 0TR387500AA CHIP 2SC3875S(ALY) KEC D123 0DD226239AA CHIP KDS226 SOT23 0TR387500AA CHIP 2SC3875S(ALY) KEC 0DD226239AA CHIP KDS226 SOT23 Q402 D801 Q403 0TR150400BA CHIP 2SA1504S(ASY) KEC...
  • Page 26 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 47UF MVG 16V M 220UF MV 16V 20% C127 0CE476SF6DC C829 0CE227VF6DC 0CE476SF6DC 47UF MVG 16V M 0CE476SF6DC 47UF MVG 16V M C832 C134 0CE476SF6DC...
  • Page 27 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 470UF STD 50V 20% CA102 0CE477DK618 CN137 0CE476SF6DC 47UF MVG 16V M 0CE107DH618 100UF STD 25V M 1UF MVG 50V M CA104 CN138 0CE105SK6DC...
  • Page 28 All manuals and user guides at all-guides.com REPLACEMENT PARTS LIST LOCA. NO PART NO DESCRIPTION LOCA. NO PART NO DESCRIPTION 22 OHM 1 / 16 W 1608 5% AR264 0RRZVTA001D RA101 0RS2701K607 2.7K OHM 2 W 5.00% 0RRZVTA001D 22 OHM 1 / 16 W 1608 5% 0RS2701K607 2.7K OHM 2 W 5.00% AR265...
  • Page 29 6212AB2015C RESONATOR,CRYSTAL HC49/SM4H 25MHZ +/ 50 PPM MISCELLANEOUS P001 6726VV0006K REMOTE CONTROLLER RECEIVER,38KHZ ACCESSORIES 3828VA0352L MANUAL,OWNERS MU50PZ41VS ZENITH 6710V00092Q REMOTE CONTROLLER,MU50PZ41S ZENITH 6410VUH005A POWER CORD,PS204 125V/13A VOLEX UL/CSA 6612VMV002B JACK,DRAWING UCTEX031 UGCOM 6850V00001A CABLE,FLAT 15660751 DVI A/D TO A/D 2000MM...
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  • Page 36 All manuals and user guides at all-guides.com A/V NTSC(TOP) INTERFACE FIX(TOP) PRINTED CIRCUIT BOARD MAIN(TOP) INTERFACE FIX(BOTTOM) FAN CONTROL(TOP) A/V NTSC(BOTTOM) FAN CONTROL(BOTTOM) LOCAL KEY(TOP) AUDIO(TOP) LOCAL KEY(BOTTOM) MAIN(BOTTOM) POWER S/W(TOP) AUDIO(BOTTOM) RIGHT SPK(TOP) RIGH PRE-AMP(TOP) PRE-AMP(BOTTOM)

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