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Zenith P50W28A Series Service Manual

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SERVICE MANUAL

Product Type:
Chassis:
Manual Series:
Manual Part #:
Model Line:
Product Year:
Printed in Korea
PLASMA
RF-02KE
2002
CONTENTS
Description of Controls .................................................4
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
Model Series:
P50W28A

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Summary of Contents for Zenith P50W28A Series

  • Page 1: Service Manual

    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

    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............PRINTED CIRCUIT BOARD ...........

  • Page 4: Description Of Controls

    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 Monitor is turned on Buttons Connection Options...

  • Page 5: External Equipment Connections

    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 EXTERNAL SPEAKER (8Ω) AC INPUT S-VIDEO INPUT...

  • Page 6: Remote Control Key Functions

    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

    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 Power requirement AC120V, 60Hz Resolution 1366 x 768 (Dot)
  • Page 8 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 49.725 74.55 832x624 640x350 37.861 85.08 48.363 60.00 31.469 70.08 56.476 70.06 1024x768 720x400 37.927 85.03 60.023 75.02 31.469 59.94 68.677 84.99...

  • Page 9: External Equipment Viewing Setups

    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). - Connect the VIDEO INPUT socket (yellow) with the BNC-RCA adapter to the VIDEO INPUT on the Monitor. - If you have a mono VCR, connect the audio cable from the VCR to the AUDIO (L/MONO) input on the Monitor.
  • Page 10 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 • Connect DTV set-top box video output to monitor COMPONENT (DVD/DTV INPUT) or to the monitor RGB1 (PC/DTV INPUT), RGB2 (PC/DTV input) connector depending on your set-top box connectors.

  • Page 11: External Control Device Setup

    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 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 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 Special menu.
  • Page 14 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. PIP Position (Command:q) Transmission G To select sub picture position for PIP. [k][k][ ][Set ID][ ][Data][Cr] You can also adjust the sub picture position using Data Min: 0 ~ Max: 64...
  • Page 15 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] Data 0: Orbiter off Data 0: Normal 1: Cool...

  • Page 16: Ir Code(Nec Format)

    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

    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: Required Equipment

    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: Required Test Equipment

    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: Diagrams

    BLOCK DIAGRAM...
  • Page 21 NOTES...

  • Page 22: Exploded View

    EXPLODED VIEW...

  • Page 23: Exploded View Parts List

    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 PCB ASSEMBLY,XRLT ASSY 50WX1 4LAYER LEFT TOP 6871QLH019A...

  • Page 24: Replacement Parts List

    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. means as follows; CE : Electrolytic RN : Metal Film RF : Fusible...
  • Page 25 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 D802 0DD226239AA CHIP KDS226 SOT23 Q404 0TR387500AA...
  • Page 26 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 47UF MVG 16V M C835 0CE476SF6DC 47UF MVG 16V M...
  • Page 27 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 0CE105SK6DC 1UF MVG 50V M CA104 CN138 CA105 0CE105SK6DC 1UF MVG 50V M CN141 0CE476SF6DC 47UF MVG 16V M...
  • Page 28 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 RA102...
  • Page 29 X700 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...
  • Page 36 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) POWER S/W(BOTTOM) AUDIO(BOTTOM) RIGHT SPK(TOP) RIGHT SPK(BOTTOM) PRE-AMP(TOP) PRE-AMP(BOTTOM)

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