Zenith C32V28 Servisní příručka

SERVICE MANUAL SERVICE MANUAL Product Type: Chassis: Manual Part #: Model Line: Product Year: Model Series:CONTENTSGeneral Informa

FACTORY MENU3828VD0171G 2-7 DIGITAL FCS - FACTORY MENU020-F GDRIVE G channel drive gain control. Rang

FACTORY MENU3828VD0171G 2-8 DIGITAL FCS- FACTORY MENU054-F SHPF0: Sharpness fo setting. 3= 3Mhz @Nor

FACTORY MENU3828VD0171G 2-9 DIGITAL FCS - FACTORY MENU094-F AFC_COMP: HV fluctuation compensationamo

FACTORY MENU3828VD0171G 2-10 DIGITAL FCS- FACTORY MENU138-F READM: Read mode master channel. 0=Read-

FACTORY MENU3828VD0171G 2-11 DIGITAL FCS - FACTORY MENU181-F GCMON: Progressive picture improvement.

FACTORY MENU3828VD0171G 2-12 DIGITAL FCS - FACTORY MENU227-F R-CUTOFF NTSC: Red cutoff control is use

FACTORY MENU3828VD0171G 2-13 DIGITAL FCS - FACTORY MENU020-F PIN_AMP OFFSET021-F UP_CPIN OFFSET022-F

FACTORY MENU3828VD0171G 2-14 DIGITAL FCS - FACTORY MENU060-F AC BLK LEV SVGA: Black level for AC cou-

FACTORY MENU3828VD0171G 2-15 DIGITAL FCS - FACTORY MENU099-F R-CUTOFF Y PrPb: Red cutoff control isu

CIRCUIT OVERVIEW3828VD0171G 3-1 DIGITAL FCS - CIRCUIT OVERVIEWBASIC CIRCUIT THEORYPOWER SUPPLY DEFINITI

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS3828VD0171G i DIGITAL FCS - SAFE

CIRCUIT OVERVIEW3828VD0171G 3-2 DIGITAL FCS - CIRCUIT OVERVIEWWhen QX3204 is turned off some of thisene

SERVICING3828VD0171G 3-3 DIGITAL FCS - SERVICINGPURITY ADJUSTMENT1. Purity tab positioning. Set

SERVICING3828VD0171G 3-4 DIGITAL FCS - SERVICINGHORIZONTAL-TILT WEDGE ADJUST-MENTThe vertical li

SERVICING3828VD0171G 3-5 DIGITAL FCS - SERVICINGVIDEO OUTPUT AMP ICIC5121, IC5141 and IC5161 cons

SERVICING3828VD0171G 3-6 DIGITAL FCS - SERVICINGSIGNALSThree types of signals, ATSC, NTSC andSVG

SERVICING3828VD0171G 3-7 DIGITAL FCS - SERVICINGIn the output stage the nominal inputsignal will

MODEL PARTS3828VD0171G 4-1DIGITAL FCS-49 SERIES MODEL PARTSPART NUMBER DESCRIPTIO

MODEL PARTS3828VD0171G 4-2DIGITAL FCS-49 SERIES MODEL PARTSPART NUMBER DESCRIPTIO

MODEL PARTS3828VD0171G 4-3DIGITAL FCS-49 SERIES MODEL PARTSPART NUMBER DESCRIPTIO

MODEL PARTS3828VD0171G 4-4DIGITAL FCS-49 SERIES MODEL PARTSPART NUMBER DESCRIPTIO

PRODUCT SAFETY SERVICING GUIDELINES FOR AUDIO-VIDEO PRODUCTS3828VD0171G ii DIGITAL FCS - SAF

MODEL PARTS3828VD0171G 4-5DIGITAL FCS-49 SERIES MODEL PARTSPART NUMBER DESCRIPTIO

MODEL PARTS3828VD0171G 4-6DIGITAL FCS-49 SERIES MODEL PARTSPART NUMBER DESCRIPTIO

MODEL PARTS3828VD0171G 4-7DIGITAL FCS-49 SERIES MODEL PARTS All FC models leve

12354678MBR3447C6710V00121A(124-00233-04)H27G48S Exploded View 5-13828VD0171EFCS 48 SERIES SHEET 11 2 3 4 5 6 7 8 9 10REF DESCRIPTION H27G 48S1 CAB

12354678REF DESCRIPTION H32G48S1 CABINET ASSEMBLY 3091V00496K2 SPEAKER, FULLRANGE 6400VA0025B3 CHASSIS ASSEMBLY KEYBOARD 3141VSNC61H4 WINDOW 3790V007

Diagram Interconnect Circuit1 2 3 4 5 6 7 8 9 10GDCBEFA6-1CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS.

AV Switch1 2 3 4 5 6 7 8 9 10GDCBEFA6-2CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WITH P

INSTALLER MENU3828VD0171G 2-1 DIGITAL FCS - INSTALLER MENUINSTALLER MENUUse the Installer Menu to set

Video Processor1 2 3 4 5 6 7 8 9 10GDCBEFA6-3CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY

Video Sync Processor1 2 3 4 5 6 7 8 9 10GDCBEFA6-4CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE

RGB Switcher1 2 3 4 5 6 7 8 9 10GDCBEFA6-5CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WIT

Scan Converter1 2 3 4 5 6 7 8 9 10GDCBEFA6-6CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY W

Tilt Circuit1 2 3 4 5 6 7 8 9 10GDCBEFA6-7CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WIT

Tuner1 2 3 4 5 6 7 8 9 10GDCBEFA6-8CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WITH PART

Audio Processor1 2 3 4 5 6 7 8 9 10GDCBEFA6-9CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY

Microcontroller1 2 3 4 5 6 7 8 9 10GDCBEFA6-10CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY

Power Supply1 2 3 4 5 6 7 8 9 10GDCBEFA6-11CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WI

Horizontal & Vertical Deflection1 2 3 4 5 6 7 8 9 10GDCBEFA6-12CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESI

INSTALLER MENU3828VD0171G 2-2 DIGITAL FCS - INSTALLER MENU7-I. START VOLUMEThis function allows the

AC Input1 2 3 4 5 6 7 8 9 10GDCBEFA6-13CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WITH P

Switched PWS1 2 3 4 5 6 7 8 9 10GDCBEFA6-14CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WI

Standby PWS1 2 3 4 5 6 7 8 9 10GDCBEFA6-15CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WIT

MPI1 2 3 4 5 6 7 8 9 10GDCBEFA6-16CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WITH PART N

RGB Card Circuit1 2 3 4 5 6 7 8 9 10GDCBEFA6-17CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONL

RGB PREAMP1 2 3 4 5 6 7 8 9 10GDCBEFA6-18CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WITH

Edge Connector1 2 3 4 5 6 7 8 9 10GDCBEFA6-19CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY

Video Output1 2 3 4 5 6 7 8 9 10GDCBEFA6-20CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY WI

863254107121151114139CN16630GL005154567VERT-FRONT+5VHORZ-FRONTR-FRONTG-FRONTB-FRONT123458769101112CN2F6366-921L1VIDEO-FRONT-INCAMPORT-SENSECOMPUTER-SE

Keyboard Circuit1 2 3 4 5 6 7 8 9 10GDCBEFA6-22CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONL

INSTALLER MENU3828VD0171G 2-3 DIGITAL FCS - INSTALLER MENUNote: If set to 0, Auto program is locked; (

Ir Led Circuit1 2 3 4 5 6 7 8 9 10GDCBEFA6-23CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY

Small Signal Bottom1 2 3 4 5 6 7 8 9 10GDCBEFA6-24CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE

Small Signal Top1 2 3 4 5 6 7 8 9 10GDCBEFA6-25CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONL

Large Signal Top1 2 3 4 5 6 7 8 9 10GDCBEFA6-26CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONL

One Panel Bottom1 2 3 4 5 6 7 8 9 10GDCBEFA6-27CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONL

One Panel Top1 2 3 4 5 6 7 8 9 10GDCBEFA6-28CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIRCOMPONENTS DESIGNATORS. REPLACE ONLY W

zenith

INSTALLER MENU3828VD0171G 2-4 DIGITAL FCS - INSTALLER MENU58-I. FOR. AUDIO. COL. (Audio Menu Foregroun

INSTALLER MENU3828VD0171G 2-5 DIGITAL FCS - INSTALLER MENU80-I. UPN MSB-2User programmable number, mos

FACTORY MENU3828VD0171G 2-6 DIGITAL FCS - FACTORY MENUDETAILED DESCRIPTIONS OF FACTORY MENUITEMS000-