AV-28BD5EKI AV-28BD5EP AV-28BD5EE AV-28BD5EKIS AV-28BD5EPS AV-28BD5EES

BLOCK DIAGRAM

AV-28BD5EKI / AV-28BD5EP / AV-28BD5EE AV-28BD5EKIS / AV-28BD5EPS / AV-28BD5EES

SCART1 SCART2

VIDEO IN

STANDARD CIRCUIT DIAGRAM

n NOTE :
SWITCH CONTROL form #8-I501 and #-8 SCART1
1. RESISTANCE IS SHOWN IN OHM.

K=1000, M=1000000

SWITCHING CURCUIT
2. UNLESS OTHERWISE NOTED IN SCHEMATIC ALL CAPACITOR VALUES ARE EXPRESSED IN F

#4-I501

3. VOLTAGES READ WITH VTVM FROM POINT INDICATED TO CHASSIS GROUND USING A COLOR BAR SIGNAL
WITH ALL CONTROLS AT NORMAL LINE 230V AC VOLTAGE READINGS SHOWN ARE NORMAL VALUES AND MAY VARY +20% EXCEPT H.V

EXIT VIDEO IN

AUDIO IF

#28 #29

4. THIS CIRCUIT DIAGRAM IS A STANDARD ONE CIRCUIT PRINTED MAY BE SUBJECT TO CHANGE FOR PRODUCT
IMPROVEMENT WITHOUT PRIOR NOTICE.
IF=38.9MHz(All standard except L) =33.9MHz(L)

QSS OUT

SIF(5.5MHz for system B/G)

n WARNING :

BEFORE SERVICING THE CHASSIS, READ X-RAY RADIATION, SAFETY PRECAUTION, AND PRODUCT SAFETY NOTICE IN SERVICE MANUAL.

#23 #24

VIDEO PROCESSOR

TRAP 5.5MHz

VIDEO IF

VIDEO OUT

n PRODUCT SAFETY NOTE :
COMPONENTS MARKED WITH ARE IMPORTANT FOR MAINTAINING. THE SAFETY OF THE SET AND SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL OR SPECIFIED ONE IN THE PARTS LIST. DONT DEGRADE THE SAFETY THROUGH IMPROPER SERVICING.

MICRO CONTROLLER

#46 #47 #48

#51 #52 #53

AUDIO OUT SCART1

AUDIO IN SCART2

AUDIO SCART1

SOUND PROCESSOR

#36 #37

I702 MEMORY

II C BUS

BASE BAND SIGNAL

#49 #50

#52 #53

AUDIO AMPLIFIER

TO SPEAKERS/ HEAD PHONE

TO CRT BOARD

RGB OUT

CHROMA IN EXT RGB IN
n CAUTION TO SERVICE TECHNICIANS :
BEFORE RETURNING THE RECEIVER TO CUSTOMER, LEAKAGE CURRENT OR RESISTANCE MEASUREMENTS SHOULD BE PERFORMED TO DETERMINE THAT EXPOSED PARTS ARE PROPERLY INSULATED FROM THE SUPPLY CIRCUIT. RESISTOR CAPACITOR COIL

CONTENTS

n BLOCK DIAGRAM 2-2 n CIRCUIT DIAGRAM 2-3 n PATTERN DIAGRAMS 2-5

No.51709

Jun. 2000 No.51709

CIRCUIT DIAGRAM

PATTERN DIAGRAMS

CRT SOCKET PWB PATTERN

TP-91 (B1)

VP0006 DP6052