SERVICE MANUAL
D D P P 2 2 7 7 D D P P 2 2 7 7 D D
N N T T S S C C
SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TECHNICAL CAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
CIRCUIT PROTECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
REMOTE CONTROL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
REAR PANEL CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
DC VOLTAGE TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
PRINTED CIRCUIT BOARDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109
FINAL WIRING DRAWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
PWB Parts List Added ...................................................................................................................................... 184
CAUTION:
These servicing instructions are for use by qualified service personnel only. To reduce the risk of
electric shock do not perform any servicing other than that contained in the operating instructions
unless you are qualified to do so.
technician read the "IMPORTANT SAFETY INSTRUCTIONS" in this service manual.
Components having special safety characteristics are identified by a
Service Data and its supplements and bulletins. Before servicing the chassis, it is important that the service technician
read and follow the "Important Safety Instructions" in this Service Manual.
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
PROJECTION COLOR TELEVISION
MAY 2002
Version 0160.08
C C h h a a s s s s i i s s
TO GO TO A SECTION, CLICK ON IT'S HEADING
Before servicing this chassis, it is important that the service
SAFETY NOTICE
USE ISOLATION TRANSFORMER WHEN SERVICING
HHEA-MANUFACTURING DIVISION
PA
51SWX20B
57SWX20B
65SWX20B
57TWX20B
65TWX20B
R/C: CLU-5722TSI
CONTENTS
on the schematics and on the parts list in this
!
No. 0160
DP27
DP27
DP27
DP27D
DP27D
CLU-121S
updated 02/12/07
updated 1/16/03
updated 03/26/04
updated 1/26/03
updated 06/03/04