HITACHI 42HDS52A
Manual de Servicio

PA
SERVICE MANUAL
NTSC D1 P W1 -U D A hassis C

No. 0219
42HDX62A/DW1-UA 42HDT52A/DW1-UA 42HDS52A/DW1-UB

R/C: CLU-3851WL / CLU-3852WL

This ADDENDUM is made due to the new models 42HDX62A (DW1-UA), 42HDT52A (DW1-UA) and 42HDS52A (DW1-UB). They are different to models 42HDX62 (DW1-UA), 42HDT52 (DW1-UA) and 42HDS52 (DW1-UB). The Main difference is that "without A" Models use "A2" Plasma Panel and "with A" Models use "A3" Plasma Panel. Software (Digital Main PWB) is also different because of Plasma Panel difference. Dimensions of both Family Models are SAME. Refer to Service Manual PA0208 ("without A" Models) when service "with A" Models. All Adjustments are same. This ADDENDUM indicates only the Differences, Updates and Special Considerations to be taken when Servicing either Models.

CONTENTS
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 PARTS LISTS UPDATE AND DIFFERENCES (Digital Sub PWB) . . . . . . . . . . . . . . . . . 2 DIGITAL SUB PWB LAYOUT DIFFERENCES (P#JA05978 & P#JA06422) . . . . . . . . . . . . 3 PARTS LISTS UPDATE AND DIFFERENCES (Terminal PWB) . . . . . . . . . . . . . . . . . . . 5 PARTS LISTS UPDATE AND DIFFERENCES (A2 & A3 Panels, Miscellaneous) . . . . . . 6 LOCATION OF DIFFERENCE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

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. Before servicing this chassis, it is important that technician read the �IMPORTANT SAFETY INSTRUCTIONS� in Service Manual PA0208 ("without A" Models).

SAFETY NOTICE USE ISOLATION TRANSFORMER WHEN SERVICING Components having special safety characteristics are identified by a ! on the schematics and on the parts list in Service Manual 0208 ("without A" Models) . Before servicing the chassis, it is important that the service technician read and follow the �Important Safety Instructions� shown in Service Manual PA0208 ("without A" Models).

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

PLASMA DISPLAY PANEL
APRIL 2006 HHEA-MANUFACTURING DIVISION