10
PT3-H AVC3-U
CIRCUIT PROTECTION
CAUTION:
Below is an EXAMPLE only. See Replacement Parts List for details. The following symbol near the fuse
indicates fast operation fuse (to be replaced). Fuse ratings appear within the symbol.
6A
125V
F
6 A 125V
Example:
“RISK OF FIRE - REPLACE FUSE AS MARKED”
The rating of fuse F901 is 6A - 125V.
Replace with the same type fuse for continued protection
against fire.
INTRODUCTION
The 50HDT50 and 50HDT55 are a Plasma Television set; They are constituted by the combination of two main parts, an AUDIO VIDEO
CONTROL Center, and the Plasma Display monitor.
Each part has a model name and a chassis name:
The AVC center is a box that controls most of the user functions of the complete TV set and conditions the signal before it arrives to the
monitors.
The 50” monitor contains the displaying device, which is the plasma display panel module, and the driving circuitry, which receives the
signal from the AVC center and after processing, delivers the image to the display module.
This HITACHI Service Manual is intended for the qualified service personnel and it contains the necessary information for
troubleshooting the Plasma television set in case of malfunction.
DIMENSIONS:
50HDT50M/55M
AVC51
POWER RATINGS:
1
50HDT50M/55M
354
3.5
262
1.3
PT3-H
2
AVC51
30
0.5
26
2.7
AVC3-U
No.
Model Name
Indicated Value
Max Rating
Average
Rating (W)
(W)
Chassis
P
ST(W)
(W)
(A)
Part
Model Name
Chassis Name
Audio Video Control Center
AVC51
AVC3-U
50” Plasma Display Monitor
50HDT50M/55M PT3-H
PULL
POWER
STANDBY (RED) ON (GREEN)
CH+
CH-
VOL+
VOL-
INPUT/EXIT
AUDIO VIDEO CONTROL CENTER
430mm
240mm
85mm
Stand
Speakers
566mm
1423mm
1098.2mm
774mm
714mm
357mm
620.5mm
339mm
99mm
TABLE OF CONTENTS
Summary of Contents for 50HDT50
Page 34: ...34 PT3 H AVC3 U 4 7 WHITE BALANCE ADJUSTMENT OSD FLOW DIAGRAM BACK TO ADJUSTMENTS ...
Page 83: ...PRINTED CIRCUIT BOARD AVC3 U Audio Video PWB 83 PT3 H AVC3 U TABLE OF CONTENTS ...
Page 84: ...PRINTED CIRCUIT BOARD AVC3 U Audio Video PWB 84 PT3 H AVC3 U ...
Page 85: ...PRINTED CIRCUIT BOARD AVC3 U Power PWB 85 PT3 H AVC3 U ...
Page 86: ...PRINTED CIRCUIT BOARD AVC3 U Power PWB 86 PT3 H AVC3 U ...
Page 87: ...PRINTED CIRCUIT BOARD AVC3 U Control SW Jig PWB 87 PT3 H AVC3 U PT3 H FILTER PWB ...
Page 88: ...PT3 H AVC3 U PRINTED CIRCUIT BOARD PT3 H Signal Audio PWB 88 ...
Page 89: ...PRINTED CIRCUIT BOARD PT3 H Signal Audio PWB 89 PT3 H AVC3 U ...
Page 91: ...PT3 H AVC3 U BLOCK DIAGRAM FC4 Unit 91 BACK TO TABLE OF CONTENTS ...
Page 97: ...PT3 H AVC3 U AVC3 U CHASSIS WIRING DRAWING 97 ...
Page 98: ...98 PT3 H AVC3 U PT3 H CHASSIS WIRING DRAWING POWER UNIT X SUS FILTER INLET AUDIO VIDEO Y SUS ...