Waveforms - Hitachi 37HLX99/DW2-H Service Manual

Numbers inside circle correspond to locations shown in the circuit diagram. Waveforms taken
using a Color Bar signal with H sync 31 khz and V. sync 60 hz and a X10 probe.
Signal amplitude and DC level shown at
IT02 Pin 41 MPEG-DATA 0
1
IT02 Pin 48 MPEG-DATA 3
4
IT02 Pin 54 MPEG-DATA 5
7
10 IT02 Pin 63 MPEG_DATA EN
TABLE OF CONTENTS

WAVEFORMS

∆
and @ respectively.
IT02 Pin 42 MPEG-DATA 1
2
4.0 V
IT02 Pin 50 MPEG-DATA 4
5
4.0 V
IT02 Pin 57 MPEG-DATA 6
8
5
4.0 V
11 IT02 Pin 66 MPEG_PKT_SYNC
3
4.0 V
6
4.0 V
9
4.0 V
4.0 V
QAM/VSB DEMODULATOR
click here to go to circuit diagram
73
DW2U
IT02 Pin 47 MPEG-DATA 2
4.0 V
IT02 Pin 51 MPEG-CLK
IT02 Pin 59 MPEG-DATA 7/SER_DATA
4.0 V
SUB PWB