4
DP
55
g. X-radiation – TUBE: The primary source of X-
radiation in this receiver is the picture tube. The tube
utilized for the above mentioned function in this
chassis is specially constructed to limit X-radiation
emissions.
For continued X-radiation protection, the replacement
tube must be the same type as the original, Hitachi
approved type.
When troubleshooting and making test measure-
ments in a receiver with a problem of excessive high
voltage, avoid being unnecessarily close to the pic-
ture tube and the high voltage component.
Do not operate the chassis longer than is necessary
to locate the cause of excessive voltage.
h. X-radiation Shield –
1. This receiver is provided with X-ray shield plates
for protection against X-radiation. Do not remove
X-ray shield plates A, B, or C shown in Fig. 1
unnecessarily, when troubleshooting and/or
making test measurements.
2. To prevent X-radiation, after replacement of
picture tube and lens, confirm these components
to be fixed correctly to bracket and cabinet, and
not to be taken off easily.
Shield Plate A
Glass Lens for Shielding
Shield Plate B
Shield Plate C
Shield Plate D
Detailing X-radiation shield
Shield Plate C
Fig. 1. Installation of shield lens, shield cover and shield plates (oblique view).
IMPORTANT SAFETY INSTRUCTIONS
RED PRT ASS'Y
GREEN PRT ASS'Y
BLUE PRT ASS'Y
Содержание 51F710A/DP55
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Страница 102: ...DP55 CIRCUIT BLOCK DIAGRAM TABLE OF CONTENTS 101 ...
Страница 103: ...DP55 CONNECTION DIAGRAM TABLE OF CONTENTS 102 ...
Страница 107: ...106 DP55 CPT P W B TABLE OF CONTENTS ...
Страница 109: ...TABLE OF CONTENTS FINAL WIRING DIAGRAM TABLE OF CONTENTS TABLE OF CONTENTS DP55 108 ...
Страница 110: ...TABLE OF CONTENTS FINAL WIRING DIAGRAM TABLE OF CONTENTS TABLE OF CONTENTS DP55 109 ...
Страница 111: ...TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS FINAL WIRING DIAGRAM TABLE OF CONTENTS TABLE OF CONTENTS DP55 110 ...
Страница 112: ...TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS FINAL WIRING DIAGRAM TABLE OF CONTENTS TABLE OF CONTENTS DP55 111 ...
Страница 113: ...TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS FINAL WIRING DIAGRAM TABLE OF CONTENTS TABLE OF CONTENTS DP55 112 ...
Страница 114: ...TABLE OF CONTENTS TABLE OF CONTENTS TABLE OF CONTENTS FINAL WIRING DIAGRAM TABLE OF CONTENTS TABLE OF CONTENTS DP55 113 ...
Страница 153: ...BACK TO TABLE OF CONTENTS PRINTED CIRCUIT BOARDS DP55 SIGNAL PWB Solder side DP55 152 ...
Страница 157: ...BACK TO TABLE OF CONTENTS PRINTED CIRCUIT BOARDS DP55 DEFLECTION PWB Solder side DP55 156 ...
Страница 161: ...BACK TO TABLE OF CONTENTS PRINTED CIRCUIT BOARDS DP55 CPT PWB Solder side DP55 160 ...
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