3
SAFETY & PRECAUTIONS
4. Leakage current test
Confirm specified or lower leakage current between B(earth
ground, power cord plug prongs) and externally exposed accessi-
ble parts (RF terminals, antenna terminals, video and audio input
output terminals, microphone jacks, earphone jacks, etc.)
Measuring method:(Power ON) Insert load Z between B(earth
ground, power cord plug prongs) and exposed accessible parts.
Use on AC voltmeter to measure across both terminals of load Z.
See figure2 and following table.
Leakage current ratings for selected are as
AC Line Voltage
Region
Load Z
Leakage Cur-
rent(
i
)
Clearance Distance(d),(d’)
100V
Japan
1k
Ω
i
< 1 mArms
Exposed accessible parts
110 to 130V
USA &Canada
15kmF
1k
Ω
i
< 0.5mArms
Exposed accessible parts
110 to 130V
200 to 240V
Europe
Australia
2k
Ω
i
< 0.7mA peak
i
< 2mAdc
Antenna earth terminals
50k
Ω
i
< 0.7mA peak
i
< 1mAdc
Other terminals
This table is unofficial and for reference only. Be sure to confirm the precise values
for your particular country and locality.
NOTE
Содержание DVST7C3
Страница 1: ...Service Manual Video Cassette Recorder ALL T MECHA Hi Fi MONO Model PAL SECAM MODELS DVST7C3_ ST 821 ...
Страница 9: ...9 CIRCUIT INFORMATION 1 INTERCONNECT WIRING DIAGRAM ...
Страница 10: ...10 CIRCUIT INFORMATION 2 POWER CIRCUIT DIAGRAM ...
Страница 12: ...12 CIRCUIT INFORMATION 3 POWER BLOCK DIAGRAM ...
Страница 13: ...13 CIRCUIT INFORMATION 4 SYSCON CIRCUIT DIAGRAM ...
Страница 15: ...15 CIRCUIT INFORMATION 5 SERVO SYSCON BLOCK DIAGRAM ...
Страница 16: ...16 CIRCUIT INFORMATION 6 AV SECAM COLOR CIRCUIT DIAGRAM ...
Страница 18: ...18 CIRCUIT INFORMATION 7 1 VIDEO PLAYBACK PATH FOR PAL 7 2 VIDEO RECORD PATH FOR PAL ...
Страница 19: ...19 CIRCUIT INFORMATION 8 HIFI SW CIRCUIT DIAGRAM ...
Страница 21: ...21 CIRCUIT INFORMATION 9 PIF CIRCUIT DIAGRAM ...
Страница 23: ...23 COMPONENTS LOCATION GUIDE ON PCB BOTTOM VIEW PCB MAIN ...
Страница 24: ...24 DISASSEMBLY 1 PACKING ASS Y ...
Страница 25: ...25 DISASSEMBLY 2 FRONT PANEL ASSEMBLY DVST7J3 SERIES DVST7C3 SERIES ...
Страница 26: ...29 DISASSEMBLY 3 INSTRUMENT DISASSEMBLY 3 1 SET TOTAL ...