Sharp 21HS-50N Manuel d'entretien - Page 26
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21HS-50N
Description of Schematic Diagram
Safety note:
1. Disconnect the AC plug from the AC outlet before
replacing parts.
2. Semiconductor heat sinks should be regarded
as potential shock hazards when the chassis is
operating.
Important safety note:
Parts marked with «
for maintaining the safety of the set. Be sure to
replace these parts with specified ones for
maintaining the safety and performance of the set.
CAUTION
This circuit diagram is original one, therefore
there may be slight difference from yours.
SCHEMATIC DIAGRAM
» (
) are important
!
WAVEFORMS
Note:
1. The unit of resistance «ohm»is omitted (K=1000 ohms.
M= Megaohm).
2. All resistors are 1/16 watt. unless otherwise noted.
3. All capacitors are µF, unless otherwise noted (P= µµF).
4. The capacitor with Part No. RC-FZ9XXXBMNJ is
designed to with stand 63V.
5. The capacitor with Part No. RC-FZ4XXXBMNJ is
designed to with stand 50V.
Service precaution:
The area enclosed by this line is directly (
connected with AC mains voltage.
When servicing the area, connect an insolating
transformer between TV receiver and AC line to
eliminate hazard of electric shock.
Waveform measurement condition:
Colour bar genetator signal of 70 dB from RF input.
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