Schematic Diagrams; Description Of Schematic Diagram - Sharp 28HW-53E Service Manual

28HW-53E
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 «
IMPORTANT FOR MAINTAINING THE SAFETY
OF THE SET. BE SURE TO REPLACE THESE
PARTS WITH SPECIFIED ONES FOR MAINTAIN-
ING THE SAFETY AND PERFORMANCE OF THE
SET.
SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE (
IS DIRECTLY CONNECTED WITH AC MAINS
VOLTAGE.
WHEN SERVICING THE AREA, CONNECT AN
ISOLATING TRANSFORMER BETWEEN TV
RECEIVER AND AC LINE TO ELIMINATE HAZ-
ARD OF ELECTRIC SHOCK.
WAVEFORM MEASUREMENT CONDITION:
Colour bar generator signal of 70 dB from RF input.
580V
41 Vp-p 15.625KHz
19V 50Hz
400Hz

DESCRIPTION OF SCHEMATIC DIAGRAM

» ( ) ARE
!
1.3 KV 15.625KHz
1.8 Vp-p 50Hz
20.5 Vp-p 50Hz
NOTE:
1. The unit of resistance «ohm»is omitted (K=1000
ohms. M= Megaohm).
2. All resistors
otherwise noted.
3. All resistors
wise noted.
4. All capacitors are mF, unless otherwise noted
(P= mmF).
5. The capacitor with Part No. RC-FZ9XXXBMNJ
is designed to with stand 63V.
6. The capacitor with Part No. RC-FZ4XXXBMNJ
is designed to with stand 50V.
)
CAUTION
This circuit diagram is original one, therefore
there may be light difference from yours.
4 Vp-p 15.625KHz
3.3V 50Hz
1.15 Vp-p
15.625KHz
24
are SMD, 1/16 watt. unless
are 1/8 watt. unless other-
215 Vp-p 50Hz
45 Vp-p 113 KHz FM
400Hz