Sharp 21V-FS700S, Service Manual

Page: 67 / 91

21V-FS700S
9 – 1
TV 21V-FS700S Service Manual 21V-FS700S Market E
CHAPTER 9.
DESCRIPTION OF SCHEMATIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIAGRAM
DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE
REPLACING PARTS.
SEMICONDUC TOR HEAT SINKS SHOULD BE REGARDE D AS
POTENTIA L
SHOCK HAZARD S WHEN THE CHASI S IS
OPERATING.
1.
2.
SAFETY NOTES:
NOTES:
1. The unit of resistance "ohm" is omitted.
(K = 1000 ohms, M = Meg ohm).
2. All resistors are 1/16 watt, unless otherwise noted.
3. All capacitors are µF, unless otherwise noted. (P = µµF).
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH " " ( ) ARE IMPORTANT FOR
MAINTAINING THE SAFETY OF THE SET. BE SURE TO REPLACE
THESE PARTS WITH SPECIFIE D ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.
SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE ( ) IS DIRECTLY
CONNECTED WITH AC MAINS VOLTAGE.
WHEN
SERVICIN G THE AREA, CONNEC T AN ISOLATING
TRANSFORME R BETWEE N TV RECEIVE R AND AC LINE TO
ELIMINATE HAZARD OF ELECTRIC SHOCK.
-
VOLTAGE MESUREMENT CONDITIONS:
1. Voltages in parenthesis measured with no signal .
2. Voltages without parenthesis measured with 3mV
B & W or Colour signal.
3. All the voltages in each point are measured with VTVM.
WAVEFORM MEASUREMENT CONDITIONS:
2. Approximately 4.0V AGC bias.
CAUTION:
This circuit diagram is a standard one, prited circuits may be subject to
change for product improvement without prior notice.
1. The colour bar generator signal applied at TU201, 2.0V
peak to peak checked at pin (34) of IC 1001.