21J-FV1RU
21J-FV1RU
CHAPTER 9. DESCRIPTION OF SCHEMAService ManualTIC DIAGRAM
[1] DESCRIPTION OF SCHEMATIC DIAGRAM
SAFETY NOTES:NOTES:
1.DISCONNECTTHEACPLUGFROMTHEACOUT-1. The unit of resistance "ohm" is omitted.
LET BEFORE REPLACING PARTS.(K = 1000 ohms, M = Mega ohm).
2.SEMICONDUCTORHEATSINKSSHOULDBERE-2. All resistors are 1/16 watt, unless otherwise noted.
GARDED AS POTENTIAL SHOCK HAZARDS
3. All capacitors are ?F, unless otherwise noted.
WHEN THE CHASSIS IS OPERATING.(P = ??F).
IMPORTANT SAFETY NOTICE:
VOLTAGE MEASUREMENT CONDITIONS:
PARTS MARKED WITH "" () ARE IMPO-
1. Voltages in parenthesis measured with no signal.
TANT FOR MAINTAINING THE SAFETY OF THE SET.
BE SURE TO REPLACE THESE PARTS WITH SPECI-2. Voltages without parenthesis measured with 3mV B & W
or Colour signal.
FIED ONES FOR MAINTAINING THE SAFETY AND
PERFORMANCE OF THE SET.3. All the voltages in each point are measured with VTVM.
SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE (-) IS DI-WAVEFORM MEASUREMENT CONDITIONS:
RECTLY CONNECTED WITH AC MAINS VOLTAGE.1. The colour bar generator signal of 1.0V peak applied at
WHEN SERVICING THE AREA, CONNECT AN ISOLAT-pin (41) of IC801.
ING TRANSFORMER BETWEEN TV RECEIVER AND2. Approximately 4V AGC bias.
AC LINE TO ELIMINATE HAZARD OF ELECTRIC
SHOCK.
CAUTION:
This circuit diagram is a standard one, prited circuits may
be subject to change for product improvement without pri-
or notice.
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ACEC
