Sharp VT-3428X, Service Manual, Page: 65 / 136

DESCRIPTION OF TV SECTION
SCHEMATIC DIAGRAM
SAFETY NOTE:
DISCONNECT THE
AC PLUG FROM THE AC OUTLET BEFORE
PARTS.
SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS
OPERATING.
IMPORTANT SAFETY NOTICE:
BE SURE TO USE GENUINE PARTS FOR SECURING THE SAFETY
AND RELIABILITY OF THE SET.
PARTS MARKED WITH ( ) ARE IMPORTANT
FOR THE SAFETY OF THE SET. BE SURE TO
REPLACE THESE PARTS WITH SPECIFIED ONES FOR
MAINTAINING THE SAFETYAND PERFORMANCE OF
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 AC LINE TO
HAZARD OF
CAUTION:
This circuit diagram
is original one, therefore
there may be a
slight
difference from yours.
NOTES:
The unit of resistance “ohm is omitted.
= ohms, M = Meg ohm).
resistors are watt, unless otherwise
noted.
The unit of capacitance is omitted.
=
The values in parentheses are the ones in the
mode; the values without parentheses are
the ones in the mode.
VOLTAGE MEASUREMENT CONDITIONS:
DC voltages are measured between points
indicated and chassis ground by with
AC supplied to unit and all
controls are set to normal viewing picture
unless otherwise no ted.
Voltages are measured with B&W or
signal.
WAVEFORM MEASUREMENT CONDI-
TIONS:
modulated bar signal
is fed into tuner.