Sharp VT-3418X - Page 82

VT-341 8X
VT-5118X
DESCRIPTION OF TV SECTION
SCHEMATIC DIAGRAM
I
SAFEN NOTE:
1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE
REPLACE/NC PARTS.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS
OPERATING.
IMPORTANTSAFEN NOTICE:
BE SURE TO USE GENUINE PARTS FOR SECURING THE SAFETY
AND RELIABILITY OF THE SET.
PARTS MARKED WITH “‘A” (
) ARE IMPORTANT
FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO
REPLACE THESE PARTS WITH SPECIFIED ONES FOR
MAINTAINING THE SAFETYAND PERFORMANCE OF THE SET.
SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE ( - - - - - - -) IS
DIRECTLY CONNECTED WITHACMAINS VOLTAGE.
WHEN SERVICING THE AREA, CONNECT AN ISOLATING
TRANSFORMER BETWEEN TV RECEIVERAC LINE TO ELIMINATE
HAZARD OF ELECTRICSHOCK.
CAUTION:
This circuit diagram is original one, therefore there may be a
slight difference from yours.
NOTES:
I. The unit of resistance “ohm ” is omitted.
(K = 7000 ohms,
M = IMeg ohm).
2. A// resistors are l/8 watt, unless otherwise
no ted.
3. The unit of capacitance “F” is omitted.
(p = ,J, P = ,&I.
4. The values in parentheses are the ones in the
PB mode; the values without parentheses are
the ones in the RECmode.
VOLTAGE MEASUREMENT CONDITIONS:
.l. DC voltages are measured between points
indicated and chassis ground by VTVM, with
AC 1 IO-24OV, 50/6OHz supplied to unit and all
controls are set to normal viewing picture
unless othefwise noted.
2. Voltages are measured with 7OOOO~V B&W of
co/our signal.
WAVEFORM MEASUREMENT CONDI-
TIONS:
7OOOO~V, 87.5% modulated co/our bar signal
is fed into tuner.
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