21XF30
21XF50
WAVEFORMS
1) 0.98 Vp-p2) 4.08 Vp-p3) 3.68 Vp-p4) 4.2 Vp-p5) 88.8 Vp-p6) 107.2 Vp-p
Horiz RateHoriz RateHoriz RateHoriz RateHoriz RateHoriz Rate
7) 109.6 Vp-p8) 3.32 Vp-p9) 2.28 Vp-p10) 138 Vp-p11) 9.12 Vp-p12) 0.13 Vp-p
Horiz RateVert RateHoriz RateHoriz RateHoriz RateVert Rate
13) 0.18 Vp-p14) 5.72 Vp-p15) 55.2 Vp-p16) 170 Vp-p17) 1104 Vp-p18) 324 Vp-p (AC110V)
485 Vp-p (AC220V)
Vert RateVert RateVert RateHoriz RateHoriz Rate
19) 1.9 Vp-p (V)
Horiz Rate
DESCRIPTION OF SCHEMATIC DIAGRAM
SAFETY NOTES:NOTES:
1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE1. The unit of resistance "ohm" is omitted.
REPLACING PARTS.(K = 1000 ohms, M = Mega ohm).
2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS2. All resistors are 1/16 watt, unless otherwise noted.
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OP-3. All capacitors are mF, unless otherwise noted.mmF). (P =
ERATING.
IMPORTANT SAFETY NOTICE:VOLTAGE MEASUREMENT CONDITIONS:
PARTS MARKED WITH " � " ( ) ARE IMPORT1.ANT FORVoltages in parenthesis measured with no signal.
MAINTAINING THE SAFETY OF THE SET. BE SURE TO REPLACE2. Voltages without parenthesis measured with 3mV B & W or Col-
THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THEour signal.
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 ( N� - N� ) IS DIRECTLY
CONNECTED WITH AC MAINS VOLTAGE.WAVEFORM MEASUREMENT CONDITIONS:
WHEN SERVICING THE AREA, CONNECT AN ISOLATING TRANS-1. The colour bar generator signal of 1.0V peak applied at pin (24)
FORMER BETWEEN TV RECEIVER AND AC LINE TO ELIMINATEof IC201.
HAZARD OF ELECTRIC SHOCK.2. Approximately 4V AGC bias .
31 |
ACEC
SHARP
