Sharp 29H-FG3RU, Service Manual

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29H-FG3RU
WAVEFORMS
1 2 3 4
5
6 7 8
9 0
q w
e r t
y
u i o p
a
Horizontal Rate
Pin 1 Vp-p = 2.02 V
Horizontal Rate
Pin 2 Vp-p = 1.30 V Vertical Rate
Pin 3 Vp-p = 2.26 V Vertical Rate
Pin 4 Vp-p = 2.40 V
Vertical Rate
Pin 5 Vp-p = 4.16 V
Vertical Rate
Pin 6 Vp-p = 29.40 V Vertical Rate
Pin 7 Vp-p = 60.00 V Vertical Rate
Pin 8 Vp-p = 1.60 V
Horizontal Rate
Pin 9 Vp-p = 262.0 V Horizontal Rate
Pin 10 Vp-p = 262.0 V
Horizontal Rate
Pin 11 Vp-p = 176.0 V
Horizontal Rate
Pin 12 Vp-p = 11.20 V
Horizontal Rate
Pin 13 Vp-p = 1.024 kV Horizontal Rate
Pin 14 Vp-p = 248.0 V Horizontal Rate
Pin 15 Vp-p = 31.20 V
Horizontal Rate
Pin 16 Vp-p = 1.84 V
Horizontal Rate
Pin 17 Vp-p = 2.04 V Horizontal Rate
Pin 18 Vp-p = 2.10 V Horizontal Rate
Pin 19 Vp-p = 120.0 V
Horizontal Rate
Pin 20 Vp-p = 106.0 V
Horizontal Rate
Pin 21 Vp-p = 134.0 V
DESCRIPTION OF SCHEMATIC DIAGRAM
SAFETY NOTES:
1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE
REPLACING PARTS.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OP-
ERATING.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH “
å
” ( ) ARE IMPORTANT FOR
MAINTAINING THE SAFETY OF THE SET. BE SURE TO RE-
PLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAIN-
ING THE SAFETY AND PERFORMANCE OF THE SET.
SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE ( ) IS DIRECTLY
CONNECTED WITH AC MAINS VOLTAGE.
WHEN SERVICING THE AREA, CONNECT AN ISOLATING TRANS-
FORMER BETWEEN TV RECEIVER AND AC LINE TO ELIMINATE
HAZARD OF ELECTRIC SHOCK.
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
µ F, unless otherwise noted. (P = µµ F).
VOLTAGE MEASUREMENT CONDITIONS:
1. Voltage in parenthesis measured with no Signal.
2. Voltages without parenthesis measured with PAL Colour-
Signal.
3. All the voltages in each point are measured high impedance
volt-meter.
WAVEFORM MEASUREMENT CONDITIONS:
1. RF colour bar signal of 2.0V peak to peak applied at RF Tuner
TU51.
2. Approximately 4.0 V AGC bias (without signal).