The Full Power supply produces two 130 volt, a 35 volt, a 22 volt, a minus 22 volt, a minus 35 volt, a
plus audio supply, and a minus audio supply. The Audio supply is a plus and minus 19 volts in sets
that use the 20-watt audio amplifier. The Audio supply voltages will be four volts higher in sets with a
30-watt audio amplifier.
When troubleshooting, notice that the Hot ground for the Full power supply is separated from the main
Hot ground on the Input Panel by Choke 5330. To ensure correct readings, use the Hot ground in the
Full power supply. If the power supply is overloaded or the operating voltage is missing, the voltage
on Pin 1 of the IC will be changing between 9.4 and 14.5 volts. Each time the voltage reaches 14.5
volts, drive will appear on Pin 3 of the IC. If a voltage is present on Pin 1 that is greater than 14.5
volts, and there is no drive on Pin 3, the IC should be replaced. If drive is present on Pin 3, check for
drive on the Drain of 7301. If drive is present here, check for a short on the 130-volt lines, a problem
in the feedback circuit, or a problem with the operating voltage.
Power Fail Shutdown
Figure 6
Содержание DPTV305
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Страница 114: ...All Models 7621 HDR2002 Interconnect ...
Страница 115: ...All Models 7621 Power Supply Panel Schematic ...
Страница 116: ...All Models 7621 LSB Panel Schematic 1 of 3 ...
Страница 117: ...All Models 7621 LSB Panel Schematic 2 of 3 ...
Страница 118: ...All Models 7621 LSB Panel Schematic 3 of 3 ...
Страница 119: ...All Models 7621 SSM Panel Schematic 1 of 8 ...
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Страница 121: ...All Models 7621 SSM Panel Schematic 3 of 8 ...
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Страница 127: ...All Models 7621 SSB Module Schematic 1 of 6 ...
Страница 128: ...All Models 7621 SSB Module Schematic 2 of 6 ...
Страница 129: ...All Models 7621 SSB Module Schematic 3 of 6 ...
Страница 130: ...All Models 7621 SSB Module Schematic 4 of 6 ...
Страница 131: ...All Models 7621 SSB Module Schematic 5 of 6 ...
Страница 132: ...All Models 7621 SSB Module Schematic 6 of 6 ...
Страница 133: ...All Models 7621 Red CRT Panel Schematic ...
Страница 134: ...All Models 7621 Green CRT Panel Schematic ...
Страница 135: ...All Models 7621 Blue CRT Panel Schematic ...
Страница 136: ...All Models 7621 Auto Convergence Panel 1 of 3 ...
Страница 137: ...All Models 7621 Auto Convergence Panel 2 of 3 ...
Страница 138: ...All Models 7621 Auto Convergence Panel 3 of 3 ...
Страница 140: ...NOT USED IN MODELS 51MP392H 17 51MP3964H 17 7621 Side Jack Panel Schematic ...
Страница 141: ...USED ONLY IN MODELS 51MP392H 17 51MP3964H 17 7621 Side Jack Panel Schematic ...
Страница 142: ...All Models 7621 Keyboard Panel Schematic ...
Страница 145: ...All Models 7621 HOP Panel Schematic 1 of 2 ...
Страница 146: ...All Models 7621 HOP Panel Schematic 2 of 2 ...
Страница 155: ...All Models 7621 Power Supply Panel CBA Top View ...
Страница 156: ...All Models 7621 Power Supply Panel CBA Bottom View ...
Страница 157: ...All Models 7621 LSB Panel CBA Top View ...
Страница 158: ...All Models 7621 LSB Panel CBA Bottom View ...
Страница 159: ...All Models 7621 SSM Panel CBA Top View ...
Страница 160: ...All Models 7621 SSM Panel CBA Bottom View ...
Страница 161: ...All Models 7621 SSB Module CBA Top View ...
Страница 162: ...All Models 7621 SSB Module CBA Bottom View ...
Страница 163: ...All Models 7621 Keyboard Panel CBA Top View ...
Страница 164: ...All Models 7621 Keyboard Panel CBA Bottom View ...
Страница 165: ...All Models 7621 CRT Panel CBA Top View ...
Страница 166: ...All Models 7621 CRT Panel CBA Bottom View ...
Страница 167: ...All Models 7621 Auto Convergence Panel CBA Top View ...
Страница 168: ...All Models 7621 Auto Convergence Panel CBA Bottom View ...
Страница 169: ...All Models 7621 HOP Panel CBA Top View ...
Страница 170: ...All Models 7621 HOP Panel CBA Bottom View ...
Страница 171: ...All Models 7621 PIP Panel CBA Single 2 Tuner Panels Top View ...
Страница 172: ...All Models 7621 PIP Panel CBA Single 2 Tuner Panels Bottom View ...
Страница 173: ...All Models 7621 Side Jack Panel CBA Top View ...
Страница 174: ...All Models 7621 Side Jack Panel CBA Bottom View ...
Страница 175: ...All Models 7621 Side Jack Panel CBA Top View ...
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Страница 177: ...All Models 7621 3D Comb Filter Panel CBA Top View ...
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Страница 179: ...All Models 7621 DW PIP Panel CBA Top View ...
Страница 180: ...All Models 7621 DW PIP Panel CBA Top View ...
Страница 181: ...All Models 7621 DVI Panel CBA Top View ...
Страница 182: ...All Models 7621 DVI Panel CBA Bottom View ...
Страница 183: ...All Models 7621 Rear Switch Panel Top View only ...
Страница 184: ...43 Cabinet Exploded View ...
Страница 185: ...46 51 55 60 Cabinet Exploded View ...
Страница 186: ...50 60 Cabinet Exploded View ...
Страница 187: ...CRT Assembly Exploded View ...
Страница 780: ...55PW9383 17F continued S Safety Part Be sure to use exact replacement part ...
Страница 1592: ...55PW9383 17F continued S Safety Part Be sure to use exact replacement part ...
Страница 1615: ...55RW9515 35 continued S Safety Part Be sure to use exact replacement part ...