Admiral-21W1-21Y1-21Z1-21Z1A-Wallace电路原理图.pdf
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1、Figure 52. Sch Note: This schematic applies only to chassis VOLTAGE DATA (Voltages ghren on schematic) TV voltages taken with function switch on TV position. PICTURE control turned folly clockwise. CHANNEL control set on an unused channel. Other front controls set at approximately half rotation. Ver
2、t. Lin. and Height set at approximately half rotation. TV antenna disconnected from set with terminals shorted. Radio voltages V701 and V702 taken with function switch on Rad position; voltages measured from underside of tube sockets. When measured from top of tube sockets (with tube removed), B plu
3、s voltage at pins 5 and 6 of V701 and V702 will be approximately 275 volts. B plus voltages at V203 and V204, will be slightly higher when set is switched to Rad position. Voltages marked with an asterisk * will vary widely with control setting. Line voltage 117 volts AC. Voltages measured with a va
4、cuum tube voltmeter between tube socket terminals and chassis, unless otherwise indicated. Voltages at VlOl, V102, V306 measured from top of socket with lube removed. CAUTION Pulsed high voltages are present on the cap of V406, and on the filament terminals and cap of the 1B3GT tube. NO ATTEMPT SHOU
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