Westinghouse-Electric-Corp-H-746T5A 电路原理图.pdf

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1、VOLUME R-22, MOST-OFTEN-NEEDED 1962 RADIO SERVICING INFORMATION WESTINGHOUSE Models H-746T5A, H-747T5A, Chassis V-2395-1A, and Models H-808L5, H-809L5, Chassis V-2395-7, with clock circuit not shown. IZBtb CONVERTER Tl 1ST I.F. TRANS I2AV6 T2 OET 8 1ST AUDIO 2ND I.F. TRANS |- 50C5 OUTPUT 117 BLUE j

2、I GREEN L_“I? r i I R4I500K -1 -lAA/W- -L5 ! VOL ME S1eT4 CONTRO,- ; OPEN SCCONOART READS .4 fi _ VOICE COIL 2.650 COMBWATlON BOTH .SA 35W4 50 RECT. I. ALL VOLTAGES MEASURED FROM COMMON NEGATIVE USING A V.TVM, VOLUME CONTROL AT MINIMUM, TUNING CAPACITOR AT MAXIMUM LINE VOLTAGE SET AT II7 VA.C READIN

3、GS SHOULD BE AS SHOWN 20%. 2 ALL CAPACITANCE VALUES IN MFO AND ALL RESISTANCE VALUES IN OHMS UNLESS OTHERWISE SPECIFIED SWI AC OFF ON SWITCH I2AV6 I2BE6 I2BA6 SOCS 43343443 Bottom View of Chassis V-2395-1A TO T 3 PRINTED BOARD REMOVAL 1. Disengage volume control knob (located on side of cabinet) fro

4、m volume control shaft. 2. Remove two screws from rear of cabinet. 3. Loosen screw on bottom of cabinet slightly; then push forward on this screw to disengage AC line cord interlock. 4. Remove screw from bottom of cabinet. Front panel and attached PC board can now be removed from cabinet. 5. For PC board installation reverse the above procedure. 130 收音机爱 好者资料库 RadioFans.CN