Emerson-Radio-and-Phonograph-Corp-120366B 电路原理图.pdf

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1、VOLUME R-18, MOST-OFTEN-NEEDED 1958 RADIO SERVICING INFORMATION Emerson Radio MODEL - 867B CHASSIS - 120366B This mode! is identical to the model 867B using chassis 120349B except for the substitution of a couplate (Emerson Pt. No. 923041) and individual components on chassis 120366B for the two mod

2、ules used on chassis 120349B. RESISTORS ARE IN OHMS ( K 1000 OHMSANO 1/2 WATT UNLESS OTHERWISE SPECIFIED CAPACITORS LESS THAN UNITY ARE IN MPO CAPACITORS MORE THAN UNITY ARE IN MMFOS UNLESS OTHERWISE NOTEO IITVOUS AC tlNE ISOCPS) CHASSIS NO. 120 366 - B Tube Location Diagram of Cbassis 120349B O0 I2

3、BE6 35W4 1. DISASSEMBLY INFORMATION Remove all knobs and remove masonite back. MODULE PT. NO. 750011 2. Remove 2 “C* and 2 standard washers securing changer hold down bolts to mounting board (which is part of cabinet), remove 2 three-prong plugs and remove changer (unstaple fish paper wire holders.)

4、 CTA-p0 CT8-j-Qi KEY TT 3. To remove radio: a ) Remove AC interlock, slide off pilot light as sembly. b) Unsolder 2 speaker leads atSP-1 (Woofer), remove antenna assembly from bracket. c) Remove Phillips head screws securing radio to cabinet (on top). d) Remove 45 r.p.m. spindle holder. 4 To reassem

5、ble, reverse procedures # through #3. ALIGNMENT INSTRUCTIONS STEP DUMMY ANTENNA SIGNAL GENERATOR COUPLING SIGNAL GENERATOR FREQUENCY RADIO DIAL SETTING OUTPUT METER ADJ UST REMARKS I .005 mfd. High side to grid (pin 7) of VI (12BE6). Low side to B*neutral (See item 2 under alignment in* structions).

6、 455 KC Variable condenser fully open. Across voice coil. T2.T1 Adjust for maximum output. 2 Form loop of several turns and radiate signal into receiver 1620 KC M Across voice coil. Trimmer C-TB (Osc.) Adjust for maximum output. 3 1400 KC Tune for maximum output. Across voice coil. Trimmer C-TA (Ant.) Adjust for maximum output. 58 收音机爱 好者资料库 RadioFans.CN