Ford-Motor-Car-Co-B9FA-18806C 电路原理图.pdf

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1、VOLUME R-19, MOST-OFTEN-NEEDED 1959 RADIO SERVICING INFORMATION MOTOROLA MODELS MOTOROLA 94MF, 94MFM FORD B9FA-18806-C, B9FA-18805-E ANT G C G G VC OX 3.3X 70X 40X .125V 400 CYCLES AT GR10 OF 12AE6A 1000 KC 1000 KC 1000 KC TO 262.3 KC 262:5 KC TO 400 CYCLES FOR ONE WATT OUTPUT laGfi 12AD6 128L6 12AE

2、6A 2N573 MN-29 RE AMP CONV IF AMP OFT AVC-AF AMP DRIVER PWR AMP ALIGNMENT POINT LOCATION DETAIL PLATED CIRCUIT COMPONENT REPLACEMENT Most of the components can be removed from the panel with the aid of a soldering iron. When using a soldering pot, it may be difficult to dip some of the components cl

3、ose to the edge of the panel because of interference from the radio housing. To use a soldering pot on these components, it will be necessary to partially drop the panel from the hous ing, to do this proceed as follows: a. Remove two screws which hold radiohousing to front plate (on volume control s

4、ide of housing). b. Unsolder connecting lead from antenna, spark choke at trimmer side. c. Unsolder plated panel support bracket from housing and panel, bend ears straight, and carefully remove from plated panel. d. Carefully remove plated panel from housing and drop below edge of housing. NOTE; Do

5、not perform steps 3, 4, proceeding with step 3, back tuning cores 1-3/8 e. Replace screws removed from housing in step Ha. M so panel and housing will be more solid during soldering op eration. PLATED CHASSIS REMOVAL - If necessary to re- move the plated panel completely from radio housing, pro ceed

6、 as follows: a. Remove two screws whichhold radiohousing to front plate (on volume control side of housing). b. Unsolder connecting leads to free panel. Where pos sible, avoid unsoldering leads at plated panel. c. Unsolder plated panel support bracket from housing and panel, bend ears straight, and

7、carefully remove bracket from panel and housing. d. Plated panel will now be free for careful removal from housing. 5 & 6 unless tuner has been tampered with or components have been replaced. Before out of tuning coils to eliminate their effect on trimmer adjustment. 70 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN