Galvin-Mfg-Co（Motorola）-2F21B 电路原理图.pdf

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1、VOLUME R-18, MOST-OFTEN-NEEDED 1958 RADIO SERVICING INFORMATION MOTOROLA L f J u R5 C2 C4 R6 R1 l l 1 (Hot 11 1 all Mod: : CHASSIS HS-598 31 *! _l PARTS LOCATION r DIAC 63D637585-A | k Capacitors - decimal values In MF all others in MMF unless otherwise specified. Voltages measured from point indica

2、ted to B with a VTVM. X INPUT CIRCUIT “ IN SOME SETS SPEAKER PHASING NOTE: THE SPEAKERS MUST BE PHASED OR A LOSS OF THE LOW FREQUENCIES WILL RESULT Phasing can be checked by momentarily connecting a 1-1/2 volt flashlight cell in parallel with the output trans former secondary and noting that the con

3、es of all speakers move in the same direction. If they do not, reverse the connections of one speaker. DISASSEMBLY INSTRUCTIONS To Remove Chassis from Cabinet 1. Pull off two knobs from front of cabinet. 2. Remove four (4) phono mounting board and two (2) baffle retainer screws. 3. Lift rear of phono mounting board slightly and slide out. 4. Remove two screws which hold chassis to mounting board and remove chassis. To Remove Turntable 1. Remove C washer from spindle. 2. Remove turntable by pulling up - off of spindle. 106 收音机爱 好者资料库 RadioFans.CN