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

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1、MANUAL OF 1948 MOST-OFTEN-NEEDED RADIO DIAGRAMS Motorola Model CT6 for Chevrolet (Many other Motorola Auto Sets for other cars are similar in some respects). C-25 R-19 C-22 R-12 RH5 020 021 R-13 l|/ rv .*/ “li p*jy ii 0j$! s ;h A. i! . .fbX 4 P I *”* / | TONE CONTROL RELAY OPERATED BY PUSHING VOLUME

2、 CONTROL KNOB f i onvol.contT l-s w L-6 S.P-t 0-13_ tel j rp 1 notes:-all Resistors are indicated IN OHMS. i 1 J I K* ONE THOUSAND (1000) OHMS. * MUTE SWITCH,ACTUATED BY CARRIAGE. SWITCH S-3 (ON TUNER) IS ACTUATED BY CARRIAGE PLATE mc=i-a c=c 5 ?- RECEPT A* LEAD ASSEMBLY TO WHEN ELECTRICALLY TUNED.

3、*M“eTER C-22 CHANGEO TO .1 ME IN LATE MODELS. 收音机爱 好者资料库 RadioFans.CN _J I- “Sot -p to D rH O iI i( H O T) bO pcj as xl a 00 -P $3 3 U O J O M O as t-i H CO P O EH ?S P-l O g O (D -PH si O D O S tJ to o 114 lignnent- frequencies.use gauge (Motorola Part No. 86A76826) 收音机爱 好者资料库 RadioFans.CN MANUAL O

4、F 1948 MOST-OFTEN-NEEDED RADIO DIAGRAMS MOTOROLA Model GT6 for Chevrolet (See alsopages 113, 114) For alignment refer to chart on*page 114, and trimmer location diagrams below. Use special tool, Motorola part No. 66A76278, for adjusting tuner cores. A small screwdriver will do for I.P. and R.P. alig

5、nment. Use dummy antenna as described on page 114. A low range output meter is required. Adjustment points shown below will be exposed after front and rear covers are removed. Allow receiver to warm up, press M button to place automatic tuner in manual tuning position. Volume con trol at maximum, to

6、ne control to voice position (high position). Pointer and Drive Cord Replacement Remove (1) the front cover, (2) the dial background, and (3) push-button assembly. Four screws hold it in position. Do not unsolder LUS any wire leads, just lay rL(oxotl the push-button assembly - on top of the set. The

7、 - pointer and drive cords are now fully exposed. (MOTOROLA PART N. 29R3386) POINTER CORO TENSION SPRING POINTER CORO / USE 18 LB. TEST / FISHLINE /(MOTOROLA PART N.11M8944) MANUAL LEAO SCREW STOP ON TUNER. AT EXTREME LOW FREQU ENCY END. ANT. COM. TltlM. 1600KC ANT. RECEPT REAR OF SET DIAL RATIO Pul

8、ley* ( (SMALL) R-F COIL TR|MMER(6J 1600 KC. OSC COIL TR|MMER(5 1600KC. 1) i-f (2J TRANSS 455 KC. ?: (T-2) DIODE | TRANS 455KC ORIVE CORO TENSION SPRING SPRING V 111111111111111111111110= Dial ratio pulley (LARGE) POINTER CORD TENSION SPRING T2|3 COIL CORE 1425KC X ANT. (COIL COREl V.1425KC. OSC. COIL CORE 1425KC. RIGHT SIDE OF SET FRONT OF SET 收音机爱 好者资料库 RadioFans.CN