Motorola 309 Schematic

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Product Information:
Model:309
Manufacturer:Motorola (Galvin)

Schematics Content:

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Page 1:

;,; :Ez ?17 Iggy 1-,H
va f ----- ~~~ lp. are -.'"

Page 2:

MOTOROLA PAGE 20- T07
'\ _ q ` ~ 8_2 non ve _ _ .m -'- can
FIGURE 2. PARTS LOCATIONS '
Connect a low range output meter across speaker No. 66A76278, is required for adjusting the tuner
voice coil and set volume control at maximum. For cores. IMPORTANT: [lo not push in on the align~
greatest accuracy, keep output of receiver at ap- ment teal when adgusting the tuner cores; the _
proximately 1 watt (1 watt : 1.79 volts on output slightest inward pressure may move tuner carriage
meter) tlxroughcrut alignment by reducing signal gen- and result in inaccurate alignment. Remove re-
erator output as stages are brought into alignment. ceiver top and bottom covers and the escutchecn and _
Use a small fibre screwdriver when aligning IF and dial seals assembly tc. expose all' adjustments,
/` diode transformers. A special toul, Motorola Part '
UJNMY (ENH'lA"l`CH G-H'lEBA'IUl TUNER
STEP ANTENNA (DINHIYIUW FREQUENCY SET 'IO ADJUST HHVIAHKS
1. .1 mf GSA7 Grid (pin 455 Kc High frequency l, 2 Peak for maximum in order indicated.
#8) end (cores out) 3 & 4 Check by repeating procedure.
2. see rig. Antenna recep- 1605 Kc High frequency 5, 6 Peak for maximum in order mmneatea.
3 V taele through end; some zz. 1
ahmmy. should project
_ 1>>l/4" from
3. " " 1300 Kc 1300 he per B, 9 "
4. " " 600 Kc Tune for - Replace dial scale & set pointer to
maximum. 600 Kc by means of pointer adjustment
5. With receiver installed in car, the antenna fully extended and dial set to approximately 1400 Kc, adjust an-
tenna trirrmer (7) for maximum volume of a weak station or noise between stations.
? John F. Rider

Page 3:

PAGE 20-'I08 MOTOROLA V
MODEL 309
PLUG ro F11 Rscsvvsn IX ,gms
T0 "LUG I "HST Q nr TRANS
(C)Y SVGGT 0 TOP
FIGURE 3- DUMMY ANTENNA `A' _ 1
ANT 'mm _ , LEAD
*sos Kc ' ; -moms TRANS
RF 00115 QJHY :IP " o? POINTER ADJ, I VOLUME
'50? KC . Fnom or crmssls ; TUNWG | SCREW 11111 5
FIGURE II- TUBE R TRIMMER LOCATIONS
NO. PART NO. DESCRIPTION !\0. PART NO. DESCRIPTION
CHASSIS PARTS - ELECTRICAL SPEAKER
c-1 21KB7136 cernm1e= zoo mmf soov 508590079 5P"?""- 5'1/4"' 3-2 ?*""
C-4 a1<14791 Paper; .05 mf 400V .... None: All resistors are carbon insulated type
C-5 8K472035 Paper: .1 mf 100V ...... unless enherwree specified.
C-10 8K13514 Paper: .05 mf 100V ....,... 11.7 113114115612 Volume Cenrrol: .5 meg; U..
C-11 31117020 Paper: ,5 mf 100V _.,...... Cludes f,n_?ff Switch
C-13 01021140 Peper? .006 mf 1600v _,.... 5_9 556122 4_7 meg 20% 1/211 ____,___ du,
350-350-25V ---~-~->>~-~~~~ Bela 6116406 22 10% 1/zw ........_._,. doz.
FUSE SPAM( PLATE
F-1 65>>\10266 FuSe= 10 amp ~~~~-~ -->>-~>> ~ - SP-1 lA~1B56()6 Spark Plate Assembly .,....
VIBRA TUB V _ TRANSFORMERS
G-1 4883333 Vxbrabor: 4-pm; HDD-SYNC-~ T-1,2 21B485553- IF and Diude: 455 Kc; complete
T-3 25C405a30 Pnwer Transformer ......
DIAL LIG/T T-4 25370171 Ounpun Transformer .,,. .
'>@Y?"?' base# 144 -~~>>~--~ CHASSIS PARTS - 14500111011
L-1 248580570 Coil, Antenna ,, ..... ...... 1 42A4R5548 Clrp, coal can meg (T-1 <17 T-2
L-3 2485110569 Coil, oscillator ...,...... 2 42/A4215 Clip, vlbreenr gronndrng .,doz.
L-4 24K5s0706 Choke, RF ...,,..,_,.,..... 3 91114906 [nsuIator, electrolytic meg;
?J?>1m F. Rider

Page 4:

MOTOROLA PAGE 20-1109
MODEL 309'
No. mar No. DESCRIPTION ' PM "?' V DESCMPTION
4 9K580705 me fm- complete Jim 10 101 11680162 C-rri-ge Plate Assembly: in-
amP'f"'e ? cludes bakelite core insu-
lator&s1ider spring ....
5 487666 Lg??w;?h;;;w::t;r??; ;:;; _per/C 102 46K489214 Core, iron and screw (specify I
cad pl (dial light mtg)...per/c , r1"5 "1 ""'?"' "'
7 2A78005 Nut' floating: with ear (on 103 42A70lB4 Clip,_core adjustment ..... don
tuning shaft) _________ ____ 104 SK580503 Grommet, rubber (ant & RF cgil
B M77596 N I H - , - h mtg ..................... oz.
9 257005 Nut; h?x, 6_32 X 1/4; Stl: coil mtg) ........... :....doz
and P1 (Power "an, ,,,tg)__p"/C 106 MA485602 Insulator, core: bakelite;
cad pl (vol Cunt mtg) ___d?'_ 107 558497 Rivet: .088 x 1/B, stl; nkl
11 1X580165 Plate and Stud Assembly nl <==rm1n=1 "HP md =11d=r
(Pointe, adj plate) ______ mtg) ..................... per/c
12 lxssolsa Pointer and Drive Plate 109 557770 "1"?== -088 X 5/321 "H
Assembly ................. "ki P1 iw" \"S"1???f Illwb"/C
Receptacle, antenna contact
pl (dial light mtg) ...... per/c
pl (tube socket mtg) .....per/c
pl (vibrator socket, output
trans and spark plate assem
pl (electrolytic wafer
slotted binder head; stl;
cad pl (pointer plate mtg
and pointer adjustment
Screw, sheet metal: #8 x l/4;
plain hex head; stl; cad pl
Shaft, drive (tuning shaft)
Shield, light .............
Socket, dial light: includes
mtg bracket ..............
Socket, tube: octal .......
Socket, tube: 4 prong (for
Spring, compression (tuning
Spring, torsion (pointer
Stud, drive plate mtg ..... doz.
Stud, pointer mtg ......... doz.
Wafer, electrolytic mtg:
Washer,'C'(drive shaft re-
HOUSING PARTS
Shield, coil ..... .......
Spring, core ..... ..,.... p er/cl
Spring, slider ............ doz.
Strip, terminal: 2 insulated
lugs, #2 mtg ..... . .... ... I
Washer, core insulator: 1/4
Bracket, receiver mtg (on I
bracket, receiver mtg (on
rear of housing shell) .... '
Cover, bottom: less speaker
Cover, top ................
Escutcheon & Bracket Assembly
Frame, dial scale retainer.
Knob, control .............
Speednut (dial scale mtg) .doz.
pl (receiver rear bracket
Scale, dial: glass ........
Screw, sheet metal: #8 x l/4;
slotted acorn head; antique,
copper finish (housing screws
and escutcheon mtg) ...... doz.
I/DUNTING PARTS AND ACCESSORIES
Bracket'and Stud Assembly (re-
f~BiI\=1') - - - ~ 4 - - - - . - 1 ~ ~ - - - -dvi. 302 854491 Capacitor, noise suppression
32 4K70015 Washer, 'C' (pointer mtg and (ggngg-ago; (mp) _ _ , _ _ _ _ , , _
33 45488235 Washer, flllli 3/3 X 3/32 " stl; cad pl (receiver mtg)doz.
-010 (C)hi?k: ==l: Cad l>1 304 ZS7022 Nut, hex: 1/4-20 X 7/le; stl;
(P?i\'1??l` Phu MB) ~~--~~5?l- cad pl (receiver mt ) .,..doz.
34 451719 washer, flat: 3/8 x 9/64 x 305 358109 Screw, sheet metal: as x 3/B;
1 1130 ?l'11Cl\} SCI; Wd P1 PKZ; slotted acorn head; stl;
(P?1"f-N' mtg) . . . 1. . . - - ~ - ~P?l"/? cad pl (receiver mtg to ine
play wakeup),-~--~~-1-~_~~d?1- 306 SS7295 Screw, machine: 1/4-20 x 3/4;
1 36 39/\2606B Wiper, grounding: spring brass Phi,-, hex head, at); ,md P1
(51'?\-\';d-S CNHI' W WP d (receiver mtg to receiver mtg
| TUNER PARTS MEcllAn|cAl_ Pm" hex bud; sm gd P, '
Note: Coils and trinsners are 'includes the ("??"?r mtg 7? E" flrewa?y
' Electrical Chassis Parts list. ive 308 '2A485.[18 st" . '
. . p, receiver mtg,
?:;f?c?::?s",??r;??,2?';?d "' "}'? M??l"'"` soo 6A4141 suppreuor, noise (distributor)
(C)John F. Rider

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