Motorola 107F31 Schematic

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Product Information:
Model:107F31
Manufacturer:Motorola (Galvin)
Description:HS-87

Schematics Content:

Please note: this content is a computer-generated interpretation of the above schematic and is provided only to help assist you in locating this schematic. For the actual text, please consult the schematic above. Thank you.

Page 1:

M T ROLA PAGE 19-123
MOTOROLA INC. NODEL 107F'31,
CHASSIS HS-87;
Ti yi Early
IW " ?t? ff iii In
(C)John F. Rider

Page 2:

CLARI 7' SKEMATIX
PAGE 19-124. MOTOROLA new =~>>f arf-?~-~ __ _
MODEL 1o7F31, _ _ MOTOROLA INC.
CHASSIS Hs-87
6 John F. Rider

Page 3:

MOTOROLA PAGE 19 125
MOTOROLA INC. MODEL 1071731 ,
CHASSIS HS 87
(C) John F. Rider

Page 4:

PAGE 19-126 MOTOROLA Ruilkred Trdelwll
MODEL 107F3l, MOTOROLA INC.
CHASSIS HS-3?
9 John F. Rider

Page 5:

MOTOROLA PAGE 19-127
MODELS 107F31, MOTOROLA INC. MODEL E..3b__T
1O"[F3]_B , CHASSIS
I FIGURE 17. MODEL E-34-T AM~FM TUNER
THEORY OF THE FH TUNER
Referring to the functional schematic diagram
in Figure 18, the trlode T1 serves both as an osc-
illator and first converter, and tr1odeT2 serves
as the second converter. Oscillator voltage in-
Jection for the second converter is obtained through
.the coupling capacitor from the plate of Tl. T1
and T2 are sections of the 'IFB twin-triode tube.
The frequency relationships are glven in Fig-
ure 1B. The oscillator FO beats with the incoming
signal FS to produce the first Intermediate fre-
quency Fl, which is variable. F1 then beats with
the same oscillator frequency F0 in the second con-
verter to produce the second intermediate frequency
P which is 4.3 mc. with a 100 mc signal the osc-
1?lator frequency is 47.85 mc and the variable in-
medlate frequency is 52.15 mc.
This system of reception permits the oscilla-
tor to be resonated with a high capacitance, 250
mlcromicrofarads in this case. Consequently,
changes in the tube characteristics during warm-up
do not produce objectionable changes ln oscillator
frequency. This contributes materially to the sta-
b111I>>Y of the system.
The actual FM tuner schematic is shown in
Figure 20.
mr... ___ __ I EUR
3" mom szmne : swm"
FIGURE 18. FUNCTIONAL SCHEMATIC DIAGRAM OF FM TUNER
(C)John F. Rider

Page 6:

PAGE 19-128 MOTOROLA
Model E-314.-T MOTOROLA INC. -MODELS 107331,
(C)John F. Rider

Page 7:

MOTOROLA PAGE 19 I f
10'/F31B , CHASSIS
PART N0
PARTS L IST
WDEL E 3U-T AM-FM TUNER
DESCRIPTION
Spec 181 1 3 mmf
Silver mica 260 mmf
Variable ceramic '7-45 .....
Variable Ceramic 5 25 mm
Ceramic 18 mmf
Variable ceramic 7 45 llllfl
Mica 500 mmf 500V
Variable 5 gng
Silver mica 250 mf
l 5 mg 1/ZW Ins
RDS. C16 threaded >>>>>>
Lockwasher fe internal
Nut e-ez x 1/4 hex
Mamet Assembly 8 electromgnets
mount/ed gn channel. with terminal striv
Strip, terminal 8 insulated lugs ll
and 10 mrg
Rzver. 122 x 5/sa steel
mgnet Assembly single electrcmgnet
Bumper, arnature rubber ...
washer 7/161 l6'7x G5 thick
Nut: 10-52 X 5/8 DEX .. ....... .. .-N..
Grommet: for 7/16' hole ................
Lockscrew: S-52 x 1/4 SIOCCEG hex head .
Washer, 'C' spring .....................
Rod, stop: grooved . ....... ....
Motor, tuner . ......... ...... .......
Nut: hex; .594 long' 6-IN! thread (motor
Screws: S-32 x 7/B slotted hex head
mchlne screw ....... .... .... . ._ ..
Lockwesher: I8 internal ........... . ..
Lpckscr w: 6-32 I 1/4 slotted hex head .
Washer clutch) ...... .......... .....
vasner, spring (clutch) .. . ....... .. ..
Gear A Hub Assembly' 1-5/B P.D. ..... ._
Spring, cushion .......... . ........... .-
Screw: Br-52 x 1/4 slotted hex head
mchlne screw ........ . ....
Bushing, Clutch r'ete.1n1nEUR ......~.......
Bushlng, spacer
Washer
Yoke, retainer .........................
Yoke. cam
Eyelet 155 x .268 ........ ........
Screw, yoke lock
Pin drive Shaft .
Grommet. tuner mounting
Eyelet. mounting ..
Rack, drlve gear ale cast .
Plate, core mounting: bakellte ..-
Screw 6 52 X 1/2 slotted Hat head
mchlne s crew
Lockwasher #6 split
Nut 5 R X 1/4 Del ...~.??>> .nn ...N
NUT., Swivel
Clip, swivel nut
Plaia, fI'0nL m0Unt1ng: Bakelite . nu
Screw 8 52 X 5/8 Slotted l'0\|nd head
mchlne screw
Rod guide .......~. ...N ~.........
Split Gear L Bushing Assembly (large)
Bpllt Gear A B\l5h1l'15 Assembly (ennll)
Screw 6 R x 3/10 slotted binder head
machine screw
Lockwasher is external . ........
Spring. core tension
Core, Iron (ant. avar. IF) ..
Core, Iron (with paint dot) (csc)
Rear mounting Plate L Lug Assembly:
bakellte plate with soldering lug .....
Lug, soldering ................. ........
IHGUCLOF. VHF (Ant.): 2-l/2' long ......
Inductor, VHF (IF): 2-5/4' long ........
Inductor. VHF (Osc): 2-5/6* long .......
Bracket, trilmner mounting ..............
Lockwasher: #4 split ......... ........ . .
Screw: 4-40 x 5/16 slotted round head
machine screw .............. ......... . _
Bracket, trlmner mounting ............. .
Screw: 44 x 5/16 PKZ slotted round head
sheet metal screw ...................._
Washer, trimmer: fibre .................
Screw: 5-48 X 5/B slotted f1111$?EUR1' head
machine screw ........................ .
Screw: 5-4B x 5/le slotted tilllster head
macnlne screw .........................
Str1D. terminal: 1 insulated lug' [1
Receptacle, rerrule: 1 prong ...........
Cover, tuner (rear) ....................
Screw: Q4 x 3/16 PKZ slotted hex head
sheet metal screw .....................
Plnlon: gang drive .....................
MODELS 10'/F31, MOTOROLA INC. MODEL E..3L'_-
47 4174956 washer, spring
(C)John F. Rider

Page 8:

MOTOROLA PAGE 19-115
MOTGROLA mc. Momma 1o7F31,
1o7F31B, CHASSIS
(C) John F. Rider

Page 9:

PAGE 19-116 MOTOROLA
MODELS lOYl*'3l,
lO7F3lB, CHASSIS
FIGURE 14. PARTS LOCATION - CHASSIS HS-87,
ELECTRICAL PAR
BOTTOM VIEW
(C) John F. Rider

Page 10:

MOTOROLA
NICAL PARTS
BOTTOM VIEW
PAH
FIG
(C) John F. Rider

Page 11:

PAGE 19-118 MOTOROLA
M CONVERTER
= THE POINT.
MEASUREMENTS MAY VARY DUE TO
VOLTAGE
(C)John F. Rider

Page 12:

MOTOROLA PAGE 19-119
MOTOROLA INC. MODELS 1071931 ,
ec-2 z1411m41 Sliver mee: 250 nr . ...... "'" ?"??1? 55? """ ~~
_c_,, zormuo .m_"_ Cerum .Ha mf 0-11 101114091 vnum Control: 1 neg: apnea at 000.000
C4 mme ,Wm _us I: 400 ., 0-10 000040 1 neg 105 .......... . .............
0-11 some nw: .os 01' 4oov P20 WVWS 1" 1% 1"
C_u seam hw., _ol I, wo., 0-as 016410 50.000 100 .... ..... _ ........... .
C45 some mm.: _os ,, may 0-as GR-6301 1000 ....... .............
Cds $9315 hp", _C5 -f may ___ ll-B4 IBAZUJGE Tone Control: 1 ug: lnnludes Phono-
C40 MM," mc.: sm -, sow 0-21 000220 000.000 . ......
C'~21 21M&B men: 1000 mr sow "'" ?'"??" "'>??? 'W 5" "-L ?~
8_2 ww* mm _om _r ww n-za enema 22.000 .......... ..
c-es mom Paper: .01 nr s00v .... ................ 0-05 000054 10.000
C'?7 mom super: .01 nr som ....... ..... . ........ 0 -04 sum 41.000
c-00 $0010 Paper: .m nr 5001 .... .. 0-51 ensam :soo Ill 111
| c-5 204152.54 11-1ner. uw 10-00 -r; nun ug Drucker. lnrclls
C47 00411141 hlnsr, nm: 10-00 -r . .............. 0-2 1x15020 msnnungan eumn: 0 nunonz nun mtl!!
C-53 zmvlzzg Trlgr, llcs: 2-12 nr; include |1ng` "||,,m.u>>'3 swlnch (cvlvlaw) ..... -. .... .........-
nnqnz; pre or mop snrenm . ....... 'r-1 04015401 1:1 xr. 4.0 rm: wnmeu nun lron cares
c-40 $0000 Piper: .1 01 zwv ....... 1'-2 240-1541.5 ana xr. 4.0 ne: complete nun mm mms
C-41 $9339 Pntrz .01 lf 400V .... ... am padding cmnnnlrura, nur leg; gmem
c~4-0 SUQG Flnsr: .112 nr 400V ...... cores 0:10 p0aa1ng'cnpqc1cars, nur xess
C-M S9824 Plnen .02 ll' AOUV ............... ..... shield ........................ .... ....
C-46 $0001 Paper: .01 nr 1001 ......... ...... . ..... 1* -4 24875487 Ir. 456 nn: cumnlete nun lron enree 0:0
BC-46 BOMBM frlir, lien: 10-H) lf: llth In Unch: pnadlng csnnclnors. bu: less shield ...
C47 234711 ceruxe: .se ur ...... ........... . ..... 1* -5 24011112 mme. 455 ne: complete nm lron cares
.c-40 moms P00011 .05 lf 4o0v .... .. ....... ,M ,m?`,;? samlm,-S_ but lm Smell,
0-50 25l'7'756 Elnectrolytlcz 10 nt 1007 1-1 25010400 Pour ........... . ........... ..... `
(3-61 214112241 Silver nm: 50 lr - ~~'-- 1*-0 24877710 nr armacssn: ennmeze nun xrnn cores nun
loss snxela . .... ........... ......,... _
PHO! LMI!! IISCEIJANEOUS CHASIS PARTS
1-1. 2 1 1X'7l?l smcrev.. enneen ng: Includes rubber
|8 ?|1l?| Bulk 8.31 .lil LDDIIIAI' BYOIIQE DISCS 8172!-S lf!! QYGIELS .......~.......~.
1.-1 84A7|US mn. rumen: ...... 4 80521859 Cora. 110| em mum 2 conductor. run-
1.-s PAAWABD smrweve oeexluwr . .... .. 5 15014025 Cover. tuner .... .... .... .......... _ .
1.-5 117526 rn loop munm: urn lam nly: me 11101 =es1e. runner ?n.me1
1.-0 24l47&)\4 00 mnp mmenm ....... strips em voxnzer ...... ..... .
1104 ----------~------------~-- ----~~~ 9 57A|1&5 urumn. runner (suner vover 01:1
10 3'/K151-25 aramec. mununs: runner (amen
lou: All nllnors Ars 1/ZH 20| imuuud clrnon type unless 0u1u~ smemmu 7| long _ ___________ __
|186 IDWXUIG- 12 1X7&5B usa Assembly: single conductor;
4-1 002100 10 ng ...... .. shielded e' lnng ............... . .... ..
A-2 M6015 16,000 1H )l.l. .. 15 H70369 use Assembly: single conductor; shltldedl
'G-G QQ; 1.5 _I .. ?....--.. 14 11470488 leld I Plu? Asselhly (nhnno pickup con-
I 0-0 man 2.000 15 xv 0. 1, 15 117750 ueae 1 man rmar necepuue mer
l-'I 06716 B0.&D .4 .... ..... 10 HT7732 lands L Sneaker Rzcencacle Assennly ....
0-0 50500 $0.000 lf# 10 17 3&24B15 wax. line corn: r1:>re .............
e Psrt nr 0-04-1* Tuner
(C)J0h1'l F. Rider

Page 13:

PAGE 19-120 MOTOROLA
MODELS 1071331 , MOTOROLA INC.
lO'YF31B, CHASSIS
19 as-rom nur.: 3/9452 x 1/z mx; 114-1111 puma 120 121-/sees C1 1p. pp\mr1r\g qpnono connector nm ..
20 287061 Nw S/9-2 1 9/1? PHIHW ?mlN' DU' 122 3511171712 cxotn. ga-111e: norm (1o'n=31B) .......
21 0112706 P1W=~ ?1??f\'?1?=1? ?lD??"?f` "IG 124 111175551 mmreon. o1ne1 rorrn pun wmm
ea zamms 1>1\:a)11->>\111r.?1= 1 pm (pn Phono mmp 125 1311-/o4a1 sscuncmon. push ourronz Drmm p111r1?;
B4 1x-/asus Pulley usuuxyz wp 1-s/w puma; on 501.1 stripes (107518)
rms uuanmg 127 13878158 or111e, rahlnvtl nrusnea brass rxnxsn ..
as l9A59d) runny. core: 1/4 groove 12a 55K4'715% Hlnge, door 1un1vers11>= onrmry bronze
Ze 49121741 Pnllay, cord: 3/B yoovn ............... ilnlih (comnnrtment door - 1L7IF31) ....
27 49121552 Pulley, cord: 1/2 groove ............... $29 55K47\692 Hinge, :nor (Universal): brass (compart-
25 9150550 Mesvncle: 5 wrong (phono motor recent) nent Jvor - 10'7F31B) ..................
2. ann, ,,?,m,,,,_ , ,mu (M mo, "L_ Nnprp 130 ssurveus nmgo. radio aroryrxgm nom; stprmry
so umm 1meor1=1?= s bronx (annular recnnrb bronze rinxsn 110'/mx)
31 5171241 mvrr. snoaxau-1 .1e-1 =r1<>u1a?r (com :sz 55K'7515O uxnoe. radio door: left mm; smmrv
pulley mtg) ......................... bronze r1nxsh(1D'IP.51)
sz sx-11510 Rlvnt. shoumcr: .512 shoulder (com 1:12 55111145 Hlnm. raam door: rmgnr nam; or-151
puny ma uovrum
as uc-mm seue. am: gms 13:1 sax-/11411 nmge, 1-mo upon mv. mm; or-151
sa ssvsoe scrum: is x 1/4 PIE 911111 ne: nun amen (107F31B]
mul screw; canllm Dllted (BC nec. 154 14175142 Insulator. F14 loop mounting ......
can nr; nm sw ou. 1111 -rg) 155 14A7S554 Insulator. um; more
|1111 111-ew: 11411111 onus (ssneru 137 .,36K70511 moo, comm: p11Sr1?; pm"
-m1nr.11-11; me ZMK70513 mon. rpnnron p1asr1?; urn rea op;
so ssnoo aurora: e-<12 x 5/xe suomm; ue-111| 1:o 4sv?av Lo?\v:1=n?r= 1a exterml: r?o|1um plated
sv S7461 som: as x :s/4 rxz ammo mx 1111.1 110 2572610 mr. ree: e-<12 rnrem (pmsszs my
so 1171069 sumo 1 Iron can suave unmly (rar 142 zsvozz mr: 1/4-zo 1 v/11 ner; ?1ar11\m pmeo
C1 111-rr/47 scent. 4111 11111: 144 ssnmvme ha, rem 11 1/2 r 1/5
48 i|A'71661 sonar. ww 1111111111 -1 prone 1-s/1e us 35K78174 na, Ullle rcompprmnr mor; .
lountlnl centers 145 Ssnvexn Pia. grille (speaker panel)
45 enema smut. won: wma, xpem 117 64C4'IU)78 ram, rem-a clnnger p.,1r<,..\ pm,
'~=44 e11'r1o15 smut. tubs: nur; 1o<:n1 11a zaxxsefu Plug 4 p1n (sc mop ?or1r1e?r?r>
I6 9110115 spun. rum wmua. pcm; 511151481 tyoe um" nr; screw ` H
lat bmp. '
49 $721114 Serin? omni;-11 hmner; 1- nm; (dizl X52 3513" sm" 'Z ' 5/5 """U?? ml MUG H006
50 8327078 Strip. slltt bearing MDN ............ 153 _ ':?-~~-~---~~~----~--4>>~
51 S1A15?55 srr1p. m-|111-1. 1 urn 11111111141 nm, sam' S333 _ ':!_;;/?;';Z;"?Lf;?; N20 'vw
Dine ntl) ..........
52 suusoee smp. m-|11-111: lmulakd lug gz -r; W wml _
s'z 91114909 Ham. 1n1n1nt1w rum (lnsuutu ws sms" Sc 1 >
?1>>rv,ro1yr1? p1p1?1ror rr-an -rg r1v1r.1> "?"'/5 1 5/4 =1?"?51 fl" head wood
60 5011506 uuxur. cuwrlsalonz sponp rubber ..... girel. sutuary oronn finish (11610 door
CABINET PARTS ~ IIDELS l0'I\'-'31 5 10'IF31B 157 532365 km? "U ;~;:-;;;;;a-;--su-----...
screw: mnxum mum <?m;>>111 up
1m 1911471151 mock. xanax nmmtln: nom loo zsvoso Sxaeodnut: for :s/11 ?111mr1r'r;?'2;1;""
101 v1-/rns hmm. 111- emu nm cmci rm ror.11n>>r1
15 'rrnmo sr-nent. loco manor: lex 41A'11'n? sprinz. enusu 111111 ?
106 'ru-ans armmr. phone rm: 112 MA72780 sprum. rpm rrrxwr) _
107 1111154 mont. pun: um 15 1114v1141 sprmz. ammo rm.: 1?ur1nz
mos &BM71759 mumng; :meer (phono 111111 annum.; |114 41m51s Snrxng, ropporr-upper (recom emrrgrrm
100 'IA471756 lfwht, svriu anchor ..... .... X66 GIKVEUXG Svrlnz. support-lonr (rocom cllnpr
110 7A'717& Bricht, tilt nunl spring ............ cushion) .......,,.,_,___________
111 451471745 super, runner me eau'/me stop, uvu-= umm; 5/p mu
112 u1'noo1 sumo 1 spruu u1m1y= nxnur push- :ev ssmsoe an-111, bllllftt 1p?1m-1 om up. mi"
button 111:11 uanrr sm-in: (1o'/nn ..._ tea snnvlss strxp, ron.: 0-3/u I \ I 1/G N
118 uvesa c1r,?n unnnu (mul umm we 4sveeo when 1/1 1 5/1, 1 M, mm ?','_,',??;
11a azneno cmv, cum (na moo mg. un 1 14111 wa can umrr 1 x 5/14 1 css :oxen w1n1\:'
(C)John F. Rider

Page 14:

pu Loop Nv Yin Us
,mf < sr unc ?r AMP zuomsuc ns wx
. A scum : :w I Nl T E .1 3 Y "
I/ use as wr ' | | ?~,
I1 1 1 3 Pcsmou swam
. Ill REOIPY, _ I
' ? "??' mn wean ? 1 . 1
LYZ 1 nun f___
" ' 1 5.3? I C-32 can
sw osc can 54 J-29 T
1 ' IMF
1 cm; can con; uc oss ? 7 'X'
|` FIGURE 20 . SCHEMATIC
(C)John F. Rider

Page 15:

JMOTOEOLA PAGE Q 121 122
" MOTOROLA INC,
MODELS lO'ZF31, 107B 3113,
CHASSIS HS-37
1-3 ' 025 Y new smu-una
:_ vow; moo uw * g 0* HF GVSGT
__ moo woo G pw, Ompuf
-: an CONT
_ _ -_=..~'_->>~->>>>-' ,, 150 ? 25V your gem
. - nun ~. sm114n>>o
, oonvsmsn , | . user
5,3 = _X, C45 Q I aww T0 ALL
E30 , , vs; Areas 0
SCHEMATIC DIAGRAM -CHASSIS HS-87

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