Affiliated Retailers, Inc. AR-252MU Schematic

Get a print!
Price: $8.00
In stock
Product Information:
Model:AR-252MU
Manufacturer:Affiliated Retailers, Inc. (Artone)

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:

AFFILIATED RETAILERS PAGE 21-1

MODELS AR-ZEOMU AR--ZSlBU,J AR-ZSZMU,

tif-""9"" DESCRIPTION (mm)
TYPE: Eight-tube, two-band, superheterodyne. TUBE COMPLEMENTZ
FREQUENCY RANGE: Standard Broadcast Band; Type Function

540 to 1620 kc, (Selector Switch at middle position).
GBAG R. F. Amplifier (AM & FM)

Frequency Modulation Band; 88 to 108 megacycles
(Selector Switch to right). 12AT7 Oscillator & Mixer (FM)

INTERMEDIATE FREQUENCY: Standard Broad- 6BA6 l. F, Amplifier (AM 8: FM)
cast Band; 455 kc.

6BA6 2nd l. F. Amplifier (FM)

Frequency Modulation Band; 10.7 mc.

GTB Ratio Detector (FM)
FM ANTENNA INPUT IMPEDANCE:- 75 ohms Diode Det. Ki AVC (AM)
balanced. Audio Amp. (AM & FM)
POWER SUPPLY: a. c. only. GBEG Converter (AM)
VOLTAGE RATING: 105-125 volts. 7A5 Audio Output

POWER CONSUMPTION: 60 watts at 117 volt 5Y3GT Rectifier
'power supply; 20 watts additional for record changer.

POWER OUTPUT: 3.2 watts maximum. DIAL BULBzType 47, 6.3 volts, .15 amp,
ALIGNMENT PROCEDURE

This receiver has been aligned at the factory for best performance and no attempt should be made to realign

it unless the proper test equipment is available.

l. Turn the tuning condenser to full mesh,against stop, and set the dial pointer to line up with the right hand
vertical portion of the "M" in "AM" and "FM", located to the left of 55 on the dial.

2. Set the tone control knob to the full treble position (extreme right).

For Amplitude Modulated signal readings, connect output meter across voice coil (3.2 ohms).
4. All Amplitude Modulated input signals are modulated 30% at 400 cycles with the High side of the signal

generator connected to receiver as indicated in the alignment chart. Connect the low side of signal

generator to the receiver chassis.
5. All Frequence Modulated signals are modulated 30% at 400 cycles. 30% modulation is equal to a de-

viation of 22.5 kilocycles. Connect the Frequence Modulated signal generator as indicated in the align-

(C)John F. Rider

Page 2:

PAGE 21-2 AFFILIATED RETAILERS

MODELS AR-QSOMU, AR-ZSlBU,
6. Turn the volume control to maximum Clockwise position and adjust signal generator output to produce
a noticeable output meter reading, Keep signal generator output as low as possible to prevent AVC

action in the receiver.
7. For F. M. alignment, the loop antenna must remam connected, or a suitable dummy antenna must be

connected in its place (See F.M. Dummy Antenna diagram).

oem ISTAEAMPL m BAM, AUDIO

0

'A r nun

FM oss who '0'7 n s m I mums Junavloa.
lsTl-F AMPUHERM mums vvmos u1v,eo omg;

SOCKET VOLTAGE CHART

' " iSTIfF, TRANS 2ND~L~E TRANSV aNDL-E TRANS

moo Kc, '

ANI/mr. TRIMMER f t f A f t t t
moo Ko, sPEAKER I
PHCNO RATIO ost ma
>> JACK sricv ADJST. for/Mn
, AC POWER LEADS To ~
ANTV TERM. BOARD A.C.PHONO MOT()

CHASSIS TOP VIEW SHOWING ALIGNMENT ADJUSTMENTS

(C)J'ohn F. Rider

Page 3:

AFFILIATED RETAILERS PAGE 21-3

MODELS AR~250MU, AR-ZElBU,
ALIGNMENT CHART
Align- Signal Generator Output Position of
ment Tuning Type Of
Se- Frequency ln Series To Range Dial or Adjust Selectivity Remarks
quence With Sw. Tun. Cap. Curve
1 455 kc. .01 mfd, Stator plates of C1B AM Open A & B Single Peak
2 455 kc. .01 mfd. Stator plates of ClB AM Open C & D Single Peak
3 10.7 mc. .01 mid. 2nd I-F Grid pin 1 V4 FM Open E See note 1
4 10.7 mc. _01 mid. 2nd I-F Grid pin 1 V4 FM Open F See note 2
5 Repeat steps 3 a'nd 4 Remove the two
100K ohm re-
sistors after
6 10,7 mc. .01 mid. lst I-F Grid pin l V3 FM Open G & H `>'ee note 3
retouch
7 10.7 mc. _01 mfd. Stator plates of C1E FM Open I & K See note 4
8 Readjust G & H and ] K: K for maximum gain See note 4
9 98 mc. F.M. Dipole Ant. Terminals FM 98 mc. L See note 5
Dummy Ant.
10 104 mc. F.M, DipoleAnt.Terminals FM 104 mc, M See note 6
Dummy Ant.
11 92 mc. F.M, Dipole Ant. Terminals FM 92 mc. N See note 7
Dummy Ant.
12 Repeat steps 10 and 11 until no further improvement in sensitivity is noted.
13 1400 kc. 30 mmf. Ext. Ant. Term. AM 1400 kc. P See note 8
or A.M. Dummy Ant.
14 1400 kc. 30 mmf, Ext. Ant. Term. AM 1400 kc. Q & R See note 8
or A.M. Dummy Ant. J
' ' ExT. ANTENNA O__ 59 ?"'"$
AM scREw TERMWAL FM CARBON INPUT
SIGNAL SIGNAL RESSTORS
GENERATOR GROUND To GENERATOR O_ TERM'NALS
RECEIVER CHASSIS 59 ohms
A. M. DUMMY ANTENNA F. M. DUMMY ANTENNA

(C)John F. Rider

Page 4:

PAGE 21-4 AFFILIATED RETAILERS

MODELS AR-QSOMU, AR~2515U,

ARQSMMU, AR`2553U ALIGNMENT NOTES

1. Connect two 100,000 ohm, 5%, carbon resistors (part no. 39375-97) in series,from pin 2 of V5 to ground.
Then, connect an electronic voltmeter (negative polarity) across these resistors. Adjust "E" of T5 for

maximum meter reading.

2. With the two 100,000 ohm resistors still connected as explained in note 1, connect the electronic volt-
meter from the center junction of the resistors to the junction of R26 and R29. Adjust "F" of T5 for
l zero volts, first using a high scale on the voltmeter and then the lowest scale to obtain close balance.

43. Connect the electronic voltmeter from pin 2 of V5 to ground. Then adjust "G" and "H" of T3 for maxi~
mum meter reading. Retouch "E" of T5 for maximum meter reading.

4. With the voltmeter connected as for note 3, adjust "1" and "K" of T1 for maximum meter reading.

5. Adjust turns on F.M. oscillator coil by spreading apart or squeezing together, as required to make the
98 megacycle signal fall on 98 megacycles on the dial. See F.M. Dummy Antenna diagram.

6. Rotate variable capacitor rotor plates slightly back and forth while adjusting "M" to obtain maximum
meter reading. See F.M. Dummy Antenna diagram.

'7. Adjust turns on R.F. coil until maximum meter reading is obtained. See F.M. Dummy Antenna diagram.

8. Adjust for maximum output. See A.M. Dummy Antenna diagram.

MEGACYCLES T0 CHANNEL NUMBERS "FM" BAND
Frequency in Channel Frequency in Channel
Megacycles No. Megacycles No.
To find the frequency in megacycles for CHANNEL NUMBERS between those given above, add .2 mega-
cycles for every whole number added to the CHANNEL NUMBER; for example Channel 204 would be 88.7
megacycles and 251 would be 98.1 megacycles.

(C)John F. Rider

Page 5:

AFFILIATED RETAILERS PAGE 21-5

(C)John F . Rider

Page 6:

'AGE 21-6 AFFILIATED RETAILERS

MODELS 113-25000, .AR-25130,

REPLACEMENT PARTS LIST

symbol ' ' P o Descri tl' n
Nm Part No. Description N0* art N , P o
c14 c.144953.3 capacitor, variable coz w.135990 connector (Female), Phono
cis capacitor, variahie cos Avi-143495 shieided wire Assy., Phono
c1c capacitor, variaole Five section co4 34391214 connector 5 wire Assy., Phono Motor
cz c4311214 capacitor, 100 mini., 300 v., ceramic 12 Ac439919.3 Transiormer, 1st1.F, (455 kc)
cs 33001.01 capacitor, ,025 mid., 500 v., paper T3 34450254 Transiormer, 2nd1.F. (10.1 mc)
c4 c-l44015.2 capacitor, .005 mid., 500 v., disc ceramic T4 lic-1399194 Transformer, 2nd liF, (455 kc)
c5 c431121-01 capacitor. 33 mini., 500 v.. ceramic 115 c445193 Transformer, Ratio Detector
cs c431121.43 capacitor, 15 mini,, 500 v., ceramic 15 3.144910 Transformer, Power
c1 c4311214 capacitor, 100 mmi., 300 v., ceramic 11 3445000 Transiormer, output
c0 c.144515.2 capacitor, 5000 mmf., 500 v., disc ceramic L1 Not stocked Loop Antenna (2.10H . No. 12 wire)
c9 39001.01 capacitor, .025 mid., 000 v., paper 1.2 Aw-143031 coii, choke
clo 39001.13 capacitor, .01 mid., 500 v., paper 1.3 Aw-145112 coii,-1-`.M..3,F.
cli c431121-0 capacitor, 1000 mini., 300 v., ceramic L4 3.143322 coil, Antenna Primary (11,11)
c194 c-144s15.0 capacitor, .004 mid., 500 v. Two section. L5 Aw-145104 coil, Antenna secondary (1:1117
c123 capacitor, .004 mid., 500 v4 Disc ceramic L5 Aw-145004 coii, oscillator (3.11.)
c14 w-131390-5 capacitor, 3.3 mmf., 500 v. 1.1 Aw445312 coil, oscillator (4.11.)
c15 39001.13 capacitor, .01 mid., 500 v., paper L0 .iw-144951 coil, choke
cis 3443505-3 capacitor, 100 mmi., 500 v., molded disc ceramic L9 ,iw-140555 coil, Antenna Loading
c11 c.131121-0 capacitor, 1000 mint., 300 v., ceramic 1.10 4111445993 Transformer, 3,3.
c10 3.142950 capacitor, 4 mid., 50 v., Electrolytic swi w440400 switch, 3and selector
c19 w-l45913.1 capacitor, 120 mmf., 5%, 500 v. ceramic sw2 39359-1 switch, Power
can w.131390-3 capacitor, 1_5 mmf., 500 v; 3111 114432194 Record changer (v950)
c31 0431121409 capacitor, 39 mmi., 10%, zoo v., ceramic 43.140501 Background Assy., Dial
c22 c-131121.90 capacitor, 100 mmi,, 5%, 500 v., ceramic 140533 Batiie, speaker
c23 3.143005-0 capacitor, 12 mmt., 500 v., molded disc ceramic 143405 3umper (Ruhoer), Doors
c24 c.141951.2 capacitor . Resistor 3.140511 caoinet (11.250110, l1-2521v10, 11-254M0)
c25 c.131111.0 capacitor, 1000 mmi., 300 v., ceramic R-143503 cabinet (11.25130, 11.25330, 11-25530)
ces 39001.11 capacitor, 4005 mid., 500 v., paper 01435201 ciip, Dial class
c21 39001.13 capacitor, ,01 rntd., 500 v., paper w-145510 ciip, sub chassis Mtg.
c20 c-131121.93 capacitor, 20 mmi., 2%, 500 v.. ceramic w.135999.1 connector (Mais), shielded Fhono wire
cz9 c-144515.2 capacitor, .005 mid., 500 v., disc ceramic 10.135053 cushion (Rubber), Diai class
c3o c.131121.0 capacitor, 1000 mmf., 300 v., ceramic 140551 neca1, ott-on.vo1.'rone
c31 30001.11 capacitor, .005 mid., 500 v., paper 140550 Decal, Tuning.3n.A1i-F11
c32 39001.01 capacitor, .025 mtd., 500 v., paper c440531 Dial class (11.350110, 11.25130)
c33 0.144015-2 capacitor, .005 mid, 500 v,. disc ceramic c-14s101 Dial class (11.252110, 11-25330, 11.254110, 11.25530)
c34A 3444990 capacitor, so mid., 300 v. 143605 Door, Radio _
c3411 capacitor, 30 mid., 300 v., Forir section Front, Drawer 1 Palff11'l51BU1 11-25351* 11-25591"
c34c capacitor, 10 mid., 300 v4 Electrolytic 140519 Door, Radio
c35 c431121-0 capacitor, 1000 mmr., 300 v., ceramic 143500 Doors (1 pair), Record compartment (11.25130,
css c.131121.0 capacitor, 1000 mmi., 300 v., ceramic 11.25330, 11.25530)
c31 39001.11 capacitor, .005 mid., 500 v.. aper 140532 Doors,(l pair), Record compartment (11.250110,
css c.144515-12 capacitor, .001 mid., 500 v. Two section, ' 11.252110, 11.254100)
cas capacitor, .0001 mid,, 500 v, disc ceramic c-i45113-1 Escotcheon
c39 w.131390-5 capacitor, 3.3 mmi., 500 v, 140509 Griue cloth (11.25130, 11.25330, 11.25530)
c40 c.131121409 capacitor, 39 mmf., 10%, 200 v., ceramic 140534 Griue cloth (11.250110, 11.252110, 11.254110)
c41 c444515-2 capacitor, _005 mid., 500 v., disc ceramic 1405114 i-iinge (upper Le1t . Lower Right), Door (11.25130,
32 39313.33 Resistor, 1000 ohm, 1/2 w, 140105 i-iinge (upper Left - Lower Right), Door (11.250110,
R4 39313.33 Resistor, 1000 ohm, 1/2 w. 1400114 iiinge (Lower Leit . upper Right), Door (11.25130,
Re 39313.33 Resistor, 1000 ohm, 1/2 w4 145101 Hinge (Lower Lett . upper Right), Door (11.250110,
33 39314.14 Resistor, 120 ohm, 10%, 1/2 w. 34405434 Rnoh, 3and selector
310 39313.41 Resistor, 4100 ohm, 1/2 w. w-45500 Mounting (Rubber), Rand selector switch; speaker
R11 39313401 Resistor, 10 megohm, 1/2 w. 140010 Panei, Radio Dial (11.25130, 11-25330, 11-25530)
313 39314.42 Resistor, 21,000 ohm, 10%, 1/2 w, 140505 Fanei, Radio Diai (11.250110, 11.252110, 11.254110)
313 39314.41 Resistor, 22,000 ohm, 10%, 1/1 w. w-130015cL Pin, speaker cable
R11 99313.91 Resistor, 2,2 megohm, 1/2 w, 140001 Pu11, Knob (11-25130, 11-25330, 11.25530)
R19 39350.11 controi, Tone (z megohm) w-131939-2 Pulley (Idler), Dial Drive cord
320 39350.10 coniroi, volume (1 megohm, Tap 015,000 ohm) w431110 Retainer, Record changer Mtg. screw
39369-1 switch, Power "#4919404 Rivet, omi roi-ive idler rcriey
33310-2 shait. volume control 914444904 screw, cscutcheori
1121 34440514 Resistor, 1100 ohm, 10%, 1 w., w.w. w-140501 shait, Diai Drive
R22 39313.51 Resistor, 41,000 ohm, 1/2 w. 140504 she1iAssy., Drawer (11.25130, 11.25330, 11.25530)
R20 39313.01 Resistor, 410,000 ohm, 1/2 w. 143510 sheli Assy., Drawer (11.250110, 11.252110, 11.254110)
R24 35374-1'] Resisior, 220 Ohm, 10%, 1/2 W, W-139040 Shock MOI-ml, Sub Chassis Mig.
R25 39313.00 Resistor, 220,000 ohm, 1/2 w. 143410 slide, Drawer
R25 39319.51 Resistor, 41,000 ohm, 1/2 w. D.135555.15 socket, Dia1 Light
323 39313.54 Resistor, 33,000 ohm, 1/2 w4 w444132 sociret, Tube (v2)
330 39314.43 Resistor, 33,000 ohm, 10%, 1/0 w. 39232-1 socket, Tube (v0)
R32 39313.31 Resistor, 410,000 ohm, 1/2 w. w-l45151 spring, Diai Drive cord
cA1 c.132300.2 cable ir Firig Assy., power w49029 spring (Lock), Dia1 Drive shaft
11 1304314 3ulh (Dial), Type 41, 9.3 v., ,15 amp4 w-143552 strip, Dial Pointer
C01 AVI-148639 Terminal Board, Anlerma

(C)John F. Rider

Please note: we carry a wide range of products which will fulfill the specifications above. Please use our search function or browse our products to find what you need!