Marantz 105b User manual

SERVICE

MANUAL

..........

....

";;i//L

TABLE

OF CONTENTS

SECTION PAGE

Introduction

...............................................................

1

AM

Tuner.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..

1

FM

Tuner. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..

1

AM

Alignment Procedure

.....................................................

3

FM

Alignment Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..

3

Test Equipment Required

for

Servicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..

4

Parts List

.........

.

....................................................

13

~

17

Technical Specifications

....................................................

.18

LIST

OF

ILLUSTRATIONS

FIGURE PAGE

1.

Dial Stringing

..........................................................

5

2.

Front

Panel

Adjustments and Component Locations. . . . . . . . . . . . . . . . . . . . . . . . . . .

..

6

3. Main

Chassis

Component Locations (Top View)

................................

6

4.

Rear

Panel Adjustment and Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..

7

5. Main

Chassis

Component Locations

(Bottom

View)

.............................

7

6.

FM/

AM Tuner Assembly P100 Component Locations. . . . . . . . . . . . . . . . . . . . . . . . . .

..

8

7. FM,

AM,

Mono and Muting Switch Assembly P300 Component Locations. . . . . . . . .

..

8

8. Power Supply Assembly P400 Component Locations

..........................

" 8

9. Schematic Diagram

...................................................

9, 10

10. Exploded Mechanical Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..

11, 12

TABLE

1.

Test Equipment Required

for

Servicing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..

4

I

NTRODUCTI

ON

This

ser

vi

ce

m

an

ual w

as

prepared f

or

u

se

by

Auth

or

iz

ed

Warranty Stations and contains service

i

nf

ormation

for

Marantz

Mod

el

l 05B Stereophonic T

un

er.

Servicing in

for

mat

io

n

an

d v

ol

ta

ge

data included in this manual

are

intended

for

use

by

the

k

no

wledgeable and experienced technician only.

All

instruction

should

be

read

carefully. No

at

tempt should be m

ade

to proc

eed

wit

h

out

a good understanding

of

the operation in the

tuner.

The

part

lists furnish

infor

mation by which replacement part may

be

ordered

from

the

Marantz Com

pa

ny. A simple descrip

tio

n

is

included for parts which can

be

usually

be

obtained

th

rough local suppliers.

Th

e

Mod

el 1058

is

a

tu

ner version

of

the Marantz

's

Model

20

15

Tu

ner/Amplifier

and

almostthe

sam

e circu

itr

y as u

se

d in the Model

201

5 is empl

oy

ed except

the

audio

Amplifier,

and power

su

pp

ly

circu

it

.

1.

AM

Tuner

All components exce

pt

ferrite bar

an

te

n

na

are

mounted on a printed

circuit

board

Pl00.

T

he

AM

signals induced in a

ferrite

bar antenna

are

applied

to

the

base

of

converter transistor

H113

through a capacitor

of

C171,

whil

e t

he

local o

sci

llat

or

voltage

is

injected

to

the

emitter

of

H113

through a capacitor C172. Bo

th

AM signa

ls

and oscillating voltage

are

mixed

at

the

base-

em

itter

ju

nctio

n and converted

int

o 455KHz intermediate frequency. The resulting IF signal

is

ap

plied

to th

e f

ir

st IF

tr

ansformer L116 consisting

of

one ceramic

filter

and

two

tuned circuits.

The o

utp

ut

of L11 6

is

le

d

to

the tra

ns

istor H1

04

which in

turn

apply its

output

to

the

t

ra

nsist

or

of

next stage

Hl05.

T

he

fu

lly amplified IF

output

is

then applied

to

the diode H123

to

detect audible

si

g

na

l

th

rough the

det

ector tra

ns

f

ormer

L117. The detected audio signal

is

filtered

and

th

e final

au

dio

out

put

is

obtained

from

pin terminal J118 and applied:

to

the

output

jacks

th

rou

gh

the

funct

io

n sw

it

ch.

The DC c

om

ponent

of

the detected IF

sig

n

al

is

used

as

a AGC voltage

to

control

emitter

c

urr

ent

of

H104

th

rough

th

e resistor R185. A part

of

IF signal

output

is

also applied

to

the diode

H

124

th

rough a capac

itor

C1BO

and rectified to obtain

DC

current

for

energizing the

AM

signal

stre

ng

th meter

M0

01.

1.1 Suggestions

for

AM

Tuner

trouble

shooting

Che

ck

for broken A M bar antenn

a,

to

tune station

by

rotating fly-wheel

tuning

knob

sl

o

wly

and observe the

AM

sig

n

al

streng

th

meter whether

it

deflects

or

not.

If

the signal strength

me

ter

gi

ves a

deflection

at

se

ver

al

fr

equencies received, no failure may exist in the

stages

at least

preceding final IF transf

or

m

er

L117. N

ext

connect a oscilloscope

to

the pin terminal J118 and

ch

ec

k

for

audio signals with the

tuning

meter deflected.

If

the signal strength meter does

not

deflect, check the local

osc

illa

tor

circuit. Norm

al

oscillating voltage at the

hot

end

of

the

osci

llator

tuning

ca

p

acitor

is

about 2

or

3 volts, varying

with

tuning

capacitor position. When

me

asu

ring oscillating voltage

use

a RF V

TV

M, no

circuit

tester gives correct indication.

If

the

local oscillator

volt

age

is

normal, check all voltage dist

rib

u

tion

in

the

AM

circuits by using a

DC

VTVM

and compare the measur

ed

values

with

those given in the schematic diagram.

2.

FM

Tuner

All components

are

m

ou

nted on a printed circ

uit

board P100.

FM signals induced by a FM

an

tenna are l

ed

to

FM antenna coil L101.

These signals are then applied to the FET RF

amplifier

which in

turn

applies its

output

to

the

to

r mixer

Hl02

th

rough a hi

gh

Q

tuned

circuit.

The

mixer

convert its in

put

sign

al

int

o

10.71V1

Hz

intermediate frequency and amplifies

it

at the

same

ti

m

e.

The

H1

03

is

a local o

sc

illator

and its

output

is

injected

into

the

base

of

mixer

tr

an

s

is

to

r, t

he

injection voltage

is

a

bo

ut

40mV.

1

---

.........:.:.

The 10.7

MHz

front

end

output

is

led

to

the

The

IF section consists

of

five

stage

of

IF

amplifier

and one stage

of

sub IF

amplifier.

Two

pieces

of

ceramic

filters

are also used

to

obtain

high

selectivity,

a

pair

of

symmetrical

diode

limiters

are also

employed

for

the

best

limiting

characteristics,

improved

capture

ratio

and good

AM

suppression. A

part

of

IF

amplifier

H1

05

output

is

rectified

by the

diode

H115, H

116

and

its

DC

output

is

fed back

to

the gate

of

FET

RF

amplifier

to

decrease the gain

with

increased signal strength.

2.1

Muting

and

Auto-Stereo

Switching

Circuits

The

muting

circuit

consisting

of

all solid-state electrical

switchin

g

has

been

incorporated

in the

Mode1105B.

The DC voItage

obta

ined

by

rectifi

ng

the

su

b IF

output

signal

from

the

H

109

is

appIied

to

the

base

of

H

11

0 and

turns

on

it,

if

th

e sub IF

output

is

greater than

predetermined

level

(muting

threshold

level).

When

H110

turns

on,

the

muting

switch

transistor

H111

is

turned

on,

thus

decreasing

the

emitter

collector

resistance

to

near zero

ohm

and

allowing

emitter

current

path

to

the

Final

IF

ampl

ifier

H108.

When

the

input

signal

is

lower

than

the

predetermined

level, the

DC

output

obtained

is

small

and can

not

turn

on the

H110,

thus

the

H110

keeps its

turn

off

state and

this

makes the switch

transistor

keep H111

turn

off,

then

no

emitter

current

is

supplied

to

the

H108

and signals

below

the

threshold

level are

muted

out.

The

muting

threshold

level can be varied

by

adjusting

the

trimming

resistor R153.

The

DC voltage

obtained

is

also used

to

make

the

Auto-Stereo

switching

transistor

H

112

turn

on

and

off.

2.2

MPX

Stereo

Deco

di

ng

Circuit

A Non-equalized

audio

signal

from

the

FM

detect

or

is

applied

through

the

phase

adjuster

network

of

C148

and R161

to

input

termin

al

CD

on

the

MPX decoder IC

Hl14.

The

MPX

decoder

Ie

consists

of

a stereo decoder and postampl

ifier

for

the

ou

tput.

The

right

and

left

channel signals decoded

by

the

stereo decoder H

11

4,

appear

at

@

(right

channel) and

QJ)

(left

channel), respectively. These signals are

passed

through

the

low-pass

filters

and

de-emphasis

networks

to

eliminate

undesirable residual

switching

signals and are

then

delivered

to

postamplifier

input

®

(right

channel) and

(j)

(left

channel), respectively.

The

signals

ampl

ified

in

the

postamplifiers

to

the

required

level·

(approximately

10

dB)

are delivered

to

®

(right

channel) and

®

(left

channel), and are

then

passed

through

C169 and

C168

to

terminals

Jl14

and

Jl15,

hence,

through

fu

nc

tion

switches

to

the

"OUTPUT"

terminal.

(j])

on

the

MPX

IC

Hl14

is

connected

through

R1

63

to

the

collector

of

the

autostereo

switch

transistor

Hl12,

which

turns

on

or

off

acc

ording

to

the

incoming

FM

signal

strength,

thereby

automatically

switching

between

the

stereophonic

and

monaural

operations

.

The

H

112

turns

on

or

off

in accordance

with

whether

the

FM

si

gnal strength

is

more

or

less

than

approximately

25~V.

2.3 Suggestion

for

Trouble

Shoo

ting

of

FM

T

uner

2.3.1

Symptom:

No

FM Recept

io

n

First

turn

on

the

power

switch

and

try

to

tune FM

stations

. R

otate

the

fly-wheel

tuning

knob

slowly

and observe

the

FM

TU

N

IN

G meter.

If

the

TUNING

meter

deflect

at several

frequencies received, the

tuner

circuits

preceding the

discriminator

cir

cuit

may

have no failure.

When

no

reading

is

obtained

in

the

meter, check FM local

oscillator

circuit,

usi

ng

a RF

VTVM.

The

normal

local

oscillator

voltage

is

one

or

two

volts

(rms)

at

the

tuning

capacit

or

, depending on

the

tuning

capaCitor

position.

If

the

local

oscillator

voltage

is

normal

,

distribution

in

the

FM

Front

End and IF

amplifier

unit

and

compare

them

wit

h those shown in

the

circuit

diagram. When

TUN

ING

meter

deflects

but

no

so

un

d

is

obtained,

check

audio

circuits,

using high sensitive oscilloscope.

2

2.3.2

Symptom:

No

Stereo Separation

First check the

"MONO"

switch

is

in normal

out

position. Connect a FM RF signal generator

output

modulated

by

a stereo

modulator

to

the rear FM antenna terminals, and check the stereo

beacon

is

turned

on

or

not.

If

not

turned

on, check

for

19 KHz

pilot

signal and 38 KHz switching

signal, usi,

ng

an

oscilloscope.

3.

AM

Alignment

Procedure

3.1

AM

IF

Alignment

1. Connect a sweep generator

to

the

test

point

®

or

J107 and

an

alignment scope

to

the test

point

@.

2.

Rotate

each

core

of

IF transformer L

116

and L

117

for

maximum

height and

flat

top

symmetrical response.

3.2

AM

Frequency Range and

Tracking

Align

m

en

t

1. Set

AM

signal generator

to

525

KHz.

Turn

the

tuning

capacitor

fully

closed (place the

tuning

pointer

at the

low

end.) and adjust the

oscillator

coil L115

for

maximum

audio

output.

2.

Set

the

signal generator

to

1650 KHz. Place the

tuning

pointer

in

the

high frequency end and

adjust the oscillator

trimmer

on

the

oscillator

tuning

capacitor (CA-2)

for

maximum

audio

output.

3. Repeat the step 1 and 2

until

no

further

adjustment

is

necessary.

4. Set the generator

to

600

KHz and

tune

the receiver

to

the

same

frequency and adjust a slug

core

of

AM

ferrite

rod antenna

for

maximum

output.

5.

Set the generator

to

1400

KHz and tune the receiver

to

the

same

frequency and adjust the

trimming

capacitors

of

Antenna (CA-1)

for

maximum

output.

6. Repeat the step 4 and 5

until

no

further

adjustment

is

necessary.

Note:

During

tracking alignment reduce the signal generator

output

as

necessary

to

avoid

AGC

action.

4. FM

Alignment

Procedure

1.

Connect a FM signal generator

to

the FM antenna terminals and a oscilloscope and

an

audio

distortion

analyzer

to

the tape

output

jacks on the rear panel.

2.

Set the

FIVI

SG

to

87.5

MHz and provide

about

3

to

5

J.lV.

Place the

tuning

pointer

at

the

low

frequency end

by

rotating

the

tuning

knob

and adjust the core

of

oscillator coil L103

to

obtain

maximum

audio

output.

3. Set the FM

SG

to

108.5

MHz

and provide

about

3

to

5

J.lV

output.

Rotate the tuning

knob

and

place the

tuning

pointer

at the h

ig

h frequency end and adjust the

trimming

capacitor C187

for

Maximum

output.

4. Repeat the step 2 and 3

until

no

further

adjustment

is

necessary.

5.

Set the FM

SG

to

90

MHz and tune the receiver

to

the

same

frequency. Decrease signal

generator

output

until

the audio

output

level decreases

with

the decreasing generator

output.

Adjust

the antenna coil

L101,

RF coil

L102

and IF

transformer

L105

for

minimum

audio

distortion.

6. Set the

FM

SG

to

106 MHz and tune the receiver

to

the

same

frequency.

Adjust

the

trimming

capacitor

CF-l,

CF-2

for

minimum

distortion.

7.

Repeat the step 5 and 6

until

no

further

adjustment

is

necessary.

8. Connect a DC

VTVM

with

±0.5

volt

range selected

to

the test

point

® (J'120) and adjust the

secondary core (upper)

of

discriminator

transformer L107

so

that

no voltage reading

is

obtained on the

VTVM

at

no signal.

SG

to

98

MHz

and increase the

output

level

to

1

KJ.lV,

then tune the receiver

to

the

same

frequency

so

that

no

deflection

is

obtained on the

VTVM.

Adjust

primary

core

(bottom)

of

L107

for

minimum

distortion,

and adjust the L108

for

the

maximum

reading on

the

VTVM

connected

to

the J109.

..

_--

............

4.1

STEREO

Separation

Alignment

1. Set the FM

SG

to

provide 1 K/-lV at

98

MHz

.

Tune the receiver

to

the

same

frequency

perfectely

(so

that

the

VTVM

connected

to

the test

point

® gives no reading).

2. Modulate

the

FM

SG

with

stereo composite signal consisting

of

subchanged signal

only

(of

course a

pilot

signal must

be

included).

Adjust

the core

of

L110

for

maximum

audio

output,

then,

modulate

the

FM

SG

with

a stereo

composite signal consisting

of

L

or

R channel

only,

and adjust the

trimming

resistor R161

for

maximum

and equal separation in

both

channels.

4.2

Muting

Circuit

Alignment

1.

Set the FM

SG

output

to

provide

25

/-lV

(lHF)

at

98

MHz and tune the receiver

to

the

same

frequency.

Adjust

the

trimming

resistor R153

for

the threshold level

of

25

/-lV

(during this

adjustment

turn

the

MUTING

pushswitch

"on").

5. Test

Equipment

Required

for

Servicing

Table 1 lists the test

equipment

required

for

servicing the Model 105B Tuner.

Item

Manufacturer

and Model No.

Use

AM

Signal Generator Signal source

for

AM

align-

ment

Test

Loop

Used

with

AM

Signal generator

I FM Signal Generator

Less

than 0.3%

distortion

Signal source

for

FM align-

ment

Stereo Modu

lator

Less

than 0.3%

distortion

Stereo separation alignment

and

trouble

shooting

A

udio

Oscillator

I Weston Model CVO-

l00P,

less

than 0.02% residual distor-

tion

is

required

Sinewave and squarewaves

sig-

nal source

Osc

ill

oscope High sensitivity

with

DC

hori-

zontal and vertical

amplifiers

Waveform analysis and

Trou-

ble Shooting, and ASO align-

ment

VTVM

With

AC, DC, RF range Voltage measurements

Circuit

Tester

Trouble

Shooting

Table

1.

Test Equipment

Required

for

Servicing

4

56

POINTER

Figure

1.

Dial

Stringing

5

...

--

..

--

...

~

/

A

~"",_C£-

wnod

..

• I " .

ion

SOOl

Figure

2.

Front

Panel

Adjustments

and

Component

Locations

1

'-----

P400

---

l02

Figure

3.

Main

Chassis

Component

Locations

(Top

View)

6

JO

3

LOOt

J012

Figure

4.

Rear

Panel

Adjustment

and

Component

locations

GOOt

ROOl

•

o

•

1 61

Figure

5.

Main

Chassis

Component

locations

(Bottom

View)

7

...

--

..

--

...

~

Figure

6.

FM/AM

Tuner

Assembly

Pl00

Component

Locations

•

Figure

7.

FM,

AM,

Mono

and

Muting

Switch

A

sse

mbly

PlOO

Component

Locations

••

--:

=--

-"IVV\---.:.ee

_:--~'I/W1I,-.

------'

••

Figure

8.

Power

Supply

Assembly

P400

Component

Locations

8

HI02

ti

II

0

Hr03"""

lOS

HlI!

•

nt:

H

113

ti1l4

H!l5.116.ll'9

....

IZ5

H H 7

,118

TRANSISTOR

HD2001105

HTl05361G

HTl05361

E COf'HU':cTION

2SC536G 2SC536E

151555

IBOTTOM

VIEW)

I'M

HIO

AM

HIOZ_t·nI3

LOCH

..

O.ORAIN

z

..

S SOURCE

G

GATE

E;

EMITTER

'"

<

MOOI

COOl

fiflure

9.

Schematic

1-1401

PARTS

LIST

REF.

PART

NO.

DESCRIPTION

DESIG.

A

284906340

Front

Panel Assembly

0103

Es

cutcheon

01

04

284906301 Frame

0105

282740101

282715801

Window

0106

Bush x 5

0108

281825905

Cover

284905301

Fly Wheel Assembly

0427

B

285027340

257706302

Escu

tcheon

x2

0429

Fly

Wheel

0431 257727301

285011201 Shaft

0607

53110603E

Hexagon Nut

0609

Flat Washer P

54020601E

S

tri

ng

Asse

mbl

y

0512

C

120200640

120225801 Ho

ok

0513

S

tr

i

ng

72080802A

P

ointer

Assembly

0526

285010341

D Pointer

0527 281810301

285010301 Pointer

0528

Cover

M007

281805301

IN1008030

Lamp

Rea

r

Pane

l Assembly

0703

E

284916040

284916001 Bracket

0821

T.R

.

Riv

et x 2 I

I

J002

55060365S

YJ0400018

Jack

PlOD

YD2886001

P.W.

Board,

Tuner

YD2849101

P.W.

Board Assembly

RESISTORS

All

resistors

are

±

5%

and '!.W, I

unless otherwise indicated.

Rl0l

lOOn

Rl02

RT0510114

RT0556314

56Kn

I

Rl03

RT0510514

lMn

Rl04

RT0510414

100Kn

Rl05

RT0510114

100n

Rl06

RT0510514

lMn

Rl07

RT0510214

1

Kn

Rl08

RT0510114

loon

Rl09

RT0510114

lOon

Rll0

RT0510314

10Kn

R

l1

1

RT0510314

10Kn

Rl12

RT0512214

1.

2Kn

Rl13

RT0533314

33Kn

Rl14

RT0547114

470n

Rl15

RT0515114

150n

Rl16

RT0515114

150n

Rl17

RT0522214

2.

2Kn

Rl18

RT0515214

1.

5Kn

Rl19

RT0510114

loon

R120

RT0556214

5.6Kn

R121

Ri0512314

12Kn

R122

RT0510214

lKn

R123

RT0510114

loon

R124

RT0515114

150n

R125

RT0533114

330n

REF.

DESIG.

PART

NO.

DESCRIPTION

R126

R127

R128

R129

.

R130

RT0533214

RT

0510214

RT0533214

RT0515314

RT0527214

3.

3Kn

lKn

3.3Kn

15Kn

2.

7Kn

R131

R132

R133

Rl34

R135

R136

R137

Rl38

R139

R140

RT0515114

RT0533114

RT0515114

RT0510114

RT0510414

'RT0515114

RT05822

14

RT0515314

RT0510214

RT0522114

150n

330n

150n

lOOn

100Kn

150n

8.2Kn

15Kn

lKn

220n

R141

R142

R143

R144

R145

R146

R147

R148

R149

R150

RT0582114

RT0510114

RT0568214

RT0518314

RT

0510314

RT0522314

RT0582214

RT0515314

820n

loon

6.

8Kn

6.

8Kn

18K

n

10Kn

22Kn

8.2Kn

15Kn

I

R151

R152

R153

R154

R155

R156

R157

R158

R159

R160

RT0510114

RT0533314

RA0104015

RT0522314

'

RT0522314

RT0547314

RT0533214

RT0510114

AT0518314

RT0510014

loon

33Kn

Trimming,

100Kn

(B)

22Kn

47Kn

3.

3Kn

lOOn

18K

n

10n

R161

R162

R163

Rl64

R165

R166

R167

R168

R169

R170

RA0103020

RT0547214

RT0515214

RC1033412

RT0568414

RT051

0414

RT0568414

RT0510414

RT0543214

Trimming,

10Kn

(B)

4.7Kn

1.

5Kn

330Kn

±

10

%,

'h

W

680Kn

100Kn

680Kn

100Kn

4.

3Kn

4.

3Kn

R171

Rl72

R173

R174

R175

R176

Rl77

R178

R179

R180

RT0510214

RT

0510214

RT0522414

RT051

oj

14

RT0515214

RT0568214

RT0515314

RT0527214

RT0515214

lKn

220Kn

100n

1.5Kn

6.

8Kn

15Kn

2.7Kn

1.5Kn

I

R181

R182

R183

R184

R185

R186

R187

RT0582314

RT0522114

RT0556214

RT0582314

RT0515314

RT0513314

RT0522214

82Kn

220n

5.

6Kn

82Kn

15Kn

13Kn

2.

2Kn

I

13

.....

--

..

--

...

~

REF.

DESIG.

PART

NO

.

DESCRIPTION

R188

RT05472

14 4.7K!1.

R189

RT0522214

2.2K!1.

R190

RT0522314

22K!1.

R191

RT0533214

3.3K!1.

R192

RT0515214

1.5K!1.

R193

RT0527414

270K!1.

R194

RT0510414

100K!1.

CAPACITORS

Cl0l

CA3240007

Variable, FM-3,

AM-2,

Gang

Cl02

001210001

Ceramic, 10PF ±

10

%

Cl03

OK1710201

Ce

ramic,

O.OOl,uF ±

20

%

Cl04

OK

1820302

Ceramic, 0.02,uF

+100

%,

-0%

Cl 05

EM2240251

Electroly,

0.22,uF,

25V

C

l06

OK1820302

Ceramic, 0.02,uF +100%, -O"

'{'

Cl07

OK1820302

Ceramic, 0.02,u F +100%, -O"

'{'

C10B

OK1840302

Ceramic,

O.04,uF

+80

%,

-20%

Cl09

0012

10001 Ceramic, 10PF ±

10

%

Cll0

001105001

Ceramic, 5PF ± 0.5PF

Cl

ll

001530101

Ceramic, 300PF ±

5%

Cl12

001615003

Ceramic, 15PF ±

10

%

Cl13

OK 1710201 Ceramic, O.OOl,uF

±20

%

Cl14

OK 1

840302

Ceramic,

O.D4,uF

+80%,

-20

%

C115

OK1820302

Ceramic, 0.02,uF

+100

%,

-0

%

Cl16

001102004

Ceramic, 2PF ± 0.5PF

Cl17

001615003

Ceramic,

15PF±10

%

Cl18

001520001

Ceramic, 20PF ±

5%

Cl19

001207003

Ceramic, 7PF ±

lPF

C120

001525003

Ceramic, 25PF ±

5%

C121

OK1820302

Ceramic, 0.02,uF +100%, -0%

Cl22

001650101

Ceramic, 500PF ± 1

0%

C123

OK1840302

Ceramic, O.

D4,uF

+80

%,

-20%

C124

OK1820302

Ceramic, 0.02,uF +100%,

-0%

C125

EA

1060169

Electroly,

1

O,uF,

16V

C126

OK1840302

Ceramic,

O.D4,uF

+80%,

-20%

C127

OK1840302

Ceramic, 0.04,uF

+80

%,

-20%

C128

001620001

Ceramic, 20PF ±

10"

'{'

C129

EA

1060169

Electroly,

1

O,uF,

16V

C130

001610101

Ceramic, 10PF ± 10%

C131

OK1820302

Ceramic, 0.02,uF +100%,

-0

%

C132

OK1840302

Ceramic,

O.D4,uF

+80"/0,

-20

%

C133

OK1820302

Ceramic, 0.02,uF

+100

%,

-0%

Cl34

OK1820302

Ceramic, 0.02,uF

+100

%,

-0

%

C135

OK1820302

Ceramic, 0.02,uF +100%,

-0

%

C136

OK1840302

Ceramic,

O.D4,uF

+80"'{',

-20"

'{'

C137

OK1840302

Ceramic,

O.D4,uF

+80%, -

20

%

C138

EA1060169

Ele

ctroly,

1

O,uF,

16V

C139

001650101

Ceramic, 500PF ± 1

O"

'{'

C140

EA1060169

Electroly,

1

O,uF,

16V

C141

001620101

Ceramic, 200PF ±

10

%

C142

001620101

Ceramic, 200PF

±10

%

C143

OK1840302

Ceramic, 0.04,uF

+80

%,

-20"

'{'

C144

001610101

Ceramic,

100PF±10%

C145

OK1820302

Ceramic, 0.02,uF

+100

%,

-0

%

C146

EA1050509

Electroly,

l,uF,

50V

C147

EA1050509

Electroly,

l,uF,

50V

C148

OFl722201

Film,

0.0022,uF ±

20

%

C149

EA3350509

Electroly,

3.3,uF,

50V

C150

EA

1060169

Elec

troly,

1

O,uF,

16V

C151 OF 161-0201

Film,

O.OOl,uF ±

10

%

C152

EA

1060169

Electroly,

1

O,uF,

16V

C153

EA3360109

Electroly,

33,uF,

10V

REF.

PART

NO.

DESCRIPTION

DESIG.

C154 OF1627201

Film,

0.0027,uF ±

10

%

C155 OF1627201

Film,

0.0027,uF ± 10%

C156

EA4740501

Electroly,

OA7,uF,

50V

C157

EA4740501

Electroly,

OA7,uF,

50V

C158

OFl647201

Film,

0.0D47,uF ±

10"

'{'

C159

OFl647201

Film,

0.0047,uF ±

10

%

C160

OF1533205

Fi

lm,

0.0033,uF ±

5%

C161

OF1533205

Film,

0.0033,uF ± 5%

C162

OF5582101

Film,

820PF ±

5%

C163

OF5582101

Film,

820PF ± 5%

Cl64

OF1618205

Film,

0.OO18,uF ± 10%

C165

OF1618205

Film,

0.0018,uF ± 10%

C166 OF1615301

Film,

0.015,uF ±

10

%

C167

OF1615301

Fi

l

m,

0.015,uF ± 10%

C168

EA4740501

Electroly,

OA

7,uF

,

50V

C169

EA4740501

Electroly,

OA

7,uF,

50V

C170

EA2270169

Electroly,

220,uF,

16V

C171 OF1768201

Film,

0.0068,uF ±

20

%

Cl72

OFl722301

Film,

0.022,uF ±

20

%

C173

OF1740301

.

Film,

O.

D4

,u

F ±

20

%

C174

OF6539101

Film,

390PF ± 5%

C175

001620001

Ceramic, 20PF ±

10

%

C176

OF1740301

Film,

0.04,uF ±

20

%

Cl77

EA476010Q

Electroly,

47,uF,

10V

C178

OK1840302

Ceramic, 0.04,uF

+80"

'{'

,

-20"

'{'

C179

001530101

Ceramic, 300PF ± 5%

C180

001620101

Ceramic, 200PF ± 10%

C181

OFl647201

Fi

l

m,

0.0D47,uF ± 10%

C182

DFl64720

1

Film,

0.0047,uF ± 10%

C183 DK l

840

30

2 Ceramic,

O.D4,uF

+80%,

-20%

C184

EA

4740501

Electroly,

OA7,uF,

50V

C1

85

DK

1840302

Ceramic, O.

D4,uF

+80

%,

-20

%

C186

EA1050509

Elec

troly,

l,uF,

50V

C187

CTll00008

Trimming,

10PF, NPO

C188

OK1710301

Ceramic,

O.Ol,uF ±

20

%

SEMICONDUCTORS

Hl01

HF20D411 B F.E.T., 2SK41 (E)

Hl02

HT306681C

Transis

tor,

2SC668 (C)

Hl03

HT309301C

Tran

s

istor,

2SC930 (C)

H1D4

HT309301C

Transistor, 2SC930 (C)

Hl05

HT309301C

Transistor, 2SC930 (C)

Hl06

HT309301C

Transis

tor,

2SC930 (C)

Hl07

HT309301C

Tr

ansistor,

2SC930(C)

Hl08

HT309301C

Trans

istor,

2SC930 (C)

Hl09

HT309301C

Transistor, 2SC930 (C)

Hl10

HT305361G

Transis

tor,

2SC536 (G)

H111

HT305361

E Trans

istor,

2SC536 (E)

Hl12

HT305361

E Transistor, 2SC536 (E)

Hl13

HT309291C

Transis

tor

, 2SC929 (C)

H114

HC1001703

I.C.,

LA3310

Hl

15

H01000303

Oiode,

lS188FM2

Hl16

H01000303

Oiode,

lS188FM2

Hl17

H02001105

Oiod

e,

lS1555

Hl18

H02001105

Oiode,

lS1555

Hl19

H01000303

Oiode,

lS188FM2

H120

H01000303

Diode,

lS188FM2

H121

H01000303

Oiode, 1

S188FM2

H122

H01000303

Diode,

lSl88FM2

H123

H01000303

Oiode,

lS188FM2

H124

H01000303

Oiode,

lS188FM2

H125

HD1000303

Oiode,

lS188FM2

H126

H02000121

Oiode,

lS2473

-C

14

I

REF.

DESIG

. .

PART

NO.

DESCRIPTION

I

REF.

DESIG.

PART

NO.

DESCRIPTION

I

Jl0l

Jl03

I

J126

0906

0907

0908

1110

P400

R401

R402

R403

R404

C401

C402

C403

C404

C405

C406

C407

C408

H401

H402

H403

H404

H405

J401

I

J409

0403

0408

0409

0410

0412

0421

0422

0507

0611

0615

0618

0621

0623

0625

0626

YP10ool13

282110901

288610904

285010902

62031650W

YD2849004

ZZ

2849

004

GJ1025

102

GJl

0251

02

RT0533314

DK

181 0351

DK1810351

EA3370509

EA4770109

EA3370359

EA1070160

EA2270169

DK1840301

HT311751

E

HD2001003

HD2001oo3

HD2001003

HD3002109

YPloo0099

282716050

285020101

285016003

285016004

285012201

257710602

141511801

285016051

51040306A

51100306A

511oo306A

51100306A

MISCELLANEOUS

Plug

Shield

Lug

PW

. Board, Power

PW

. Board A

ss

e

mbly

RESISTORS

250n

± 10%,

2W

250n

± 1

0%

, 2W

33Kn

±5%.

YO

W

33Kn±

5%,

YOW

CAPACITORS

Ceramic, O.Ol,uF +100%,

-0"10,

500V

Ceramic, O.Ol,uF +100%, -0%, 500\1

Electroly

, 330,uF,

50V

Electroly,

470,uF,

10V

Electroly,

330,uF,

35V

Electroly,

1

OO,uF,

16V

Electroly,

220,uF,

16V

Ceramic, O.04,uF

+100

%,

-0"10

SEMICONDUCTORS

Transistor,

2SCl175

(E)

Diode, DS130

(YD)

Diode, DS130

(YD)

Diode, DS130

(YD)

Diode,

BZ140

MISCELLANEOUS

Plug

Bracket K

Partitioner

Bracket

Sticker

Bearing

Spacer

Bracket K

F.

H.M

. Screw x 2

B.H.M. Screw

x4

B.H.M. Screw

x4

B.H.M. Screw

x6

B.H.M. Screw

x2

B.H .M. Screw

x3

B.H.M. Screw

P300

R301

R302

R303

R304

R305

R306

C301

S301

J301

J302

Sool

MOOl

COOl

0417

1438

1439

0501

0503

0505

0502

1436

1437

0414

0631

J005

J006

J007

J008

M002

MOO3

MOO4

M005

1537

1538

R003

0415

0518

1536

P200

M201

M202

M203

J201

I

J205

I

YD2849OO3

ZZ2849703

RT0510214

RT0518314

GT0515212

RT0539214

EA4760169

SP0604oo3

YP

.

l00oo99

YP1000099

SP0301001

IM1104208

EA1070109

285011801

285012003

289105305

285016009

263711203

257726201

285016008

263711203

257726201

281827101

51570306B

YJ0800013

IN1008007

289110106

51570315B

RC1002012

282716003

282710701

51570306B

YD2849002

ZZ2849OO2

IN1006301

YP1000099

PW

. Board

P.

W.

Board Assembly

Resistor,

lKn

±5%,

Resistor,

lKn

±5%,

Resistor,

18Kn

±5%,

Resistor, '

18Kn

± 5%,

Resistor,

1.5Kn

±5%,

Resistor,

3.9Kn

±5%,

Electroly

Cap.,

47}..LF,

Push

Switch,

Band Selector

Plug

Push

Switch

DC Meter, Signal

Electroly

Cap.,

loo,uF,

Spacer

Insulator

Cover

Bracket

Shaft

Pulley

Bracket

Shaft

Pu

lley

Holder

P.H.

Tapt

Screw x 4

Socket

Lamp

Support

P.H .

Tapt

Screw

Res

is

tor,

2n

± 10%,

Bracket

Sheet

P.H.

Tapt

Screw x 2

P.w

. Board

P.W. Board Assembly

lamp,

6.

3V,

40mA

Lamp, 6.

3V.

40mA

Lamp, 6.

3V,

40mA

Plug

YOW

Y.W

YOW

16V

10V

Y.

W

I

15

......

__

....

a';"JJL

REF.

DESIG.

PART

NO.

DESCRIPTION

REF.

DESIG.

PART

NO.

DESCRIPTION

I

R002

RC1018012

Resistor,

18n

± 10%, 'hW

1033

138200503

Clamper

x4

0413

282727401

Reflector

1103

51570408B

P.H .

Tapt

Screw x 2

0619

51570306B

P.H.

Tapt

Screw x 2 1104

54040402N

Spri

ng

Washer

x2

0630

51570305B

P.H.

Tapt

Screw x 4

1108

51570306B

P.H.

Tapt

Screw x 6

0418

282705101 Guide

1113

51570306B

P.H.

Tapt

Screw x 3

0718

145525903

Bush x 2

1122

51570306B

P.H .

Tapt

Screw x 8

0814

51100306S B.H.M. Screw

x3

1124 51100306S B.H.M. Screw

x6

0819

54050400R

T.

l.

Washer OR

1126

51570306B

P.

H.

Tapt

Screw x 7

0826

51100308S B.H.M. Screw x 2 1127

54050300R

T.l.

Washer OR x 2

0827

53110303E

Hexagon

Nut

x2

1131

51570306B

P.H . Tapt Screw

0832

5'1100308S B.H.M. Screw

x4

1132

54050300R

T.l.

Washer OR

0833

53110303E

Hexagon

Nut

x4

1135

54050300R

T.l.

Washer OR

1-117

53110303E

Hexagon

Nut

I

JOOl

YJ0800012

Socket, Fuse Holder

2836

51570306B

P.H.

Tapt

Screw

J003

YT0104004

Terminal,

Ant.

2837

54050300R

T.L.

Washer OR

JOO4

YT0202007

Terminal,

Output

0112

281815401

Knob

x 5

J010

YT010l003

Terminal,

Ground

0118

284925701

Lid,

For

U.S.A.

WOOl

YC0240010

AC

Cord

0119

257711803

Spacer x 3,

For

U.S.

A.

GOOl

BF1040001 Printed

Compo

., O.lf.LF +

120n

0120

282825702

Lid

FOOl

FSl

01

0008

Fuse,

lA

(ULl

0202

284926501

Indicator,

For

U.S.A.

J011

YL0102003

Terminal

0203

284926502

Indicator,

For

CANADA

J012

YT0201006

Terminal,

Quadradial

L003

LCl154004

Choke

Coil,

150f.LH

0207

284926506

Indicator

0211 257886101 Label,

UL

Caution

LOOl

LFl120024

Ant.

Coil

0212

257886102

Label,

Do

Not

Remove Cover, For U.S.A.

0213

257886103

Label,

See

Marking

on

Bottom,

0710

257816052

Bracket K

For

U.S.A. I

0714

281927103

Holder

0214

250626506

Indicator,

Do

Not

Use

as

Handle

0806

51100308S

B.H.M. Screw

x2

0219

951091101 Label,

LL

NO,

For

CANADA

0807

54050300R

T.L. Washer OR

x2

0220

282186102

Label, Caution,

For

CANADA

0808

53110303E

Hexagon

Nut

x 2

0224

951110103

Label,

UL,

For

U.S.A.

0810

51100310S

B.H .M. Screw

x2

0225

245786104

Label, CSA, For

CANADA

0811

53110303E

Hexagon

Nut

x 2

3037

951091102

Label,

For

U.S.A.

ROOl

GT0522512

Resistor, 2.

2Mn

±5

%, 'hW

0302

51122608E

T.H.M

. Screw

x4

0304

51100406S

B.H.M. Screw

x8

1133

62031650W

Lug

0306

51480406S

B.H.M.

Screw F x

4,

For

U.S.A.

0903

282715901

Drum

0432

285011202

Shaft

0904

71101569M

Spring

0433

284912001 Insulator

0915

51064019A

Screw

x2

3038

288686101 Label I

2236

138200503

Clamper

x3

0532

282626901

Protector

0604

54040402N

Spring Washer

W002

YW2849001 Wire Material

0634

51100304S

B.H.M. Screw x 2

W003

YX2849001

Wire Material

0635

56382540G

Eyelet

0613

51100306A

B.H.M. Screw x 2

0614

54050300R

T.l.

Washer OR x 2

PZOl

YD2891007

P.

W.

Board

0824

51100306S B.H.M. Screw

x2

ZZ2891

007

P.W

. Board Assembly

3137

288506450

Case

K,

For

CANADA

3141

52010420A

H. Head

Bolt

x 4,

For

CANADA

MZOl

IN1006302

Lamp

3142

54080400R

T.l.

Wa

sher

RR

x4

MZ02

IN1006302

Lamp 1202 284985101

Instructions

JZOl

YP1000113

Plug

1209

284985601 Schematic Diagram I

JZ02

YP1000113

Plug

3236

288785108

Instructions

1217

288585107

Instructions

1219

281885104

Instructions

0521 284930201 Dial 1221

257785450

Guarantee Card K

0523

282705302

Cover

1302

284980105

Packing

Case,

For

U.S.A.

0423

281810650

Bearing K

1303

284980106

Packing

Case,

For

U.S.A.

0603

516404120

Set Screw C.

P.

1305

284980102

Pack

ing

Case,

For

CANADA

2737

54040402N

Spring Washer

1306

284980112

Pack

ing

Case,

For

CANADA

0605

53l10403E

Hexagon

Nut

1308

289180301

Partitioner

x 2,

For

U.S.A.

0121 275905701 Leg x

4,

For

U.S.A.

1309

288280303

Partitioner

x 2,

For

CANADA

0310

51490410S

B.H.M. Screw F.S. x

4,

For

U.S.A.

1312

901383033

Polyethylen

Bag,

For

U.S.A.

1026

285010502

Chassis

1313

901433533

1

Polyethylen

Bag,

For

CANADA

I

16

REF.

DESIG

.

PART

NO.

DESC

RIP

T

ION

1314

1317

1319

1320

1323

1324

1332

1333

1334

901302501

102980401

273182101

281905601

952281501

952301512

ZA0200007

Z00200010

Z00120006

I

Polyethy

len

Bag

x 2

Sleeve

Silicagel

x2

Buffer

Serial No Card

x4,

For

U.S.A.

S

er

ial

No

Card x

4,

Fo

r

CANADA

Ext.

Antenna

Connective

Cord

Connective

Cord

17

..............

"1'.

TECHNICAL

SPECIFICATIONS

FM

SECTION

Tuning Frequency

Range

...............................................

.

...

88 -108MHz

IHFM Usable

Sensitivity.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..

3

,011

V

IHFMSelectivity

.............

,.,

.........

..

.

..

....

.

...

.

..

.

..

....

. .

.....

......

4

8dB

Capture Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3dB

Impage Rejection Ratio at 106MHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..

50dB

Signal

to

Noise Ratio (Mono) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65dB

Signal

to

Noise Ratio (Stereo) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55dB

Total Harmonic

Distortion

(Mono) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5%

Toral Harmonic

Distortion

(Stereo) . . .

...

.......

.

..

....

. . .

.....

..

............

..

.....

0.

8%

Frequency Response (ref.

7511

sec.

de-emphasis)

..

. . . .

.....

..

.

..

.

....

.

....

...

±

2dB

,30Hz·15K

Hz

Stereo Separation

at

1KHz

......................

...

.

........

.

.....

. .

...

. .

..

........

40dB

AM SECTION

Tuning Frequency

Range

...

.

................

.....

....

..

.......

. . .

.........

540

-1

605K

Hz

Usable Sensitivity

..............

.

....

.

....

.

...

.

..

.

.....

.

..

_. . . . . . . . . . . . . . . . . . . .

..

2511

V

Selectivity

....

.

.............

.

...........

. . . .

...

. .

..

.....

. . . . . . .

..

...........

. 20dB

Image Rejection Ratio at

1400KHz

...

....

. . . .

...

..

...

.

.....

. .

..

.

..

...

.

.....

..

....

40dB

Signal

to

Noise Ratio

............

..

.........

...

.

..

....

......

..

.

.....

.

..

.

..

45dB

Frequency Response,

-3dB

down

..........

...

........

....

. .

...

.

....

. . . .

..

50Hz-3.3

KHz

Total Harmonic

Distortion

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

..

.

..

.

... ...

..

1%

GE

NE

RAL

Power Requirements

............

. .

....

..

....

.

..

.

........

..

. . .

..

...

..

. . .

..

120 V AC

50

to

60

Hz

Power Consu

mption

.....

...

..........

.

...

.

........

__

..............

_

..

...

. . . _ 15 Watts

Dimensions -

Panel

Width

.....

.

.....

..

............

.

.....

...

..

....

.....

..

14-11/

64"-

360

mm

-

Panel

Height

...

....

.

......

..

....

. .

....

.

....

. _. . . . . . . . . 4

23/

32"

-120

mm

-Depth

...........

..

.....

........

....

..

. _

..

...

..

_

...

. . .

..

. 11-1/

32"-2S0rnm

Weight -

Unit

along

...................

.....

.

...

. .

....

..

.

........

. .

...

. 12.1I

bs-5.5Kg

-Packed

for

Shipment

..

.........

...

.

...........

. . .

..

. _

.....

..

_

...

.

17.6Ibs-SKg

* These specifications and

exterior

designs

may

be

changed

for

impro

ve

ment

with

out

advance notice.

18

-

~

7l'

-iii

MARANTZ

CO.,

INC.·

P.O.

BOX

99·

SUN

VALLEY,

CALIFORNIA·

91352

•

A

WHOllY-OWNED

SUBSIDIARY OF

SUPERSCOPE

INC.

, SUN

VAllEY

, CALIFORNIA 91352

28

49

8550

4-0

Marantz 105B User manual

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