Marantz SR-1100-L Service Manual

SERVICE
MANUAL

.4r;

MARANTZ

DESIGN

AND

SERVICE

superior

Using
l\,lARANTZ
famou s.

parts
National

puter
shoLlld

mation.
bLltlon
and orepared

ORDERING

phone
parts

The

Direct

cost

your MARANTZ

for

parts

terminal

exceed

When

center.

orders

forms

order

following

consumers

of the

Parts

desiqn

parts can

Depot

can

and

available

our

the order

hard copies come directly

As

shipment

for

PARTS

eliminate mail delays,

will

which

information

1. Complete

2. Complete

3. Complete
lModel number

4.
Account number

5.

wilL

and shiPP ng

grade

and selecte.l

insure that

in

California.

qulckJy

is

and

are available frorn our National

must be supplied

provided

be

high

your

stereo are

The

determine
stock, we
placed

and confirmed, the computer simultaneously

placed

on the

address.
part

n um bers-

description of

for

with

components,

t!,4ARANTZ

generally

sales

usually

which

(for

available withln 72

professionals

the availability and

can

from the computer to
first

available

and we encourage

to ellminate

Parts.

part

account customers only).

the

current

l\ilARANTZ

product

instantly

is required

r€ta I

will continue

take

who

price

provlde

carrier ior dellvery to

the use of this metho(l. lf

Parts Depot located

delays in

(indicate

prlve

has created the ultimate

pefform

to

hours throughout the

your

lnformation

an alternate replacement

the national

processinq yo(rr

MARANTZ).

quotation

immediately refer to thelr own

call

yoLt

reqLrire. lf

generates

partsdepot,

you

at the following addressl

orcler:

on available

in

stereo sound. Only orlginal

to the specLfications

nation

via a

for

some

part

"hard

your

you

parts

or current

copy" orders

requested stock sassembled

order by

in order to advise them

{or which it is

toll-free llne to our

reason,

mail, use IVIARANTZ

desk top com_

your

order

delivery infor'

at the dlstri

ol thc

ORDERING

ordered

be

S.A

locations are

requirements,

location listed for

also

Australta

Street

lla

rope,

Eu

B russels

above

the

service

no

is

PARTS

Louise

OVERSEAS

rnaV

Parts

Maranfz

Cross

32
Brookvale,N.S.W.2100
Austra

Maran?

Avenue

326,

Boite 32
1 050
Belgrum

All of
con{iguration
there

from

fo lowing overseas

the

Marantz

Max'Planck StraRe 22,

D'6072Dreieich
West Germany

Marantz Belgium

qJe

45

1080 B ru ssels

Belgium

fu ly

equipped to

is necessary

it

your

rrr-rr-alrt_-

addresses:

Germany Gmbh

ALg-srp

Van Trnc 4

take care of

you

that

country,

contact the service

p

ease conlact the nearest facility for

Marantz Audio U.K.. Ltd. Marantz Svenska

193, London Road

STA

United K

Marantz France

Rro

92600

France

yolrr

tota service

lN

l\4idcllesex

ES,

ingdom

rard

Ber

Asnieres

needs.

facility ln

Dal

s.r

Because

your particular

various

necessary asslstance.

the

Franzengatan 6
10425

S\,veden

Marantz

R efstadaileen 13
Oslo
Norway

countries

country.

A.B.

Stockholm

Norske A.S.

5

have differing

In lhe event that

1.

2.

BOARDS

P.W.
TEST

EOUIPMENT

REOUIRED

FOR

TAB LE O

SERVICING

F CONT ENTS

...

'

ALIGNMENT

J.

VOLTAGE

4.

q

DIAGRAM

Main

5.1
Antenna/Osc

5.2

Signal

5.3

Tuner

5.4
switch

5.5
Speaker

5.6

Power

5,7

BLOCK

6.
EXPLODED
TECHNICAL

8.

9.

SCHEMATIC

PROCEDURES

CONVERSION

AND COMPONENT

Power suppty

&

Amp.

{PBOO)

Tuning

&

{P100)

Assembly

Switch

DIAG

Schematic

Terminal

(PUOo)

RAM

VIEWS

SPECIFICATIONS

DIAG

Schematic

(PX00)

LED

(PS00)

(PTO0)

. .
AND

RAM

Diagram

Diagram

Diagram

Diagram

.

LOCATIONS

(P700)

Schematic

Diagram

Schematic

and Component

and component

and Component

and Component

Diagram

and Component

PARTS LIST

Diagram

Locations

and

Component

Locations

and Component

Locations

Locations .

Locations

.

Locations

.

Locations

'

- - " ' 6

"'---

" " "

"

" " '

" " "

. .

"' 6

8

I
10
10

l0

13

26

1

"-

a

INTRODUCTION

't.

P.w. BoABDS

service

This

Warranty Stations
lMarantz

Servicing

manual
perienced

carefully.

good understanding

a

parts

The

parts

may
description
tained

TEST

2.

table

This

Alvl Signal

manual

SF1

lvlodel

information

intended

are

technician

atternpt

No

{urnishes

list

ordered

be

included

is

through

local

EOUIPMENT

the

lists

Item

Generator

Test Loop

FIM Signal

Oscilloscope

FrequencY

Circuit
DC

AC

Generator

Cou

Tester

VTVM

Wattmeter

AC Ammeter

Voltmeter

Line

Variable

Shorting

Output

Autotransformer

Plug

Load

r0.5%, 100w)
Output

10.5%,

Load

100w)

prepared

was

and contains service

100L

Stereophonic

and

for use by the knowledgeable and ex

All instructions should be

only-

should be made to

of the operation of

information by which replacement

Jrom the N4aranlz Company. A simple

parts

for

suPPliers

test equipment

nter

for

use by Authorized

information for

Receiver.

voltage

which

REOUIRED

required for servicing

Sound

Tektronix Model T932
Philips l,.4odel 3232

Fluke Model 19004

Flukp l\,4odel

f\4odel 313, Triplet Model 801

included in this

data

proceed

the receiver.

can usually be ob'

FOR SERVICING

Manufacturer and Model

Technology

8000

Simpson Model

Commercial Grade

Simpson

Model 1359

Superior Electronic Co.,
Powerstat

Use

across center
Commercial Grade

Commercial Grade

l\4odel 1 168-10A

phono plug

pin

read

without

the N4odel SR

No.

"Dig.tal"

Simpson

1379

(1-10A)

with 600-ohm

and shell

As can be seen from the
l4odel SR1100L
mounted
square enclosed by a bold dotted line on the circuit dia­gram.

1. Tuner . . - mounted on P-W. Board P100

2.

3. Volume/Balance Push

4.

5. Tuning LED . . . .. .. mounted on P.W. Board PX00

6. Antenna Coil mounted on P.W. Board PB00

7. Power

on

Main

Amp/Power Supply

Speaker

100L Receiver'

1

cons]sts of the

printed

a

Terminal

Switch

Signal
Use wlth
Signal source

Stereo
shootrng

Distortion measurements
Sinewave
Voltage measurements

Waveform
ASO

MPX Oscillator adjLrstment
Trouble shooting

circuit

. mounted on

Switch

. . . . mounted on P.W. Baord

source for AM alignment

AM

Signal Generator
for FM

separation alignment and troLrble

and squarewave signaJ sourc-"

analysis and trouble

alignment

Voltage measurements

lvlonitors

lMonitors amplifier
cond ition

Monitors
am

Adjusts'evel ot

Shorts
p

rcKLr

Provides 8-ohm
termrnar ron

Provides 4 ohm oad for amplifier output
rermtna( ton

primary power

potential

p

lifier

pr

amplifier input to eliminate

p

load Jor

diagram the chassis of

circuit

following

board

mounted on P.W. Board PS00

mounted on P.W. Board PU00

Use

alignment

lAC)

units. Each

is described within the

P.W. Board P700

PT00

shooting and

(VCO

)

(DC)

to amplif

output

of

mary

under short crrcu t

primary power

power

amplifier

ier

to

to dmp

norse

output

if er

unit

SRl1OOL

TUNER

BOARD

P.W.

g

@

Mwlw

@@

[.]

I l@*

Mw

Lw

I I

wl--lw

Figure 2.

Adjustment

Point

Locations

3. ALIGNMENT

PROCEDURES

A dummy

3.1

FM Alignment Procedures

resistor

47 k-ohms

of

must

(Function

be connected across the tuner output terminals

"FM"

switch in the

position)

Flvl RF Alignment

St€p

I

2 108.2 MHz

4 106 MHz 106

Signal So0rc6

Conneclion

generalor

RF

terminals through
matching network

(300
lMaintain

below limit.)

to

ohms, balanced)

RF lev6l

Signal

87.4

MHz

90 lvlHz 90 lvlHz

5
6 Check overall response curve and repeat above steps as

1 No signal

g€nerator

8

10

RF
300pV, only
outpul lo
terminals th.ough
matching

ohms, balanced)

{300

1mV

Step

Flvl

antenna

network,

{or

10)

98 MHz

98 lvtHz 98 MHz

Indicttor

Connoction

channel output

Repeat

steps 1 to

"0"
or DC current

merer in 100pA

J2O1

Distortion meter

L or R channel

ourpur

center

J2O2

and

meter

4.

necessarv

to

before alignment.

rhe

oigitll

s€(

Roadout

Frrquonry

Tuning capacitor
minimum closed.

Tuning cepacitor C

M

Hz

98 MHz

maximum

sensirivaty,

to obtain

Adrurt

for maximum

L106

outpui.

maximum

118lor

outpur,

for maximum

L103

L101,

RF. TRIM. CAP.

ANT.

maximum output,

tor

primery

L2O1

the meter indacales

thal
its center or

"O".

(RED

L201 Secondary
(BLK)

R219 so that

may light 5

LED

core

may read

core)

for minimum

sign6l strength

so

core

distor-

points.

3.2 Muting Circuit Alignment

Stop

Multiplex Alignment Procedures

3,3

Stop

2

Signal Source

Connection

generator

RF

output to

terminals through
matching network

(30O

Sign.l Source

Connoction

generator

RF
antenna termrnals
through matching

network

balanced),

Fl!4

stereo simulator
RF level
modulation

FM

ohrns,

(300

and 1 0096

12.5pV
antenna

balancedl

to Flvl

ohms,

with

{pilor

1mV

9%)

Sign.l

98 MHz

(Function

Signal

left

Stereo,

(1,00O

Hz)

Stereo, right

Hz) channel output

{1,0O0

Pilot

only

switch in

lrdicator

Connection

channel output

"FM"

the

Indicator

Connoclion

Frequency
to J301

VTVM

output

counter

to right

Set ths

R€adoul FrGqu€ncy

98

position/Mode

$t

R@doui

98 MHz

98 MHz

Digiral

MHz

switch in the

rha oigit.l

Frequency

tor 12.5pV

F.213
threshold

adjustment

this

pushswitch

muting

"oN".)

"STEREO"

so that

R304
counter
76 kHz.

lor maximum

R331
outpul and

in both channels.

tor minimum

R307

output and

both channels,

Adiun

(During

level.

turn the

position)

Adjust

Frequency

preciselY

may

same separatlon

output in

same

re6d

3.4 AM
'1

. AM

Alignment Procedures

(Function

lF Alignment

iwitch in the

"AM"

position)

Stop

1

Sign.l So(l

Conn6ction

Sweep
OSC Variable

rc.

generator

Cap.

to

2. MW RF Alignment

Signal

St.p

Apply the signalto
the AM bar antenn€
from rhe RF
using

as

4 1,400

Conmction

the test

per

the

Sourca

generator,

loop.

Figure

2.

Sign.l lndicator

450

kHz marker Oscilloscope

Signal lndic.tor

kHz

520

1,630 kHz

600 kHz

Connsction

Connoction

channel

to T.P. Ouiet

Reado0t

Tuning capacitor
minimum

Tuning capacitor

output

kHz

Rep€at steps 1to 4 d necessary to obtain maximum

Test Loop

Al\4

Loop Antenna

Sor Dbl

Pointer toi

point

on

S€t tho Dioir.l

Fr€qu6ncy

closed.

kHz

600

kHz

1,400

sensitivity.

band

LA02 & LAO3

ano symmetflc response.

for maximum output,

LB04

CBO2 for maximum output.

for maximum output.

LB01

for

CB01

Adiun

for m6ximum

Adjust

maximum output.

LW RF Alignment

3.

Stop

I

Sigrul SoU

C,onn€ction

rce

2

g€norator

RF

Alvl an'tenna

4

through

IHF

to

t6rminals

dumrrry

5 450 kHz

Signal

FigurB

3. Application

Connection

of AM Signtl

lndic€tor

145 kHz

kHz

380

't70

kHz

kHz 350

350

Rep€at

steps

1 to 4

necossary to obtain maximum senritivity.

as

ohl

Set

Pointor to

'l45

kHz

tuning

kHz with

380
tuning

wirh

gang

gang

closed.

op€n.

Adjun

L803 for maximum output.

for maximum output.

CB02

170 kHz LB02 for rmximum outpul.

Tuning

kHz

geng

clos6d. LB05 for minimum output.

CBo1

for

maximum

output.

4. VOLTAGE

To

convert the unit

change

position

the

CONVERSION

to a djfferent

illustrated

as

power

in

the drawing

source

below.

voltage,

CAUTION: DISCONNECT POWER

AC OUTLET
AGE. DO

AGE SELECTOR

BEFORE

NOT DISASSEMBLE

ABSOLUTELY.

SUPPLY CORD

CONVERTING

THE

FROM
VOLT.
VOLT-

(Note

on safety: The

numbers

FTZ REGULATION
Instruction

Achtung

for

the use in the range

fiir die Leute,

Sollte das Gerat auch
bitten

wir, den Bereich

zu korrigieren,

dass er den Bestimmungen

220v

(T)

V€rsions

parts

marked with A are important

without

die in dem

fiir Frequenzen

durch Nachstellen

fail.

)

other

than specified in FTZ

Gebiet wohnen,

auszerhalb

des Kernes

entspricht.

?2AV

parts

on the safety. Please use

codes,

wo die FTZ-Bestimmungen

des in den

in der

FTZ-Bestimmungen angegebenen

Oszillatorspule

-

vorherschend

(in

der Abbildung

the

parts

Figure

having the

Voltage Convstsion

3,

designated

sind.

Bereiches empfangebereit

mit

"FTZ"

gekennzeichnet)

parts

sein,

so

DIAGRAM

5.

AND COMPONENT

LOCATIONS

Main Amp. &

5.1

Woo

I MAIN

AMP

POWER

Power

ond

SUPPLY

c 71rl

3,3/fiv

Supply

(P700)

QKO3

Schematic Diagram

Q723 Q705

and Component Locations

POWER

SUPPLY

R 7t7
3,3

RzrB

r

3,3x

oNol

QNO5

c713
roop

e7O9

,\

+t,p v

fr

o7r r 0715

czrq roop

QTIO O7l4

07t3

R736

330

(

lw)

5.2 Antenna/Os0

(P800)

Schematic

Diagram

and

Component

A

(3W)

R80t

39

Locations

j

j<

1

tT

-'ll

l--a I

'l

I

-l

Tuner

5.4

l-----

PIOO

I
I

(P100)

TUNER ONd

Schematic

PHONO

Diagram and Compr

AMP.

FM

FRONT

5.3 Signal
Schematic

&
Diagram and

SIGNAL

Tuning LED

Component

to,8v

toav

ov

t26V

il,8v

Ot/

TUNING

ond

(PX00)

to,w to'av ov ov

to,8v

OXOI
OV OV

LED

Locations

I

5,2V 5,7V

5?V

ASSY

Lzv ov

48V 2V

t,4v

t3.5V

+

t,sv tzv OV

o7v

4,5V 54V

3.4V

g,OV

/3V 2'6V

OV

OV OV

I4V