Pioneer SX-82 Bedienungsanleitung

SERVICE TVIANUAL

AM IFM MULTIPIEX RECEIVER

sxrg2

pINNEER ELEGTRNNIG GNRFNRAjTINil

TOKYO JAPAN

*i,s,

CONTENTS

I SCHEMATIC DIAGRAM

2 LAYOUT

3 BLOCK DIAGRAM

4, ALIGNMENT INSTRUCTIONS

5. DIAL CORD STRINGING

6 PARTS LIST

, 7, TROUBLE SHOOTING

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BLOCK

Vsoz l/2 6Ae8

DIAGRAM

T5oi Ds 0A8lx4

38 Kc

67(c SCA

F I LTER

Ut'tt

VO tTAG I

strtcI0R

v.ot '/2 6cG7

CHANNEL

/x-nr-

I uo.

| ,o".

I or*

(x-rn r-

I uoo

I to*

l. aux

CHANNEL

,,r" I

(Pr I

vt t2ax7 I J

.oualrzeR l- L"

IEF

rir V6.V?7189-A

NFB

V5 64N8

CHANNEL

--{do#,u'

i u (sPEAKER)

I PHASE

(rru rr,lnx oureur)

(auorb ournrr)

v! t/z l2ax7

T2 vB 6846 lOTMc Ta

RATIO DISCRI

ANTENNA

3000

ANTENNA

2NO IF

AMP

W@*R6f 5ot u.,li"ou"^ f sog Y/

I m lrd]^Tsiii

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tAt rrroror6ft,'

(sceil lsos\v,/

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(A\vcs m)

\sJ

lr2

ItRRITi

r00P

TNTIIII{A

B HH8

gtrEima:':*Bj. a:;8

SEPARA-

TION

CONTROL

vztzax? 6Fx-i)

ryr4-l i/= |

ItolrrM E I

| | on-o.t

mtDNEssT

I r--l

Ei i I

r, - - - -r sEr-ec roR I

I LEVEL coNTRoL I

FM Vro 6CW4 Vtr 6AQ 8

88-lo8Mc T----.l - !

TONE

CONTROL

AMP

lssalrt-- j 98 7

VN 6AQ8

VE6BA6

535- t605rc

lO.7Mc

l15/23OV 50^60cps

ATIGNMENT INSTRUCTION

Please read these Instructions with extreme care before

attempting alignment.

+ Test Equipment

1) Stand-ard- Signal Generator 2) VTVI,{" DC, AC 1) Aud-io Oscillator

4) Oscilloscope 5) fl,[ Multiplex Generator

+ Attention on Alignment

1 ) Signal Generator Input: 1n every case , use the minimum

generator input that will- obtain a satisfactory output ind-ication.

2) \Mhen connectlng the test equipment to the input, use the shield-ed

wire as short as possible"

+ VTVI\/I and Oscilloscope should- be connected. in parallel at the output.

+ Alignrnent of 4lll Secti_on

+ Note: Posi-tion of Switch; SEIECTOR AIVI

MODE STEREO NOR]VTAL

Position of Volume Control; I\II1IIIMUM

-B)

I Signal Generat

cmutoc I

LJ rl:tr *.1 I ------ C oupl lng

Pin 1 of V-

( 6ra6 )

a ',

,l;

\ -.

then ad-just to €

to BROAD, ad-just

SHARP position.

Pin 7

(5m6)

of Vrn

;or fnpu

Freq.

455kc

rst set

;et a cu:

to fig

455 kc

;---'

Mod-u

| 1kc

I tV"

the t

rve si

" 1-B"

lkc

1q"

Dial

setting

Point of

no inter-

ference as

near as

515 kc

*"d *idth =

milar to f1

From step 4

Connect

VTVM

Audr-o

output

12'

elector F

9,1-A , el

, (sl-e)

T,-, r-

a" tJ

top and-

bottom

Al ignment

Ad-just lRemarks

Ad-just to

ge t IIT"AX "

Ceflection

witch (sl-e) to SHARF,

ter that set the (Si,-A

should be set at

Tt-l

top and

bottom

lAntenna termina

, I through dummy

+ I (o.t uF)

b,OU .[cc il 500 kc nL1l'L12

and T-

)

51400 kc

5 ,-r-

" I1400kc I "

L no further irnlrovement i

CT- , CT,

iand CT-

-s -possib Le

Noter 1) Posltion of Switchr SELECTOR FM

AFC OFF

2) Position of Volume Controlc IVIINI1vIUM

1) Connect VTVIVi and. Oscil-loscope in parallel at STEpS 9, 10"

STEPS SLgRal. Generator Input _

Coupl ing I Frequency ii\,lod_u. Dial

Setting Connect

VTVl\{ ". . Alignment

Adjum

IPin I

'l'4

( 5ra6 )

:5':

10"7 mc

100 d.b None Point of

no inter-

ference as

near as

BB mc

DC VTV]!,T

to Pin 5

of TA

-T ',5'.

Top of

-4 Ad-just to get

zero volts

(between pos"

and- neg"

read.ing)

2il 10,{ mc

100 d.b il il il Bottom

of T.

-f

Ad-just to get

Maximu:n

def lection

*t""t t

I 11mc

I roo d-b

IEPS 1, 2

r,nd- 1

everal tim

Uto get

Lil

a st_mt-Ia

Ad-just to get

Maximu-m

d.efl-ection

(Neg. read-ing) _

curve as Fig.2

Pin I

v__

(eru5)

tri:

10" 7

100 mc

mc il il

DC VTVI\I

to Pin 2

of T-

tibl

Top and-

bottom

of T-

)

Ad.just to get

Maximum

d.ef lection

(N"g, read.ing)

6Pin 1 of

oLz

( 5ra5 ),1

10.7 mc

70 db il il il Top and

bottom

of T^

L-CL

t-7

IFin 7

vtt

( 5nqe )

''.9

10"7 mc

60 d.b

il il lt Top and-

bottom

of T-

L-a

BRepeat STIEPS 5, 5 and- 7 several time to get ?" simil ar crrr\ro 2s ficn 4

9FM antenna

terrninal 90 mc

20 db lkc

toTi 90 mc AC VTWI

to aud.io

output - .

/ nt

tl)

Lr' "j

&L,

Ad-just to get

Maximirm

d.ef lection

10 il 105 mc

20 d_b It f05 mc il

ttr'

cr^ &

nm ll

11 Repeat STEPS 9 and_ 10 mtil no furth l-mprovemen

er provement 1s possible

Noter 1)

Position of Switchc SELECTCR FM IPX

il- AFC OFF

Position of Vohl_nre Controls IviINIl,[Uftl

(main volume control)

couple VTVM and- Osciltoscope in paratlel so as to observe

ripples simrrltaneously "

At Step 5, I megohm is ind"ispensable in coupling VTVTvI to

pin 4 of T.,Cj in series.

5) At steps 6 and- 7 , apply the composite signal to Flli antenna

terminal and- measurerrent must be mad-e on each right and- left

channel separately"

STEPS Clrcuit to

be ad-justed. _ Signal Generatol _lqpgj--_

Input

Signal

C oupling lilod-u" Connect

VT\|M _ . Aflgnment __

Ad-just i Remarks

11B 1- ^

-f! U

Separation

Coil

Aud-io

Oscillator

to Y-.

, "'1,

18 kc

2OO mv

( rros )None

to junc

tion

Ccno &

T_^^

L^( )')

Bottom

't _ __

'ho I

Ad"just to get

l/lax" d-eflectio

Position of

VR-n-r:

)w!.

lVlinimuin

25l kc

Trap Coil il .^r- ..

,l\l ,

'.t'

6l kc

lOO mv

(rms)

ll n

" 5tl .ri.

tA-,

', )'

Bottom

" 'o,

Ad-just to get

Min. def lectio

Position of

VR-^. 3

)UI

n/iaximu-m

318 kc

Trap Coil il

-1\ /t

' ..+

1B kc

10v ?t '..rg

Bottom

L_^_

,ur

Ad-just to get

l.,{ininiu-rn

d-ef lection

Lil

.b,' il il c_ _

L-'-) I

)Lr

Bottom

L-^

ta4

)Sub Carrier

Circuit

I\rlultiPlex

Generator

to Fli

Ant enna

terininal

bO db o1'

L9 kc

Pilot

signal ra"k

Pin 4

rtt

'joj fT;r

fllot

- EO2

ry)"-

- 501

Ad.just to get

Max" d-eflectio

fron Tq.,< to 5

)w)

and 501 revers

repeating seve

times

6Pilot

phase It

50 d.b

Composite

Signal

each

channe I

19 kc

Pilot

lO"/" &

Sub &

iviain- ^.';

J-KC )O"/o

" jzL

X-' or

r ".\;

'{r '

' *t,

- 501

Ad-just to get

iWax. output an

l'fin, d-istortio

Confirm each

channel

Separation

Control

Repeat STI

"--

LJ UUJ- UU

ind-i-cator

light

6 and 7

Tre

several t

1A d.b

I O lrn

pilo t

MAO

L9 kc

I ( \u/^

il trp

"'5c1

un5ot

Ad-just -i;o get

I',{in. outpu-t of

reverse channe

Confirn each

channel

Ad-just to glow

1{t501 when 19

Filot signal i

a)I

ol rr

ral

Yrt

signa,l :appliecl

lrJ

flt+

l(L

()

lrJ

()

B(B

(+)

(-)

trJ

(,0

R t-r

ROAD) lo.4 lo 3 ll

FREQ. DEVIATION

IN MEGACYCLES

Fis .2

FREQ. IN MEGACYCLES

CHARACTERISTC

Fig,3

A(SHRP)

-l"J I

' KC'FM sELEcrlvlrY

455

FREQ. DEVIATION

IN KILOCYCLES

Fig,l

DIAL CORD STRINGING

I START

9 END

CONNECT ONE END OF DIAL CORD

TO SPRING AS SHOWN

BELOW STRING AS INDICATED

BY ARROW KEEP A MODERATE

AMOUNT OF TENSION ON CORD

THROUGHOUT STRINGING PROCEDURE

TIE END TO SPRING

DR IVE SHAF T

3 TURNS

D-5

PO I NTER

PAETS LIST OF SX-82

CAPAC ]TORS

fn uF , IV" tolerance for all f ixed- capaci-tors,

unless otherwise noted." p = lluF

Synbol

cL e2

C1 ,4

C5 ,5

C7,B

C9,10

c1l,12

cl1,r4

c15,18

c15 r 77 ,79 ,2O ,

2I,22

c21 ,24

c25 ,26

c27 ,28

c29

c50

ClL

c52

c11 ,54

c15 ,16

C37 ,18

c19 ,40

C4I ,42

c41 ,44 ,45 ,45

c47

C4B

c49

c50

c51

c52

c51 ,54

c55

c57

c5e,59

c50

c51

c52

c61 ,64

c65

c56

c57

C5B

c6g

c70

c7t

c72

c75 ,7 4,75

c76

c77

C7B

c7g

CBO

CBl

Description

Mica

0i1 paper

Mica

Electrolytic

Mylar

0i1 paper

Cerami-c

Vacant

0i1 paper

lVlica

0i1 paper

Mica

0i1 paper

Mlca

0i1 paper

Electrolytic

Ceramic

lVlylar

Ceramic

Cerami-c

Ceramic

0i1 paper

Ceramio

Cerami-c

Ceramic

Cerami-c

Ceramic

Mica

Ceramic

Mi-ca

Cerami-c

Vacant

0i1 paper

Ceramic

Cerami-c

0i1 paper

Ceramic

5oop

]OOp

0. 02

llOOp

0.1

0. 02

5op

0. 05

2OOp

0,05

lOOp

0"01

lOOp

0"01

o.o2

0"005

)

JOp

ruup

1op

0"005

0. 05

0"0c5

0"001

0"005

lop

1op

0. 002

0"01.

0.01

5op

1OOp

0"01_

5op

0. 01

0. 005

2OOp

ICOOp

2OOp

0. 05

1op

45op

lOOp

2op

0" 05

1op

{OOv

{0Ov

1)Ov

{OOv

{00v

{O0v

{00v

{OOv

{0Ov

{OOv

{COv

1)Ov

{O0v

{OOv

{O0v

{OOv

{O0v

{OOv

{0Ov

{OOv

{00v

{OOv

{0Ov

{OOv

{00v

{OOv

{O0v

{OOv

{OCv

{0Cv

{0Ov

{O0v

{OOv

{0Ov

{OOv

Part No "

)q"

2q"

2q,

2q'

2q,

:_q"

2q"

2q,

zd^

2q"

N-rr0

CB2

CBl

C84

NQtr

cB5, 87

CBB

CB9,9O

c9I r92 rgl

cg4

c95

cg5,g7

C98,99

c100

c101

c102

Crc1

cl04

c105 ,to5

Lq" t olerance

k = kilohm,

Syrnbol

R2 rJ

R5 '5

R7, B

R9,10

Rl1

Rl2

R}'

CT4

R15 ,15

R17 e 18

R]-g,2C

T?'I CD

ILLL, LL

R23,24

R?_5 ,26 127 ' tO

pra )a

rLLvgL/

RlI,12

R11 ,14

R55,15

Rt7 ,38

R1g u 40

R4L ,42

R43

R44

R45

R46

R47 ,48

R49,50

Rrl-,52

R55,54,55 ,56

P,57 ,58 '59 ,50

R51

R52

Ceramic

C eramic

Ceramlc

Ceramic

Cerami-c

0i1 paper

Electrolytic

Electrolytlc

Cerami-c

Mi-ca

Ceramic

RES ISTORS

j watts, r-rnless

m = Megohm.

lescriptlon

Composition

Composi-tion

Composition

Carbon

Comp 'sition

Carbon

Composition

Carb on

Composition

Carb on

Composition

Composltion

C-R network

Composition

Conposition

Composition

Conposition

Carbon

Composition

Carbon

Composition

Composi-tion

Composition

Carbon

Composition

0" c02

5op

lop

0,01

0,002

c.01

0. 002

0,002

40-20-20

AA-2a-)^

100

5C0

100

)

2OOp

0. 01

2q"

2q,

2q"

{OOv

{00v

{OOv

\CCV

{OOv

45ov

15ov

2JOv

25v

lOOv

{O0v

{OOv

otherwise marked_ or not ed_,

Part No.

47 0k

220k

/'7 ^l1-

+/wr

100k

1Ock

I tr/1]-

-L -, Vlr

100k

150k

100k

200k

ca^

a- o CIIL

100k

L7k

I I --

11ak

100k

2,2m

^ .)t-

aoLr,

100k

5tk

220k

47 C ohm

100 ohm

47C ohm

100 ohm

220k

47k

100k

o D1.

C- c Lts

5/"

2C4"

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