Pioneer SX-535 Bedienungsanleitung

<ART-053-0>

SERVICE MANIIAL

AM IFM STEREO RECEIVER

sixr535

KCU. FV, GN

'r--t NOTE:

MODEL SX-535 COMF,S IN THREE VERSIONS DISTINGUISHED AS FOLLOWS:

Round label on

rear panel Voltage Type

KCU

120V only

110v, r20v,130v,

22OV and 240V

(Switchable)

220V only

CSA (Canada) and UL (U,S.A.)

approved

General export model with

de-emphasis selector switch

SEMCO (Sweden), NEMCO

(Norway) and DEMCO (Denmark)

approved

<74E02Y61H> (v)rqoNEER=

CONTENTS

1. SPEC|F|CAT|ONS... .....3

2. FRONTPANELFACTLTTTES .... 5

3. CONNECTION DIAGRAM

4. DTSASSEMBLY. .....8

5. BLOCK DIAGRAM AND LEVEL DIAGRAM 9 ,

6. PARTS LOCATION . . .11

7. ADJUSTMENTS

8. DIAL CORD STRINGING . . .22

9. PACKING METHOD AND PARTS NUMBERS . . . . .23

10. EXPLODED VIEW AND PARTS LIST . . .24

11. SCHEMATIC DIAGRAM, P.C. BOARD PATTERNS AND PARTS LIST

11.1 Schematic Diagram . .Zg

1'1.2 Electro-parts List . . .31

11.3 TunerAssembly(AwE-046)... .....33

11.4 EqualizerAmplifierAssembly(AWF-014) ... ....40

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11.7 PowerAmplifierAssembly(AWH-0351 ... ..rtg

11.8 Power Supply Circuit Assembly (AWR-06S, AWR-0671 . .Sz

sX-535

3. CONNffi#Kffiffiru DIAGRAM

\iI

SPEAKER SYSTEMS

(A) (B)

OUTDOOR

FM ANTENNA T.TVF€ ATUTENNA AM ANTENNA

{indoor or outdoorl R IGHT [.EFT

CHANNEL CHANNEL

GROUruD

Connect to

lfround tgrminal

of turntable,

tapc dock" otc.

For 75f2

coaxial cable

TURNTABLE

R DIN TYPE

F ffi:ffi:'#!x.,o'r

t@t m

@l @l

FM DE.EMPHASIS SWITCH

ln some countries, the receiver

is dslivered with a selector switch

for adjusting the FM deemphasis

from 5O to 7Spsec. lf your unit

is eguipped with such a siwtch

on the rear pane!, and. if the high

sound rangp gives an inrpression

of rnnakness move the deem.

phasis switch to its other posi-

tion. {5 line voltage rnodel only}

LINE OUTPUT

LINE INPUT

LINE

CARTRIDGE TAPE DECK

TAPE PLAYER (open-reel, cassettel

OTECTION FUSE

TAPE DECK

(opcn-recl, cascttel

LEFT RIGHT

CHANNEL CHANNEL

t-ol

i-l

T-

4.DISAS$EMBLY

To remove the wooden cabinet, remove 2 screws each fastening either

side and lift the cabinet while sliding it backwards.

Pull off all the knobs"

To remove the front panel, remove 2 screws fastening its top and nuts

and washers holding each of BASS and FUNCTION control shafts.

To remove the bot,tom plate, remove a total of 15 screws.

^\o

Wooden

Cabi net

[s".\ffiq

Nt'

i "=b".l

Bottom Plate

7. ADJUSTMENTS

FM Section

1. Switch positions on the SX-535:

FUNCTION

FM MUTING

POWER .. ..,c

2. Connection of instruments:

FM Signal Generator (FM SG)

AC Voltmeter

Distortion rneter

Oscilloseope

3. Set FM SG to

1-00d8 output.

4. T\rne FM SG and SX-535 to dial readings of 87.4MHz (left scale end) and

adjust T3 so that signal meter makes maximum deflection

LUOVo modulation

OFF (pressed in)

Connect to FM ANTENNA termi-

nals through 300Q dummy anten-

na.

Connect in parallel to TAPE REC

jack.

(17 SkHz deviation) at 400H2 and

EiX-Ei35

10.

L2.

13.

L4.

15.

16.

Adjust T5 (lower core) so that tuning meter points to the center.

Set FM SG output to 8-10d8 and adjust T1, T2 and T3 to maximize

audio frequency output level.

Tune FM SG and SX-535 to dial readings of 106MHz and adjust TC3 so

FM SG output is

that signal meter makes maximum deflection when

100d8.

Set FM SG output to 8-10d8 and

maximize audio frequeney output level. adjust TCl , TCz and TCB to

Tune FM SG and SX-535 to dial readings of 87. 4MHz and adjust T4 so

that signal meter makes manimum deflection when FM SG output is

1 00d8.

Set FM SG output to 8-10d8 and adjust T1, T2 and T3 to maximize

audio frequency output level.

Repeat steps 7 through 10 so that output is maximized when the dial

indieates the given frequeneies.

Tune FM SG and SX-535 to dial readings of 87.4MHz andadjust T4 to

maximize audio frequency out'put level when FM SG output is 8-10d8.

Detune SX-535 so that only noise is received.

Adjust Tb (lower core) so that tuning meter points to the center.

Tune FM SG and SX-535 to dial readings of 98MHz. Fine tune SX-535,

observing tuning meter.

Set FM SG output to 60dB and adjust T5 (upper core) to minimize

distortion;

Set FM SG output to 100dB and adjust VR4 so that signal meter

readings

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FM MPX Section

o The SX-535 incorporates a PLL demodulator circuit. This adjustment

should only be made when MPX IC has been replaced.

o This adjustment should be made after completion of FM section

adjustment.

1. Switch positions on the SX-535:

FUNCTION

FM MUTING FM

OFF (pressed in)

Conneet to FM ANTENNA termi-

nals through 300O dummy anten-

na.

Connect to FM SG's external mod-

ulator terminals.

Connect horizontal input to MPX

SG's PILOT OUT termianls and

vertical input to No. 18 terminal of

tuner assembly.

Distortion meter Connect to TAPE REC jack.

3. Tune FM SG and SX-535 to dial readings of 98MHz.

4. Set MPX SG to +67.5kH2 deviation at lkHz for left and right ehannels

and FM SG output to 60d8.

5. Produce a Lissajous pattern on oseilloscope and adjust VR1 to make the

pattern still.

POWER

2. Connection of instruments:

FM Signal Generator (FM SG)

MPX Signal Generator (MPX SG) .

Oscilloscope

6. Set MPX SG to !67.5kH2

and to t7.5kHz deviation

60d8.

7 " Adjust T4 to

channel.

Nci. 18

deviation at lkHz for left and right ehannels

for 19kHz pilot signal. Set FM SG output to

minimize distortion of audio frequencies for left or right

Tuner Assembly (AWE-0461

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t-Jci cl o O o @

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