Pioneer SA 7500 Service Manual

Page 2

SIX-7500

CONTENTS
,1. SPECIFICATIONS . . g ................. I _, . .y ........ 2
i. 2 FRONT PANEL FACILITIES . . ............ I . . ............ 3 "
3. ICONNECTION'VDIAGRAM . . . . . . .y . ,- . . . . ....... ". .. 5 ' '
f 4. 'cmcurr DESCRI,PTI'0N_.......,.r......'..r ............ 7'
"5. LEVEL DIAGRAM ' , , , ' ,
",6- V'SLCICK DIAGRAM . .j. . ,. '. . . . ,le .y. . . . . .y ..... 11"
7.,,T,DI$ASSEMBLY . . . . . . . . . . .' ..... ..,...,.. ..13
,8.» ADJUSTMENT ' ' ' I
" I 3.1, AcIjIIstanjentfarJunctioryl Point . ., . , ....... '. . ........ 17 ,
, [8.2 Adjustment Io: Idle Current . . . ., ...... . . .7 . . .y ...... '. . . . 1'8"
'9. _ EXPLODEDVIEW ........ . . ........ . ...... '. . . '. 19

10'. PARTS LOCATIONS. ..... '. . . . '. ._. ,. . . . 2'31 '

11. SCHEMATIC DIAGRAMS, PC. BOARD PATTERNS AND
' PARTS LISTS ,

' 11.1 'VMIsceIlaneousPartsand Circuit Connectmn Diagrams {.yr. . . . 31.27
11.2 Equahzer Amphfier Assembly (AWF msI .'. ..... . . . ,. . . 39' ,
11.3 ControlAmlefler AssemnyIAwG-oxm, . '. ...... . 43/ T
11.4 Power AmpII-erI Assembly IAWH 4340) . . . , .......... ' . .' . . '. 46
11.5 1 Switch Circuit 'ésemny (AWM, '72I FOWKCU and FV Types ....... v . 49, ' , '
11. 5.2 SWit'ch Circuit Assembly (AWM4 , , I For GM" Type . ' ............. 53, '
I1.6 EPCOHHBBIIOI AssemnyIAWX 4762) , . . . '. '. . . . ....... '. . . . . 59'

12.;9AcKING ..... .r . ., ....... . . . . . . . . . . . . .y 60

' NOTE' I '
' THE MODEL SA- 7500 COMES IN THREE VERSIONS DiSTINGUISHED AS FOLLOWS:

11:31:23 $33211 0'} Voltage ' Type
', , a , ,VUL USA),
ECU , ' ' may only CS; (CAnada) approved
W ,, 11ov,1'20v,*13ov, 220v, ' , [Genera éxport model.
, , ' ; and 240V (svzitghable) SEV (Switzerland) approved
' ' ' AAAAWI.
, ' enmar ,
GN ' ' 220V 13' I 7' NEMKO (Norway) and
, E1 (Finland) approved.