Realistic PRO-2022 Service Manual page 2

CONTENTS
Content,
S pec ifications .
BIOCkD ia g ram
Prindples of Op erat io n
G eneral Operat ioo D utline ,
Alignme nljAdjustment __ '" ,"" "" " ' " .
MemoryCneck . " " .
Recep tion Check
Trou bleshooting . .
Head phone Jack P CB (To p View s) ,
Head phone Ja ck PCB (Bonam Viewsl
Main PC B (TOP vi ew s)
Main PCB (Bottam Views)
Wi' ing Diagram
Disassem biylExpi od ed View
Elec trical Part,
List ,
Mec~a nica l
Parts List _
Semiço oo uctor Lead Id e mifieation a rJd IC Diag ram
Microprocessor (IC7) Port For mat
Append ix , .
Power Transtermor s pecrueaten
serer-ene Diagram
PROD UCT SAFETY NOTIC e
Page
z
s
,
s
t
Many eteClrical arld mechanica l parts in t his c hassis have special characl eristics Th ese enereeter-
isties aften pass uoroucec ene (he protection anorceo by the m eeroot ne cess.arily o e obtaireo by
using re pla ce me nt com ponenIS rale<! lor h ighe r volta ge, wanage, etc . Rep lacement patts l ha t have
the se specia l safe ty c ha ra cl e, istic, a re iden t ified in tlli, ma mJaI a nd it, supp lements: electrical com-
peneuts hav ing such feat ures a re identitied by a -' in tlle sclle mat ic d iag ram and the p a rts list.
Belore replacing any o f tnese corn po ne ntë . reac the pa rtë list in l his ma nual carefully. Tr.e us e ol
substitute re pla ce me nt parts t hat do
nol
have the sa më safety chara ctënsncs as sceenee in ee
part s Ii>l ma y c reate shock, fire or ot her hazards.
-,
-