Pioneer TX-520 Service Manual page 14

6
5 4
'
t/30
L C20
Tooez
#
c43
o.47 /50
R27
47r
c r 9
zz,/so
NOTE:
The indicated, semiconductors
are representative
oneg
only. Other alternatiue semiconductors may be used and
are listed in the parts list.
L
I
OUTPUT
I
R _
Fso'-l
A T
F M
r o o I
M o 0
1- RESISTORS:
f ndic.ted in a. %W, !5% tolerarce uô16
orhêniisnoted
k : kQ,
M : M o . ( F l : r l % , ( G l : r 2 % , ( K l I r 1 0 9 6 , ( d r r l l : , 2 O % t o l e r æ
2 - C A P A C I T O R S T
Indicated in capacity kF)/voltage (v) uriless otheMise noted p : pF
lhdication without voltage is 50V except elælrolytic capacitor,
3. VOLTAGE
ï*l
I]
: DC voltage (V) at no input signal
I l--É-Vl: Signal votrase at FM 4OOHz 75kHz DEV
4 - O T H E R S :
@ : Adjusting poinl
The
2\
mark found on rcme codponent
pans indicates the im'
poftance ol the glety tactor of the part. Therefore. when replacrng,
be sre to use parts of idenlicai dBignation
This is the basic shemalic diagram, bul the aclual crrcuit may vary
due to improvemenls in desiqn
S W I T C H E S :
S I
: P O W E R
O N -
S T A N O - 8 Y
S 2 - I :
F U N C T I O N
F M -
A M
S 2 - 2 :
F M
M U T I N G
O N -
O F F
The unde.lined indicates the switch position
-
-
-
I S T E R E O )
A E L - 3 3 7
A E L - 3 3 4
D A s s ' y G W X - 6 3 8
6
5
4
LEVEL SET
ITVERTER
,""i,f }"":,èif,J |:*
!
Î l :
Q ? , 8 a s a ? z 6 s
I s a - " r u r c ' m
R 4 0 a z r
R 4 r t O *
er1, 14 zsce45a
14 ' I
Til'- *:*'^ 1lâ3-
. ! ' c l J \ -
+ + ; ' - - " *
{ 3 E r U N E D - C N )
1 2 3 4 5 6 7
q 1 3
L B t 4 1 6
S I G N A L I N D I C A I O R D R I V E R
1 4 1 3 1 2 i l t O I A