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.GENERAL
ADJUSTMENTS
ADJUSTING POINTS
TPO
TPV-
TPE-
TPE.
0
0
DRIVE C.Boord lR1 and lL1
IIRR
Step
'
2
3
'2 Pay d u e a t t e n t i o n t o t h e d u m m y load, w h i c h must handle high o u t p u t power.
B B P *
Adjustment
Point
VR30.2
VR303
VR301
V R 9 0 1
( L c h )
V R 9 0 2
( R ch)
*I
R B 4i
R
Adjustment item
X@mE%@E%%
Voltage adjustment
o f regulated power
supply
P - r P 1 ) > Y a ; 3
=
I d l i n g current
adjustment
j - s - @ , - g a %
Meter sensitivity
adjustment
t x ~ i t i ' . f 2 ~
Test Point
TPV(+)-E
TPV(-)-E
TPE(+)-TPO
TPE(-)-TPO
-
T o b e performed
1 2 s
Equipment
7 9
9
Jb
*
l b
I .
3 - 7 -
Digital
Voltmeter
2l)*]bt.
3 - 7 -
M i l l i -
voltmeter
" E l
; &
st^^
A u d i o signal
Generator
R
$55
Procedure
7 2
I . L0>TPV+C . i ~ - - Z / f L 7
(r?>
F B ~ ) m t ~ f r f i 3 9 r f s
i:?dB&
i
1- VR
f r % E t 6 ,
Adjust t h e V R t o o b t a i n t h e rated
voltage reading between test p i n
T P V and chassis ground.
7 X
I . Y>TPV-CZ/T-LW~~
( Y 7 > F B - 7 ) m@E&-3R%f&
iCfd6 &
i r=
VR
&-%Ebb,
Adjust t h e V R t o o b t a i n t h e rated
voltage reading between test p i n
T P V and chassis ground.
&r;*Cdl,
VR
f r z L \ 7 l f L \ i =
HLTi=jBi&tL,
593b7mr
-9>5fbizR%@i:fd6.k
i
i=%!?&66,
First t u r n t h e V R f u l l y counter-
clockwise. Then switch o n t h e
power, w a i t for at least 5 minutes,
and adjust t h e V R o b t a i n the rated
reading.
IkHzmW+%&-h%I
Lf:i%Fm, X
~ttrm
(soow/a n,
63.3~)
i=%-9-~7ltS%v 0 dB2 fd6
dr
i
i:%E?f6,
Adjust t h e VRs t o o b t a i n a meter
indication o f 0 d B w h e n a 1 k H z
signal is applied t o t h e i n p u t and
the o u t p u t is at rated power ( 5 0 0 W
/8 ohms, 63.3 V).
after step 1.
g e m
Rating
+I
2 0 v
+ 1 V
-1 2 0 v
+Iv
5 m V -
7 r n V
$ 9 -
0 d B
Meter in-
dication
O dB
t i k 4
Renarks
a1
I
cnf%i:
77fd:
j
*
1
8x71
m a .
7' 2
-
i :
;it
* 2
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