Clarion PU-9907A - Page 5

MADJUSTMENT:
CTEM
|
TEST-POINT
PROCEDURE
I.CONNECT
THE
DIGITAL
VOLT-METER
10
TP3
AND
TPA.
OV
|FT402
9
\NPUT
THE
98.
1MHz/30dB
SIGNAL(no
MOD),
AND
ADJUST
THE
READING
OF
DIGITAL
VOLT-METER
TO
O%20mV
BY
IFT402.
I.
INPUT
THE
98.
IMHz/65dB
SIGNAL
(400Hz,
30%
MOD).
[OUTPUT
:0dB(0.
245V
Limiter
VR403
9.SET
THE
SSG
OUTPUT
TO
10dB,
AND
ADJUST
THE
OUTPUT
LEVEL
TO
-3dB
BY
VR403.
1.
CONNECT
THE
TP11
TO
THE
GND.
SD
VR404
9
INPUT
THE
98.
1MHz/24dB
SIGNAL(400Hz,
30%
MOD).
3
ADJUST
VR404
SO
THAT
THE
VOLTAGE
OF
TPS
IS
IN
THE
RANGE
OV
TO
5V.
1.
CONNECT
THE
DIGITAL
VOLT-METER
TO
TPO.
s-meter
VR102
2.
INPUT
THE
98.
1MHz/35dB
SIGNAL(no
MOD).
3.
ADJUST
THE
LEVEL
TO
2.4+0.1V
BY
VR102.
1.
INPUT
THE
98.
IMHz/65dB
SIGNAL(7KHz
30%
MOD).
SASC
VR402
2.SET
THE
OUTPUT
TO
OdB
BY
VR402
FULLY
COUNTER-CLOCKWISE.
(0.
775V)
3
SET
THE
SSG
OUTPUT
TO
43dB,
AND
ADJUST
VR402
SO
THAT
THE
OUTPUT
LEVEL.
Is.
=2dB.
0.
SET
THE
STEREO
MODULATOR
TO
THE
L
OR
R-ch
AND
ADJUST
VR401
SO
THAT
THE
MAXIMUM
SEPARATION
IS
OBTAINED.
(MORE
THAN
20dB)
T.
CONNECT
THE
MILLI
VOLT-METER
TO
TPS.
CW
VR801
0.
INPUT
THE
98.
1MHz/65dB
SIGNAL(100Hz,MONO)
AND
ADJUST
THE
LEVEL
TO
1.77V+1dB
BY
VR801.
7
T.
INSERT
A
TAPE
SPEED
TEST
TAPE
(3000Hz).
2
ADJUST
THE
TAPE
SPEED
TO
2955~3090Hz
BY
TR1O1.
VR501
TINSERT
A
DOLBY
LEVEL
TEST
TAPE
(400Hz-200nWb/m),
CONNECT
THE
Dolby
NR
|
VR502
MILL!
VOLT-METER
TO
TP1(L)
AND
TP2(R).
2.
ADJUST
VR502(L)
AND
VR501(R)
TO
OBTAIN
AN
OUTPUT
OF
388mV
+
1dB.
ADJUSTMENT
POINT/TEST
POINT
[INPUT
THE
98.
1MHz,
CONNECT
THE
OUTPUT
OF
A
STEREO
MODULATOR
10
Separation
VR401
THE
EXTERNAL
MODULATION
TERMINAL,
AND
INPUT
A
65dB
SIGNAL.
Tape speed [R101
BOTTOM VIEW
VR404
\FT402
VR401
VR
102
a a an, [
VR801 —
eal
——e
MAIN PWB
MAIN PWB
PU-9907A