Aiwa HS-TX406 Service Manual page 14

ADJUSTMENT
6
A
MAIN C.B
SFR 1
2
*
4 2
TP1(VT)
*
L101
(BAR-ANT)
NOTE :
: On the other side of the pattern.
*
<RADIO SECTION>
1. AM IF Adjustment
L105 ....................................................................... 450kHz
2. AM VT Check
Settings : • Test point : TP1 (VT)
Method : Set to AM 530kHz and check that the test point
is more than 0.8V. Then set to AM 1710kHz
and check that the test point is less than 8.7V.
3. AM Tracking Adjustment
L101 ....................................................................... 630kHz
VC101 .................................................................. 1440kHz
8 8
1
*
VR1
VOLUME
L102
VC101
*
PHONES
L103
L105
J1
4 1 6 7
P HEAD
3
FWD
7
4. FM VT Adjustment
Settings : • Test point : TP1 (VT)
• Adjustment location : L103
Method : Set to FM 76MHz and adjust L103 so that the
test point becomes 1.0V ± 0.1V. Then set to
FM 108.1MHz and check that the test point
is less than 8.5V.
5. FM Tracking Adjustment
L102 ..................................................................... 76.0MHz
25
<TAPE PLAYER SECTION>
6. Tape Speed Adjustment
Settings : • Test tape :
• Test point :
• Adjustment location : SFR1
• Tape/radio :
• S-BASS :
• Volume :
Method : Play back the test tape and adjust SFR1 for
3000Hz ± 10Hz. Then confirm WOW is less than
0.50%.
7. Azimuth Adjustment
Settings : • Test tape :
• Test point :
• S-BASS :
5
• Tape/radio :
3
• Volume :
• Adjustment location : Head azimuth
Method : Play back the 8KHz signal of the test tape and
adjust the screw so that the output becomes
maximum.
8. Maximum Output Power Adjustment
Settings : • Test tape :
• Volume :
• S-BASS :
Method : • Short the shorting point
TTA–100
(TAPE CENTRE)
Phones Jack (J1)
TAPE
OFF
NON-CLIP
(MAX -10dB )
TTA–330/TTA–420
Phones Jack (J1)
OFF
TAPE
MAX
adjustment screw
TTA–210
MAX
ON
and .
1 2
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