Aiwa CSD-ED78 User Manual

ELECTRICAL ADJUSTMENT
PRACTICAL SERVICE FIGURE
<TUNER SECTION>
6. DC Balance /Mono Distortion Adjustment
-1, AM IF Adjustment
Settings
:
● Test point: TP2, TP3
L814 ................................................
450kHz
● Adjustment location : L815
Settings:
● Test point: TP2
● Input level : 54dB
Method: Set to AM 1710kHz and check that the test point is
Method : Set to FM 98.OMHZand adjust L815 so that the
2160kHz * 45Hz .
voltage between TP2 and TP3 becomes OV&0,04V.
2, AM VT Adjustment
7. FM Auto Stop Level Adjustment
Settings :
● Test point: TP1
Settings :
● Adjustment location: SFR802
● Adjustment location: L810
Method : Set to FM 98.OMHZand adjust SFR802machine
Method: Set to AM 1710kHz and adjust L81Oso that test
performs Auto Stop when 30* 2dB is input.
point is 6.0& 0.05V.
3, AM Tracking Adjustment
L808 ................................................600kHz
< DECK SECTION>
TC802 .................,.,.,..,.,.,,.,........... 1400kHz
8. Tape Speed Adjustment
4, FM VT Adjustment
Settings :
● Test tape: TTA-1OO
Settings :
● Test point: TP1
● Test point: TP4, 5, 6
● Adjustment location : L804
● Adjustment location : SFR of deck motor
Method: Set to FM 108.OMHZand adjust L804 so that test
Method: Play back the test tape and adjust SFR1 so that the
point is 5.8* 0.05V.
output frequency is 3000Hz.
5. FM Tracking Adjustment
9. Azimuth Adjustment
L802, 803
98MHz
Settings :
● Test tape: ‘ITA-320
........................................
● Test point: TP4, 5, 6
<TUNER SECTION>
<FM SECTION>
IHF Sensitivity : Less than 15dB
(THD 3%)
[at 87.5 / 98MHz]
Less than 20dB
[at 108.OMHZ]
Signal to noise ratio: Less than 65dB
[at 98.OMHZ]
Distortion : Less than 2% (Input 54dB)
Less than 5% (Input 120dB)
[at 98.OMHZ]
Stereo separation : More than 20dB
[at 98.OMHZ]
Intermediate frequency : 10,7MHz
<AM SECTION>
Sensitivity: Less than 50dB
(S/N 10 dB) [at 600kHz]
Less than 58dB
[at 1000/ 1400kHz]
Signal to noise ratio: More than 30dB
[at 1000kHz]
Distortion : Less than 5% (Input 74dB)
Less than 10% (Input 120dB)
[at 1000kHz]
Intermediate frequency : 450kHz
<DECK SECTION>
Distortion :
Less than
3% (PB)
Less than
3% (REC/PB)
S/N ratio :
More than 35dB (PB,AC,DC)
More than 30dB (REC/PB,AC,DC)
Erasing ratio :
More than 45dB
(DC,AC,TONE CENTER)
Wow & flutter:
Less than 0.4% (R,M.S)
Take-up torque:
20- 60g-cm (FWD/REV)
F,F & REW torque: 55- 120g-cm
Test tape:
TTA-1OO
TTA-320
● Adjustment location :Head azimuth
adjustment screw
Method: Play back the test tape and adjust so that the output is
maximum.
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Aiwa CSD-ED78 Specifications

General

Brand	Aiwa
Model	CSD-ED78
Category	Car Receiver
Language	English