AIWA XRMT1000
Instrukcja Serwisowa

ADJUSTMENT

<TUNER>

(MX-NMT1 C.B

000)

u

TUNER

(

)( �

)(

(

OEcl
7 H)

�FE801

(:
I

1-i 71

�

L772

1
�5

q

,

L981

TP1
(v

�)

(AUT

@
TP6
(LCH)

1

�7��;1> H
T~4

I
TP6(Lch), location : TP7(Rch)

L
EWLNCE)

(Dc

u
1/3

@

(DC BALANCE)

+

I

@m@
< TUNER 1. Clock Settings Method: SECTION> frequency : Check point: TP2 andcheck thatthetest

)

o

7

@c

6.

AM(MW) Settings

IF Adjustment :�q Test
q

qTest
Set

point:

to AM1710kHz + 45 Hz.

pointis

Adjustment

2160kHz

L772

.. .. ... ... ... ... .... .. ... ... ... ... ... ... ... ... ..45OMz

2.

MW

VT Check : c Test that more point: TP1 1710kHz and MW 530kHz and check and is less than 8.5 V(1710kHz)

7.

DC Balance/ Settings :
q

Mono Test point:

Distortion TP3,

Adjustment TP4 (DC L771 Balance) (Distortion)

Settings Method

: Set to MW

TP6(Lch),
q q

TP7(Rch)

the test point than

Adjustment Input level

location: : 54dB and

0.6V(530kHz). Method:

Set to FM voltage

98.OMHZ TP3

adjust

L771 becomes is less

so that

the

3.

MW

Tracking :
q

Adjustment Test point: TP6(Lch), location : 8. so that the Auto Stop TP7(Rch)

between check that

and TP4

OV k 0.04V. than 1.3%

Settings

Next,

the distortion

q

Adjustment

L981(1/3) Method : Set to MW test point

. ... ... ... ... ... .. .. .. .... .. .... ... ... 1000kHz 1000kHz is max. and adjust L98 1(1/3)

Level

Check

AM(MW) Settings :
q

Test Input

point: level

TP5 : 52dB 1000kHz and check that the auto stop is at

q

4.

FM VT Check Settings Method: :
q

Method: point: TP1 108.OMHZ
8.OV.

Set to AM 3762dB.

Test

Set to FM less than Set to FM more than

and check and check

that that

the test point the test point

is FM is Settings :
q q

87.5MHz 0.5V.

Test Input

point: level

TP5 : 25dB and check that the auto stop is at

Method: 5. FM Tracking Settings Method : :
q q

Set to FM 25dB

98.OMHZ

Check Test less point: than TP6(Lch), 98.OMHZ 9.OdB. TP7(Rch) and check that the test point is

+ 10dB.

Set to PM

46