AM (MW) Auto Scan/Stop Level Adjustment

Setting:

[MODE] button (MDX-C5970): AM

[MODE] button (MDX-C5960R/C5970R): MW

FREQUENCY SELECT switch: AM 10 k (E model)

30 Ω 15 pF

65 pF

AM RF signal

generator

AM dummy antenna (50 Ω)

set

antenna jack (J1)

Carrier frequency: 1000 kHz (MDX-C5970)

999 kHz (MDX-C5960R/5970R)

30% amplitude

 

modulation by

 

1 kHz signal

: 33 dB (44.7 V)

Output level

Procedure:

1.Set to the test mode. (See page 16)

2.Push the [SOURCE] button and set to FM.

3.Push the [MODE] button and set to AM (MDX-C5970) or MW (MDX-C5960R/C5970R).

Display

*2

SHUF

*3

TP

*4

4.Adjust with the volume RV1 on TU1 so that the “AM” or “MW” indication turns to “AM0” or “MW0” indication on the dis- play window.

But, in case of already indicated “AM0” or “MW0”, turn the RV1 so that put out light “0” indication and adjustment.

Display

*2

SHUF

*3

TP

*4

*2: MDX-C5960R/C5970R indicate “MW”.

*3: MDX-C5960R/C5970R indicate “999”.

*4: Only MDX-C5960R/C5970R indicate.

Adjustment Location: See page 18.

RDS S-Meter Adjustment (MDX-C5960R/C5970R)

Setting:

[SOURCE] button: FM

FM RF signal

 

 

 

 

 

 

 

 

 

 

 

 

 

generator

 

 

 

 

 

 

antenna jack (J1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.01 F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

set

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Carrier frequency: 98.0 MHz

 

 

 

V)

Output level

: 35 dB (56.2

Mode

: mono

 

 

 

Modulation

: no modulation

Procedure:

1.Set to the test mode. (See page 16)

2.Push the [SOURCE] button and set to FM.

Display

SHUF

3.Push the preset [10] button.

4.Adjust RV1 on MAIN board so that the display indication is “11.2”.

Display

SHUF

Specification: Display indication : 10.8 to 11.6

Adjustment Location: See page 18.

Adjustment Location:

– SET UPPER VIEW –

RV1 RDS S-Meter Adjustment (MDX-C5960R/C5970R)

TU1

RV1 AM (MW) Auto Scan/Stop Level Adjustment

RV2 FM Auto Scan/Stop Level Adjustment

RV4 FM Sereo Separation Adjustment

– 17 –

– 18 –

Page 17
Image 17
Sony MDX-C5970R service manual AM MW Auto Scan/Stop Level Adjustment, RDS S-Meter Adjustment MDX-C5960R/C5970R