Read Sony ST-D777ES Service Manual online
16
AM SECTION
AM Tuned Level Adjustment
Setting:
Procedure:
1. Set AM RF signal generator so that the AM antenna input level
1. Set AM RF signal generator so that the AM antenna input level
becomes 74dBµ/m.
2. Adjust the position of RV201 so that “ TUNED” lights.
Adjustment Location
[MAIN BOARD] — Component Side —
AM RF SSG
loop antenna
set
loop antenna
(Supplied accessories)
(Supplied accessories)
60 cm
AM antenna
terminal (TM1)
terminal (TM1)
30% amplitude
modulation by
400 Hz signal
modulation by
400 Hz signal
Carrier frequency : 216kHz
Modulation : AUDIO 400Hz, 30% modulation
Modulation : AUDIO 400Hz, 30% modulation
Field strength dB (
µ
V/m) =SSG output level dB (
µ
V/m) –26 dB.
CN702
1
11
CN701
1
14
CN704
1
15
RV301
Stereo
Separation
RV202
FM Signal Level
RV201
AM Tuned Level
TP201
RV203
FM Stereo/Tuned Level
IFT202
(NULL)
IFT203
(NULL)
IFT203
(THD)
IFT202, 203
FM Discriminator
FE202
FE101
Click on the first or last page to see other ST-D777ES service manuals if exist.