Sony ST-V702 - Page 5

ST-V502 |
si 3 shee ie ies ent hat the LAYO
gnal g ree reading (dB) . Se oop antenna so that the UT-FREE antenna
output channel input level becomes 2.5mV/m (68dB).
2. Tune the set to 216kHz.
3. Adjust the RV22 so that the TUNED LED goes on.
ee
RV21 for Adjustment Location :
minimum —tuner board—
ml
reading.
O
Adjust
RV21 for
minimum FEI
reading.
L-CH Stereo separation: ®-®
R-CH Stereo separation: ©-D
The separations of both channels should be equal.
TP1
FM DISCRIMINATOR
MW/LW
SECTION
A
ADJUSTMENT
IC21
(?)
AM TUNING LEVEL ADJUSTMENT C} :
BAND select switch: LW RV24
wares FM TUNING
peting: LEVEL ADJUSTMENT
loop antenna Ss) (Sy)
AM
ff
signal
RV22
generator
LAYOUT-FREE
AM
TUNING
antenna LEVEL ADJUSTMENT
qe
7
set \
721 RV21
:
FM
DISCRIMINATOR
—
FM
STEREO
Carrier frequency : 216kHz ADJUSTMENT SEPARATION
Modulation
:
400Hz,
30%
modulation
ADJUSTMENT
3-1. SEMICONDUCTOR LEAD LAYOUTS
LA5667
2SK246-
GR3
2SB1116A-L
DTA144ES
2SC2785-
HFE
HZS27-
2L
UZP-6.8B
DTC114ES 18$120 10E2N
2SA1317- STU
2SC2603-
EF
yee
rer
28C2669- OY 7
28C3113-A
2$C3330- STU
2S8C3402
GP1U52XB