Sansui 5900Z - Page 8

Fat
3-6. LC7258 (5 Digit Frequency Indicator IC)
Segment Output Pin No.
a,b.e&g 1~5, 22~42 b&e
Voo VSS Vref ¢ Cacegaceg acegig
109 eb? Fb
-] 7 re) bed f Obod9 f 9 °b9d? f¢> *
VDO
at =
Us
rf
.
Pele
|
Or
oe
ate
ine
Frequency
mill
VD
ad
UT
aii
5/4DIGITO-
:
/ IF Frequency oLOCK
7
Control
Voo
imi
meee
=
Taras
Cae
vi
SW
Fine
Tuning
Circuit
eae
|
-
AM
30
Step
‘s
o
-
-
FM
30
Step
oSF
ENA
AM Fine o
o
|
_
—
Tpu
FM
Fine
a
E
Osc
OUT
o-
|
cf
=
ae
VDO
, a
rpu I |
ODIVDOIV DD
81 111 9
IF FMS "IF AM2
1F AM1
3-9. LB1473 (Analog Dial Indicator IC)
Supply
4. ADJUSTMENT
4-1. FM Adjustment
(1) FMIF, VOLTAGE SYNTHESIZER Adjustment and Dial Calibration
Note: 1. Selector ...........+.22008- FM
2. FMMode .........-.-22.-e008. MONO
STEREO SG
AUDIO OSC
SUBJECT
FEED SIGNAL
Counter 110.750 MHz (White} Input Frequency
OFF-SET Adj. | 110.725 MHz (Orange) Terminal Display
110.700 MHz (Red) No. 58
110.675 MHz (Blue) (F-3321)
110.650 MHz (Black)
No. MOD. FM SSG
Basic Power
MEASURE
OUTPUT ADJUST ADJUST FOR
sVR2 100 MHz
(F-3321)
59002Z/49002/39002
NJM 45580
Too View
3-8. M54459L (Frequency Divider IC)
3-10. LA5S700 (Voltage Regulator IC)
NC Vref
Voo Int og
12 9 8
> reese re |
i 4
Back Up VO0
YOO Generator Ceneratar
LS! Canter Back up
Contra! Si gnat Controt Signal
Generanr Generator
Rm EMARKS
Feedsi gnal for the
frequsrcy Tank of the
ceranice filter used