Realistic STA-730 User manual

CUSII]M MANUFACTURED Ft]R RADII] SHACK,A DIVISION OF IANDY CORPORATION

CONTENTS
1.
2.
3.
4.
5.
6.
7.
B.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
BLOCK DIAGRAM
DISASSEMBLY I NSTRUCTIONS
DIAL STRINGING DIAGRAM ... ....
ALIGNMENT PROCEDURES
ALIGNMENT POINTS ............
LEVEL DIAGRAM
26-
3&4
5
6
6
7 -9
10
11
TROUBLESHOOTTNG 12 - 17
OO94A, B TUNER, PRE-AMP & VOLUME BOARD 18 & 19
61004 MAIN AMP BOARD 20&21
61OOB FLUORESCENT IND BOARD
61OOC, D, E, F HEADPHONE JACK, SIGNAL LED, LINE TO CHASSIS
RESISTOR & POWER IND. LED BOARD
SEMICONDUCTOR LEAD IDENTIFICATION
IC EOUIVALENT CIRCUIT
ELECTRICAL PARTS LIST
MISCELLANEOUS PARTS LIST
SCHEMATIC DIAGRAM.................. SEPARATE SHEET
EXPLODED VIEW .....SEPARATE SHEET
22
23
24
25
34
35
v

SPECIFICATIONS
NOM I NAL LIM IT UNIT
FM SECTION
1, FREOUENCY COVERAGE
2. FREOUENCY READOUT ACCURACY
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
90 MHz
98 MHz
106 MHz
USABLE SENSITIVITY
(NOTSE & DTSTORTTON -30 dB)
IMAGE REJECTION (at 106 MHz)
lF REJECTION (at 90 MHz)
FULL LIMITING (at -3 dB)
lF BANDWIDTH (6 dB down)
DISTORTION (1 mV INPUT)
SIGNAL-TO-NOISE RATIO (1 mV INPUT)
DE-EMPHASIS (at 50- 10000 Hz)
DISCRIMI NATOR BANDWI DTH (Peak-to-Peak)
AFC HOLDING RANGE (with 1 mV signal)
OUTPUT VOLTAGE MONO
(at 75 kHz dev., 4OO Hz mod., 1 mV input) STE R EO
MUTING THRESHOLD
OVERLOAD (THD at 98 MHz, 100% mod.)
100 mV RF INPUT
SPURIOUS RESPONSE at 98 MHz
ANTENNA INPUT 3 pV, 1 12 tF , 103.35 MHz
CAPTURE RATIO (1 mV INPUT)
ALTERNATE CHANNE L SE LECTI VITY
(100 pV INPUT)
50 dB OUIETING SENSITIVITY at 98 MHz
16.
14.
15.
17.
18.
19.
100 Hz
1 kHz
10 kHz
1 kHz
MPX SECTION
1. STEREO SEPARATION
(1OO% mod., 1 mV input,
with Low Pass Filter)
2, DISTORTION
llOOYo mod., 1 mV input)
3. STEREO BEACON SENSITIVITY (pilot 8%)
4. RESIDUAL 19 kHz & 38 kHz (1 mV input)
5. SUPPRESSION OF SCA INTERFERENCE
(1 mV input)
AM SECTION
1, FREOUENCY COVERAGE
2, FREOUENCY READOUT ACCURACY
3. USABLE SENSITIVITY 600 kHz, 1000 kHz,
(4OO H2,30% mod.,
noise & distortion -20 dB)
4. IMAGE REJECTION (rt 1,400 kHz)
5. lF REJECTION (at 600 kHz)
6. AGC FIGURE OF MERIT
(from 100 mV/m at 1,000 kHz)
7. DISTORTION
(4OO H2,30% mod., 5 mV/m input)
8. lF BANDWIDTH (6 dB down)
600 kHz
1,000 kHz
1,400 kHz
1400 kHz
Radiated
Terminal
87.4-109*
t50
t50
r50
1.7
9.8
55
BO
1.2
0.1 5
70
t1.5
400
t12OO
o.75
0.7
6
0.3
80
1.0
55
3.0
16.1
510-1660
40
45
3B
0.3
B
40
320
25
48
35
40
0.8
88-108
t 100
t 100
r 100
2.4
12.8
50
70
1.8
1150
0.5
65
t2
300
tB00
0.75t3 dB
0.7t3 dB
4-10
0.8
70
2.5
45
6.0
20.8
28
32
25
0.8
5-12
30
40
520-1620
t15
t20
t40
2.O
6-14
600
40
40
28
35
MHz
kHz
kHz
kHz
pV
dBf
dB
dB
pV
kHz
o/o
dB
dB
kHz
kHz
pV
o/
/o
dB
dB
dB
dB
dB
dB
o/
/o
kHz
kHz
kHz
kHz
pY lm
pV
dB
dB
dB
o/o
kHz
pV
dBf
pV
dB
dB

NOMINAL LIMIT UNIT
9. OUTPUT VOLTAGE
(400 Hz, 30% mod., 5 mV/m input)
10. AUDIO RESPONSE
(5 mV/m input from 50 Hz to 2.3 kHz, 0 dB @1,000 kHz)
11. SELECTIVITY 200 pVlm
12. SIGNAL-TO-NOISE RATIO
(1,000 kHz, with antenna input 10 mV/m)
13. AM BEAT 1 - 50 mV/m
50 - 100 mV/m
AUDIO SECTION
1, RMS OUTPUT POWER
(distortion 1O.15o/o,20 Hz - 20 kHzl
BOTH CHANNELS DRIVEN B s}
2. IM DISTORTION
(at 20 W output 7Ol7,OOO Hz 411l
3. HARMONIC DISTORTION (at20 W output) 20 Hz
1,000 Hz
20,000 Hz
4. FREOUENCY RESPONSE +1, _1.5d8
(AUX, 8 O load, 1 W output)
5. INPUT SENSITIVITY (for 27 W output)
6. INPUT IMPEDANCE
7, TONE CONTROL TAPE MON
BASS 100 Hz
TREBLE 10 kHz
8. EOUALIZATION RIAA: 30 - 15,000 Hz
9. PHONO AMP OVERLOAD CAPABTLITY (at O.2yo)
10. LOUDNESS COMPENSATION (volume -30 dB) 10 kHz
100 kHz
11, CHANNEL SEPARATION
(AUX input 100 - 10,000 Hz)
12. SIGNAL-TO-NOISE RATIO (input shorted)
10 mV input, IHF-A PHONO
AUX
13. RESIDUAL NOISE
14, LOAD IMPEDANCE
15. POWER SOURCE 120 Volts, 60 Hz AC*
21 WATTS, No Signal
130 WATTS, Full Sisnal (27 WATTS, I st,
BOTH CHANNELS)
PHONO
AUX
TAPE MON
PHONE
AUX
250
-4
32
50
30
0.03
o.o2
o.o2
0.03
1 5-25K
2.5
160
160
50K
50K
50K
t10
t10
140
+4
+7
45
81
92
o.7
200
-6
25
40
10
15
27
0.08
0.05
0.05
0.08
20-20K
2.5t0.3
160t30
160t30
t1O!2
!10t2
RIAAt2
110
+4t2
+7!2
40
76
85
1.5
4-16
mV
dB
dB
dB
o/
/o
o/
/o
W
o/
/o
%
o,/
/o
o/
/o
Hz
mV
mV
mV
ohm
ohm
ohm
dB
dB
dB
mV
dB
dB
dB
dB
dB
mV
ohm
* 22O/24O VAC, 50 Hz for European and Australian Models.
* European models must not be able to tune to below 87.5 MHz.
NOTE: Nominal Specs represent the design specs; all units should be able to approximate these-some
will exceed and some may drop slightly below these specs. Limit Specs represent the absolute
worst condition which still might be considered acceptable; in no case should a unit perform
to less than within any Limit Spec.

BLOCK DIAGRAM
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1.
2.
DISASSEM BLY I NSTRUCTIONS
To remove chassis from metal enclosure
Remove five screws (#67 & #68) from sides and back.
To remove the Front Panel
Pull off the tuning knob.
Remove six screws (#15 & #66) from top and bottom of the Front Panel then remove the Front panel.
(Refer to Miscellaneous Parts List for descriptions of numbered parts.)
(Gn
L%
1@-^
re,
DIAL STRINGING DIAGRAM
Note: Tuning capacitor should be in fully closed position.
DIAL DHAM
SPRING FOR DIAL []RAM
@4 (7,r /-@
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:(^
t1-/
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PLAS TIC PULLEY

ALIGNMENT PROCEDURES
Do not attempt alignment unless
1. AM Signal Generator
2. Oscilloscope
3. AC Voltmeter
Note: Remove line cord antenna
the following equipment is available.
4. FM Signal Generator 7. Distortion Meter
5. Stereo Modulator
6. Audio Generator B. DC Voltmeter
9. Frequency Counter
from FM external antenna terminal when aligning.
AM IF & RF ALIGNMENT
Output of signal generator should be no higher than necessary to obtain an output reading.
Signal Generator Modulation: 30%
Press the AM button.
STEP SIGNAL GENERATOR
COUPLI NG
SIGNAL
GENERATOR
FREOUENCY
RECEIVER
DIAL
SETTING INDICATOR ADJUSTMENT
Refer Fig. 4REMARKS
1Refer Fig. 1455 kHz
(400 Hz Mod.)
Point of non-
interference
(onlabout
600 kHz)
AC Voltmeter
to TAPE OUT
jack T203 (tFT) Adjust for maxi-
mum reading.
2Same as Step 1600 kHz
(400 Hz Mod.) 600 kHz Same as Step 1L20i (OSC Coil)
L251 (ANT Coil) Same as Step 1
3 Same as Step 11400 kHz
(400 Hz Mod.) 1400 kHz Same as Step 1
TC2O2
(OSC Trimmer)
rc201
(ANT Trimmer)
Same as Step 1
4Same as Step 11 000 kHz
(400 Hz Mod.)
Tune for maxi-
mum reading on
SIGNAL indi-
cator LED with
weak signal
Front Panel
Frequency
Readout VR4O1
Adjust for 1000
kHz reading on
Frequency
Readout
Note: Remove line cord antenna from FM external antenna terminal when aligning.
l<--z'
I too. TAPE OUT
RECEIVER
Loop Antenna
L251
I
I
Fis. 1 AM ALIGNMENT CONNECTION
TUNER
FRONT END
TC201 ,rC202
L201

FM RF AND IF ALIGNMENT
FM Dummy Antenna to 3O0o antenna terminal of Receiver.
125 (112.5A1
50s2 (75a) Zout=30O (balanced)
___^/w_________o
1 50s)
Fis.2 FM DUMMY ANTENNA
Signal generator output should be no higher than necessary to obtain an output reading.
Pres the FM button.
Signal Generator deviation: lSkH,z NOTE: Be sure to dlsconnect FM line cord antenna during alignment.
STEP SIGNAL
GENERATOR
COUPLI NG
SIGNAL
GENERATOR
F R EOU ENCY
RECE IVER
DIAL
SETTI NG INDICATOR ADJUSTMENT
Refer Fig. 4 REMARKS
1
Connect to FM
Antenna Termi-
nal through
FM Dummy
Antenna
(300) Fig. 2
90 MHz
(400 Hz Mod.) 90 MHz
AC Voltmeter
connected to
TAPE OUT
jack
L1 01
(ANT. COIL)
L102
(RF COIL)
L1 03
(OSC. COIL)
Adjust for
maximum
reading on AC
Voltmeter.
2Same as Step 1106 MHz
(400 Hz Mod.) 106 MHz Same as Step 1
TC1 01
(ANT. Trimmer)
rua2
(RF Trimmer)
TC1 03
(OSC. Trimmer)
Same as Step 1
Repeat step 1 & 2 until no further improvement is possible.
3 Same as Step 190 MHz
(400 Hz Mod.) 90 MHz Same as Step 1T101 ilFT) Same as Step 1
4Same as Step 198 MHz
(400 Hz Mod.) 98 MHz
DC Voltmeter
connected to
pin #12 and 13
on PCB #00944 T201
Adjust for
zero reading
on DC Volt-
meter.
5Same as Step 198 MHz
(400 Hz Mod.) 98 MHz
Distortion
Meter con-
nected to TAPE
OUT jack T202 Adjust for
minimum
distortion.
6 Same as Step 198 MHz
(400 Hz Mod.) 98 MHz SIGNAL
STRENGTH
lndicator LED vR202 Adjust for Full
Signal lndication
with input of
500 pV
7Same as Step 1
(Be sure AUTO-M
is off (out). )
98 MHz
(400 Hz Mod.) 98 MHz Same as Step 1V R201
Adjust for zero
reading on AC
Voltmeter with
SG output level
of 6pV
8 Same as Step 198 MHz
(400 Hz Mod.)
Tune for light up
to FM TUNED
lndicator LED.
Front panel
Frequency
Readout vR402 Adjust for 98
MHz reading on
Frequency read-
out
For European model, the owest frequency of FM tuning range should not be below 87.5 MHz.
Zin=50O (75s2)

MPX ALIGNMENT
FM ANTENNA
TERMINAL
(300 s2)
TAPE OUT
RECEIVER
I
TUNER
FRONT END
L101 ,L102
L1 03,
TC101 ,TC102,
TCl 03,T101
FM DUMMY
ANTENNA
300 a
FM SIGNAL
GENERATOR
STEREO
MODULATOR
Fis. 3 FM RF, IF AND MPX ALIGNMENT CONNECTION
Press the FM button.
Tune for 98 MHz on band.
Signal Generator output level: 1000pV Deviation: 75kHz at 100% modulation of composite signal
Connect Signal Generator to FM Antenna Terminal through FM Dummy Antenna (300 ,Q).
STEP
19 kHz
(PILOT SIGNAL)
MODULATION
Level
SIGNAL
GENERATOR
Freq. Set to
OUTPUT
INDICATOR
Connected to
ADJUST
Refer
Fig.4 ADJUST
FOR NOTE
1
Frequency cr]unter
connected to Pin
#14 and Ground V R301 19 kHz
2 87o Composite 1 kHz
R channel
AC Voltmeter
connected to
TAPE OUT jack
of R channel
Adjust input
for Audio out-
put of about
0.7 v.
38o/o Composite 1 kHz
L channel
AC Voltmeter
con nected to
TAPE OUT jack
of R channel
VR3O2 mtnlmum
AC Voltmeter
reading should
be at least 32
dB below read-
ing in step 2.
48% Composite 1 kHz
R channel
AC Voltmeter
connected to
TAPE OUT jack
of L channel
V R3O2 mlntmum Same as Step 3.
lf you did not obtain -32 dB readings in steps 3 and 4 (compared with step 2), readjust VR302 until you obtain -32 dB
reading for both steps 3 and 4.
MAIN AMPLIFIER ALIGNMENT
INDICATOR ADJUSTMENT REMARKS
DC Voltmeter VR603a,b Adjust for 0.01 - 0.015 volts
across R619 a, b with no signal.

.€ &"$
ALIGNMENT POINTS
PrN #12 VR201 TC103 Ll03 L25t
vB603b PtNf13 yp4g2 vR401 VR302
Fig. 4
10
Tl 01
Ll 02
L 101
TCl 02
TCl ()1
TC20l
rc202
TC203
1201
vR202
PrN #14
V B3()1

m
-E
z,
a
(5
IJJ
(5
F
J
o
LEVEL DIAGRAM
FHE0UENCY = 'lkHz
VO LUME
I NPUT
SELECTO R
co
C.o
oa
11

TROUBLESHOOTING
SYMPTOM CAUSE AND REMEDY
1. Receiver not operative; POWER
indicator does not light. A) Faulty AC power cord
Replace.
B) Defect in the power switch
Replace.
C) Broken wire in the power transformer
Replace the transformer.
D) Blown power fuse F801
Replace.
2. Fuse blows when power is turned on. A) Power transformer T851 defective
Replace.
B) Short in the primary or secondary of the transformer
circu itry
Repair the short.
C) Damaged rectifier D801
Replace the rectifier.
D) Short circuit in the rectifier circuit
Repair the short.
3. POWER indicator lights but no
sound from either channel. A) SPEAKERS switch SW10 or SW11 defective
Replace the defective switch(es).
B) Defect in transistors TR606a,b-TR609a,b of
Main Amp Board #6100
Replace the defective transistor(s).
4. A speakers do not work. A) Speaker switch SW10 defective
Replace.
5. B speakers do not work. A) Speaker switch SW11 defective
Replace.
6. One channel does not work with
VOLUME at maximum with a test
signal applied to the center terminal
of VOLUME control VR7O2 of the
dead channel.
A) Defective TR901
Replace.
B) Defect in transistor TR601-TR610 of Main Amp
Board #6100
Locate and correct the defect.
C) Break in copper foil of printed circuit board
#6100
Repair or replace circuit board(s).
D) Short in speaker output terminal
Repair the short.
E) Defective resistor R901, R603, R604, R606-R612,
R615-R619
Replace the defective resistor(s).
F) Defective capacitor C901, C904, C604, C617, C618
Replace the defective capacitor(s).
12

SYMPTOM CAUSE AND REMEDY
7. Same as (6) above but channel
operates when test signal is applied
as in (6).
A) Defective PHONO switch SW2 or TAPE MON
switch SW1
Repair or replace the switch(es).
B) Defective BALANCE control VR701
Replace.
C) Resistor R701 or R702 defective
Replace the resistor.
8. Speakers work normally but
headphones do not work. A) Headphone plug does not mate with jack.
Replace the plug.
B) Defective resistor R637a,b
Replace.
9. All inputs work normally except
for AUX input. A) Poor contact in AUX input jack
Repair or replace the jack.
B) Faulty AUX switch SW3
Repair or replace the switch.
C) Defective resistor R510
Replace.
10. PHONO input not operative A) Defective 1C501
Replace.
B) Faulty resistor R501, R503-R509
Replace the faulty resistor(s).
C) Faulty capacitor C501-503
Replace the faulty capacitor(s).
D) Poor contact in PHONO input jack
Repair or replace the jack.
E) Faulty PHONO switch SW2
Repair or replace the switch.
11. TAPE MON not operative A) Defective TAPE MON switch SW1
Repair or replace.
Defective contact in TAPE lN jack(s)
Repair or replace the jack(s).
B)
12. FM does not operate. A) Short circuit in Tuner B + circuit
Repair the short.
B) Defective FM (SWs) switch
Repair or replace the switch(es).
C) Resistor R212 or R301, defective
Replace the defective resistor(s).
D) Capacitor C301 defective
Replace.
E) Defective lC 1C201 or 1C301
Replace the defective lC(s).
F) Defective lFTT101
Replace.
13

SYMPTOM CAUSE AND REMEDY
G) Defective transistor TR101 ,f R1O2, TR103,
TR201 or coil L101, L103
Replace the defective component(s).
H) Faulty lead-in
Repair the faulty lead-in.
13. Poor multiplex separation A) lmproper adjustment
Readjust VR302 (refer to ALIGNMENT
PROCEDURE on page g).
B) Transistor TR301, TR302 or lC 1C301 of Tuner
Board #0094 defective
Replace the defective component(s).
C) Variable resistor VR301 or VR302 defective
Replace the defective variable resistor(s).
14. Stereo indicator does not light. A) Defective indicator LED D301
Replace.
B) lmproper adjustment of VR301 of Tuner Board
#0094
Make readjustment
(Refer to MPX ALIGNMENT on page 9.)
C) Defective lC 1C301 or resistor R318
Replace the defective component(s).
15. FM volume not sufficient A) lf volume of both L and R channels not enough:
Front-End section defective, or faulty IFT T101
lC 1C201 or transistor TR201 of Tuner Board
#0094
Locate and replace the defective component(s).
B) lf sound of one channel not enough: Defective
TR301 in case of L channel, or defective TR302
in case of R channel
Replace the defective transistor.
16. AM does not operate Damaged lC2O2 of Tuner Board #0094
Replace.
Defective L2O1,T2O3,T2O4 or CF203
Replace the defective component(s).
One of resistors of Tuner Board #0094 (AM
section) defective
Replace the defective resistor.
One of capacitors of Tuner Board #0094 (AM
section) defective
Replace the defective capacitor.
AM switch SW4 defective
Repair or replace.
Defective Tuning gang capacitor
Repair or replace.
Damaged AM Bar antenna L251
Repair or replace.
A)
B)
c)
D)
E)
F)
G)
14

SYMPTOM CAUSE AND REMEDY
17 . LOUDN ESS has no effect. A) Defective LOUDNESS switch SWg
Replace the switch.
B) Defective capacitor C701, C7O2 or resistor R703
Replace the defective component(s).
C) Defective VOLUME control VR7O2
Replace.
18. Stereo-Mono not effective A) Defective MONO switch SW8
Replace.
19. TAPE MONitor not effective A) Defective TAPE MON switch SW1
Replace.
B) Poor contact in TAPE MON lN jacks
Repair or replace the jack(s).
20. BASS control has no effect. A)
B)
BASS control VR902 defective
Replace.
Defective capacitor C908, C909 or resistor
R907, R908
Replace the defective component(s).
21. TREBLE control has no effect. A)
B)
TREBLE control VR901 defective
Replace.
Defective capacitor C906, C907 or resistor
R905, R906
Replace the defective component(s).
22. Excessive noise with PHONO input A) Faulty IC501
Replace.
B) Faulty R501-R504, C501 or C506
Replace the faulty component(s).
23. Noisy VOLUME control A) Defective VOLUME control VR7O2
Replace the variable resistor.
B) Defective capacitor C503, C901, C904 or C618
Replace the defective capacitor(s).
24. SIGNAL STRENGTH indicator
LED not functioning A) Defective LED D403-D408 or IC403 Replace the defective component(s).
B) ln case of FM reception, VR2O2 or D201
defective
Replace the defective component(s).
C) ln case of AM reception, 1C401 or R250 defective
Replace the defective component(s).
25. AUTO-Magic AFC has no effect
when AUTO-M switch is ON. A) Defective D1O2, R109, R215 or C22O
Replace the defective component(s).
15

SYMPTOM CAUSE AND REMEDY
26. 30 Hz CUT has no effect. A)
B)
Defective 30 Hz CUT switch SW6
Replace.
Defective C905
Replace.
27. Frequency counter FIP does not
light when FM button is pressed
in.
A) Resister R817 defective
Replace.
B) TR803, R81 1, R4O7 , C406, C407 defective
Replace the defective component(s).
28. Frequency counter misreads in
AM or FM reception. A) Defective crystal XR401
Replace.
B) Defective lC 1C402 or transistor TR401
Replace the defective component(s).
29. Frequency counter misreads in
only AM reception. A) Defective AM switch SW4
Replaee.
B) Defective f R2O4, R231 or VR4O2
Replace the defective component(s).
16

NOTES:
1. This Receiver has two built-in overload thermal protectors for abnormal operation. When the temper-
ature of the thermal protector [one is installed with heat sink (SW14, 105"C) and the other with power
transformer (SW12, 105'C)l does rise abnormally (1OS t 5"C), the thermal protector will automatical-
ly cut out, and as soon as the temperature goes down sufficiently (3S t t5"C)-the thermal protector
turns back on automatically.
lf the Receiver does turn itself off, check ventilation and speaker connections.
HEAT SINK Ft)B POWER
POWERTRANSISTOBS TBANSFOBillER
AC l20V
60Hz
2. Transistors TR610a and TR610b protect audio output stage when abnormally high current flows in
TR608a,b and TR609a,b due to excessive input drive, or a too low impedance load connected at out-
put. TR61Oa,b are not normally biased on and collectors of these transistors (through SCR D603,
transistors TR612 and TR614) cut inputs of power amplifier stage.
Also transistors TR611, TR612 and TR614 circuits protect the speakers against high level switching
clicks and pop noises when power switch is turned on/off.
When POWER switch is first set to ON, TR612 is not biased ON by time constant of R629 and C614.
As soon as the C614 finishes charging, the TR612 will turn on and cause the TR613 and TR614 to turn
off. When POWER switch is OFF, the TR611 will turn on by charged voltage of C614 and C803 and
cause the TR612 to turn off and as a result, TR614 to turn on.
T0 0806
CATHODE
TO SPEAKEF
OUTPUT
TO TONE
CONTROL
SECT ON
TO ANOTHEB
CHANN E L
PROTECTION C!RCUIT
TH E R I\4AL
P R OTECTO B
17
IO AN{]THER CHANNEL

OO94A, B TUNER, PRE.AMP & VOLUME BOARD (TOP VIEW)
f ArArT.-[75o I sm--.,l
18

OO94A, B TUNER, PRE.AMP & VOLUME BOARD (BOTTOM
VIEW}
f ,on r T5aTAMANT.-I
19

6100A MAIN AMP BOARD (TOP VIEW}
;1 =- rS
Y.h\sl:l t
smMTmSU
30Hz CUT AUTo S MOilO LOIOilE$
a rg ^t^tJ2
! Ei = Ft\9 (7eru
20