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ST-MS919








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9



!TM
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7 6




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µ




µ





µ µ)




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1
X
4.8Vp-p
Y
¢
4.5MHz
b
IC51 @¢ XOUT
2
µ
5Vp-p


¢ 10MHz
2 IC201 $¡ X2
C
3
! !
2Vp-p



U 32.768kHz
V IC201 $ XT1
H



·

4
®
5Vp-p

F
f 503kHz
IC601 @º XOUT




­7­
ST-MS919




(Page 17)




Indication of transistor


E CB
These are
omitted




­9­ ­ 10 ­
ST-MS919




·

·



D1 A-4
D3 C-3
D4 B-4
D103 G-3
D104 G-5
D105 G-5
D125 E-7
D136 F-5
D143 F-6
D161 G-5
D191 B-5
D271 F-1
D281 E-2
D282 D-3
D401 E-3
D402 E-3
D701 F-13
D702 F-13
D703 E-13
D704 E-13
D705 D-12

IC1 D-5
IC51 B-6
IC111 F-6
IC171 F-1
IC201 F-3
IC401 C-2
IC402 B-2

Q1 D-7
Q2 D-7
Q9 D-7
Q10 D-7
Q55 C-8
Q121 E-8
Q122 D-8
Q123 E-7
Q136 E-5
Q137 G-5
Q141 E-6
Q142 F-6
Q201 F-4
Q202 F-8
Q203 F-8
Q271 F-1
Q272 G-1
Q281 D-2
Q401 B-2
Q402 F-4
Q403 D-1
Q451 B-3
Q701 D-13
Q801 B-8




AM ­ R
AM ­ L
FM DATA




FM ­ Lch



FM ­ Rch
( Page 15 ) ( Page 14 )




­ 11 ­ ­ 12 ­
ST-MS919




( Page 12 )




FM DATA
VCC ­ PULL UP




( Page
15 )


BUS ­ G




­ 13 ­ ­ 14 ­
ST-MS919




( Page 20 )




15




10




1
19




5
( Page
11 )




VCC ­ PULL
UP




( Page
14 )



BUS ­ G




­ 15 ­ ­ 16 ­
ST-MS919




(Page 9)




D602 B-6
D603 B-6
D604 C-5
D605 C-5

IC601 A-5
IC602 B-1




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ST-MS919



·




15




19
10
1




5




( Page 16 )




­ 19 ­ ­ 20 ­
­ ­ ­ ­

IC1 LA1835 IC401 MC13028AP IC601 M66004M8FP




AMP-IN R
AM-RF-IN




AMP-IN L
AM-OSC




AM.CUT




MPX-IN
FM-AFC




AM/FM
FM-SD




OUT R



OUT L
DIG11 1




AGC




VCO
DIGITAL 64 DIG12
IF 1 16 R-OUT




R
| |




L
PILO T OUTPUT | |
DET DIG0 12 CIRCUIT 61 DIG15
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 2
AGC AGC 15 L-OUT
RES 13
FEED BACK 3 14 LOOP FILTER
INDICATION
ALC AM AM AM CS 14 SERIAL CONTROLLER
IF
OSC MIX RF.AMP IF IN 4 AMP 13 DSC IN CLK 15 RECEIVE
BUFF
DECODER DATA 16 CIRCUIT
ANTI BIRDIE GND 5 12 VCC
AGC
VCD




CODE SELECT
STEREO ST LAMP 6 11 PILOT OUTPUT INDICATION
SW P1 17 PORT CONTROL
SIGNAL AM RESISTOR
VREF 7 Q UALITY STEREO 10 PILOT Q P0 18 (2BIT)
S METER STEREO 1/8
DET DECODER
DRIVE VCC1 19
BLEND 8 9 PILOT I
AM AM
TRIG CLOCK CODE/COMMAND
IF DET XOUT 20
GENERATOR CONTROL
XIN 21
CIRCUIT CIRCUIT
MUTE VSS 22
FF FF FF
AM/FM RAM WRITE
IF COMP
VCO IC402 MC14052BCP CODE
BUFF
LEVEL PILOT WRITE




COMMON
TUNING AM/FM DET
DET S-CURVE




(35BIT x 16)




(35BIT x 16)
DRIVE SW




DECODER




DECODER
SEL.A

SEL.B
PHASE INDICATION




VDD
AM
DET CODE




2

1




0

3
FM FM
IF DET 16 15 14 13 12 11 10 9 RESISTOR
FM (8BIT x 16)
REG GND 60 VCC2
VCC 59 SEG0
SEG35 23
| | SEGMENT OUTPUT CIRCUIT | |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 33 SEG26
SEG27 31




DECODER
FM-IN



AM-MIX



IF



REG



AM-IF



GND



TU-LED



ST-LED



DET



VCC



IF-BUFF



AM.SD



AM.SD



AM/FM



VCO-STOP
VP 32




IC51 LC72130
1 2 3 4 5 6 7 8
AOUT1
AOUT2




0

2




COMMON




3

1

INHIBIT



VEE

VSS
XOUT




AMIN
FMIN
AIN2




AIN1




VDD
VSS




PD2



PD1




IO2




24 23 22 21 20 19 18 17 16 15 14 13




SWALLOW COUNTER
1/16.1/17 4bits
POWER
REFERENCE ON 1/2
DIVIDER RESET


SWALLOW COUNTER
1/16.1/17 4bits
REFERENCE
DIVIDER


PHASE DETECTOR
CHARGE PUMP




C2 B DATA SHIFT REGISTER C B
I/F LATCH I/F




1 2 3 4 5 6 7 8 9 10 11 12
XIN




CE




BO3




IFIN
BO5




D1



CL



D0



BO1



BO2




BO4



IO1




­ 21 ­ ­ 22 ­
µ




­ 23 ­
97J0913-1
9-922-723-01 Printed in Japan ©1997. 10
­ 24 ­
ST-MS919
*
! !




9

#2
8
6




7
8
FL601
10




4 H1
10
11

5



1 2 3




*
*

* *

*




­1­
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51
54
53

#1 T701 56
52 54
#2
59 60

#1


#1




57 #2 58
#1 not supplied




57
#1




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M
m


*




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*




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­7­
ST-MS919




97J09056-1D
9-922-723-71 Printed in Japan ©1997. 10

­8­