Sony ICF-M770L, Руководство по обслуживанию

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ICF-M770L/M770S/M770SL
13 13
5-6. SCHEMATIC DIAGRAM – KEY Board – •
See page 14 for Waveforms.
LCD101
R120
R121
R122
R123
R124
R125
R126
R127
R128
R129
R130
R131
R132
R133
C121 C122 C123 C124 C130 C134 C135 C136 C137
R144
JW133
JW134
C138 C139
R180 R181 R182 R183 R184
R185
R186
R187
R188
R189
R190
R191
R192
R193
R194
R195
R196
C141
C115
Q103
Q106 Q111
C151
L103
C140 C143
R157
R158 C145
R159
C146
C147
R153
L102
R177
JW130
C148
JW124
JW125
C152
D104 D105
R148 R149 R154 R155
JW131
C142
C116 R139
R101 R102
C129
R136 R137
R152
JW129
R135
JW126
R151
S105 S104
S108
S116 S117
S118
S119
S106 S107
S103
JW110
R170
R138
D106
JW108
R171
R169
R176
R166
JW115
R163
JW128
JW127
JW104
JW119 JW116
R109 C113
R103 R104
C109 C108
R110
R111
R106 R107
JW105 JW135
R118
IC103 IC102
JC106
D101 R105
JC103
JW132
R160
R150 R108
JW123 JC105 JC107
D102
R168
JW103 JW106
JW107 JW102
JW111
JW113
R113
R161
R165
R167
JW109
R162
JW114
R147
JW101
JW112
R175
R164
R174 R173
R156
JW120
C106
C105
C104
R198
R197
R178
R179
R172
R199
R134
JW117
Q108 Q105
C144
T101
Q110 Q104
L101
X101
Q107
C149
D103
R116 R117 R114 R115
R112
S120
IC101
Q109
Q101
Q102
S114
S109
S102
S101
S110
S112 S113
S115
R142
R140 R143
C117
C118
C132
C150
JW122
R141
C133
C128
IC104
S111
2.2k
10k
10k
2.2k
2.2k
2.2k
2.2k
2.2k
2.2k
2.2k
2.2k
2.2k
2.2k
1k
470p 470p 470p 470p 470p 27p 22p 0.1 0.1
10k
0.01 0.1
100k 100k 100k 100k 100k
100k
100k
100k
100k
100k
100k
100k
100k
100k
100k
100k
100k
0.01
0.0047
DTC144EUA
2SC4081 2SC4081
10
16V
100p 0.22
100k
100k 0.1
47k
10
10V
0.1
22
10k
0.01
0.022
TOL-31CSGAKAA
-KS01
TOL-31CSGAKAA
-KS01
680 680 680 680
1000p
0.33 10k
100k 1k
1000
6.3V
1M 4.7k
47k
10k
470
10k
10
1SS355
10k
10k
10k
10k
10k
47k 0.1
1k 4.7k
0.1 0.1
100k
100k
1M 1M
1k
S-80842ANNP S-80836ANNP
1SS355 1k
100
47k 47
1SS355
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k 10k
1k
100p 10 16V 0.01
1k
1k
1k
1k
10k
1k
10k
DTC144TUA 2SC4098
10p
2SC4081 2SC4081
3.3mH
75KHz
2SC4081
1
UDZ-TE17-13
100k 100k 100k 100k
4.7k
S-81230SG-QB-T1
2SA1576A
2SB970
DTC144TUA
10k
100k 2.2k
1000p
470p
100p
47p
0.1
1
-036-1A7
COM0
COM1
COM2
COM3
LCD0
LCD1
LCD2
LCD3
LCD4
LCD5
LCD6
LCD7
CO
M0
C
OM
1
COM2 COM
3
LCD0 LCD1 LCD
2
L
CD3
LCD4 LCD5 LCD
6
LCD7
KS0
POWER
KS1
KS2
KS3
KS4
KR0
KR1
KR2
KR3
GND EO REG0 VDD REG1
INITIAL2 INITIAL1
VDET2
BEEP
CEDET
LCD14 LCD13 LCD12 LCD11 LCD10
LCD9 LCD8
LCD7
LCD6
LCD5
LCD4
LCD3
LCD2
LCD1
LCD0
COM3
COM2
COM1
COM0
LIQUID CRYSTAL DISPLAY
8
FM OSC
RF GND
7
9
AM OSC
10
AC DETEC
6
VT
SCAN TUNE
5
11
BEEP
12
GND
14
15
13
UCOM DC
6V COM
VCC
4
LW=L MW=L SW=H
3
FM=H SW.MW.LW=L
2
MUTE
1
GND OUT IN
SW.MW.LW=H
BAND FM=L
SELECT SWITCH
FM/(SW/MW/LW)BAND FM VCO
BUFFER
AC
DETECT
DC/DC
CONVERTER
Q104,110
LOW-PASS
FILTER
10k
4.7k
(M770L)
AC DET
TUNE
LIGHT HOLD VCOL VCOH XOUT XIN REGLCD0 CAPLCD0
CAPLCD1
REGLCD1
SYSTEM CONTROLLER,
LIQUID CRYSTAL
LED DRIVE
(LCD BACK LIGHT)
D104,105
DC/DC
CONVERTER
Q106,111
BPF
MUTE
AM/
(FM/TV)
VDET1
(M770L)
(M770SL)
HOLD
OFF
HOLD
GND NC
OUT IN
VOLTAGE
DETECT
VOLTAGE
DETECT
GND NC
OUT IN
NC NC
+3V REGULATOR
B+ SWITCH
B+ SWITCH
CONTROL SWITCH
POWER ON/OFF
OPERATION
LIGHT
5 4 3 2 1 7 6
BAND
S108 S102 S103 S104 S106 S105 S107
mb/CLOCK SLEEP
SCAN
STANDBY
ON/OFF
STANDBY
TIME SET
S116 S117 S118 S119
TUNE/
TIME SET
(M770S/M770SL)
(M770L/M770S)
(MW/LW)/SW
DISPLAY DRIVER,
KEY CONTROL
STATION SELECT/ PRESET
PRESET TUNING
(M770S/M770SL)
CLOCK (M770L)
(M770S/M770SL)
µ PD17072GB
100 µ H
220 µ H
(Page 11)