Technics ST-GT1000, Руководство по обслуживанию

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IC602
TC74HCT7007A
3.3V TO 5V
CONVERTER
IC201
LC72722PMTLM
RDS DECODER
IC603
TC74HC4050EL
5V TO 3.3V
CONVERTER
IC302
M514400D6SJ1
4M DRAM
R609
1K
14 13 12 11 10 9
7 6 5 4 3 2 1
Y5 A5 Y4 A4 Y3 A3 Vcc
Y0 A0 Y1 A1 Y2 A2 GND
8
GND V
CC
Y2 A2 Y1 A1 Y0 A0
Y3 A3 Y4 A4 Y5 A5
1 2 3 8
13 14 15 16
NC NC
9 10 11 12
4 5 6 7
SYR
VREF T1 T2 T3 T4 T5
T7
MPX
IN
V
DDA
V
SSA
FLOUT CIN X
OUT
CE
DI
CL
DO
RDSID
SYNC
T6
V
SSD
V
DDD
XIN
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
Z101A(RAL0042)
A B C
A
B
C
D
E
F
G
H
I
R
Q
P
O
N
M
L
K
J
A B D G E H C F I
A
B
C
D
E
F
TP110
R101
100
TP101
TP304
C103A 16V10
C106A 6.3V100 L106 10 H
C105A 6.3V100 L105 10 H
C104A 10V100 L103A 10 H
C102A 10V100 L102A 10 H
C101A 6.3V100 L101A 10 H
C602
0.1
R61
1
1K
R612
1K
R613
1K
R608 100
R607 100
R606 100
R201
0
C205
330P
R204
1K
R203
3.3K
R605
1K
R604
1K
R603
1K
C208
0.1
C209
6.3V100
R202
100
C206
47P
X201
(4.332MHz)
C207
47P
C204
560P C203
0.1
C201
6.3V100
L201
10
H
C202
6.3V100
MAIN CIRCUIT
B
SCHEMATIC DIAGRAM 5
R614 15K
C603
0.1
C306
0.1
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DQ0
DQ1
WE
RAS
A9
A0
A1
A2
A3
Vcc
Vss
DQ3
DQ2
CAS
OE
A8
A7
A6
A5
A4
1 2 5 6 7 8 9 10 11 12 13 14 15 16 17
SCL
SDA ADR
NULL
IF
OUT
+B +B
LDV
+B
AFC
+B
ANT
+B
DAB ANT
(75
)
DAB RF TUNER
14.4V
3.3V
14.8V
7.3V
5V
5V
3.3V
2.5V 2.5V 5V 2.5V 2.5V 2.6V
2.5V 5V 5V 5V 5V 0.1V
(5V)
0V
1.7V
1.7V
2.8V
2.8V
2.8V
1.4V
0.3V
0.3V
1.4V
5V
1.4V
1.8V
3V
3.3V
1.5V
1.5V
0.3V
1.4V
1.4V
5V 0V 0V 0V 0V 0V 0V
0.1V 0.1V 3.3V 5V 3.3V 5V
3.3V 3.3V 5V
3.3V
(3.3V)
0V
5V
(5V)
0V
3.3V 5V 3.3V
(3.3V)
0V
5V
(5V)
0V
2V
P P
F=4.332MHz
2V
P P
F=4.332MHz
:POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGE LINE :DAB SIGNAL LINE