Baza Porad Serwisowych
AD8 VSS
P2.0
AD9
XTAL1
P2.1
AD10
XTAL2
P2.2
R2271,2k
AD11 RD
P2.3 P3.7
R228 1,2k
AD12 WR
P2.4 P3.6
1
R229 1,2k
AD13 T1
RANGE 2
P2.5 P3.5
R221 1k
SILT 3
R230 1,2k
AD14 T0
MONO 4
P2.6 P3.4
R220 220
STOP
R231 1,2k
AD15 INT1
STOP1 6
P2.7 P3.3
R219 220
STANDBY 7 27 REMOTE OUT
INTO
PSEN
GND 8
P3.2
9 26 REMOTE IN
TXD/CLOCK
ALE
+5V 10
P3.1
RXD/DATA
EA 25
P3.0
R218
1k
R232 100k
AD7
RST 24
P0.7
R217 1k R214 3,3k
AD6
P1.7 23 DLEN
P0.6
R213 3,3k
AD5
P1.6 22 DATA
P0.5
R212 3,3k
AD4
P1.5 21 CLOCK
P0.4
AD3
P1.4
P0.3
AD2
P1.3
P0.2
AD1
P1.2
P0.1
AD0
P1.1
P0.0
VDD P1.0
SERWIS ELEKTRONIKI
5
C220
330p
C219
330p
K201
K202
C218
330p
1
2
3
4
5
6/T-ON
7/T-OFF
8/TIMER
-
+
TIME
MEMORY
330p
P210
P211
P212
P213
P214
P215
P216
P217
P205
P204
P203
P206
P207
P208
P202
P209
P201
FM3/FM4
FM1/FM2
MONO
AUTO
STAND-BY
1,2k
(B2)
5V
C217
R223
1,2k
R224
1,2k
R225
1,2k
R226
5522-3200/3
4MHz
KR201
BLOK
STEROWANIA
10n
10n
22p
22p
C221
C222
C223
330p
C216
C215
10n
C214
C224
330p
C225
330p
C226
330p
C227
330p
4V
0V
0V
5V
5V
5V
-3P/J442
5V
0V
5V
5V
5V
5V
2,3V 2,3V
0V
10n
C210
2,2n
C211
D203
BAYP94
D204
BAYP94
C212
2,2n
C228
4,7u/16V
0V
T203
5V
3,3k
R209
0V
T201
BC238B
6,8k
BC308 B
R208
C207
100p
C208
100p
C209
100p
Rys.8. Schemat bloku sterowania tunerem.
US201
PCB
80C51
BH-
5V
5V
0V
0V
5V
0V
5V
5V
5V
5V
0V
5V
5V
0V
0V
0V
0V
R216
1,2k
270
1,2k
1k
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
C3V3
R202
R207
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
5V
R201
22n
10k
R215
5V
R206
1,2k
0V
3V
5V
+5V
4,3V
10V
US202
PCF8583P
L201
L202
K205
K203
K204
D201
BAYP94
8
7
6
5
1
2
3
4
10k
10k
BZP683
R204
R205
D202
T202
BC308B
R209
3,3k
4,5V
2V
KR202
0V
32,768
kHz
+5V
C205
C206
7-30p
+5V
10V
C201
C202
C203
C204
100u/10V
100u
22n
100u
31
19
18
17
15
14
13
12
11
32
33
IN
OUT
DE2
16
+5V
DE1
DATA2
DATA1
CLOCK2
CLOCK1
REMOTE
RESET
REMOTE
1
3
4
5
2
G3
10k
1
R21
10k
R210