Main Circuit - Technics SX-PX554 Service Manual

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A

MAIN CIRCUIT

CN6
E 1
+5D 2
L41
SOFT 3
TO
L42
FJASP SOSU 4
L43
CN6
SUST 5
L44
MRXD 6
L45
MTXD 7
CN9
E 1
SW 2
CHECK
TERMINAL LED 3
+5D 4
CN8
MAC 1
PC1 2
PC2 3
MIDI 4
TO
MSEL 5
COM
TXD- 6
CN1
TXD+
7
E
8
RXD+ 9
RXD- 10
UNLESS OTHERWISE SPECIFIED:
DIODES ARE MA111TX.
+5D
0 R15 1.5K
0 R16 1.5K
0 R17 1.5K
0 R10 470
0 R11 470
+5D
R18 10K
L50
0
L46 470
L47 470
L48 470
L49 470
R20 0
B
D31
R21 0
C
+5D
Z11
10Kx4
R22 0
A
R23 0
D
09/08/2012
E
D
C
B
A
Q2
2SB709ARTX
5MI
R6
C1 1K
0.22
SNS
L35
0
100K
C23
0.001
IC5
T7WU04FTE12L
(TRIPLE INVERTER)
GND +VCC
1 2 3 4 5 6 7 8
D21
+5D
C26
0.1
R35 1M
R36 X3
4.7K QSXG2F0100DA
C24 C25
100P 100P
World of free manuals
+5D
R4 D1
R5
2.2K MA8030HTX
1K
C2
0.22
Q3
2SD601AQTX
D2
R7
100K
+5D
D3
R8 C3
0.1
+5D IC3
C11
M5M34051FPE2
0.1
(BUS TRANSCEIVER)
+5D
16
VCC
1
3
2
+5D
6
5
7
1DE
4
13
15
14
2DE 12
11
9
10
GND
8
IC4
T7WU04FTE12L
(TRIPLE INVERTER)
GND +VCC
1 2 3 4 5 6 7 8
R24 1M
R25 X2
0 QSXG2FR614DA
C14 C13
100P 100P
B
www.nostatech.nl
R111
10K
B
R112
10K
A
R26
470
C
+5D