Sony Vaio PCG-FH120, Service Manual

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2-2 PCG-FX120/FX140/FX150/FX170/FX190 (UC)
Confidential
• The serial loopback tool and the parallel loopback tool are necessary for diagnostics of the serial communication line and
the parallel communication line. Fabricate the serial loopback tool and the parallel loopback tool locally referring to the
connection diagrams shown below.
[Reference] On Serial/Parallel Loopback Tool
Serial Loopback Tool : For diagnostics of serial port
Parallel Loopback Tool : For diagnostics of parallel port
NOTE:
The black round mark "
z
" indicates soldering.
NOTE:
The black round mark "
z
" indicates soldering.
1
2
3
4
5
6
7
8
9
DB9S
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
• Connector Types DB9S (Female)
• Interface Standard RS-232C
• Loopback Data & Handshake
SERIAL LOOPBACK CONNECTOR CONNECTION DIAGRAM
• Connector Types DB25P(Male)
• Interface Standard Centronics
• Loopback Status to Commands
PARALLEL LOOPBACK CONNECTOR CONNECTION DIAGRAM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
D0
D1
D2
D3
D4
D5
D6
D7
-ACK
BUSY
PE
SLCT
-STROBE
-AUTO FD
-ERROR
-INT
-SLCT IN
GND
GND
GND
GND
GND
GND
GND
GND
DB25P