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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
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I will definitely be back for more information when I need it.
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The service manual when downloaded and printed out was clear and easy to read. I would have liked to have been able to enlarge some details, but this was not possible as the file permissions did not allow this. The service was very good. The time taken from placing my order to downloading the document was only a few minutes.
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The manual is useful for trouble shooting for an old instrument. It saved money,and let me enjoy DIY.
[Reference] On Serial/Parallel Loopback Tool
� 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.
Serial Loopback Tool : For diagnostics of serial port
SERIAL LOOPBACK CONNECTOR CONNECTION DIAGRAM
� Connector Types DB9S (Female) � Interface Standard RS-232C � Loopback Data & Handshake
DB9S DCD RX TX DTR GND DSR RTS CTS RI
NOTE: The black round mark "z" indicates soldering.
1 2 3 4 5 6 7 8 9
Parallel Loopback Tool : For diagnostics of parallel port
PARALLEL LOOPBACK CONNECTOR CONNECTION DIAGRAM
� Connector Types DB25P(Male) � Interface Standard Centronics � Loopback Status to Commands
DB25P -STROBE D0 D1 D2 D3 D4 D5 D6 D7 -ACK BUSY PE SLCT
NOTE: The black round mark "z" indicates soldering.
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
-AUTO FD -ERROR -INT -SLCT IN GND GND GND GND GND GND GND GND
Confidential
PCGA-PRFX1 (UC) 2-2
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