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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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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
IC DESCRIPTION - 3/9 (M12L16161A-7T)-2/2
Pin No. Pin Name I/O Description This pin determines whether or not the next CLK is valid. If CKE is High, the next CLK rising 34 CKE I edge is valid. If CKE is Low, the next CLK rising edge is invalid. This pin is used for powerdown and clock suspend modes. 35 CLK I CLK is the master clock input to this pin. The other input signals are referred at CLK rising edge. DQM controls input/output buffers. - Read operation: If DQM is High, The output buffer becomes High-Z. If the DQM is Low, the 36 UDQM I output buffer becomes Low-Z. - Write operation: If DQM is High, the previous data is held (the new data is not written). If DQM is Low, the data is written. 37 38 39 40 41 42 43 44 45 46 47 48 49 50 NC VCCQ MD8 MD9 VSSQ MD10 MD11 VCCQ MD12 MD13 VSSQ MD14 MD15 GND � � I/O � I/O � I/O � � I/O Not used 3.3 V is applied. (VCCQ is for the output buffer.) Data is input and ouput from these pins. These pins are the same as those of a conventional DRAM. Ground is connected. (VSSQ is for the output buffer.) Data is input and ouput from these pins. These pins are the same as those of a conventional DRAM. 3.3 V is applied. (VCCQ is for the output buffer.) Data is input and ouput from these pins. These pins are the same as those of a conventional DRAM. Ground is connected. (VSSQ is for the output buffer.) Data is input and ouput from these pins. These pins are the same as those of a conventional DRAM. Ground is connected. (VSS is for the internal circuit.)
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