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There are currently no product reviews.
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Exactly what was needed to assess the product - excellent value and great service
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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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IC751 (Pin 8)
Check the following points when the source is Multi ch. IC751 (Pin 27) Is there abnormality at the parts and patterns in the path?
Check the following points when the source is Multi ch. LSCD Is there abnormality at the parts and patterns in the path?
A
Is there No a audio data (with Sch source)? Yes IC701 (Pin 27) (CDT)
No
Is there No a audio data (with Cch source)? Yes IC401 (Pin 10)
No Replace IC751 or IC401.
Replace IC701 or IC751.
Is there No a audio data (with Cch source)? Yes IC751 (Pin 12) Is there No a audio data (with Cch source)? Yes IC701 (Pin 26) (BDT)
Is there abnormality at the parts and patterns in the path?
No
Is there No a audio data (with Cch source)? Yes IC751 (Pin 26) LSBD
Is there abnormality at the parts and patterns in the path?
No Replace IC751 or IC401.
B
Replace IC701 or IC751.
Is there abnormality at the parts and patterns in the path?
No
Is there No a audio data (with SBch source)? Yes IC401 (Pin 11)
Is there abnormality at the parts and patterns in the path?
No Replace IC751 or IC401.
C
Replace IC701 or IC751.
Is there No a audio data (with SBch source)? Yes IC751 (Pin 15) Is there No a audio data (with SBch source)? Yes IC751 (Pin 28) LSSD
Is there abnormality at the parts and patterns in the path?
No
Is there No a audio data (with SBch source)? Yes
Is there abnormality at the parts and patterns in the path?
No Replace IC751 or IC401.
Replace IC701 or IC751.
IC401 (Pins 22,21) SLO, SRO Is there abnormality at the parts and patterns in the path?
No
Is there a analog audio output (with Sch source)? Yes
No
Check the parts and patterns (short-circuit) in the path including the DSP assy and others. No Replace IC401.
D
Replace IC701 or IC751.
IC401 (Pins 20,19) CO, SWO Is there abnormality at the parts and patterns in the path?
Is there No a audio data (with Sch source)? Yes IC401 (Pin 9) Is there No a audio data (with Sch source)? Yes
No
Is there a analog audio output (with Cch source)? Yes
No
Check the parts and patterns (short-circuit) in the path including the DSP assy and others. No Replace IC401.
E
Replace IC751 or IC401.
IC401 (Pins 18,17) SBLO, SBRO Is there abnormality at the parts and patterns in the path?
No
Is there a analog audio output (with SBch source)? Yes
No
Check the parts and patterns (short-circuit) in the path including the DSP assy and others. No Replace IC401.
Replace IC751 or IC401.
O
F
VSX-LX50
5 6 7 8
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