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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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(1) In a case where the power is not turned on (the POWER LED does not light)
RX side
A
No power (The POWER LED does not light.)
Insert the FFC correctly.
No
Is the FFC correctly inserted? Yes
Is the POWER LED lit?
B
No
Yes
Is the fuse blown?
No
Is the protection circuit in IC11 and/or IC14 broken? Yes Replace IC11 and/or IC14.
No
Check that the circuits are not short-circuited. As the circuit for +9 V is most likely to have been shortcircuited, check the circuits around IC15.
Yes Replace the F1 fuse. Yes
C
Yes
Is the POWER LED lit?
No
Is the POWER LED lit?
No
Yes Inspection completed.
Yes
(2) In a case where no sound is output
D
RX side
No sound
Check the electric potentials at each point of the module.
No
Is TUNED lit?
Yes
E
Check the circuits around Q3455 and Q3454.
No Is the relay on?
Yes
Replace IC12 and IC13.
No
Is +B voltage active?
Yes
F
56
1 2
XW-HT1
3 4
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