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High quality scan of original Service Manual. Everything´s fine!
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Good scan of the original service manual. All schematics and adjustment procedures are there. It helped me to fix a long lasting problem with the tracking circuitry. The manual also includes the supplementals 1,2 and 3. Included are; electrical schematic's , pcb layout's, mechanical drawing's and exploded views, disassembly manual and maintenance procedures. 236 pages.
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The Service Manual received was helpful. The electronic information is exactly what I needed.
I recomend all of my friends about this technical page.
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High quality scan of service manual. I am satisfied!
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Excellent copies.
I will use "Owner Manual" again a second time.
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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
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XW-HT1
3 4
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