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Providing the manual works fine, quickly and without any problems for an acceptable price. After printing the service manual it took me only a short time to repair my carradio from Clarion. Thank You! Greetings from Heiko
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I was searching a way to modify the original phono-in entry (for connection of vynil disc player, with RIAA equalization) to a line-in entry (for connection of modern analog entries, eg. ipod, mp3player).
This service manual gave me the correct hints.
It contains very useful infos for repairing and modifing the hi-fi, such as disassembling instructions, block diagrams, schematic diagrams, PCB prints, replacement parts list.
Very good!
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Great Job!!! clear and efficient as always!!
it is really nice to have peple that are doing such a good work!!!!!
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I must admit, I was very skeptical... $4.99 for a 74 page service manual. I've seen some very poorly scanned manuals on the Internet, but this one is VERY good quality! Even when zooming into 500%. Great Deal!
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Very good detail, Quick service response. A useful service manual with all details. I recomend this service.
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Recovery flowchart (1-1)...Changing the Vol Offset setting voltage
Note: Disregard the discharge that may appear during voltage-change setting.
[From the main flowchart (1)]
Display RST MASK 09 (light blue). / [MKS S59]
� If RST MASK 09 (light blue) is already displayed, skip this step.
B
Set VOL OFFSET to the setting value 000. / [VOF 000] � This setting becomes VOL OFFSET_min1.
Gradually increase the VOL OFFSET value until disappear the discharge (lit cell). The VOL OFFSET value must be 245 or less.
VOL OFFSET_min1
Note: Make a note of this VOL OFFSET_min1 value.
VOL OFFSET_min1
C
155?
No
Replacement of abnormal circuits or re-replacement of the panel required
Yes Display RST MASK 10 (light purple). / [MKS S60]
Set VOL OFFSET to the setting value 000. / [VOF 000] � This setting becomes VOL OFFSET_min2.
Gradually increase the VOL OFFSET value until disappear the discharge (lit cell). The VOL OFFSET value must be 245 or less.
D
VOL OFFSET_min2
Note: Make a note of this VOL OFFSET_min2 value.
VOL OFFSET_min2
155?
No
Replacement of abnormal circuits or re-replacement of the panel required VOL OFFSET_min
Yes Choose the higher value between VOL_OFFSET_min1 and VOL_OFFSET_min2, and set it as VOL_OFFSET_min.
[To the Recovery flowchart (1-2)]
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PDP-4280HD
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