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Author Topic: Help! Looking for EDIROL R4 PRO schematics or service manual... anyone have it?  (Read 1668 times)

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Offline florian.ardelean

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Hi guys!

I just got a used EDIROL R4 PRO recorder for less than 50 Euros. Everything works except headphone out, analogue line out, and XLR inputs. AES works flawlessly and so does Timecode. The recorder only works with internal microphones (records to hard drive but no output)

I figure it's a preamp problem, since the AD converter works (not sure about the D/A though - no way to test it)

So I'm hoping to fix it, and use it as a backup recorder.

I can't find any schematics though! Since it's such an old recorder, Roland won't support it. I'm hoping you guys can help? I managed to find schematics for a tascam DR680 MKi at some point from someone at Tascam, so I still have that somewhere, but Roland isn't so forthcoming with these kind of things...

Thank you!
Recorders: SD 744T Tascam HDP2 Sony D50 Olympus LS100 Zoom H2 Tascam IM2
Mixers: SD 422 SD 302 Mackie VLZ4
Microphones: Rode NT2A x 2 - Sanken CS1 - Senn MKH415T x 2 - Senn MKH40 - AKG D190 - Sennheiser MKE-2-Gold - Sennheiser MKE 40 - Audio Technica CC417
Headphones: Sennheiser HD280 x 2 - KRK KNS 8400 x 2 - Beyer 880 - Senn HD 590 - Senn HD201
Headphone amps: Sound Devices HX3 - Presonus HP4
Studio: Protools 9 HD2x2 - Digidesign C24 - Tascam 1804 - Mbox Mini 2 - Macbook with Reaper
Monitoring: JBL 4675Cx3, JBL 8340Ax2, Behringer B2030Px3
Subwoofers: Altec Lansing LFx3, JBL 18', Dynaudio BM14s
Macpro 1.1, MBP 13 2011, HP xw8600 x 2
Storage: Facilis Terrablock 24D

Offline caymanreview

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id almost bet that if you contacted Doug Oade and asked him for it, he would be willing to help you out with a copy. surely if anyone has it, it would be him.


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