- service manual needed for HP Officejet 8710 - 4 Updates
- CD player strange behaviour - Aiwa CX-N500Z (NSX-500) - 1 Update
| Amanda Riphnykhazova <licensedtoquill@gmail.com>: Oct 10 11:31AM -0700 my printer has jammed and I need a service manual to see where an unconnected end of a 3mm wide transparent strip needs to be connected to. It seems to go from the left to somewhere behind the print head. or does anyone know what HP's internal reference number is for the 8710? |
| Amanda Riphnykhazova <licensedtoquill@gmail.com>: Oct 10 11:46AM -0700 On Tuesday, October 10, 2023 at 2:31:37 PM UTC-4, Amanda Riphnykhazova wrote: > my printer has jammed and I need a service manual to see where an unconnected end of a 3mm wide transparent strip needs to be connected to. It seems to go from the left to somewhere behind the print head. Sorry, to explain, it is called a timing strip and the right end that has come out can be sorta seen at 7.26 on https://www.youtube.com/watch?v=rOQ1qKCyz5o I assume installation can be seen in the service manual? |
| legg <legg@nospam.magma.ca>: Oct 10 07:07PM -0400 On Tue, 10 Oct 2023 11:46:22 -0700 (PDT), Amanda Riphnykhazova >> my printer has jammed and I need a service manual to see where an unconnected end of a 3mm wide transparent strip needs to be connected to. It seems to go from the left to somewhere behind the print head. >Sorry, to explain, it is called a timing strip and the right end that has come out can be sorta seen at 7.26 on https://www.youtube.com/watch?v=rOQ1qKCyz5o >I assume installation can be seen in the service manual? If there's no physical detail on the detached end, to register with hook or pinch detail, it may be broken - check for missing piece remaining in the area. Unusual for this to break. Sometimes needs cleaning . . . RL |
| Amanda Riphnykhazova <licensedtoquill@gmail.com>: Oct 11 09:31AM -0700 You are absolutely right: The strip ends in two rounded forks. They were obviously joined at the end. Looking at the new one, there was originally a lengthened hole at the end to hook (a spring) onto. The bit of transparent end piece that went across the two forks is still in there somewhere. Now I have to determine whether to order a new strip for ten bucks. This is a machine that was just given to me, presumably because it didn't work, what with a broken encoding strip in there! It looks easy to install but very difficult to get to. This unit has a dreadful reputation for reliability and for giving endless stupid error messages instead of working properly. And HP's tech support (or lack thereof) shows me that the manufacturer won't stand behind his product. Does anyone think doing all this work to get this thing working is worth the bother? Am I setting myself up for a lifetime of endless stupid error messages? To add insult to injury, I was given this while throwing away a hitherto reliable Canon MX860: which that manufacturer WOULD stand behind and which always worked properly until it started to give out B200 ("This unit has died") error messages |
| Jeroni Paul <JERONI.PAUL@terra.es>: Oct 10 11:03AM -0700 I am looking at the CD player part of an Aiwa CX-N500Z (NSX-500), many times does not focus when a disk is loaded, but retrying sometimes starts and plays the disk perfectly all the way. I have swapped the entire optical pickup assy from an identical working unit and the problem is in the drive electronics, not the pickup. Both pickups work fine one one unit and both fail the same way in the other. Mostly Sony parts, pickup: KSS-210A, ICs: CXA1081A, CXA1082BQ, CXD1167Q, BA6296FP. I have scoped some signals, when it its trying to focus the FOCUS-OK signal from CXA1081A activates momentarily but nothing happens, this should trigger the servos and start of spindle motor. Sometimes the focus locks and disk starts to spin and suddently loses focus for no obvious reason. However while playing it does not lose focus easily, buttons FF or REW behave fine, but jumping tracks sometimes cause it to lose focus. A secondary sympthom (maybe related) is when playback is stopped through the stop button, the sled returns home and at the end the sled gears slip some teeth because the inertia, the motor does not brake in time. BUT if playback is stopped with the stand-by button instead, it does the same without teeth slippage, because it brakes. I ran some tests shorting the switch contacts and with the Stop button the sled moves some extra millimeters due to inertia. I can't explain how the BA6296FP can stop the motor without brake as its MUTE signal is wired to Vcc. |
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