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Re: SLV 940 HF
Is it having trouble either loading or ejecting the tape? If so, then something is probably awry in that mechanism. Take the top cover off and watch a load or eject operation. If tape isn't fully loaded, and tape threaded, then an error condition will result, as will be the case if it won't eject.
Causes include a broken piece of the load mechanism (also called cassette carriage or carriage mechanism), broken or cracked gear. If the mechanism is gear driven, timing is critical, just being out of time one tooth will foul things up. There are often marks on the gears which must line up exactly in a particular mode as specified in manufacturer service literature.
Most VCRs since the early '90s are disposeable, very prone to breakage, in contrast to early units which were made like tanks, costing $400 plus.
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P2004 - Intake manifold runner control (IMRC) stuck open (bank 1) Description - This DTC is set when the IMRC is commanded closed, but the IMRC monitor indicated open. This DTC replaces P1518 and P1537.
Probable causes - IMRC monitor signal circuit shorted to PWR GND or SIG RTN - Damaged IMRC actuator or solenoid - Blocked vacuum hoses
Diagnostic aids - Monitor the IMRC and IMRCM PIDs. The IMRCM state should change when the IMRC is commanded open or closed.
This control valve generally is located on the back of the intake.
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open the cpu cabinet and remove the dust by any means. next, remove the ram, clean the ram, clean the ram slots and put it back. also, try drying the cabinet as this may be due to moisture getting absorbed in the cabinet due to being in a less ventilated place.
Probalby the only way to get stucked tape out of a player is in pieces. Then repair the cassette and clean your player. If it keep stcking tapes, dispose it.
By the way, cassette tapes an players are rather obsoleteby now. Any digital source is better quality the a cassette.
Could be that its out of time. Sometimes if a gear slips, even a tooth, this will cause sync problems. When you have the top off, put a tape in, watch it load and come back out. See if the tape is comming all the way back. If its not, its out of time. When you have the top off, the vcr is light senitive. Use something to block the light or it will not load or play, it will just eject the tape. Hope this is helpful.
sounds like a defective cassette housing, but i have seen problems with jvc decks and camera when tdk or maxell tapes were used. the lids on these tapes seem to get stuck in the cassette housings in jvc equipment. jvc even recommends that tdk and maxell tapes be avoided.
Defective mechanism, a stucked mechanism is present. camcorder are smart it can detects error and shuts down itself for safety. earlier models dominoes the defect if the user is not quick enough to react when something goes wrong with the camera. You need professional service to fix it. Check your tapes carefully, most cause of this trouble are due to defective tapes, especially sony brand, I recommend you use TDK tapes. never force open any unit, it will only make things worst!!! [;0)
If your tapes are getting stuck, then most likly it is not a cleaning issue, but a mechanical problem. It would be something in the take up supply reel mechanism. Like a bad clutch, take-up gear or idler, and /or a bad or broken belt.