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Re: Arcam CD73 fault
Hi there. I would check the power supply rails, you have probably lost a volatge about the Audio line output /DA stages. Check voltage reg packs, they fail alot. I have repaired a few of these over the years, hit me back if you need to go further.
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There are two types of input for sat/cable in your amplifier. One is the Digital input and the other is the Analogue input. You didn't specified which one is currently used by you. However, if you connect the digital input then you have to configure the input assignment to digital and for analogue input configure as analogue.
If you use analogue input and input assignment is in digital mode then the problem mentioned by you can occur.
First of all check the inputassignment for sat cable. for that do the following
1. Press the menu button on the amplifier's remote.
2. Select input setup
3.select input assinment ( check the input assignment for sat/cable, If you are using the analogue
input select it as analogue,if your are using the digital input then select it as digital.
So it is the fault with the display unit unless the video processing section of the dvd is faulty. So cross on the display unit if there is indication of the mode then the display is Ok and the fault is centered on the DVD.
The Digital to Analogue convertor can be faulty so that there is no video output to the display.
The unit may need expert attention.
If you have the whole Z5500 package you could run the Arcam's optical- or coaxial digital audio output to the corresponding input on the Logitech.
But I'd be careful about letting BOTH the Arcam and the Logictech perform Digital Sound Processing on the sound. DSP's aren't meant to be stacked. My money says the Arcam is better in the DSP department than the Logitech.
If you have just the sub, run the Sub PRE out from the Arcam to the Sub/Center input (adapt it to 3.5 mm) on the Control Center and set the switch to "6 ch direct".
The problem (Known to Arcam) is with the some diodes in the power supply to the DSP board. Over time they do not work properly and the power fluctuation makes the sound distort. They need replacing (only once to a higher spec) if you contact Arcam they can advise you.
The problem has cleared itself a day later after being switched on/off a few times.I suspect the 'computer part' of the TV (channel processor, instruction decoder etc) received maybe a power glitch or an illegal infrared instruction (2 remotes used at once for example) and 'locked up' leaving just the analogue side operating. I was going to continue happily using it with just the analogue side slaved to my Hd recorder for digital signals but it seems to have got over whatever it was that upset it.
I too had this problem and was resigned to having the laser mech replaced.............BUT! i opened up my unit (it was long out of warranty) and was suprised at the amount of lubricant on the cog that drives the laser and the track upon which it runs.most of the grease had been pushed to either end of it's travel and as a consequence my unit would cut out particularly at the start and end of CD's as the laser struggled to move and track the disc as it should. Since removing this excess lubricant (with a dry toothbrush) i have enjoyed over six months of trouble free listening. From searching online forums it would seem that many people have experienced similar problems with this transport - a Sony KSM213CCM - and have replaced the entire mech! it would appear that someone a the factory has been a little over enthusiastic with the lubricant! Hope this fix is of help
These are a cool old machine. They use the cdm1 laser mechanism that was revered in its day for high performance. If you have voltage available after the rectifier stages, check the 3 pin voltage regulators. Marked as 78xx for positive regulator, and 79xx for negative. the xx gives you the voltage they are supposed to be putting out. They commonly fail, also check the same for dry solder joint. resolder them anyway if you are unsure. If all the regulators check out, then also check low value flame proof resistors in the power supply rails. Get back to me here again and let me know how you got on. Good Luck
If the picture & sound are ok in analogue mode then chances are you have problem with digital tuner.
This may be expensive to repair so I would advise connect external freeview box or sky etc to get digi channels using scart to connect to your TV.
Check the cable between the media centre and bass module for signs of damage (if its buried in the wall / under the floor and you can't check it, assume it could be damaged).
however, this sounds like a fault with the Digital Analogue Converter - this coverts the digital audio on a disc to analogue information the amplifer can use to produce sound. Contact your retailer for exchange / repair.....