Posts by quattttro
68 total posts59 results
Beolab Penta MK2 Amp Rebuild Question
in BeoLab · Sept 5, 2024 16:01I'm rebuilding a set of Beolab Penta MK2s. The amp keeps burning through the NPN output transistors when powered on (on a dim bulb, nonetheless). I've recapped the board, changed adjustable resistor (R95), and fixed a fe…
Does anyone need any VX5000 parts?
in BeoVision · Feb 6, 2024 06:52I have a non-working VX5000 that I've decided not to restore and would hate to throw out. No way I'm going to re-cap this thing. Might be the most complicated electronic device I've ever had the pleasure to work on. All …
How to connect a 5500 or 6500 system to speakers and a tv
in BeoSystem · Jan 11, 2024 04:13I use my 5000 system with a modern TV. Use the HDMI ARC output from the TV to an HDMI DAC. The HDMI DAC will give you RCA analogue outputs you can plug into your Beomaster. You might need a DIN to RCA converter as well.
Beocord 8002: Did I get the capacitor orientation correct here?
in BeoCord · Jul 21, 2023 21:09Dillen wrote: The “solid” marking indicates ground. That’s not necessarily the capacitors negative pin because some capacitors work with negative voltages. The best reference is what the factory fitted (though that is no…
Beocord 8002: Did I get the capacitor orientation correct here?
in BeoCord · Jul 21, 2023 13:52I realize that, it's just that on at least one of these caps, the positive goes to the solid, filled-in side of the label, whereas normally, the solid part of the label indicates negative (-).
Beocord 8002: Did I get the capacitor orientation correct here?
in BeoCord · Jul 21, 2023 01:58Glitch wrote: If all else fails, verify that the electrolytic capacitors are forward biased with a voltage measurement. Thanks. I don't think the markings are incorrect, I just found them somewhat counterintuitive. Thank…
Beocord 8002: Did I get the capacitor orientation correct here?
in BeoCord · Jul 19, 2023 04:24This is board #3, playback/bias, on a Beocord 8002. Looking at the schematic, it seems sometimes the positive and sometimes the negative end of the cap goes to signal ground, so I just want to make sure I got it correct …
Is the TC9177P IC4 a common failure on the Beomaster 6500 pre-amp?
in BeoMaster · Jun 22, 2023 02:08If you look at the first post, you will see C54 is missing. I believe that was why it was behaving strangely. I forgot that one!
Is the TC9177P IC4 a common failure on the Beomaster 6500 pre-amp?
in BeoMaster · Jun 21, 2023 15:21Thanks for the info, I just managed to resolve it though with an old Harmony remote. The balance was indeed set to full right channel. Everything working now.
Is the TC9177P IC4 a common failure on the Beomaster 6500 pre-amp?
in BeoMaster · Jun 21, 2023 01:36Glitch, I do have an oscilloscope, will try to probe the signals, not sure what to look for though. Tested all of the grounds, all good. At this point, it might be best if i find a proper remote If the backup battery has…
Is the TC9177P IC4 a common failure on the Beomaster 6500 pre-amp?
in BeoMaster · Jun 19, 2023 17:44I've replaced TC9177P, but the problem of no sound on the left channel remains. I get a perfect sine wave at the inputs for this chip (pin 5 & 16), but nothing on the first outputs for the left channel (pin 17 &4). The +…
CDX 2 Repair , almost there..
in BeoGram · Jun 10, 2023 15:00How's the plastic standoff that holds the lid/motor gear shaft? Mine was cracked quite badly.
Beogram CD 5500 right channel no sound
in BeoGram · Jun 10, 2023 14:42I would check the relay first. Perhaps the right channel isn't making adequate contact.
What are you working on now?
in General Discussion & Questions · May 30, 2023 02:00Currently working on a Beogram CD 3300. The magnet came unglued from the spindle motor, causing all sorts of friction. Fixed that, now it won't come out of standby (relay won't activate) despite showing 0.00 on the displ…
Is the TC9177P IC4 a common failure on the Beomaster 6500 pre-amp?
in BeoMaster · May 19, 2023 01:28Thanks for the reply, I will do some further testing if a replacement chip doesn't solve the issue. The relay cover is only off for testing. I checked there first for for the fault.
Is the TC9177P IC4 a common failure on the Beomaster 6500 pre-amp?
in BeoMaster · May 18, 2023 04:41I've got no sound from the left channel and irregular volume levels on the right from the pre-amp. I've traced the signal to the inputs of IC4 (Toshiba TC9177P), but nothing on the left channel output of that chip. The +…
What are you working on now?
in General Discussion & Questions · May 1, 2023 22:28Beomaster 5000. I'm shocked it worked, given how many bad caps it seems to have. It did not sound good though.
Beomaster 6500: No remote response.
in BeoMaster · Apr 13, 2023 18:17STOP and OFF gives me two options, "OPTION?" and "CONFIG?" I'm safe to assume there is no way to turn off Hotel Mode, right? EDIT: I have a few of these "hotel" remotes. On the second one, pressing OFF and TEXT brings up…
Beomaster 6500: No remote response.
in BeoMaster · Apr 13, 2023 17:38Thanks Guy, that sort of worked. The BM6500 did respond to the '1' after A.OPT. It showed a 1 in the display. In mode 1, however, I still get no response from the receiver, but at least I now know it's able to respond to…
Beomaster 6500: No remote response.
in BeoMaster · Apr 13, 2023 05:00My newly acquired BM6500 seems to power-on correctly, but won't respond to remote commands from my Beo4. I traced the remote signal from the IR receiver all the way to IC1, and the signal looks good (see pic), but the re…