|
|||||||
| Home | Forums | Rules | Articles | Store | Gallery | Blogs | Register | Donations | FAQ | Calendar | Search | Today's Posts | Mark Forums Read | Search |
| Solid State Talk all about solid state amplification. |
  |
|
|
|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving |
 |
|
|
Thread Tools | Search this Thread |
30th August 2011, 01:23 PM
|
#1 |
|
diyAudio Member
Join Date: Nov 2005
Location: Milwaukee, WI
|
MC250 Input Section Voltage Question
I just purchased a MC250…. This is my first McIntosh amp.
When checking the voltage on the input section printed circuit board I noticed that the voltages at C55 and C56 where at +/-20V instead of +/-15V per the schematic. I changed R111 and R112 from 3.3K to 5.6K to get the correct voltages It looks like the input section uses 4.4mA. R111 and R112 now drop about 24.6V (5.6K * 4.4mA= 24.67V) The schematic I have is for PCB 043-795 My amp uses PCB 044-557 Does anyone have a schematic for PCB 044-557? Does this fix make sense? Thank You |
|
|
| Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | Search this Thread |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Amplifier Input Voltage Question | AudaciousQuip | Car Audio | 3 | 24th August 2011 02:39 AM |
| accuphase E205 240v input section | sakis | Solid State | 6 | 19th September 2009 04:16 PM |
| Phase Linear 700 input section question | taj | Solid State | 1 | 10th July 2009 05:24 PM |
| Stasis Voltage section | BrianEno | Pass Labs | 2 | 29th June 2009 03:17 PM |
| Kicker SX650.1 Input Voltage Question | Flyin11 | Car Audio | 3 | 20th May 2008 12:24 AM |
| New To Site? | Need Help? |
| Page generated in 0.06582 seconds (66.50% PHP - 33.50% MySQL) with 10 queries |
