Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Help with a Marantz 2220B receiver
#12

Hi Mike.
Finally getting time to work on this again.

On your last note where you wrote "bad 807" were you refering to R807, H807 or C807?

There are 4 wires on the J808 contact. I removed them all and E/B voltages on H806 are 16V/15V.

Here's what I checked/replaced.

H807 Zener diode replaced
H806 transistor replaced
R805 checked OK
R807 checked OK
C809 Replaced in recap

C807 is a ceramic cap .04 uf. Can I replace it with a film cap? They list C806 as a .047 film and C807 as .04 ceramic. Why did they use a ceramic cap here?

Thank you Mike!


Messages In This Thread
RE: Help with a Marantz 2220B receiver - by morzh - 03-02-2015, 09:46 AM
RE: Help with a Marantz 2220B receiver - by morzh - 03-02-2015, 11:37 PM
RE: Help with a Marantz 2220B receiver - by morzh - 03-03-2015, 12:02 PM
RE: Help with a Marantz 2220B receiver - by morzh - 03-07-2015, 12:26 PM
RE: Help with a Marantz 2220B receiver - by morzh - 03-09-2015, 10:18 PM
RE: Help with a Marantz 2220B receiver - by thirtiesradio - 03-19-2015, 04:07 PM
RE: Help with a Marantz 2220B receiver - by morzh - 03-19-2015, 04:31 PM
RE: Help with a Marantz 2220B receiver - by morzh - 03-20-2015, 10:37 AM
RE: Help with a Marantz 2220B receiver - by morzh - 03-21-2015, 11:03 AM
RE: Help with a Marantz 2220B receiver - by morzh - 03-21-2015, 09:07 PM
RE: Help with a Marantz 2220B receiver - by morzh - 04-19-2015, 05:12 PM
RE: Help with a Marantz 2220B receiver - by morzh - 09-13-2015, 04:37 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 46-420 Code 121 Reception issues
You mentioned the Philco manual and going through the check points...just to be sure we're on the same page here's the m...klondike98 — 08:13 PM
Philco 42-1008 conversion kit
Interesting. I haven't seen that before.klondike98 — 07:02 PM
12' Philco
Yes I had looked for it on the web as well some time back and could not find it. I was glad to see it turned up in Ron'...klondike98 — 06:59 PM
Shadow Meter Bulb
Now if you had a set with a tuning light then the bulb type is important to the circuit, some sets used those prior to t...Arran — 04:58 PM
Shadow Meter Bulb
Ok. Thanks for the correction.RossH — 03:09 PM
Model 28L
For 28 you will probably need to buy a Hammond 125CSE. Or any of the series of the power you need, with SE suffix. Then ...morzh — 02:09 PM
37-60 revision 6
I am restoring a Philco 37-60 and it shows run 6 they removed the ground from G3 of the 6K7G and put the G3 to -2.5v for...bobbyd1200 — 01:01 PM
Shadow Meter Bulb
Mike is correct on the bulb connection, two separate circuits. I found that by rotating the bulb and sliding it forward ...RodB — 12:19 PM
Hickok AC51 tube tester
Cleaned ann contacts, switches and sockets, works great now.martinj — 11:32 AM
Model 28L
Hello, I'm restoring a Philco 28L and the output transformer is open. Part number of the transformer is 32-7020. Can...HORSTE — 10:32 AM

[-]
Who's Online
There are currently 4546 online users. [Complete List]
» 3 Member(s) | 4543 Guest(s)
AvatarAvatarAvatar

>