DL4 won't power-help

[hammy9]

Hi my DL4 won't power up.  I've been reading other sections of this forum on the topic and went through measuring voltages.  I wasn't getting anything on Pin7 of U14 (MAX887) which is supposed to be 3.3v, so I replaced it and am still not getting any reading.  I was testing it with batteries hooked up because everytime I plug in the AC adaptor (from line6) it blows my D16 Zener.  I'm not the greatest at debugging this type of thing.  Any help is greatly appreciated. Thanks!

[hammy9]

Here's some more info:
When I plug the cable into the input jack, I get a sound like a camera flash charging.  Once it reaches it's highest frequency it keeps whining.  Bad Cap? C40?

VOLTAGES:
4 'C' Batteries (input unplugged): 4.8v
with input plugged in: 3.1v
(D12 anode: .01v)
D12 Cathode: 3.1v
C39 (side facing outer edge): 3.1v
C40 anode: 3.1v
Max887-
Pin 8:  3.1v
Pin7:   .92v
Pin6:   3.1v
Pin5:   .01v
Pin4:   3.1
Pin3:   1.3
Pin2:   .318
Pin1:   3

Any more info you would like?

[slacker]

According to this http://www.thegearpage.net/board/archive/index.php/t-466151.html it runs off 9 volts AC which then gets rectified to 12 volts so if you're testing it with C batteries you'd need 8 to get 12 volts. Sorry i don't know anything else about it.

[hammy9]

The battery spot in the pedal is made for 4 C batteries.  That's what it takes.