Morley flanger schematic diagram

[artstomp]

...i scored a Morley deluxe flanger MOD-FLB...no wet signal...is anybody around here have a schematic diagram?

tnx in advanve guys!

[Scruffie]

Morley has a lot of their schematics for free on their site, try google.

[artstomp]

..lots of Morley schem on google but no luck..can't find  the MOD-FLB deluxe flanger...maybe i'll just post the voltages on key points on my morley..and ask for help from you guys..tnx

[Scruffie]

Yeah should be able to check for anything obvious with voltages, the schematic will be useful if you have to audio probe though, I might have it, but it'll be a few days before I check

[artstomp]

..oh tnx scruffie...really appreciate it.

[Govmnt_Lacky]

Hopefully it's not the BBD. They soldered those directly to the PCB on those models.... and its the SAD1024 

[Scruffie]

Lacky you should know better than to encourage suspecting the BBD is bad as first port of call...

[artstomp]

..hey guys..good thing my Morley flanger's SAD1024A is socketed...

[Govmnt_Lacky]

Lacky you should know better than to encourage suspecting the BBD is bad as first port of call...

It was not by design. I was looking up the info and all of the gut pics I saw were with the BBD soldered directly. It is quite rare to see that.

As always... rule out EVERY possible source BEFORE calling the BBD dead. Looks like the bypass runs on the good old "remove the delayed portion of the signal" routine. I would start there and ensure that the switching is working properly.

On a side note... I was able to find a schematic for this device however, it was hand drawn and had an MN3007 in it. 

[artstomp]

Morley Flanger voltages...

SAD1024
pin1   0        pin16  0
pin2   2.6     pin15  2.6
pin3   5.5     pin14  2.6
pin4   0        pin13  5.5
pin5   0        pin12  0
pin6   0        pin11  0
pin7   11.1   pin10    5.5
pin8   5.5     pin9    11.1


CD4047
pin1   0        pin14   11.1
pin2   11.1   pin13   0
pin3   4        pin12   0
pin4   11.1   pin11   5.5
pin5   11.1   pin10   5.5
pin6   11.1   pin9     0
pin7   0       pin8      0

MC34043P
pin1   5-11   pin14   5.8
pin2   4.8     pin13   5.8
pin3   4-6     pin12   5.8
pin4   11.2   pin11   0
pin5   5.8     pin10   5.8
pin6   5.8     pin9     5.8
pin7   4-6     pin8     5.8

TLO74
pin1   7.3     pin14   2.6
pin2   7.3     pin13   2.6
pin3   7.3     pin12   2.5
pin4   11      pin11   0
pin5   5.7     pin10   2.6
pin6   5.8     pin9     2.6
pin7   5.8     pin8     2.6   

14007UB
pin1   -2.4   pin14   11.1
pin2   -2.4   pin13   11.1
pin3   7       pin12   11.1
pin4   4.1    pin11   11.8
pin5   4.1    pin10   5.7
pin6   0      pin9      5.4
pin7   0      pin8      0

SAD1024 socketed !

[Govmnt_Lacky]

Well.... Looks like you are getting a clock into the SAD1024 however, it does not look like anything is coming out at all (Pins 5, 6, 11, and 12 are all 0)

Also.. something is wrong with the MC3403P. You should be seeing 0V on Pin 11.

Scruffie might have a better idea on this as I think he might have the schematic.

[artstomp]

Gov'...you're right..it should be 0v...my mistake...tnx...

[Govmnt_Lacky]

The fact that there is NO voltage on any of the SAD1024 outputs leads me to believe you definitely have some issues there. Your clock voltages look off as well.

A schematic would help.. 

[Scruffie]

11V seems like an odd supply voltage so to start, assuming it has a regulator, what's the part number?

I don't have the SAD version schematic it seems but for now let's assume the 3007 version is close and it should be a 9V regulator... could be faulty.

[artstomp]

..yes scruffie it has a regulator 78L09...and my power source says its 9V..but has an 11.22v reading on my digital multimeter...