[Alinco] Alinco DR-110 schematic needed

[Ken Simpson, W8EK]

I am looking for the schematic for the Alinco DR-110 Two meter rig. 
The DR-112 is basically the same thing.

I have a DR-110 that works fine, except for one thing.  It has no 
receive audio output.  All indications on the display are that it is 
receiving OK, and I can adjust squelch, etc, and see the "busy" light 
come on at the proper time.  I have tried other speakers, and an 
external speaker as well.  No, it is not the tone squelch setting as 
1) I did a complete reset of the radio which would have cleared that 
2) I can turn that on and off, and transmit either with or without a 
sub tone, and the busy light does just like it should.  Just no audio.

I have the service manual (and operators manual), but it does not 
include a schematic.  Seems odd to have a parts list, but not a 
schematic, but.....

Any help?

Thanks.

73,

Ken, W8EK

Ken Simpson
E-mail to W8EK at FLHam.net or W8EK at arrl.net
Voice Phone  (352) 732-8400