[Hallicrafters] SX-28A Help

[jim]

This is a question for a SX-28A expert out there.

Well, I've really done it now.  Elmer has struck.

A wax cap was heating up in the RF Deck after the radio played for a 
while, so I went in and replaced the bad caps and resistors in the 1st, 
2nd, and mixer boxes. Not fun.  I really didn't want to, but I didn't 
see an alternative.  I marked all the wires as I dis-assembled.
. 
When I got to the point to hook up the wires connecting to the 4 pins on 
the top of each metal box I found the wire marker fell off a blackish 
wire.  It looks like it should connect to one of the 4  the mixer box 
pins, but I don't know which one.  It doesn't seem long enough to reach 
much of the other boxes but I suppose it's possible to get to some of  
the 2nd stage.

The "mystery wire" is blackish color, and I think it goes to a terminal 
strip connector.  A 1K resistor goes from that terminal strip connector 
to the 6L7 pin 4.  I think it should connect to 1 of the 4 pins on top 
of the metal mixer box but I can't figure out which one.

Does anyone have a diagram of the wire connections to these boxes?


As SX-28A is on side with IF cans on top, from bottom of chassis the 
view looks like this:  (Oscillator box not shown)                    

<==Front                                                Rear   ====>

  1    2    3   4                5       6        7       8            
9   10    11   12
  |    |    |   |                      |       |        |          
|              |      |       |      |
|--------------------|      |---------------------|     
|--------------------|
|   Mixer Box           |      |  2nd                        |     |  
1st                       |
|                              |      |                                
|     |                             |
|                              |      |                                
|     |                             |
|                              |      |                                
|     |                             |
---------------------      -----------------------    ---------------------