
Assembling the debug board.
First locate all the parts:
1 27128 EPROM
1 28 pin socket
9 10K resistors
2 240 ohm resistors
1 6 position switch
1 74SL74
1 74LS02
1 74LS04
1 RED LED
1 GREEN LED
2 DUAL 22 PIN EDGE CONNECTORS
1 GRAY INSULATED WIRE
1 YELLOW INSULATED WIRE
1 BLUE INSULATED WIRE.

All componnet are on the silk screen side , solder and cut excess
leads from the bottom side of the board.
1. 240 Ohm resistor at R7 and R8

2. All the other resistor locations use the 10K resistors.

3. RED LED at location ACCESS, Note: there is a small flat
  on its circular base above the lead. Insert it so that
  it matches the flat on the silk screen.
  You can straighten the leads first but allow 1/8 space
  between the LED's base and the board.

4. Take the edge connector and bend the leads such that they contact
  the PC board on both sides. ( Sorry about the long leads, none of
  the other available connectors had the right clearance for the ends
  of PC board to clear. ) If you like you can cut the leads shorter.
  Solder them too the PC board, top and bottom. Do not have the leads
  under stress by the solder. It is essential that the leads are bent
  correctly before solding. Do not use the solder under tension
  with the connectors leads or it will lift the traces. The leads
  must be bent to be in close contact with the traces.

5. Solder the switch so that the 1 end is at the DB label.

For the ICs and EPROM socket note the solder mask mark indicating the
  pin 1 end.

6. Install and solder the EPROM socket at U3.

7. Install the 74LS04 in U1 and solder the leads.

8. Install the 74LS02 in U2 and solder the leads.

9. Install thr 74LS74 in U4 and solder the leads.

10. Install the EPROM at the EPROM socket, making sure the
  orientation is correct.

10. Attach wires onto the other edge connector such that the leads
  don't short. It helps cut the leads shorter. Make sure the soldered
  joint it close to the insulation and the all the loose ends are
  wrapped on the connector pins.
  I recommend putting the connectors on the KIM-1 at this point so that
  the spacing is correct. The DEBUG board goes on the edge connector
  at the processor end of the board. This is refered to as the
  Expansion connector.
  The other edge connector goes on the end with all the discreet parts.
  This is refered to as the Aplication connector.
  My KIM has A-A and A-Z on the bottom of the board to help with pin
  locations.
  Run the Grey wire from Application pin E ( 5th pin from bottom
  end ) to, debug board, solder pad P2E.
  Run the Yellow wire from Application pin F to, debug board, solder
  pad P2F.
  Run the Blue wire from Application pin K ( 9th pin from bottom end )
  to the solder pad, only marked P3. ( In alphabetical pin labels I, O
  and Q are skipped to avoid confusion with the numbers 1 and 0 )
  Special note here. If there is a jumper wire, connected on your
  KIM-1, to the board pin K and ground, remove it.
  The switch labled DB on the Debug Board will replace this function.
  Connect your power source as stated in the KIM-1 manual. I don't do
  any debug of the audio so the +12V is not needed unless you want
  to record tapes or use a remote serial current loop.
  Make sure the +5V supply you use is regulated and filtered 5VDC and
  greater than 1.2 Amperes ( some cheap wall plug transformers that
  state 5VDC are neither regulated or filtered and should not be used).

  This completes the Debug Board assembly. Refer to the instructions
  for how to use it for both debugging failures on your KIM-1 and for
  using the additional space on the EPROM for storing your programmes.




