Replica 1 plus Users Manual Chapter 8: Troubleshooting your replica 1 If you have just built your replica 1 and are now having problems getting it running, here are some tips on what to check: Dead: Check jumpers to ensure correct setting for the type of power source you are using. Check your power source to make sure it is functioning properly. Replica 1 won’t reset: If you soldered from a kit, check for any points that didn’t get soldered. Check to make sure all chips are seated properly. Make sure you soldered the oscillator in the correct orientation. No response from the keyboard: Make sure you press reset before you begin using the replica 1.
Check the connector and be sure it is inserted properly. Reset works but cursor stays on same line as backslash: This is an indication that communication between the 6821 and the 6502 is not working correctly, or RAM is not functioning properly. If built from kit, check the 6821, 74LS04 and 62256 for missed soldering of pins. Make sure the chips are seated properly. These are a few of the most common problems reported by kit builders. The number one source was missed pins. If the pins don’t get soldered, the circuit may work, but act very strange. If you absolutely can’t find out what is wrong, contact Briel Computers to have your board checked. The replica 1 forums at:
http://www.brielcomputers.com/phpBB2/ is a good source for information when troubleshooting. We want every kit that gets sold to operate properly so we will fix your kit for shipping charges plus cost on any parts. Please contact Briel Computers at vbriel@yahoo.com before shipping in your board for repair. © Briel Computers 2014 page 27