6 - BATTERY TERMINALS
Affects all pcb versions, fix improves/solves memory retention issues.!
The battery terminal holes are missing the through hole plating, the fix is simple, please download V1.15 of the Build/
Bom guide for more details.!
7 - MATCHING TRANSISTORS
The following transistors MUST MATCH - The HFE readings should be exatly the same (ex: 290 hFe)!
Q6 (BD)!
Q12 (BD)!
Q19 (LT)!
Q20 (LT)!
Q21 (LT)!
Q26 (MT)!
Q27 (MT)!
Q28 (MT)!
Q33 (Noise)!
Q37 (CP)!
Q50 (SD)!
Q51 (SD)!
Q58 (HT)!
Q59 (HT)!
Q65 (RS)!
Q69 (HH/Cy)!
Q71 (HH/Cy)!
Q85 (HH/Cy)#
8 - SWITCHBOARD ELECTROLYTIC CAP GUIDANCE
Lay down all electrolytics under the switchboard (don’t place them standing up) !
There are clearance issues which present themselves intermittantly later, because the metal cap of an electrolytic
momentarily shorts a switchboard connection. this causes random crashes, stuck sequences, etcand it sucks. Lay
those caps flat.!
To Next Page
Loading...