Din Sync RE-909 Petunjuk Tambahan - Halaman 7

Jelajahi secara online atau unduh pdf Petunjuk Tambahan untuk Peralatan Perekaman Din Sync RE-909. Din Sync RE-909 8 halaman.

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.

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)

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.

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) 