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- 08 May 2006, 17:22 PM
- Forum: ZX-40
- Topic: ZX-40 & ZX44 Schematics
- Replies: 8
- Views: 10707
Re: ZX-40 & ZX44 Schematics
Additional ZX-40 Schematic Questions: Question 1) What is the purpose of the 6.8K pull-up resistor on the com1 tx line (PD1 pin 15)? Is this component actually necessary if one of the Max TTL-RS232 transceiver solutions is employed to implement the com1 interface? Question 2) A DigiKey PN is suggest...