---

The EasyDownloader V 1.1 , a Flash Writer for 89C2051/4051 which was designedby Wichit Sirichote, used  a Double-SidePCB. I think, it's difficult to make my ownPCB by myself. So that I decided to design a Single-SidePCB instead. My first prototype board wasmade using hand-writing with a permanent ink pen( see later in Figure 3).This page however, thus provides a PCB layout and components placementwritten by Paint Program. So simple, but it works fine. Everyone can makeit easily. If you've got problem or any suggestion, please sendit to my e-mail address shown above.

Figure 1: Bottom View of PCB Patternfor Easy Downloader V 1.1 (A full size copy is 6.5x13 cm)

Figure 2:  Component placementlayout (top view), be careful pin 1 of IC chips and polarity of electrolyticcapacitors.

Don't forget, you must connect jumper wires on a bottom of PCB: pin12-19 of the writer(89c2051) to pin 12-19 of the ZIF Socket, respectively

Figure 3:  Shows jumper wiresconnection on the bottom side of PCB, see the handcraft PCB pattern, socool !

Single-side PROTEL PCBfile, EZSS.PCB

## README for Making Single-Side PCB EasyDownloader by EZSS.PCB (ProtelPCB file)  ##

1. Blue pattern is copper trace layer on a bottom of the PCB.
2. Yellow pattern is a component overlay.
3. Green lines are jumper lines (J3-J10) whichmust be connected on the bottom of the PCB.

---