28 Jul
2004
28 Jul
'04
11:43 a.m.
I'm really embarrassed, but guess what? I took apart my RX50
(cleaning/servicing..) but didn't bother to document where all the
jumpers/headers go..
I have found my hand-drawn RX50 schematic that I drew out...
The conenctors on the Seek/Interface board seem to be :
J1 : 34 pin header -- Interface
J2 : 5 pin header -- Upper Clamp Arm
J3 : 4 pin -- Power input
J4 : 8 pin header -- To motor PCB
J5 : 3 pin header -- Track 0 sensor
J6 : 3 pin header -- LED B, not used
J7 : 6 pin header -- Head Stepper Motor
J8 : 5 pin header -- Lower Clamp Arm
J9 : 12 pin header -- To R/W PCB
J10 : 3 pin header -- LED A, not used
I assume these were labelled in my drive...
Anmyway, on the track 0 connector (J5), pin 1 goes to groudn, pin 2 goes
to +5V via a 180 Ohm resistor, pin 3 goes to +5V via a 100k resistor and
also to pin 1 of E5 (a '14 chip). That should be enough to identify it.
-tony