LED Speed Displays
These were implemented by makers in many ways.
Below are some examples.
DP-524
Type: LED drive from motherboard (see top half of diagram here)
Click here for the maker's diagram.
F-502
See S-501
GK-01
Type: Turbo switch (see bottom half of diagram here)
Click here for a diagram.
Click here for a photo.
G-568
Type: Turbo switch (see bottom half of diagram here)
Click here for the maker's diagram. (Diagram sourced from member njroadfan of the VCFF, November 2013)
GT-569
Type: Turbo switch (see bottom half of diagram here)
Click here for the maker's diagram.
NOTE: This appears to be a K-568 without the 'power LED' functionality.
NOTE: In the example, the H2 jumper is on the wrong pins. Refer to the K-568 diagram to see the correct jumper position.
K-568
Type: Turbo switch (see bottom half of diagram here)
Click here for the maker's diagram. (Diagram sourced from member njroadfan of the VCFF, November 2013)
Click here for an alternate diagram.
Click here for a photo.
NOTE: This appears to be a GT-569 with 'power LED' functionality added.
K-569
Type: Turbo switch (see bottom half of diagram here)
Click here for the maker's diagram. (Diagram sourced from member njroadfan of the VCFF, November 2013)
S-305 and S-305H
Type: Turbo switch (see bottom half of diagram here)
Two maker's diagrams available:
Click here for diagram # 1. (Diagram sourced from member vanderk of the VCFF, August 2013)
Click here for diagram # 2. (Diagram sourced from member njroadfan of the VCFF, November 2013)
S-501 and F-502
Type: ??????
Click here for a diagram.
Click here for a photo.
SD-402
Type: LED drive from motherboard (see top half of diagram here)
Click here for the maker's diagram.
SD-403
Type: LED drive from motherboard (see top half of diagram here)
Click here for the maker's diagram.
SFI-501
Type: LED drive from motherboard (see top half of diagram here)
Click here for the maker's diagram.
SK-188
Type: Turbo switch (see bottom half of diagram here)
Click here for a diagram.
Click here for a photo.
ST-6A
Type: Turbo switch (see bottom half of diagram here)
Click here for a diagram.
Click here for a photo.
YY-1300105 / YY-1300106
Click here for instructions that are known to work with this unit. (Information sourced from member liqmat of the VCFF)
Click here for a photo.
Unknown #1
Type: LED drive from motherboard (see top half of diagram here)
Click here for the maker's diagram.
Unknown #2
A chip (beneath the white substance) lights the LED elements, based on the jumper settings.
One jumper per row.
Top jumper row controls TURBO display, bottom jumper row controls NON-TURBO display.
On each row, move the position of the jumper to get the desired speed readout (e.g. 08/10/12/16 ...)
Unknown #3
Type: Turbo switch (see bottom half of diagram here)
Click here for a diagram. (Diagram created from information provided by member Aitotat of the VCFF)