McWill LYNX-I User manual

ATTENTION !
Installing the LCD replacement is on your own risk! Your LYNX-I could be damaged,
if you are not able to do this modification!
Liability impossible!
Required materials:
LYNX-kit, VGA connector with screws, 4 plastic screws, 11 wires round about 12 cm (5 inches),
8 small wires of 2 cm (1 inch)
1. Step: Remove not needed Parts and 5 Volt check
ATTENTION !
Make sure that all power is
off
. Disconnect
ALL
cables.
NOTE:
The copper plane of the LYNX-I PCB is
NOT
GND, but 5 Volt !!!
1. Remove
POWER MODULE
2. Remove
Q9
transistor and
R73
resistor !!!
3. REMOVE
R34
and
R59
resistors.
4. Remove
LCD;
pull off the FPC
carefully
from the PCB like tape
5. Remove
F1
and
F2
fuses and
CFL lamp
!!! Now check the 5 Volt with a voltmeter on
VCC point
(see 3rd step). If the
voltage exceeds 5.45 Volt, repair your LYNX ! Otherwise the LYNX mod will
be
damaged
!!!
(For testing you need to insert a cartridge!)
2. Step: VGA connector (if needed)
After that you solder the other side of
the wires to the LYNX mod.
Connect the pins 6, 7 and 8 together.
Solder 6 wires to the pins 1, 2, 3, 13,
14 and (6, 7, 8) to the VGA connector.
LYNX-I LCD Replacement MOD REV3.0
(see picture below)
!!! Use hot glue for the internal screws of VGA connector. Otherwise the screws may cause short circuit !!!
Quick Guide
COPYRIGHT McWill 2014 - 2022

3. Step: Power and backlight button
Now solder one wire to
VCC
(+5 Volt) and one wire to
GND
(Ground)
.
Power (VCC and GND) For controlling the backlight by thumbwheel
you have to solder 2 wires from the thumbwheel
pad 1
and
pad 2
to the
square pads
of
BL.
Otherwise solder a solder blob onto
BL.
Solder
PAD 4
on the right to
TP10
.
If you
DON'T
want to install the VGA connector,
you can put a solder blob onto the
MENU pad 1
.
Then you only have two selectable modes (only
internal LCD) by pressing
"PAUSE"
for longer time.
Otherwise:
1.
Internal LCD;
2.
Same as 1 with
retro-style
3.
VGA;
4.
VGA with scanlines
4. Step: Soldering data lines
Solder 8 small wires (2 cm) to the
LYNX PCB
at pin
14, 16, 18, 31,36, 39, 41
and
58
.
Now use the white plastic of the old LCD to
make 8 ring washers. Take the 4 screws
and fix the LYNX mod to the LYNX PCB.
Adjust the LYNX mod exactly!
Then solder these 8 wires from the LYNX to the LYNX mod. The last wire is
TPR
.
If you made everything correct, you'll love it!
3.5" LCD / VGA selection: Press "PAUSE" long time and you can switch to different modes.
COPYRIGHT McWill 2014 - 2022
!!! At last check all connections again !!!