Gamebox 64HD User manual

For All Standard N64 Models
Installation &
Assembly Guide
A PRODUCT OF Gamebox LLC ©2023
EXPERT
™
(Revision 07) 4.26.23

Is a product of Gamebox Systems LLC.
https://www.gamebox.systems
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Kit Contents:
• 64HD PCB
• HDMI daughter PCB
• RCP ex cable
• 15 pin FFC
• No cut AV shroud
• HDMI PCB mounting bracket
• 2x 5mm M2 screws
Tools Required:
• Gambit screw driver
• Phillips size 0 and 2
• Soldering iron (ne tip recommended for drag soldering)
• Solder (Leaded recommended, leadless can lead to poor solder joints and other
issues with the installation. Use unleaded at your own risk)
• Flux (liquid or normal will work ne)
• Wire gauge 30 to 32 (too small of gauge will cause issues, 34 and smaller)
Page 3
Gamebox LLC can, in no way, be held liable for any damage to the user’s property, or the user’s health from
following these instructions. While these instructions aim to give the user a comprehensive and safe guide to
completing this modifcation, there are many potential variables that could result in the unit that the user is
attempting to modify requiring more restorative measures. ere is also a serious risk of, injuries, and death
when working with electronics. At the time of this guide’s writing these consoles are rapidly aging, and even
working units should be recapped as soon as possible. Chemicals associated with some of these processes are
quite toxic and should be handled with care and adult supervision. Results may vary. “64HD”, “Gamebox”,
“Gamebox Systems”, “gamebox.systems”, its associated internet domains, and the associated logos in this
document are trademarks(™) of Gamebox LLC , A Limited Liability Company. is document, text and, images
contained there-in are property of Gamebox LLC ©2023 Gamebox LLC, all rights reserved.
Legal Disclaimer

RCP Flex Cable Installation
STEP 1
Page 4
Solder the RCP ex cable starting at Pin 6 (as shown above).

Solder the ex contact to the N64 motherboard
location marked “5v” in silkscreen (shown above).
FAILURE TO MAKE THIS CONNECTION
PROPERLY WILL RESULT IN THE 64HD PCB FAILING
TO BOOT WHEN THE CONSOLE POWERS ON.
For N64 motherboard revisions 01-05 (shown
le). Use a small amount of 30 gauge wire to connect
the CTRL breakout pad on the RCP ex cable to PIN 16
on the PIF. e Reset pad isn’t populated.
For motherboard revisions 06-09 please see the next page.
e motherboard revision can be found near
the cartridge slot (shown below).
Page 5
RCP Flex Cable Additional Connections
STEP 2
5 VOLT
PIF 16

Page 6
Alternate PIF Location On Later Revisions
STEP 3
For motherboard revisions 06-09 you must wire the CTRL pad to a VIA located next to the PIF chip
instead of directly to the chip itself. IF WIRED DIRECTLY TO PIF 16 THE USER WILL BE LOCKED OUT OF THE
OSD. Use a gentle abrasive or razor to remove the solder mask on the VIA before tinning and making the
connection. e VIA is the 4th VIA point that is closer to PIN 15 of the PIF chip.

HDMI Daughter PCB Installation
Mount the HDMI daughter PCB to included bracket using the included M2 screws. Install the daughter
PCB’s 15 pin FFC.
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STEP 4

HDMI Daughter PCB Installation
Place bracket in the bottom N64 shell(as shown above). Place bottom motherboard shielding over the
bracket.
Page 8
STEP 5

Replace the N64 motherboard. Install the no-cut A/V shroud. Install the top motherboard shield.
Remove the screws shown, line up the 64HD main PCB, and reattach the screws.
NOTE: If your motherboard is a later model that does not include these screw holes, use the included double
sided foam tape to secure the 64HD PCB down to the N64 heatsink.
64HD PCB Installation
Page 9
STEP 6

Flex Cable Attatchments
Insert ex cables into the corresponding sockets as shown (above).
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STEP 7

Final Assembly & Testing
Double check to make sure all ex cables are properly attached. Test the system before putting the top
shell back in place.
Page 11
STEP 8
L + R + C-DOWN + DPAD-DOWN -> enter OSD
L + R + LEFT DPAD + C-LEFT -> enter 240p mode
L + R + UP DPAD + C-UP -> cycle to next resolution