A Variant of Tian Feng's Triple Bypass V2 with fixes and functionality added
Headphone Audio Restoration
These instructions work for VA3-VA6. VA7 is forthcoming.
On the bottom of the board under the CXA1034 (or similar) IC, remove: -C45-C48 -R42-43 (Mono audio amplifier summing resistors) -R34, 37
The HR pad will then connect to C43-negative and HL will connect to C41 negative.
CVBS Restoration
These instructions assume the subcarrier pin has not been lifted! Leave the 3BP S75 jumper open (no solder) for Model 2
-Model 1 For models VA3-VA6 (likely earlier models too, unconfirmed), on the bottom side of the board, remove: R17/19/21 (4.7 kOhm)
Solder: RO to the empty pad of R17 that has continuity to C25 GO to the empty pad of R19 that has continuity to C26 BO to the empty pad of R21 that has continuity to C27
-Model 1 VA7, Model 2 Remove R62-64
Solder RO to either pad that junctions R58, C25 and R62 Solder GO to either pad that junctions R59, C26 and R63 Solder RO to either pad that junctions R60, C27 and R64
For Model 2 systems, keep Pins 21-23 of the RGB encoder lifted. M1VA7 outputs will be restored to the original DIN and will not impact signals to the 9 Pin DIN.