Assembly.txt

USB HHKB Alt controller assembly
================================
20014/08/21 Rev.C

U1          ATMega32U4
R2,R3       22Ohm
C4          1uF
C1          4.7uF(instead of 10uF)
C3,C7-10    0.1uF(for decoupling)
R4          1KOhm
C5,C6       18pF(or 22pF)
X1          16MHz
R5          1KOhm
D1          LED
CN2         JST ZH connector
J1          USB mini B receptacle
SW1         Alps tactile swtich

Following solder jumpers should be closed.
- 'amp' below C2
- 'No PWCTL'
- 'amp' marked as JP10
- 'No BT'
- 'No PPTC'


PPTC        not installed
C2          not installed
Q2_N        not installed(N-ch FET)
R15         not installed
ICSP        not installed(for debug)
PD1,PD0,GND not installed(for debug)
R17,R18     not installed(for battery monitor)
CN1         not installed(for HHKB JP)

Other components on right side part of board are also not installed.