JVC KD-R420J Service Manual page 44

<Mecha control board>
(Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade))
(Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade))
SP-
BLK
SP+
RED
FE- WHT
LO-
WHT
LO+
YEL
No.MA478
CN102
R1
CN101
PbF
FE+
YEL
REST
MGND
ORG
ORG
SW1
(No.MA478<Rev.001>)22/23
SW2
created date:2010-11-08