Read Sony CDX-GT630UI / CDX-GT637UI / CDX-GT63UIW (serv.man2) Service Manual online
5
CDX-GT63UIW/GT630UI/GT637UI
• IC Block Diagram
IC971 SN74LVC2G66DCUR (KEY Board)
3
1
1Y
1Z
2E
GND
VCC
1E
2Z
2Y
4
2
5
7
6
8
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