Panasonic KX-TEA308NE, Service Manual

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13.2. IC7
PIN No Pin Name I/O Function
3 HOOK 8 I Ext Hook Detect 8
4 HOOK 7 I Ext Hook Detect 7
7 HOOK 6 I Ext Hook Detect 6
8 HOOK 5 I Ext Hook Detect 5
13 HOOK 4 I Ext Hook Detect 4
14 HOOK 3 I Ext Hook Detect 3
17 HOOK 2 I Ext Hook Detect 2
18 HOOK 1 I Ext Hook Detect 1
13.3. IC8
PIN No Pin Name I/O Function
2 BELL8 O Ext BELL Control 8
5 BELL7 O Ext BELL Control 7
6 BELL6 O Ext BELL Control 6
9 BELL5 O Ext BELL Control 5
12 BELL4 O Ext BELL Control 4
15 BELL3 O Ext BELL Control 3
16 BELL2 O Ext BELL Control 2
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KX-TEA308NE