Panasonic CQ-DFX572N, Service Manual

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http://manuals.panasonic.co.uk/viewing/EUOT/CQ-DFX572N/SVC/s0901000000.html
9.1 Main Block
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IC601 : C2CBJG000197
Pin/No. Port Description I/O Vol.(V)
FM AM CD
1 CH.SENS CD changer 1/2 detection I 5.2 5.1 5.2
2 ST FM stereo signal I 5.2 5.2 5.2
3 EJECT EJECT.KYE detection I 5.1 5.1 5.1
4 AVSS Ground - 0 0 0
5 EXT MUTE TEL/NAVI mute I 5.3 5.3 5.3
6 CH 1/2 CD changer 1/2 O 5.0 5.0 5.0
7 AVREF1 Reference voltage - 5.0 5.0 5.0
8 SUB.SO LCD data I 3.3 3.3 0
9 LCD.DI LCD data O 1.2 1.5 5.0
10 SUB.SI LCD clock O 1.5 1.5 1.5
11 CH.DATA CD changer data I 0 0 0
12 (NC) - - - - -
13 CH.CLK CD changer clock I 0 0 0
14 CH.REM CD changer remote control O 5.0 5.0 5.0
15 <K4> BZ OUT BEEP output O 0 0 0
16 CD.SO CD data I 2.4 2.5 2.3
17 CD.SI CD data O 5.0 0 0
18 CD.SCK CD clock O 5.0 5.0 5.0
19 S.W.UP Wake up O 5.0 5.0 0
20 CD.RST CD Reset O 5.0 5.0 5.0
21 AMP.CNT External AMP control O 5.0 5.0 5.0
22 ANT.CNT Antenna control O 5.0 5.0 0
23 S-HDB ON/OFF (NC) - - - - -
24 SUB W FREQ SEL (NC) - - - - -
25 (NC) - - - - -
26 (NC) - - - - -
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