Harman Kardon TU-940, Техническое руководство

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Pin Functions
Pin No. Configuration Symbol Description
1 ¡- 7 FIP1 ¡- FIP7 G1 ¡- G7 Grid signal output for FIP.
8 VDD VDD +5V Power supply.
9 ¡- 14 P22 ¡- P27
N.C. Not used!
15 P21 E. UP Input to detect encoder UP signal.
16 P20 E. DOWN Input to detect encoder DOWN signal.
17 RESET RESET Input to reset CPU.(At "L", it is active)
18 P74 N.C. Not used!
19 P73 PD Input to detect power down.(At "L", it is active)
20 A.Vss A.Vss Ground
21 P17 AM Input to select step for AM tuning.(H:9KHz,L:10KHz)
22 P16 FM Input to select step for FM tuning.(H:50KHz,L:100KHz)
23/24 P15/P14 N.C. Not used!
25 ¡- 27 P11 ¡- P13 KEY IN Data input for key scan.
28 P10 S_METER Input to detect the receiving signal level.
29 A.Vdd A.Vdd +5V Power supply.
30 A.Vref A.Vref Referance voltage for A/D converter.(Connected to 5V,not VDD)
31 P04 N.C. Not used!(Connected to ground)
32 XT2 N.C. Not used!
33 Vss Vss Ground
34/35 X1/X2 X1/X2 Input and output for 4.19MHz crystal.
36 P37 N.C. Not used!
37 P36 STEREO Input to light "STEREO" indicator.(At "H",it is active)
38 P35 TUNED Input to detect station during tuning.
If "L" is inputed during tuning, tuning stop at that frequency.
When power is on, control data output is "L".
39 P34 POWER When power is off, control data output is "H" and last memory
function is activated.
40 P33 MUTE Output for mute.(At "H",it is active)
41 P32 CE Chip enable output for LC7218JM.
42/43 P31/P30 DA/CK Data/Clock output for LC7218JM.
44 P03 DO Data input for LC7218JM.
45 P02 RMC IN Input to receive remote control data from amplifier.
46/47 P01/P00 RDS DA/CK Input to receive RDS clock/data from TDA7479D.
48 IC(Vpp) GND Ground
49 P72 RDS Input to select RDS function for europe.
(At "H",RDS function is selected)
50/51 P71/P70 P_LED CTRL1/2 Output for power LED.Standby(1:L,2:H) or power on(1:H,2:L)
52 VDD VDD +5V Power supply.
53 FIP33 N.C. Not used!
54 ¡- 70 FIP16 ¡- FIP32 S3 ¡- S19
Segment signal output for FIP.
71 Vload Vload Power supply for FIP Controller.
72/73 FIP15/FIP14 S1/S2 Segment signal output for FIP.
74 ¡- 80 FIP7 ¡- FIP13 G8 ¡- G14 Grid signal output for FIP.
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