Ic Description - Aiwa XR-H2000 Service Manual

IC DESCRIPTION (MX-NH2000)
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IC, UPD780228GF-065-3BA
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Pin No.
Pin Name
1 K-SCAN
2 RHYTHM-CS
3 RHYTHM-SCLK
4 RHYTHM-SD
5 PLL CE
6 O-M/CLK
7 O-M/DATA
8 O-M/STB
9 I/O-SERIAL
10 O-MUTE
11 O-POWER
12 DIMER 2
13 O-MUTE S
14 LED-ECO
15 NC
16 NC
17 IC
18 VSS
19 VDD
TE
20 L 13942296513 LED-MD
21
TM-BASE
22 TUNE/IFO
23 STEREO
24 NC
25 I-RE VOL A
26 I-RE VOL B
27 LED-CD
28 NC
29 RDS-CLK
30 RESET
31 I-RDS
32 GEQ-REQ
33 COUNTER
34 I-RMC
35 I-SURR-OFF
36 O-SHIFT
37 VDD
38 X2
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39 X1
40 VSS
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41 AVDD
42 HOLD
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I/O
O Key scan output.
O Chip select output to IC, BU9990-03FS. (Not used)
O Clock output to IC, BU9990-03FS. (Not used0
O Data output to IC, BU9990-03FS. (Not used)
O PLL IC chip enable output.
O Main clock output.
O Main data output.
O Main strobe output.
I/O Communication port for GEQ, CD and DECK.
O System mute (ON when "H").
O System power supply (ON when "L").
O Dimmer control ("L" when 2).
O Sound L, R, Center, SW Mute.
O ECO LED output.
– Not connected.
– Not connected.
– Connect to GND.
– GND.
– Power supply terminal.
O MD LED output.
I Time base input.
I Tuning detection input.
I Stereo detection input.
– Not connected.
I Rotary Encoder Input A / B.
O CD LED output.
– Not connected.
I TUNER RDS IC clock input.
I Reset input.
I Tuner RDS input.
O Latch output to IC, M62449FP.
I Tape counter input.
I Remote controller input (Active "L").
I Stop surround function when using head phone.
O Output for oscillated frequency shift.
– Power supply terminal.
– 4.19MHz oscillator circuit.
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– GND.
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– Power supply terminal.
I Power failure / over current detected input.
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Description
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