Sharp HT-CN300 Service Manual page 39

IC601 RH-iX0011BGZZ: System Microcomputer (UPD780206) (1/2)
Pin No. Port Name
1 VDD
2 P37
3 P36
4 P35
5 P34
6 P33
7 P32
8 P31
9 P30
10 RESET
11 X2
12 X1
13 VPP/IC
14* XT2
15 P04
16 VDD
17 P27
18 P26
19 P25
20 P24
21 P23
22 P22
23* P21
24 P20
25 AVSS
26 ANI7
27 ANI6
28 ANI5
29 ANI4
30 ANI3
31 ANI2
32-33 ANI1-ANI0
34 AVDD
35 AVREF
36 INTP3
37 INPT2
38 INTP1
39 INTP0
40 VSS
41 P74
42 P73
43 P72
44 P71
45 P70
46 VDD
47 P127
48 P126
49 P125
50 P124
51 P123
52 P122
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Terminal Name Input/Output
VDD Input
RDS READY Input
RDS RDCL/KARA LAC Output
RDS RDDA/MIC IN Input
RDS RESET Output
-20dBATT Output
FAN CONT Output
CCB CE0 Output
CCB CE1 Output
RESET Input
X2 Output
X1 Input
VPP/IC —
XT2 —
SPN Input
VDD Input
CLK Output
DATA Output
CCB DO INPUT Input
CCB CE2 Output
FLD CS Input
FLD SCK Input
OPEN Output
FLD SDATA Input
AVSS —
POWER Input
PROTECT Input
THERMO Input
TUN SM Input
DIST 1 Input
DIST 0 Input
KEY 1-KEY 0 Input
AVDD Input
AVREF —
SYS_STOP Input
DSP RX-IN OUT Output
DSP SYSTEM STOP Output
REMOCON Input
VSS —
REM ACK LED Output
SMUTE Output
POWER ON LED Output
STAND BY LED Output
DSP RESET Output
VDD Input
DSP SMUTE IN Input
DSP POWER IN Input
DD LED Input
STD LED Input
DTS LED Input
VIR LED Input
(+) Power supply.
RDS IC Ready.
RDS IC Clock or karaoke latch.
RDS IC Data or mic in.
RDS Reset.
-20dB Attenuator.
Fan control.
CCB CE0.
CCB CE1.
Microcomputer reset.
Main clock.
Main clock.
GND.
Open.
Tuner span select.
(+) Power supply.
CCB/OSD/Karaoke clock.
CCB/OSD/Karaoke data.
CCB DO input.
CCB CE2.
DSP Micom FL CONT CS.
DSP Micom FL SCK.
Open.
DSP Micom FL CONT Stand.
Analog ground.
Power output level input
Protect input.
Thermo level input.
Tuner signal meter.
Distination 1.
Distination 0.
Key input.
Analog VDD.
Analog ref voltage.
Power failure control.
Output to DSP microcomputer remcon input.
DSP system stop output.
Remocon input.
Ground voltage.
Remocon acknolage LED.
System mute control.
Power on LED control.
Stand by LED control.
DSP Microcomputer reset.
(+) Power supply.
DSP S-mute Signal input .
DSP power on signal input.
DSP D.D LED input.
DSP STD LED input.
DSP DTS LED input.
DSP VIR LED input..
– 39 –
HT-CN300
Function