Description Of Ic Terminal - Alpine MRP-M350 Service Manual

Description of IC Terminal

TCP87P47U :
IC501
No. Symbol
1 SHT-DET1(PULL-UP)
2 SHT-DET2(PULL-UP)
3 SHT-DET3(PULL-UP)
4 DATA IN2(PULL-UP)
5 CUR-DET1(PULL-UP)
6 CUR-DET2
7 CUR-DET3(PULL-UP)
8 CUR-DET4(PULL-UP)
9 DC-DET1(PULL-UP)
10 DC-DET2(PULL-UP)
11 DC-DET3(PULL-UP)
12 DC-DET4
13 TEST
14 RESET
15 XIN
16 XOUT
17 VSS
18 VAREF
19 AD VOLT
20 AD THRM1
21 AD THRM2
22 VCC REF
23 TH-DET1
24 TH-DET2
25 TH-DET3(GND)
26 TH-DET4(GND)
WATCH DOG
27
(PULL-UP)
28 DATA OUT(-6dB)
29 DATA IN1(PULL-UP)
30 AMP STATE
DATA IN(MUTE)
31
(PULL-UP)
DATA IN(-6dB)
32
(PULL-DOWN)
33 DATA OUT
34 LED RED(PULL-UP)
DATA OUT(MUTE)
35
(PULL-UP)
TRIGGER IN
36
(PULL-UP)
37 BAT_DET
38 SHT-DET4(PULL-UP)
39 PWM MUTE
40 VDD
41 494 CONT
42 PWM ST-BY
43 LED BLUE(GND)
44 VOLT-DET
I/O
- Pull-up connect terminal.
I Over current detect 2 terminal.
- Pull-up connect terminal.
I DC Offset detect 4 terminal.
I Test terminal.
I Reset terminal.
I
Crystal OSC connect terminal.
O
I GND connect terminal of A/D converter.
I Analog standard voltage terminal.
I Voltage signal input terminal.
I Temperature signal input terminal. (u-COM)
I Temperature signal input terminal. (transformer)
I Output standard voltage terminal of Transformer.
I Temperature detect 1 terminal.
I Temperature detect 2 terminal.
- GND connect terminal.
- Pull-up connect terminal.
O -6dB MUTE circuit control terminal.
- Pull-up connect terminal.
I AMP state detect interrupt input terminal.
- Pull-up connect terminal.
- Pull-down connect terminal.
O Power supply circuit control terminal.
- Pull-up connect terminal.
I BAT-DET terminal.
- Pull-up connect terminal.
O PWM MUTE terminal.
I Power supply terminal. (4.5 to 5.5V)
O PWM IC(uPC494GS) control terminal.
O PWM STAND-BY terminal.
- GND connect terminal.
I Output voltage detect terminal of Transformer.
Terminal Description
TO SCHEMATIC TO CONTENTS