Microprocessor And Ic Data - Marantz DV7010 Service Manual

1.12 MICROPROCESSOR AND IC DATA

TMP87CH74
Pin No. Port Name
1 S OUT(F to M)
2 RESET_OUT
3 MODEL
4 XRDY
5 SC_MUTE
6 SQEEZE
7 VSS
8 XOUT
9 XIN
10 RESET
11 VERSION1
12 VERSION2
13 TEST
14 VERSION3
15 S_MUTE
16 STB_LED
17 VSEL2
18 STB_CONT
19 V_MUTE
20 LT1
21 D_BUS_IN
22 INT4/TC3
23 SC_SCL
24 SC_SDA
25 GND
26 FL_OFF_LED
27 KEY IN0
28 KEY IN1
29 KEY IN2
30 Reserve
31 VSEL1
32 REM_CODE
33 GND
34 KEY OUT0
35 KEY OUT1
36 KEY OUT2
37 KEY OUT3
38 GND
39 +5V
40 +5V
41 NC
42 NC
43 G11
44 G10
45 G9
46 G8
47 G7
48 G6
49 G5
50 G4
51 G3
52 G2
53 G1
54 NC
55 NC
56 NC
57 P21
58 P20
I/O
O Serial data out put for Mecha unit
O Reset signal for Mecha unit
I GND
O Communication handshake line for Mecha unit
O Audio mute control for Scart
I 16:9 squeeze signal from Mecha unit
GND
O 8MHz Osillater connecting
I 8MHz Osillater connecting
I Reset signal input
I Destination setting
I Destination setting
I Destination setting
O Audio mute control
O Standby LED control
I Video switching signal for Scart
O Standby control signal for Mecha unit
O Video mute signal
I Communication response signal input from Mecha unit
I Remote signal input
I Remote signal input
O Serial clock output (I2C)
I/O Serial data input/output (I2C)
O FL OFF LED control
I Key scan input
I Key scan input
I Key scan input
I Reserve (5V)
I Video switching signal for Scart
I Remote code setting
GND
O Key scan output
O Key scan output
O Key scan output
O Key scan output
GND
I A/D Reference voltage
Power supply
O VFT Grid output
O VFT Grid output
O VFT Grid output
O VFT Grid output
O VFT Grid output
O VFT Grid output
O VFT Grid output
O VFT Grid output
O VFT Grid output
O VFT Grid output
O VFT Grid output
O VFT Segment output
O VFT Segment output
1-30
FUNCTION
L:Reset
d
L:Mute
L:16:9, H:4:3
L:Reset
L:Mute
L:Standby
L:Standby
L:Mute
L:Busy, H:Ready
L:Standby