Sony WRT-800A Service Manual page 27

CPU PIN DESCRIPTION : IC301
HD6473614H
-TOP VIEW-
1
3 AV (GND)
SS
7 V (GND)
SS
(+ 5V )
16 V
CC
PIN SIGNAL I/O
3 AV —
SS
7 V —
SS
6 X1 IN
8 OSC1 IN
10 RESET IN
14 LED OUT
15 ID OUT
16 POFF IN
19 CH3-8 IN
20 CH3-4 IN
21 CH3-2 IN
22 CH3-1 IN
23 CH2-8 IN
24 CH2-4 IN
25 CH2-2 IN
26 CH2-1 IN
28 LVD OUT
30 AFM OUT
33 V IN
CC
34 I/F CTS IN
35 I/F TEST IN
36 I/F RTS OUT
37 I/F TXD OUT
38 I/F RXD IN
WRT-800A (AU)
48
33
DESCRIPTION
Ground
Ground
Clock input (32.768 kHz)
Clock input (4 MHz)
Reset (L: reset)
LED
Not used
Power sw ON/OFF detection
CH3-8
CH3-4
CH3-2
CH3-1
CH2-8
CH2-4
CH2-2
CH2-1
LVD
AF-Muting
Power supply
Communication
Communication
Communication
Communication
Communication
PIN SIGNAL I/O
42 CH1-1 IN
43 CH1-2 IN
44 CH1-4 IN
45 CH1-8 IN
46 TV IN
51 CLK OUT
52 LAT OUT
53 RFM OUT
54 LD IN
55 CS OUT
56 DATA OUT
57 DO IN
58 V IN
CC
60 BAT-H IN
61 BAT-L IN
59, 62, — IN
63, 64
1, 2, 4, GND IN
7, 11,12,
17, 18
5, 9, 13, — —
27, 29, 31,
32, 39 to 41
47 to 50
DESCRIPTION
CH1-1
CH1-2
CH1-4
CH1-8
TV
Clock for PLL/EEPROM
PLL latch
RF-Muting
Lock detection for PLL
Chip select for EEPROM
Data for PLL/EEPROM
Data for EEPROM
Power supply
Battery detection
Battery detection
Setting destination for
WRT-800A
GND
NC
5-4
IC