Ic Information - Pioneer SX-20-K Service Manual

5

5.3 IC INFORMATION

J020780536000-IL (MAIN ASSY : IC101)
UPD78F0536_Main u COM
• Pin Arrangement (Top view)
KEY1I(A/D)
KEY2I(A/D)
PORT_TEMP
FL_SW/RLY
ST/BY_LED
VOL_UP
VOL_DN
FLT_CE
FLT_CLK
FLT_DOUT
PWR_KEY
• Pin Function
Pin No. Symbol
1 PORT_ASO
2 REC_MUTE
3 MAIN_MUTE
4 NC
5 NC
6 RESET
7 NC
8 H/P_RLY
9 FLMD0
10 SPK-A_RLY
11 SPK-B_RLY
12 REGC
13 Vss
14 Evss
V
15
DD
EV
16
DD
5
6
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
→
49
P27/ANI7
→
50
P26/ANI6
→
STEP 51 P25/ANI5
→
52
P24/ANI4
←
53
P23/ANI3
← 54
P22/ANI2
→
55 P21/ANI1
→
56
P20/ANI0
57
NC P130
58
NC P04/SCK11
←
59
P03/SI11
←
60 P02/SO11
←
61
P01/TI010/TO00
→
62
RMC P00/TI000
→
63
P141/BUZ/INTP7
→
64
P_DN P140/PCL/INTP6
1 2
I/O
I ASO Protection detection signal input pin
O Output for RECORDER mute cotrol pin
O Output for MAIN mute cotrol pin
- NOT USED
- NOT USED
I Micom reset signal Input pin
- NOT USED
O H/P_RLY output Relay control pin
- UPGRADE Mode Pin
O SPK-A_RLY speaker output Relay control pin
O SPK-B_RLY speaker output Relay control pin
- Regulator Capacitance (0.47UF)
- Ground
- Ground
- +3.3V power supply
-
+3.3V power supply
6
7
(IC101)
UPD78F0536GK
3 4 5 6 7 8 9 10 11 12 13 14 15 16
Description
SX-20-K
7
8
→
P32/INTP3/OCD1B 32 P32
P05/SSI11/TI001 31 NC
/TI011 30 NC
P06/TO01
P70/KR0 29 NC
28
P71/KR1 NC
27
P72/KR2 ↔ VOL_SDA
→
P73/KR3 26 VOL_SCL
P74/KR4 25 NC
P75/KR5 24 NC
P76/KR6 23 NC
P77/KR7 22 NC
→
P33/TI51/TO51/INTP4 21 VOL_LATCH
P63 20 NC
←
P62/EXSCL0 19 PORT_POWER
←
P61/SDA0 18 PORT_DC
P60/SCL0 17 NC
8
A
B
C
D
E
F
23