Pioneer XC-F10 Service Manual page 38

XC-F10
*
1 : Change of function. The truth value table of BU4052BCF.
A B Switch turned on
L L
H L
L H
H H
*
2 : The truth value table of Expander IC (BU4094BCF / M-F10 COMPLEX ASSY IC5801).
Function Name Port Kind
OE
ACRY
SPRY
XMUTE
IND
HPPOW
WF1*
WF2*
*
3 : The truth value table of PLAY LED brightness.
Brightness DISCLED
OFF L
LOW L
MID L
HIGH H
PD5601A (DISP UNIT : IC5652)
• 4 Bit Single Chip Microcomputer
•
Pin Assignment
VSS
E2
E1
XIN
XOUT
E0
G0
G2
G3
G4
•
Pin Function
NO. PIN NAME
1 VSS
2 E2 Trigger input for buzzer
3 E1
4 X IN 3.84MHz Oscillation Connection
5 X OUT 3.84MHz Oscillation Connection
6 E0 buzzer ON/OFF input
7 G0
8 G1
9 G2
10 G3
11 D7 Signal switch output
12 D6 Remote control output without carrier
13 D5
14 D4
15 D3
16 D2
17 D1
18 D0
19 CARR Remote control output with carrier
20 VDD
38
Function
X0, Y0 CD
X1, Y1 AUX
X2, Y2 PB
X3, Y3 TX
Active
C-MOS H
C-MOS H
C-MOS H
C-MOS L
C-MOS H
C-MOS (Not used)
C-MOS L
C-MOS L
LEDDIMA LEDDIMB
L L
L H
H L
L L
1 20
2 19
3 18
4 17
5 16
6 15
7 14
8 13
9 12
10 11
FUNCTION I/O
GND
Buzzer output
KEY input 1
KEY input 2
KEY input 3
KEY input 4
KEY output
KEY output
KEY output
KEY output
KEY output
KEY output
3V Power supply
*
Woofer Level
HIGH
MID
LOW
VDD
CARR
D0
D1
D2
D3
D4
D5
D6
D7
PULL DOWN ACT
– ––– –
I Software H
O Software H
I ––– –
O ––– –
I Software H Input interception
I Software H
I Software H
I Software H
I Software H
O Software H
O External L
O ––– H
O ––– H
O ––– H
O ––– H
O ––– H
O ––– H
O ––– H
– ––– –
WF1
H
H
L
at SLEEP NOTE
–––––
I Pull down ON always
I Pull down ON always
–––––
–––––
Pull down OFF at SLEEP
I
I
I
I
I
H output
H output
H output
H output
H output
H output
H output
L output
–––––
WF2
H
L
H