Pioneer XC-L77 Service Manual page 50

XC-L77
• Port C can bitting select I/O. The input after resets.
• Port D can select I/O only by (PD0-3, PD4-7) every four bits. The input after resets.
• PF4-7 of port F can bitting select I/O. The input after resets.
• Port I can bitting select I/O. The input after resets.
• Port J can bitting select I/O. The input after resets.
• PE6 Attention concerning PE7. Adjust to 0.7V or more both PE6 and PE7 when RST standing up from L to H.
Please note entering in the test mode of the microcomputer. Pull-up is necessary.
• When resetting : Makes to Hi-Z excluding PE6 and PE7. PE6 and PE7 are made H level.
• Connect the 90th terminals NC with Vdd.
• Connect both of the terminal Vss of the 41th pin and the 88th pin with GND.
• It is terminal OPEN and OK for the model without RDS.
RDSDATA is set to make to the output mode and to output LOW with the microcomputer.
• The processing such as pull-down is necessary for RDSCLK for the model without RDS.
*
1 : Change of function. The truth value table of BU4052BCF.
A B S w i c t h u t n r
L L X , 0 Y 0
H L X , 1 Y 1
L H X , 2 Y 2
H H X , 3 Y 3
NJU7002M (CONTROL UNIT : IC5902)
• OP-AMP IC
•
Pin Function
VDD
OUT1 1 8
IN–1
2 7 OUT2
IN+1
3 6 IN–2
GND
IN+2
4 5
50
e d o n F u n t c o i n
C D
A U X
T C - M D
T X
IN– 2
IN+
3
IN+MUTE 4
MUTE
10
STBY
9
TDA7294V (AMP UNIT : IC3303)
• DMOS Audio Amplifier IC
•
Pin Assignment
•
Block Diagram
+Vs
7
MUTE
THERMAL
STBY
SHUTDOWN
1 8
STBY-GND -Vs
15 -Vs (POWER)
14 OUT
13 +Vs (POWER)
12 N.C.
11 N.C.
10 MUTE
9 STAND-BY
8 -Vs (SIGNAL)
7 +Vs (SIGNAL)
6 BOOTSTRAP
5 N.C.
4 SUR
3 NON INVERTING INPUT
2 INVERTING INPUT
1 STAND-BY GND
+PWVs
13
14
OUT
BOOTSTRAP
6
S/C
PROTECTION
15
-PWVs