Kenwood KAC-PS621 Service Manual page 6

KAC-PS621/X621
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
71 TEST
72 XT2
73 XT1
74 VDD0
75 AVDD
76 AD-I
77 AD-V
78~80 TEMP1~TEMP3
◊ Logic Table
1) Destination
The destination in AMP does not mean the sales regions but
specific models.
The following are the models. When reset is released, it is
checked only once.
Model name
KAC-PS811D/X811D
KAC-PS521/X521
KAC-PS621/X621
KAC-PS541/X541
6
I/O Function
- Flash ROM writing
- Not used
- Not used
- VDD
- VDD
I First current detection (for display)
I BU voltage detection (for display)
I Temperature detection 1~3
MODEL1 (29pin) MODEL2 (30pin)
Low Low
Low High
High Low
High High
Processing Operation Description
2) AMP ID
AMP ID is checked only ohce at the time reset is released or
when the microcomputer is released from the low consump-
tion mode.
When set to AMP ID 8/9 no remote control is possible.
DIP-SW1 DIP-SW2
AMP ID
(25pin) (26pin)
0 High High
1 Low High
2 High Low
3 Low Low
4 High High
5 Low High
6 High Low
7 Low Low
8 High High
9 Low High
3) Fan speed
Operation FAN1 (58pin)
Stop
Low speed
High speed
DIP-SW3 DIP-SW4
(27pin) (28pin)
High High
High High
High High
High High
Low High
Low High
Low High
Low High
High Low
High Low
FAN2 (59pin)
Low High/Low
High High
High Low