RXD-V525/V626/V727/V828
9
CIRCUIT DESCRIPTION
2-4 EXPANDER IC PIN DESCRIPTION
(X13:IC14) BU2090F
Pin No.
Name
I/O
Connect
Description
1
VSS
-
-
GND
2
DATA
I
PD
DATA INPUT
3
CLOCK
I
PD
CLOCK INPUT
4
120/70
O
-
DECK 120/70us CHANGEOVER
5
D-R/P
O
-
DECK DOLBY R/P CHANGEOVER
6
B1/B2
O
-
DECK B1/B2 CHANGEOVER
7
DOLBY
O
-
DECK DOLBY ON/OFF
8
NOR/CrO2
O
-
NOR/CrO2 CHANGEOVER
9
BEAT CANCEL
O
-
BEAT CANCEL ON/OFF
10
-
O
-
NO USED
11
CD REC
O
-
CD REC CONTROL
12~15
NC
O
-
NO USED
16
VDD
-
-
+5V
(X14: IC52) BU2090 (LED ON : LOW ACTIVE)
Pin No.
Name
I/O
Connect
Description
1
VSS
-
-
GND
2
DATA
I
PD
DATA INPUT
3
CLOCK
I
PD
CLOCK INPUT
4
SOUND
O
-
SOUND ICON LED ON/OFF
5
TIMER
O
-
TIMER ICON LED ON/OFF
6
EX.BASS/SW
O
-
EX. BASS/SW LED ON/OFF
7
ECHO 1
O
-
ECHO 1 ON/OFF PORT
8
EMUTE
O
-
ECHO MUTE PORT
9
DISC3
O
-
DISC3 LED ON/OFF
10
DISC2
O
-
DISC2 LED ON/OFF
11
DISC1
O
-
DISC1 LED ON/OFF
12
MENU
O
-
MENU LED ON/OFF
13
CD-PGM
O
-
CD PGM ICON LED ON/OFF
14
CD-TO-TAPE
O
-
REC OPTIONS ICON LED ON/OFF
15
TAPE-TO-TAPE
O
-
DUBBING ICON LED
16
VDD
-
-
+5V
(X14:IC53) BU2090 (LED ON : LOW ACTIVE)
Pin
Name
I/O
Connect
Description
1
VSS
-
-
GND
2
DATA
I
PD
DATA INPUT
3
CLOCK
I
PD
CLOCK INPUT
4
KEY CON
O
-
KEY CON LED ON/OFF
5
-
O
-
NO USED
6
ECHO
O
-
ECHO LED ON/OFF
7
SURROUND
O
-
SURROUND ICON LED ON/OFF
8
-
O
-
NO USED
9
PBC
O
-
PBC LED ON/OFF
10
-
O
-
NO USED
11
VIRTUAL
O
-
DOLBY VIRTUAL SURROUND LED ON/OFF
12
3 STEREO
O
-
DOLBY 3 STEREO LED ON/OFF
13
PRO LOGIC
O
-
DOLBY PRO LOGIC LED ON/OFF
14
-
O
-
NO USED
15
KARAOKE
O
-
KARAOKE LED ON/OFF
16
VDD
-
-
+5V
