KDC-W8534/W8534Y
KDC-X790
6
COMPONENTS DESCRIPTION
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q3,5,6
Level shift (3.3V-5V) transistor with 2 elements
Q7
Level shift (3.3V-5V) transistor
Q8
APC (Auto Power Control) transistor
Q9,10
Transistor for preceding beam delaying SW during
non-search
Q11
A5V power supply constant circuit FET
Q12,13
SW8V SW transistor
Q14,15
SDRAM 3.3V power supply SW transistor
SDRAM power supply is turned off when /CSRST is “L”.
D2
UPD63712GC built-in resetting terminal static protection
diode
D3
Protection diode for pick-up laser diode
D4,D5
Diode for securing audio L-R reference voltage
D6
Diode for control terminal’s “L” confirmation for IC20
and IC21
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM MICROCOMPUTER : 30625MGPA78GP/30625MWPA79GP (X34 : IC102)
Pin No.
Pin Name
I/O
Function
Processing Operation
1
VREF
-
Analog reference voltage
2
AVCC
-
3
LX DATA S
I
Data from slave unit
4
LX DATA M
O
Data to slave unit
5
LX CLK
I/O
LX-BUS clock
6
WIRED REMO
I
External display remoter controller
7
LX MUTE
I
Mute request from slave unit
H : MUTE ON, L : MUTE OFF
8
AUD SDA
O
E-VOL data
SPI communication
9
AUD SEL
O
E-VOL control
SPI communication
10
AUD SCL
O
E-VOL clock
SPI communication
10
DSP_SCL
O
DSP clock output terminal
SPI communication
11
DAC RST
O
DAC reset
L : DAC RESET
11
NC
O
Not used
L-output for models without DSP
12
NC
-
Not used
13
BYTE
-
GND
