KNA-DV2600
3
COMPONENTS DESCRIPTION
MAIN UNIT
Ref No.
Application/Function
Operation/Condition/Compatibility
IC101
Switching regulator IC
DC/DC Converter voltage controller for 6.8V and 3.3V power lines
IC103
AVR IC
3.3V output
IC104
AVR IC
5V output
IC105
Comparator
ACC & BU voltage detector
IC106
AVR IC
1.8V output
IC107
Reset IC
When momentary power down has detected, IC outputs "Lo".
IC110
Reset MI-COM
Reset controller for Main CPU and peripheral circuits
IC201
Main CPU (SH4)
IC202
Data controller
Data selector of data bus
IC301
Video DAC+NTSC encoder
IC302
NAND
Clock buffer
IC303
Graphics controller
Graphics data generator (FMU III)
IC352
Op. Amp.
Audio and beep signal adder and buffer
IC353
Analogue SW
IC357
AND
Audio mute control signal generator
IC433~437
Inverter
IC438
AVR IC
3V output
IC452
Inverter
Vehicle speed pulse waveform shaping
IC601
AVR IC
For DVD mechanism
IC606
NAND
DVD interrupt signal buffer (3V
5V level converter)
IC653
DARC decoder
FM multiple data demodulator
IC801
IO PULS
Extended IO
IC802
Inverter
IC809
Inverter
IC810
Inverter
IC901,902
SDRAM
128M
IC903
AND
SH-CKE buffer
IC904
NAND
CSRAM buffer
IC905
BOOT ROM
2M
IC906
SRAM
256K
T101
PON SW
While ACC is applied and IC110's P37 is "Hi", BU is supplied throu T101.
T102
PON SW
While ACC is applied, T102 is turned on.
T103
PON SW
When IC110's P37 becomes "Hi", T103 is turned on.
T104
Driver
T110 driver
T105,106
Driver
T111 driver
T107
BVCC3D power supply selector
T107 is turned on during BACKUP mode.
T108
BVCC3D power supply selector
T108 is turned on except BACKUP mode.
T109
Driver
T110 driver
T110
DC/DC chopper
For 6.8V AVR
T111
DC/DC chopper
For 3.3V AVR
T401
LMUTE driver
External LINE MUTE signal driver
T402
When T402's base becomes "Hi", T401 is turned on.
SUB UNIT
Ref No.
Application/Function
Operation/Condition/Compatibility
IC508
AND
TV monitor's RX/TX signal buffer
IC510
Signal selector
Remote control signal selector of TV and external remote sensor
T501
Audio mute SW
For RCA pin jack
T502
Audio signal buffer
For RCA pin jack
T505
TV audio signal mute SW
For TV monitor
T506
TV audio signal buffer
For TV monitor
T507
SYNC signal buffer
For TV monitor
T508
Mute SW driver
For audio signal muting