Kenwood DNX4280BT Service Manual page 7

Ref. No. Application / Function
IC5 Logic
IC6 LDO
IC100 DCDC controller
IC101 LDO
IC200 Logic
IC201 Voltage detect IC
IC202 MCU IC
IC203 iPod Authentication Coprocessor
IC204 LDO
IC400 OP Amp
IC401 LDO
IC402 F ROM
IC403 Logic
IC404 LDO
IC405 LDO
IC406 LCD Controller
IC407 Logic
IC700 Logic
Q1,2 SW
Q4~6 SW
Q7 SW FET
Q100~103 SW
Q104~107 SW
Q108~110 SW
Q113,114 SW
Q115~117 SW
Q200 SW
Q203 SW
Q204~207 SW
Q208 SW
Q209 SW
Q212~218 SW
Q219 SW
Q220 SW
Q221,222 SW
Q400~403 SW
Q404,405 Buffer
Q600~605 SW
Q700 LED B lighting
Q701 LED G lighting
Q702 LED R lighting
Q703 SW
Q705 SW
COMPONENTS DESCRIPTION
OR
3.3V Regulator
LCD power supply, Variable LED power supply
3.3V Regulator
Panel μCOM terminal protection
Reset signal generate at 4.4V
Panel system control IC
iPod Authentication
3.3V Regulator
VCOM AMP
1.8V Regulator
Mstar FIRMWARE ROM
AND
3.3V Regulator
1.8V Regulator
Croma γ T/C Scaller
AND
Inverter
Soft start for Input power supply for LCD Backlight
Input power supply detection
DCDC SW FET (LCD Backlight)
Soft Start for +18V
Soft Start for +9.2V
Soft Start for -6V
Soft Start for -6V
Soft Start for +9.2V
Reset signal control for Panel μCOM
Reset signal control for Panel μCOM
Soft Start for Panel μCOM power supply
Reset signal control for Panel μCOM
BL_PDET signal control for Panel μCOM
Soft Start for Panel μCOM power supply
RCAM_INT signal control for Panel μCOM
Soft Start for Panel μCOM power supply
Reset signal control for Panel μCOM
Soft Start for LCD controller power supply
Buffer for temperature property absorption
Control for touch panel
LED B Constant current circuit
LED G Constant current circuit
LED R Constant current circuit
KEY LED signal control
ILL_R signal control
DNX4280BT/5180/5280BT/5380/5380M
/5380BT/5580BT/6040EX/6180/6480BT/6980
Operation / Condition / Compatibility
7