Akai LTA-26C904, Service Manual

Page: 7 / 50

6
Chapter 2 Function brief introduction of main ICs of
LCD TV with LS01 core
1. Main ICs and functional modules of
Akai LCD TV with LS01core
No. Item no. Model Main function
1 U15 JS-6H2/121
High frequency head, output sound and image
video signal
2 U1 SVP-CX32LF
Video decode, image processor, A/D and D/A
conversion
3 U2 IS42S32200C1-6TL SDRAM with 2MX32bits, used for the access of
image signal.
4 U3 AT24C64A-10PU-2.7 EEPROM
5 U4 T5BS4-9999 MCU
，
main control IC
6 U5 SST39VF040-70-4C-NHE Flash, whole machine control program is in it
7 U6 74ALVC573PW Address latch, to latch the address wires
8 U8 TCM809SENB713 Hardware reset IC of MCU
9 U9 74HCT4052D Audio input switch of AV terminal
10 U35 STV-8217/STV-8218 Audio signal processor
11 U14 74LVC14AD
VGA line and field synchronizing signal waveform
shaping
12 U16
、
U25 AT24C02BN-10SU-1.8 EEPROM
14 U18
、
U22 AZ1117H -1.8TRE1 3.3V to 1.8V DC level conversion
16 U19
、
U24 AZ1117H -3.3TRE1 5V to 3.3V DC level conversion
18 U20 AZ1084S -3.3TRE1 5V to 3.3V DC level conversion
19 U21 AZ1084S -1.8TRE1 5V to 1.8V DC level conversion
20 U23 AZ78L08ZTR-E1 12V to 8V DC level conversion
21 U26 CS4344-CZZ HDMI digital audio decode, D/A conversion
22 U28 、 U29 Rclamp0514M.TBT ESD protection device of HDMI input terminal
24 U30 ANX9011L HDMI digital signal decode
25 U31 PI5C3306LE Bus (SDA, SCL) switch used for program update
26 U33 TDA8944J Sound power amplifier (BTL output)