Akai LTC-26N680HCP Service Manual

LTA-32N658HCPLTA-32N680HCPLTC-26N680HCPLTC-32N680HCP

● Teletext function ● Supports 16bits DDR memory interface ● Multi-screen display mode ● OSD and VBI/Closed caption and advanced OSD engine Pin funct

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Table2 Pin Assignments for Analog Support Interface Table3 Pin Assignments for Analog Input Interface Table4 Pin Assignments for Capture Interface

Table5 Pin Assignments for Frame Buffer Memory Table6 Miscellaneous Pin Assignments 13

Table7 LVDS Output Pin Assignments Table8 HDMI Interface Pin Assignments Table9 Analog Audio Input/Output Interface Pin Assignments 14

Table10 Digital Audio Interface Pin Assignments Table11 Pin Assignments for Power and Ground 15

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SVP-CX32LF/ SVP-CX68LF internal block diagram: 3．AT24C64-SO8-DNS brief introduction: The AT24C64A provides 65,536 bits of serial electrically e

Main features: • Low-Voltage and Standard-Voltage Operation – 2.7 (VCC = 2.7V to 5.5V) – 1.8 (VCC = 1.8V to 5.5V) • Low-Power Devices (ISB = 6μA @ 5.5

LCD COLOUR TV SERVICE MANUAL MODEL: LTC-26N680HCP LTC-32N680HCP LTA-32N680HCP LTA-32N658HCP CHASSIS NO.: LS02/PS02 1

AT24C64-SO8-DNS internal functional block diagram： 4．W25X80-VSSIG brief introduction W25X80-VSSIG main features: Family of Serial

Data Transfer up to 150M-bits/second ● Clock operation to 75MHz ● F a s t R e a d D u a l O u t

W25X80-VSSIG internal block diagram: 5．HY5DU281622FTP-4 brief introduction: The HY5DU281622FT(P) is a 134,217,728-bit CMOS Double Data Rate(D

The data paths are internally pipelined and 2-bit prefetched to achieve very high bandwidth. All input and output voltage levels are compatible with S

Pin introduction: 23

HY5DU281622FTP-4 internal block diagram: 6. TDA9885T/TDA9886T brief introduction: The TDA9885 is an alignment-free multistandard (PAL and NTSC) v

· Fully integrated VIF Voltage Controlled Oscillator (VCO), alignment-free, frequencies switchable for all negative and positive modulated standards v

TDA9886T internal block diagram: 26

7. 74HC4052 brief introduction: The M74HCT4052 is a dual four-channel analog MULTIPLEXER/DEMULTIPLEXER fabricated with silicon gate C2MOS technology a

74HCT4052 internal block diagram: 8. 74LVC14A brief introduction: The 74LVC14A is a high-performance, low-power, low-voltage, Si-gate CMOS device,

Please read this manual carefully before service. 2

14.TDA7266SA brief introduction: The TDA7266SA is a dual bridge amplifier specially designed for TV and Portable Radio applications. Feature: • WIDE S

TDA7266SA internal block diagram: 30

2BChapter 3: Analysis of Signal process Flowchart and key point measure date This chapter mainly introduces the receipt and dispose of AV sign

R408(80mA) * FB22* FB22(320mA) FB6(13mA) FB26(112mA) FB29(30mA) FB28(44.5mA) FB16(20mA) FB15（160mA） FB17(45

FB23* FB25 FB24（530mA） FB25 FB33 (187mA) (354) FB6 FB27* FB29 FB28 L3(38.5mA) L4(69.5mA) FB2(51mA) FB5(1

(13,45mA) FB19(40.8mA) D18，D17 FB3 (27mA) FB4 (62mA) Power Amplifie

(2) Position number Component model Pin 1(V) Pin 2(V) Pin 3(V) U19 AP1117D25 GND 2.5V 5V U20 AP1117E33 GND 3.3V 5V U23 AZP1122EL GND 1.2V

(1) Socket definition Serial number Position number Connecting object Function description 1 CON1 Power panel +12V，+12V ，GND，GND 2 CON4 Speaker

L U23 AP1122EL 5V to 1.2V DC conversion M U27 TDA7266SA Audio amplifier (BTL output) N U8 AFT7/W003 AFT7/W103 AFT7/W300 Tuner output sound IF and

(3) RF inputting color bar signal, clock signal SDA, pin 10 of U9, pin 5 of U3, pin 5 of U12, pin 5 of U16, pin 153 of U1, pin 5 of tuner U15: (

Catalog UChapter1 Specifications and CompositionU ...4 UChapter2 Function Introduction of Main

(7)Inputting sound signal with 1KHz frequency, with the processing of U33 and power amplifier TDA7266DNS, waveform at pin 1, 2, 14, 15 of U33, and wa

3BChapter 4: Maintenance Procedure and Examples of Typical troubleshooting 1. Failure phenomenon: The picture is normal, but OSD has line in it. T

Symptoms Possible Reason Solutions No picture, no sound, and no indicator light on 1.The power cord is not plugged in 2.The power is off 1.Plug the

4BChapter 5: Spare Part Lists This listing of maintenance and repair parts are presented for reference only, modification of parameters will no

5BChapter 6: Factory Setup and notice 1. Enter factory menu Switch on TV set, and make LCD at operating state: ① Press 【MUTE】 key on remote control

Channel Table ChangHong Exit Menu Use 【P+】and 【P-】keys on remote control to make up or down option, and use【V+】and【V-】keys to set. Content

Tnt Min 20H Bas Min 00H Tnt Mid 80H Bas Mid 30H Tnt Max E0H Bas Max 60H Shp Min 00H Shp Mid 60H Shp Max A0H White Balance No

B. White balance needs to be set in “Normal”mode; C. Set CLEAR E²PROM will clear the memory data, So do not set it unless it is needed; other setting

Appendix ：LS02/PS02 module Circuit Schematic Diagram 47

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0BChapter 1: Specifications and Composition 1. Models for LS02/PS02 chassis : Region Europe America Other regions Original Models LT26GHxxE LT37

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IFPb1R3SCART1LVDSD_PortCHN ModelLO1EU Model5VTV-CVBS,SIFPb1IR_KeyVGALin2/Rin2 Lo2/R02V1R1L2Y1Pb1PR1/L3R38Mx16DDRSpeakerY C19L3Pb1R2TUNERSCART2SVP_AX32

4. Introduction of PCB module LCD TV with LS02/PS02 Chassis is made up of power board, side AV board, remote control reception board, key board, and

Chapter 2: Function Introduction of Main IC 1. Main ICs and functional modules of LS02/PS02 chassis No. Item no. Model Main function 1 U8 AFT7

7 BP +B For PLL & Mixer 8 ADC/NC ADC Input/ No Connected 9 NC No Connected 10 NC No Connected 11 IF1 IF Output 12 ANT VHF/UHF Sign