XOCECO PH-50T18 Скачать руководство пользователя страница 13

11 

PW2300 instruction of the pin:   

Pin Name Function 

Pin 

Name 

Function 

A4 XIN  Resonator 

input 

N4 

B_1 

AV1 blue input 

A5 

XOUT 

Resonator output 

P1 

R_2 

AV2 red input 

B2 SDA  I

2

C bus data 

P2 

B_2 

AV2 green input 

B3 SCL  I

2

C bus clock 

R3 

CVBS_SOG1 

T multiple green sync output 
of video signal 

K2 

VGA-R1  VGA red 

R4 

C_1 

S-VHS color signal input 

K1 

VGA-G1  VGA green 

B9 

GVBI 

Vertical blanking interval 

M1 

VGA-B1  VGA blue 

E16 

G_VS 

Vertical sync output 

T1 

VGA_H  VGA CH1 horizontal 

sync 

F14 

G_HS 

Horizontal sync output 

T3 

VGA_V 

VGA CH1 vertical sync 

F15 

G_AHS 

Crude horizontal sync 

N1 

R_1 

AV1 red input 

G15 

G_DLK 

Clock output 

N1 

G_1 

AV1 green input 

B10-B12 
A10-A12 
C11-C12

GRE (0-7) 

Red data output 

P3 

SOG_2 

AV2 green sync input 

C13, 
C14 
B13, 
B14 
A13-A16

GGE (0-7) 

Green data output 

P4 

G_2 

AV2 blue input 

B15-B16
C15-C16 
E14 

GBE (0-7) 
 
 

Blue data output 

3.2 AD9398 
The chip of high-definition multimedia interface, AD9398 HDMI (High-D efinition  Multimedia 
Interface) this interface is the digital interface standard that bring up rapidly. The use of this 
interface is the transmission of electronic video signal of standard definition and high definition, and 
this interface provide the content protect technology. AD9398 also support HDCP (High bandwidth 
Digital Content Protection). AD9398 include a HDMI 1.0 interface module and a HDCP module. The 
inputted HDMI signal will be sent to the interface of this chip to make the decoding, simultaneity 
24-bit digital RGB signal and the related sync signals are outputted to N602 PW118 to make the 
processing. Moreover, HDCP module makes the communication by DDCSDA, DDCSCL and HDMI 
signal sources to make the video signal decoding. The chip connect a external memory N207 
24LC168SN that store the secret key of decoding required by HDCP, and make the communication 
by the pin MCL, MDA of AD9893. 
 
 
 
 
 
 

Содержание PH-50T18

Страница 1: ...PDP TELEVISION PH 50T18...

Страница 2: ...lignment instructions Method of software upgrading Block diagram Working principle analysis of the unit Diagnose and service of panel Wiring diagram Assembly list Trouble shooting guide Schematic diag...

Страница 3: ...eat radiation parts or direct exposure to sunlight Otherwise there will be kickbacks 1 5 In case foreign substances such as water liquid metal slices or others fall into the module carelessly power mu...

Страница 4: ...former On the other hand even if changes take place in the picture it can keep its brightness for a period of time several minutes It s a feature inherent with plasma and it s not abnormal However ple...

Страница 5: ...ecome a potential safety trouble 1 22 In addition to plasma screen the glass is a part of high value It has such functions as anti radiation adjustment of color temperature etc Please handle it carefu...

Страница 6: ...enu mode service mode Press the MENU button press the number button 1 9 7 9 enter factory menu then use VOL select item value and CH change it Press the MENU button exit the factory menu Check MEGA8 D...

Страница 7: ...djust 3 2 3 2 item ADC auto correction again 3 2 4 AV TV channel adjustment 3 2 4 1 sub brightness and sub contrast adjustment Input the AV color bar signal PM5518 COLOUR BAR 100 to VIDEO terminal adj...

Страница 8: ..._G let the color coordinate of seventh level be 285 and 290 Adjust offset_G and offset_B and gain_R and gain_G repeatedly until the value of the two levels gray scale to 285 and 290 Select 12000k of m...

Страница 9: ...et up the serial port COM Port Select corresponding serial port if it s unable to FLASH WRITE change to another port Baud is selected to be 115200 Then select Reset Target After Download Click FLASH p...

Страница 10: ...Audio MP7720 x 2 Class D NJW1109 Speaker Earphone SDRAM PW118 MCU and scaler AD9398 HDMI Flash MX29LV800 DDR SDRAM 128M EM6A9320 PDP SCREEN 24bit RGB 24bit RGB AV2 Audio HD2 Audio S Video YPbPr1 YcbC...

Страница 11: ...e video decoding then the video signal of S VIDEO YpbPr1 YpbPr2 VGA send to PW2300 N700 synchronously All of these video signals shall be sent to this chip to make the video decoding or the AD convers...

Страница 12: ...mainly the functions of 3D comb filter the channel switch 5 line Y C separation the color decoding and so on It connect external SDRAM chip N703 HY57V161610E treated as the internal memory to assist...

Страница 13: ...14 GBE 0 7 Blue data output 3 2 AD9398 The chip of high definition multimedia interface AD9398 HDMI High D efinition Multimedia Interface this interface is the digital interface standard that bring up...

Страница 14: ...ATA HDCP serial data I O 20 21 MCLK Control clock output 51 MCL HDCP control series data clock 22 I2S_SCK Audio series clock output 52 MDA HDCP control series data I O 23 I2S_WS Bus clock data output...

Страница 15: ...of this set It take charge of all control except for the power supply control including the control of each chip operation in the main board eg the image manipulation the channel switch the image disp...

Страница 16: ...rnal block diagram The arrangement diagram of the pins 3 4 M52797 M52797 is a AV switch chip controlled by IIC This chip include 4 group of video input and 4 group of audio input 2 video output and 1...

Страница 17: ...15 M52797 Internal block diagram The arrangement diagram of the pins...

Страница 18: ...Video output to AVOUT interface 7 AV1 audio input 24 Left track audio output 8 AV1_R audio input 25 TV_R audio input 9 AV2_L audio input 26 TV video input 10 AV2 audio input 27 TV_L audio input 11 AV...

Страница 19: ...6 Left and right track of HDMI 11 19 Left and right track of audio output 4 25 Left and right track of VGA 3 6 LA72700 STEREO SAP DECODER PIN description Pin No Name Description Pin No Name Descriptio...

Страница 20: ...driving signal for X and Y driving boards Logic BUFFER board To convert the data signal and control signal sent from the logic board into the signals required by COF Y BUFFER board to transmit the sc...

Страница 21: ...oblem lies in our main board or video frequency processing board which will be dealt with separately d If the screen is not lit then first replace the power supply board to see if the problem is solve...

Страница 22: ...problem still remains when the replacement is over then replace the logic board 5 There appears on the screen a mono color signal and one or several vertical bright lines of other colors a If it s a v...

Страница 23: ...rd X600 X400 X405 RS 232 HDMI VGA YPbPr YCbCr1 YPbPr YCbCr2 Power supply filter board Speaker assembly button board Logic board LA03 Power supply board CN9004 CN9003 CN8001 X301 X300 X302 X904 X903 X9...

Страница 24: ...A EDID 301 IL37T25 04 RC I04 remote control 535 DZ2850 01 Panel stand assembly DZ 2850 535 PH50D8 05 Mounting assembly 615 20513 AW0 Speaker assembly 667 PSIT6 55A High frequency board 667 PH50T18 69...

Страница 25: ...light is on Check 5V STBY Cut off the connection between power supply board and data board and test 5V STBY Check N401 and keyboard The problem of power supplies board Check power supply D3 3V D5V Mea...

Страница 26: ...but no picture Display logo Check if all other channel has no picture N602 PW118 and periphery circuit Turn to check 4 of program Check if the G401 and G7000 have the signal wave Unfix X405 and X406...

Страница 27: ...8 is output The sound damaged Check if the second pin of sound power amplifier input the signal Measure if the sound input of current channel of N907 is normal Check N907 or peripheral circuits Check...

Страница 28: ...face circuit Check if the YPRYPB input pin of N700 have signal Check N700 and periphery circuit Yes No No Yes Check if the input signal of N700 is normal Check if AV channel is normal N700 damaged Che...

Страница 29: ...nd definition TV set abnormal vertically on half screen of high definition TV set They may be caused by the damage of the address BUFFER module that directly corresponds to its position or may be caus...

Страница 30: ...Digital board...

Страница 31: ...Digital board...

Страница 32: ...Digital board...

Страница 33: ...Digital board...

Страница 34: ...Digital board...

Страница 35: ...Digital board...

Страница 36: ...Digital board...

Страница 37: ...Digital board...

Страница 38: ...High frequency board...

Страница 39: ...Key board...

Страница 40: ...603 PH50T180 03 Ver 1 0...

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