Gebruiksaanwijzing /service van het product 28LD5200E van de fabrikant Hitachi
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SPECIFICA TIONS AND P ARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT . LCD Television March 2004 Digital Media Division 28LD5200E (PW1L) SER VICE MANUAL Be sure to read this manual before servicing. T o assure safety from fi re, electric shock, injury , harmful radiation and materials, various measures are provided in this HIT ACHI LCD monitor .
2 28LD5000T A (PW1L) CAUTION FOR SAFETY Please read this page before repair ing the monito r . This page explains t he following items to ensure the safety of set and prevent accident s during repair work. W e explain by symbol s wh at damage or injury may occur if errors are made .
28LD5200E (PW1L) PRECAUTIONS ● How to clean the LCD screen panel of the monitor Before cleaning the monitor , turn of f the monitor and disconnect the power plug from the power outlet. T o prevent scratching or damaging the LCD screen face, do not knock or rub the surface with sharp or hard objects.
4 28LD5200E (PW1L) 2. Specifications Panel Display dimensions Approx. 28 inches (599.04 (H) x 359.42 (V) mm) Resolution 1280 (H) x 768 (V) pixels Net dimensions 854 (W) x 516 (H) x 277 (D) mm Net weight 21.
5 28LD5200E (PW1L) 3. Component names CLE-958 PROGRAM DOWN button ( SELECT button) INPUT SELECT button (OK button) PROGRAM UP button ( SELECT button) These buttons are located on the top. SUB-POWER button Control panel VOLUME UP/DOWN buttons ( ADJUST buttons) MENU button ( ) indicates the function while the MENU is displayed on the screen.
6 28LD5200E (PW1L) 4.Adjustment ● How to get to Adjustment mode Using the front control buttons with the set turned off (standby) can activate it. Press the SUB-POWER( ) button, INPUT SELECT( ) button and button at the same time, and hold for more than 5 seconds.
7 28LD5200E (PW1L) Service adjustment items by I 2 C-bus control O : Should be adjusted : Should be followed previous data Function ADJ. No. Adjustment Items Mode Maximum Value Default Formatter P.
8 28LD5200E (PW1L) O : Should be adjusted : Should be followed previous data Function ADJ. No. Adjustment Items Mode Maximum Value Default Formatter PWB VIDEO PWB TUNER PWB LCD PANEL Changed Compo.
9 28LD5200E (PW1L) O : Should be adjusted : Should be followed previous data Function ADJ. No. Adjustment Items Mode Maximum Value Default Formatter PWB VIDEO PWB TUNER PWB LCD PANEL Changed Compo.
10 28LD5200E (PW1L) O : Should be adjusted : Should be followed previous data Function ADJ. No. Adjustment Items Mode Maximum Value Default Formatter PWB VIDEO PWB TUNER PWB LCD PANEL Changed Comp.
11 28LD5200E (PW1L) O : Should be adjusted : Should be followed previous data Function ADJ. No. Adjustment Items Mode Maximum Value Default Formatter PWB VIDEO PWB TUNER PWB LCD PANEL Changed Comp.
1 2 28LD5200E (PW1L) O : Should be adjusted : Should be followed previous data Function ADJ. No. Adjustment Items Mode Maximum Value Default Formatter PWB VIDEO PWB TUNER PWB LCD PANEL Changed Com.
1 3 28LD5200E (PW1L) O : Should be adjusted : Should be followed previous data Function ADJ. No. Adjustment Items Mode Maximum Value Default Formatter PWB VIDEO PWB TUNER PWB LCD PANEL Changed Com.
1 4 28LD5200E (PW1L) O : Should be adjusted : Should be followed previous data Function ADJ. No. Adjustment Items Mode Maximum Value Default Formatter PWB VIDEO PWB TUNER PWB LCD PANEL Changed Com.
1 5 28LD5200E (PW1L) The Expression of input signal mode (format) P AL1: RF , S and Composite of P AL/SECAM P AL2: Component of P AL (YCBCR) P AL3: Component of P AL (YPBPR) P AL4: Component of P AL (.
1 6 28LD5200E (PW1L) Item AUTOMA TIC SIGNAL LEVEL ADJ USTMENT –RGB (1) Preparation Procedure (1) Input the adjustment signal of VGA (60Hz) format into RGB2 [D-sub] input terminal. (1) Select RGB2 and enter the service adjustment mode. the adjustment signal (2) Select No.
1 7 28LD5200E (PW1L) Item COLOR TEMPERA TURE ADJ USTMENT -VIDEO Preparation Procedure [Adjustment of Cool mode] Enter the service adjustment mode, and confirm that Adjustment NO 0,1 are set as 230. NO2 is set as 255. If initial x and y value are larger than specification, No.
1 8 28LD5200E (PW1L) Item COLOR TEMPERA TURE ADJUSTMENT -PC Preparation Procedure It is same as color temperature adjustment data of video. Write the data which are inside drive No0 to No1 1 into drive N0.12 to No.23 respectively . Example. [at VIDEO] [at PC] No.
1 9 28LD5200E (PW1L) 5. T roubleshooting How to get to Burn-in mode This mode displays the test patterns of some single color raster in turn. These signals are from built-in generator of LCD monitor . Using the front control buttons with the set turned off (standby) can activate this mode.
20 28LD5200E (PW1L) Ye s [1] +5V [5] +12V [3] GND Ye s Ye s Ye s Speaker Picture is displayed. But no sound Are the voltages applied to EAJ1[1][5]pins of the Audio PWB? Are the signals applied to EAF1.
2 1 28LD5200E (PW1L) No(low) No red green/orange Y es(high) Ye s No Ye s Is the LED red or Is backlight lighting? green/orange? Picture is not displayed (LED is lighting) Is the voltage of P802[5]pin .
2 2 28LD5200E (PW1L) 6. Self-Diagnosis Function Signal circuit check mode: It indicates the check result on some points of the signal circuit and the history of them with On -Screen Display (OSD).
THE UPDATED PARTS LI ST FOR THIS MODEL IS AVAILABLE ON ESTA 23 Downloaded From TV-Manual.com Manuals.
2 4 28LD5200E (PW1L) Speaker x2 Main Power SW Remote Control AC100V -240V CPU (Main) Formatter PWB OSC 16MHz Audio Processing Audio Signal Processing Unit TMDS (RECEIVER) RGBHV (Digital) Audio Signal .
2 5 28LD5200E (PW1L) Block diagram 2/2 Downloaded From TV-Manual.com Manuals.
2 6 28LD5200E (PW1L) EU Tuner T ransfer Board EU-ENG295244G 11 12 FE.MODE FE.SAP 13 14 FE.ST MSP .ST ATUS MSP .RESET 15 GND GND GND GND SDA0 VIDEO.DET1 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 41 42 43 TX.RESET A+6V STB+5V A+10V SCL0 DIP .DET TUNER.
2 7 28LD5200E (PW1L) EAS1 TO SP (Right) EAS2 EJF1 P901 P903 CN1 INVERTER UNIT AUDIO board FORMA TTER board JOINT board POWER board LED board POWER SW INLET board SUB POWER board ECONT EJA1 EJF2 CN4 CN.
2 8 28LD5200E (PW1L) The codes in brackets shown in the wiring diagram express the name of materials. The key to the codes and materials is shown on the table below .
Hitachi, Ltd. Tokyo, Japan International Sales Division THE HITACHI ATAGO BUILDING, No. 15 – 12 Nishi Shinbashi, 2 – Chome, Minato – Ku, Tokyo 105 - 8430, Japan.
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