AV42 PD20ES SERVICE MANUAL PLASMA WIDE TELEVISION BASIC CHASSIS AV42PD20ES CONTENTS ! SPECIFICATIONS ･････････････････ ･･････････ ･･･ ･･ ･･･ ･･････ ････ ･･････ ････ ･･････ 2 ･････････ ････････ ･･････････ ･･ ･･･ ･････････････････ ･･････････ ･･･ ･･ ･････････ ････････ ･･････････ ･･ ･･･ ･･ ･･･ ･･ ････ ････ ･･ ････ ････ ･･ ･･...
AV42PD20ES SPECIFICATIONS Item CONT ENTS Dimensions ( W× × × × H× × × × D ) 104.8cm×114.0cm× 35.8c m Mass 58.0kg TV RF System CCIR B/G, I, D/K, L ,L’ Colour System PAL / SECAM & NTSC 3.58 / NTSC 4.43 (NTSC play back only)
AV42PD20ES ■ ■ ■ ■ 21-PIN EURO CONNECTOR (SCART socket) : EXT-1 / EXT-2 / EXT-3 (P-P= Peak to Peak, S-W= Sync tip to white peak, B-W= Blanking to white peak) Signal Designation Matching Value EXT-1 EXT-2 EXT-3 ○ ○...
専用 専用 対応＞ 対応＞ 中嶋 中嶋 AV42PD20ES SAFETY PRECAUTIONS 1. The design of this product contains special hardware, many 7. Isolation Check circuits and components specially for safety purposes. For (Safety for Electrical Shock Hazard) continued protection, no changes should be made to the original After re-ass embling the product, always perform an isolation design unless authorized in writing by the manufacturer.
AV42PD20ES SAFETY PRECAUTIONS [UK MODEL] 1. The design of this product c ontains special hardware and many rated for wattage, etc . Replacement parts which have these circuits and components specially for safety purposes. For special safety characteristics are identified in the Parts List of continued protection, no changes should be made to the original Service Manual.
AV42PD20ES FEATURES " New chassis design enable us e of an interac tive on screen " Users can make VCR dubbing of picture and sound by controlling control. the AV selector to s elect an optional s ource at the EXT-2 output "...
AV42PD20ES FUNCTIONS FRONT TERMINAL ■ ■ ■ ■ FUNCTION NAME 1PC IN CONNECTOR (15pin D-sub connector) 2HEADPHONE JACK (MINI JACK) 3EXIT-4 TERMINAL 4VOLUME ( ) BUTTON Press this button to dis play the volume level indicator. Press the ⑤ up/down (∨/∧) buttons to change volume while the volume level indicator is dis played.
AV42PD20ES REMOTE CONTROL UNIT ■ ■ ■ ■ FUNCTION NAME 1 MUTING Key ( 2 NUMBER ( ten) Key 3 ZOO M Key 4 HYPER SOUND Key 5 INFORMATION Key ( 6 TV Key 7 VOLUME -/+ Key 8 STAND-BY Key ( POWER)
AV42PD20ES TECHNICAL INFORMATION PDP (PLASMA DISPLAY PANEL) DESCRIPTION ! CAUTION Although a PDP is made with highly advanc ed precision, this does not nec essarily mean all of the cells operate correctly. The PDP inevitably inc ludes cell that do not light or light constantly.
AV42PD20ES (3) PIXEL FAULT SPECIFICATION Criteria for number of Screen display Criteria for number of faulted cell consecutive faulted cell A zone: 2 or less than 2 in each colour 2 or Les s than 2 Br ight fault All blac k screen...
AV42PD20ES INSTALLATIONS (3) Ins tall in not dusty place. If dust covers the air intake holes , 1. SAFETY PRECAUTION FOR PDP OPERATION inside ventilation effect will reduc e. Then, it may damage the (1) Do not prevent the radiation of heat from back, top and flank inner circuit.
AV42PD20ES SPECIFIC SERVICE INSTRUCTIONS PRECAUTIONS FOR PDP USE 1. PRECAUTION DURING TRANSPORTATION 3. INFRARED RAYS When this unit is delivered, the PDP body inside of the box will be Becaus e the near infrared rays (800～1000mm) radiate from the subject to constant of gravitation under the rough handling panel face, the neighboring infrared ray remote controllers, (throwing, dropping, etc.) even though a rigid box is used.
AV42PD20ES DISASSEMBLY PROCEDURE SEPARATION SEPARATING THE PDP MONITOR UNIT AND LOWER BLOCK  REMOVING THE BACK COVER 1. Remove the 5 screws marked A as shown in Fig.2. SIDE COVER 2. Remove the 2 screws marked B as shown in Fig.2.
AV42PD20ES LOWER BLOCK REMOVING THE LOWER BLOCK  REMOVING THE SPEAKER NET / CENTER PANEL / FRONT SW PWB / SW LEVER [NOTE] 1. Remove the 4 screws marked C (L&R side) as shown in Fig.5. The periphery of the receiver unit is a wooden cabinet. When the 2.
AV42PD20ES RECEIVER UNIT CHASSIS CASE CONNECT OR CASE SPEAKER BOX COVER (× × × × 2) (× × × × 6) CHASSIS BEAM AV PLATE RECEIVER UNIT (× × × × 10) (× × × × 4) Fig.3 Fig.4 SW LEVER (×...
AV42PD20ES MONITOR UNIT SIDE COVER REMOVING THE MONITOR UNIT REAR COVER ( × × × × 2) (× × × × 3)  REMOVING THE REAR COVER / SIDE COVER ＊ Take out the MONITOR UNIT. ＊ Take out the RECEIVER UNIT.
AV42PD20ES REPLACEMENT OF MEMORY ICs 1. MEMORY ICs This TV uses memory IC. In the memory IC, there are memorized data for c orrec tly operating the video and deflection circuits. When replac ing the memory IC, be sure to use an IC written with the SE RV ICE ME NU initial values of data.
AV42PD20ES SETTING VALUE OF SYSTEM CONSTANT SET (TABLE 1) Setting item Setting content Setting value 1. DESTINATION 2. Digi Pure 1 TUNER 2 TUNER 3. PIP 1 TUNER 4. PIC & TEXT 5. TDA9178 6. FLAT SERVICE MENU SETTING ITEMS (TABLE 2)
AV42PD20ES USER SETTING VALUE (TABLE 3) Setting item Setting value Setting item Setting value SUB POWER VOLUME Appropriate s ound volume SHIPPING CHANNEL DISPLAY INDICATED See OPERATING PRESET CHANNEL ZOOM MODE PANORAMIC INSTRUCT IONS. PICTURE SETTING EXT SETTING TINT (COLOUR TEMP.)
AV42PD20ES REPLACEMENT OF CHIP COMPONENT ! CAUTIONS 1. Avoid heating for more than 3 seconds. 2. Do not rub the electrodes and the resist parts of the pattern. 3. When removing a c hip part, melt the s older adequately.
NOTE This model (AV42PD20ES) consists of a MONITOR and a RECEIVER. However, the MONITOR and RECEIVER c annot be activated separately. T rying the s eparate ac tivation of the MONITOR or RECEIVER may c ause a trouble. Always try to ac tivate the MONITOR and RECEIVER as a unit during a s ervic e repair.
AV42PD20ES ADJUSTMENT PART LOCATIONS ! RECEIVER ! MONITOR (PDP) No. 51955...
AV42PD20ES BASIC OPERATION SERVICE MENU 1. TOOL OF SERVICE MENU OPERATION Operate the SERVICE MENU with the REMOTE CONTROL UNIT. 2. SERVICE MENU ITEMS With the SERVICE MENU, various settings (adjustments) c an be made, and they are broadly c lassified in the following items of settings (adjus tments ): (1) 1.
AV42PD20ES SERVICE MENU FLOW CHART SERVICE MENU S ERV ICE M ENU 1. IF 2. V/C 3. AUD IO 4. DEF 5. VSM PRESET 6. ST AT US Don't select under the adjustm ent 7. PIP 8. - - - 9.
AV42PD20ES (3) Setting methods " Method of Setting 1.IF as [VCO] (The adjustment should not be done without s ignal.) ① 1 Key ･･･････ ･････････････ ･････ Select 1.IF. ② 1 Key ･･･････ ･････････････ ････ Select 1. VCO (CW) Check the arrow position between the “ABOVE REF. and BELOW REF.
AV42PD20ES INITIAL SETTING VALUE OF SERVICE MENU 1. Ad justment of the SERVICE MENU is made on the basis of the initial setting values ; however, the new setting values which set the screen in its optim um condition may differ from the initial setting.
AV42PD20ES 5.VSM PRESET VSM pr eset mode COOL NORMAL WARM Setting item 1. CONT . 2. BRIGHT 3. SHARP 4. COLOUR 5. HUE 6. R. GAIN 7. G. GAIN 8. B. GAIN 7.PIP is adjustment not to required ) Initial setting value...
AV42PD20ES ADJUSTMENT ■ MONITOR Measuring Item Test point Ad justment part Description instrument Ad justment TP-1 (+5V) VR1 (+5) ＊ ＊ ＊ ＊ Ad justment of Vs(+170V) voltage. of POWER voltmeter TP-2 (# # # # ) VR3 (+170V) 1. Input the colour bar signal to RGB input terminal.
AV42PD20ES VSM PRESET SETTING Measuring Item Test point Ad justment part Description instrument Setting of Remote 1. CONT. 1. Press the MENU (OK) key and s elect COOL mode with the VSM PRESET control unit 2. BRIGHT remote control unit.
AV42PD20ES Measuring Item Test point Ad justment part Description instrument Ad justment Remote 6.COLOUR [Method of adjustm ent without m easuring instrument] control unit of SUB < PAL COLOUR > COLOURⅠ Ⅰ Ⅰ Ⅰ 1. Receive PAL broadcast. 2. Select 2.V/C from the SERVICE MENU.
AV42PD20ES Measuring Item Test point Ad justment part Description instrument Ad justment Signal TP-R 6.COLOUR [Method of adjustm ent using measur ing instrument] TP-E( # # # # ) of SUB gener ator < PAL COLOUR > COLOUR Ⅱ Ⅱ Ⅱ Ⅱ...
AV42PD20ES Measuring Item Test point Ad justment part Description instrument Ad justment Remote 7.HUE [Method of adjustm ent without m easuring instrument] control unit < NT SC 3.58 HUE > SUB HUEⅠ Ⅰ Ⅰ Ⅰ 1. Input a NTSC 3.58MHz COMPOSITE VIDEO signal (full field colour bar with 75% white) from the EXT terminal.
AV42PD20ES Measuring Item Test point Ad justment part Description instrument Checking Signal 9. VCO 1. Input a PAL half colour bar signal (75% white) from the EXT gener ator terminal. MAIN COLOUR 2. Select 2. V/C from the SERVICE MENU.
AV42PD20ES DEFLECTION CIRCUIT ADJUSTMENT " When the FULL mode has been established, the setting of other modes will be don e automatically. Ho wever, if the picture quality has not been optimized, adjust each mod e again, r espectively. " There are 5 aspect modes ( ① ① ① ① FULL, ② ② ② ② PANORAMIC, ③ ③ ③ ③ REGULAR, ④ ④ ④ ④ 16:9 ZOOM, ⑤ ⑤ ⑤ ⑤ 14:9 ZOOM) of the adjustment depending upon the kind of signals.
AV42PD20ES Measuring Item Test point Ad justment part Description instrument Ad justment of Signal 3.H-CENT. 11. Receive a cross hatch with circle pattern signal. gener ator 12. Select 3.H-CENT and set the initial setting value. H. POSIT ION 13. Adjust H-CENT to make C=D.
AV42PD20ES TROUBLESHOOTING MONITOR UNIT DOES NOT WORK (When the LED blinks with RED and GREEN alternatively) 1) Press the RESET SW while the power is turned off. MONITOR UNIT 2) Then, wait for two sec onds after turning the power on.