8mm CAMCORDER SCA20/SCA23 SCA25 SERVICE Manual For mechanical disassembly and adjustment, refer to the “Mechanical Manual” (DE-6 AD68-30200A). 8mm CAMCORDER CONTENTS 1. Precautions 2. Reference Information 3. Product Specifications and Comparison Chart 4. Disassembly and Reassembly 5. Alignment and Adjustment 6.
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Alternatively, wear a discharging Wrist-strap device. (Be sure to remove it prior to applying power--this is an electric shock precaution.) Samsung Electronics...
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Always inspect for pinched, out- of-place, or frayed wiring. Do not change the spacing between components and the printed circuit board. Check the AC power cord for damage. Make sure that leads and components do not touch thermally hot parts. Samsung Electronics...
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Reference Information 2. Reference Information 2-1 IC Blocks 2-1-1 IC101 (M52369FP) Samsung Electronics...
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Reference Information 2-1-2 IC601 (CXP87240A) Samsung Electronics...
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Reference Information 2-1-3 IC201 (CXA1700R) Samsung Electronics...
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Reference Information 2-1-4 IC501 (KA8322) Samsung Electronics...
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Reference Information 2-1-5 ICP01 (KS7213) Samsung Electronics...
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Reference Information 2-1-6 ICP03 (TDA8786A / AD CONVERTER) Samsung Electronics...
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SCA20 : Black and White electronic viewfinder SCA23/SCA25 : Color electronic viewfinder Lens SCA23/SCA25 : Combined 16x power zoom and 64x digital zoom SCA20 : Combined 16x power zoom and 32x digital zoom f=3.9 ~ 62.4 mm, F1.4 Auto wide macro Automatic focus system Inner...
4. Disassembly and Reassembly 4-1 Cabinet Disassembly 4-1-1 Cover Battery Removal Œ PUSH THE COVER BATTERY AND REMOVE IT IN THE DIRECTION OF ARROW. Fig. 4-1 Cover Battery Removal Samsung Electronics...
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Disassembly and Reassembly 4-1-2 Ass’y Cover Housing Removal ŒAPPLY POWER AND OPEN THE HOUSING ASS'Y. ´REMOVE 2 SCREWS. ˇREMOVE THE ASS'Y COVER HOUSING IN THE DIRECTION OF ARROW. Fig. 4-2 Ass’y Cover Housing Removal Samsung Electronics...
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TABS WITH A SMALL SCREW DRIVER. (SEE DATAIL "A") NOTE : WHEN REASSEMBLING, PUT THE 7 TABS INTO THE SLOT WHILE SLIDING IT AS SHOWN IN DETAIL "B". 2 LOCKING TABS PRECISION SCREW DRIVER DETAIL "A" DETAIL "B" Fig. 4-3 Ass’y Case Top Removal Samsung Electronics...
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Disassembly and Reassembly 4-1-4 Ass’y Front Removal (1) ˇ REMOVE THE ASS'Y FRONT IN THE DIRECTION OF ARROW. ´ REMOVE 1 SCREW ¨ DISCONNECT THE CONNECTOR FROM THE MAIN PCB. Œ REMOVE 1 SCREW. Fig. 4-4 Ass’y Front Removal (1) Samsung Electronics...
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ˆ REMOVE 1 SCREW AND THE COVER ROTATE BY TURNING IT. ¨ REMOVE 2 SCREWS AND THE ASS'Y MIC BOARD. ˇ REMOVE THE ASS'Y MIC Œ REMOVE 2 SCREWS. ´ DISCONNECT THE CONNECTOR FROM THE ASS'Y MIC BOARD. Fig. 4-5 Assy Front Removal Samsung Electronics...
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ˆ REMOVE THE ASS'Y CASE RIGHT IN THE DIRECTION OF ARROW "B". ´ REMOVE 2 SCREWS ¨ MOVE THE ZOOM SWITCH IN THE DIRECTION OF ARROW "A". ˇ REMOVE 3 SCREWS Œ REMOVE 1 SCREW Fig. 4-6 Ass’y Case Right Removal (1) Samsung Electronics...
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IN THE DIRECTION OF ARROWS "A","B". Œ REMOVE 2 SCREWS. ˆ REMOVE 2 CONNECTORS FROM THE MAIN PCB. ¨ REMOVE THE ASS'Y CASE LEFT IN THE DIRECTION OF ARROW "C". ´ REMOVE 1 SCREW. Fig. 4-7 Ass’y Case Left Removal (1) Samsung Electronics...
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Disassembly and Reassembly 4-1-8 Ass’y Case Left Removal (2) ´ REMOVE THE TERMINAL BOARD. Œ REMOVE 4 SCREWS Fig. 4-8 Ass’y Case Left Removal (2) Samsung Electronics...
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Disassembly and Reassembly 4-1-9 Ass’y Rear Board Removal (1) Œ REMOVE 1 SCREW. ˇ REMOVE THE ASS'Y CASE REAR IN THE DIRECTION OF ARROW. ´ REMOVE 1 SCREW. Fig. 4-9 Ass’y Rear Board Removal (1) Samsung Electronics...
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¨ REMOVE THE ASS'Y DECK IN THE DIRECTION OF ARROW. ˇ DISCONNECT THE FPC FROM THE MAIN PCB. Œ REMOVE 2 SCREWS ´ DISCONNECT THE FPC FROM THE ASS'Y DECK. Fig. 4-11 Ass’y Main Board and Ass’y Deck Removal Samsung Electronics 4-11...
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4-1-12 Ass’y Camera Removal (1) ´ REMOVE 2 SCREWS. ˇ DISCONNECT 3 FPC FROM THE MAIN PCB. Œ DESOLDER ¨ REMOVE THE ASS'Y CAMERA FROM THE MAIN PCB IN THE DIRECTION OF ARROW. Fig. 4-12 Ass’y Camera Removal (1) 4-12 Samsung Electronics...
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Disassembly and Reassembly 4-1-13 Ass’y Camera Removal (2) Œ REMOVE 1 SCREW ˇ REMOVE THE BRACKET-LENS. ´ REMOVE 1 SCREW. ¨ REMOVE 2 SCREWS. ˆ REMOVE THE ASS'Y PCB-CCD Fig. 4-13 Ass’y Camera Removal (2) Samsung Electronics 4-13...
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Disassembly and Reassembly 4-1-14 Ass’y EVF/CVF Removal Œ REMOVE 2 SCREWS ´ REMOVE THE ASS'Y EVF/CVF IN THE DIRECTION OF ARROW. Fig. 4-14 Ass’y EVF/CVF Removal 4-14 Samsung Electronics...
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MAIN PCB CNP02 CN001 TERMINAL PCB MAIN PCB CN901 CNE01 MAIN PCB CN602 CNE01 MAIN PCB CN603 CN801 FRONT PCB MAIN PCB CN851 MIC ASSY FRONT PCB CN802 MIC ASSY MAIN PCB CNP03 Fig. 4-16 Circuit Boards Location 4-16 Samsung Electronics...
PB RF Head Switching -Trigger CTP501 Fig. 1 Test point 4. After completing the adjustment, open the pin 67 of IC601 and GND to release the TEST mode. Main PCB (Component side) Fig. 2 The location of test point Samsung Electronics...
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START/STOP(CONFIRM) Data store after finishing adjustment by DATA UP/DOWN button. - (DATA DOWN) When changing data value of adjust state. + (DATA UP) BLC (MODE UP) Mode change. FADE (MODE DOWN) DATE (FAR ) Focus adjustment. TITLE (NEAR) Samsung Electronics...
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5. Set OSD on state. NEGATIVE STEP 3 On screen display show “CD HALLA XX XX” CAMERA ADJUSTMENT mode has successfully been activated. Note : When ÒXX XXÓ is shown in service adjustment precedures, this indicates variable values. Samsung Electronics...
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Note : ÒData 1Ó is previous setting in memory, ÒData 2Ó is Example) “ 00 XXXX XX “ now adjustment setting, that changes during adjustment mode. After pressing ÒSTART/STOP (Confirm)Ó, it goes to memory. SCA20 SCA23 MODE DATA1 DATA2 DATA1 DATA2 NAME OF ADJUSTMENT...
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R DETECT WINDOW H STOP POINT R DETECT WINDOW V START POINT R DETECT WINDOW V STOP POINT DSP ODM COMMEND NOT USED COLOR ADJUST START VALUE NOT USED NOT USED NOT USED CCD DEFECT COMPENSATION FACTOR ODM AE CLIP THRESHOULD VALUE Samsung Electronics...
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R INDOOR START VALUE OF W/B ADJUST R OUTDOOR CONTROL UP/DOWN MARGIN R INDOOR CONTROL UP/DOWN MARGIN B INDOOR CONTROL UP/DOWN MARGIN B OUTDOOR CONTROL UP/DOWN MARGIN INITIAL(POWER ON) R CTL START DATA INITIAL(POWER ON) B CTL START VALUE W/B TABLE MODE Samsung Electronics...
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VR ZOOM CENTER MARGEIN COLOR GAIN ADJUST SETUP AUTO ADJUST HALL CHECK THRESHOULD COLOR ADJUST TARGET VALUE HALL ADJUST GAIN TARGET HALL ADJUST CENTER NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED Samsung Electronics...
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NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED NOT USED 6. Initial data of camera parts adjustment - CAMERA AF 2nd MICOM (UPD784035GC-818) DATA SCA20 SCA23 SCA25 MODE DATA1 DATA2 DATA1 DATA2 DATA1 DATA2...
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Alignment and adjustment SCA20 SCA23 SCA25 MODE DATA1 DATA2 DATA1 DATA2 DATA1 DATA2 NAME OF ADJUSTMENT CHOR OUTDOOR B-Y NEGATIVE HUE AETAL AE TARGET (LOW BYTE) AETAH AE TARGET (HIGH BYTE) AGCMA AGC MAXIMUM CONTROL WBTAR WHITE BALANCE R TARGET...
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Alignment and adjustment SCA20 SCA23 SCA25 MODE DATA1 DATA2 DATA1 DATA2 DATA1 DATA2 NAME OF ADJUSTMENT R DETECT WINDOW V STOP POINT DSP ODM COMMEND CLIP COUNTER THRESHOULD COLOR ADJUST START VALUE R TARGET UP/DOWN OF D ZOOM B TARGET UP/DOWN OF D ZOOM...
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Alignment and adjustment SCA20 SCA23 SCA25 MODE DATA1 DATA2 DATA1 DATA2 DATA1 DATA2 NAME OF ADJUSTMENT R INDOOR START VALUE OF W/B ADJUST R OUTDOOR CONTROL UP/DOWN MARGIN R INDOOR CONTROL UP/DOWN MARGIN B INDOOR CONTROL UP/DOWN MARGIN B OUTDOOR CONTROL UP/DOWN MARGIN...
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Alignment and adjustment SCA20 SCA23 SCA25 MODE DATA1 DATA2 DATA1 DATA2 DATA1 DATA2 NAME OF ADJUSTMENT NOT USED BK NOISE TH/GAIN OF EIS H APPERTURE GAIN OF EIS #0C OF EIS ON #OD OF EIS ON #OE OF EIS ON...
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Full auto : Press ÒSTART/STOP (CONFIRM)Ó button for full auto adjustment. The camera will move both zoom and focus lens. The adjustment is finished when the O.K! message appears on the TV screen. 8M~10M(About 30ft) (Be sure to maintain the distance.) LENS Samsung Electronics 5-13...
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(MODE DOWN)Ó button so that the OSD state is Ò05 P.CLK XX XXÓ. 5) Adjust the Ò + (DATA UP)/ - (DATA DOWN)Ó button so that frequency is NTSC : SCA20/A23/A25 (9.534964MHz ±50Hz). PAL : VP-A20/A22/A23 (9.453125MHz ± 50Hz). P.CLK ADJUSTMENT uminance Main PCB (component side) 4.
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1500 to 2000 lx. 6) Adjust the Ò + (DATA UP)/ - (DATA DOWN)Ó button so that the white vector moves to the B-Y axial on screen of the vectorscope. 7) The OSD shows ÒOK!Ó. Samsung Electronics 5-15...
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7) Be sure to press the ÒSTART/STOP (CONFIRM)Ó button so that the blue level is 50IRE. 7) Be sure to press the ÒSTART/STOP (CONFIRM)Ó button to memorize setting. 8) The OSD shows ÒOK!Ó. button to memorize setting. 8) The OSD shows ÒOK!Ó. 70IRE 50IRE 5-16 Samsung Electronics...
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6) Adjust the Ò + (DATA UP)/ - (DATA DOWN)Ó button so that the red vector is 104. 7) Be sure to press the ÒSTART/STOP (CONFIRM)Ó button to memorize setting. 8) The OSD shows ÒOK!Ó. RED VECTOR 104 DEG. Samsung Electronics 5-17...
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7) Be sure to press the ÒSTART/STOP (CONFIRM)Ó 7) Be sure to press the ÒSTART/STOP (CONFIRM)Ó button to memorize setting. button to memorize setting. 8) The OSD shows ÒOK!Ó. 8) The OSD shows ÒOK!Ó. YELLOW VECTOR 165 DEG. BLUE VECTOR 346 DEG. 5-18 Samsung Electronics...
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1) VCR ÒPBÓ, Alignment tape (Lion pattern). 2) Viewfinder and VRE03. 3) Adjust the VRE03 so that the 3rd and 4th steps of the lion pattern can be distinguished. 2. V. Size 3. Bright 1. AFC EVF PCB (Component side) Samsung Electronics 5-19...
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CAMERA ADJUSTMENT mode has successfully EPR:XX EVR:XX been activated. Note : When ÒXX XXÓ is shown in service adjustment precedures, this indicates variable values. START/STOP BUTTON EJECT BUTTON DATE EJECT TITLE START/STOP P.AE <The location of RE51> FADE DISPLAY 5-20 Samsung Electronics...
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R SUB R-BRIGHT ADJUST B SUB B-BRIGHT ADJUST GAMMA 1 GAMMA1 GAIN FIXED GAMMA 2 GAMMA2 GAIN FIXED ADJUST MODE1 HD-TIME DELAY FIXED MODE2 SYSTEM SELECTION FIXED MODE3 H-POSITION FIXED Note : ÒXX XXÓ indicates variable values. Samsung Electronics 5-21...
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OSD state is Ò04 R SUB EPR:XX EVR:XXÓ. 5) Adjust the ÒD.ZOOM+/- (DATA UP/DOWN)Ó button so that R-OUT(Red) level is 8.0Vp-p. 6) Be sure to press the ÒDISPLAY(CONFIRM)Ó button to memorize setting. 7) The OSD shows ÒCONFIRM !Ó. 8.0V (RED LEVEL) 5-22 Samsung Electronics...
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5) Adjust the ÒD.ZOOM+/- (DATA UP/DOWN)Ó button so that the Yellow level is equal to the pedestal line. 6) Be sure to press the ÒDISPLAY(CONFIRM)Ó button to memorize setting. 7) The OSD shows ÒCONFIRM !Ó. PEDESTAL LINE YELLOW LEVEL Samsung Electronics 5-23...
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Test point and adjustment points : ADDRESS Adjustment name Test point Adjustment point Spec. 1.8 ± 0.1V DC BRIGHTNESS G-OUT 8.0Vp-p R-SUB BRIGHTNESS R-OUT 8.0Vp-p B-SUB BRIGHTNESS B-OUT 8.0Vp-p COLOR B-OUT B-OUT Test point ADJ. point CVF PCB (Component side) 5-24 Samsung Electronics...
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0:00:00 burst signal and ÒRedÓ signal is 0.30 : 0.66. The video signal ( color bars ) used for VCR block electrical adjustment are shown in figure 1. 0. EMPHA EPR:XX EVR:XX Samsung Electronics 5-25...
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Audio block - See page 5-31 for the location of tests points and adjustments. 2. Press the ÒBLCÓ button of set for mode change. Note 4 : The OSD information. ÒXXÓ means arbitary values. It can be different number depend on the condition. 0. EMPHA EPR:XX EVR:XX Samsung Electronics 5-27...
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6) Be sure to press the ÒDISPLAY (CONFIRM)Ó button so that the TP203 is 4.38 ± 0.02MHz. button on unit to memorize setting. 6) Be sure to press the ÒDISPLAY (CONFIRM)Ó button on unit to memorize setting. 0.5 0.02Vp-p 5-28 Samsung Electronics...
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- When smaller than specified value : press the Ò- (DATA DOWN)Ó and then press the ÒDISPLAY (CONFIRM)Ó button. WHITE ( APPROX. 100% ) APPROX. WHITE ( APPROX. 100% ) 0.7V 1.0 0.05Vp-p APPROX. APPROX. 0.05Vp-p 0.7V 0.3V APPROX. 0.3V Samsung Electronics 5-29...
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0.5 ± 0.02Vp-p Y/C SEPARATION TP202 EVR data fixed Y-FM CARRIER FREQUENCY TP203 4.38 ± 0.02MHz Y-FM DEVIATION TP203 1.0 ± 0.05Vp-p REC Y LEVEL EVR data fixed PB OUTPUT LEVEL TP204 1.0 ± 0.05Vp-p Test point ADJ. point 5-30 Samsung Electronics...
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5) Press the Ò- (DATA DOWN)/ +(DATA UP)Ó button so that the output waveform is completed sine wave and the distortion is miniized. 6) Be sure to Press the ÒDISPLAY(CONFIRM)Ó button on unit to memorize setting. AUDIO OUTPUT DISTORTION MINIMIZE Test point Samsung Electronics 5-31...
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ÒXXÓ is different depend on the models as shown 5) Be sure to press the ÒDISPLAY (CONFIRM)Ó below. button on unit to memorize setting. NTSC - SCA20 : 20 - VP-A20 : 20 - SCA23 : 23 - VP-A22 : 22 - SCA25 : 25 - VP-A23 : 23 5) Be sure to press the ÒDISPLAY (CONFIRM)Ó...
Exploded View and Parts List 6-1 Cabinet Assembly (1) Samsung Electronics...
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Exploded View and Parts List Loc. No New Part No Description and Specification Remark AD98-11250F ASSY-CASE FRONT;SC-A23,- AD63-70068A SHEET-MIC;-,HIMERON,-,-,-,-,-,VP-A20 AD64-30930B CASE-FRONT;-,ABS,94HB,-,-,-,-,VP-A23 SCA23/25 only AD64-30930C CASE-FRONT;-,ABS,94V0,-,-,-,-,SC-A20 SCA20 only AD64-40676A WINDOW-REMOCON;-,PC,-,-,BLK,-,VP-A20 AD67-10191A LENS-HOOD;-,-,PC(BLK),-,-,-,VP-A20 AD90-10830Z ASSY-FRONT BOARD;VP-A20,FRONT(MOD) SCA23/25 only AD98-12024P ASSY-MIC;VP-A20,- AC63-30040A COVER-LI BATTERY;PP,HB,T1.5,BLK,H3.5,-,V AD61-30214A LOCKER-BATT EJECT;-,POM,-,BLK,-,VP-A20...
Exploded View and Parts List 6-3 Cabinet Assembly (3) W501 W502 Samsung Electronics...
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Exploded View and Parts List Loc. No New Part No Description and Specification Remark AD96-10473H ASSY-8MM DECK;DE-6BNN,-” AD90-10829H ASSY-MAIN BOARD;SC-A23,NTSC” SCA23 only AD90-10823S ASSY-MAIN BOARD;SC-A20,NTSC” SCA20 only AD90-10833B ASSY-MAIN BOARD;SC-A25,NTSC” SCA25 only AD61-11036A CHASSIS-BOTTOM;-,STS,-,T0.6,-,-,VP-A20” AD61-11037A CHASSIS-TOP;-,STS,-,T0.6,-,-,VP-A20” AD98-11242F ASSY-CASE TOP;VP-A20,-” AD90-10826L ASSY-LENS;VP-A20/XEU,LENS”...
Important safety notices : Components identified with the mark ! have the special characteristics for safety. When replacing any of these components. Use only the same type. 3 Block Identification of Main PCB (Component Side) (Conductor Side) 11-2 Samsung Electronics...