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Troubleshooting
Related Manuals for Samsung PS42E7SX
Summary of Contents for Samsung PS42E7SX
- Page 1 PDP-TELEVISION Chassis : D74A(P_Europe_42SD)_Audi Model : PS42E7SX/XEC SERVICE Manual PDP-TELEVISION FEATURES DTV Ready PDP TV ■ ■ ■ Supreme Picture Quality Supreme Convenience Quality RF, HDMI, PC(Analog), ■ ■ 2 Component, 2 Video, S-Video ■ Slim line design Energy Saving ■...
- Page 2 © Samsung Electronics Co., Ltd. Apr. 2006 This Service Manual is a property of Samsung Electronics Co.,Ltd. Printed in Korea Any unauthorized use of Manual can be punished under applicable AA82-03734A International and/or domestic law.
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Page 3: Table Of Contents
■ 5-1 PS42E7SX/XEC Service Item ........ -
Page 4: Table Of Contents
Chapter 9 PCB Diagram ■ 9-1 Main Board ..............9-1 ■... -
Page 5: Overall Block Diagram
: Voltage for address pulse - Vs : Voltage for sustain pulse - Vsc : Voltage for scan pulse - Ve : Voltage for X ramp pulse - Vset : Voltage for Y ramp pulse Image Scaler + Video Decoder Micom Samsung Electronics... - Page 6 Signal Pin No. Signal Pin No. Signal Pin No. Signal 6.5V 5.3V STBY D5.3V VS_ON PS_ON 18Vamp Vset 18Vamp 5.3V RTN_amp Vscan RTN_amp PS_ON 5.3V STBY 5.3V D5.3V FAN_ON FAN_D CN6(DC-DC SMPS) ↔ CN2509(E-Buffer) Pin No. Signal D5.3V Samsung Electronics...
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Page 7: Partial Block Diagram
Vs Input Part Vscan Output Rectification Transformer Block Auxiliary Control Power Feedback Switching Block Block Vset Output Rectification Transformer Block Auxiliary Control Power Feedback Switching Block Block Ve Output Rectification Transformer Block Auxiliary Control Power Feedback Switching Block Block Samsung Electronics... - Page 8 Block Diagram 7-2-3 Module Driver Board Block Diagram 1. Y Drive Board 2. X Drive Board Samsung Electronics...
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Page 9: Power Block Diagram
DATA : 32bit ADDR : 12bit DRIVE DQS, CLK, nCLK nRESET R,G,B : 24bit R,G,B : 24bit CLK 1, 2 CLK 1, 2 BLK, POC, STB BLK, POC, STB 60 Pin Connector FM75 60 Pin Connector 7-2-5 Power Block Diagram Samsung Electronics... - Page 10 MEMO Samsung Electronics...
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Page 11: Overall Wiring
⑩ ASSY BOARD P-POWER&IR BN96-02050D Twister,CT5000-3530A,POWER & IR,Core,No LED Holder ⑪ ASSY SPEAKER P BN96-02785A 8ohm,Twister,42inch,10W ⑫ ASSY BOARD P-SIDE AV BN96-03075A AUDI,SJ05-01-430,Side A/V,42E7, With Bracket Shield ⑬ ASSY BOARD P-FUNCTION BN96-02784A TWISTER,CT5000-3850A,FUNCTION,42V6,With Knob ⑭ FILTER-EMI AC LINE 2901-001374 250V,6A,UL/SA/VDE,0.15uF/1000pF,50x22.5x37.2mm,BK,AE Samsung Electronics... -
Page 12: Partial Wiring
↔ ↔ CN3(DC-DC SMPS) CN5007(Y B'D) CN4001(X B'D) CN2509(E-Buffer) CN2013(Logic B'D) Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal D5.3V D5.3V STD_5V VS_ON D5.3V PS_ON Vset D5.3V Vscan D5.3V D5.3V D5.3V Samsung Electronics... - Page 13 8-2-2 Connect Cables ※ The code number of cable(Lead-connector) can be changed, see "5 Chapter. Electrical Part List." SMPS 12P LVDS 31P POWER 10P Code BN39-00632B BN39-00667D BN39-00675A Photo POWER 12P EMI ONEPOINT WIRE Code BN39-00676A BN39-00164E Photo Samsung Electronics...
- Page 14 MEMO Samsung Electronics...
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Page 15: Main Board
IC MICOM advanced instruction manipulation capabilities to process complex instructions by less bytes and execute instructions at higher speed. ③ FBE IC DNIe Image enhancement IC ④ TCPS3001PD32S(H) TUNER Tuner CH Tuning ⑤ STA323W IC AUDIO-AMP Audio power amplifiers Samsung Electronics... - Page 16 Signal Pin No. Signal CN102(Main Board) CN108(Main Board) TXOUT2+ TXOUT0B- Pin No. Signal Pin No. Signal TXOUT0B+ 5.3V 6.5V TXOUT- TXOUT+ TXOUTCLK- TXCLKOUT+ SCL_G 18Vamp TXOUT- SDA_G 18Vamp TXOUT+ TXOUT3- RTN_amp TXOUT3+ PS_ON RTN_amp TXOUT2- STBY FAN_ON FAN_D Samsung Electronics...
- Page 17 PCB Diagram ④ ⑤ ⑥ CN740(Main Board) CN501(Main Board) CN741(Main Board) ↔ ↔ ↔ CN001(Power Button) Speaker Out CN1(Function Board) Pin No. Signal Pin No. Signal Pin No. Signal SPK_R+ KEY_INPUT1 SPK_R- KEY_INPUT2 SPK_L+ ST5V SPK_L- KEY_INPUT2 IR_7414 Samsung Electronics...
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Page 18: Power & Ir Board
9-3 Function Board Function Key. Located on the side of the unit. 9-4 Side AV Board Loc. No. Description CN102 S-VIDEO2 Input Jack ① CN103 AV2 Input Jack ② CN104 Earphone Jack ③ CN105 Side AV Connector ④ Samsung Electronics... -
Page 19: Main Smps Board
Signal Pin No. Signal Pin No. Signal Pin No. Signal 6.5V 5.3V STBY 5.3V VS_ON PS_ON 18Vamp 18Vamp 5.3V RTN_amp RTN_amp PS_ON 5.3V STBY 5.3V FAN_ON FAN_D ※ CN811, CN804-2 and CN805, CN806, CN807, CN808 are not used. Samsung Electronics... -
Page 20: Dc-Dc Smps Board
④ CN2(DC-DC SMPS) CN4(DC-DC SMPS) CN5(DC-DC SMPS) CN3(DC-DC SMPS) ↔ ↔ ↔ ↔ CN809(Main SMPS) CN5010(Y B'D) CN4004(X B'D) CN2710(F-Buffer) Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal D5.3V D5.3V Vset Vscan D5.3V D5.3V Samsung Electronics... -
Page 21: Pdp Module
Y Drive Board ③ ASSY PDP MODULE P-Y MAIN SCAN BUFFER BN96-03103A Y Buffer Board ④ ASSY PDP MODULE P-ADDRESS E BUFFER BN96-03104A Address Buffer Board ⑤ ASSY PDP MODULE P-ADDRESS F BUFFER BN96-03105A Address Buffer Board ⑥ Samsung Electronics... - Page 22 MEMO Samsung Electronics...
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Page 23: Analog
Schematic Diagram 10. Schematic Diagram 10-1 Analog 10-1-1 POWER This Document can not be used without Samsung’s authorization. Power Signal Samsung Electronics 10-1... - Page 24 Schematic Diagram 10-1-2 MICOM This Document can not be used without Samsung’s authorization. Power MICOM Signal > - > - ( I - Samsung Electronics 10-2...
- Page 25 Schematic Diagram 10-1-3 IN_OUT_JACK This Document can not be used without Samsung’s authorization. Power Signal Samsung Electronics 10-3...
- Page 26 Schematic Diagram 10-1-4 HDMI This Document can not be used without Samsung’s authorization. Power Signal HDMI_INPUT 10-4 Samsung Electronics...
- Page 27 Schematic Diagram 10-1-5 SOUND This Document can not be used without Samsung’s authorization. Power SOUND Signal Samsung Electronics 10-5...
- Page 28 Schematic Diagram 10-1-6 SVP-PX This Document can not be used without Samsung’s authorization. Power Signal 10-6 Samsung Electronics...
- Page 29 Schematic Diagram 10-1-7 TUNER 10-1-9 FBE_Option This Document can not be used without Samsung’s authorization. This Document can not be used without Samsung’s authorization. Power Power Signal Signal 10-1-8 FUNCTION This Document can not be used without Samsung’s authorization. Power...
- Page 30 Schematic Diagram 10-1-10 FRC This Document can not be used without Samsung’s authorization. 10-8 Samsung Electronics...
- Page 31 Schematic Diagram 10-1-11 FRC Memory This Document can not be used without Samsung’s authorization. Samsung Electronics 10-9...
- Page 32 Schematic Diagram 10-1-12 LVDS This Document can not be used without Samsung’s authorization. Power Signal 10-10 Samsung Electronics...
- Page 33 Schematic Diagram 10-1-13 DTV / TUNER / POWER This Document can not be used without Samsung’s authorization. Samsung Electronics 10-11...
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Page 34: Product Features And Functions
- You can connect a set of headphones to your television if you wish to watch a television programme without disturbing the other people in the room. Prolonged use of headphones at a high volume may damage your hearing. Samsung Electronics 11-1... -
Page 35: Rear Panel
These inputs can also be used as a DVI connection with HDMI/DVI 60Hz separate analog audio inputs. An optional HDMI/DVI cable Component will be necessary to make this connection. When using the optional HDMI/DVI adapter, the DVI analog audio inputs on 11-2 Samsung Electronics... -
Page 36: Remote Control
Fastext topic selection Previous channel The performance of the remote control may be affected by bright light. This is a special remote control for the visually impaired, and has Braille points on the Power, Channel and Volume buttons. Samsung Electronics 11-3... -
Page 37: Installation Notes And Precautions
11-2-1 Installation Notes 1. Contact a technician for installing the wall bracket. 2. Samsung Electronics is not responsible for any damages to the product or harm to customers when the installation is done by the customer. 3. This product is for installing on cement walls. The product may not stay in place when installed on plaster or wood. - Page 38 ( ) and hook ( ) down to secure the PDP on the wall mount as illustrated. Secure the PDP by inserting the Safety Pins, not to fall from the wall mount. PDP panel Wall attachment Wall panel bracket Samsung Electronics 11-5...
- Page 39 Remove the Safety Pins to adjust the angle to 0°, and then secure the Safety Pins again. For safety, be sure to secure the PDP using the safety pins. If the safety pins are not used, the PDP may fall, causing serious injury. 11-6 Samsung Electronics...
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Page 40: Service Instruction
3-1 Service Instruction ■ Before Performing After Sales Services 1. Check if the measurement and test equipment is working properly. 2. Secure sufficient work space for disassembling the product. 3. Prepare a soft pad for disassembling the product. Samsung Electronics... -
Page 41: How To Access Service Mode
※ The version of the firmware displayed at the bottom of the screen may differ and the firmware is subject to change for the improvement of product functions. ※ If you have adjusted the settings in Service Mode, you have to reset the product. Samsung Electronics... -
Page 42: Factory Data
T-AUD42PEUHS-XXXX (Sub Micom Ver) EnergySave : OFF Month / Day / Year / Hour / Min. / Sec. LBE/FBE : ON FRC-Micronas : OFF FRC-Samsung : OFF : OFF Carrier Mute : ON Language : English Auto FM : ON... - Page 43 Analog PR Gain FEH 9AH 80H FEH Black Level 00H 00H 00H SVP Brightness 00H 00H 00H Calibration Target : high delta AV ADC F8H 04H COMP ADC F8H 04H PC ADC F8H 04H ALL RGB F8H 10H Samsung Electronics...
- Page 44 : 55H Ch2 Volume : 55H AGC Gain : 07H AM Prescale : 00H ZWT TH : 0AH AV Delay : 55H Comp Delay : 32H HDMI Delay : 32H PC Delay : 32H L1 Att/Rel Th : EFH Samsung Electronics...
- Page 45 Movie Color : 50 Movie Sharpness : 40 LNA PLUS : RFDB-1 Level RFDB-2 Level RFDB-3 Level RFDB-4 Level Hotel Option : Hotel Mode PWR On CH PWR On Vol. Max Volume L.Key Lock PWR On Src 9. ----- Samsung Electronics...
- Page 46 W2 B Offset T-AUD42PEAS-XXXX (Main Micom Ver) Movie Contrast T-AUD42PEUHS-XXXX (Sub Micom Ver) Movie Brightness 50 Month / Day / Year / Hour / Min. / Sec. Movie Color Movie Sharpness 25 11. Checksum 12. Reset 13. ----- Samsung Electronics...
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Page 47: Service Adjustment
2) Select "AV CALIBRATION" again in CALIBRAION MENU. 3) After Completing Calibration, come out "Av success". OSD on the screen (bottom-side) for about 3 seconds. Source AV : PAL composite, Component : 1280*720/60Hz PC : 1024*768/60Hz ( Chess Pattern ) Samsung Electronics... - Page 48 H/L : 270/280 +/- 2 L/L : 270/280 +/- 3, 2.1 Ft +/-0.05 Ft ( SAMSUNG WHITE BALANCE Adjustment PATTERN with FPD ) 3-4-3 Conditions for Measurement 1. On the basis of toshiba ABL pattern : High Light level (57 IRE)
- Page 49 - Adjust red offset ('x') and blue offset ('y') to the color coordinates. Low light Measurement point ( SAMSUNG WHITE BALANCE Adjustment PATTERN with FPD ) * Do not adjust green offset data. d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode) - Adjust red gain ('x') and blue gain ('y') to the color coordinates.
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Page 50: Software Upgrade
1. Installthe Flash Downloader Connect Set (Service Jack) and Jig Cable to execute Program Update. 2. Flash Downloader program update - Before Turning on the set, Click "connect" which is under of OSD Screen. - Turn on the Set. Samsung Electronics 3-11... -
Page 51: Replacements & Calibration
ASSY PDP P-ADDRESS E BUFF BOARD BN96-03104A ASSY PDP P-ADDRESS F BUFF BOARD BN96-03105A ※ When replacing the SMPS (DC DC) or PDP panel, you have to check the voltage printed on the panel sticker and adjust it. 3-12 Samsung Electronics... - Page 52 (If you do not adjust the voltage, an abnormal discharge symptom may appear.) Value Board Adjustment SMPS-MAIN Vset SMPS-DC/DC Vscan -190 Voltage Label SMPS-MAIN SMPS-DC/DC 2. A point of adjusting SMPS-MAIN voltage. Vs Adjustment Vs Test point Va Test point Va Adjustment Samsung Electronics 3-13...
- Page 53 Alignment & Adjustment 3. A point of adjusting SMPS-DC/DC. Test Point Vset (Middle) Vscan (Right) Vscan/Vset Adjustment Point Adjustment Point Ve Test Point * Use base chassis of PDP panel as GND point. 3-14 Samsung Electronics...
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Page 54: Safety Precautions
When Check the AC power cord for possible damages. Keep voltage exceeds the specified limits, check each special the part or the lead away from any heat-emitting part. materials. Samsung Electronics... - Page 55 Critical safety parts should be bracketed with ( Use only regular parts for replacements (in particular, flame resistance and dielectric strength specifications). Irregular parts or materials may cause electric shock or fire. Samsung Electronics...
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Page 56: Servicing Precautions
AC source and turn the switch on. Connect the insu- lating resistance meter (500v) to the AC plug blade. The insulating resistance between the blade of the AC plug and that of the conductive material should be more than 1 ㏁. Samsung Electronics... -
Page 57: Static Electricity Precautions
These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Samsung Electronics... -
Page 58: Installation Precautions
5. Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause fire or electric shock. Samsung Electronics... - Page 59 MEMO Samsung Electronics...
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Page 60: Power On/Off Signal Timing Sequence
4. If the VS_ON signal from the Logic Board changes from Low to High, the Main SMPS supplies VS power to the X and Y Main Board through the DC-DC SMPS, and the screen displays a picture on it. Samsung Electronics 13-1... -
Page 61: Partial Block Description
No single point fault shall be able to cause a sustained over voltage condition on any of all outputs. The supply shall provide latch-mode Over Voltage Protection as defined below. Parameter Unit VS(210V) 250 ~ VA(70V) 100 ~ VCC(+5.3V) 6.8 ~ 13-2 Samsung Electronics... - Page 62 Section 3 above. Current Protection as defined below. Output Over Current Limit Unit VS(210V) 20A, Constant Current.(TBD) VA(70V) 10A, Constant Current.(TBD) Output except Vs,Va No damage (Auto Recovery or Shut down.) Samsung Electronics 13-3...
- Page 63 The LED that shows whether the Sync and Clock signal is properly supplied to the logic ⑬ Operating Status LED board. (Normal Status: Blinks at 0.5 second intervals) ⑭ Buffer Connector The connector to output the address data and the control signal to the F-buffer board. ⑮ V-TOGG V-SYNC output pin. 13-4 Samsung Electronics...
- Page 64 If a short circuit is found and it is repairable, repair it. If a short circuit is internal, replace the board. ▶ The following waveform appears when the V-sync and address data are output properly. < Normal V-SYNC Output Waveform > < Normal Address Data Output Waveform > Samsung Electronics 13-5...
- Page 65 In addition, a weak discharge is introduced, because the applied voltage is low. 13-6 Samsung Electronics...
- Page 66 This is connected to the Y port part of the panel. It outputs 1) Sustain voltage wave form (including ERC), and 2) Y Rising, Falling Ramp waveform, and maintains 3) Vscan bias. 3) Y Buffer Board A board, which applies the Scan waveform to the Y terminal block, consists of 12 Scan Driver ICs (TI SN755870: 64 Outputs). Samsung Electronics 13-7...
- Page 67 By floating the Odd line that caused the Sustain Discharge in the IDS section to the Vscan-h level, and introducing the Sustain Discharge only for Even lines, it compensates for the optical output difference between the Even and Odd lines. 6) CMS Pulse (ComMon Sustain Pulse) Actual optical is output during the common Sustain Discharge section. 13-8 Samsung Electronics...
- Page 68 FET2 short circuits, GND is output via the output terminal. 2) When a signal is applied to G1, FET1 short cir cuits and when no signal is applied to G2, FET2 is opened, and 180V is output via the output terminal. Samsung Electronics 13-9...
- Page 69 Circuit Description ■ Drive Board Connector Layout 1) X-Main Board 1.Vs CN4001 2.Vs 3.DGND CN4004 4.DGND - Power 5.Ve 6.DGND 7.DGND 8.Vcc X-FPC 240mm Connector CN4000 CN4003 15 Pin - Signal Connector 140mm 13-10 Samsung Electronics...
- Page 70 CN5000 Panel CN5403 CN5005 CN5010 9. Vs 8. Vs 7. GND 6. GND 5. Vset 4. GND 3. Vscan 2. GND CN5402 1. Vcc Panel 280mm CN5400 CN5003 CN5503 Panel CN5001- signal CN5404 CN5004 CN5502 174mm Panel Samsung Electronics 13-11...
- Page 71 ▶ Adjust the drive waveform so that the main reset (rising, falling:40usec) is the same as those in the F/W pattern. (※ Attachment 1 reference) 120usec 70usec Rising ramp Variable register Falling ramp Variable register < Y-Main > <Voltage Adjustment Specifications> Vset Vsc_l Vsc_h 201V 207V -190V -120V 110V 13-12 Samsung Electronics...
- Page 72 Circuit Description ▶ Check that the output of X-Out of the X board follows the waveform of ※Attachment 2 when the power is supplied. X-OUT Samsung Electronics 13-13...
- Page 73 Circuit Description ※ Attachment 1 ■ Y Output Waveform Rising Ramp < Rising Ramp > < Falling Ramp > Falling Ramp 13-14 Samsung Electronics...
- Page 74 Circuit Description Scan_l < Even_Scan > < Y Sustain > Samsung Electronics 13-15...
- Page 75 Circuit Description ※ Attachment 2 ■ X Output Waveform < X Sustain > 13-16 Samsung Electronics...
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Page 76: Product Features
Sound Sound AMP STA323W ST Microelectronics Audio S/W MM74HC4052 PDP Module Samsung SDI V5 42" SD SAMSUNG SDI Remocon TM86 Cabinet ■ Chip Description - SVP-PX (IC611) : SVPTMPX contains dual-purposed triple 10-bit high-precision and high speed video ADCs for both PC and... -
Page 77: Key Features
- Picture Enhancement : FBE - Still picture, Noise reduction - Comb Filter : 3D comb filter - PIP : Large - Panorama : Wide ■ Sound - System : Stereo - Output : 10W + 10W - Speaker : built-in Samsung Electronics... - Page 78 ▶ The television might operate abnormally if a non-standard video format is selected. ▶ 480i/p, 576i/p, 720p, or 1080i is not available in PC mode. ▶ The PC text quality is optimum in WVGA mode (848 x 480@60Hz). Samsung Electronics...
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Page 79: Specifications Analysis
Color Weakness Energy Saving Screen Burn Protection Antenna 1 Input 1Input CVBS 2 AV S-Video 1 Input 1 Input Component(Y/PB/PR) 2 Input 1 Input PC(D-SUB) 1 Input 1 Input Connections HDMI 1 Input 1 Input Sub Woofer Optical Coaxial Samsung Electronics... -
Page 80: Accessories
2-4 Accessories Accessories Item Item code Remark User Manual BN68-00989T Remote Control BN59-00531A AAA Batteries 4301-000103 Samsung Service center Power Cord 3903-000145 Core Ferrite 3301-001110 S-VIDEO Cable HDMI Cable HDMI/DVI cable Component Cables (RCA) Internal shopping mall PC Cable PC Audio Cable... - Page 81 MEMO Samsung Electronics...
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Page 82: Other Issues Related To Other Products
SVP-XXL6HD have a size adjustment feature to 16:9, 4:3, Panorama, Zoom1, Zoom2 and Auto device: Wide. This is about the aspect ratio of the top and bottom boundaries to the overall screen and users can select their preference. Samsung Electronics 14-1... - Page 83 Ex: For LCD 15:9 devices, "Wide" is displayed on the OSD instead of "16:9". 4. The picture size can be changed even in the blue screen. However, the picture size should be controlled by the product specifications if the change is impossible due to hardware restrictions. 14-2 Samsung Electronics...
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Page 84: Technical Terms
While the aspect ratio of a normal TV is 4：3, that of a wide a single channel only. screen is 16：9. Through a mono interface, it is hard to experience stereophonic sound and the sound is played using only one speaker. Samsung Electronics 14-3... - Page 85 This refers to a screen that corrects the picture distortion due to a screen size mismatch on the TV. Progressive Scan Progressive scan displays the entire frame in a single sweep so as to provide clearer and sharper visual quality. 14-4 Samsung Electronics...
- Page 86 Therefore, if someone says that a 5000:1 contrast displays a color by 5000 levels, he is confusing Contrast with Gradation. Brightness Brightness is the brightness per unit screen area, the unit for brightness is candela (cd). For example, 1000cd/m2 means the brightness that is measured when 1000 candles are lit within 1 square meters area. Samsung Electronics 14-5...
- Page 87 The Color reproductivity of a TV is a certain % of NTSC. This means the TV displays that particular % of the color coordinate area of the NTSC signal broadcast by the broadcasting station. In general, a CRT TV provides the highest functional color reproductivity. 14-6 Samsung Electronics...
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Page 88: Ps42E7Sx/Xec
Electrical Part List 5. Electrical Part List 5-1 PS42E7SX/XEC Service Item You can search for the updated part code through ITSELF web site. URL:http://itself.sec.samsung.co.kr Loc. No. Code No. Description Specification Q'ty SA/SNA Remark M0003 BN96-02746B ASSY STAND P-SET RIGHT 42E7,HIPS HB,GRAY... - Page 89 MEMO Samsung Electronics...
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Page 90: First Checklist For Troubleshooting
- Check to see if the cables are connected according to the connection diagram. 2. Check the power input to the Main Board. 3. Check the voltage in and out between the SMPS ↔ Main Board, between the SMPS ↔ X, Y Main Board, and between the Logic Boards. Samsung Electronics... -
Page 91: Checkpoints By Error Mode
Is the Fuse (F801S) of the Main SMPS Replace Fuse (F801S) Power Input Part blown? Main SMPS CN804-1 Pin 3 : STB 5V Replace the Main SMPS Pin 8 PS-ON : Check to see if it is 0V Replace the Main Board Samsung Electronics... - Page 92 SMPS, CN of the X Main Board, and CN of the Y Main Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after separating the power cord from the unit. Samsung Electronics...
- Page 93 SMPS, CN of the X Main Board, and CN of the Y Main Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after separ ating the power cord from the unit. Samsung Electronics...
- Page 94 Main Board and the speaker replace the cable, if necessary. properly connected? Is the output voltage of SMPS Replace the Main SMPS normal? (CN803 #5) Is the speaker output terminal Replace the Main Board of the Main Board normal? Replace the Speaker Samsung Electronics...
- Page 95 - Check the tuner output signal (CVBS). - Check the power input of the Main board. Troubleshooting Procedures Is the antenna connection setting Configure properly properly configured? Check CN101 pin2 for +33V Replace the Main SMPS Replace the Main Board Samsung Electronics...
- Page 96 Check the U101, D108 STD_5V Normal Abnormal Check the U201, Q203, Q204 Normal Abnormal Check the U501 Abnormal Check the U601 Multi Normal Abnormal Check the Q401, Q402 Normal Check the Other board (Main Board or Driver Board) or Cable. Samsung Electronics...
- Page 97 Some horizontal lines appear to be linked on screen Scan Buffer, FPC of X/Y Address Open Some vertical lines don't exist on screen Logic Main, Logic Buffer, TCP Address Short Some vertical lines appear to be linked on screen Logic Main, Logic Buffer, TCP Samsung Electronics...
- Page 98 Replace the Board FUSE Replace the Board F5002 for Vs F4003 for Vs Q5008 Q4010 SHORT SHORT FET/ FET/ Q5009 Q4011 Replace the Board Replace the Board Q5010 DIODE DIODE Q4012 Q5013 Q4015 Y-MAIN X-MAIN Normal State Normal State Samsung Electronics...
- Page 99 F5001 for VDD FUSE Replace the Board FUSE Replace the Board F4003 for Vs F5002 for Vs Q4010 Q5008 SHORT SHORT Q4011 Q5009 Replace the Board Replace the Board Q4012 Q5010 Q4015 Q5013 Y-MAIN X-MAIN Normal State Normal State 6-10 Samsung Electronics...
- Page 100 ④ Sustain Short (some horizontal lines appear to be linked on Video) [ Y-FPC ] Sustain Short (Discharging in unwanted Scan line) After Changing Y-buffer, Replace the Panel recheck the status There a defect on FPC Done (Defect is from Y-buffer) Samsung Electronics 6-11...
- Page 101 Buffer Board and the Logic Main address data output section. Check the FFC connection status Check the detailed waveform Replace Logic Main / and control the signal waveform Address Buffer (E or F) / DONE Replace the Panel 6-12 Samsung Electronics...
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Page 102: Troubleshooting Procedures By Ass'y
11 ASSY BOARD P-POWER&IR BN96-02050D Power Button Board The remote control does not work properly, the LED does not work properly. 12 ASSY BOARD P-SIDE AV BN96-03075A Side AV Board The AV2 and S-VIDEO2 modes do not work properly Samsung Electronics 6-13... - Page 103 MEMO 6-14 Samsung Electronics...
- Page 104 Exploded View & Part List 4. Exploded View & Part List 4-1 PS42E7SX/XEC You can search for the updated part code through ITSELF web site. URL:http://itself.sec.samsung.co.kr Loc. No. Code No. Description Specification Q'ty SA/SNA Remark FT532 2901-001374 FILTER-EMI AC LINE 250V,6A,UL/SA/VDE,0.1...