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Samsung SyncMaster 320TSn-2, Service Manual

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Samsung SyncMaster 320TSn-2 Service Manual Download Page 50

4-10 

4. Troubleshooting 

4-6. No AV Video

Symptom

The LED power turns on but the screen is blank when the AV cable is connected.

-

Major 

checkpoints

Check the AV cable connections.

Check whether the LVDS cable is connected correctly to the panel.

Check whether the lamp connector of the panel is connected correctly to the IP board.

-
-
-

Diagnostics

CN401

IC302

L102

Yes

Check the power port.

No

Does the LED light up when turn on 

the power?

Does the waveform at L102 

⑭

?

Reconnect the cable.

No

Yes

Does the TX** signal appear at Pin 16 

and 17 of CN401?

The scaler (IC302) is 

abnormal. 

Replace the main board.

No

Yes

Check the cable between the main 

board and panel and 

replace the LCD panel.

Caution

Make sure to disconnect the power before working on the IP board.

Summary of Contents for SyncMaster 320TSn-2

Page 1: ...al TFT LCD Monitor Contens 320TSn 2 400TSn 2 460TSn 2 Refer to the service manual in the GSPN see the rear cover for the more information 1 Precautions 2 Product specifications 3 Disassembly and Reass...

Page 2: ...4 4 4 4 No DVI Video 4 6 4 5 No HDMI Video 4 8 4 6 No AV Video 4 10 4 7 O S Problems 4 12 4 8 Faults and Corrective Actions 4 14 4 9 Adjustment 4 15 5 Exploded View Part List 5 1 5 1 Exploded View 320...

Page 3: ...rope samsungportal com China http china samsungportal com Asia http asia samsungportal com Mideast Africa http mea samsungportal com This Service Manual is a property of Samsung Electronics Co Ltd Any...

Page 4: ...except for the provided jig 3 Remove the signal cable and the power cord before beginning the disassembly Description Picture Description Screws 1 Remove 14 screws from the rear cover and lift up the...

Page 5: ...ure and then remove the nine 9 screws marked with red circles 6 Remove the Main board cables 9 screws 7 DDisconnect the five 5 cables on the Main SMPS marked with blue circles in the right figure then...

Page 6: ...gure and remove the bracket 10 Remove the ten 10 screws marked with red circles in the right figure and remove the front from the panel 11 Remove the screws three 3 screws on the top and bottom and tw...

Page 7: ...sembly and Reassemble Description Picture Description Screws 12 Pull up the protection glass and touch screen module from the front cover Reassembly procedures are in the reverse order of disassembly...

Page 8: ...rom the rear cover and lift up the rear cover 2 Disconnect the two 2 cables designated with blue circles in the right figure and then remove the four 4 screws designated with red circles 3 Remove the...

Page 9: ...circles 7 Remove the Main board cables 9 screws 8 DDisconnect the six 6 cables on the Main SMPS marked with blue circles in the right figure then remove the nine 9 screws marked with red circles and...

Page 10: ...from the panel 12 Remove the screws three 3 screws on the top and bottom and two 2 screws on the left and right respectively of the side bracket marked with red circles in the right figure and remove...

Page 11: ...3 8 3 Disassembly and Reassemble Memo...

Page 12: ...5 1 5 Exploded View Part List 5 Exploded View Part List 5 1 LH40TCUMBG XF Exploded View T0003 M0020 T0213 M0215 T0152 M0146 BN63 04726A M0125 M0013 T0066 M0014 M0174 T0909 T0762...

Page 13: ...NEL SIDE 400MX SECC 1 2 38 508 2 SNA M0174 BN44 00228B IP BOARD SIP40LFD B 40 Montblanc 2 0 3 1 SA M0215 BN07 00721A LCD PANEL LTI400HA04 SSMZAW 8bit 40 0inc 1 SA T0003 BN96 08888C ASSY COVER P FRONT...

Page 14: ...2 SCREW MACHINE FH M3 L6 NI PLT SWRCH18A 16 SNA 3 W392 6003 000282 SCREW TAPTYPE BH B M3 L8 ZPC BLK SW 10 SA 3 BN61 03119A GUIDE CONTROL BEETHOVEN PLUS 40 HIPS T2 1 SNA 3 T0010 BN61 04585A HOLDER FRON...

Page 15: ...9 SCREW TAPTYPE BH S M4 L8 ZPC WHT SWRC 1 SNA 2 M0081 6006 001096 SCREW TAPTYPE BH WP B M4 0 L12 ZPC BLK 4 SNA 2 6011 001445 BOLT SOCKET 4 40 UNC L7 NI PLT BRASS HEX 2 SNA 2 M2893 BN39 00618J LEAD CON...

Page 16: ...N81 03960A A S WAFER RJAK02230 1 SNA 4 BN81 03961A A S WAFER RJAQ00011 1 SNA 4 BN81 03975A A S RTV SE9590 FAAB00091 1 764 SNA 4 BN81 03976A A S SOLDER WIRE FBAB00094 2 625 SNA 4 BN81 03977A A S SOLDER...

Page 17: ...47A A S C EL LXZ QEAA08446 2 SNA 5 BN81 04048A A S C EL LXZ QEAA08693 2 SNA 5 BN81 04055A A S C EL NLA QEAA09149 2 SNA 5 T0510 BN97 03870F ASSY SMD MAIN LH40MGQLBCMZD IP BOARD 1 SNA 6 BN81 03715A AS R...

Page 18: ...BN81 03786A AS R CHIP QAAG06005 3 SNA 6 BN81 03787A AS R CHIP QAAG06152 1 SNA 6 BN81 03789A AS R CHIP QAAG06871 1 SNA 6 BN81 03790A AS R CHIP QAAG06905 1 SNA 6 BN81 03791A AS R CHIP QAAG07322 2 SNA 6...

Page 19: ...6 BN81 04030A A S C CRM QCAD02511 1 SNA 2 T0762 BN44 00230A SMPS LCD MONITOR SUB PN098STS VF POWER P 1 SA 2 M0146 BN61 04258A BRACKET PANEL SIDE 400MX SECC 1 2 38 508 2 SNA 2 AC304 BN63 04726A COVER S...

Page 20: ...BN96 08981A ASSY COVER P GRILLE LH32 40 46MG BKM5703 1 SNA 5 BN61 04327A BRACKET GRILLE 400CXn 400MX SECC 1 0 290 1 SNA 5 T0524 BN63 04801A COVER GRILLE MONTBLANC 40 SECC T0 5 W30 1 SNA 4 BN61 02430D...

Page 21: ...2P NI WHT RED ANGLE 2 SA 3 3722 002575 JACK EAR PHONE 5P 2C SnPb SKY BLUE ANGLE 1 SNA 3 3722 002744 JACK DC POWER 7P 3C 6 7PI Sn BLACK 1 SA 3 W391 6003 000275 SCREW TAPTYPE BH B M3 L10 ZPC BLK SWR 2 S...

Page 22: ...TOR 30Vdc 5A 1 6x0 8x0 8mm TP 9 SA 4 SR51 2007 000040 R CHIP 150ohm 1 1 10W TP 1608 1 SNA 4 DR1 2007 000043 R CHIP 1Kohm 1 1 10W TP 1608 4 SA 4 PR4 2007 000052 R CHIP 10Kohm 1 1 10W TP 1608 2 SNA 4 ND...

Page 23: ...1 000881 R NETWORK 33ohm 5 1 16W L CHIP 8P TP 3 4 SA 4 RN22 2011 001001 R NETWORK 0ohm 5 1 16W L CHIP 8P TP 3 2 4 SA 4 C24 2203 000041 C CER CHIP 0 01nF 0 25pF 50V C0G 1608 1 SNA 4 AC1 2203 000125 C C...

Page 24: ...F100100 DC5V 1mA 10 1 SA 4 T0077 BN41 01052G PCB MAIN Montblanc FR 4 4 1 0 1 6 160 14 1 SNA 4 BN97 03266G ASSY MICOM MAIN M MG40MWWAF 3005 0 2009 1 SNA 5 ZIC3 1107 001709 IC FLASH MEMORY MX25L1605DM2I...

Page 25: ...T0527 BN68 00513A LABEL E PASS ALL MODEL YUPO 110G 50X15 1 SNA 3 BN68 00992B MANUAL FLYER QSG MONTBLANC Mojo 80g 148 1 SNA 3 BN68 01782C MANUAL FLYER QSG 460TSN 400TSN WW Mojo 8 1 SNA 3 BN68 01789A M...

Page 26: ...04 001307 DIODE SCHOTTKY SSC54 20V 5000mA DO 214AB 1 SA 4 0406 001181 DIODE TVS NUP4201MR6 6 V 500W TSOP 6 5 SA 4 PQ02 0501 002080 TR SMALL SIGNAL 2SC2412K NPN 200mW SC 59 13 SA 4 CEQ2 0505 000110 FET...

Page 27: ...2007 000093 R CHIP 20Kohm 5 1 10W TP 1608 1 SNA 4 MR16 2007 000098 R CHIP 56Kohm 5 1 10W TP 1608 1 SNA 4 ARR2 2007 000102 R CHIP 100Kohm 5 1 10W TP 1608 4 SA 4 R309 2007 000105 R CHIP 200Kohm 5 1 10W...

Page 28: ...5 1 16W TP 1005 2 SNA 4 R307 2007 007226 R CHIP 49 9ohm 1 1 10W TP 1608 2 SA 4 2007 007306 R CHIP 100ohm 1 1 16W TP 1005 2 SNA 4 MR601 2007 007307 R CHIP 150ohm 1 1 16W TP 1005 4 SNA 4 2007 007318 R...

Page 29: ...7R 1005 16 SNA 4 DC108 2203 005005 C CER CHIP 100nF 10 16V X7R 1608 2 SC 4 AAC1 2203 005249 C CER CHIP 100nF 10 50V X7R TP 1608 11 SNA 4 AD480 2203 005344 C CER CHIP 22nF 10 25V X7R TP 1005 1 SNA 4 AD...

Page 30: ...m 1 SNA 4 3711 000456 HEADER BOARD TO CABLE BOX 4P 1R 1 25mm S 2 SA 4 3711 000862 HEADER BOARD TO CABLE BOX 3P 1R 1 25MM S 1 SA 4 3711 005083 HEADER BOARD TO CABLE BOX 31P 2R 0 625mm 1 SA 4 T0010 BN27...

Page 31: ...nal Standards Institute ANSI C101 1 Leakage Current for Appliances and Underwriters Laboratories UL Publication UL1410 59 7 With the unit completely reassembled plug the AC line cord directly into a 1...

Page 32: ...rument s ground lead last 1 3 Static Electricity Precautions Some semiconductor solid state devices can be easily damaged by static electricity Such components are commonly called Electrostatically Se...

Page 33: ...m being exposed to moisture Otherwise it may cause a fire or electric shock Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product Also check the an...

Page 34: ...1 4 1 Precautions Memo...

Page 35: ...510mm H X 0 510mm W mm pixel pitch TFT LCD panel RGB vertical stripe normally black transmissive 40 Inch viewable 0 461mm H X 0 461mm W mm pixel pitch TFT LCD panel RGB vertical stripe normally black...

Page 36: ...311mm Without stand 973 2 x 584 4 x 128 1mm With stand 973 2 x 645 4 x 311mm Without stand 1104 2 x 658 4 x 134 3 mm With stand 1104 2 x 720 x 311mm Weight Set Package Set 19 5kg Package 23 4kg Set 28...

Page 37: ...1920x1080 SPVA Spec 32 400cd m2 4000 1 8ms 40 400cd m2 4000 1 8ms 46 400cd m2 4000 1 8ms 500cd m 1000 1 178 178 10ms Input PC D Sub DVI D D Sub DVI D Video CVBS HDMI TV Feature Speaker 32 5Watt x 2Ch...

Page 38: ...o Remark Quick Setup Guide BN69 01605B Samsung Electronics Service center Warranty Card Not available in all locations BH68 00633B Natural Color MDC MagicNet Software User s Manual BN59 00747A Power C...

Page 39: ...2 5 2 Product specifications 2 4 Accessories Sold separately Product Description Code No Remark DVI Cable BN39 00246F Samsung Electronics Service center Wall Mount KIT WMN 5770D LAN Cable BH39 00211A...

Page 40: ...2 6 2 Product specifications Memo...

Page 41: ...no picture appears make sure the power cord is correctly connected Check the following circuits No raster appears Function PBA Main PBA I P PBA 55V develop but no screen Main PBA 5V does not develop...

Page 42: ...d Check the Main board power part and check also whether there is any abnormal output at other output terminals Diagnostics CN601 BD605 C602 C636 C640 C628 Yes No Does 5 3 V appear at Pin 4 of CN601 D...

Page 43: ...4 3 4 Troubleshooting 4 2 1 Waveform...

Page 44: ...input and scaler operation Diagnostics CN401 C603 IC302 CN101 YES Check the power port No Does the LED light up when turn on the power Does 5V appear at Pin 10 of CN101 D Sub Check the cable connectio...

Page 45: ...4 5 4 Troubleshooting 4 3 1 Waveform...

Page 46: ...15 R131 R132 Yes Check the power port No Does the LED light up when turn on the power Does 5V appear at Pin 19 of CN101 DVI port Check the cable connection No Yes Does the wave form as the figure appe...

Page 47: ...4 7 4 Troubleshooting 4 4 1 Waveform...

Page 48: ...r button and check the LED No Does the LED light up when turn on the power Does 5V appear at Pin 19 of C201 DVI port Reconnect the BNC cable No Yes Does the signal appear at R214 SCL_ HD and 215 SDA_H...

Page 49: ...4 9 4 Troubleshooting 4 5 1 Waveform...

Page 50: ...or of the panel is connected correctly to the IP board Diagnostics CN401 IC302 L102 Yes Check the power port No Does the LED light up when turn on the power Does the waveform at L102 Reconnect the cab...

Page 51: ...4 11 4 Troubleshooting 4 6 1 Waveform...

Page 52: ...ostics Bios IC FDM Yes Replace SUB SMPS No If Monitor is turned on at the MagicInfo Is DC 5V appear Pin 2 Stand by 5V at CN6 If Monitor is turned on at the MagicInfo Does the samsung logo appear Check...

Page 53: ...4 13 4 Troubleshooting 4 7 1 Screens to Check 16...

Page 54: ...ing Manual for information on inputting the DVI DDC Symptoms When the monitor is turned on only a full white pattern is displayed continually regardless of the signals Causes This fault occurs when on...

Page 55: ...0 Adjusts color automatically Adjusts color with the R G B offset and gain Adjusts screen quality and clearness Applies the spread spectrum Resets to the factory default The serial number four digits...

Page 56: ...128 128 128 ON OFF SERVICE MENU AUTO COLOR WHITE BALANCE MST9788CLD PDP LOGIC AUDIO YC DELAY OPTION SPREAD SPECTRUM RESET CHECKSUM M MG32MWWAC 0904 0 SERVICE MENU AUTO COLOR WHITE BALANCE MST9788CLD P...

Page 57: ...H2 GAIN H3 GAIN H4 GAIN V1 GAIN V2 GAIN D1 GAIN D2 GAIN OVER SHOOT2 OVER SHOOT3 UNDER SHOOT2 UNDER SHOOT3 BS START BS SLOPE 0 128 Adjusts color with the gain and offset for each video source Adjusts t...

Page 58: ...T9788CLD PDP LOGIC AUDIO YC DELAY OPTION SPREAD SPECTRUM RESET CHECKSUM M MG32MWWAC 0904 0 Sets the audio delay Adjusts the synchronization of video and voice for each video source SERVICE MENU AUTO C...

Page 59: ...OT OPTIMUM MODE PC CABLE DETECT CHECK STATUS HDMI DELAY DVI DELAY PDP LOGIC DOWNLOAD FAN ON OFF LONG CABLE FAN CONTROL 10 TEMPERATURE CONTROL 85 CURRENT TEMPERATUER 45 115200 ENABLE ON ON ON 9 9 OFF O...

Page 60: ...computer and Monitor The DDC input is available after entering the Service Mode Cancel the DDC Protection 1 Open the file 2 Select Port 1 D SUB Select Port 2 DVI Select Port 3 HDMI 3 Select the DDC fi...

Page 61: ...4 21 4 Troubleshooting 5 Input the monitor serial number and press Enter Input Analog and repeat 2 5 times when input Digital 5...

Page 62: ...the ZIG device for code updating using a USB cable To complete the installation click Next and Continue The program is available separately When your Windows OS displays the message Found New Hardware...

Page 63: ...ck Read and select the Main code you want to update 3 Click Run to download the code When the download is completed normally and the success message PASS is displayed turn the power on Check the check...

Page 64: ...n Check if there are DIMM memory and Battery Touch Screen Calibration 1 Run IrTouch Screen Control Panel in the windows wallpaper of MagicInfo source 2 Click calibrate button when the calibration wind...

Page 65: ...6 1 6 Wiring Diagram 6 Wiring Diagram 6 1 Wiring Diagram Main...

Page 66: ...6 2 6 Wiring Diagram 6 2 Wiring Diagram Network...

Page 67: ...6 3 6 Wiring Diagram 6 3 Wiring Diagram Photo Main Board Power Connect Function LVDS Connect FAN Connect LVDS Connect Network Connect DTV Connect DC 5V...

Page 68: ...6 4 6 Wiring Diagram 6 4 Wiring Diagram SMPS Board SMPS 32 Lamp ctrl Conn 7Pin Power connector Connect to the Main board Lamp wire Power connector Connect to the AC socket Power GND...

Page 69: ...6 5 6 Wiring Diagram 6 5 Wiring Diagram SMPS Board SMPS 40 Power connector Connect to the Main board Power connector Connect to the Sub SMPS Power connector Connect to the AC socket Lamp wire...

Page 70: ...6 6 6 Wiring Diagram 6 6 Wiring Diagram Sub SMPS Power connector Connect to the network board Power Connect 110 220V...

Page 71: ...6 7 6 Wiring Diagram 6 7 Wiring Diagram Network Board Power cable Connect to the Sub SMPS D Sub Out LVDS Connect to the Main board LAN USB 3EA USB Connect to the Touch Screen Module FDM...

Page 72: ...6 8 6 Wiring Diagram 6 8 Wiring Diagram...

Page 73: ...6 9 6 Wiring Diagram...

Page 74: ...ot displayed Transmits the signals to control the power and speed of fan 1 In case of a problem The CHECK COOLING SYSTEM OSD is displayed Use Sub SMPS to Network Board Power Cable Speaker extension ca...

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