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TFT-LCD MONITOR
CN15V*
SERVICE
TFT-LCD MONITOR
AUTO EXIT MENU
Manual
CONTENTS
1. Precautions 2. Product Specifications 3. Disassembly & Reassembly 4. Troubleshooting 5. Exploded View & Parts List 6. Electrical Parts List 7. Block Diagram 8. Wiring Diagram
CN15VS
AUTO
EXIT
MENU
9. Schematic Diagrams 10. Panel Description
CN15VO
1 Precautions
Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such as electrical shock.
1-1 Safety Precautions
1-1-1 Warnings
1. 2. 3. For continued safety, do not attempt to modify the circuit board. Disconnect the AC power and DC Power Jack before servicing. When the chassis is operating, semiconductor heatsinks are potential shock hazards.
DEVICE UNDER TEST TEST ALL EXPOSED METAL SURFACES (READING SHOULD NOT BE ABOVE 0.5mA)
LEAKAGE CURRENT TESTER
1-1-2 Servicing the LCD Monitor
1. When servicing the LCD Monitor, remove the static charge by connecting a 10k ohm resistor in series with an insulated wire (such as a test probe) between the chassis and the anode lead. (Disconnect the AC line cord from the AC outlet.) It is essential that service technicians have an accurate voltage meter available at all times. Check the calibration of this meter periodically.
2-WIRE CORD
ALSO TEST WITH PLUG REVERSED (USING AC ADAPTER PLUG AS REQUIRED)
EARTH GROUND
2.
Figure 1-1. Leakage Current Test Circuit
4. With the unit completely reassembled, plug the AC line cord directly into a 120V AC outlet. With the unit's AC switch first in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit, etc.) and all exposed metal parts, including: metal cabinets, screwheads and control shafts. The current measured should not exceed 0.5 milliamp. Reverse the power-plug prongs in the AC outlet and repeat the test.
1-1-3 Fire and Shock Hazard
Before returning the monitor to the user, perform the following safety checks: 1. Inspect each lead dress to make certain that the leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the monitor. Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators, etc. Leakage Current Hot Check (Figure 1-1): WARNING: Do not use an isolation transformer during this test. Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7).
2.
1-1-4 Product Safety Notices
Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual inspection. The protection they give may not be obtained by replacing them with components rated for higher voltage, wattage, etc. Parts that have special safety characteristics are identified by ! on schematics and parts lists. A substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fire and / or other hazards. Product safety is under review continuously and new instructions are issued whenever appropriate.
3.
CN15V*
1-1
2 Product Specifications
2-1 Specifications
Item LCD Panel Scanning Frequency Display Colors Maximum Resolution Input Video Signal Input Sync Signal Description TFT-LCD panel, RGB vertical stripe, normaly white, 15-Inch viewable, 0.297 (H) x 0.297 (V) pixel pitch Horizontal : 30 kHz ~ 61 kHz (Referring to Timing chart, Page 2-3, 2-4) Vertical : 50 Hz ~ 75 Hz (Referring to Timing chart, Page 2-3, 2-4) 16,003,008 colors Horizontal : 1024 Pixels Vertical : 768 Pixels
Analog, 0.714 Vp-p ± 5% positive at 75 , internally terminated Type: Seperate H/V sync, Composite H/V, Sync-on-Green, automatic synchronization without external switch of sync type Level: TTL level 80 MHz 304.1 mm / 228.1 mm AC 90 ~ 264 Volts, 60/50 Hz ~ 12V/3A 25 W (normal)
Maximum Pixel Clock rate Active Display Horizontal/Vertical AC power voltage & Frequency Power Consumption Dimensions / Unit Weight / incl.Carton Unit (W x D x H) with: Standard base MultiMedia base Pivot MM base Angle Pivot base Wire-frame base Carton (W x D x H) Environmental Considerations
385.4 x 364.7 x 173 mm / 5.20kg / 8.4kg 385.4 x 406.2 x 179 mm / 5.95kg / 9.6kg 385.4 x 406.2 x 179 mm / 5.95kg / 9.6kg 385.4 x 431.6 x 179.9 mm / 6.6kg / 9.8kg 385.4 x 339.2 x 79.7 mm / 4.4kg / 7.6kg 500 x 260 x 457 mm Operating Temperature : 50 °F ~ 104 °F (10 °C ~ 40 °C) Humidity : 10 % ~ 80 % Storage Temperature : 13 °F ~ 113 °F (-25 °C ~ 45 °C) Humidity : 5 % ~ 95 % · Built-in Microphone: High-sensitivity condenser microphone (mono) · Audio input: Left/Right Stereo phone jack, 0.5 Vrms · Sound output: 1.0 W (left) + 1.0 W (right)/THD 1% at 8ohm · Frequency response: 80 Hz~20 kHz (at 3dB) · Headphone: Max 50mW output (3.5-pi jack) · Speaker: Internal semi Dome (16ohm x 2)
Audio Characteristics
·CN15V* complies with SWEDAC (MPR II) recommendations for reduced electromagnetic fields. ·Designs and specifications are subject to change without prior notice.
CN15V*
2-1
3 Disassembly and Reassembly
This section of the service manual describes the disassembly and reassembly procedures for the CN15V* monitor. WARNING: This monitor contains electrostatically sensitive devices. Use with caution when handling these components.
3-1 Disassembly
Cautions:1. Disconnect the monitor from the power source before disassembly. 2. Follow these directions carefully; never use metal instruments to pry apart the cabinet.
3-1-1 Removing the Stand
1. Remove 4 screws in the hinge area. 2. Pry it off the back of the monitor. 3. Disconnect Power Cord and Signal Cable.
3. Remove Stand Front from the Stand assembly. 4. Remove 2 screws from the Stand assembly. 5. Remove the Stand Rear from the Stand assembly. 6. Remove 5 screws on the Vesa Brkt from the Stand assembly. 7. Remove cover hinge from the Stand assembly. 8. Remove Stand Base from the Stand assembly.
3-1-2 Main Body Disassembly
1. Remove 4 screws on the four corner of the Rear Cover. 2. Remove Rear Cover from the Front Cover. 3. Remove 11 screws on the Shield and remove the shield. 4. Disconnect Inverter wire, Function PCB wire and Interface wire. Remove 4 screws on the Main PCB and remove 2 screws on the D sub shield. 5. Remove the Main PCB Assembly. 6. Remove 6 screws on the Inverter PCB Assembly and then remove it 7. Remove 6 screws on the Rear Panel Bracket. 8. Remove the Bracket Assembly from the Front Cover. 9. Remove 3 screws on the Function PCB from locking area of Function knob and remove Function PCB. 10. Remove 4 screws on the Shield of Panel. 11. Remove the Shield. 12. Remove Rear Bracket from Panel. 13. Remove 2 screws between Panel Rear and Inverter PCB. 14. Remove the Interface wire on the Rear Side of Panel.
3-1-4 Pivot Multi-media Stand Disassembly (option)
1. Stand the stand assembly with the base close to you. 2. Remove 4 screws on the back cover of the stand and remove it. 3. Stand the stand assembly upside down. 4. Remove 4 screws. 5. Disconnect CN805, CN806, CN807, CN808, CN809, CN812 and F1. 6. Remove the Back Cover of the Stand Front assembly. 7. Remove 4 screws on the external adaptor and remove the adaptor. 8. Remove 2 screws between hinge and Stand Body. 9. Remove the hinge. 10. Remove 2 screws on Audio main PCB and remove it. 11. Remove 2 screws on the Audio Function PCB and remove it.
3-1-5 Angle Pivot Stand Disassembly (option)
1. Remove the cap pivot from the stand assembly. 2. Remove 4 screws on the hinge assembly. 3. Remove 4 screws on the Stand Rear.
3-1-3 Standard Stand Disassembly
1. Remove 5 screws from the Stand Rear 2. Remove 4 screws from the Stand Bottom.
CN15V*
3-1
4 Troubleshooting
Notes: 1. Before troubleshooting, setup the PC's display as below. · Resolution: 1024 x 768 · H-frequency: 48 kHz · V-frequency: 60 Hz 2. If no picture appears, make sure the power cord is correctly connected. 3. Check the following circuits. · No raster appears: Audio PCB, SMPS PCB, Main PCB · 12V develop but no screen: Main PCB · 12V does not develop: Audio PCB, SMPS PCB 4. If you push and hold the "EXIT" button for more than 5 seconds, the monitor automatically turns back to the factory preset.
4-1 No Power
Does proper DC 12 V appear at DC jack connected to CN101? Yes Does proper DC 3.3 V appear at Pin 4 of IC104? Yes Check IC101 and IC103.
No Check SMPS or CN809.
No
Check IC104.
CN15V*
4-1
5 Exploded View and Parts List 5-1 Simple Base
20
CN15V*
5-1
6 Electrical Parts List
6-1 Main PCB Parts
Loc. No. CIS CIS CIS CN101 CN102 IC301 BD181 BD182 BD183 BD201 BD205 BD206 BD301 BD302 BD303 BD304 C101 C102 C103 C104 C105 C106 C109 C110 C111 C112 C131 C132 C133 C134 C135 C136 C137 C138 C139 C140 C141 C142 C143 C144 C145 C146 C147 C148 C149 C150 C151 C152 C153 C154 C155 C156 C157 C159 C160 C161 C162 C163 C164 C165 C166 Code No. 3704-001071 BN70-00018A BN46-00007M 3722-000117 3701-001160 0903-001194 2703-001334 2703-001334 2703-001334 2703-001334 2703-001334 2703-001334 2703-001334 2703-001334 2703-001334 2703-001334 2402-000170 2402-000168 2203-000257 2402-000168 2203-000257 2402-000170 2203-000257 2203-005005 2402-000168 2409-001029 2203-000257 2203-000257 2203-000257 2203-000257 2203-000257 2203-000257 2203-005005 2203-005005 2402-000108 2402-000108 2203-005005 2402-000108 2203-005005 2203-005005 2203-005005 2203-005005 2203-005005 2203-005005 2402-000108 2203-005005 2203-005005 2203-005005 2203-005005 2203-005005 2203-005005 2203-005005 2402-000108 2203-005005 2203-005005 2203-005005 2203-005005 2203-005005 2203-005005 2402-000108 2203-000280 Description SOCKET-IC SHIELD-D/SUB MICOM-S/W,NILL(L01) JACK-DC POWER CONNECTOR-DSUB IC-MICROCONTROLLER INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD INDUCTOR-SMD C-AL,SMD C-AL,SMD C-CERAMIC,CHIP C-AL,SMD C-CERAMIC,CHIP C-AL,SMD C-CERAMIC,CHIP C-CERAMIC,CHIP C-AL,SMD C-ORGANIC C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-AL,SMD C-AL,SMD C-CERAMIC,CHIP C-AL,SMD C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-AL,SMD C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-AL,SMD C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-AL,SMD C-CERAMIC,CHIP Specification 42P,DIP,SN,1.778mm RN15AS,SPTE,0.5,-,NILL(L01),-,-,-,-,-,3P,3.5mm,AG,BLK,NO 15P,3R,FEMALE,ANGLE,AU15U 3P863,8Bit,SDIP,42P,600MIL,12MHz,ST,CMOS,PLASTIC,5V,-,-40to+85C,1040BYTE,48KBYTE 1.5uH,10%,2x1.25x0.85mm 1.5uH,10%,2x1.25x0.85mm 1.5uH,10%,2x1.25x0.85mm 1.5uH,10%,2x1.25x0.85mm 1.5uH,10%,2x1.25x0.85mm 1.5uH,10%,2x1.25x0.85mm 1.5uH,10%,2x1.25x0.85mm 1.5uH,10%,2x1.25x0.85mm 1.5uH,10%,2x1.25x0.85mm 1.5uH,10%,2x1.25x0.85mm 1uF,20%,50V,GP,TP,4.3x4.3x5.4, 100uF,20%,16V,GP,TP,8.3x8.3x6.3mm 10nF,10%,50V,X7R,TP,1608 100uF,20%,16V,GP,TP,8.3x8.3x6.3mm 10nF,10%,50V,X7R,TP,1608 1uF,20%,50V,GP,TP,4.3x4.3x5.4, 10nF,10%,50V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100uF,20%,16V,GP,TP,8.3x8.3x6.3mm 120uF,20%,6.3V,WT,TP,10.3x10.3x10.3mm,9 10nF,10%,50V,X7R,TP,1608 10nF,10%,50V,X7R,TP,1608 10nF,10%,50V,X7R,TP,1608 10nF,10%,50V,X7R,TP,1608 10nF,10%,50V,X7R,TP,1608 10nF,10%,50V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 10uF,20%,16V,WT,TP,4.3x4.3x5.4 10uF,20%,16V,WT,TP,4.3x4.3x5.4 100nF,10%,16V,X7R,TP,1608 10uF,20%,16V,WT,TP,4.3x4.3x5.4 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 10uF,20%,16V,WT,TP,4.3x4.3x5.4 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 10uF,20%,16V,WT,TP,4.3x4.3x5.4 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 10uF,20%,16V,WT,TP,4.3x4.3x5.4 0.01nF,0.5pF,50V,NP0,TP,1608 Remarks SNA SNA SNA SNA
CN15V*
6-1
7 Block Diagram
CN15V*
7-1
8 Wiring Diagram
20~19 18~17 16~15 14
13~12 11
10~9
8
7~6
5
4~3
2
1
CN15V*
8-1
9 Schematic Diagrams
9-1 Power Scaler Part Schematic diagram
+3.3V_S
1 IC105 #44
3
PC_VSYNC_IN PC_HSYNC_IN
+3.3V_S
+3.3V_S
CH1 RMS= 1.780V
2 IC105 #43
HDATA1 HDATA2 HCLK HDATA3 RESETn HDATA0 HFS PC_RED_IN
5
PC_GREEN_IN PC_BLUE_IN
CH1 RMS= 4.060V
3 IC105 #150
2 1
+3.3V_S
CH1 RMS= 3.428V
5 IC105 #46,47,55,56,63,64
CH1 RMS= 2.2V
CN15V*
9-1
9 Schematic Diagrams
9-2 LVDS Part Schematic diagram
4 CN201 #3, 16
4
CH1 RMS= 1.214V
9-2
CN15V*
9 Schematic Diagrams
9-3 Micom Part Schematic diagram
+12V_IN
VCC
CN15V*
9-3
9 Schematic Diagrams
Memo
9-4
CN15V*
8 Wiring Diagram
Memo
8-2
CN15V*
7 Block Diagrams
Memo
7-2
CN15V*
6 Electrical Parts List
Loc. No. C167 C168 C169 C170 C171 C172 C173 C211 C215 C216 C217 C223 C227 C228 C229 C230 C232 C301 C302 C303 C304 C311 C312 C371 C372 C373 C374 C375 CIS CL102 CN201 CN301 CN302 D101 D131 D132 D133 D301 D302 FT101 FT110 FT111 FT112 FT113 FT114 FT115 FT116 IC102 IC104 IC105 IC251 IC371 IC372 Q102 Q103 Q311 Q312 R102 R104 R105 R106
Code No. 2203-000626 2203-000236 2203-000236 2203-000384 2203-000384 2203-000384 2203-000280 2402-000108 2402-000108 2402-000108 2402-000108 2203-005005 2203-005005 2203-005005 2203-005005 2203-005005 2203-005005 2402-000108 2203-000257 2203-000257 2203-000257 2203-000626 2203-000626 2402-000108 2203-005005 2402-000108 2203-000257 2203-000236 BN41-00069A BN27-20001A 3711-003161 3711-000556 3711-002049 0402-000553 0401-001056 0401-001056 0401-001056 0401-001056 0401-001056 3301-001145 3301-001145 3301-001145 3301-001145 3301-001145 3301-001145 3301-001145 3301-001145 1203-001488 1203-001447 1003-001377 1205-001740 1103-001023 1103-001164 0501-002080 0501-002080 0501-002080 0501-002080 2007-000090 2007-000102 2007-000102 2007-000102
Description C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-AL,SMD C-AL,SMD C-AL,SMD C-AL,SMD C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-AL,SMD C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-CERAMIC,CHIP C-AL,SMD C-CERAMIC,CHIP C-AL,SMD C-CERAMIC,CHIP C-CERAMIC,CHIP PCB MAIN COIL-CHOKE CONNECTOR-HEADER CONNECTOR-HEADER CONNECTOR-HEADER DIODE-RECTIFIER DIODE-SWITCHING DIODE-SWITCHING DIODE-SWITCHING DIODE-SWITCHING DIODE-SWITCHING CORE-FERRITE BEAD CORE-FERRITE BEAD CORE-FERRITE BEAD CORE-FERRITE BEAD CORE-FERRITE BEAD CORE-FERRITE BEAD CORE-FERRITE BEAD CORE-FERRITE BEAD IC-POSI.FIXED REG. IC-POSI.FIXED REG. IC-LCD CONTROLLER IC-TRANSMITTER IC-EEPROM IC-EEPROM TR-SMALL SIGNAL TR-SMALL SIGNAL TR-SMALL SIGNAL TR-SMALL SIGNAL R-CHIP R-CHIP R-CHIP R-CHIP
Specification 0.022nF,5%,50V,NP0,TP,1608 0.1nF,5%,50V,NP0,TP,1608 0.1nF,5%,50V,NP0,TP,1608 0.015nF,5%,50V,NP0,TP,1608 0.015nF,5%,50V,NP0,TP,1608 0.015nF,5%,50V,NP0,TP,1608 0.01nF,0.5pF,50V,NP0,TP,1608 10uF,20%,16V,WT,TP,4.3x4.3x5.4 10uF,20%,16V,WT,TP,4.3x4.3x5.4 10uF,20%,16V,WT,TP,4.3x4.3x5.4 10uF,20%,16V,WT,TP,4.3x4.3x5.4 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 100nF,10%,16V,X7R,TP,1608 10uF,20%,16V,WT,TP,4.3x4.3x5.4 10nF,10%,50V,X7R,TP,1608 10nF,10%,50V,X7R,TP,1608 10nF,10%,50V,X7R,TP,1608 0.022nF,5%,50V,NP0,TP,1608 0.022nF,5%,50V,NP0,TP,1608 10uF,20%,16V,WT,TP,4.3x4.3x5.4 100nF,10%,16V,X7R,TP,1608 10uF,20%,16V,WT,TP,4.3x4.3x5.4 10nF,10%,50V,X7R,TP,1608 0.1nF,5%,50V,NP0,TP,1608 CEZANNE-II,FR-4 ,4,-,1.6T,117.0*172.4*1.6,CN,-,-,BOX,20P,1R,1.25mm,ANGLE,SN BOX,12P,1R,1.25mm,SMD-A,SN BOX,6P,1R,1.25mm,SMD-A,SN SS24,40V,2.0A,DO-214AA MMBD4148SE,75V,600mA,SOT-23,TP MMBD4148SE,75V,600mA,SOT-23,TP MMBD4148SE,75V,600mA,SOT-23,TP MMBD4148SE,75V,600mA,SOT-23,TP MMBD4148SE,75V,600mA,SOT-23,TP AB,4.5x1.6x1.6mm,-,AB,4.5x1.6x1.6mm,-,AB,4.5x1.6x1.6mm,-,AB,4.5x1.6x1.6mm,-,AB,4.5x1.6x1.6mm,-,AB,4.5x1.6x1.6mm,-,AB,4.5x1.6x1.6mm,-,AB,4.5x1.6x1.6mm,-,7805,T0-252,3P,-,PLASTIC,4.8/5 2596,TO-263,5P,-,PLASTIC,3.135 GMZAN1,QFP,160P,1102MIL,SINGLE,-,TR,PLASTIC,3.47V,0TO+70C,1.8W,-,LCD CONTROLLER DS90C385,TSSOP,56P,240MIL,PLASTIC,4V,1.63W,-10 TO +70C,ST,FPD LINK-85MHZ(LVDS) 524C80D81,1028x8Bit,SOP,8P,150MIL,10mS,5V,10%,PLASTIC,0to+70C,110uA,CMOS,TP 24LC21A,128X8BIT,SOP,8P,150MIL,-,5V,10%,PLASTIC,0 TO +70C,100UA,CMOS,TP 2SC2412K,NPN,200mW,SC-59,TP,120-270 2SC2412K,NPN,200mW,SC-59,TP,120-270 2SC2412K,NPN,200mW,SC-59,TP,120-270 2SC2412K,NPN,200mW,SC-59,TP,120-270 10Kohm,5%,1/16W,DA,TP,1608 100Kohm,5%,1/16W,DA,TP,1608 100Kohm,5%,1/16W,DA,TP,1608 100Kohm,5%,1/16W,DA,TP,1608
Remarks
SNA SNA SNA
SNA SNA SNA SNA SNA SNA SNA SNA
6-2
CN15V*
6 Electrical Parts List
Loc. No. R107 R108 R113 R114 R115 R117 R118 R119 R120 R121 R122 R123 R124 R125 R301 R314 R316 R317 R320 R321 R322 R323 R324 R325 R326 R327 R329 R330 R335 R336 R337 R338 R339 R340 R341 R343 R344 R345 R346 R348 R349 R350 R351 R362 R364 R371 R372 R373 R374 R375 R376 R377 R901 R902 R903 R904 R905 R910 R911 R912
Code No. 2007-000090 2007-000084 2007-001167 2007-000074 2007-001167 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-001167 2007-001167 2007-001167 2007-000078 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000109 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000084 2007-000084 2007-000084 2007-000084 2007-000084 2007-000084 2007-000084 2007-000078 2007-000075 2007-000077 2007-000120 2007-000090 2007-000090 2007-000074 2007-000074 2007-000092 2007-000092 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000074 2007-000078 2007-000078 2007-000078 2007-000078
Description R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP 10Kohm,5%,1/16W,DA,TP,1608 4.7Kohm,5%,1/16W,DA,TP,1608 75ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 75ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 75ohm,5%,1/16W,DA,TP,1608 75ohm,5%,1/16W,DA,TP,1608 75ohm,5%,1/16W,DA,TP,1608 1Kohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 1Mohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 4.7Kohm,5%,1/16W,DA,TP,1608 4.7Kohm,5%,1/16W,DA,TP,1608 4.7Kohm,5%,1/16W,DA,TP,1608 4.7Kohm,5%,1/16W,DA,TP,1608 4.7Kohm,5%,1/16W,DA,TP,1608 4.7Kohm,5%,1/16W,DA,TP,1608 4.7Kohm,5%,1/16W,DA,TP,1608 1Kohm,5%,1/16W,DA,TP,1608 220ohm,5%,1/16W,DA,TP,1608 470ohm,5%,1/16W,DA,TP,1608 680ohm,5%,1/16W,DA,TP,1608 10Kohm,5%,1/16W,DA,TP,1608 10Kohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 15Kohm,5%,1/16W,DA,TP,1608 15Kohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 100ohm,5%,1/16W,DA,TP,1608 1Kohm,5%,1/16W,DA,TP,1608 1Kohm,5%,1/16W,DA,TP,1608 1Kohm,5%,1/16W,DA,TP,1608 1Kohm,5%,1/16W,DA,TP,1608
Specification
Remarks
CN15V*
6-3
6 Electrical Parts List
Loc. No. R913 R973 R974 R975 R976 RA130 RA131 RA132 RA133 RA134 RA136 RA137 X100 X311 ZD181 ZD182 ZD183 ZD184 ZD185
Code No. 2007-000078 2007-000075 2007-000120 2007-000090 2007-000090 2011-000002 2011-000002 2011-000002 2011-000002 2011-000002 2011-000002 2011-000002 2801-003755 2801-003773 0403-000579 0403-000579 0403-000579 0403-000579 0403-000579
Description R-CHIP R-CHIP R-CHIP R-CHIP R-CHIP R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK R-NETWORK CRYSTAL-SMD CRYSTAL-SMD DIODE-ZENER DIODE-ZENER DIODE-ZENER DIODE-ZENER DIODE-ZENER
Specification 1Kohm,5%,1/16W,DA,TP,1608 220ohm,5%,1/16W,DA,TP,1608 680ohm,5%,1/16W,DA,TP,1608 10Kohm,5%,1/16W,DA,TP,1608 10Kohm,5%,1/16W,DA,TP,1608 22ohm,5%,63mW,L,CHIP,8P,TP 22ohm,5%,63mW,L,CHIP,8P,TP 22ohm,5%,63mW,L,CHIP,8P,TP 22ohm,5%,63mW,L,CHIP,8P,TP 22ohm,5%,63mW,L,CHIP,8P,TP 22ohm,5%,63mW,L,CHIP,8P,TP 22ohm,5%,63mW,L,CHIP,8P,TP 20MHZ,30PPM,28-AAN,20PF,50OHM,TP 12MHZ,30PPM,28-AAN,20PF,50OHM,TP BZX84C5V1,5.1V,5%,200mW,SOT-23 BZX84C5V1,5.1V,5%,200mW,SOT-23 BZX84C5V1,5.1V,5%,200mW,SOT-23 BZX84C5V1,5.1V,5%,200mW,SOT-23 BZX84C5V1,5.1V,5%,200mW,SOT-23
Remarks
6-2 Others
Loc. No. CIS CIS CIS CIS CN201+PAN CN301+INV CIS Code No. BN39-00030A BN44-00048A BN41-00069A BH39-10007A BN39-00083A BN39-00002A BN41-00069A Description CBF-SIGNAL INVERTER PCB MAIN CBF POWER CORD CBF-HARNESS CBF-HARNESS PCB MAIN Specification DETACHABLE,1830MM,15P/15P,-,2990,D-SUB-MALE CS15MO,SIC251SF,47Khz,11.5~12.5V,1.5mArms,7.0mArms,-,121*30.5*14.0,2LAMP,-,1.4-2 CEZANNE-II,FR-4 ,4,-,1.6T,117.0*172.4*1.6,CN,-,-,DET,250V/6A,H05VV-F,LP-34A/KKP 20P,140MM,-,UL1571,AWG30,DF14-20S-1.25C -,60,BLU/WHT,-,26,CEZANNE-II,FR-4 ,4,-,1.6T,117.0*172.4*1.6,CN,-,-,Remarks
6-4
CN15V*
5 Exploded View & Parts List
5-2 Multi Media Base
5-2
CN15V*
5 Exploded View & Parts List
5-3 Pivot-MultiMedia Base
CN15V*
5-3
5 Exploded View & Parts List
5-4 Angle-Pivot Base
5-4
CN15V*
5 Exploded View & Parts List
5-5 Wire-Frame Base
20
CN15V*
5-5
5 Exploded View & Parts List
Memo
5-6
CN15V*
4 Troubleshooting
4-2 No Video
Power indicator is green
1
Does the clock pulse appear at Pin 44 of IC105?
No
3
Does the H-sync pulse appear at Pin 150 of IC105? Yes
No
Check CN102.
Yes
Replace IC105.
2
Do the sync pulses appear at Pin 43 of IC105? Yes
4
No
Replace IC105 or check its related circuit.
Do the waveforms appeaer at Pin 3 and 16 of CN201? Yes Replace LCD Panel
No
Replace IC251 or check its related circuit.
WAVEFORMS
1 IC105 #44 2 IC105 #43 3 IC105 #150 4 CN201 #3, 16
CH1 RMS= 1.780V
CH1 RMS= 4.060V
CH1 RMS= 3.428V
CH1 RMS= 1.214V
4-2
CN15V*
4 Troubleshooting
4-3 User Controls Don't Work
Does the DC level change at Pin 35 and 36 of IC311 when you push the front panel button? Yes Refer to 4-4 No OSD Display. No Check the buttons. (SW801~SW808)
4-4 No OSD
There is video but no OSD.
5
While pushing a front control button does any pulse appear at Pin 46,47 and 55, 56 and 63,64 of IC105? Yes Replace IC105.
No
1
3
2
No
5 IC105 #46,47,55,56,63,64
Do sync signals appear at Pin 44, 150 and 43 of IC105? Yes Replace IC105 or check its related circuit.
CH1 RMS= 2.2V
Replace IC251 and IC252.
Replace IC105 or check its related circuit.
Replace CN251.
4-5 No SOUND
Does the DC 12V appear at Pin 2 of IC801 and Pin 6 of CN801? Yes Does the sound input signal appear at Pin 6 and 7 of IC801? Yes Does the sound signals appear at Pin 1 and 3 of IC801? Yes Check CN805 and CN806 outputs. No No Check Pin 1 and 3 of CN801 and related circuits. No Check IC801, VR803 and related circuit.
Check IC801 related circuits.
CN15V*
4-3
4 Troubleshooting
4-6 Microphones Don't Work
No
Does the PC's sound program operate well? Yes Is the connection between the PC and monitor secure? Yes Is the Internal Microphone connector attached? Yes Does the Internal Microphone work? Yes Does the External Microphone work? Yes
Check the PC's sound program and compatibility.
No
Connect the cable between the PC and monitor.
No
Check the connection between CN808 on the Audio PCB and the Internal Microphone.
No
Check Q801 and related circuits.
No
Check the CN803 jack.
OK
4-7 Headphones Don't Work
Can you hear any sound from the Headphones? Yes
No
Check CN802 on the Audio PCB and related circuit D805, D806, R811, and R812.
OK
4-4
CN15V*
3 Disassembly and Reassembly 4. Remove the Stand Rear from the Stand assembly. 5. Remove the Stand Front from the Stand assembly. 6. Remove the Neck Rear from the Stand assembly. 7. Remove 4 Rubbers on the four corner of the Stand Bottom and 4 screws on the four corner of the Stand Bottom.
3-1-6 Wire frame stand Disassembly (option)
1. Carefully pull the cover hinge. 2. Remove the cover vesa from the Stand assembly. 3. Remove 4 screws on the assembly Bracket assembly.
8. Remove 5 stopper hings from the Bracket Bottom. 9. Remove the Stand Base from the Stand Assembly.
3-2 Replacement Order of Lamp Assemblies (CN15VS/CN15VO : Samsung Panel) (CN15VS/CN15VO : TORISAN Panel)
1. After confirm there is nothing on the disk Turn the LCD module over and put it on a flat desk set to the ground.
2. Push down the stopper and slide the lamp unit.
3-2
CN15V*
3 Disassembly and Reassembly
3. Please take out the lamp unit from the LCD module.
4. Please fix the new lamp units on the LCD module : opposite process 2 and 3
*
Replacement of lamp unit should be done at the power off state and recommanded clean bench condition.
3-3 Reassembly
Reassembly procedures are in the reverse order of Disassembly procedures.
CN15V*
3-3
3 Disassembly and Reassembly
Memo
3-4
CN15V*
2 Product Specifications
2-2 Pin Assignments
Sync Type Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Separate Red Green Blue GND GND (DDC Return) GND-R GND-G GND-B No Connection GND-Sync./Self Test GND DDC Data H-Sync. V-Sync. DDC Clock 15-Pin Signal Cable Connector Composite Red Green Blue GND GND (DDC Return) GND-R GND-G GND-B No Connection GND-Sync./Self Test GND DDC Data H/V-Sync. Not Used DDC Clock Sync-on-green Red Green + H/V Sync. Blue GND GND (DDC Return) GND-R GND-G GND-B Not Used GND-Sync./Self Test GND DDC Data Not Used Not Used DDC Clock
2-2
CN15V*
2 Product Specifications
2-3 Timing Chart
This section of the service manual describes the timing that the computer industry recognizes as standard for computer-generated video signals. Table 2-1. Timing Chart Mode
VGA1/70 Hz
IBM
VGA2/70 Hz 720 x 400 VGA3/60 Hz 640 x 480 640/72 Hz 640 x 480 640/75 Hz 640 x 480
VESA
800/56 Hz 800 x 600 800/60 Hz 800 x 600
Timing fH (kHz) A µsec B µsec C µsec D µsec E µsec fV (Hz) O msec P msec Q msec R msec S msec Clock Frequency (MHz) Polarity H.Sync V.Sync Remark
640 x 350
31.469 31.778 3.813 1.589 26.058 0.318 70.086 14.268 0.064 1.716 11.504 0.985 25.175
31.469 31.777 3.813 1.589 26.058 0.318 70.087 14.268 0.064 0.858 13.155 0.191 28.322
31.469 31.778 3.813 1.589 26.058 0.318 59.940 16.683 0.064 0.794 15.761 0.064 25.175
37.861 26.413 1.270 3.810 20.825 0.508 72.809 13.735 0.079 0.528 13.100 0.026 31.500
37.500 26.667 2.032 3.810 20.317 0.508 75.000 13.333 0.080 0.427 12.800 0.027 31.500
35.156 28.444 2.000 3.556 22.222 0.667 56.250 17.778 0.057 0.626 17.067 0.028 36.000
37.879 26.400 3.200 2.200 20.000 1.000 60.317 16.579 0.106 0.607 15.840 0.026 40.000
Positive Negative Separate
Negative Positive Separate
Negative Negative Separate
Negative Negative Separate
Negative Negative Separate
Positive Negative Separate
Positive Positive Separate
Separate Sync
Horizontal
Video Video
CC
Vertical
Video Video DD E
E Q
Q
RR
S S
Sync Sync B B AA
Sync Sync
PP
O O
A : Line time total C : Back porch E : Front porch CN15V*
B : Horizontal sync width D : Active time
O : Frame time total Q : Back porch S : Front porch
P : Vertical sync width R : Active time
2-3
2 Product Specifications
Table 2-1. Timing Chart Continued Mode 800/72 Hz 800 x 600 48.077 20.800 2.400 1.280 16.000 1.120 72.188 13.853 0.125 0.478 12.480 0.770 50.000 800/75 Hz 800 x 600 46.875 21.333 1.616 3.232 16.162 0.323 75.000 13.333 0.064 0.448 12.800 0.021 49.500 VESA 1024/60Hz 1024x768 48.363 20.677 2.092 2.462 15.754 0.369 60.004 16.666 0.124 0.600 15.880 0.062 65.000 1024/70Hz 1024x768 56.476 17.707 1.813 1.920 13.653 0.320 70.069 14.272 0.106 0.513 13.599 0.053 75.000 1024/75Hz 1024x768 60.023 16.660 1.219 2.235 13.003 0.203 75.029 13.328 0.050 0.466 12.795 0.017 78.750 MAC. 640/67 Hz 640 x 480 35.000 28.571 2.116 3.175 21.164 2.116 66.667 15.000 0.086 1.114 13.714 0.086 30.240 832/75 Hz 832 x 624 49.726 20.110 1.117 3.910 14.524 0.559 74.551 13.414 0.060 0.784 12.549 0.020 57.284
Timing fH (kHz) A µsec B µsec C µsec D µsec E µsec fV (Hz) O msec P msec Q msec R msec S msec Clock Frequency (MHz) Polarity H.Sync V.Sync Remark
Positive Positive Separate
Positive Positive Separate
Negative Negative Separate
Negative Negative Separate
Positive Positive Separate
Negative Negative Separate
Negative Negative Separate
Separate Sync
Horizontal
Video Video
CC
Vertical
Video Video DD E E
Q
Q
RR
S S
Sync Sync B B AA
Sync Sync
PP
O O
A : Line time total C : Back porch E : Front porch
B : Horizontal sync width D : Active time
O : Frame time total Q : Back porch S : Front porch
P : Vertical sync width R : Active time
2-4
CN15V*
1 Precautions
1-2 Servicing Precautions
WARNING: Caution: Note: An electrolytic capacitor installed with the wrong polarity might explode. Before servicing units covered by this service manual, read and follow the Safety Precautions section of this manual. If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions, always follow the safety precautions.
1-2-1 General Servicing Precautions
1. Always unplug the unit's AC power cord from the AC power source and disconnect the DC Power Jack before attempting to: (a) remove or reinstall any component or assembly, (b) disconnect PCB plugs or connectors, (c) connect a test component in parallel with an electrolytic capacitor. Some components are raised above the printed circuit board for safety. An insulation tube or tape is sometimes used. The internal wiring is sometimes clamped to prevent contact with thermally hot components. Reinstall all such elements to their original position. After servicing, always check that the screws, components and wiring have been correctly reinstalled. Make sure that the area around the serviced part has not been damaged. 4. Check the insulation between the blades of the AC plug and accessible conductive parts (examples: metal panels, input terminals and earphone jacks). Insulation Checking Procedure: Disconnect the power cord from the AC source and turn the power switch ON. Connect an insulation resistance meter (500 V) to the blades of the AC plug. The insulation resistance between each blade of the AC plug and accessible conductive parts (see above) should be greater than 1 megohm. 6. Always connect a test instrument's ground lead to the instrument chassis ground before connecting the positive lead; always remove the instrument's ground lead last.
5.
2.
3.
1-3 Electrostatically Sensitive Devices (ESD) Precautions
Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonly called Electrostatically Sensitive Devices (ESD). Examples of typical ESD devices are integrated circuits and some fieldeffect transistors. The following techniques will reduce the incidence of component damage caused by static electricity. 1. Immediately before handling any semiconductor components or assemblies, drain the electrostatic charge from your body by touching a known earth ground. Alternatively, wear a discharging wriststrap device. To avoid a shock hazard, be sure to remove the wrist strap before applying power to the monitor. After removing an ESD-equipped assembly, place it on a conductive surface such as aluminum foil to prevent accumulation of an electrostatic charge. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ESDs. Use only a grounded-tip soldering iron to solder or desolder ESDs. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to damage ESDs. 8. 6. Do not remove a replacement ESD from its protective package until you are ready to install it. Most replacement ESDs are packaged with leads that are electrically shorted together by conductive foam, aluminum foil or other conductive materials. Immediately before removing the protective material from the leads of a replacement ESD, touch the protective material to the chassis or circuit assembly into which the device will be installed.
7.
2.
3.
Caution: Be sure no power is applied to the chassis or circuit and observe all other safety precautions.
Minimize body motions when handling unpackaged replacement ESDs. Motions such as brushing clothes together, or lifting your foot from a carpeted floor can generate enough static electricity to damage an ESD.
4. 5.
1-2
CN15V*
Samsung Electronics Co.,Ltd. 416, Maetan-3Dong, Paldal-Gu, Suwon City, Kyungki-Do, Korea. Tel : +82-31-200-7920 Fax : +82-31-200-7802 Printed in Korea P/N : BN68-00097K-00 http://www.samsungmonitor.com (SyncMaster Worldwide) http://www.samsung-monitor.com (SyncMaster USA) http://www.samtron.com (SAMTRON Worldwide) http://www.sec.co.kr/monitor (Korea)