Table of Contents
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15.6 LCD Monitor
Service
Service
Service
Description
Table of Contents...........................................................1
Revision List.................................................................2
Important Safety Notice..................................................3
1. Monitor Specifications..................................................4
2. LCD Monitor Description..............................................6
3. Operation instructions..................................................7
3.1 General Instructions....................................................7
3.2 Control buttons...............................................7
3.3 OSD Menu............................................................10
4. Input/output Specification.......................................12
4.1 Input Signal Connector.......................................12
4.2 Factory Preset Display Modes................................12
4.3 Pixel Defect Policy..........................................13
4.4 Failure Mode of Panel .......................................15
5. Block Diagram......................................................16
5.1 Scaler Board.................................................16
5.2 Adapter Board.........................................................17
6. Schematic Diagram....................................................18
ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING
ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.
CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING
REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES
Copyright 2010 Philips Consumer Lifestyle
160EL1SB/00
160EL1SB/05
160EL1SB/62
160EL1SB/70
160EL1SB/71
160EL1SB/93
160EL1SB/94
160EL1SB/97
Page Description
6.1 Scaler Board................................................18
6.2 Adapter Board............................................22
6.3 Key Board...................................................25
7. PCB Layout.................................................26
7.1 Scaler Board................................................26
7.2 Adapter Board.............................................27
7.3 Key Board...................................................33
8. Wiring Diagram..............................................34
9. Scaler Board Overview....................................35
10. Mechanical Instructions..................................36
11. Repair Flow Chart..........................................41
12. ISP Instructions....................................................46
13. DDC Instructions..................................................52
14. White Balance, Luminance Adjustment...............55
15. Monitor Exploded View........................................57
16. Recommended & Spare Parts List.......................58
17. Different Parts List........................................70
18. General Product Specification...........................71
SAFETY NOTICE
Subject to modification
Chassis: Meridian 1
Horizontal Frequency
30-83 kHz
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Summary of Contents for Philips 160EL1SB/00
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Page 1: Table Of Contents
AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES. CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING REFER TO BACK COVER FOR IMPORTANT SAFETY GUIDELINES Copyright 2010 Philips Consumer Lifestyle Subject to modification... -
Page 2: Revision List
Update BOM for 160EL1SB/94 Aug.13,2010 Add CTN model 160EL1SB/71 Nov.23,2010 Add CTN model 160EL1SB/70 Add TPV C2D panel for 160EL1SB/00, 160EL1SB/70, 160EL1SB/71 and 160EL1SB/94 Apr.19,2011 Lead into the Converter board (PCB: 715G4013P01005004I) for TPV C2D panel Add TPV C2D panel for 160EL1SB/97 May.09,2010... -
Page 3: Important Safety Notice
Meridian 1 Important Safety Notice Proper service and repair is important to the safe, reliable operation of all Philips Company Equipment. The service procedures recommended by Philips and described in this service manual are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. -
Page 4: Monitor Specifications
Meridian 1 1. Monitor Specifications LCD Panel Type TFT LCD Screen size 15.6 visual Pixel Pitch 0.252 x 0.252 mm 1366 x 768 pixels LCD Panel type R,G,B vertical stripe Anti-glare polarizer, hard coated Effective viewing area 347.5 x 196.8 mm Display colors 16.7M Scanning... - Page 5 Meridian 1 Automatic Power Saving If you have VESA DPM compliance display card or software installed in your PC, the monitor can automatically reduce its power consumption when not in use. If an input from a keyboard, mouse or other input device is detected, the monitor will 'wake up' automatically.
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Page 6: Lcd Monitor Description
Meridian 1 2. LCD Monitor Description The LCD monitor will contain a scaler board, an adapter board, converter board and a key board which house the flat panel control logic, brightness control logic and DDC. The adapter board will provide AC to DC Inverter voltage to drive the backlight of panel and the scaler board chips each voltage. -
Page 7: Operation Instructions
Meridian 1 3. Operating Instructions 3.1 General Instructions Press the power button to turn the monitor on or off. The other control knobs are located at front panel of the monitor. By changing these setting, the picture can be adjusted to your personal preference. The power cord should be connected. - Page 8 Meridian 1 Rear View Kensington anti-thief lock AC power input VGA input...
- Page 9 Meridian 1 Connecting to Your PC 1) Connect the power cord to the back of the monitor firmly. 2) Connect to PC (a) Turn off your computer and unplug its power cable. (b) Connect the monitor signal cable to the video connector on the back of your computer. (c) Plug the power cord of your computer and your monitor into a nearby outlet.
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Page 10: Osd Menu
Meridian 1 3.3 OSD Menu This is a feature in all Philips LCD monitors. It allows an end user to adjust screen performance of the monitors directly through an on-screen instruction window. The user interface provides user friendliness and ease-of-use when operating the monitor. - Page 11 Meridian 1 The OSD tree Below is an overall view of the structure of the On-Screen Display. You can use this as a reference when you want to work your way around the different adjustments later on.
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Page 12: Input/Output Specification
Meridian 1 4. Input/ Output Specification 4.1 Input Signal Connector Analog connectors Signal Name Signal Name Pin No. Pin No. Red video input DDC +5V Green video input/SOG Logic ground Blue video input Ground Serial data line (SDA) Sense (GND) Cable Detect (GND) H. -
Page 13: Pixel Defect Policy
No manufacturer can guarantee that all panels will be free from pixel defects, but Philips guarantees that any monitor with an unacceptable number of defects will be repaired or replaced under warranty. This notice explains the different types of pixel defects and defines acceptable defect levels for each type. - Page 14 In order to qualify for repair or replacement due to pixel defects during the warranty period, a TFT LCD panel in a Philips flat panel monitor must have pixel or sub pixel defects exceeding the tolerances listed in the following tables.
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Page 15: Failure Mode Of Panel
Meridian 1 4.4 Failure Mode Of Panel Quick reference for failure mode of LCD panel this page presents problems that could be made by LCD panel. It is not necessary to repair circuit board. Simply follow the mechanical Polarizer has bubbles instruction on this manual to eliminate failure by replace LCD panel. -
Page 16: Block Diagram
Meridian 1 5. Block Diagram 5.1 Scaler Board Crystal Oscillator 12MHZ (X401) Flash Memory Panel Interface PM25LV010A-100SCE (U402) (CN405) Scaler IC NT68167FG/D (Include MCU, ADC, OSD) EEPROM (U401) Key Control Interface M24C16 (CN401) (U407) HSIN VSIN DDC_SDA DDC_SCL D-Sub Connector (CN101) -
Page 17: Adapter Board
Meridian 1 5.2 Adapter Board Adapter AC input Bridge Rectifier EMI filter Transformer Rectifier diodes and Filter Start Resistor (R904, R932) Feedback Circuit PWM Control Power Switch (IC901) (Q901) Photocoupler (IC902) Converter 715G3918P01000004F ZD801 L801 MOSFET (Q801) (CN803) PWM Control TA9690GN (IC801) Converter 715G4013P01005004I... -
Page 34: Wiring Diagram
9 Pin 6 Pin Converter Board 10 Pin CN803... -
Page 35: Scaler Board Overview
Meridian 1 9. Scaler Board Overview LVDS Scaler Crystal D-SUB... -
Page 36: Mechanical Instructions
Meridian 1 10. Mechanical Instructions Tools: Cross-Screwdriver; Putty knife; hexagonal Screw-driver Front and Back view Front Back Step 1: Remove the STAND-BASE ASS'Y Remove the 3 screws as marked in red. Note: Place the monitor face down on a smooth, clean and soft surface, be careful to avoid scratch and injury during the process of uninstall. - Page 37 Meridian 1 Step 3: Remove the MAIN FRAME. Remove the 6 screws marked in red. Step 4: Remove the PANEL. 1. Pull out the FFC cable as the direction of arrow. 2. Pull out the LVDS cable as the direction of arrow. FFC cable...
- Page 38 Meridian 1 LVDS cable...
- Page 39 Meridian 1 Step 5: Remove the MAIN, Adapter and KEY BOARDS. 1. Remove the 3 screws as marked in red. 2. Remove the 4 wires as marked in yellow.
- Page 40 Meridian 1...
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Page 41: Repair Flow Chart
Meridian 1 11. Repair Flow Chart 1. No Power No power Check power cable is tightened? Re-plug the power cable Check “Power on/off” is on? Turn on the “Power ON/OFF” switch Check the LED indicate is OK? Check the AC power Replace the converter board Replace main board and check connections Replace key board and check connections... - Page 42 Meridian 1 2. No Video (Power LED Green) No Video (Power LED Green) Press the power button is OK? Replace the main board Replace the converter board The end Replace the main board and connection The end Check the LVDS/FFC cable or panel Replace the LVDS/FFC cable or panel Replace the key board...
- Page 43 Meridian 1 3. DIM DIM (image overlap, focus or flicker) Reset in factory mode The end Set to the optimal frequency, select the recommended frequency The end Readjust the phase and pixel clock in the user mode The end Pull out signal cable and check “Self Test Feature Check”...
- Page 44 Meridian 1 4. Color is not optimal Color is not optimal Color shift Miss color Reset the factory mode Replace the signal cable In the user mode, set the” color The end settings” until customer satisfy Pull out the signal cable and check the screen color display is normal? Replace the signal cable or PC...
- Page 45 Meridian 1 5. Part Darkness Part darkness Check factory reset is OK Check the converter board Replace he converter board Check the Lamp FFC is intact Replace the FFC Check the panel...
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Page 46: Isp Instructions
Meridian 1 12. ISP Instruction When do the parts, need the tools as follow: A. An i486 (or above) personal computer or compatible. B. Microsoft operation system Windows 95/98/2000/XP. C. “PORT95NT” and “EasyUSB WriterV4.1” program. D. Software ISP Alignment kits: a. - Page 47 Meridian 1 12.3 The process of ISP write is as follow: a) Double-click ,running the program as follows:...
- Page 48 Meridian 1 b) Click icon, search the ISP FW and click open:...
- Page 49 Meridian 1 c) Click icon. d) Successfully, if the graphic is show as below:...
- Page 50 Meridian 1 12.4 Check the firmware version and Auto Color: Take the 202E2 for example as below. 1. Press buttons at the same time, power on the monitor, and then press the menu again; the picture will appear on the top left corner. Choose “Input” item, and then choose “Factory”, you will enter into the factory mode.
- Page 51 Meridian 1 5. Press “MENU” to enter into user mode to restore the factory setting. Otherwise, monitor will not be able to save setting. If not save the setting, when AC ON/OFF, it will can’t find the boot LOG from the screen. As the below pictures: Note: If DVI no picture or VGA can’t be adjusted to the best resolution, please rewrite EDID.
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Page 52: Ddc Instructions
Meridian 1 13. DDC Instruction General DDC Data Re-programming In case the main EEPROM with Software DDC which store all factory settings were replaced because a defect, repaired monitor’ the serial numbers have to be re-programmed. It is advised to re- soldered the main EEPROM with Software DDC from the old board onto the new board if circuit board have been replaced, in this case the DDC data does not need to be re-programmed. - Page 53 Meridian 1 Take analog DDC write for example as follow: a. Double-click , appear as follow:...
- Page 54 Meridian 1 b. Click , and key in 14 numbers in the Serial Number, then click “OK”, when the analog DDC Write complete, it will show the picture as follow: c. Click to check if Write is OK as below:...
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Page 55: White Balance, Luminance Adjustment
Connect tool as follow: Note: It’s not necessary to connect Port2. To PC LPT To PC Port 2 To CA210 or Philips 160EL1 equivalent instrument 3. Adjustment Preparation before adjustment: a. Monitor should be warmed up for more than half an hour. - Page 56 Meridian 1 Philips160EL1.DDCI Philips160EL1.DDCI 2. Color Temp confirmation Connect the signal to the monitor, the monitor displays white-picture, use CA210 to measure the Color Temp of the screen center and select the OSD to make sure whether the Color Temps accord with the SPEC. 3.
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Page 58: Recommended & Spare Parts List
E08901 089G404A15N IS AC POWER CORD 1500 FQ124 Q15G0248G02 MAIN_FRAME M037 Q37G0067012 HINGE FQ202 Q44G6004813 3A 15.6 PHILIPS 160EL1 FQ205 705GQ9CS137 CUSHION ASSY TPV C1D FQ205 803GQB44011 L156W-8QPH1 EPS ASSY TPV C2D FQ210 Q45G 88606 R PE BAG FOR BASE... - Page 59 Q34G0274AFL 2B0100 REAR COVER15.6 FQ106 Q34G0551AFLB1B0130 BEZEL L156W-8QPH1 FQ205 705GQ9CS137 CUSHION ASSY FQ202 Q44G6004813 4A 15.6 LCD PHILIPS CARTON FQ210 Q45G 88606 R PE BAG FOR BASE FQ210 Q45G 88607 26 PE BAG FOR STAND FQ203 Q45G 88609201 EPE BAG...
- Page 60 DIODE FCF10A20 10A/200V TO-220 Q90G6263 6 HEAT SINK IC901 056G 379107 IC LD7575A PS SOP-8 Q903 057G 417 4 PMBS3904/PHILIPS-SMT(04) R942 061G0603102 JF RST CHIPR 1K OHM +-5% 1/10W FENGHUA R926 061G0603102 JF RST CHIPR 1K OHM +-5% 1/10W FENGHUA R930 061G06032431FF RST CHIPR 2.43KOHM +-1% 1/10W FENGHUA...
- Page 61 Meridian 1 R939 061G08051001FT RST CHIP 1K 1/8W 1% R925 061G08051001FT RST CHIP 1K 1/8W 1% R939 061G08051001FY RST CHIPR 1KOHM +-1% 1/8W YAGEO R925 061G08051001FY RST CHIPR 1KOHM +-1% 1/8W YAGEO R938 061G08051002FF RST CHIPR 10KOHM +-1% 1/8W FENGHUA R915 061G08051003FF RST CHIPR 100KOHM +-1% 1/8W FENGHUA...
- Page 62 Meridian 1 ZD921 093G 39S 40 T RLZ 13B LLDS ZD902 093G 39S 40 T RLZ 13B LLDS D903 093G 64S522SEM LL4148 D916 093G 64S522SEM LL4148 D915 093G 64S522SEM LL4148 C813 067G 4151017KV EC 100uF 50V ED 8*12 C804 067G 4151017KV EC 100uF 50V ED 8*12 C813 067G 4151017LV...
- Page 63 Meridian 1 R833 061G0603109 JY RST CHIPR 1 OHM +-5% 1/10W YAGEO R832 061G0603109 JY RST CHIPR 1 OHM +-5% 1/10W YAGEO R831 061G0603109 JY RST CHIPR 1 OHM +-5% 1/10W YAGEO R830 061G0603109 JY RST CHIPR 1 OHM +-5% 1/10W YAGEO R829 061G0603109 JY RST CHIPR 1 OHM +-5% 1/10W YAGEO...
- Page 64 Meridian 1 C426 067G 3151014KB EC 100uF M 25V 6.3*11 C421 067G 3151014KB EC 100uF M 25V 6.3*11 C421 067G 3151014PB CAP 105C 100UF M 25V C445 067G 3151014PB CAP 105C 100UF M 25V C427 067G 3151014PB CAP 105C 100UF M 25V C426 067G 3151014PB CAP 105C 100UF M 25V...
- Page 65 Meridian 1 R464 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R465 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R418 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R442 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R449 061G0402101 RST CHIPR 100 OHM +-5% 1/16W R450 061G0402101 RST CHIPR 100 OHM +-5% 1/16W...
- Page 66 Meridian 1 R434 061G1206221 F RST CHIPR 220 OHM +-5% 1/4W FENGHUA C409 065G040210131J CAP 0402 100PF J 50V NPO C409 065G040210131J CAP CHIP 0402 100P 50V NPO +/-5% C420 065G040210412K CAP CHIP 0402 100nF K 16V X7R C417 065G040210412K CAP CHIP 0402 100nF K 16V X7R C416 065G040210412K...
- Page 67 Meridian 1 C419 065G0402105A5K CAP CHIP 0402 1UF K 10V X5R C419 065G0402105A5K CAP CHIP 0402 1uF K 10V X5R C103 065G040222031J CAP 0402 22PF J 50V NPO C103 065G040222031J CAP CHIP 0402 22P 50V NPO +/-5% C102 065G040222131J CAP 0402 220PF J 50V NPO C446 065G040222417Z CAP CHIP 0402 220nF Z 16V Y5V...
- Page 68 Meridian 1 FB405 071G 56V301 M CHIP BEAD 2012 300 OHM FB101 071G 59B300 K CHIP BEAD 30 OHM 0603 FB102 071G 59B300 K CHIP BEAD 30 OHM 0603 FB103 071G 59B300 K CHIP BEAD 30 OHM 0603 FB103 071G 59B300 TA CHIP BEAD 30OHM TAI TECH FB102 071G 59B300 TA...
- Page 69 Meridian 1 Service Kit Description Part No. Picture DDC KIT 715GT034-B NOVATEK ISP KIT 715LT035-A...
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Page 71: General Product Specification
Meridian 1 18. General Product Specification Please refer to the 160EL1 Product Specification the next page:... - Page 72 . 15.6” WIDE COLOR TFT LCD FLAT PANEL . FULL RANGE POWER SUPPLY 90 – 264 VAC . CE ENVIRONMENTAL POLICY 160E1 15.6” Wide LCD Monitor Rev : Type 2008/12/31 PHILIPS 1 of 20 Brand : Date : Page :...
- Page 73 . POWER MANAGEMENT CAPABILITY . SOG SUPPORT . SMARTContrast 1000000 :1(Typical) . Windows Vista Basic/Standard Logo Certification . TrueVision, FACTORY GAMMA ALIGNMENT I(FGAI) REQUIREMENT . POWER ON PHILIPS LOGO REQUIREMENT . WEEE REQUIREMENT . RoHS REQUIREMENT 160E1 15.6” Wide LCD Monitor...
- Page 74 - ....................... 12 OCATION OF ONTROL ICONS - ........................12 OLOR FOR RESIN PAINT - ........................12 IRE ENCLOSURE REQUEST ..............................12 ESINS 160E1 15.6” Wide LCD Monitor Rev : Type 2008/12/31 PHILIPS 3 of 20 Brand : Date : Page :...
- Page 75 ISPLAY DISTURBANCES TO EXTERNAL ENVIRONMENT RELIABILITY ..............................16 ......................16 ETWEEN AILURES QUALITY ASSURANCE REQUIREMENTS ....................16 ..........................16 CCEPTANCE TEST PHILIPS’ FLAT PANEL MONITORS PIXEL DEFECT POLICY ..............17 REGULATORY COMPLIANCE ........................ 20 10.1 ........................20 ORLDWIDE EGULATORY 10.2 EMC R ..........................
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Page 76: Foreword
30 minutes that brightness stability is optimal, and follow strictly after panel specification. PRODUCT PROFILE This display monitor unit is a color display monitor enclosed in PHILIPS styling cabinet which has an integrated tilt base. Tier1:TPV 2.1.1... - Page 77 Composite sync TTL level, input impedance 2.2k ohm terminate (Positive/Negative) Sync on green video 0.3 Vp-p Negative (Video 0.7 Vp-p Positive) 160E1 15.6” Wide LCD Monitor Rev : Type 2008/12/31 PHILIPS 6 of 20 Brand : Date : Page :...
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Page 78: Interface
Red GND Green GND Blue GND DDC +3.3V or +5V Logic GND Sense (GND) Bi-directional data H/H+V sync V-sync Data clock 160E1 15.6” Wide LCD Monitor Rev : Type 2008/12/31 PHILIPS 7 of 20 Brand : Date : Page :... -
Page 79: Timing Requirement
OSD LANGUAGES 9 LANGUAGES OSD TREE POWER ON LOGO Power On Logo: Power On Show up Philips logo 3 seconds Change to input signal. This picture is reference only. The official drawing will send out by PM. -
Page 80: Horizontal Scanning
Data for EDID & INF file Data for EDID & .inf file Data for EDID & .inf file User visible strings on .inf file Philips 160EL (16inch WIDE LCD MONITOR 160EL1) Manufacturer ID ( EDID data) Product ID, "xxxx" 4 codes MSB(byte 12): C0... -
Page 81: Hot-Key Definition
Philips 160EL 3.12 Hot-key definition Any deviation between document and sample, please refer to Philips approved sample. 3.13 Smart contrast (Dynamic contrast ratio) Smart Contrast is a kind of dynamic backlight control. This function changes panel backlight dynamically according to the frame brightness histogram. -
Page 82: Check Cross Talk (S)
= 0.313 ± 0.015 y = 0.329 ± 0.015 sRGB x = 0.313 ± 0.015 y = 0.329 ± 0.015 160E1 15.6” Wide LCD Monitor Rev : Type 2008/12/31 PHILIPS 11 of 20 Brand : Date : Page :... -
Page 83: Mechanical Characteristics
Mechanical characteristics Cosmetic - Philips ID Mechanical data files - ProE files required Location of Philips logo - Per Philips make-up sheet Gap between panel and front bezel <1.4mm(Max.) Location of Control icons - Per Philips Graphic sheet... -
Page 84: Texture/Glossing Of Housing
All major plastic parts (bezel, back cover) need to be molded from same resin. Plastic resin type selection should be referred to “plastic-Philips Pool monitor”. 5.12 Texture/Glossing of housing The texture area and texture no should follow Philips make-up sheet. -
Page 85: Tilt And Swivel Base
Carton label should follow Philips requirement. Regulatory label follow Philips requirement. China RoHS label Detail document refer to Philips Engineering Reference Book. 5.16 Product dimension / Weight (Refer to Philips approved SHT 191/SHT560) Unit dimension : 376(w)*303(H)*156(D) 160E1 15.6” Wide LCD Monitor Rev :... -
Page 86: Transportation
B. 20’/40’/40’HQ Container loading for WW Transportation request for China and India A. Container loading for China and India B. Truck loading 160E1 15.6” Wide LCD Monitor Rev : Type 2008/12/31 PHILIPS 15 of 20 Brand : Date : Page :... -
Page 87: Environmental Characteristics
According to MIL-STD-105D Control II level AQL: 0.4 (major) 1.5 (minor) (Please also refer to annual quality agreement) Customer acceptance criteria: UAW0377/00 160E1 15.6” Wide LCD Monitor Rev : Type 2008/12/31 PHILIPS 16 of 20 Brand : Date : Page :... -
Page 88: Philips' Flat Panel Monitors Pixel Defect Policy
Philips’ Flat Panel Monitors Pixel Defect Policy Philips’ Flat Panel Monitors Pixel Defect Policy BRIGHT DOT DEFECTS ACCEPTABLE LEVEL 160EL1 MODEL 1 lit sub-pixel 2 adjacent lit sub-pixels 3 adjacent lit sub-pixels (one white pixel) Distance between two bright dot defects*... - Page 89 Fig 1: Measurement locations of Brightness Uniformity 160E1 15.6” Wide LCD Monitor Rev : Type 2008/12/31 PHILIPS 18 of 20 Brand : Date : Page :...
- Page 90 Fig 2: Cross talk pattern Gray level 46 (64 Gray level) Fig 3: Cross talk Pattern Center at Gray level 0 (Black) 160E1 15.6” Wide LCD Monitor Rev : Type 2008/12/31 PHILIPS 19 of 20 Brand : Date : Page :...
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Page 91: Regulatory Compliance
10.2 EMC Requirements Supplier DVT EMI test result must be submitted prior to DVT samples delivery, and PVT EMI test result must be submitted again prior to PVT samples delivery. Which also has to meet Philips' immunity testing specification. 10.3 RoHS Restriction on the use of certain hazardous substances. - Page 92 4. When the HV circuitry is operating properly there is no possibility of an x- tube must be the same type as the original, including suffix letter, or a Philips radiation problem. High voltage should always be kept at the manufacturer's approved type.