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Alignment & Adjustment
3. Alignment & Adjustment
3-1 Service Instruction
* Check items listed after changing each
Replaced Items Item Code Check Items
1) Auto Program
ASSY PCB MISC-MAIN BN94-00694A 2) Let the user go through subscription process after contacting
user's cable service provider.
ASSY PCB P-SMPS(MAIN) BN96-02213A Voltage Adjustment
ASSY PCB P-SMPS(DC DC) BN96-01856A Voltage Adjustment
ASSY PCB P-SMPS(POD) BN96-01805A -
ASSY PDP P-LOGIC BOARD BN96-02035A -
ASSY PDP P-X MAIN BOARD BN96-02032A -
ASSY PDP P-Y MAIN BOARD BN96-02033A -
ASSY PDP P-Y UPPER BUFFER BOARD BN96-02034A -
ASSY PDP P-Y LOWER BUFFER BOARD BN96-02216A -
ASSY PDP P-ADDRESS E BUFF BOARD BN96-02036A -
ASSY PDP P-ADDRESS F BUFF BOARD BN96-02037A -
When replacing the SMPS or PDP panel, you have to check the voltage printed on the panel sticker and adjust it.
Samsung Electronics 3-1
Alignment & Adjustment
3-2 How to Access Service Mode
Using the Customer Remote
1. Turn the power off and set to stand-by mode.
2. Press the remote buttons in this order; MUTE-1-8-2- POWER ON to turn the set on.
3. The set turns on and enters service mode.
4. Press the Power button to exit and store data in memory.
If you fail to enter service mode, repeat steps 1 and 2 above.
5. Initial SERVICE MODE DISPLAY State
HDMI/DTV HD
Calibration Adjust
Option Byte Test Pattern
White Balance Chip Debugger
SVP-EX Checksum
MST9883 Option PDP
MSP34XX RESET
YC Delay
DNIe Lite
T-STRANUS0S-0036 Jan 12 2005
T-STRANUS5-0117 [Sec : 29]
"T-STRANUS0S-0036" and "T-STRANUS5-0117" are firmware version.
The firmware version is subject to change without notice.
6. Buttons operations within Service Mode
MENU Full Menu Display / Move to Parent Menu
Direction keys / Item Selection by Moving the Cursor
Direction keys / Data Increase/Decrease for the Selected Item
Source Cycles through the active input source that are connected to the unit
3-2 Samsung Electronics
Alignment & Adjustment
3-3 Factory Data The underlined are items applied during the service adjustment. None of the others should be adjusted.
1. Calibration
ITEM
AV Calibration Off
Comp Calibration Off
PC Calibration Off
2. Option Byte
ITEM
Caption Level 16
MGT-VCT Ver. Check 0
V-Chip Enable 1
Watchdog Enable 1
Spread Enable PC 1
Clock Adjust 4
Nim Version T310
MSP Version G
New_WB_CbCr 1
3. White Balance
Initial Values of Input Modes
ITEM Range
TV/AV/S-video Component PC HDMI
Sub Bright(SVP) 0~1204 447 457 480 450
R-Offset 0~1204 511 516 512 512
G-Offset 0~1204 512 512 512 512
B-offset 0~1204 513 513 512 508
Sub Contrast(DNIe) 0~255 128 128 128 128
R-Gain 0~255 120 120 128 120
G-Gain 0~255 120 120 128 120
B-Gain 0~255 120 140 128 140
Sub Contrast(SVP) 256 256 256 256
Samsung Electronics 3-3
Alignment & Adjustment
4. SVP-EX
Initial Values of Input Modes
ITEM Range Component
TV AV/S-Video PC HDMI
480i/P 720/1080
00.Comb Filter
01.Y-Filter
01.Peaking
01.V-PosGain 0~15 4 4 1 2 0 1
02.V-NegGain 0~15 4 4 4 5 0 4
03.V-BpGain 0~32 16 16 16 16 16 16
04.V-HfGain 0~32 20 20 20 20 20 20
05.V-Peaking-TH 1 0~256 16 16 16 16 16 16
06.V-Peaking-TH 3 0~256 128 128 128 128 128 128
02.NR
01.Y-NR-Off
02.C-NR-Off
03.Y-NR-On
04.C-NR-On
03.Deinterlace
01.Motion
04.Picture Gain Adjust
01.TCD3 Contrast 0~255 120 120 120 - 120
02.TCD3 Brightness 0~255 49 49 49 - 49
03.TCD3 YC Delay 0~15 1 0 1 - 1
04.Analog Y Offset 0~1023 61 61 61 - 61
05.Analog PB Offset 0~1023 512 512 512 - 512
06.Analog PR Offset 0~1023 512 512 512 - 512
07.Analog Y Gain 0~255 217 217 217 - 217
08.Analog PB Gain 0~255 225 225 225 - 225
09.Analog PR Gain 0~255 225 225 225 - 225
10.Black Level Setting 0~255 0 0 0 - 0
11.Brightness 0~255 125 125 125 - 125
12.UserColor(MAX) 0~127 127 127 120 - 127
06.WB Control
01.MP R-Offset2 0~1023 512 512 512 512 512
02.MP G-Offset2 0~1023 512 512 512 512 512
03.MP B-Offset2 0~1023 512 512 512 512 512
04.PP R-Offset2 0~1023 512 512 512 512 512
05.PP B-Offset2 0~1023 512 512 512 512 512
06.PP B-Offset2 0~1023 512 512 512 512 512
3-4 Samsung Electronics
Alignment & Adjustment
Initial Values of Input Modes
Sub
ITEM Range AV/ Component HDMI
Address 'h TV PC
S-Video 480i 480p 720p 1080i 480P 720P 1080i
07. Chroma
01.LtiPeakGain P1 Luma/Croma 0x0F [4:0] 0~31 31 31 31 31 31 31 31 31 31
02.LtiStep P1 Luma/Croma 0x0F [6:5] 0~3 2 2 2 2 2 2 2 2 2
03.LtiTh P1 Luma/Croma 0x10 [7:0] 0~255 16 16 16 16 16 16 16 16 16
04.LtiGain P1 Luma/Croma 0x11 [4:0] 0~31 8 10 10 10 10 10 10 10 10
05.LowPassGain P1 Luma/Croma 0x12 [4:0] 0~31 8 17 17 7 10 10 17 12 5
06.BandPassGain P1 Luma/Croma 0x13 [4:0] 0~31 13 24 24 10 13 13 8 2 2
07.HighPassGain P1 Luma/Croma 0x14 [4:0] 0~31 10 18 18 2 10 10 2 26 10
08.PeakStep P1 Luma/Croma 0x12 [6:5] 0~3 1 1 1 1 1 1 1 0 0
09.PeakTh1 P1 Luma/Croma 0x15 [7:0] 0~255 7 7 7 7 7 7 7 7 7
10.PeakTh2 P1 Luma/Croma 0x16 [7:0] 0~255 2 2 2 2 0 0 2 2 2
11.PeakTh3 P1 Luma/Croma 0x19 [7:0] 0~255 32 32 32 32 32 32 32 32 32
P1 Luma/Croma 0x14 [7:5]
12.PeakN1Factor2 0~63 56 8 8 8 0 0 0 0 0
P1 Luma/Croma 0x13 [7:5]
13.PeakN1Factor1 P1 Luma/Croma 0x1A [5:0] 0~63 40 48 48 40 48 48 40 40 40
14.CoringTh P1 Luma/Croma 0x17 [7:0] 0~255 2 2 2 2 2 2 2 2 2
15.CoringGain P1 Luma/Croma 0x18 [4:0] 0~31 8 0 8 8 8 8 8 8 8
16.PeakPosGain P1 Luma/Croma 0x49 [7:4] 0~15 1 1 1 3 1 1 1 1 1
17.PeakNegGain P1 Luma/Croma 0x49 [3:0] 0~15 1 1 1 3 1 1 1 1 1
18.BypassHsharp P1 Luma/Croma 0x1A [6] 0~1 0 0 0 0 0 0 0 0 0
19.DctiGain P1 Luma/Croma 0x28 [3:0] 0~15 4 4 10 10 10 10 4 4 4
20.DctiStep P1 Luma/Croma 0x29 [6:4] 0~7 1 1 7 1 1 1 1 1 1
21.DctiEnable P1 Luma/Croma 0x29 [7] 0~1 1 1 1 1 1 1 1 1 1
22.DctiThres P1 Luma/Croma 0x2A [7:0] 0~255 12 12 12 12 12 12 12 12 12
08.CLK_A P5. DSS 0x0A[15:0] 16~17 16 16 16 17
09.CLK_B P5. DSS 0x0B[15:0] 0~255 96 96 96 0
10.GAMMA 0 0 0 0
Samsung Electronics 3-5
Alignment & Adjustment
5. MST9883
Initial Values of Input Modes
ITEM Range
TV/AV/SVHS Component PC HDMI
R_Gain 0~255 112 112 112 112
G_Gain 0~255 112 112 112 112
B_Gain 0~255 113 113 113 113
R_Offset 0~255 122 122 122 122
G_Offset 0~255 121 121 121 121
B_Offset 0~255 122 122 122 122
6. MSP34XX
ITEM Range Initial
FM-Prescale 0~255 0x20
NICAM-Prescale 0~255 0x20
AV-Prescale 0~255 0x1C
I2S_1 Prescale 0~255 0x10
I2S_3 Prescale 0~255 0x11
Carrier Mute 0~255 On
Pilot High 0~255 0x0D
Pilot Low 0~255 0x07
Scart1 Out Volume 0~255 0x6D
Scart2 Out Volume 0~255 0x73
7. YC Delay
Initial Values of Input Modes
ITEM Range
TV/AV/SVHS Component PC HDMI
RF PAL-B/G 0~255 0
RF PAL-D/K 0~255 0
RF PAL- I 0~255 0
RF SECAM-B/G 0~255 0
RF SECAM-D/K 0~255 0
RF SECAM-L/L' 0~255 0
RF NTSC3.58 0~255 0 - - -
RF NTSC4.43 0~255 0
AV PAL 0~255 0
AV SECAM 0~255 0
AV NTSC 3.58 0~255 0
AV NTSC4.43 0~255 0
AV PAL60 0~255 0
3-6 Samsung Electronics
Alignment & Adjustment
8. DNIe Lite
Initial Values of Input Modes
ITEM Range
TV/AV/SVHS Component PC HDMI
01.PATT_SEL 0~63 0 0 0 0
02.BLACK_TILT 0~255 125 125 80 120
03.BLACK_GAINMAX 0~1023 380 390 370 380
04.TEST_MCC 0~255 0 0 0 0
05.OVERLAP_MCM 0~255 0 0 0 0
06.AREA_EN_MCC 0~255 31 31 31 31
07.I2C Offset Mean 0~63 16 10 10 10
08.I2C Ana Check 0 0 0 0
09.White Balance(Post)
1.R-Offset(Post) -512~511 0 0 0 0
2.G-Offset(Post) -512~511 0 0 0 0
3.B-Offset(Post) -512~511 0 0 0 0
4.R-Gain(Post) 0~255 0 128 128 128
5.G-Gain(Post) 0~255 0 128 128 128
6.B-Gain(Post) 0~255 0 128 128 128
7.Com_Offset_Sel 0,1 1 0 0 0
8.Com_Gain_Sel 0,1 1 0 0 0
10.ColorTone Cool2
11.ColorTone Cool1
12.ColorTone Normal Refer to Table 3
13.ColorTone Warm1
14.ColorTone Warm2
15. MCM_EN 0,1 1 1 1 1
16. TEMP_DEST 0~255 150 150 150 150
17. CB5_HIGH 0~255 142 143 156 141
18. CR5_HIGH 0~255 125 123 126 124
19. CB5_LOW 0~255 126 126 126 127
20. CR5_LOW 0~255 129 129 129 128
Samsung Electronics 3-7
Alignment & Adjustment
9. Adjust
Initial Values of Input Modes
ITEM Range
TV/AV/SVHS Component PC HDMI
01.Video Mute Time 0~63 5 - - 5
02.Melody Volume 0~63 10 - - 20
03.Dynamic Contrast 0 0 0 0
04.Dynamic Bright 0 0 0 0
05.Dynamic Color 0 0 0 0
06.Dynamic Sharpness 0 0 0 0
07.Standard Contrast 0 0 0 0
08.Standard Bright 0 0 0 0
09.Standard Color 0 0 0 0
10.Standard Sharpness 0 0 0 0
11.Movie Contrast
12.Movie Bright
13.Movie Color
14.Movie Sharpness
15.RF_dB_1 Rf AV
-.Noise Thres1 0~255 20 20
-.LowPassGain1 0~31 7 14
-.BandPassGain1 0~31 12 19
-.HighPassGain1 0~31 6 16
-.PeakStep1 1 1
-.CoringTh1 2 2
-.CoringGain1 8 2
-.PosGain1 1 1
-.NegGain1 1 1
-.V-PosGain1 2 2
-.V-NegGain1 2 2
16.RF_dB_2
-.Noise Thres2 30 40
-.LowPassGain2 5 10
-.BandPassGain2 8 15
-.HighPassGain2 0 8
-.PeakStep2 0 0
-.CoringTh2 12 8
-.CoringGain2 8 10
-.PosGain2 1 1
-.NegGain2 1 1
-.V-PosGain2 1 1
-.V-NegGain2 1 1
3-8 Samsung Electronics
Alignment & Adjustment
Initial Values of Input Modes
ITEM Range
TV/AV/SVHS Component PC HDMI
17.RF_dB_3
-.Noise Thres3 40 60
-.LowPassGain3 0 5
-.BandPassGain3 0 12
-.HighPassGain3 0 4
-.PeakStep3 0 0
-.CoringTh3 26 14
-.CoringGain3 15 16
-.PosGain3 0 0
-.NegGain3 0 0
-.V-PosGain3 0 0
-.V-NegGain3 0 0
10. Test Pattern
01. OSD Pattern
01. Luma Ramp(32 Step)
02. Luma Ramp(128 Step)
03. White 16
04. White 240
05. Color Bar
06. RGB Ramp(32 Step)
07. Cross Hatch(20X20)
02. 1 Channel Pattern
01. Y-Filter
02. V-PosGain
03. V-NegGain
04. V-BpGain
05. V-HfGain
06. V-Peaking-Th1
07. V-Peaking-Th3
03. 2 Channel Pattern
01. Luma Ramp(32 Step)
02. Luma Ramp(128 Step)
03. White 16
04. White 240
05. Color Bar
06. RGB Ramp(32 Step)
07. Cross Hatch(20X20)
11. Chip Debugger : ON/OFF (Select this menu before downloading sub-micom image)
12. Checksum [XXXX]
Samsung Electronics 3-9
Alignment & Adjustment
13. Option PDP : ON/OFF
ITEM Range Initial
01.Pixel Shift 0
-.Pixel Shift Test 0~1 0
-.Number Range 0~1 1
-.Line Range 0~1 1
02.Sound SD delay 0~2 1
03.Sound HD delay 0~2 1
04.Sound DTV delay 0~1 0
05.DDC Write 0~1 0
06.Auto Voltage Adj 5
07.Image Sticking 0
08.Error Mode Check 1
09.Error Code Table 4
10.Patt Sel 0
11.Control Key Lock 0
12.FCRL Con 1
14. Reset : Factory reset (User settings in OSD is initialized.)
3-10 Samsung Electronics
Alignment & Adjustment
3-4 Service Adjustment
3-4-1 White Balance Adjustment
1. W/B Adjustment is required for the following sequence.
Color Calibration (CVBS,Component,PC) W/B Adjustment (HDMI,Component,CVBS)
2. Adjustment Method (Signal equipment : MSPG-925LTH, Measurement equipment : CA210)
3. You can adjust the white ratio in factory mode (Calibration, White Balance menu).
4. Since the adjustment value and the data value vary depending on the input source, you have to adjust these in HDMI,
Component and AV modes.
5. The optimal values for each mode are configured by default. (Refer to Table 2 and 3)
Equipment: CA-210 & Master MSPG925 Generator
Calibration Pattern: Master MSPG925 #24 "Lattice pattern"
W/B adjustment Pattern: Master MSPG925 #16 "ABL pattern"
Use other equipment only after comparing the result with that of the Master equipment.
Set Aging Time: Longer than 30 min.
Pattern Resolution: Given below.
Calibration Available/None and Pattern used for Calibration.
Input mode Calibration Pattern
CVBS IN (Model_#1) Perform in NTSC B&W Pattern #24 Lattice
Component IN (Model_#6) Perform in 720p B&W Pattern #24 Lattice
Perform in VESA XGA (1024x768)
PC Analog IN (Model_#21) Lattice
B&W Pattern #24
HDMI IN None -
White Balance coordinates configuration result. (On the basis of the ABL pattern. The resolutions are given below)
Input mode x y Y(fL) T(K)/MPCD
CVBS IN H/L 265 265 Do not adjust 15000K/-5
(NTSC) L/L 280 285 1.2 10000K/-5
Component IN H/L 265 265 Do not adjust 15000K/-5
(720p, 60Hz) L/L 280 285 1.2 10000K/-5
PC Analog IN None
HDMI IN H/L 265 265 Do not adjust 15000K/-5
(720p, 60Hz) L/L 280 285 1.2 10000K/-5
For PC Mode, perform only calibration and do not perform additional W/B adjustments.
Samsung Electronics 3-11
Alignment & Adjustment
Item Warm 2 Warm 1 Normal Cool1 Cool2
R Cutoff 128 128 128 128 128
G Cutoff 128 128 128 128 128
B Cutoff 128 128 128 128 128
R Gain 128 128 128 128 128
AV
G Gain 128 128 128 128 128
Component
HDMI B gain 128 128 128 128 128
R Cutoff 128 128 128 128 128
G Cutoff 128 128 128 128 128
B Cutoff 128 128 128 128 128
R Gain 128 128 128 128 128
G Gain 128 128 128 128 128
B gain 128 128 128 128 128
R Cutoff 128 128 128 128 128
PC G Cutoff 128 128 128 128 128
B Cutoff 128 128 128 128 128
R Gain 128 128 128 128 128
G Gain 128 128 128 128 128
B gain 128 128 128 128 128
3-12 Samsung Electronics
Alignment & Adjustment
3-4-2 Conditions for Measurement
1. On the basis of toshiba ABL pattern : High Light level (57 IRE)
INPUT SIGNAL GENERATOR : MSPG-925LTH
* Mode NO 1 : 744X484@60 Hz
NO 6 : 1280X720@60 Hz
NO 21 : 1024X768@60 Hz
* Pattern NO 24 : B&W Lattice Pattern
NO 16 : Toshiba ABL Pattern
2. Optical measuring device : CA210 (FL)
Please use the MSPG-925 LTH generator for model HP-R4272
3-4-3 Method of Adjustment
1. Adjust the basic level of Component,PC and CVBS input signals.
a) Enter factory Calibration, confirm the ADC data (Component, PC, AV Modes).
* ADC default value : Table 1
Picture 2-1 B&W Lattice Pattern
* You must perform Calibration in the Lattice pattern before adjusting the White Balance.
* If you perform Calibration in a pattern other than the Lattice pattern, it causes a malfunction and the operation will not finish.
In this case, press the "EXIT" button on the remote control to terminate the operation.
1) Enter Service mode.
2) Apply the NTSC Lattice (No 1) pattern signal to the VIDEO IN port.
3) Press the Source key to switch to "AV/S-VIDEO" mode.
4) After confirming that the Lattice pattern appears, select the "Calibration" menu.
5) Select the "AV Calibration" menu.
6) In "AV Calibration Off" status, press the "" key to perform Calibration.
7) When Calibration is complete, it returns to the high-level menu.
8) Apply the 720p Lattice (No 6) pattern signal to the COMPONENT IN (Y/Pb/Pr) port.
9) Press the Source key to switch to "COMPONENT" mode.
10) After confirming that the Lattice pattern appears, select the "Calibration" menu.
11) Select the "COMP Calibration" menu.
12) In "COMP Calibration Off" status, press the "" key to perform Calibration.
13) When Calibration is complete, it returns to the high-level menu.
14) Apply the 1024x768 Lattice (No 21) pattern signal to the PC IN port.
15) Press the Source key to switch to "PC" mode.
16) After confirming that the Lattice pattern appears, select the "Calibration" menu.
17) Select the "PC Calibration" menu.
18) In "PC Calibration Off" status, press the "" key to perform Calibration.
19) When Calibration is complete, it returns to the high-level menu.
20) All Calibration operations are complete.
Samsung Electronics 3-13
Alignment & Adjustment
2. Adjust the white balance of HDMI,Component and AV Modes.
a) Set the input to the mode in which the adjustment will be made (HDMI, Component, AV adjustment. Do not adjust in PC
Mode.)
* Input signal - AV Mode : Model #1 (744*484 Mode), Pattern #16
- Component/HDMI Mode : Model #6 (1280*720 Mode), Pattern #16
b) Enter the White Balance menu of service mode and confirm the data.
Picture 2-2 Toshiba ABL Pattern
c) Adjust the low light. (Refer to Picture 2-3 for measurement point.)
- Adjust Sub-Bright(SVP) to set the 'Y' value.
- Adjust red offset ('x') and blue offset ('y') to the color coordinates.
* Do not adjust green offset data.
Low light
Measurement point
Picture 2-3 Toshiba ABL Pattern
d) Adjust the high light. (Refer to Picture 2-4 for measurement point.)
- Adjust Sub-Contrast(DNIe) to set the 'Y' value.
- Adjust red gain ('x') and blue gain ('y') to the color coordinates.
* Do not adjust the green gain and sub-contrast (Y) data.
High light
Measurement point
Picture 2-4 Toshiba ABL Pattern
3-14 Samsung Electronics
Alignment & Adjustment
3-4-4 How to adjust White Balance with 10 steps gray pattern
1. If you don't have Toshiba ABL pattern, you can adjust white balance with 10 steps gray scale pattern of Picture 2-5.
2. When you measure Low Light, use 20 IRE portions.
And When you measure High Light, use 70 IRE portion. But if color noise is less in 60 IRE than in 70 IRE, 60 IRE is allowed as
a measure point.
Picture 2-5
3. Perform adjustments 2-b through 2-d from previous page using the 10 step gray scale pattern.
Samsung Electronics 3-15
Alignment & Adjustment
3-5 Software Upgrade
3-5-1 Source Program Download & Generals
1. Downloading boot code
(1) Turn off PDP-TV.
(2) Connect the RS-232 serial cable to the service jack of PDP-TV.
(3) Enter the DOS Mode and move to the directory including "bootdn.bat" and Excute the file.
(4) Turn on PDP-TV.
2. Downloading application code
(1) Turn off PDP-TV.
(2) Connect the RS-232 serial cable to the service jack of PDP-TV.
(3) Enter the DOS Mode and move to the directory including "appdn.bat" and Excute the file.
(4) Power on PDP-TV.
Changing RS-232 serial port and downloaded file
If you want to change serial port, you must edit "bootdn.bat" and "appdn.bat".
"bootdn.bat" sdn 1 0xdeadbbbb rom
execution file file to be downloaded
port number downloading type : boot image
"appdn.bat" sdn 1 0xdeadaaaa ram.z
execution file file to be downloaded
port number downloading type : application image
1. Don' t turn off during downloading.
2. sdn.exe, download file and Batch file should be in the same directory.
3. During Downloading, Hyper Terminal should be turned off.
(2) Enter a new name.
(3) Select a modem port.(com 1 and direct connection.)
(4) Set the bit/second to 115200.
(5) Set the data bit to 8
(6) No parity bit.
(7) Set stop bit to 1.
(8) No flow control.
(9) Save in memory.
(10) At this point, the new hyper terminal is ready.
3-16 Samsung Electronics
Alignment & Adjustment
3-5-2 How to Check the Version of the Program
1. Procedures for checking in the User Menu
- Select the "Setup" menu in the Menu screen
- Place the cursor over the "On" of "Function Help", and press the "Info" key on the remote control
- The version of the program is displayed at the bottom of the Menu screen
Main Program Version
Boot-code Version
2. Procedures for checking in the Factory Menu
When entering Factory Mode, the version of the software is displayed at the bottom of the menu as described on page 3-2.
Samsung Electronics 3-17
Alignment & Adjustment
3-6 Replacements & Calibration
3-6-1 Voltage Adjustment
1. SMPS Panel voltages must be adjusted after changing SMPS-PCB or PDP module.
Range Board Adjustment
Vs 195~215V
SMPS-MAIN
Va 50~70V
Vset 180~210V
Ve 70~110V SMPS-DC/DC
Vscan -180~220V
SMPS-POD SMPS-MAIN SMPS-DC/DC
Voltage
Label
2. A point of adjusting SMPS-MAIN voltage.
SMPS GND TP
TP : Vs (TOP)
Va (BOT)
3-18 Samsung Electronics
Alignment & Adjustment
3. A point of adjusting SMPS-DC/DC.
* Use base chassis of PDP panel as GND point.
Samsung Electronics 3-19
MEMO
3-20 Samsung Electronics