Samsung L64A Schematic
Specifications
Alignment and Adjustments
Troubleshooting
Exploded View and Parts List
Service Item
Block Diagrams
Schematic Diagrams
1.
2.
3.
4.
5.
6.
7.
DLP TV
Chassis : L64A(N_L5)_Robocop-1
Model : HLR4677WX/XAA (HL-R4677W)
HLR5677WX/XAA (HL-R5677W)
SERVICE
Manual
DLP TV CONTENTS
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
© Samsung Electronics Co., Ltd. DEC. 2004
Printed in Korea
AA82-01909A
ELECTRONICS
Specifications
Samsung Electronics
1-1
1. Specifications
Model HL-R4677W HL-R5677W
Voltage AC 120V
Frequency of Operation 60Hz
Power Consumption 230 Watts
Dimensions
(W x D x H)
1094x339x814 mm
43.07x13.35x32.05 inches
1330x396x962.5 mm
52.36x15.59x37.89 inches
Weight 71.65lbs/32.5Kg 93.7lbs/42.5Kg
1-2
Samsung Electronics
MEMO
Alignment and Adjustments
Samsung Electronics 2-1
Factory
DDP1011(L5)
DNIe
ADV7402(M)
ADV7402(S)
uPD64083
MSP4440
CCA
Cinema CCA
SP Actuator
CHECKSUM 0000
OPTION
SERVICE
T_RoboAUS0_XXXX
20XX_XX_XX
T-DTVUCOM5-XXXX
T-RoboAUS1_XXXX
2-1 When Entering Service Mode:
2-1-1 Service Mode Entry Method
1. Turn off the power to make the SETSTAND-BY mode.
2. In order to enter the Service Mode, Press "Mute" → "1” → "8" → "2" → "POWER" button on the Remote Control.
In case entry into SERVICE MODE is unsuccessful, repeat the procedures above.
2-1-2 Initial DISPLAY State in times of SERVICE MODE Switch overs
2-1-2(A) OSD DISPLAY
2-1-2(B) BUTTONS OPERATIONS WITHIN SERVICE MODE
2. Alignment and Adjustments
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
Alignment and Adjustments
2-2 Samsung Electronics
2-1-3 Factory Data
1) DDP1011
No Item Range Default Remark
1 V-Position 0~60 30 Screen upper and lower adjustment
2 H-Position 0~120 60 Screen left right adjustments
3 LAMP SYNC Pulse(P) Pulse(P), Pass(T)
4 INDEX DELAY 0~359 100 Index Delay adjustment
5 SEQ SELECT 0~15 7 Sequence Selection
6 V-FLIP Normal/Flip Normal Vertical Flip Operation
7 H-FLIP Normal/Flip Normal Horizontal Flip Operation
8 GAMMA 0~15 2 Gamma Table Selection
9 SLR OFF/ON OFF SLR Function Selection
10 DMD_BIAS B,C,D,E E DMD Bias bin vlotage selection
11 Lamp Boost 0~63 20 Lamp Boost value selection
12 Lamp Sync Delay 0~4095 0 Lamp Sync delay value selection
13 Test Pattern 0 Test Pattern Selection
Alignment and Adjustments
Samsung Electronics 2-3
2) DNIe
No Item Range Default Remark
1 Test Pattern 0 Test Pattern Selection
2 NR_MAX Y/C 0~255 48 Temporal NR Gain
3 NR_MIN Y/C 0~255 16 Temporal NR Gain
4 Core 0~15 4 NEOnDCE User Set Up
5 B_RATIO 12000 Low level information for the minimum value
6 BLACK_TILT 0~255 120 Black Stretch Area
7 W_RATIO 12000 High level information for the minimum value
8 WHITE_TILT 0~255 200 White Stretch Area
9 GAIN1X 0~63 16 Gain of horizontal high frequency region
10 GAIN1Y 0~63 12 Gain of vertical high frequency region
11 GAIN2X 0~63 8 Gain of horizontal middle frequency region
12 GAIN2Y 0~63 4 Gain of vertical middle frequency region
13 GAIN3X 0~63 1 Gain of horizontal low frequency region
14 NDON ON
ON,OFF Background Noise Detection ON/OFF
Switch
15 CORING_ON ON ON,OFFCoring On/Off
16 SCALE_R 0~255 92 Log Mapping Gain
17 WTE_CSC YCCRGB YCCRGB,YPPRGB
18 DITHER_MOD 0 1,2,3
19 RED_C_COEFF 128 Gain adjustment of the contrast for the Red signal
20 GRN_C_COEFF 128 Gain adjustment of the contrast for the Green signal
21 BLU_C_COEFF 128 Gain adjustment of the contrast for the Blue signal
22 RED_B_COEFF 128
Gain adjustment of the brightness for the Red
signal
23 GRN_B_COEFF 128
Gain adjustment of the brightness for the Green
signal
24 BLU_B_COEFF 128
Gain adjustment of the brightness for the Blue
signal
25 Sub Contrast 0~150 105
Brightness adjustment for the high-light parts of the
screen
26 Sub Brightness 235
Brightness adjustment for the low-light parts of the
screen
Alignment and Adjustments
2-4 Samsung Electronics
4) CCA
No Item Range Default Remark
1 CCA On/Off On CCAOn/Off Selection
2 Red-x 0~32768 651 Red-x adjustment
3 Red-y 0~32768 340 Red-y adjustment
4 Red-Y 0~32768 128 Red-Y adjustment
5 Green-x 0~32768 290 Green-x adjustment
6 Green-y 0~32768 709 Green-y adjustment
7 Green-Y 0~32768 455 Green-Y adjustment
8 Blue-x 0~32768 148 Blue-x adjustment
9 Blue-y 0~32768 53 Blue-y adjustment
10 Blue-Y 0~32768 67 Blue-Y adjustment
11 White-x 0~32768 272 White-x adjustment
12 White-y 0~32768 285 White-y adjustment
13 White-Y 0~32768 703 WHite_Y adjustment
14 WB Spread Spread CCAvalue to all mode
15 Move HDMI Move to the HDMI Mode
16 DRedX 640 Target Red X value for CCA
17 DRedY 330 Target Red Y value for CCA
18 DGreenX 300 Target Green X value for CCA
19 DGreenY 670 Target Green Y value for CCA
20 DBlueX 150 Target Blue X value for CCA
21 DBlueY 60 Target Blue Y value for CCA
22 DCyanX 200 Target Cyan X value for CCA
23 DCyanY 268 Target Cyan Y value for CCA
24 DMagentaX 275 Target Magenta X value for CCA
25 DMagentaY 130 Target Magenta Y value for CCA
26 DYellowX 435 Target Yellow X value for CCA
27 DYellowY 535 Target Yellow Yvalue for CCA
28 D_White_X 291 Target White X value for CCA
29 D_White_Y 300 Target White Y value for CCA
30 DTV/HDMI 0
3) MSP4440
No Item Range Default Remark
1 MDB Effect 0~127 56 Micronas Dynamic Bass
2 SRS Dialog 0~127 64 SRS Dialog clarity adjustment
3 PLL Pilot low adjustment
4 PLH Pilot high adjustment
Alignment and Adjustments
Samsung Electronics 2-5
6) CHECKSUM 0000
Excute Checksum calcuation
5) Cinema CCA
No Item Range Default Remark
1 DRedX 640 Target Red X value for CCA
2 DRedY 330 Target Red Y value for CCA
3 DGreenX 300 Target Green X value for CCA
4 DGreenY 670 Target Green Y value for CCA
5 DBlueX 150 Target Blue X value for CCA
6 DBlueY 60 Target Blue Y value for CCA
7 DCyanX 200 Target Cyan X value for CCA
8 DCyanY 268 Target Cyan Y value for CCA
9 DMagentaX 275 Target Magenta X value for CCA
10 DMagentaY 130 Target Magenta Y value for CCA
11 DYellowX 435 Target Yellow X value for CCA
12 DYellowY 535 Target Yellow Y value for CCA
13 D_White_X 313 Target White X value for CCA
14 D_White_Y 329 Target White Y value for CCA
Alignment and Adjustments
2-6 Samsung Electronics
7) OPTION
No Item Range Default Remark
1 Lamp Clear Initialize lamp using time. Lamp Life is set to zero
2 User Reset All setting is back to the default
3 WB Reset OFF Initialize the White Balance value
4 EER Reset Clear the EEPROM
5 Lamp Life 0h Time for which the lamp has been used
6 AUTO POWER ON/OFF ON
The sets turns on automatically when the power cord
is plugged in
7 DNle DEMO ON/OFF ON DNle Demo function selection
8 Lamp Control Dynamic Dynamic, Always
9 MUTE TIME 600ms
Time which the screen will be black while switching
channels
10 EDID WRITE
11 DELAYMOD ON/OFF OFF Sound Delay Module ON/OFF selection
12 DBG/ANY SEL Debug/AnyNet Select the use of the Aynet jack
13 GEM/GEMIR SEL GemIR/Gemstar Not used
14 226 TEST PATT Xilleon 226 test pattern
15 Set Default Data Initialize Service Data
16 DDC protection OFF DDC write ON/OFF selection
17 LNADefault AUTO LNAsetting OFF/Auto selection
18 PROTECT ON Protection ON/OFF selection
19 WATCH DOG Watch Dog ON/OFF selection
20 WD COUNT 0 Count for Watch Dog event
21 Auto Pgm Range Not used
8) SERVICE
No Item Range Default Remark
1 V-Position 30 Screen upper and lower adjustment
2 H-Position 60 Screen left right adjustment
3 LAMP SYNC Pulse(P)
4 Actuator Gain Actuator Gain adjustment
5 INDEX DELAY 100 Index delay adjustment
6 AUTO COLOR Auto Color function execution
7 CCA CCAmenu
8 Lamp Clear Initialize Lamp using time
9 User Reset All setting is back to the default
Samsung Electronics 2-7
Alignment and Adjustment
2-2 CCA Adjustment Service Methods
CCAAdjustment is needed after changing a light engine or digital board
2-2-1 CCA
In DLP TV, even the same RGB color may differ depending on the light engine. CCA(Color Coordinate Adjustment) corrects the
color to achieve the color accuracy. CCAperforms color correction after measuring and inputting the current light engine's data on
actual color coordinates for displayed Red, Green, Blue, and White color patterns, using a color coordinate measuring equipment.
At this moment, color correction is performed on the basis of previously inputted Desired Color Coordinates and Measured Color
Coordinates. Measured Data on Service Engine's color coordinates is presented on the CCAlabel. Input the label values to per-
form CCAcolor correction.
2-2-2 Condition of the CCA Label upon Receipt of the Service Engine
＊"CCALABEL" describes the measured color coordinates on the light engine.
CCA LABEL
R G B W
X X X X
X X X X
X X X X
Alignment and Adjustments
2-8 Samsung Electronics
2-3 INDEX DELAY Adjustment
1. Turn off the power to make the SETSTAND-BY mode.
2. In order to enter the Service Mode, Press "Mute" → "1” → "8" → "2" → "POWER" button on the Remote Control.
3. Select "Service" on the first display of the Service mode menu.
4. Press the ▲▼(Up or Down) button to move to INDEX DELAY, then press ENTER to select.
5. The INDEX DELAY setup screen (with a red bar at the bottom of the screen) will be displayed.
6. Press the ◀▶ (Left of Right) button to check the red color at the bottom of the screen at its minimum and maximum values of
changing from red to magenta, then adjust to the mean value.
2-4 Projected Image Adjustment
1. Turn off the power to make the SETSTAND-BY mode.
2. In order to enter the Service Mode, Press "Mute" → "1” → "8" → "2" → "POWER" button on the Remote Control.
3. Select "Service" on the first display of the Service mode menu.
4. Select the V-position for vertical positioning and H-position for horizontal positioning by using the ▲▼(up, down) buttons.
※ Do not set the V-position value to 34 or 35.
(Setting to these values will cause horizontal lines on the right side of the screen.)
2-2-3 CCAService Procedures
CCAON/OFF
Red - x : ???
Red - y : ???
Red - Y : ???
Green - x : ???
Green - y : ???
Green - Y : ???
Blue - x : ???
Blue - y : ???
Blue - Y : ???
White - x : ???
White - y : ???
White - Y : ???
WB SPREAD
Move HDMI
CCAMenu in FACTORY Mode
To execute CCAadjustment , perform the following steps:
1. Turn off the power to make the SETSTAND-BY mode.
2. In order to enter the Service Mode, Press "Mute" → "1” → "8" →
"2" → "POWER" button on the Remote Control.
3. Select FACTORY > SERVICE > CCA mode on the SET.
4. Switch the CCAOFF.
5. Input the CCAbasic engine data to the SET.
6. Input the D-White -x, y values in the coordinates per destination.
(if necessary)
7. Select WB SPREAD, then press Enter to activate the WB Spread
SET ensuring that you adjust until you get the OK sign.
After adjusting, exit Factory Mode.
8. When the adjustment is complete, check the picture quality.
＊Attention
Performing CCAis independent on current display's resolution and input signal type if you don't measure color coordinates data.
Measuring color coordinates data requires specific equipment not possessed by service personnel, what makes performing manual
adjustment impossible. Adjusting CCAis applied to all the signal mode. Don't change Desired value because it will be hamful to
the color of the SET.
Alignment and Adjustments
Samsung Electronics 2-9
2-5 POD Channel Board
* Analog Channel Tuning
* Digital(VSB, QAM) Channel Tuning
* 3wire(CLK,Data,Select) control in method tuner control
2-5-1 Assy POD Channel Board
CN600
Transporting video stream
Pin Name PIN No. Pin Name
S_5V 1 32 NRESET
GND 2 31 GND
QAM_SCL 3 30 VSB_SDA
QAM_SDA 4 29 VSB_SCL
GND 5 28 CH_RST
DRX 6 27 CRX
QTX 7 26 ETX
ITX 8 25 CTX
GND 9 24 GND
TS_CLK 10 23 TS_SEL
TS_SYNC 11 22 TS_VAL
TS_D7 12 21 TS_D6
TS_D5 13 20 TS_D4
TS_D3 14 19 TS_D2
TS_D1 15 18 TS_D0
D3.3V 16 17 GND
Pin Name PIN No. Pin Name
S_A30V 1 32 GND
GND 2 31 GND
S_A9V 3 30 TU_CLK
GND 4 29 TU_EN
GND 5 28 TU_DAT
S_A6.5V 6 27 GND
GND 7 26 XTAL_ON_OFF
NTSC_AFT 8 25 GND
GND 9 24 GND
CVBS 10 23 Crystal_CTL
GND 11 22 TU_AGC
SIF 12 21 GND
GND 13 20 GND
GND 14 19 GND
GND 15 18 GND
GND 16 17 GND
CN601
Connecting the control signal between Digital & Channel board
QAM-Demod
8VSB-Demod
Tuner
RF_Splitter
IF_NT_Demod
Alignment and Adjustments
2-10 Samsung Electronics
2-6 ASSY PCB POWER Service Manual
CN804
CN805
＊Supply DC Voltage
CN805
Connecting Power to Analog Board
Pin Name PIN No.
STD 5V 1
GND 2
STD 5V 3
GND 4
12VA 5
GND 6
12VA 7
GND 8
33VA 9
POD-SW 10
Pin Name PIN No. Pin Name
STD 5V 1 2 S-MUTE
GND 3 4 S14.5V
33V 5 6 GND
GND 7 8 S14.5V
POWER-SW 9 10 GND
5.5VB 11 12 5.5VB
GND 13 14 GND
12VB 15 16 12VB
GND 17 18 GND
12VB 19 20 12VB
GND 21 22 GND
GND 23 24 80VB
CN804
Connecting Power to Analog Board
2-6-1 Assy Power Board
Alignment and Adjustments
Samsung Electronics 2-11
2-7 ASSY PCB DIGITAL Service Manual
RS232 - S/W Upgrarde and Anynet
HDMI - A/V Input
* Microprocessor (Generates turn on signal to power board)
* Monitor LED's
* All Digital Video Processing
* Sensor / Switch Controls
* OSD / Menu
* Reset Switch
* Connected with POD channel Board. See the right picture.
2-7-1 Assy Digital Board
Alignment and Adjustments
2-12 Samsung Electronics
Pin Name PIN No. Pin Name
I2SWS_OUTA 1 2 TxDM
I2SSD_OUTA 3 4 RxDM
I2SCLK_OUTA 5 6 GND
GND 7 8 SDA_M5
SDA_PANNEL 9 10 SCL_M5
SCL_PANNEL 11 12 NT_I2S_SCLK
GND 13 14 NT_I2S_LRCLK
NT_I2S_DATA 15 16 USB_SW_UP_P
nMICOM_INIT 17 18 USB_SW_UP_N
nRESET 19 20 S_nRESET
ANALOG_nRST 21 22 DDP_READY
MD_nRESET 23 24 PWRGOOD
LAMP_ERROR 25 26 DTV_Lt
DLP_SYNCVAL 27 28 DTV_Rt
GND 29 30 GND
CN16
Connecting the control signal between Digital & Analog Board
Pin Name PIN No. Pin Name
MD3.3V 1 2 MD3.3V
MD3.3V 3 4 D3.3V
GND 5 6 D3.3V
GND 7 8 GND
STB_6.5V 9 10 GND
GND 11 12 GND
STB_9V 13 14 D5.7V
GND 15 16 D5.7V
STB_30V 17 18 GND
STB_5V 19 20 GND
5VA 21 22 D12V
GND 23 24 GND
GND 25 26 D9V
33V 27 28 GND
CN17
Connecting Power to the Digital Board
Pin Name PIN No. Pin Name
MAIN_Y 1 2 GND
MAIN_C 3 4 GND
SUB_Y 5 6 GND
SUB_C 7 8 GND
DTV_CVBS 9 10 GND
COMP1_Y 11 12 GND
COMP1_Pb 13 14 GND
COMP1_Pr 15 16 GND
COMP2_Y 17 18 GND
COMP2_Pb 19 20 GND
COMP2_PR 21 22 GND
M_CVBS 23 24 GND
M_SIF 25 26 GND
S_CVBS 27 28 GND
S_SIF 29 30 GND
CN21
Connecting the audio / video signal from the rear input terminal
Digital Board Connector Pin
Alignment and Adjustments
Samsung Electronics 2-13
2-8 ASSY PCB ANALOG Service Manual
* Distributes supply voltage from the Power Board to Digital Board
* Transfers Turn-On Command from Digital Board to Power Board
* Encompasses the majority of the Audio Circuit
* Analog Video Switching / Processing
* Analog AudioSwitching / Processing
* 3D Comb Processing
2-8-1 Assy Analog Board
Alignment and Adjustments
2-14 Samsung Electronics
CN275
Connecting USB cable for Software Upgrade
Analog Board Pin Assignment
Pin Name PIN No.
GND 1
5VB 2
USB-NEG 3
USB-POS 4
GND 5
CN249
For Debugging
Pin Name PIN No.
SDA-A 1
SCL-A 2
GND 3
5VA 4
CN250
For Debugging
Pin Name PIN No.
SDA-DMD 1
SCL-DMD 2
GND 3
5VA 4
CN259
Connecting Power to the DMD
Pin Name PIN No.
5VB 1
5VB 2
GND 3
GND 4
12VB 5
12VB 6
GND 7
GND 8
GND 9
CN266
Connecting Power and the Control Signal to the Actuator
Protection Board
Pin Name PIN No.
GND 1
12VB 2
GND 3
SDA-M1 4
SCL-M1 5
GND 6
5VA 7
GND 8
70VB 9
GND 10
Pin Name PIN No. Pin Name
3.3V-ATI 1 2 3.3V-ATI
3.3VB-D 3 4 3.3V-ATI
3.3VB-D 5 6 GND
GND 7 8 GND
GND 9 10 6.5VA-D
GND 11 12 GND
5.7VB 13 14 9VA
5.7VB 15 16 GND
GND 17 18 30VA
GND 19 20 5VA
12VB 21 22 5VA
GND 23 24 GND
9VB 25 26 GND
GND 27 28 33VB
GND 29 30 GND
CN268
Connecting Power to the Digital Board
Alignment and Adjustments
Samsung Electronics 2-15
CN265
Connecting the IR signal
Pin Name PIN No.
IR 1
GND 2
5VA 3
CN261
Connecting front LED indicators
Pin Name PIN No.
5VA 1
KEY-PWR 2
GND 3
LED1 4
LED2 5
LED3 6
CN273
Connecting Side Buttons
Pin Name PIN No.
GND 1
KEY1 2
KEY2 3
GND 4
CN228
Connecting and transmitting Audio signal to Speaker
Pin Name PIN No.
-L-OUT 1
+L-OUT 2
-R-OUT 3
+R-OUT 4
Pin Name PIN No.
FAN-ERROR 1
GND 2
8VA-FNA 3
CN223
Transmitting Video Signal from Side Terminal
Pin Name PIN No.
SIDE-Y 1
SIDE-C 2
GND 3
SIDE-V 4
GND 5
SIDE-L 6
GND 7
SIDE-R 8
GND 9
SIDE-SDET 10
SIDE-VDET 11
CN274
Connecting the Power and Control Signal to the POD Fan
Alignment and Adjustments
2-16 Samsung Electronics
Pin Name PIN No. Pin Name
MAIN_Y 1 2 GND
MAIN_C 3 4 GND
SUB_Y_V 5 6 GND
SUB_C 7 8 GND
DTV_CVBS 9 10 GND
COMP1_Y 11 12 GND
COMP1_Pb 13 14 GND
COMP1_Pr 15 16 GND
COMP2_Y 17 18 GND
COMP2_Pb 19 20 GND
COMP2_Pr 21 22 GND
MTNR_CVBS 23 24 GND
MTNR_SIF 25 26 GND
STNR_CVBS 27 28 GND
STNR_SIF 29 30 GND
CN257
Connecting the audio / video signal from the rear input terminal
Pin Name PIN No. Pin Name
TxDM 1 2 ATI-I2S-WS
RxDM 3 4 ATI-I2S-DATA
GND 5 6 ATI-I2S-CLK
SDA_A 7 8 GND
SCL_A 9 10 SDA_DMD
I2SCLK 11 12 SCL_DMD
I2S_WS 13 14 GND
USB_POS 15 16 I2S_DATA
USB_NEG 17 18 CPU_INIT
SOUND_RESET 19 20 CPU_RESET
DDP_READY 21 22 RESET_D
PWRGOOD 23 24 MD_nRESET
DTV_L 25 26 LAMP_ERROR
DTV_R 27 28 DLP_SYNCVAL
GND 29 30 GND
CN258
Connecting the control signal between Digital and Analog
Pin Name PIN No. Pin Name
5VA 1 2 POWER-MUTE
GND 3 4 S16VB
33VB 5 6 GND
GND 7 8 S16VB
POWER-SW 9 10 GND
5.7VB 11 12 5.7VB
GND 13 14 GND
12VB 15 16 12VB
GND 17 18 GND
12VB 19 20 12VB
GND 21 22 GND
GND 23 24 70VB
CN267
Connecting Power
Pin Name PIN No.
5VA 1
GND 2
5VA 3
GND 4
12VA 5
GND 6
12VA 7
GND 8
30VA 9
POD-SW 10
CN270
Connecting Power
Alignment and Adjustments
Samsung Electronics 2-17
2-9 ASSY PCB DMD Service Manual
* Control Lamp Turn-On
* Powers Color Wheel Motor
* Drives DMD Panel
* Sensor Control
* Attached to optical Engine
2-9-2 Block Diagram
2-9-1 Assy DMD Board
Alignment and Adjustments
2-18 Samsung Electronics
PIN NAME DESCRIPTION
SCTRL_BN/P B channel LVDS serial control
DCLK_BN/P B channel LVDS CLOCK
SCPDI SERIALCONTROLDATAINPUT
SCPDO SERIAL CONTROLDATAOUTPUT
SCPENB SERIAL CONTROL ENABLE
SCPCK SERIAL CONTROL CLOCK
DMD RESETB DMD LOGIC RESET
MBRST(14:0) MIRROR BIAS RESET
MBRST_EXTRA UNUSED MIRROR BIAS RESET
SCR_CLR TEST CLEAR PINS(NORMALGND)
READOUTA(1:0) A-CHANNEL SERIAL DATAOUT DURING SPAM READ TEST OPERATION
READOUTB(1:0) B-CHANNEL SERIAL DATAOUT DURING SPAM READ TESTOPERATION
TP(2:0) MANUFACTORING TEST POINT(NO CONNECTED DURING NORMAL CPERATION)
RSV_A(4:0)/RSV_B(4:0) RESERVED PINS(NORMAL:GND)
EVCC REFERENCE VOLTAGE DURING SPAM READ TEST OPERATION(NORMALGND)
VCC2 MIRROR ELECTRODE VOLTAGE(7.3V)
VCC LOGIC SUPPLY
VSS LOGIC GROUND
2-9-3 DMD Panel Pin Terminal Characteristics Diagram
2-9-4 Description of Terminal Characteristics
※ Remove the heat sink attached to the DMD Board and tighten the screws in four places and then inspect the characteristics of
each pin terminal.
Pin Name Description Pin Name Description
V Voltage : 3.3V T Test Point
V2 VCC2 : 8V ME Mirror Bias Extra
DA AChannel Data Bus [When measured, there should be a waveform] C Clock
DB B Channel Data Bus [When measured, there should be a waveform] P# A,B Channel Positive
No. MBRST# (Mirror Bias Rest) 26V N# A,B Channel Negative
G
The part from the present position to the GND
(The black part is also a GND.)
The vertical lines, which may occur due to improper connections between the panel and the
PCB, occur with intervals of 50 inches(26mm). If vertical lines occur with intervals of more than
26mms, it indicates a failure of the DDP1011 IC itself. If they occur with intervals of less than
26mm, it means that more than two pins have bad connections.
DA,DB output wave
[Screen:WHITE]
Alignment and Adjustments
Samsung Electronics 2-19
No Description Key Point Remark
1
1) When the power cord is plugged in,
2) DC 380V is automatically supplied to the ballast.
Check whether the DC380V
power is supplied to the ballast.
2
1) When the power key is pressed via the remote control, the micom
of the digital board outputs high (5V) PWR signals.
2) The power board operates normally.
5V and 12V are supplied to the DMD CN105 terminal.
Check whether 5V and 12V are
supplied to the CN105 terminal.
* 12V must be supplied to operate the motor.
(The voltage of the motor driving power is 12V.)
3
1) The MTR Reset signal is supplied to the R161 terminal of the
motor IC101 from the micom on the digital board and then the
motor starts to drive.
2) If the color wheel rotates for a certain time and then stops, check
whether the color wheel sensor is normal.
(Check the waveform on the No.2 terminal below CN102.)
After the set is powered on, check
whether 5V is detected on pin
No.49 of IC101.
→ After a while, the sound
generated by the rotating color
wheel is heard.
* If 5V is not detected, the motor will not operate.
4
1) Check whether the signal (SCI: STARTCONTROL INPUT)
that turns on lamp #2 of CN109 on the DMD board is high (5V).
Check whether CN109 #2 signal
is 5V.
* When SCI is high (5V), the lamp litz of CN109
is low (0V).
* CN109 #2 terminal voltage changes to pulse
wave form 14 seconds after (for 50 inch TV)
the time that the voltage is 5V.
* When about 4 seconds have passed after
changing to pulse waveform, the screens are
displayed on the set.
5 1) Method for checking whether the DDP1010 IC RESET is normal.
If the voltage between R254 and
R255 is 3V, it is normal.
2-9-5 Engine Failure Inspection Flow Chart for the DMD Board
2-9-6 Output Voltage States of the DMD Board Parts
Output terminal
Wave form for
RA101,102,103,104
Alignment and Adjustments
2-20 Samsung Electronics
2-10 Optical Science
2-10-1 Engine
2-10-2 Optical Specification
Parameter Nominal Value Unit Connent
Brightness 450 nits
6-segment color wheel, TI development board,
no spoke light recapture, reference lamp
Uniformity (ANSI)
- Typical
- Minimal
+/- 15
+/- 25
%
%
+ : brightest of 13 ANSI points/average of 9 points
- : darkest of 13 ANSI points/average of 9 points
Contrast full on/off
- Typical
1000 to 1 n.a.
6-segment color wheel, TI development board,
no spoke light recapture
Color Temperature 7,500 K (Warm 1) n.a. measured in image center
F-number
≥ 2.6
n.a. design value
Projection distance at 50"
screen size
680 mm
projection distance : distance from vertex of front
lens to projection screen
Exit pupil position 48.69 mm design value, distance to vertex of front lens
F.O.V (Field of View) 84 deg. design value
Panel size 17.5104x9.8496 mm Diamond Pixel Configuration
Lateral color aberration
@ 50" (R-G ; B-G)
≤ 7
≤ 7
㎛
㎛
Desion value
440/546/640 ㎛
TV distortion
- in horizontal direction
- in vertical direction
≤│0.3│
≤│0.3│
%
%
Pin Cushion or Barrel condition
folding angle 62 deg. mechanical design value
Lamp Module
Color Wheel Cover
DMD Module
Optical Module
Alignment and Adjustments
Samsung Electronics 2-21
2-11 Service
2-11-1 Service Hint #1 - DMD Board Assy
2-11-2 Service Hint #2 - ColorWheel Assy
Problem : PIXEL DEFECT, VERTICALLINE
Solution : Change the DMD Board assembly
Problem : INCREASED NOISE
Solution : Change the Color wheel module
G
Alignment and Adjustments
2-22 Samsung Electronics
2-11-3 Service Hint #3 - LAMP Assy
Problem : LOW BRIGHTNESS or No Power
Solution : Change the Lamp module
Alignment and Adjustments
Samsung Electronics 2-23
2-12 Tilt the Screen
Remove the bottom cover.
Remove the cover of the
signal terminal.
Fix the safety switch on the right with tape
so that the set can be turned on after
removing the bottom cover.
Alignment and Adjustments
2-24 Samsung Electronics
Remove the four screws on the upper and lower part
of the power board, and remove the whole assembly
without removing the cable.
Alignment and Adjustments
Samsung Electronics 2-25
Place the power board on the back, and
keep the cables connected.
Remove the two screws on the left and the one screw
on the bottom right, without removing the engine.
※ Even when those screws are removed, the board
does not separate, it can be moved within the
adjustable range because there is a spring screw
at the center that holds it.
Fix the safety switch on the right with tape
so that the set can be turned on after removing
the bottom cover.
Alignment and Adjustments
2-26 Samsung Electronics
Turn on the TV to send signals.
Then, adjust the screen position,
by holding both of the upper corners
of the DMD board.
※ When adjusting the screen, it is better for two people to work together.
On person should direct the picture position while the other person looks
at the screen.
※ The movement direction of the board and the picture are opposite.
- When the board is lifted upward, the screen descends down.
- When it is tilted to the left, the screen tilts to the right.
※ When the picture adjustment is completed:
First, tighten the two screws on the left of the DMD board
and then slowly tighten the one screw on the bottom right.
Be careful not to touch the board while screwing.
(When using an electric-powered screwdriver, be careful that
the torque is not too high.)
Loading...