Daewoo DLV-32C7SMB User manual

Caution
: In this Manual, some parts can be changed for improving. their
performance without notice in the parts list. So, if you need the
latest parts information, please refer to PPL(Parts Price List)in
Service Information Center.
Service Manual
LCD TV
CHASSIS :
Model :
S/M NO. : TSL300VEF1
DLV-32C7SMB
DLV-37C7LMB
DLV-42C7LMB
MAR. 2007
SL-300V

Contents
1. Safety Precaution 3
2. Preliminary Troubleshooting 4
3. Product Specification 5
1) Standard of Product 5
2) Available Input Signal 6
3) Available PIP Mode 6
4. Service Remote Controller 7
1) Key Arrangement 7
2) EEPROM Data 8
5. Block Diagram 11
6. Hardware Troubleshooting : Digital Board 12
7. Hardware Troubleshooting : SMPS 16
1) FEL-3237A : DLV-32C7SMB, DLV-37C7LMB 16
2) FEL-42C1 : DLV-42C7LMB 18
8. Bill Of Materials 20
1) DLV-32C7SMB 20
2) Differental Materials Besides Mechanical Parts 29
9. How to S/W Upgrade Tools 30
1) Requirements 30
2) Outline of the S/W upgrade tool, which is DTV_Updater.exe 30
3) How to upgrade decoder of LCD TV 31
4) How to upgrade PIC micom of LCD TV 35
10. Schematics : Digital Board 40
11. Schematics : SMPS 49
1) FEL-3237A : DLV-32C7SMB, DLV-37C7LMB 49
2) FEL-42C1 : DLV-42C7LMB 50
12. Mechanical Development Figure 51
1) DLV-32C7SMB 51
2) DLV-37C7LMB 52
3) DLV-42C7LMB 53
-2-

1. Safety Precaution
-3-
(1) When moving or laying down a LCD Set, at least two people must work together. Avoid any
impact towards the LCD Set.
(2) Do not leave a broken LCD Set on for a long time. To prevent any further damages, after
checking the condition of the broken Set, make sure to turn the power (AC) off.
(3) When opening the BACK COVER, you must turn off power (AC) to prevent any electric
shock.
(4) When loosening screws, check the position and type of the screw. Sort out the screws and
store them separately for reassembling. Because screws holding PCBs are working as
electric circuit grounding, make sure to check if any screw is missing when assembling /
reassembling. Do not leave any screws inside the set.
(5) A LCD Set contains different kinds of connector cables. When connecting or disconnecting
cables, check the direction and position of the cable beforehand.
(6) Connect/disconnect the connectors slowly with care especially FFC (film) cables and FPC
cables. Do not connect or disconnect connectors instantaneously with force, and handle
them carefully for reassembling.
(7) Connectors are designed so that if the number of pins or the direction does not match,
connectors will not fit. When having problem in plugging the connectors, check their kind,
position, and direction.

2. Preliminary Troubleshooting
-4-
1) LCD TV does not response or remote controller does not work.
- Check the power cord to be plugged.
- Check the battery of the remote controller.
2) Sound is discontinuous or broken sometimes.
- Check if [SOUND] -> [AVC] is [ON].
- Set the sound effect into 'F Mono'.
- Set the [SOUND] -> [DTV Volume] into proper value.
- [DTV Volume] is enabled only in digital program.
3) Picture of digital program is sometimes broken and sound is discontinuous.
- Digital program has a little problem because of signal receiving status.
- Check if the RF cable is correctly connected.
- Ask for the broadcasting station if the RF cable connection has no problem.
4) Picture of analog program is noisy.
- Check the RF cable connection.
- Check if [Picture] -> [Noise Reduction] is ON.
- Change the [Install] -> [Programme Setup] -> [Fine] value.
5) Sound is not generated in HDMI mode.
- Reconnect HDMI jack.
- DVI signal has no sound. Check the output signal of device to be connected to LCD TV.
- If you want to use DVI-HDMI cable, you should also connect audio cable into the LCD TV.
6) In spite of 'Auto Setup', picture size is not completely adapted to the screen.
- Check if the input signal is available.
- Ensure that the desktop has no black area.
- Some errors (picture position problem) will be occurred according to certain video card.
In this case, you should adjust 'Frequency' control.
7) In spite of 'Auto Setup', picture is not clear.
- Adjust 'Phase' control.

3. Product Specification
-5-
1) Standard of Product
Owing to our policy of continuous improvement, specifications may change.
Features DLV-32C7SMB DLV-37C7LMB DLV-42C7LMB
LCD Panel Panel Model LTA320WT-LF2 LC370WX1-SL01 LC420WX5-SLA1
Screen Size 81 cm 93 cm 106 cm
Aspect Ratio 16 : 9 16 : 9 16 : 9
Resolution 1366 X 768 1366 X 768 1366 X 768
(WXGA) (WXGA) (WXGA)
Pixel Pitch 0.51075 mm 0.60000 mm 0.68100 mm
Contrast Ratio 5000 : 1 (MAX) 5000 : 1 (MAX) 5000 : 1 (MAX)
Brightness 550 cd/m2500 cd/m2500 cd/m2
TV System Receiving DVB-T DVB-T DVB-T
System PAL-B/G PAL-B/G PAL-B/G
PAL-B/H PAL-B/H PAL-B/H
NTSC (AV) NTSC (AV) NTSC (AV)
LVDS Cable FI-E30S FL-X30SSL-HF FL-X30SSL-HF
LVDS B+ +5V +12V +12V
Input Connector RF 50 Ohm Coaxial 50 Ohm Coaxial 50 Ohm Coaxial
S-Video / Video 2 2 2
Component RCA X 2 RCA X 2 RCA X 2
PC RGB D-Sub X 1 D-Sub X 1 D-Sub X 1
PC Audio 3.5 mm Mini - Jack 3.5 mm Mini - Jack 3.5 mm Mini - Jack
HDMI 1 1 1
Output SPDIF Optical - Jack Optical - Jack Optical - Jack
Connector Headphone X X X
Monitor - out 1 1 1
Sound Output Max. 10W 10W 10W
Power Module Model FEL-3237A FEL-3237A FEL-42C1
Power Max. 155W 195W 198W
Consumption Power Source 220-240V~ 220-240V~ 220-240V~
50-60Hz 50-60Hz 50-60Hz
Dimension Set Dimension
806 x 628.5 x 240 mm 940 x 720 x 328.7 mm 1037 x 788.7 x 328.7 mm
(W x H x D) (with stand)
Set Dimension
806 x 574.5 x 114 mm 940 x 655 x 130 mm 1037 x 723.8 x 124.9 mm
(without stand)
Wall Mount Dimension
315 x 235 x 50 mm 315 x 235 x 50 mm 698 x 460 x 46.6 mm
Hall Size 100 x 200 screw ø 4mm 100 x 200 screw ø 4 mm 400 x 600 screw ø 6 mm

Product Specification
-6-
2) Available Input Signal
INTERFACE SOURCE VF INTERFACE SOURCE VF
RF PAL-B/G, B/H 50Hz HDMI 640x480 60Hz
DVB-T 50Hz 640x480 75Hz
VIDEO PAL-B/G, B/H 50Hz 800x600 60Hz
PAL-60 60Hz 800x600 72Hz
NTSC-M 60Hz 800x600 75Hz
NTSC-443 60Hz 1024x768 60Hz
S-VIDEO PAL-B/G, B/H 50Hz 1024x768 70Hz
PAL-60 60Hz 1024x768 75Hz
NTSC-M 60Hz 1280x1024 60Hz
NTSC-443 60Hz 1360x768 60Hz
COMPONENT 480i 60Hz 480p 60Hz
480p 60Hz 576p 50Hz
576i 50Hz 720p 50Hz
576p 50Hz 720p 60Hz
720p 50Hz 1080i 50Hz
720p 60Hz 1080i 60Hz
1080i 50Hz
1080i 60Hz
PC 640x480 60Hz
640x480 75Hz
800x600 60Hz
800x600 72Hz
800x600 75Hz
1024x768 60Hz
1024x768 70Hz
1024x768 75Hz
1280x1024 60Hz
1360x768 60Hz
3) Available PIP Mode
MODE Analog RF Digital RF VIDEO 1 VIDEO 2 COMP 1 COMP 2 HDMI PC
ATV X X X X OOXX
DTV X X OOOOXX
VIDEO 1 X OXXXXXX
VIDEO 2 X OXXXXXX
COMP 1 OOXXXXXX
COMP 2 OOXXXXXX
HDMI X XXXXXXX
PC XXXXXXXX

4. Service Remote Controller
-7-
1) Key Arrangement

ChSet
Recall
HEAT-RUN
SVPPX
MPEG
Pattern
MISC
Volume
PQ
Hotel Lock
W/B
PreScale
Reset

Service Remote Controller
-8-
2) EEPROM Data
Key Content Default Value Description
S2 ChSet Panel Model SS32 Current LCD Panel
EDID & Ch Set 0 EDID & CH Update
S3 Volume Volume Test 0 Don't Care
S4 SVPPX PAL Sub Brt 0x20 ATV Bright Control
PAL Sub Cont 0x80 ATV Contrast Control
AV Sub Brt 0x20 Video Bright Control
AV Sub Cont 0x80 Video Contrast Control
Video Sub Cb Sat 0x80 Video Cb Color
Video Sub Cr Sat 0x80 Video Cr Color
Video Sub Hue 0x0 Video Hue
Video YC Delay 0x0 Video YC Delay
Pedestal ON Pedestal Level ON/OFF
Chroma AGC 0x8A Sub Carrier AGC
CVBS AGC ON CVBS AGC
Anti-alias OFF Anti-alias ON/OFF
PC G Clamp 0x44 PC G Clamp Level Control
PC B Clamp 0x44 PC B Clamp Level Control
PC R Clamp 0x44 PC R Clamp Level Control
PC G Gain 0x50 PC G Gain Control
PC B Gain 0x50 PC B Gain Control
PC R Gain 0x50 PC R Gain Control
Com 480i Y Clamp 0x30 480i Y Clamp Level Control
Com 480i Pb Clamp 0x200 480i Pb Clamp Level Control
Com 480i Pr Clamp 0x200 480i Pr Clamp Level Control
Com 480i Y Gain 0x50 480i Y Gain Control
Com 480i Pb Gain 0x50 480i Pb Gain Control
Com 480i Pr Gain 0x50 480i Pr Gain Control
Com HD Y Clamp 0x30 480p~ Y Clamp
Com HD Pb Clamp 0x200 480p~ Pb Clamp
Com HD Pr Clamp 0x200 480p~ Pr Clamp
Com HD Y Gain 0x50 480p~ Y Clamp
Com HD Pb Gain 0x50 480p~ Pb Clamp
Com HD Pr Gain 0x50 480p~ Pr Clamp
Sync Threshold 0x0 Component Sync Slicing Level Control
S5 PQ Dp B/L Cont 0 Black & White Contrast
Main CVBS Cont 128 Main Picture CVBS Contrast
Main CVBS Bright 128 Main Picture CVBS Brightness
Main DTV Cont 128 Main Picture DTV Contrast
Main DTV Bright 112 Main Picture DTV Brightness
Main HDMI Cont 128 Main Picture HDMI Contrast
Main HDMI Bright 128 Main Picture HDMI Brightness
Main Comp PC Cont 130 Main Picture COMP & PC Contrast

Service Remote Controller
-9-
Key Content Default Value Description
Main Comp PC Bright 120 Main Picture COMP & PC Brightness
PIP CVBS Cont 128 Sub Picture CVBS Contrast
PIP CVBS Bright 138 Sub Picture CVBS Bright
PIP DTV Cont 138 Sub Picture DTV Contrast
PIP DTV Bright 128 Sub Picture DTV Brightness
PIP COMP Cont 128 Sub Picture COMP Contrast
PIP COMP Bright 128 Sub Picture COMP Brightness
Dp Hue 64 Main Picture Tint Control
Main V Delay 8 Main Picture Cr Delay
Main U Delay 8 Main Picture Cb Delay
Sub V Delay 8 Sub Picture Cr Delay
Sub U Delay 8 Sub Picture Cb Delay
Peaking 38 Peaking Control
APL Enable ON APL Enable
APL Luma Factor 192 APL Luma Factor
APL Gain 128 APL Gain
Filter 0 Band Pass Filter
Gamma Enable ON Gamma Enable
S6
Hotel Lock CH Preset Lock OFF Auto Programme function ON/OFF
Volume Max 100 Max Volume
AV Lock OFF AV Lock ON/OFF
Child Lock OFF Child Lock ON/OFF
RF Auto YES Auto shutdown without signal at RF
S7 MPEG DTV V Size 100 Don't Care
DTV H Size 93 Don't Care
DIAHighThreshold Y
0Don't Care
DIAHighThreshold C 0Don't Care
DIALowThreshold Y
0Don't Care
DIALowThreshold Y
0Don't Care
S8 WB Bias R 31 R Bias
Bias G 31 G Bias
Bias B 34 B Bias
Gain R 22 R Gain
Gain G 32 G Gain
Gain B 30 B Gain
Sub Brt 31 Don't Care
Sub Cont 0 Don't Care
Contrast-R 1.039 Don't Care
Contrast-G 1.078 Don't Care
Contrast-B 1.070 Don't Care
S9
PreScale SC Pscale 22 Don't Care
FM Pscale 24 Don't Care

Service Remote Controller
-10-
Key Content Default Value Description
Stereo ID 10 Don't Care
Dimming(LCD) 255 Don't Care
SSC Enable ON Spread Spectrum ON/OFF
SSC Delta 0 Don't Care
SSC posi 0 Don't Care
SSC nega 0 Don't Care
BBE Level 48 BBE Level
MVOICE Level 96 MVOICE Level
Sound Delay(ms) 40 Sound Delay
S10 MISC Panel Model SS32 Current LCD Panel
EDID Update OFF EDID Update
Model SL-300V Chassis
S/W Version SL-300V_##_####_L######V#DP Decoder S/W Version
Micom Version SL-300V_L######V##M PIC Micom S/W Version
Micom Update OFF Micom Update Mode
OS_DbgPrintf OFF Debugging Mode
Digital Signal Status OFF Digital Signal Status
Digital Index Status OFF Don't Care
RF Software Update OFF RF S/W Update Mode
S1 HeatRun Enable OFF HeatRun Enable Mode
Digital Index level 0 Don't Care
S11 Pattern Test Pattern 0 Don't Care
S12 Reset Factory Reset 0 Factory Reset
Eeprom Reset 0 EEPROM Reset
•[S12] -> [Reset] -> [Eeprom Reset] : EEPROM has default value.
•[S10] -> [MISC] -> [Panel Model] : This data should be set according to each model
: DLV-32C7SMB -> SS32
: DLV-37C7LMB -> LG37
: DLV-42C7LMB -> LG42
•[S5] -> [PQ] -> [Brightness & Contrast] : This data can be changed only in each mode.
: For example, [Main DTV Cont] value can be
changed only in DTV mode.
•[S6] -> [Hotel Lock] -> [CH Preset Lock] :
ON means [Auto Programme] can not be functioning.
•[S6] -> [Hotel Lock] -> [Volume Max] : This value will be max volume of user control.
•[S6] -> [Hotel Lock] -> [AV Lock] : ON means the unit will be locked at AV1.
•[S6] -> [Hotel Lock] -> [Child Lock] : ON means the side buttons will not be functioning.
•[S6] -> [Hotel Lock] -> [RF Auto] : ON means the unit will be turned off automatically
after 30 minutes without signal at RF mode.

5. Block Diagram
-11-
Signal Block Diagram : ZORAN

6. Hardware Troubleshooting : Digital Board
-12-
1) In spite of sound output, the screen is black.
1.1 In case of ATV, DTV, VIDEO and COMPONENT mode.
START
Check the SMPS
and input voltage
IC501 Problem.
Replace the Main PCB
IC501 Problem.
Replace the Main PCB
1) TV mode : Check the path from Pin 8 of TU101 to Pin Y4
of IC501
2) Component mode : Check the path from input jack to Pin
V6, W9, Y8(Comp 1) and W6, Y9, W8(Comp 2) of IC501
3) Video mode : Check the path from input jack to Pin
Y10(Video 1) and V8(Video 2) of IC201
Perhaps Connector and Cable
Problem.
Replace the Main PCB
Check
the input power of
IC501 is correct
Yes
No
Check
the LVDS connector and cable
is correct
Is the input signal of IC501 normal?
Check
the LVDS signal output of IC501 is correct
(Pin A14, B14, A15, B15, A16, B16, A17,
B17, A18, B18, A19, B19)
No
Yes
No
Yes
No
Yes

Hardware Troubleshooting : Digital Board
-13-
1.2 In case of PC and HDMI mode
START
Check the input resolution
of external device
IC501 Problem.
Replace the Main PCB
IC501 Problem.
Replace the Main PCB
1) PC mode : Check the path from Jack to Pin Y7, W10 and
U8
2) HDMI mode : Check the path from input jack to Pin M2,
M1, N2, N1, P2, L2, L1, U11 and T1 of IC501
Perhaps Connector and Cable
Problem.
Replace the Main PCB
Check
PC/HDMI resolution to
available resolution in
LCD TV
Yes
No
Check
the LVDS connector and cable
is correct
Is the input signal of IC501 normal?
Check
the LVDS signal output of IC501 is correct
(Pin A14, B14, A15, B15, A16, B16, A17,
B17, A18, B18, A19, B19)
No
Yes
No
Check the SMPS and
input voltage
Check
the input power of
IC501 is correct
Yes
No
Yes
No
Yes

Hardware Troubleshooting : Digital Board
-14-
1.3 In case of DTV mode
START
Select Air/Cable in Ant. Set correctly
Check the SMPS and input voltage
IC501 Problem.
Replace the Main PCB
Check the path from
TU101 to IC101
Check
1. The SNR is over 15dB
2. “Get 1SecSer” is “0”
The signal quality is poor.
1. Check the ANT or its connection is correct
2. Consult a local installer.
Perhaps Connector and Cable
Problem.
Replace the Main PCB
Check
the “Ant. Set” is correct
in Menu
Yes
No
Check
the LVDS connector and cable
is correct
Check
the LVDS signal output of IC501 is correct
(Pin A14, B14, A15, B15, A16, B16, A17,
B17, A18, B18, A19, B19)
Yes
No
No
Yes
Check
the input power of
IC501 is correct
No
No
Is “Lock status” “1(LOCK)”
when “Digital signal status” is
“on” in Service mode S10?
Yes
Check the path from IC301 to IC501
Yes
Does
digital signal input from IC301
to IC501
No
Check the path from IC301 to IC501
Yes
Does
TS signal input from IC101
to IC301
No
Yes
No

Hardware Troubleshooting : Digital Board
-15-
2) In spite of picture display, the sound is not generated.
START
1. Confrim AC connection
2. Confrim Power S/W on
3. Check Video or other PCBs
Check the connection of jack
Does screen appear?
Yes
No
Yes
Is the Sound input Jack
correctly connected?
No
Check the connection of speaker
Yes
Is the speaker correctly
connected?
No
Check the SMPS and input voltage
Yes
Check
the input power of IC602 is normal
(Pin 4, 7, 12, 15)
No
Check the path from IC602 to Speaker
No
Check
the signal output of IC602 is normal
(Pin 8, 9, 16, 17)
Yes
Perhaps IC602 problem.
Replace main PCB
No
No
Check
the signal output of IC601 is normal
(Pin 31, 33)
Yes
Perhaps IC601 problem.
Replace main PCB
Digital TV mode : Check the path from Pin 7
of IC601 to Pin T2 of IC301
HDMI mode : Check the path from Pin 21
of IC601 to Pin V12 of IC501
Analog TV mode : Check the path from Pin 55
of IC601 to Pin 10 of TU101
Video, Component mode : Check the path from
each Pin of IC601 to each jack
Check
the input signal of IC601is
normal
Yes

7. Hardware Troubleshooting : SMPS
-16-
1) FEL-3237A : DLV-32C7SMB, DLV-37C7LMB
'CHECKING FLOW ABOUT INFERIOR SMPS' (MODEL NAME : FEL-3237A)
PAGE : 1/2
1. Stand-by 5V is working out.
A. Can you check In-put voltage(DC) of the capacitor(Location No. : C22)?
2. MAIN Out-put voltage is working out but Stand-by 5V is working.
A. Can you check that it is working normal at Power On after dischanging for 1 minute from Power Off?
YES : It's protection due to out-put short of the moment through worker's carelessness.
NO : Checking 2.1 item.
A. Is Power On signal(3.3V) supplied to Base of Q4?
YES
YES 1.1 Checking open and short of Out-put side wire cable.
NO
1.2. Checking open and short of the around parts that was connected IC3(STR-A6151).
(Location No. : R4, R5, D4, D5, D7)
1.3. Checking open and short of IC3's each pins.
1.4. Checking open and short of 5V's Out-put diode.
(Location No. : D13)
NO
1.5. Can you check the Fuse(F1) condition(open and short)?
YES : Checking 1.2 item after changing FUSE. NO : Checking 1.6 item.
1.6. Checking open and short of BD1, BD2.
YES : Changing BD1, BD2.
NO : Checking open and short of Z1, LF1, LF2, C1, C2.
A. Can you check that Vcc voltage of IC3 was supplied from DC15V to DC27V?
YES
NO
2.1. Can you check the D4's condition(open and short)?
YES : Changing D4. NO : Checking 2.2 item.
2.2. Is Relay connected?
YES : Checking 2.3 item. NO : Changing Relay.
2.3. Can check the voltage(AC 400V) of AC rectifying side C23?
YES : Checking 2.5 item.
NO : Checking 2.5 item after checking the conditions(open and short) of the around
parts that was connected IC1. (Location No. : R14, R65, Q1, D1, D23, D12, IC1)
YES 2.4. changing Q4.
NO
B. Can you check the Q4's condition(open and short)?
C. Can you check that Vcc voltage of IC2's No.12pin was supplied from DC10V to DC12V?
NO
2.5. Can you see the square wave(400mV, 32kH) of Q2's source side when DC 13V
was supplied to IC2's No.12pin from DC POWER SUPPLY?
(CAUTION : Test do it after AC Power Off)
YES : Checking 2.1 item after checking diode's condition(open and short) of Main Out-put side.
(Location No. : D17, D18, D19, D16, D15, D14)
NO : Checking open and short of the around parts that was connected IC2.
(Location No. : Q2, Q3, D25, D26, D24, R31, R32, R35, R36, R38, D9, D10, C17)
YES 2.6. Checking open and short of MAIN BOARD.
2.7. Checking open and short of MAIN BOARD.

Hardware Troubleshooting : SMPS
-17-
'CHECKING FLOW ABOUT INFERIOR SMPS' (MODEL NAME : FEL-3237A)
PAGE : 2/2
3. 5V's Out-put voltage is measured too high or low.
A. Checking open and short of IC7.
B. Checking open and short of R24, R25.
C. Checking open and short of IC6.
4. 5V's Out-put voltage is work with intermittent mode.
A. Is R5's condition good from open and short?
YES : changing R5. NO : Checking 1.3 and 1.4 items.
(Checking open and short of MAIN BOARD if that 1, 3 and 1.4 items are no problem.)
5. Out-put voltage(DC12v, 24v, 30v) is measured too high.
A. Checking open and short of IC5.
B. Checking open and short of R44, R43.
C. Checking open and short of IC4.
6. Out-put voltage(DC12v, 24v, 30v) is measured too low.
A. Checking open and short of IC5.
B. Checking open and short of R44, R43.
C. Checking 2.3 item.

Hardware Troubleshooting : SMPS
-18-
2) FEL-42C1 : DLV-42C7LMB
'CHECKING FLOW ABOUT INFERIOR SMPS' (MODEL NAME : FEL-42C1)
PAGE : 1/2
1. Stand-by 5V is working out.
A. Can you check In-put voltage(DC) of the capacitor(Location No. : C22)?
2. MAIN Out-put voltage is working out but Stand-by 5V is working.
A. Can you check that it is working normal at Power On after dischanging for 1 minute from Power Off?
YES : It's protection due to out-put short of the moment through worker's carelessness.
NO : Checking 2.1 item.
A. Is Power On signal(3.3V) supplied to Base of Q4?
YES
YES 1.1 Checking open and short of Out-put side wire cable.
NO
1.2. Checking open and short of the around parts that was connected IC3(STR-A6151).
(Location No. : R4, R5, D4, D5, D7)
1.3. Checking open and short of IC3's each pins.
1.4. Checking open and short of 5V's Out-put diode.
(Location No. : D13)
NO
1.5. Can you check the Fuse(F1) condition(open and short)?
YES : Checking 1.2 item after changing FUSE. NO : Checking 1.6 item.
1.6. Checking open and short of BD1, BD2.
YES : Changing BD1, BD2.
NO : Checking open and short of Z1, LF1, LF2, LF3, C1, C2.
A. Can you check that Vcc voltage of IC3 was supplied from DC15V to DC27V?
YES
NO
2.1. Can you check the D4's condition(open and short)?
YES : Changing D4. NO : Checking 2.2 item.
2.2. Is Relay connected?
YES : Checking 2.3 item. NO : Changing Relay.
2.3. Can check the voltage(AC 400V) of AC rectifying side C23?
YES : Checking 2.5 item.
NO : Checking 2.5 item after checking the conditions(open and short) of the around
parts that was connected IC1. (Location No. : R14, R65, Q1, D1, D23, D12, IC1)
YES 2.4. changing Q4.
NO
B. Can you check the Q4's condition(open and short)?
C. Can you check that Vcc voltage of IC2's No.12pin was supplied from DC10V to DC12V?
NO
2.5. Can you see the square wave(400mV, 38kH) of Q2's source side when DC 13V
was supplied to IC2's No.12pin from DC POWER SUPPLY?
(CAUTION : Test do it after AC Power Off)
YES : Checking 2.1 item after checking diode's condition(open and short) of Main Out-put side.
(Location No. : D17, D18, D19, D16, D15, D14)
NO : Checking open and short of the around parts that was connected IC2.
(Location No. : Q2, Q3, D19, D20, D8, R31, R32, R35, R36, R38, D9, D10, C15)
YES 2.6. Checking open and short of MAIN BOARD.
2.7. Checking open and short of MAIN BOARD.

Hardware Troubleshooting : SMPS
-19-
'CHECKING FLOW ABOUT INFERIOR SMPS' (MODEL NAME : FEL-42C1)
PAGE : 2/2
3. 5V's Out-put voltage is measured too high or low.
A. Checking open and short of IC7.
B. Checking open and short of R24, R25.
C. Checking open and short of IC6.
4. 5V's Out-put voltage is work with intermittent mode.
A. Is R5's condition good from open and short?
YES : changing R5. NO : Checking 1.3 and 1.4 items.
(Checking open and short of MAIN BOARD if that 1, 3 and 1.4 items are no problem.)
5. Out-put voltage(DC12v, 24v, 30v) is measured too high.
A. Checking open and short of IC5.
B. Checking open and short of R44, R43.
C. Checking open and short of IC4.
6. Out-put voltage(DC12v, 24v, 30v) is measured too low.
A. Checking open and short of IC5.
B. Checking open and short of R44, R43.
C. Checking 2.3 item.

8. Bill Of Materials
-20-
ZZ100 48B5655B02 TRANSMITTER REMOCON R-55B02 (AAA)
ZZ110 PTACPWG207 ACCESSORY AS DLV-32C3SMBS
60 4850Q01210 BATTERY LR03 AAA ALKALINE
M212 4852176101 COVER BOTTOM ABS BK
M681 4856819300 CLAMP WIRE NYLON 66
M821 4858213803 BAG INSTRUCTION L.D.P.E TO.05X250X400(+20)
M861 48586210E1 MANUAL INSTRUCTION ENGLISH
P801A 48599HM001 CORD POWER AS SAA LP-23A LS-13 2.0M (LF)
ZZ120 PTBCSHG207 COVER BACK AS DLV-32C3SMBS
M211 4852177003 COVER BACK FR HIPS BK (NON-DECA)
M211A 4857818702 CLOTH BLACK FELT T0.7 L=350 W=15
M384 4853829200 FRAME WALL KIT SECC T=2.0
M384A 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M593 4855945500 DECO SIDE AV PVC 0.3T
ZZ130 PTPKCPG281 PACKING AS DLV-32C7SMB
M681 4856812400 BAND PP AUTO T1.1XW17MMXL770M
M801 4858071300 BOX CARTON DW-3
M811 485819DB00 PAD EPS
M822 4858219201 BAG P.E P.E FOAM T0.5X1100X950
ZZ140 PTCACAG281 CABINET AS DLV-32C7SMB
M124 485A110570 SHIELDRON 40X100X10(T)
M125 485A109670 SHIELDRON 10X7X1.0T
M126 485A109670 SHIELDRON 10X7X1.0T
M191 4851957403 SHIELD CASE AS 7255702+5944603
M201B 7173301052 SCREW TAPPTITE TT2 BIN 3X10 MFZN BK 3CR
M201C 7173301052 SCREW TAPPTITE TT2 BIN 3X10 MFZN BK 3CR
M201D 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M201E 7003400651 SCREW MACHINE BIN 4X6 MFZN 3CR
M201F 4856815910 CLAMP WIRE EGI T0.4+TUBE+PIE 4.2
M211A 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M211B 7172401652 SCREW TAPPTITE TT2 TRS 4X16 MFZN BK 3CR
M211C 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M211E 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M321 4853296800 BRKT STAND SECC T1.6
M321A 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M322 4853296900 BRKT STAND BOX SECC T1.0
M322A 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M322B 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M382 4853829100 FRAME BAR SECC T=1.2 (A-1 : AUO,SSE PANEL)
M382A 7003400651 SCREW MACHINE BIN 4X6 MFZN 3CR
M382B 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M491B 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M541 4855421200 SPEC PLATE P.E 149X59
M721A 7178300852 SCREW TAPPTITE TT2 WAS 3X8 MFZN BK 3CR
M723 4857255902 SHIELD JACK AL 1100 T=1.0 (A-3 : SL-230D)
M723A 7178300852 SCREW TAPPTITE TT2 WAS 3X8 MFZN BK 3CR
M723B 7178300852 SCREW TAPPTITE TT2 WAS 3X8 MFZN BK 3CR
MAK4A 4850K01400 CORE FERRITE BNF-12
MK202 4850K01700 CORE FERRITE BNF-1130
MK401 4850K01700 CORE FERRITE BNF-1130
MK501 4850K01900 CORE FERRITE BNF-1730
MK601 4850K01700 CORE FERRITE BNF-1130
MK602 4850K01700 CORE FERRITE BNF-1130
MK703 4850K01900 CORE FERRITE BNF-1730
MK704 4850K01700 CORE FERRITE BNF-1130
MK705 4850K01700 CORE FERRITE BNF-1130
MK803 4850K01000 CORE FERRITE BNF-18
MK804 4850K01400 CORE FERRITE BNF-12
P501A 4859004160 CABLE LVDS 1001-31FC-N+FH10002-30+3212APSB=300
P803A 4850714S04 CONNECTOR 20022HS-14+20022HS+ULW=300
V901 485LD13320 LCD PANEL LTA320WT-LF2
ZZ200 PTFMSJG281 MASK FRONT AS DLV-32C7SMB
M201 4852094903 MASK FRONT FR HIPS BK
M551 4855557201 DECO SENSOR GPPS
M561 4855626000 MARK BRAND SILVER DIA-CUTTING(DOUBLE FACED TAPE),L=85,P=30
M591 4855945901 DECO PLATE ACRYL T2.0
ZZ210 PTSPPWG207 SPEAKER AS DLV-32C3SMBS
P601A 4850703N44 CONNECTOR SMH250-03+YRT205+YRT110+USW=600
LOC PART CODE PART NAME DESCRIPTION
P602A 4850704S80 CONNECTOR SMH250-04+YRT205+YRT110+USW=500
SP01 4858318510 SPEAKER SP-45165F01C
SP01A 4856017800 SCREW SPKR FIX SWRM+SECC 3CR
SP02 4858318510 SPEAKER SP-45165F01C
SP02A 4856017800 SCREW SPKR FIX SWRM+SECC 3CR
ZZ230 PTUNSWG281 PCB UNION AS DLV-32C7SMB
100 2193110012 SOLDER WIRE SAC3000 Ø3.0MM (LFA3C0-W3.0)
200 2193110024 SOLDER WIRE SAC3005 Ø1.6MM (LFA3-107-W1.6)
300 2291050623 FLUX SOLDER LF SV-PBF-304P(0.823)
400 2291050312 FLUX SOLVENT S-3000
IC290 1TS0P34838 IC PREAMP TSOP34838SJ
JP201 4859105340 JACK S-VHS DSW-10 (STRAIGHT)
JP202 4859112850 JACK PIN DPSS-0173(3P ST)
LED1 DSPR39MVW- LED SPR-39MVW (DUAL)
M232 4852333201 PANEL CTRL HIPS BK
M491 4854964311 BUTTON CH ABS GY
M491A 7178301051 SCREW TAPPTITE TT2 WAS 3X10 MFZN 3CR
M551 4855557201 DECO SENSOR GPPS
P201A 4850705N28 CONNECTOR 12505HS-05+12505TS+ULW=900
P202A 4850706S42 CONNECTOR 12505HS-06+12505HS-06+ULW=700
P203A 4850710N33 CONNECTOR 12505HS-10+12505HS-10+ULW=800
ZZ200 PTUNJ2G281 PCB UNION CHIP AS DLV-32C7SMB
CC12 HCBK102KBA C CHIP CERA 50V X7R 1000PF K 1608
CC201 HCBK222KBA C CHIP CERA 50V X7R 2200PF K 1608
CC202 HCBK222KBA C CHIP CERA 50V X7R 2200PF K 1608
CC293 HCFK104ZBA C CHIP CERA 50V Y5V 0.1MF Z 1608
LC01 HLC479K02B L CHIP COIL 4.7UH MLF 1608
LC02 HLC479K02B L CHIP COIL 4.7UH MLF 1608
RC20 HRFT432JBA R CHIP 1/10 4.3K OHM J 1608
RC21 HRFT152JBA R CHIP 1/10 1.5K OHM J 1608
RC22 HRFT152JBA R CHIP 1/10 1.5K OHM J 1608
RC23 HRFT432JBA R CHIP 1/10 4.3K OHM J 1608
RC24 HRFT113JBA R CHIP 1/10 11K OHM J 1608
ZZ200 PTUNJRG281 PCB UNION RADIAL AS DLV-32C7SMB
SW201 5S50101Z90 SW TACT THVV502GDA
SW202 5S50101Z90 SW TACT THVV502GDA
SW203 5S50101Z90 SW TACT THVV502GDA
SW204 5S50101Z90 SW TACT THVV502GDA
SW205 5S50101Z90 SW TACT THVV502GDA
SW206 5S50101Z90 SW TACT THVV502GDA
SW207 5S50101Z90 SW TACT THVV502GDA
ZZ200 PTUNJ1G281 PCB UNION CHIP A AS DLV-32C7SMB
110 2193220010 SOLDER CREAM(PB-FREE) LST309-M(SN+3.0AG/0.5CU)
A001 4859833614 PCB UNION 189X189
PW201 49590009S0 CONN WAFER 12505WR-05A00
PW202 49590001S0 CONN WAFER 12505WR-06A00
PW203 4859297920 CONN WAFER 12505WR-10A00
ZZ250 PTSNSWG207 STAND AS DLV-32C3SMBS
M213 4852177301 COVER STAND BASE HIPS BK
M383 4853831001 FRAME STAND ABS BK
M383A 7172401452 SCREW TAPPTITE TT2 TRS 4X14 MFZN BK 3CR
M521 4855219100 PLATE BASE STAND SECC T2.0
M521A 7115401051 SCREW TAPPING FLT 4X10 MFZN 3CR
M521C 4852937500 RUBBER BOTTOM CR60 BK PHI 18.0 X T 3.0
ZZ290 PTMPMSG207 PCB MAIN MANUAL AS DLV-32C3SMBS
100 2193110012 SOLDER WIRE SAC3000 Ø3.0MM (LFA3C0-W3.0)
200 2193110024 SOLDER WIRE SAC3005 Ø1.6MM (LFA3-107-W1.6)
300 2291050623 FLUX SOLDER LF SV-PBF-304P(0.823)
400 2291050312 FLUX SOLVENT S-3000
CE607 CEXF1H331V C ELECTRO 50V RSS 330MF (10X20) TP
CE611 CEXF1E331V C ELECTRO 25V RSS 330MF (10X12.5)TP
HS301 4857032501 HEAT SINK AL EX BK L=26
HS501 4857032501 HEAT SINK AL EX BK L=26
IC701 1PC18LF452 IC MICOM PIC18LF452-I/P
JK250 4859118050 JACK PIN DPSE-9926S
JK270 4859105340 JACK S-VHS DSW-10 (STRAIGHT)
L605 58C0000157 COIL CHOKE CH-470X
L606 58C0000157 COIL CHOKE CH-470X
LOC PART CODE PART NAME DESCRIPTION
1) DLV-32C7SMB