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S/M NO. : TSL300VEF2
Service Manual
LCD TV
CHASSIS : SL-300V
Model : DLV-26C3SMBS
DLV-32C3SMBS
DLV-37C3LMBS
DLV-42C1LMN
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.
MAY. 2007
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 15
1) FEL-3237A : DLV-26C3SMBS, DLV-32C3SMBS, DLV-37C3LMBS 15
2) FEL-42C1 : DLV-42C1LMN 17
8. Bill Of Materials 19
1) DLV-26C3SMBS 19
2) Differental Materials Besides Mechanical Parts 28
9. How to S/W Upgrade Tools 29
1) Requirements 29
2) Outline of the S/W upgrade tool, which is DTV_Updater.exe 29
3) How to upgrade decoder of LCD TV 30
4) How to upgrade PIC micom of LCD TV 34
10. Schematics : Digital Board 39
11. Schematics : SMPS 48
1) FEL-3237A : DLV-26C3SMBS, DLV-32C3SMBS, DLV-37C3LMBS 48
2) FEL-42C1 : DLV-42C1LMN 49
12. Mechanical Development Figure 50
1) DLV-26C3SMBS 50
2) DLV-32C3SMBS 51
3) DLV-37C3LMBS 52
4) DLV-42C1LMN 53
-2-
1. Safety Precaution
(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.
-3-
2. Preliminary Troubleshooting
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'.
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.
-4-
3. Product Specification
1) Standard of Product
Features DLV-26C3SMBS DLV-32C3SMBS DLV-37C3LMBS DLV-42C1LMN
LCD Panel Panel Model LTA260W3_L01 LTA320WT-LF2 LC370WX1-SL01 LC420WX5-SLA1
Screen Size 68 cm 81 cm 93 cm 106 cm
Aspect Ratio 16 : 9 16 : 9 16 : 9 16 : 9
Resolution 1366 X 768 1366 X 768 1366 X 768 1366 X 768
(WXGA) (WXGA) (WXGA) (WXGA)
Pixel Pitch 0.42150 mm 0.51075 mm 0.60000 mm 0.68100 mm
Contrast Ratio 4000 : 1 (MAX) 5000 : 1 (MAX) 5000 : 1 (MAX) 5000 : 1 (MAX)
TV System Receiving PAL-B/G PAL-B/G PAL-B/G PAL-B/G
System PAL-B/H PAL-B/H PAL-B/H PAL-B/H
NTSC (AV) NTSC (AV) NTSC (AV) NTSC (AV)
LVDS Cable FI-E30S FI-E30S FL-X30SSL-HF FL-X30SSL-HF
LVDS B+ +5V +5V +12V +12V
Input Connector RF 50 Ohm Coaxial 50 Ohm Coaxial 50 Ohm Coaxial 50 Ohm Coaxial
S-Video / Video 2 2 2 2
Component RCA X 2 RCA X 2 RCA X 2 RCA X 2
PC RGB D-Sub X 1 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 3.5 mm Mini - Jack
HDMI 1 1 1 1
Output SPDIF Optical - Jack Optical - Jack Optical - Jack Optical - Jack
Connector Headphone X X X X
Monitor - out 1 1 1 1
Sound Output Max. 10W 10W 10W 10W
Power Module Model FEL-3237A FEL-3237A FEL-3237A FEL-42C1
Power Max. 110W 155W 195W 198W
Consumption Power Source 220-240V~ 220-240V~ 220-240V~ 220-240V~
50-60Hz 50-60Hz 50-60Hz 50-60Hz
Dimension Set Dimension 674 x 550 x 240 mm 806 x 626.5 x 240 mm 940 x 720 x 328.7 mm 1060 x 823 x 328 mm
(W x H x D) (with stand)
Set Dimension 674 x 496 x 114 mm 806 x 574.5 x 110 mm 940 x 655 x 129 mm 1060 x 758 x 132.5 mm
(without stand)
Owing to our policy of continuous improvement, specifications may change.
-5-
Product Specification
2) Available Input Signal
INTERFACE SOURCE VF INTERFACE SOURCE VF
RF PAL-B/G, B/H 50Hz HDMI 640x480 60Hz
VIDEO PAL-B/G, B/H 50Hz 640x480 75Hz
PAL-60 60Hz 800x600 60Hz
NTSC-M 60Hz 800x600 72Hz
NTSC-443 60Hz 800x600 75Hz
S-VIDEO PAL-B/G, B/H 50Hz 1024x768 60Hz
PAL-60 60Hz 1024x768 70Hz
NTSC-M 60Hz 1024x768 75Hz
NTSC-443 60Hz 1280x1024 60Hz
COMPONENT 480i 60Hz 1360x768 60Hz
480p 60Hz 480p 60Hz
576i 50Hz 576p 50Hz
576p 50Hz 720p 50Hz
720p 50Hz 720p 60Hz
720p 60Hz 1080i 50Hz
1080i 50Hz 1080i 60Hz
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 ATV VIDEO 1 VIDEO 2 COMP 1 COMP 2 HDMI PC
ATV X X X O O X X
VIDEO 1 X X X X X X X
VIDEO 2 X X X X X X X
COMP 1 O X X X X X X
COMP 2 O X X X X X X
HDMI X X X X X X X
PC X X X X X X X
-6-
4. Service Remote Controller
1) Key Arrangement
ChSet
Recall
Volume
HEAT-RUN
PQ
SVPPX Hotel Lock
MPEG PreScale
W/B
MISC
Reset
Pattern
-7-
Service Remote Controller
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
-8-
Service Remote Controller
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 0 Don't Care
DIAHighThreshold C 0 Don't Care
DIALowThreshold Y 0 Don't Care
DIALowThreshold Y 0 Don'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
-9-
Service Remote Controller
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-26C3SMBS -> SS26
: DLV-32C3SMBS -> SS32
: DLV-37C3LMBS -> LG37
: DLV-42C1LMN -> LG42
[S5] -> [PQ] -> [Brightness & Contrast] : This data can be changed only in each mode.
: For example, [Main HDMI Cont] value can be
changed only in HDMI 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.
-10-
Signal Block Diagram : ZORAN
5. Block Diagram
-11-
In this unit, SUPRA660 does not decode digital broadcast stream.
6. Hardware Troubleshooting : Digital Board
1) In spite of sound output, the screen is black.
1.1 In case of ATV, VIDEO and COMPONENT mode.
START
Check No
the input power of
IC501 is correct
Yes
Check the SMPS
and input voltage
Check
Yes
the LVDS signal output of IC501 is correct
(Pin A14, B14, A15, B15, A16, B16, A17,
B17, A18, B18, A19, B19)
No Check No
the LVDS connector and cable
is correct
Yes
Yes
Is the input signal of IC501 normal?
No IC501 Problem. Perhaps Connector and Cable
Replace the Main PCB 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
-12-
Hardware Troubleshooting : Digital Board
1.2 In case of PC and HDMI mode
START
Check
No
PC/HDMI resolution to
available resolution in
LCD TV
Yes Check the input resolution
of external device
Check No
the input power of
IC501 is correct
Yes Check the SMPS and
input voltage
Check
Yes
the LVDS signal output of IC501 is correct
(Pin A14, B14, A15, B15, A16, B16, A17,
B17, A18, B18, A19, B19)
No Check No
the LVDS connector and cable
is correct
Yes Yes
Is the input signal of IC501 normal?
IC501 Problem. Perhaps Connector and Cable
No
Replace the Main PCB 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
-13-
Hardware Troubleshooting : Digital Board
2) In spite of picture display, the sound is not generated.
START
No 1. Confrim AC connection
Does screen appear? 2. Confrim Power S/W on
3. Check Video or other PCBs
Yes
No
Is the Sound input Jack
Check the connection of jack
correctly connected?
Yes
No
Is the speaker correctly
Check the connection of speaker
connected?
Yes
Check No
the input power of IC602 is normal Check the SMPS and input voltage
(Pin 4, 7, 12, 15)
Yes
Check Yes
the signal output of IC602 is normal Check the path from IC602 to Speaker
(Pin 8, 9, 16, 17)
No
Check Yes Perhaps IC602 problem.
the signal output of IC601 is normal
Replace main PCB
(Pin 31, 33)
No
Check Yes Perhaps IC601 problem.
the input signal of IC601is
Replace main PCB
normal
No
Digital TV mode : Check the path from Pin 7 Analog TV mode : Check the path from Pin 55
of IC601 to Pin T2 of IC301 of IC601 to Pin 10 of TU101
HDMI mode : Check the path from Pin 21 Video, Component mode : Check the path from
of IC601 to Pin V12 of IC501 each Pin of IC601 to each jack
-14-
7. Hardware Troubleshooting : SMPS
1) FEL-3237A : DLV-26C3SMBS, DLV-32C3SMBS, DLV-37C3LMBS
'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)?
A. Can you check that Vcc voltage of IC3 was supplied from DC15V to DC27V?
YES 1.1 Checking open and short of Out-put side wire cable.
YES 1.2. Checking open and short of the around parts that was connected IC3(STR-A6151).
(Location No. : R4, R5, D4, D5, D7)
NO 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)
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.
NO 1.6. Checking open and short of BD1, BD2.
YES : Changing BD1, BD2.
NO : Checking open and short of Z1, LF1, LF2, C1, C2.
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?
B. Can you check the Q4's condition(open and short)?
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.
NO
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.
YES
C. Can you check that Vcc voltage of IC2's No.12pin was supplied from DC10V to DC12V?
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.
NO
(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.
NO 2.7. Checking open and short of MAIN BOARD.
-15-
Hardware Troubleshooting : SMPS
'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.
-16-
Hardware Troubleshooting : SMPS
2) FEL-42C1 : DLV-42C1LMN
'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)?
A. Can you check that Vcc voltage of IC3 was supplied from DC15V to DC27V?
YES 1.1 Checking open and short of Out-put side wire cable.
YES 1.2. Checking open and short of the around parts that was connected IC3(STR-A6151).
(Location No. : R4, R5, D4, D5, D7)
NO 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)
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.
NO 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.
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?
B. Can you check the Q4's condition(open and short)?
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.
NO
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.
YES
C. Can you check that Vcc voltage of IC2's No.12pin was supplied from DC10V to DC12V?
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.
NO
(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.
NO 2.7. Checking open and short of MAIN BOARD.
-17-
Hardware Troubleshooting : SMPS
'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.
-18-
8. Bill Of Materials
1) DLV-26C3SMBS
LOC PART CODE PART NAME DESCRIPTION LOC PART CODE PART NAME DESCRIPTION
ZZ100 48B5655B02 TRANSMITTER REMOCON R-55B02 (AAA) SP01A 4856017800 SCREW SPKR FIX SWRM+SECC 3CR
ZZ110 PTACPWG216 ACCESSORY AS DLV-26C3SMBS SP02 4858318510 SPEAKER SP-45165F01C
60 4850Q01210 BATTERY LR03 AAA ALKALINE SP02A 4856017800 SCREW SPKR FIX SWRM+SECC 3CR
M212 4852176101 COVER BOTTOM ABS BK ZZ230 PTUNSWG216 PCB UNION AS DLV-26C3SMBS
M681 4856819300 CLAMP WIRE NYLON 66 100 2193110012 SOLDER WIRE SAC3000