Sampo L0037, DIV0037 Schematic

6 B). Inverter –MODULE Spec &Trouble Shooting Chart

TYPE: L0037 FOR CHI-MEI 17”PANEL

In LM700 model , we use CHI-MEI panel, and the INVERTER PROVIDER is SAMPO-

CORPORATION

I.) TROUBLE SHOOTING OF CHI-MEI INVERTER (part no : 79AL17-1-S)

SAMPO CORPORATION

TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -)

1.SAMPO PART NO .: L0037 ,AOC PART NO.: 79AL17-1-S

2.SCOPE : this is to specify the requirements of the subject parts used in

CHI-MEI (M170E1) 17 inch (4 C.C.F.L.) LCD monitor.

3.CONNECTOR PIN ASSIGMENT:

4-1. CON1: INPUT

MODEL NO.: S5B-PH-SM3-TB

4-2. CON2,CON3 : OUTPUT
MODEL NO. : SM04(4.0)B-BHS-1-TB

PIN SYMBOL DESCRIPTION

1 Vin Input voltage: 12V
2 Vin Input voltage: 12V
3 ON/OFF ON: 3V OFF:0V
4 Dimming Dimming range (0V~+5.0V)

5 GND GND

PIN SYMBOL DESCRIPTION

1 HV OUTPUT Input H.V to lamps
2 HV OUTPUT Input H.V to lamps
3 N.C. N.C.
4 RETURN Return to control

1 2 3 4 5

TV TV

SAMPO CORPORATION

TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -)

5.FUNCTION SPECIFICATIONS:

The data test with the set of SAMPO, and the test circuit is as below.

ITEM

SYMBOL MIN. TYP. MAX. UNIT REMARK

Input voltage

Vin

Input current Iin -- 2200 2500 mA
output current

Iout

adj:0v( min.)

(min)

Output current

Iout

adj.:5 v(max.)

(max)

Frequency
H.V open

H.V Load

F 40 50 60 KHZ

Vopen

Vload

6. FUNCTION LOAD CIRCUIT:

10.8 12 13.2

2.1

5.5

2.6

6.0

3.1

6.5

V

mA

mA

1400 1500 1600 Vrms

630 730 830 Vrms

FOR 1 CCFL

LOAD:120KÙ

FOR 1 CCFL
LOAD:120KÙ

NO LOAD
RL=120KÙ

120KÙ

10Ù

TV

1
2

4

4
2

1

CON1

120KÙ

10Ù

120KÙ

PIN SYMBOL

120KÙ

1 Vin 12V

10Ù 10Ù

TV

2 Vin 12V
3 ON/OFF
4 Dimming
5 GND

S
S

S
G D

S
S

S
G D

D
D
D

D
D
D

TROUBLE SHOOTING OF CHI-MEI INVERTER ( DIVTL0037-D42- -)

SUPPLIER

8.PART LIST

8-1 COMPONENTS LIST:

NO.

1. CON1 CONNECTOR VCNCP0015-EJSTA 1 S5B-PH-SM3-TB JST

2. CON2,3

3. R1,2 RESISTOR VRMHNVA--103J-A 2

4. R3,4

5. R5,6

REF.

PART NAME PART NUMBER QTY



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SAMPO CORPORATION

DESCRIPTION

VCNCP0014-PJSTA

VCNCP0014-ZGLEA

VRMHNVA--683J-A 2
VRMHNVA--912J-A 2

2 SM04(4.0)B.BHS-1-TB

GL SM02(4.0)-WH2
SMD 0603 10KÙ 5%
SMD 0603 68KÙ 5%
SMD 0603 9.1KÙ 5%

REMARK

JST

GEAN-LEA

YAGEO
YAGEO
YAGEO

6. R7,8

7. R9,10

8. R11,12,
31,32

9. R13,14

10. R15,16

11. R17,18

12. R27

13. R28,29,

14. R23,24,
25,26

15. R19,20

16. R21,22

17. R33

18. Q1 TRANSIST0R VSTDTC144WKA--A 1 SMD DTC144WKA ROHM

19. Q2

20. Q3,5

21. Q4,6

22. Q7,8,9,

10

23. C1,2 CAPACITOR VCLFCN1EY224Z-A 2

24. C3,4,,9

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VRMHNVA--274J-A 2

VRMHNVA--R00J-A 2

VRMCNV8--102F-A 4

VRMHNVA--752J-A 2
VRMHNVA--433J-A 2
VRMHNVA--271J-A 2
VRMHNVA--472J-A 1
VRMHNVA--392J-A 2
VRMBNV4--102F-A 4

VRMCNV8--183F-A 2
VRMCNV8--133F-A 2

VRMHNVA--363J-A 1

VSTDTA144WKA --A 1 SMD DTA144WKA ROHM

VSTSST3904----A
VSTMMBT3904-A

VSTCEM9435A-----A 2 SMD CEM9435A CET

VST2SD2150----A 4 SMD 2SD2150 ROHM

VCLRCN1EB104K-A 3

SMD 0603 270KÙ 5%
SMD 0603 0 Ù 5%

SMD 0805 1KÙ 1%

SMD 0603 7.5KÙ 5%
SMD 0603 43KÙ 5%
SMD 0603 270Ù 5%

SMD 0603 4.7KÙ 5%
SMD 0603 3.9KÙ 5%

SMD 1206 1KÙ 1%

SMD 0805 18KÙ 1%
SMD 0805 13KÙ 1%
SMD 0603 36KÙ 5%

2 SMD SST3904-T116

SMD MMBT3904

SMD 0805 0.22 µF/25V

SMD 0805 0.1 µF/25V

YAGEO
YAGEO
YAGEO

YAGEO
YAGEO
YAGEO
YAGEO
YAGEO
YAGEO

YAGEO
YAGEO
YAGEO

ROHM

MOTOROLA

TDK
TDK

25. C5 VCEATU1EC336M--

VCEATU1VC476M--

1

DIP UGX 33 µF/25V
DIP UGX 47 µF/35V

SANYO