Samsung LA32S81B Schematic

TFT-LCD TV

Chassis GJA32SSA

GJA37SSA
GJA40SSA
GJA46ASA

Model LA32S81B

LA37S81B
LA40S81B
LA46S81B

Manual

SERVICE

TFT-LCD TV Fashion Feature

- Luxurious Slim Design

- Supreme Picture Quality

- Supreme Sound Quality

- Supreme Convenience Quality

- Convenience for Users

ii

Copyright

ⓒ 2007 by Samsung Electronics Co., Ltd.
All rights reserved.
This manual may not, in whole or in part, be copied,

photocopied, reproduced, translated, or converted to any
electronic or machine readable form without prior
written permission of Samsung Electronics Co., Ltd.

LA32S81B/LA37S81B/LA40S81B/LA46S81B
Service Manual

First edition June 2007.
Printed in Korea.

Trademarks

Samsung is the registered trademark of Samsung
Electronics Co., Ltd.
LA32S81B/LA37S81B/LA40S81B/LA46S81B and
Macmaster Cable Adapter are trademarks of Samsung
Electronics Co., Ltd.

Macintosh and Power Macintosh are trademarks of
Apple Computer, Inc.

All other trademarks are the property of their respective
owners.

Contents

11. Precautions

………………………………………………………………………………………………………………………………………

11-1

1-1 Safety Precautions ……………………………………………………………………………………………………………………… 1-1

1-2 Servicing Precautions …………………………………………………………………………………………………………………… 1-2

1-3 Static Electricity Precautions …………………………………………………………………………………………………………… 1-2

1-4 Installation Precautions…………………………………………………………………………………………………………………… 1-3

2

2. Product specifications

…………………………………………………………………………………………………………………………

22-1

2-1 Fashion Feature…………………………………………………………………………………………………………………………… 2-1

2-2 LA32S81B Specifications ………………………………………………………………………………………………………………… 2-2

2-3 LA37S81B Specifications ………………………………………………………………………………………………………………… 2-3

2-4 LA32S81B Specifications ………………………………………………………………………………………………………………… 2-4

2-5 LA46S81B Specifications ………………………………………………………………………………………………………………… 2-5

2-5 Spec Comparison ………………………………………………………………………………………………………………………… 2-6

2-6 Option Specification ……………………………………………………………………………………………………………………… 2-7

3

3. Alignments and Adjustments

…………………………………………………………………………………………………………………

33-1

3-1 Service Instruction ……………………………………………………………………………………………………………………… 3-1

3-2 How to Access Service Mode …………………………………………………………………………………………………………… 3-2

3-3 Factory Data ……………………………………………………………………………………………………………………………… 3-3

3-4 Service Adjustment ……………………………………………………………………………………………………………………… 3-12

3-5 Software Upgrade ……………………………………………………………………………………………………………………… 3-15

4

4. Troubleshooting

………………………………………………………………………………………………………………………………

44-1

4-1 First Checklist for Troubleshooting ………………………………………………………………………………………………………4-1

4-2 Checkpoints by Error Mode ……………………………………………………………………………………………………………… 4-2

5

5. Exploded View and Parts List

…………………………………………………………………………………………………………………

55-1

5-1 LA32S81B Exploded View ……………………………………………………………………………………………………………… 5-1

5-2 LA32S81B Parts list ……………………………………………………………………………………………………………………… 5-2

5-3 LA37S81B Exploded View ……………………………………………………………………………………………………………… 5-3

5-4 LA37S81B Parts list ……………………………………………………………………………………………………………………… 5-4

5-5 LA40S81B Exploded View ……………………………………………………………………………………………………………… 5-5

5-6 LA40S81B Parts list ……………………………………………………………………………………………………………………… 5-6

5-7 LA46S81B Exploded View ……………………………………………………………………………………………………………… 5-7

5-8 LA46S81B Parts list ……………………………………………………………………………………………………………………… 5-8

6

6. Electrical Parts List

……………………………………………………………………………………………………………………………

66-1

6-1 LA32S81B Parts List ……………………………………………………………………………………………………………………… 6-1

6-2 LA37S81B Parts List …………………………………………………………………………………………………………………… 6-20

6-3 LA40S81B Parts List …………………………………………………………………………………………………………………… 6-35

6-4 LA46S81B Parts List …………………………………………………………………………………………………………………… 6-35

7

7. Block Diagram

…………………………………………………………………………………………………………………………………

77-1

Contents

88. Wiring Diagram

…………………………………………………………………………………………………………………………………

88-1

8-1 Wiring Diagram ……………………………………………………………………………………………………………………………8-1

8-2 Main Board Layout ……………………………………………………………………………………………………………………… 8-2

8-3 PIN characteristic ………………………………………………………………………………………………………………………… 8-3

8-4 Power Board Layout ……………………………………………………………………………………………………………………… 8-6

99. Schematic Diagrams

……………………………………………………………………………………………………………………………

99-1

10. O

Operating Instructions and Installation

………………………………………………………………………………………………………

110-1

10-1 Front …………………………………………………………………………………………………………………………………… 10-1

10-2 Connection Panel ……………………………………………………………………………………………………………………… 10-2

10-3 Remote control ………………………………………………………………………………………………………………………… 10-4

10-4 Installing the Stand …………………………………………………………………………………………………………………… 10-5

10-5 Installing the Wall Mount Kit ………………………………………………………………………………………………………… 10-5

1

11. Disassembly and Reassembly

………………………………………………………………………………………………………………

111-1

11-1 Disassembly …………………………………………………………………………………………………………………………… 11-1

11-2 Reassembly …………………………………………………………………………………………………………………………… 11-5

1

12. PCB Diagram

…………………………………………………………………………………………………………………………………

112-1

13. CCircuit Descriptions

……………………………………………………………………………………………………………………………

113-1

13-1 Block description ……………………………………………………………………………………………………………………… 13-1

13-2 Main Block ……………………………………………………………………………………………………………………………… 13-3

13-3 SMPS Board …………………………………………………………………………………………………………………………… 13-4

1

14. Reference Infomation

………………………………………………………………………………………………………………………

114-1

14-1 Technical Terms ……………………………………………………………………………………………………………………… 14-1

14-2 Pin Assignments ……………………………………………………………………………………………………………………… 14-4

14-3 Timing Chart …………………………………………………………………………………………………………………………… 14-7

14-4 Panel Description …………………………………………………………………………………………………………………… 14-11

Samsung Electronics Co.,Ltd.

416, Maetan-3Dong, Yeongtong-Gu, Suwon City,
Gyeonggi-Do, Korea, 443-742
Printed in Korea
P/N : BN82-00202A-00
URL : http://itself.sec.samsung.co.kr/

- 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.

3 Alignments and Adjustments

3-1

3 Alignments and Adjustments

3-1 Ser vice Instr uction

1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation.
Check the basic characteristics such as height, horizontal and vertical sync.

2. Use the specified test equipment or its equivalent.

3. Correct impedance matching is essential.

4. Avoid overload. Excessive signal from a sweep generator might overload the front-end
of the TV. When inserting signal markers, do not allow the marker generator to distort
test result.

5. Connect the TV only to an AC power source with voltage and frequency as specified on
the backcover nameplate.

6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure
that the power cord is disconnected before replacing any parts.

7. To protect aganist shock hazard, use an isolation transform.

3 Alignments and Adjustments

3-2

3-2 How to Access Service Mode

3-2-1 Entering Factory Mode

1. To enter "Service Mode" Press the remote -control keys in this sequence :

- If you do not have Factory remote - control

- If you have Factory remote - control

- The buttons are active in the service mode.

1. Remote - Control Key : Power, Arrow Up, Arrow Down, Arrow Left

Arrow Right, Menu, Enter, Number Key(0~9)

2. Function - Control Key : Power, CH +, CH -, VOL +, VOL -, Menu, TV/VIDEO(Enter)

3-2-2 Panel Check

Specially for LE26,32R7**, You have to check Panel Maker Because of different adjustments as follows.
First of all, Check the label rating!

1) Label Rating File

If Panel Mark is "A", Set the factory mode
indicating as follows.

Panel BOM(Bill of material) : BN07-00289A
Connector between Panel and Power Unit
: BN39-00603M (300mm)

* Option Byte

1. Gamma "AUO"

2. Panel Option "AUO"

If Panel Mark is "S" or not printed.
Set the factory mode indicating as follows.

Panel BOM(Bill of material) : BN07-00247A
Connector between Panel and Power Unit
: BN39-00603M (300mm)
* Option Byte

1. Gamma "AMLCD"

2. Panel Option "AMLCD_INT"
If Panel Mark is "C" , Set the Factory mode
indicating as follows.
Panel BOM(Bill of Material) : BN07-00207A
Connecotor between Panel and Powe Unit :
BN39-00659A(200mm)
* Option Byte

1. Gamma " CMO "

2. Panel Option " CMO "

Others are same shown below.

PANEL MAKER

Power OFF

PICTURE ON

INFO

DISPLAY

MENU

MUTE

FACTORY

Power ON

3 Alignments and Adjustments

3-3

3-3 Factory Data

1. Calibration

2. Option Table XXXX XXXX

3. W/B

4. W/B Movie

5. MTK8202

6. FBE2 option

7. Sound

8. Sound AMP

9. YC Delay

10. Adjust

11. Bus Stop

12. Password 80 80 80 80

13. Checksum 0000

14. Dynamic Contrast

15. Spread Spectrum

16. Reset
HDCP Write Success..(or Failure..)
T_JSMMPEU-1000 (Main Micom Ver) Month/ Day / Year / Hour/ Min./Sec.
T-BRPMNSAS-1000 (Sub Micom Ver. Only BDX Plus)
Panel On Time(Hour) XXXXX

1. Calibration

1) AV Calibration

2) DTV Calibration

3) PC Calibration

4) HDMI Calibration

2. Option Byte

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19

item

Panel Inch

Panel Vender

Dimming

Gamma
Auto Power
Hotel Mode
Shop Mode

High Devi

Carrier Mute

TTX

TTX List

TTX Group

TTX ATM

HDMI Select

Volume Table

Sound Wattage

HP Position

Language

HP Detect

CMO 32"

32

CMO

INTERNAL

Off
On
Off
Off
Off
Off
On

Flof

User OSD

Off

2HDMI

Small

LCD 10W

Side

English

Active High

3 Alignments and Adjustments

3-4

3. White Balance

No

1
2
3
4
5
6
7
8

»ç¾ç

item

SubBright

Roffset
Goffset
Boffset

SubContrast

RGain
GGain
BGain

Low Light

High Light

RF/AV Component

4. W/B Movie

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

item

Service P Mode

Service Color Tone

MSub Brightness

MSub Contrast
Warm1 Red Gain
Warm1 Blue Gain

Warm1 Red Offset

Warm1 Blue Offset

Warm2 Red Gain
Warm2 Blue Gain

Warm2 Red Offset

Warm2 Blue Offset

Normal Red Gain
Normal Blue Gain

Normal Red Offset
Normal Blue Offset

Cool2 Red Gain

Cool2 Blue Gain
Cool2 Red Offset
Cool2 Blue Offset

Mov. Contrast

Mov. Brightness

Mov. Color

Mov. Sharpness

RF/AV/S_video

Dynamic

Cool1

128
128
143
111
128
127
142
101
127
128
134
121
127
126
128
134
128
128

80
50
25
45

3 Alignments and Adjustments

3-5

5. MTK8202

1) Cal. Adjustment

2) Cal. Target

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

item

R_Offset
G_Offset
B_Offset

R_Gain

G_Gain

B_Gain

Y_Offset

Cb_Offset

Cr_Offset

Y_Gain

Cb_Gain

Cr_Gain

CVBS Offset

CVBS Gain

CVBS U

CVBS V
HDMI R_Gain Ref.
HDMI G_Gain Ref.
HDMI B_Gain Ref.

HDMI R_Offset Ref.
HDMI G_Offset Ref.

HDMI B_Offset Ref.

2nd Cal Error AV

2nd Cal Error DTV

LVDS Control

value

30
32
23
77
85
89
21
39
41
41
41
41
55
52

0

0
229
229
229

16
16
16

2

2

55

NO

1
2

item

Black Target

White Target

value

1
235

3) Scart RGB

NO

1
2
3
4
5
6

item

SC1_R_Offset
SC1_G_Offset
SC1_B_Offset

SC1_R_Gain
SC1_G_Gain

SC1_B_Gain

ALL Mode

115
115
115

70
70
70

3 Alignments and Adjustments

3-6

4) Picture enhance 1

NO

1
2
3
4
5
6
7
8

9
10
11
12

item

Dynamic Contrast

Dynamic CE

Dynamic Dimming

Black_Min

Black_Middle

Black_Max

Cut Off

Upper

Center L Lmt

Center R Lmt

Ugain Max

Lgain Max

value

on
on
on
14
26
36

4

28

6
26
16

8

5) Picture enhance 2

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14

item

PreLGain_Main

PreMGain_Main

PreHGain_Main

PreLGain_Sub
PreMGain_Sub
PreHGain_Sub

LocalLGain

LocalMGain

LocalHGain

PostLGain
PostMGain
PostHGain

Vgain

Sub Color

value

64
64
64
64
64
64
72
80
64
72
72
84

0

28

3 Alignments and Adjustments

3-7

6) FBE2 option

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

item

Patt-Sel

B-Slope gain

B-Tilt min
B-Tilt max
B-Tilt slpe

Lfunc-Basis

Hfunc-Basis
Mean-Offset1
Mean-Offset2

Mean-Slope

Input-Offset

Input-gain

ACR-Offset

ACR-Th1
ACR-Th2

Skin-Enable

Skin-Tu
Skin-Tv

M-Skin-Tu

M-Skin-Tv

Sub color
M-Au-Sub color
M-Wi-Sub color

value

0
64
20

120
128

75
88
75

150

41

128
128

30
30

100

On

22
22

128
128
143
128
128

3 Alignments and Adjustments

3-8

7) Sound

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26

item

AM Mute
AM_mute Th_High
AM_mute Th_Low

FM Mute
FM_mute Th_High

FM_mute Th_Low

Correct Threshold

Sync Loop

Error Threshold

Parity Error Thrd

Every Num Frames

Num of Check

Num of Double Chk

Mono Weight

Stereo Weight

Dual Weight
M2S Threshold
S2M Threshold

NICAM FINE VOL

FM FINE VOL
AM FINE VOL

FINE TUNE VOL

SC1 Fine Vol
SC2 Fine Vol
Output Matrix

Speaker EQ

value

Off

9

8
Off
34
32

6

201

8
48

512

10
10

1

1

1
10
10
20
20
19
20
21
21

Bypass

Off

8) SOUND AMP

1
2

Amp Volume

Speaker EQ

17

OFF

3 Alignments and Adjustments

3-9

9) YC Delay

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15

item

RF PAL-B/G

RF PAL-D/K

RF PAL- I

RF PAL- L/L'
RF SECAM-B/G
RF SECAM-D/K

RF SECAM-I

RF SECAM-L/L'

RF NTSC3.58
RF NTSC4.43

AV PAL

AV SECAM

AV NTSC 3.58

AV NTSC4.43

AV PAL60

TV/AV/S_Video

6
5
5
5
7
5
5
5
5
6
3
7
6
6
5

9. Adjust

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

item

TTX PWM

Dyn. Contrast

Dyn. Brightness

Dyn. Color

Dyn. Sharpness

Std. Contrast

Std. Brightness

Std. Color
Std. Sharpness
Melody Volume

Brightness Center

Contrast Gain

MTK_Dyn.Contrast

DSP Recovery

Channel Table

Video Mute Time

value

30

100

45
55
75
80
50
55
50
20
38

64
On
Off

Suwon

10

1) User Control Initial

3 Alignments and Adjustments

3-10

NO

1
2
3
4
5
6
7
8
9

item

LNA Plus
RF_dB0_TH
RF_dB1_TH
RF_dB2_TH
RF_dB3_TH
NR1_Coring
NR2_Coring
NR3_Coring
NR4_Coring

value

On

5
15
43
64
16
32
32
32

2) LNA PLUS

NO

1
2
3
4
5
6

item

Power On Channel

Power On Band

Power On Volume

Max Volume

Local Key Lock

Power On Source

value

1
Air
10

100

OFF

TV

3) Hotel Option

NO

1
2
3
4
5

item

Main Loop

Eeprom

Tuner

Normal

Watch Dog

value

Off
Off
Off
Off
On

10. Bus Stop

11. Password : 80 80 80 80

12. Checksum XXXX

3 Alignments and Adjustments

3-11

NO

1
2
3

item

Dynamic CE

Dynamic Dimming

FBE2 Y_MEAN Read

value

On
On

50

13. Dynamic Contrast

NO

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17

input resolution

Spread Spectrum

Step_480I/576I
Range_480I/576I
Step_480P/576P

Range_480P/576P

Step_720P

Range_720P

Step_1080I

Range_1080I

Step_640_480

Range_640_480

Step_800_600

Range_800_600

Step_1024_768

Range_1024_768

Step_1360_768

Range_1360_768

value

On

40
50
30
50
30
45
30
45
40
50
40
55
40
55
40
55

14. Spread Spectrum

15. Reset

3 Alignments and Adjustments

3-12

3-4-1 White Balance - Calibration

If picture color is wrong, do calibration first.

Equipment : CA210, Patten : chess pattern
Execute calibration in Factory Mode
Source AV : PAL composite, Component : 1280*720/60Hz

PC : 1024*768/60Hz

3-4-2 White Balance - Adjustment

If picture color is wrong, check White Balance condition.

Equipment : CA210, Patten : Toshiba
Adjust W/B in Factory Mode

Sub brightness and R/G/B Offset controls low light region
Sub contrast and R/G/B Gain controls high light region
Source AV : PAL composite, Component : 1280*720/60Hz

HDMI[DVI] : 1280*720/60Hz

W/B Patten

[ Test Pattern : MSPG-945 Series Pattern #92 ]

*Color temperature
1500K +/-500, -6 ~-20 MPCD

*Color coordinate
H/L : 267/263 +/- 2 35.0 Ft +/- 2.0Ft
L/L : 270/260 +/- 3 1.5 Ft +/- 0.2Ft

( chess patten )

3 Alignments and Adjustments

3-13

3-4-3 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 2 : 744X484@60 Hz
NO 6 : 1280X720@60 Hz
NO 21 : 1024X768@60 Hz

* Pattern NO 36 : 16 Color Pattern

NO 16 : Toshiba ABL Pattern
NO 92 : W/B Pattern

2. Optical measuring device : CA210 (FL)
Please use the MSPG-925 LTH generator for model

LA32S81B/ LA37S81B/ LA40S81B/ LA46S81B

.

3-4-4 Method of Adjustment

1. Adjust the white balance of AV, Component and DVI Modes.

(AV Component)

a) Set the input to the mode in which the adjustment will be made

(RF DTV PC DVI).

* Input signal - VIDEO Mode : Model #2 (744*484 Mode), Pattern #16

- DTV,DVI Mode : Model #6 (1280*720 Mode), Pattern #16

- HDMI Mode: Model #6(1280*720 Mode), Pattern #16

b) Enter factory color control, confirm the data.

c) Adjust the low light. (Refer to table 1, 2 in adjustment position by mode)

- Adjust sub - Brightness to set the 'Y' value.

- Adjust red offset ('x') and blue offset ('y') to the color coordinates.

* Do not adjust green offset data.

d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode)

- Adjust red gain ('x') and blue gain ('y') to the color coordinates.
* Do not adjust the green gain and sub-contrast (Y) data.

Picture 4-2 W/B Patten

3 Alignments and Adjustments

3-14

Picture 4-3 W/B Patten

3 Alignments and Adjustments

3-15

3-5 Software Upgrade

3-5-1 How to Update Flash ROM (with RS-232C Cable)

1. Installthe Flash Downloader
ConnectSet(Service Jack)and Jig Cable to execute Program Update.

2. Turn on the Set (or on Stand by mode)

- Run "MTKtool"

3. Turn off (= AC Power off) the Set (waiting a few seconds) and turn on again.

- Click Reset

- Choose MT8202 (1)

- Select Com Port (2) (Auto Detect)

- Select Bin file, by browse (3)

- Click Upgrade button (4)

3 Alignments and Adjustments

3-16

3-5-2 How to Update Flash ROM (with UART JIG)

¡Ø In the usual cases, Update S/W by using RS-232C Cable.

If some problems occur under this condition, update S/W by using UART JIG.

You can use UART JIG with USB Connection.

Install in your PC before using the JIG
Connect 4P Lead connector to Main Board(CN501)

3 Alignments and Adjustments

3-17

* Pin Assignment

Turn on the Set (or on Stand by mode)

- Run "MTKtool"

When you run "MTKtool", this Program can detect USB port automatically
Choose USB interface and Update S/W as RS-232C case.

3 Alignments and Adjustments

3-18

Memo

7 Block Diagrams

7-1

7 Block Diagram

- This Document can not be used without Samsung’s authorization

7 Block Diagrams

7-2

Memo

13 Circuit Descriptions

13-1

13 Circuit Descriptions

13-1 Block description

RF IN

Scart 1,2

A/V

S-Video

Component

HDMI 1, 2

PC

Main

Board

Panel
T-con

Board

Speaker

IR/LED

Signal
Power

Bordeaux consists of three main blocks

1. Main board : Video signal processing

2. IP board : Power supply & Inverter

3. T-con board : LCD Panel control

IP Board

13 Circuit Descriptions

13-2

Bordeaux consists of three main blocks

1. Main board : Video signal processing

2. SMPS : Power supply

3. T-con board : LCD Panel control

SMPS

INVERTER

RF IN

Scart 1,2

A/V

S-Video

Component

HDMI 1, 2

Main

Board

Panel
T-con

Board

Speaker

IR/LED

Signal
Power

PC

13 Circuit Descriptions

13-3

13-2 Main Block

13 Circuit Descriptions

13-4

13-3 SMPS Board

13-3-1 26", 32" Power Block

13-3-2 26", 32" SMPS Diagram

Line

Filter

Part

PFC

Switching

Part

Resonance

Switching

Part

Resonance

Transformer

Output

Rectifier

Part

DC/DC
SI-8008HFE
or AP1501A

Inverter

SMPS

24V

Signal

5.3V

Signal

13V

Sound

12V

Stand-By

5.2V

Regulator

KA278R12

Resonance

Controller
MC33067

PFC
Controler
TDA4863

Stand-By

Controller

STR-A6159

AC Input

(90Vac~264Vac)

AC

Rectifier

PFC

Rectifier

On/Off

Control

On/Off

EMI

FILTER

AC Input

90V~264V

INPUT

Rectifier

MC33067

STR-A6159

Current

Resonant Type

450V

150uF

TDA4863

PFC DC
Output

Trans EER4445

Trans EE2020

PFC

Regulator

Sound

+12V

V5D

+5.3V

Stand-By

5.2V

INVERTER

24V

Main

+13V

DC/DC

Converter

On/Off

Control

Power On/Off

Signal

ST-BY

Transformer

Output

Rectifier

Part

13 Circuit Descriptions

13-5

Output

Name

Output Voltage Output Current

Load Characteristics PCB Loc.

Usage Remark

Normal

24.5V

5.3V

12.7V

9.2V

8.0V

0.1V

0.1V

0.01V

0.01V

0.1V

4.0V

5.0V

0.5V

1.1V

0.6V

Pulsating Main B'D Drive -

-

-

-

-

Sound

Stand-by

Drive, Logic,

Buffer,

Image Digital

Image Analog

Main B'D

Main B'D

Main B'D

Main B'D

Constant

Constant

Constant

Constant

3.0V

3.0V

0.3V

0.3V

0.3V

23.52V

~25.48V

5.13V

~5.67V

11.9V

~13.7V

8.83V

~9.57V

5.58V
~8.5V

±

4

±

5

±

7

±

4

±

5

Min Typical PeakRegulation(%) Variable Range

24V

13V

Vamp

ST-BY

5.3V