Sansui SV-3215 Schematic

BF3293-XC1

Service Manual

1

1. Precautions and Safety Notices ································· 3

2. Specification ················································· 4

3. Front Panel Function Control Description ························· 9

4. Adjusting Procedure ········································· 15

5. Trouble Shooting Flow Chart ·································· 18

6. Exploded Diagram and Spare Parts List ·························· 21

7. Block Diagrams ·······································································22

8. Schematic Diagrams ································································23

9. PCB Layout Diagrams ·········································45

TABLE OF CONTENTS

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1. Precautions and Safety Notices

Prior to using this service manual,please ensure that you have carefully followed all the procedures outlined in
the user's manual for this product.

(1) Read all of these instructions.
(2) Save these instructions.
(3) Follow all warnings and instructions a marked on the product.
(4) Unplug this product from the wall outlet before cleaning.Do not use liquid cleaners or aerosol cleaners, use

a damp cloth for cleaning.

(5) Do not use this product near water.
(6) Do not place this product on an unstable cart,stand or tablle.The product may fall,causing serious

damage to the product.

(7) Do not tear up the EMI label, if the label has been destroyed,that must to past same size label on the same

position.

(8) Slots and openings in the cabinet and the back or bottom are provided for ventilation,to ensure reliable

operation of the product and to protect it from overheating,those openings must not be blocked or
covered.The openings should never be blocked by placing the product on a bed,sofa, rug, or other similar
surface.This product should not be placed in a built-in installation less proper ventilation is provided.

(9) This products should be operated from the type of power source indicated on the marketin label. If you are

not sure of the type of power available, consult your dealer or local power company

(10) This product is equipped with a 3-wire grounding type plug,a plug having a third (grounding) pin. This

plug will only fit into a grounding-type power outlet. This is a safety feature, if you are unable to insert the
plug into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat the purpose of
the grounding-type plug.

(11) Pay attention to the code which connects with apheliotropism board of inside panel.and don’t hook it.
(12) Do not allow anything to rest on the power cord.Do not locate this product where persons will walk on the

cord.

(13) If an extension cord is used with this product,make sure that the total of the ampere ratings on the

product plugged into the extension cord to the waplugged into outlet does not exceed 15 ampere.

(14) Never push objects of any kind into this product through cabinet slots as they may touch dangerous

voltage points or short out parts that could result in a risk of fire or electric shock.Never spill liquid of any
kind on the product.

(15) Do not attempt to service this product yourself,as opening or removing covers may expose you to

dangerous voltage points or other risks.Refer all servicing to service personnel.

(16) Unplug this product from the wall outlet and refer servicing to qualified service personnel under the

following conditions :

a.

When the power cord or plug is damaged or frayed.

b.

If liquid has been spilled into the product.

c.

If the product has been exposed to rain or water.

d.

If the product does not operate normally,when the operating instructions are followed.Adjust only those
controls that are covered by the operating instructions since improper adjustment of other controls may
result in damage and will often require extension work by a qualified technician to restore the product to
normal operation.

e.

If the product has been dropped or the cabinet has been damaged.

f.

If the product exhibits a distinct change in performance,indicating a need for service.

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BF3293 panel specification:

Item Specifications
Panel Name AUO

Display pixels 1366 (H) x 768 (V) pixels ( 1 pixel = 1 RGB

Display Area 697.685mm (H) x 392.256mm (V)
Pixel Pitch 0.51075mm
Display Colors 16.7M
Pixel Arrangement R+G+B vertical stripe
Brightness 500cd/m2 typical
Contrast Ratio 1000:1 typical at CR ≧ 10
Viewing Angle ±88° (H), ±88°(V) Typical
Color Chromaticity (CIE) White: X = 0.28 , Y = 0.29

2. Specification

cells )

Frame Rate 50/60Hz
Response Time 10ms typical
Surface Treatment

INPUT Source :

Input &

Output

Signal

AG，3H

Video format

Connector types

OSD

TV Analog TV PAL IEC Type TV (CABLE/AIR)

VIDEO1 Video + L/R Audio CVBS RCA

VIDEO2 Video + L/R Audio CVBS RCA VIDEO2 (REAR)

S-VIDEO S-VIDEO+ L/R Audio Y/C Mini Din 4 Pin VIDEO3 (S-

VIDEO)

4

YPbPr1 Component

(Y, Pb/Cb, Pr/Cr)
+ L/R Audio
Component

YPbPr2

(Y, Pb/Cb, Pr/Cr)
+ L/R Audio

HDMI

HDMI

480i, 480p, 720p,
1080i

480i, 480p, 720p,
1080i

Digital RGB +Digital

Audio

RCA

RCA

HDMI 19 Pin

VIDEO4
(YPbPr1)

VIDEO5
(YPbPr2)

VIDEO6
(HDMI1)

VGA

VGA+ L/R Earphone

L/R Audio RCA STEREO

AUDIO
OUT

Earphone Out

Note:

A. SCART connector

Analog RGB D-SUB 15 Pin

TOSLINK/RCA DIGITAL

COMPUTER
(VGA)

5

B. HMDI connector is a type A receptacle for video/audio mode.

1. TMDS Data 2+ 9. TMDS Data 0- 17. CEC/GND

2. TMDS Data 2 shield 10. Clock + 18. +5V Power

3. TMDS Data 2- 11. Clock shield 19. Hot Plug Detect

4. TMDS Data 1+ 12. Clock -

5. TMDS Data 1 shield 13. CEC

6. TMDS Data 1- 14. NC

7. TMDS Data 0+ 15. DDC CLK

8. TMDS Data 0 shield 16. DDC DATA

C. D-Sub Connector IN. (This function also can provides to HDTV.)

D-Sub type Connector pin assignment

1. Red Video 6. Red Ground 11. GND

2. Green Video 7. Green Ground 12. SDA For DDC1/2B

3. Blue Video 8. Blue Ground 13. H-sync.

4. GND 9. +5V from PC 14. V-sync.

5. Vdd from PC for DDC 10. Sync. GND 15. SCL For DDC1/2B

D. RCA jacks are all female type.

E. Mini DIN CNC 4 Pins (SCN570S3NS00000) for S-video, the pin assignment is

described as below:

1: Ground
2: Ground
3: Y
4: C

HDMI

Format

Level/Impedance

TMDS Mode

Frequency Fh = 31~80 kHz

DVI 1.0

0.5~3.0Vp-p/100 Ohm (Differential),50 Ohm (Single ending)

Single Link

Fv = 56~76 Hz

6

Maximum Pixel Clock

DDC 1/2B

Connector

135 MHz

Compliant with Revision 1.0

HDMI x 1

Analog HD15 PC Signal (RGB)

Format

Level/Impedance

DDC 1/2B

R, G, B Analog

0.7Vp-p / 75

Compliant with Revision 1.0

Sync H/V separate

3V TTL level / 1k

Frequency Fh = 31~80 kHz

Fv = 50~75 Hz

Maximum Pixel Clock

Connector

135 Mhz

Mini D-Sub 15 pin (female) x 1

Video (Composite) CVBS Signal

Format

Level / Impedance

PAL_M, PAL(B,G,H,D,N), SECAM

1.0Vp-p / 75

S-Video (Y/C) Signal

Format

Y, C

Level / Impedance Y: 1.0Vp-p / 75

C: ± 286 mV/ 75

Analog HD15 Video Signal (YPbPr/YCbCr)

Format

Y, Pb, Pr or Y, Cb, Cr

Level / Impedance Y: 1.0Vp-p / 75

Pb/Cb, Pr/Cr: 0.7 ± 0.035Vp-p / 75

HDMI Timing

STANDARD RESOLUTION

V FREQ

Hz

H FREQ

kHz

CLK

MHz

ATSC, 480i 720x480 60 15.7 27

ATSC, 480p 720x480 60 31.5 27

ATSC, 1080i 1920x1080 60 33.7 74.2

ATSC, 720p 1280x720 60 45.0 74.2

ATSC, 576i 720x576 50 15.6 27

RGB PC Timing

STANDARD RESOLUTION

V FREQ

Hz

H FREQ

kHz

CLK

MHz

VGA 640x480 60 31.47 25.16

VGA 640x480 75 37.5 31.5

SVGA 800x600 60 37.88 40

SVGA 800x600 75 46.9 49.5

XGA 1024x768 60 48.36 65.0

XGA 1024x768 75 60.02 78.75

SXGA 1280x1024 60 64 108

MAC 640x480 67 35 30.24

7

Non-VESA 720x400 70 31.5 28

t

y

Video & S-Video AV Timing

STANDARD RESOLUTION

PAL(B,G,H,D,I) 625 50 15.625 14.50

SECAM 625 50 15.625 14.50

PAL-M 525 60 15.734 12.65

PAL-N 625 50 15.625 14.50

HDTV/Component AV Timing

SDTV 525i 720x525 60 15.735 27

SDTV 625i 720x625 50 15.625 27

SDTV 480p 720x480 60 31.5 27

HDTV 720p 1280x720 60 50.0 74.2

HDTV 1080i 1920x1080 60 33.7 74.2

Power Source

Sound Output 10W X2, 8 Ohm.
Signal Connector Pin Assignment

AC100 – 240 V, 60/50 Hz

V FREQ

Hz

H FREQ

kHz

CLK

MHz

Pin Assignment Pin Assignment Pin Assignmen

1. Red 6. Red Ground 11. Ground

2. Green 7. Green Gro und 12. SDA

3. Blue 8. Blue Ground 13. Horizontal S

4. Ground 9. Not Connected 14.

5. Self Test 10. Sync. Ground 15. SCL

Vertical
Sync.

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3. Front Panel Function Control Description

Operation, Adjust and Programming

9

10

11

12

The operation of each OSD controls is described as following table:

Option Description

User

Standard

Movie

Vivid

Sport

Full
Zoom1
Zoom2

Normal

User
Cool

Warm

User

Live
Pop

Rock

Press e/f to change the Picture Mode to be User, Vivid,
Standard, Sport, and Movie

Press e/f to adjust the Brightness from 0 to 100
Press e/f to adjust the Contrast from 0 to 100
Press e/f to adjust the Tint from 0 to 100

Press e/f to adjust the Saturation from 0 to 100

to adjust the Sharpness from 0 to 100

e/f

Switch between user, zoom1, zoom2 and normal in all
video mode

Press e/f to select the color Temperature to be User,
Warm, or Cool

Press e/fto change Sound Mode to be User, Live, POP
and Rock

Press e/fto adjust the Volume from 0 to 100
Press e/fto change the Bass from 0 to 100
Press e/fto change the Treble from 0 to 100
Press e/fto adjust the Balance from 0 to 100

Picture

Audio setup

Picture（not

support VGA）

Brightness

Contrast

Tint（not support

PAL）

Saturation

Sharpness Press

Scale （Input
HDMI, YPbPr

(except 480I ) /

VGA source, does

not support scale

function）

Color temp

Sound mode

Volume

Base

Treble

Balance

Osd setup

TV setup

Mute

English,

German,

French,

Language

(待定)

Time out

Transparency

Sleep time

Reset Recall factory setting.

Auto scan

Fine tune Press e/f to adjust the Fine Tune from -50 to 50

Add/Erase Allow you to add/remove channels.

Italian,

Spanish,

Portugal,

Holland

Poland

TV system

Next

Press e/fto adjust the Mute on or off

Allow you to select a language for all the on-screen menu.

Press e/f to select the Menu Timeout to be 5,10,15,20,25,
30,35,40,45,50,55,60 seconds.

Press e/f to select the Sleep Timer to be 15, 30, 45, 60,
90, 120 minutes or Off.

Allow you to select TV system as PAL / SECAM (default is
AUTO).
Allow you to automatically create a list of receivable
channels.

13

VGA setup

Channel Name Edit the channel name. (Europe only)

Channel Swap Swap the channel location . (Europe only)

Manual Search Search the channel manually

Channel reset

Auto adjust Allows you to auto adjust the display mode.

H-Position

V- Position

Clock

Phase

Controls the width of the picture based on the VGA mode

Allow you to restore a default TV channel table. (TV
only)

Allows you to adjust the position of the picture left and right
in the window

Press VOLUME ( -, +) to adjust the Sharpness from 0 to

100
Allows you to adjust the position of the picture left and right
in the window

Press VOLUME ( -, +) to adjust the Sharpness from 0 to

100

Allows you to improve focus clarity and image stability

Press VOLUME ( -, +) to adjust the Hue from 0 to 100

14

s

n

g

4. Adjusting Procedure

ITEM

Program

Menu.

Equipment

Requireme

Procedure and SPEC

VIDEO
adjustment

1

S-VIDEO DVD

2

DVD
(Y,Cb,Cr) 480i

3

DVD
(Y,Pb,Pr)
480p/720p/1080i

4

HDTV
(Y,Pb,Pr)
720p/1080i

5

DVD
Video Cable

S-Video Cable

DVD
Component Cable

DVD
Component Cable

720p/1080i

DVD Player

Samsung HD-931

HDTV Receiver
ATSC HDTV Tuner
SAMSUNG
SIR-T165
BS Tuner:

Panasonic
TU-BHD300

Component Cable

Play DVD
Set DVD to

interlaced output

Play DVD
Set DVD to

interlaced output

Play DVD(Y,Cr,Cb)
Play DVD
Set DVD to

interlaced output

Play DVD(Y,Pr,Pb)
Set the DVD to

ressive output

pro

Play HDTV
(Y,Pr,Pb)

Screen is clear and fluent

Screen is clear and fluent

Screen is clear and fluent

Screen is clear and fluent

Screen is clear and fluent

D-VHS Digital HDTV Video Cassette Recorder
JVC HM-DH30000U
Panasonic NV-DH2

VGA/HDMI

6

VGA

7

PC
VGA Cable
DVI Cable

TV BOX
VGA Cable

PC Mode 1. Each Mode can display normally。If there

is a specific Mode that is not appropriate
after switching ，press Auto Adjust can

automated adjust to appropriate screen.

2. Confirm PC can automated identify the

model of PDP.

Utilize external-connected TV BOX, watching

the

TV program; the screen is clear and fluent.

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