Daewoo DSA-9310E User manual

http ://svc.dwe.co.kr
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(http://svc.dwe.co.kr)
Service Manual
RECEIVER
CHASSIS : SA-100
MODEL : DSA-9310E
Apr. 2003
S/M No : DSA100BEF0

TABLE OF CONTENTS
1. PRODUCT SAFETY SERVICING GUIDELINES FOR RECEIVERS 3
2. Specification 8
3. Connection Guide and Remote control 9
4. Limited Warranty 12
5. Service Modes and General Adjustment 13
6. Troubleshooting charts 14
7. Part list 21
8. Signal Flow Diagram 40
9. Circuit Daigram 41
10. Explode View 44
11. RCB H/V Output Waveforms 45

1. PRODUCT SAFETY SERVICING GUIDELINES FOR RECEIVERS
-3-
CAUTION : Do not attempt to modify this product in any way. Unauthorized modifications will not only
void the warranty, but may lead to your being liable for any resulting property damage or user injury.
Service work should be performed only after you are thoroughly familiar with all of the following safety
checks and servicing guide-lines. To do otherwise, increases the risk of potential hazards and injury to the
user.
SAFETY CHECKS
After the original service problem has been corrected, a check should be made of the following:
SUBJECT : FIRE & SHOCK HAZARD
1. Be sure that all components are positioned in such a way as to avoid possibility of adjacent component
shorts.
This is especially important on those chassis which are transported to and from the repair shop.
2. Never release a repair unless all protective devices such as insulators, barriers, covers, shields, strain
relief, and other hardware have been reinstalled per original design.
3. Soldering must be inspected to discover possible cold solder joints, frayed leads, damaged insulation
(including A.C. cord), solder splashes or sharp solder points. Be certain to remove all loose foreign
particials.
4. Check for physical evidence of damage or deterioration to parts and components, and replace if
necessary follow original layout, lead length and dress.
5. No leads or components should touch a receiving tube or a resistor rated at 1 watt or more. Lead
tension around protruding metal surfaces must be avoided.
6. All critical components such as fuses, flameproof resistors, capacitors, etc. must be replaced with exact
factory types. Do not use replacement components other than those specified or make
unrecommended circuit modifications.
7. After re-assembly of the set always perform an A.C. leakage test on all exposed metallic parts of the
cabinet, (the channel selector knob, antenna terminals, handle and screws) to be sure the set is safe to
operate without danger of electrical shock. Do not use a line isolation transformer during this test. Use
an A.C. voltmeter, having 5000 ohms per volt or more sensitivity, in the following manner : connect a
1500 ohm 10 watt resistor, paralleled by a 15 mfd. 150V A.C. type capacitor between a known good
earth ground (9water pipe, conduit, etc.) and the exposed metallic parts, one at a time. Measure the
A.C. voltage across the combination of 1500 ohm resistor and 0.15 MFD capacitor. Reverse the A.C.
plug and repeat A.C. voltage measurements for each exposed metallic part. Voltage measured must not
exceed 0.75 volts R.M.S. This corresponds to 0.5 milliamp A.C. Any value exceeding this limit
constitutes a potential shock hazard and must be corrected immediately.

PRODUCT SAFETY SERVICING GUIDELINES FOR RECEIVERS
-4-
<Figure 1>
GRAPHIC SYMBOLS :
The lightning flash with arrowhead symbol, within an equilateral triangle, is
intended to alert the service personnel to the presence of uninsulated dangerous voltage that may be of
sufficiency magnitude to constitute a risk of electric shock.
The exclamation point within an equilateral triangle is intended to alert the service personnel to the
presence of important safety information in service literature.
RISK OF-FIRE REPLACE FUSE AS MARKED
The symbol is explained in the service manual with the following wording or equivalent.
CAUTION : FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE
ONLY WITH SAME TYPE (2A, 250V) and
ATTENTION : AFIN D ASSU UNE PROTECTION PERMANENTE CONTRE LES
RISQUES D INCENDIE, REMPLACER UNIQUE-MENT PAR UN FUSIBLE DE MEME
TYPE ET DE 2A, 250V .
10WATT
GOOD EARTH GROUND
SUCH AS THE WATER
PIPE, CONDUIT, ETC.
1500 OHM
A.C. VOLTMETER
PLACE THIS PROBE
ON EACH EXPOSED
METAL PART
0.15 uF

PRODUCT SAFETY SERVICING GUIDELINES FOR RECEIVERS
-5-
Pull a plug out of socket when receiver is not
in use for a long time or during a lightening
srorm
Do not handle the power cord with wet hand.
Do not pull the power cord to pull a plug out of
the socket.
Do not make any modigications.
Naver attempt to disassemble the unit.
Do not place any liquid container on top of
RECEIVER
If water spills into RECEIVER, an electric
short may occur which can cause fire.
Do not overload wall outlets and extension
cords. It may result in power failure.
When strange noise or smell from RECEIVER,
stop all operations and pull out plug. And then
contact with Service Center.
SUBJECT : TIPS ON PROPER INSTALLATION

PRODUCT SAFETY SERVICING GUIDELINES FOR RECEIVERS
-6-
Keep RECEIVER safe from any foreign
objects.
Put RECEIVER in the place of moderate
temperature of 5-40 degrees.
If not, it may cause a damage or shorten
Lifetime of RECEIVER.
Do not lay heavy objects on RECEIVER.
Place RECEIVER on plane stable place
If not, RECEIVER may fall off or tip over
causing injury or damage.
Be sure to disconnect all cables before moving
RECEIVER.
Do not put RECEIVER in the place of humid
or dusty, or in the place near oil, smoke or
steam.

PRODUCT SAFETY SERVICING GUIDELINES FOR RECEIVERS
-7-
Do not put RECEIVER under the sunlight or
mear heating units.
It may cause a damage or shorten lifetime of
RECEIVER.
Keep RECEIVER away from magnet of
vibration.
Do not plug in when shape of socket is not
match with plug.
Do not use water or oil to clean.
Do not put two buttons of temote controller in
the same time
Naver attempt to disassemble temote
controller.
Put RECEIVER in the place of easy to
ventilation
Space more than 10cm rear and 5cm side from the
wall is better to use.
It may cause blurred color of screen and a
damage.

2. Specification
-8-
General Power Requirement 100-250V~, 50/60Hz
Power Consumption 15W
Dimension(W/H/D) 350 X 73 X 258.5 mm
Weight 2.8 Kg
Antenna 75 ohm Unbalanced Type
(DIN Standard)
Video Video System(RF) PAL - B/G, D/K, I/I
SECAM - B/G, D/K, L/L
(External) PAL / SECAM / NTSC
Video Output
Picture RGB 640*480, 60P
H 31.4Khz
V 60Hz
Teletext RGB 800*600, 60P
H 37.8Khz
V 60Hz
Sound Sound System All A2 systems
All NICAM systems
Audio Ouput L / R
Input/Output Terminals RF Antenna Input 1ea
AC Input 1ea
SCART(RGB, CVBS, L/R) 2ea
RCA V/L/R 1each
S-VHS 1each
RCA V/L/R 1each
PC Input RGBHV 1ea
Sound (L/R) 1each
Monitor Output(RGB/H/V) 1ea
Sound Output (L/R) 1each
SCART Output(V/L/R) 1ea

3. Connection G ide and Remote control
-9-
Connecting with Monitor
Connect D-SUB input of Monitor to the output terminal of D-SUB output of the RECEIVER.
Connect input of speaker to audio output terminal of the RECEIVER.
PC INPUT
L
AUDIO
R
RECEIVER
MONITOR
MONITOR BACK

Connection G ide and Remote control
-10-
Connecting with an Aerial
Plug the aerial into the coaxial socket.
Notice : This RECEIVER can receive PAL/SECAM except PAL M/N via antenna.
RECEIVER
RECEIVER

Connection G ide and Remote control
-11-
Remote Control overview
Caution
- Do not drop, avoid moisture, heat, and dust.
How to install the batteies(not supplied).
- Push to open the cover of the Remote Control
- Set the Batteries in the battery (cell), compartment after checking the polarities(+/-),
and then, shut the cover(battery type AA ).
MUTE BUTTON
Switches the sound
on or off.
POWER BUTTON
MULTIMEDIA
BUTTON
SOUND BUTTON
RECALL BUTTON
DIRECTION
BUTTONS
VOLUME
BUTTONS
PREV BUTTON
PROGRAM
BUTTONS
MENU BUTTON
TV/TEXT BUTTON
DISPLAY POWER
BUTTON
TV/AV BUTTON
PIP BUTTON
NUMBER
BUTTONS
POP BUTTON
SWAP BUTTON
2PICTURES
BUTTON
TV/VIDEO BUTTON
Switches the
TV/VIDEO of sub
picture
TELETEXT
BUTTONS

4. Limited Warranty
-12-
Daewoo Electronics warrants this product to be free from defects in material and workmanship and
agrees to remedy and such defect.
This warranty covers 3 years labor and 3 years parts from the date of original purchase.
This warranty applies only to product purchased from authorized Daewoo Electronics dealer and used
within the boundaries of EUROPE.
This warranty does not apply to product that has been improperly installed subjected to usage for which
the product was not designed, misused or abused, damaged during transportation, or which has been
altered or repaired in any way that affects the reliability or detracts from its performance.
HOW YOU GET WARRANTY SERVICE
Warranty service can only be provided by an authorized Daewoo electronics Service Center. For the
closest authorized service center to you, please contact your dealer. In order to receive warranty service
you must provide the authorized service center with a copy of proof of purchase, signifying the date of
purchase and the name of the dealer from whom you purchased the product
STATUTORY WARRANTIES
The purchase may gave rights under existing provincial or federal laws, and where terms of this warranty
are prohibited by such laws, they are deemed null and void, but the remainder of the warranty shall
remain in effect.

5. Service Modes and General Adj stment
-13-
1. Entering to service modes
Power Off
1Mute Recall Mute
Power On
1 : PR setting for Line test
2 : Factory setting
2. General Adjusting
No need to adjust
Notice
After replacing a new assembly, the rest adjustments are no need.

6. Tro bleshooting charts
-14-
No Main Picture(RF)
Check Mode (RF or AV)? AV No Main Picture(AV)
Check Input RF Signal
Check Antena and cable
Check Tuner CVBS Output
T302 #19
Repair or Replace T302
Check Switched Video input
IC201 #3
Repair or Replace Q202
Check Main Video output
IC201 #43, IC500 #183
Repair or Replace IC201
Picture RGB/H/V
IC500 #27 #28 #29 #34 #35
Repair or Replace IC500
OSD is on the screen.
Check OSD RGB/Fblk
IC701 #105, 112,113,114
Check RGB/ H / V
IC708 #16 #13 #11 Repair or Replace IC701
IC710 #4 #10
Repair or Replace IC708
IC710
Check D-SUB cable
Change cable
O.K.

Tro bleshooting charts
-15-
No Main Picture(AV)
Check Mode (RF or AV)? RF No Main Picture(RF)
Check Input Terminal
Replace Terminal and cable
Check External CVBS
CVBS AV1 (IC201 #54)
AV2 (IC201 #4)
AV3 (IC201 #56)
AV4 (IC201 #55)
Check path
Check Switched Video output
IC201 #43
Repair or Replace IC201
Check External S-VHS
YC(IC500 #185 #196)
Picture RGB/H/V
IC500 #27 #28 #29 #34 #35
Repair or Replace IC500
OSD is on the screen.
Check OSD RGB/Fblk
IC701 #105, 112,113,114
Check RGB/ H / V
IC708 #16 #13 #11
IC710 #4 #10
Repair or Replace IC708
IC710
Check D-SUB cable
Change cable
O.K.

Tro bleshooting charts
-16-
No Main Picture(RGB)
Check Mode (RF or AV)? RF No Main Picture(RF)
Check Input Terminal
Replace Terminal and cable
Check External RGB
RGB AV1 (IC201 #50 #51 #52)
AV2 (IC201 #5 #6 #7)
STATUS AV1 (IC201 #10)
AV2 (IC201 #12)
Check path
Check External RGB
RGB(IC302 #1 #2 #3)
Repair or Replace IC201
Check Digital RGB
RGB(IC302 #31~34, #37~40)
Repair or Replace IC302
Picture RGB/H/V
IC500 #27 #28 #29 #34 #35
Repair or Replace IC500
OSD is on the screen.
Check OSD RGB/Fblk
IC701 #105, 112,113,114
Check RGB/ H / V
IC708 #16 #13 #11
IC710 #4 #10
Repair or Replace IC708
IC710
Check D-SUB cable
Change cable
O.K.

Tro bleshooting charts
-17-
No Power
Check AC input
Replace Terminal and AC cable
Check Power Module
P504 Input Voltage(Table)
Repair or Replace Power Module
The Stand-by LED doesn’t light up RED.
Repair P703,P704 Connector
Front Board
Check Micom Crystal and Ever VDD
IC701 #108,109, VDD (+3.3V_E)
Repair or Replace IC701
Check Power On Pulse
IC701 #90 = "Low",
IC508, 509, 510
Repair or Replace IC Regulator
O.K.
Table
P504A Voltage(When No Load)
#1 29.7V
#2 GND
#3 GND
#4 6.2V
#5 6.2V
#6 6.2V
#7 12.6V
#8 -13.5V
#9 3.4V
#10 3.4V
#11 3.4V
#12 3.4V
#13 GND
#14 GND
#15 GND

Tro bleshooting charts
-18-
No Sound
Check Input Signal/Terminal Check Input Signal/Terminal
Check Tuner SIF Output Check External sound Input
(T302 #17) AV3 (IC301 #47 #48)
AV2 (IC301 #50 #51)
AV1 (IC301 #53 #54)
AV4 (IC301 #56 #57)
(<--IC201 #16 #17)
Repair or Replace T302 or Path
Check Loud Output
(IC301 #26 #27)
Repair or Replace IC301
Check Amp Output
(IC304, IC305 #7)
Repair or Replace IC304, 305
Check Connector(P501) & Cable
Replace
O.K.

Tro bleshooting charts
-19-
No Sub Picture(CVBS & Y/C)
Check Mode (CVBS or YC/RGB) YC/RGB No Sub Picture(YC/RGB)
Check Input Signal/Terminal
Replace Terminal and cable
Check External CVBS(RF:AV)
CVBS AV1 (IC201 #54)
AV2 (IC201 #4)
AV3 (IC201 #56)
AV4 (IC201 #55)
Check path
Check Switched Video output Check Sub RF CVBS(AV/RF)
IC201 #43 Sub Tuner (T301 #19)
Check External Y/C
IC302 #71#72
Repair or Replace IC201
Check Digital RGB Main Input Port Change
RGB(IC302 #31~34, #37~40) Main Tuner (IC500 #183)
Repair or Replace IC302
Picture RGB/H/V
IC500 #27 #28 #29 #34 #35
Repair or Replace IC500
Check RGB/ H / V
IC708 #16 #13 #11
IC710 #4 #10
Repair or Replace IC708
IC710
Check D-SUB cable
Change cable
O.K.

Tro bleshooting charts
-20-
No Sub Picture(RGB)
Check Mode (CVBS& YC or RGB) CVBS No Sub Picture(CVBS & YC)
Check Input Signal/Terminal
Replace Terminal and cable
Check External RGB
RGB AV1 (IC201 #50 #51 #52)
AV2 (IC201 #5 #6 #7)
STATUS AV1 (IC201 #10)
AV2 (IC201 #12)
Check path
Check External RGB
RGB(IC302 #1 #2 #3)
Repair or Replace IC201
Check Digital RGB Main Input Port Change
RGB(IC302 #31~34, #37~40) Main Tuner (IC500 #183)
Repair or Replace IC302
Picture RGB/H/V
IC500 #27 #28 #29 #34 #35
Repair or Replace IC500
Check RGB/ H / V
IC708 #16 #13 #11
IC710 #4 #10
Repair or Replace IC708
IC710
Check D-SUB cable
Change cable
O.K.