Hyundai H-LCD1504 User manual

Service Manual
LCD TV
H-LCD1504
rev. 1.01
Include: 2006-07-31
HYUNDAI Electronics Service Support Team RUS

2
CONTENTS
1 CONTENTS ----------------------------------------------------------------------------1
2 Product Code illumination and Series Introduction----------------------2
3 Features ---------------------------------------------------------------------------------3
4 Safety Precautions-------------------------------------------------------------------4
5 Warning and Cautions--------------------------------------------------------------5
6 Net dimension------------------------------------------------------------------------11
7 Remote Controller Functions----------------------------------------------------13
8 BUS Control Adjustment ------------------------------------------------------
9 Principle ICSand trouble shooting --------------------------------15
10 Circuit Diagram-----------------------------------------------------------------------19
11 Exploded View-------------------------------------------------------------------------30
12 List Of Parts---------------------------------------------------------------------------32
13 Damageable Parts List--------------------------------------------------------------47
14 Information of Resistors and Capacitors-------------------------------------48

2. Product Code illumination and Series Introduction
L
3
15 S V6- A 0
Aspect ratio: 4:3
National
Model series of cabinet Numbe
r
TFT: samsung
Screen size: 15inch
LCD

4

5

6
3. Features
Model Model
序号 Functions L15SV6-A0 序号 Functions L15SV6-A0
1TFT samsung 28 TV in Yes
2Screen size 15inch 29 D-SUB jack Yes
3Aspect ratio 4:3 30 DVI socket No
4Resolution 1024×768 31 SCART socket Yes
5Brightness 400cd/m2 32 Ear-Phone Out Yes
6
Contrast(Darkro
om) 400:1 33 TELETEXT Yes
7
Response
time(ms) 25 34
Semitransparent
menu No
8Color system PAL/SECAM 35 ZOOM No
9
NO.of preset
channels 200 36 16:9 mode No
10 Picture mode Yes 37 Child Lock Yes
11 Angel of view 140o38 Quick View Yes
12 Color display 16777216 39 On/Off Time Yes
13 Color level 16 40 PIP No
14 OSD languages 8 41
NO. of built-in
speakers 2
15 AV stereo Yes 42
NO. of outer
speakers No
16
Surrounding
sound No 43
Audio output
power(Built-in)(W) 1.5W×2
17 Audio system DK/BG/I 44
Audio output
power(outer)(W) No
18 Bass No 45 Total power input（W）48W
19 Balance Yes 46 Voltage range（V）AC220V
20 Sound mode Yes 47 Power frequency（Hz）50~60Hz
21 Mute Yes 48
Time of sleep
timer(MINS) 240Min
22 NICAM Yes 49 Net weight(KG) 5.4Kg
23 AV input Yes 50 Gross weight(KG) 6.8Kg
24 AV output No 51 Net dimension(MM) 170*419*353
25 Y CbCr No 52
Packaged
dimension(MM) 185*480*435
26 Y PBPRNo 53 Approval CE
27 S-video jack Yes 54 Suitable market
Europe
4.

7

8
◆Installation
 Locate the receiver in the room where direct light does not strike the screen.
Total darkness or a reflection on the picture screen can cause eyestrain.
Soft and indirect lighting is recommended for comfortable viewing.
 Allow enough space between the receiver and the wall to permit ventilation.
 Avoid excessively warm locations to prevent possible damage to the cabinet or premature component
failure.
 This TV receiver can be connected to AC 100~220 Volts. 50/60 Hz. Never connect to DC supply or
any other power supply.
 Do not install the receiver in a location near heat sources such as radiator, air ducts, direct sunlight, or
in a place somewhere like close compartment and close area.

Do not cover the ventilation openings when using the set.
◆Caution
Never tamper with any components inside your set, or any other adjustment controls not mentioned in this
manual.
The LCD panel is a very high technology product with over 900000 thin film transistors, give you fine
details.
Occasionally, a few non-active pixels may appear on the screen as a fixed point of blue, green or red.
Please note that this does not affect the performance of your product.

5. Warnings and Cautions
9
A.
Warning
High voltages are used in the operation of this product.
Do not remote the cabinet back from your set. Refer
servicing to qualified service personnel.
Warning
To prevent fire or electrical shock hazard, Do not expose
the main unit to rain or moisture.
Warning
Do not drop or push objects into the television cabinet slots or
openings. Never spill any kind of liquid on the television
receiver.
Caution
!
Minimum
If the television is to be built into a
compartment or similarly enclosed, the
minimum distances must be maintained.
Heat build-up can reduce the service life
of your television, and can also be
dangerous.
Caution
Never stand on, lean on, push suddenly the product or its
stand. You should pay special attention to children to children.
!
5cm
10c
20c
10c

10
Caution
!
Do not place the main unit on an unstable cart stand, shelf or
table. Serious injury to an individual, and damage to the
television, may result if it should fall.
!
Caution
When the product is not used for an extended period of time, it
is advisable to disconnect the AC power cord from the AC
outlet.
Caution
!
Avoid exposing the main unit to direct sunlight and other
source of the heat. Do not stand the television receiver
directly on other produces which give off heat. E. g. video
cassette players,Audio amplifiers. Do not block the ventilation
holes in the back cover. Ventilation is essential to prevent
failure of electrical component. Do not squash power supply
cord under the main unit.
Caution
The LCD panel used in this product is made of glass. Therefore, it can break when the product
is dropped or applied with impact. Be careful not to be injured by broken glass pieces in case the LCD
panel breaks.
!

REPLACEMENT OF MEMORY IC
1. MEMORY IC.
This LCD TV uses memory IC. In the memory IC are memorized data for correctly operating the video and
sound circuits. When replacing memory IC, be sure to use IC written with the initial value of data.
2. PROCEDURE FOR REPLACING MEMORY IC
(1) Power off
Unplug the +12V power plug from +12V power socket.
(2) Replace IC
Be sure to use memory IC written with the initial data values or blank memory IC.
(3) Power On
Plug the +12V power plug into +12V power socket. (If memory IC is blank, the program will take 25s to
initial memory IC.)
(4) Check and set SYSTEM default value:
1) Press “Menu” key into “SOUND” menu, then press digital key “6”,”4”,”8”,”3” on the Remote control
unit continuously for factory used.
2)The “M” will be displayed on the screen.
3)Press digital key, (Mkey) and corresponding on-screen display will be appeared.
4) Check the setting value of the SYSTEM default value of Table below. If the vale is different, select
items by [CH+]/[CH-] keys and set value by [VOL+]/[VOL-] keys.
5) Press “STANDBY” key again and return to the normal screen.
6. Net dimension
11

7. Remote Controller Functions
TV/AV Select
(Ref; P7.)
Sound Volume
Up/Down
（Ref; P6）
Power/Standby
(Ref; P6)
Program Up/Down
(Ref.P6)
MENU
(Ref.P6)
Mute
(Ref.P7.)
Child Lock
(Ref.P8)
Call
(Ref.P7.)
Direct Access Numeric
Keys
(Ref.P6)
Quick View
(Ref.P7)
Picture Effect
(Ref.P8.)
Teletext
(Ref.P11，P12)
?
TV/AV
TEXT
QV
0
9
8
7
6
4 5
3
1 2
-/--
MIX
SUBCODE CANCEL
TIMER
PICTURE
REVEAL
SOUND
V+
HOLD
V-
P+
MENU
P-
S
Sound Effect
(Ref.P8.)
Teletext
(Ref.P11)
12

8. BUS CONTROL ADJUSTMENT
A.
To enter BUS control mode, Press “Menu” key into “SOUND” menu, then press digital key “6”,”4”,”8”,”3”
on the Remote control unit continuously for factory used. Press “0” to “9“ key, (Mkey) and corresponding
on-screen display will be appeared.On TV screen “M” will be indicated, this means entered bus control
mode.And press following key, each function will be available.
M1 M2 M3
0
9
8
7
6
4 5
3
1 2
[M1] menu
Receive PAL standard Complete pattern signal.
Adjustment steps
a) Adjust V. SLOPE, to the center horizontal line just appeare from half bottom shadow. And to
avoid the field jitter.
b) Adjust V. SIZE, to avoid the field jitter.
c) Adjust H.SHIFT, to get the picture horizontal center correspond to the panel horizontal center.
d) Adjust OSD.V.POS, to get the OSD vertical position correspond to the panel .
e) Adjust OSD.H.POS, to get the OSD horizontal position correspond to the panel .
f) Adjust MS.V.POS, to get the picture vertical position correspond to the panel.
g) Adjust MS.H.Shift, to get the interlaced mode line shift ,and to to avoid horizontal line jitter.
h) the other is fixed.
Receive NTSC signal and repeat above adjustment.
[M2] menu
AGC Adjustment
a)Receive 60dBµ(1mV)VHcolour bar pattern signal, adjust AGC value,(voltage from high to low), to
noise reduce gradually and just disappeared point.
b) the other is fixed.
[M4] menu
a) Sub Brightness adjustment.
b) Sub Contrast adjustment.
c) Sub Colour adjustment.
d) Sub Sharpness adjustment.
e) Sub Tint adjustment.
f) Adjust MS B Delimiter, to get the value correspond to the brightness, below the value, adjustable
brightness from UOC, otherwise adjustable brightness from the scaller.
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14
g) Adjust MS B MAX, to limit the maximum adjustable brightness for the scaller.
h) Adjust MS B MIN, to limit the minimum adjustable brightness for the scaller.
i) Adjust MS C Delimiter, to get the value correspond to the contrast, below the value, adjustable
contrast from UOC, otherwise adjustable contrast from the scaller.
j) Adjust MS C MAX, to limit the maximum adjustable contrast for the scaller.
k) Adjust MS C MIN, to limit the minimum adjustable contrast for the scaller.
l) White balance adjustment
Adjust BR COEF, BG COEF,BB COEF, to adjust dim area in white balance.
Adjust CR COEF, CG COEF,CB COEF, to adjust bright area in white balance.
[M7] menu
a) Adjust Standard BRI, Standard BRI, Standard COL, to get state correspond to the standard picture
mode.
b) Adjust Sharp BRI, Sharp BRI, Sharp COL, to get state correspond to the dynamic picture mode.
C) Adjust Soft BRI, Soft BRI, Soft COL, to get state correspond to the soft picture mode.
B.
ICs Default Settings
15”
MI 项目 预置值 MI 项目 预置值
M1 50Hz 60Hz M6 OSO 0
V.SLOPE 24 24 AGC SPEED 0
V.SHIFT 32 32 FFI 0
V.SIZE 20 20 FSL 0
V.SC 32 32 FMWS 1
H.SHIFT 47 56 PH2 0
OSD.V.POS 16 8 RPO 1
OSD.H.POS 28 23 NTSC MATRIX USA
MS.H.SHIFT 1 2
MS.V.POS 49 40 M7 LOGO OPTION 0
RGB.H.SHIFT 32 LOGO SIZE 0
PROGRAM
NO.
0 LOGO Position
0
M2 AGC 31 LOGO COLOUR 0
WIDE 20 LOGO 0
ZOOM 63 Standard BRI 60
SEARCH
SPEED 0 Standard CON 70
SHIPPING 0 Standard COL 50
M3 BT 60 SHARP BRI 65
CT 70 SHARP CON 75
SC 0 SHARP COL 65
RB 32 SOFT BRI 55
GB 32 SOFT CON 55

15
RD 32 SOFT COL 40
GD 32 COOL BD 32
BD 32 WARM RD 32
M4 SUB
Brightness 28 M8 AV CONFIG 0
SUB
CONTRAST 24 YD PAL 12
SUB COLOUR 50 YD NTSC 8
SUB
Sharpness 45 YD SECAM 8
SUB TINT 31 YD AV 8
MS B Delimiter 70 SC Brightness 32
MS B MAX 165 CSTHDEL 8
MS B MIN 90 UOC VOLUME 42
MS C Delimiter 70 BAND MODE 0
MS C MAX 180 START ON 2
MS C MIN 90 HEADPHONE 0
BR COEF 122 SRS 0
BG COEF 127 START TIME 10
BB COEF 115 M9 TXTDEF 0
CR COEF 118 SPANISH BIT 0
CG COEF 127 NOT0 1
CB COEF 115 NOT1 1
BKLT ADJ
Mode 1 NOT2 1
M5 IF 38.9MHz NOT3 1
DK 1 NOT4 1
I 1 NOT5 1
BG 1 ENGLISH 1
M 0 FRENCH 1
SIF Priority BG RUSSIAN 1
PIN5 RGB TURKISH 1
Video Out CVBS FARSI 1
DUAL OUT 0 ARABIC 1
AUTO SOUND 1 ITALIAN 1
TDA9874 AVL 1 DEUTCH 1

16
9.Principle ICS and trouble shooting
A. ICs functional description
TDA93XX Function:
TV signal processor with embedded µ-Controller
SYMBOL PIN DESCRIPTION
P1.3 1 3 Wires serial bus chip select, active high
SCL 2 I2C-bus clock line
SDA 3 I2C-bus data line
P2.0 4 Audio mute
SCART_DET 5 SCART SW input, active high
KEY 6 Control keys input *3
P3.2 7 Panel power supply control, active high
P3.3 8 Standby output, active high
VSSC/P 9 Digit ground for µ-controller core and periphery
P0.5 10 Red LED input
P0.6 11 Blue LED input
VSSA 12 Analog ground of teletext decoder and digital ground of
TV-processor
SECPLL 13 SECAM PLL decoupling
VP2 14 2nd supply voltage TV-processor(+8V)
DECDIG 15 decoupling digital supply of TV-processor
PH2LF 16 Phase-2 filter
PH1LF 17 Phase-1 filter
GND3 18 Ground 3 for TV-processor
DECBG 19 Band gap decoupling
AVL 20 Automatic volume leveling
VDRB 21 Vertical drive B output
VDRA 22 Vertical drive A output
IFIN1 23 IF input 1
IFIN2 24 IF input 2
IREF 25 Reference current input
VSC 26 Vertical sawtooth capacitor
TUNER AGC 27 Tuner AGC output
AUDEEM 28 Audio deemphasis
DECSDEM 29 Decoupling sound demodulator or SIF input 2
GND2 30 Ground 2 for TV processor
SNDPLL 31 Narrow band PLL filter
REF0 32 Subcarrier reference output
HOUT 33 Horizontal output
FBISO 34 flyback input/sandcastle output

17
AUDEXT 35 NC
EHTO 36 EHT/overvoltage protection input
PLL IF 37 IF-PLL loop filter
IFVO/SVO 38 IF video output / selected CVBS output
VP1 39 supply voltage TV processor
CVBS INT 40 internal CVBS input
GND1 41 ground for TV processor
CVBS/Y 42 CVBS/Y input
CHROMA 43 C input
AUDOUT/AMOUT *1 44 audio output /AM audio output (volume controlled)
INSSW2 45 2nd RGB / YUV insertion input
R2/VIN 46 2nd R input / V (R-Y) input / PR input
G2/YIN 47 2nd G input / Y input
B2/UIN 48 2nd B input / U (B-Y) input / PB input
BCLIN 49 beam current limiter input
BLKIN 50 black current input / V-guard input
RO 51 Red output
GO 52 Green output
BO 53 Blue output
VDDA 54 digital supply of TV-processor (3.3 V)
VPE 55 OTP Programming Voltage
VDDC 56 digital supply to core (3.3 V)
OSCGND 57 oscillator ground supply
XTALIN 58 crystal oscillator input
XTALOUT 59 crystal oscillator output
RESET 60 reset
VDDP 61 digital supply to periphery (+3.3 V)
P1.0 62 3 Wires serial bus clock
P1.1 63 3 Wires serial bus data
IRIN 64 Remote control signal input.
VHC4052 Function: Video switch
Symbol Pin Function Symbol Pin Function
Y0 1 C input for S-video AV1R 16 VCC (5V)
Y2 2 Not used P2 15 CVBS input
Y 3 C output AV2R 14 Y/CVBS input for SCART
Y3 4 Not used CPS1 13 Y/CVBS output
Y1 5 C input for SCART AV2L 12 Y input for S-video
INH 6 GND X3 11 Not used
VEE 7 GND A 10 VIDEO SET1
GND 8 GND B 9 VIDEO SET2

18
VHC4052 truth table
Input “ON” CHANEL
B A X Y
L L 0X 0Y
L H 1X 1Y
H L 2X 2Y
H H 3X 3Y
TDA9859 Function: Universal Sound processor
Symbol Pin Function Symbol Pin Function
AV1L 1 AV1 Audio Left input AV1R 32 AV1 Audio input Right
P1 2 Not used P2 31 Not used
MAINL 3 Main Audio Left input AV2R 30 AV2 Audio input Right
CSMO 4 Smoothing Capacitor CPS1 29 Pseudo stereo Cap. 1
MAINR 5 Main Audio Right input AV2L 28 AV2 Audio input Left
VP 6 Power Supply CPS2 27 Pseudo stereo Cap. 2
OUT R 7 Right Output OUT L 26 Left Output
GND 8 Ground MAD 25 Not used (GND)
LINOR 9 Line Output Right LINOL 24 Line Output Left
LINIR 10 Line Input Right LINIL 23 Line Input Left
CBR1 11 Bass Cap. Right 1 CBL1 22 Bass Cap. Left 1
CBR2 12 Bass Cap. Right 2 CBL2 21 Bass Cap. Left 2
Headphone R 13 Headphone-R output Headphone L 20 Headphone-L output
CTR 14 Treble Cap. Right CTL 19 Treble Cap. Left
MAINOR 15 Main Audio out Right MAINOL 18 Main Audio out Left
SCL 16 I2C Bus clock SDA 17 I2C Bus data
B. IC voltages
TDA93XX
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
V 1.0 3.8 3.6 0 0 3.3 3.3 3.3 0 3.5 0 0 2.3 7.9 5 2
PIN 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
V 3.9 0 3.9 2.8 2.1 2.2 1.8 1.8 3.8 3.8 1.9 3.1 2.2 0 2.2 0.2
PIN 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
V 2.8 0.8 3.6 1.2 2.4 3.2 8 3.8 0 3.3 1.5 3.2 0.1 2.5 2.5 2.5
PIN 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
V 3.6 3.1 3.5 3.5 3.4 3.3 0 3.3 0.1 1.9 1.8 0 3.5 4.9 4.9 5

19
TDA9859
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14
V 4.0 0 4.0 8.0 4.0 8.0 4.0 0 4.0 4.0 4.0 4.0 4.0 4.0
PIN 15 16 17 18 19 20 21 22 23 24 25 26 27 28
V 4.0 4.5 4.6 4.0 4.0 4.0 4.0 4.0 4.0 4.0 0 4.0 4.0 4.0
PIN 29 30 31 32
V 4.0 4.0 0 4.0

20
C. Trouble Shooting
Before arranging for service, firstly know the status and then check simply as follows:
Problems Check
No picture or sound. Check if the power supply is plugged in.
Check if the power switch is in “on’” position.
Picture is OK, no sound. Check if the volume control is set to the minimum or mute
position.
Remote control doesn’t
work.
Check if the power switch is in “on” position.
Check if the batteries are out of use or not connected well.
Make sure that there is no strong light striking the sensor
window of remote control unit.
Check there are no obstacles between the sensor window and
remote control unit.
No TV signal. Check if the TV/AV button is not set to TV status.
Check if the antenna is well connected.
Check if you installed the TV correctly.
No external video signal. Check if you installed the TV correctly.
Check if the TV/AV button is set to AV position.
Picture lacks colour or
picture too dark.
Check colour, brightness and contrast controls are correctly
adjusted.
All channels lose colour
intermittently.
Check if the antenna is broken.
Check if the antenna is disconnected.
Check if the antenna is damaged.
Poor reception, loss of
colour with certain
channels.
Check if channels are correctly tuned (see “Fine tuning”).
Diagonal stripes appear on
picture.
The receiver may be affected by interference (e.g. from
nearby radio broadcasting transmitter or from another TV
receiver).
Picture has “snow”. Check if the antenna is broken.
Check if the antenna is disconnected.
Check if the antenna is damaged.
Ghost images appear. Check if the antenna direction has been changed by a storm
or strong wind, etc. (because ghost images are caused by the
arrival at the antenna of both the signal which has traveled
directly from the transmitter and the signal which has been
reflected from a hill or a large building. The direction of the
antenna should be chosen for minimized ghosting.)