Hyundai HQL320WR User manual

Model. HQL260WR/320WR
Service Manual

--1--
1 A/V Circuit BLOCK Diagram
1) PC Mode
PC inputs, R, G, B , , and V signals, are entered through D-S ub 15pin
(DSUB1). They are en tered into the DTV/PC sele ction switch, B A7657
(U30). When PC is se lected in MCU, the signals are entered into the AD
converter, AD9883 (U21).
In AD9883, the signals are converted into 24 bits and entered into scaler
gm6015.
BA7657 selec ts PC when pin16 is high and selects DTV when pin 16 is low.
AD9883 is controlled using the SDA/SCL line of pin 57/56.
PC input resolution is fh: 30~61k and fv: 56~75 z, and the maximum
resolution is 1024x768 at 75 z.
If the resolution is above the specifications, an out of range m essage is
displayed on the upper left hand corner of the screen. owever, even if the
resolution is within the specified range, if the input timing is different from
the timing indicated on the manual, not supporded video, a message
can be displayed. The Geometry Adjust function, which is used to adjust the
picture position and size, should be carried out in the Windows desktop screen h.
or full cross hatc The DTV signals, 480p, 720p, and 1080i, from the set-top box
with a D-Sub out port, can be received through the D-Sub port and displayed
in the PC mode.

--2--
Hyundai ImageQuest LCD TV HQL260WR/320WR
2) DTV Mode
DTV signals are entered as Y, P b(Cb), and Pr(Cr) component signals,
separated into Y, Cb, Cr and entered to BA7 657.
If pin 16 is low, DTV signals are entered into ADC9883.
In the AD9883, like the PC signals, the DTV signals are converted to 24 bits
and entered into scalar gm6015.
DTV signa l is composed of 480p (50/60 z) for SD, 720p (50/60 z) for D,
and 1080i (50/ 60 z). If the video signal, 480i component (DVD component
output), is entered, the screen will not display properly. Also,
because synchronization signal
if the connections are incorrect, it will not operate properly
is in Y singal color Data is in Cr/Cb
3) S-Video
S-Video signals are entered as Y/ C signals, which is composed of Luminance
color signals. The NT SC and PAL/SECAM are automatically detected by the
video decoders, main VPC3230 and sub VPX3226, and converted to Y (8bits)
and UV (8bits) and sent to the Scaler IC, gm6015
S-Video input and composite video input share a single audio jack.
Therefore, while the pictures for the two inputs can be viewed at the same
time, only one of the sounds can be heard.
4) Video
Video signal is a composite signal that combines the Luminance(Y) and color
(C ROMA) .
It is entered through the main VPC3230 and sub VPX3226,and sent to the sealer IC, gm6015.
IC, gm6015.
When the
Scart supports (CVBS Signals, RGB(Full-Scart) and Audio Right Left The S-Video Signals in not
Supported.
CVBS Signal is recongnized by DC Level at PIN #8 in Scant and RGB Signal is
recognized by DC Level at Pin #16
video input is displayed on the main screen,
if it is displayed on the PIP - screen
5) Scart Mode

--3--
6) Supported PIP Table(PAL)
Sub
Main PC DTV TV S-Video Scart1( ) Scart2( )
PC X
X
X O O
O
O
O
O
O
O
DTV X X O
TV O O O OOO
O
O
O
O
OOO
OO
O
O
O
O
O
OO
O
O
O
O
O
OOO
OO
S-Video X O O O
Video AV1
Video AV1 Video AV2
Video AV2
X O O
X O
O
Scart1(F)
Scart2( )
O O X
X
X
X
O O
X: Not supported, O: Supported
7) Scaler Output
Scaler output signals, R, G, and B (each 8bits), are outputted as 24bit TTL
signal, converted into LVDS signal in the LVDS converter, T C63LVDM83R(UI)
and sent to the logic B/D in the LCD module.
8) Audio part
Audio input port for each mode:
Input Port Remark
PC/DTVRCA L/R 1EA Shared
PAL
NT
RCA L/R 1EA
CVBSRCA L/R 2EA
S-VIDEO
RCA L/R 3EA
Shared
Scart
cart Jack L/R
S
Supported PIP Table(NTSC)
Sub
Main PC DTV TV
PC X
X
X O
DTV X X O
TV O O O O
O
O
OO
O
O
O
O
OOO
OO
OO
O
OO
O
O
O
OOO
OO
X O O O
Video AV2
Video AV1
Video AV2
VideoAV1 VideoAV3
Video AV3
S-V S AV3
X O O
X O
O O X
AV3S-V S

--4--
Hyundai ImageQuest LCD TV HQL260WR/320WR
Audio input signal for PC, DT V, and CVBS modes is entered into the
audio processor IC(MSP3410 or MSP3420), and audio input signal for
VIDEO/S-VIDEO, and SCART CVBS modes entered into the audio
processor.
scart
As in other chips, the audio processor (MSP3410/20) uses the SCL and SDA
line to control volume, and left/right balance and mono/stereo and SRS on/off,
and Sound effect.
The L/R audio signal sent by MSP3410/20 is amplified in the amplifier, TDA1517(U3)
and sent to the speaker.
TDA1517 support 5W(based on impedance 4) of output for each L/R.

--5--
Circuit Service Methods
1.Color Adjustment
I Refer to adjustment specifications
for information on making adjustments
When Color adjustment has to
be adjusted during service
If the module is replaced or
changed Flash ROM(U33),
It must be readjusted using PC,
Include Color pattern
Color Adjust methode(power off state) (Color adjustment Pattern)
1) REMOCON:MUTE + 2 + 5 + 8 + POWER + OK
2) OSD B/D :VOLUME(DOWN)+ POWER(OSD B/D) + POWER(REMOCON) + OK
2.ENTERED INTO AGING MODE at TV Source
1) REMOCON:MUTE + 1 + 4 + 7 + POWER ;REMOVE-POWER OFF(OSD B/D)
2) OSD B/D :MENU + CHPOWER(REMOCON) ;RESET-POWER OFF(OSD B/D)
3.CHECKING MCU VERSION
1) REMOCON:ADVANCED + DISPLAY-NTSC MODEL
2) REMOCON:ADVANCED + INFORMATION-PAL MODEL
4.SET INITIAL METHODE
1) REMOCON:MUTE + 3 + 2 + 1 + POWER
2) OSD B/D :MENU + CHPOWER(REMOCON)

--6--
Hyundai ImageQuest LCD TV HQL260WR/320WR
NO POWER
Trouble Shooting Guide
1. No Power
(POWER INDICATOR OFF)
TROUBLE IN
POWER B/D
CHECK L45
YES
U23
14V-GND
SHORT(?)
CHECK
U23 PIN8
VOLTAGE
(14V)?NO NO
NO
YES
CH
CHECK
U28 PIN8
VOLTAGE
(15V)?
CHECK
U26 PIN3
VOLTAGE
(9V)?
CHECK
U15 PIN6
VOLTAGE
(5V)?
ECK
U23 PIN13
VOLTAGE
(5V)? NO
CHECK
U23 PIN13
VOLTAGE
(0V)?
TROUBLE IN U23
YES
CHECK
U20 PIN2
VOLTAGE
(3.3V)?
YES
CHECK
U16 PIN2
VOLTAGE
(2.5V)?
CHECK
U3 PIN2
VOLTAGE
(3.3V)? NO TROUBLE IN
U13,U16
TROUBLE
IN U26
TROUBLE
IN U28, U15
YES YES
CHECK
U24 PIN2
VOLTAGE
(3.3V)?
CHECK
U19 PIN2
VOLTAGE
(3.3V)?
TROUBLE IN U19
U24
YES
NO
NO
TROUBLE
IN U20
NO
CHECK
U27 PIN2
VOLTAGE
(3.3V)?
TROUBLE
IN U27
TROUBLE
IN U9
NO
NO
CHECK
U31 PIN2
VOLTAGE
(2.5V)?
CHECK
U9 PIN8,6
VOLTAGE
(15V)?
TROUBLE
IN U81
NO
CHECK END
CHECK END
YES

--7--
TROUBLE IN
U9
YES
CHECK
INVI-1, INVI-2
PANEL Vcc? NO NO
CHE
NO RASTER
BASIC CHECK
CK
U9 PIN5
Vcc(14V)?
Vcc(14V)?
CHECK
U9 PIN7 TROUBLE IN
U9
NO
CHANGE LCD PANEL & SIGNAL CABLE
YES
CHECK
U25 PIN46
Vcc(0V)?
NO
YES CHECK
R160, R161,
NO CHECK
CHECK
U25 PIN45
Vcc(0V)?
NO
YES CHECK
R166,R172,OR3,
Q16
NO CHECK
U33
U33
Q15
CHECK
DATA OUT
YES
NO CHECK
U11 RGB
DATA OUT NO TROUBLE IN
U11
YES TROUBLE IN
U1
CHECK
U25 PIN35/36
CHECK
BRIGHTNESS
Vcc(HIGH)?
Vcc(HIGH)?
LVDS B/D, PIN3
LVDS B/D, U1 LVDS
CHANGE INVERTER
I2C DATA
CHECK
LVDS B/D, PIN1
TROUBLE IN
U25
NO
YES
YES
YES
CHECK END

--8--
Hyundai ImageQuest LCD TV HQL260WR/320WR
NO OSD
YES
TROUBLE IN
U34
CHECK
U34 PIN4
Vcc(5V)? NO
YES
CHECK
U34 PIN5/10
H/V SYNC?
YES
TROUBLE IN
U34
NO
CHECK
U34 PIN13/14/
15
RGB?
YES
TROUBLE IN
U34
NO
TRO
BASIC CHECK
UBLE IN
IR seu506 BOARD
CHECK
U25 PIN34
IR PULSE? NO
YES
NO OSD CHECK END

--9--
BASIC CHE
NO POWER CHECK
CK
BASIC CHECK END
YES
CHECK
U18 PIN3
/RESET?
YES
TROUBLE IN
U18
NO
CHECK
U25 PIN41
/RESET(3.3V)?
YES
TROUBLE IN
U25
NO
CHECK
CRYSTAL
OSC.?
YES
TROUBLE IN
Y1,Y2,Y3,X1,X2
for MAIN BOARD
NO TROUBLE IN
X1 f Tuneror
BOARD
YES