COLOR TV
SERVICE MANUAL
CHASSIS : CW62A
MODEL : 29FX6ALX
MODEL : 29FX6ALX-ZG
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
DESCRIPTION OF CONTROLS
All the functions can be controlled with the remote control handset.
Some functions can also be adjusted with the buttons on the front
panel of the set.
POWER
MUTE
1
2
10
11
1
4
2
5
8
0
3
6
9
Remote control handset
Before you use the remote control handset, please install the bat-
teries. See the next page.
7
1. POWER
switches the set on from standby or off to standby.
MENU
TV/AV
TV
3
4
2. NUMBER BUTTONS
switches the set on from standby or directly select a number.
PR+
PR-
PR
OK
PR
3. MENU
selects a menu.
VOL
VOL
4.
(Programme Up/Down)
D E
/
selects a programme or a menu item.
switches the set on from standby.
scans programmes automatically.
F / G (Volume Up/Down)
adjusts the volume.
SW
AP
INPUT
13
5
14
12
TIME/
REVEAL/
?
TEXT/MIX/
SLEEPMODE/
PIP
M
POSITION/
9/4PIP
X
STILL/
SIZE/
I/II/
adjusts menu settings.
6
7
OK
i
accepts your selection or displays the current mode.
FAVOURITE
EYE/
5. TELETEXT BUTTONS (option)
These buttons are used for teletext.
For further details, see the ‘Teletext’ section.
8
9
6. SLEEP
sets the sleep timer.
(With TELETEXT / PIP)
7. PIP BUTTONS (option)
PIP
switches the sub picture on or off.
PR +/-
selects a programme for the sub picture.
SWAP
alternates between main and sub picture.
PR
INPUT
Q.VIEW
LIST
selects the input mode for the sub picture.
SIZE
TIME/
REVEAL/
?
TEXT/MIX/
SLEEPMODE/
SIZE/
adjusts the sub picture size.
STILL
5
M
UPDATE/
INDEX/
X
HOLD/
I/II/
freezes motion of the sub picture.
POSITION
relocates the sub picture in clockwise direction.
9/4 PIP
switches on or off the 9 or 4 sub pictures.
i
FAVOURITE
EYE/
(With TELETEXT / Without PIP)
- 4 -
8. FAVOURITE
selects a favorite programme.
9. EYE/ (option)
POWER
MUTE
*
switches the eye function on or off.
1
2
10
11
1
4
2
5
8
0
3
10. MUTE
switches the sound on or off.
6
9
11. TV/AV
7
selects TV or AV mode.
switches the set on from standby.
exits the Teletext mode
MENU
TV/AV
3
4
12. I/II/
*
selects the language during dual language broadcast.
PR
OK
PR
selects the sound output (option).
VOL
VOL
13. Q.VIEW (or YELLOW)
returns to the previously viewed programme.
Q.VIEW
LIST
14. LIST (or BLUE)
13
9
14
12
displays the programme table.
EYE/
I/II/
SLEEP
6
FAVOURITE
: No function
*
8
COLOURED BUTTONS : These buttons are used for teletext (only
TELETEXT models) or programme edit.
(Without TELETEXT / PIP)
PR-
PR+
PR
OK
PR
VOL
VOL
SWAP
INPUT
SIZE
STILL
9/4PIP
I/II/
SLEEP
PIP
POSITION
EYE/
7
FAVOURITE
(With PIP / Without TELETEXT)
- 5 -
Front panel
Side panel
AV IN3
5
7
2
6
1
3
4
1. MAIN POWER (ON/OFF)
switches the set on or off.
2. POWER/STANDBY INDICATOR
illuminates brightly when the set is in standby mode.
dims when the set is switched on.
3. MENU
selects a menu.
4. OK
accepts your selection or displays the current mode.
F / G (Volume Down/Up)
adjusts the volume.
adjusts menu settings.
(Programme Up/Down)
D E
/
selects a programme or a menu item.
switches the set on from standby.
5. REMOTE CONTROL SENSOR
Note : Only use the supplied remote control handset. (When you use others, they’ll be not able to
function.)
6. AUDIO/VIDEO IN SOCKETS (AV IN3)
Connect the audio/video out sockets of external equipment to these sockets.
7. EYE (option)
adjusts picture according to the surrounding conditions.
- 6 -
SPECIFICATIONS
Note : Specification and others are subject to change without notice for improvement.
V Scope
V Test Condition
This specification can be applied to all the television related to
1) Temperature : 20 5°C(CST : 40 5°C)
2) Relative Humidity : 65 10%
CW62A Chassis.
3) Power voltage : AC110-240V~, 50/60Hz
4) Follow each drawing or spec for spec and performance of
parts,based upon P/N of B.O.M
5) Warm up TV set for more than 20min. before the
measurement.
V Test and Inspection Method
1) performance : Follow the Standard of LG TV test
2) Standards of Etc. requirement
- Safety: IEC60065
- EMC: EN55020,EN55013
V General Specification
Item
No
1
Specification
PAL,SECAM BG
Remark
Receiving System
EU/ Non EU
PAL/SECAM DK
PAL-I/I
NTSC M
NTSC 4.43(AV)
SECAM-L/L’
OPTION
NTSC M/ PAL M/N
VHF : E2 ~ E12
UHF : E21 ~ E69
CATV : S1 ~ S20
HYPER : S21 ~ S41
VHF : 02 ~ 13
Available Channel
2
Non EU/ EU
NTSC-M
UHF : 14 ~ 69
CATV : 02 ~ 13
AC 110-240V, 50/60Hz
AC 230V, 50/60Hz
Input Voltage
3
Non EU
EU
Market
4
5
6
7
EU,CIS, China, Asia, Africa
Flat 29”
Screen Size
Tuning System
Operating Environment
FVS 100Program
200 PR(W/O TXT)
1) Temp : 0 ~ 45 deg
2) Humidity : below 85%
1) Temp : -20 ~ 60 deg
2) Humidity : below 85%
Storage Environment
8
- 7 -
ADJUSTMENT INSTRUCTIONS
1. Application Object
These instructions are applied to all of the color TV, CW62A.
As preparatory operations before
assembling CPT, wind cotton Tape for
protecting to CPT NECK and DY, CPT
connection parts. At this moment, end
of tape should be over-lapped and
wound in direct route to the NECK.
CPT Assembling
2. Notes
(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order.But the
adjustment can be changed by consideration of mass
production.
Fix the Magnet to the position as
shown picture below. Be careful not to
make CPT neck shadow while
adjusting DY.
Assembling DY to
CPT
(3) The adjustment must be performed in the circumstance of
25 5°C of temperature and 65 10% of relative humidity if
there is no specific designation.
HEAT RUN
Convergence Magnet
4
2
6Pole
Degaussing
(4) The input AC voltage of the receiver must keep rating
voltage in adjusting.
STC Pre-Adjustment
(5) The receiver must be operated for about 15 minutes prior
to the adjustment.
(6) Signal: Received, the standard color signal.(65dB 1dB uV)
LG standard signal means the digital pattern
(PAL_EU 05CH).
◀
◀
15 ~ 20mm
PURITY Adjustment
DY Fixing
Let the screen Standard condition.
Operate Heat-Run at least 15
minutes.
SCREEN Voltage adj.
Torque is to be 9-11 kg f.cm when
fixing DY.
3. Focus adjustment
W/B Fixing
(1) Receive the Cross-Hatch Pattern(Fig 1).
(2) Set the picture condition on “DYNAMIC(CLEAR)” mode.
(3) Adjust the Focus volume of FBT for the best focus of (A) &
(B).
FOCUS not yet ADJ.
STC not yet ADJ.
DYC not yet ADJ.
B
A
4.1. Color purity adjustment
(1) It makes CPT or CABINET enough to demagnetization.
(2) Receive the signal of red raster.
(3) Loosen fixed screw of DY and closely to CPT funnel part.
(4) Check the center of screen that PURITY MAGNET of CPT
by crossing adjustment. At this time, 4 & 6 pole magnet is
located to magnet of nothing.
(5) Move the DY to make equal red on whole screen and it
does not to make the DY by fixed screw after check a
simple color of Red/Green/Blue and white raster whether or
not it is a pollution of color.
(At this time, take care raster of screen and DY must fixing
in the condition which maintains a horizontality.)
(6) Check the TV set by move direction.
<Fig 1. Cross-Hatch Pattern(E-7CH)>
4. Purity & Convergence adjustment
4.2. Convergence adjustment
Adjustment should be operated when using the CPT(without
ITC from CPT manufacturing place)
This adjustment must be done in the order of the following
flowchart.
These adjustments can the best condition of focus after
finished purity adjustment.
(1) Receive the signal of cross hatch that BACK RASTER is
black.
(2) Adjust brightness and luminosity till dot appear 9 ~12.
(3) Open angle of the two tab of 4 pole MAGNET by isogonic
angle and accord with vertical line of red and blue color in
the middle of screen.
(4) Maintain as angle of (3) and rotate the tab to accord with
vertical line of Red and Blue color in the middle of screen.
- 8 -
2. White balance IIC Parameter(Address)
(5) Open angle of the two tab of 6 pole magnet by isogonic
angle and accord with vertical line of Red/Blue and Green.
(6) Maintain as angle of (5) and rotate the tab to accord with
horizontal line. In case of twisted horizontal line,repeat
adjustment of (3) ~ (5) remembering the movement of
Red/Green/Blue color.
Program Win31_wb TWB
Vcd Slave 8A
Win31_wb
Speed Delay
30
TWB
A0
Eeprom_Slave
B(R)_Cut
1
B(R)_Amp
G_Amp
G_Cut
(7) Move the DY to best condition of convergence and attach
the CPT to a rubber-chock for fixing DY.
Program Win31_wb TWB Win31_wb TWB Win31_wb TWB Win31_wb TWB
Sub Add
Start Bit
Stop Bit
Offset
20
5
17
5
21
5
18
5
5. Screen voltage adjustment
0
0
0
0
0
0
2
2
(1) Receive the PAL or SECAM(NTSC) signal into RF mode
(regardless of channel).
Polarity
1
1
0
0
(2) If you press the “ADJ”button in LINE SVC mode(IN-START
button),the LINE SVC mode changes to screen adjustment
mode.
(3) Turn the Screen Volume of FBT to change luminance of
White signal center as shown below.
EP_Rom_S
36
33
37
34
Speed/ Plus
2
2
2
2
(4) Press the ADJ button to exit SVC mode.
7. Deflection setting Data Adjustment
6. White balance adjustment
7.1 Adjustment preparation
(1) Tune the TV set to receive an Digital pattern(EU05CH).
NOTE : When adjusting white balance automatically,connect the
adjustment JIG in SVC mode.(When pressing IN-
START,MUTE button on remote control for adjustment
orderly,it is changed to CPU OFF mode and screen is
displayed to “CPU OFF”.)
(2) Deflection setting data adjustment is operate by SVC
communicator.
(3) Enter the deflection mode by selection SERVICE2 key on
SERVICE MENU after enter the adjustment mode by
pressing LINE SVC MODE(IN-START KEY).
(1) Receive 100% white pattern.
(2) Adjust LOW Light status(4.5FL) of CR(R CUT), CB(B CUT)
at CG(G CUT:75) : 60.
(4) Use the CH D,E key to select adjustment item.
(5) Use the VOL F,Gkey to increase/decrease data.
(3) Adjust HIGH Light status(35FL) of WR(R DRIVE), WB(B
DRIVE) at WG(G DRIVE:380) : 450.
(4) Repeat above step (2) and (3) for the best condition each
status of High Light and Low Light.
7.2 Adjustment
<Note>
- When adjusting a deflection,adjust N50Hz of PAL signal first and
adjust a deflection data at N60Hz(NTSC), Z60Hz, N50Hz,
W50Hz, Z50Hz.
- After finishing deflection adjustment, press the ENTER
button to enter or exit SVC mode.
<Table 1> White Balance Color analyzer
EU
N-EU
Menu
X
288
295
268
273
(1) H SHIFT
Y
Adjust so that the geometric horizontal center line is in
accord with horizontal center line of CPT.
(2) H PARALLEL
o
o
Color Temperature
9000 K
13000 K
Adjust vertical inclination of screen.
(3) H BOW
After finishing Cushion adjustment, adjust curved rate of
top & bottom corner to be equal.
(4) V LINEAR
<Table 2> White Balance Initial Data
Menu
Range
DATA
LOW LIGHT BLO-R(R CUT)
BLO-G(G CUT)
0 ~ 63
0 ~ 63
0 ~ 63
0 ~ 63
0 ~ 63
0 ~ 63
32
32
FIX
32
32
32
Adjust the top & bottom size of inner circle to be equal.
(5) V SCROLL
BLO-B(B CUT)
Adjust so that the geometric vertical center line is in accord
with vertical center line of CPT.
HIGH LIGHT
RG(R DRIVE)
GG(G DRIVE)
BG (B DRIVE)
<Table 3> White Balance Initial Data
1. IC
Name
Maker
Algorithm
VCD IC
0
0
0
0
EP_ROM
- 9 -
(6) EW WIDTH
Adjust until the outmost left and right lattice of received
pattern is accord with 25% of other lattice width.
<Fig. 4> PIP H Position
8. Deflection setting initial data
<Fig. 2>PAL Digital pattern (EU05CH)
<Table 4> Deflection setting initial data (SERVICE 2)
* Fix : Don’t change data
(7) EW PARABOLA
Adjust so that middle portion of the outermost left and right
vertical line look like parallel with vertical lines of the CPT.
29”
Item
Description
Adjust
50Hz 60Hz
(8) EW UPCORNER & (9) EW LOCORNER
After finished cushion adjustment, adjust vertical line of left-
top, right-top, left-bottom, right-bottom of screen to the best
straight line.
H-SHIFT
Horizontal shift
24
32
32
41
30
57
18
49
53
25
17
34
35
46
25
0
34
32
32
44
30
57
15
45
50
25
25
29
30
54
25
0
Adjust
Recommend
Recommend
Recommend
Adjust
H PARALL Horizontal parallelogram
H BOW Bow
V LINEAR Vertical linearity
V SCROLL Vertical scroll
EW WIDTH EW width
CRNU6
CRNU
Adjust
EW PARAB Parabola adj
EW UPCOR Upper corner adj
EW LOCOR Lower corner adj
EW TRAPE Trapezoid adj
Adjust
Adjust
Adjust
EP
Adjust
V SLOPE
Vertical slope
Recommend
Recommend
Recommend
Recommend
Fix
CRNL
V AMPLIT Vertical amplitude
SCORRECT S correction
CRNL6
V SHIFT
V ZOOM
Vertical shift
<Fig. 3> Cross-Hatch Pattern(E-7CH)
Vertical zoom
(10) EW TRAPEZOID
V SYNSLI Vertical slicing level
Fix
Adjust to make the length of top horizontal line same with it
of the bottom horizontal line.
(11) V SLOPE
OVRVOLIN Over voltage input mode
0
0
Fix
VGUARD
Vertical guard mode
0
0
Fix
(12) V AMPLITITUE
Adjust so that the circle of a digital circle pattern should be
located interval of 6~7mm from the effective screen of the
CPT.
- After finishing deflection adjustment at PAL 50Hz, NTSC 60Hz
is applied deflection compensation value. But recheck condition
of adjustment at NTSC system and adjust deflection data if
necessary.
(13) S CORRECTION
Adjust so that all distance between each lattice width of
top/center/bottom are to be the same.
(14) V SHIFT
- Adjust PIP Position adjustment at only PAL 50Hz.
Adjust so that the geometric vertical center line is in accord
with vertical center line of CPT.
(15) V ZOOM (VERTICAL ZOOM)
(16) PIP_H(PIP H Position) adjustment - option
Adjust the H-Position by using VOL +/- key until PIP picture
is in contact with main picture.
- 10 -
<Table 7> OPTION 1, 2, 3, 4
9. Service adjustment data table
ITEM
OPTION1 INCH
SYSTEM
Description
29 S-Slim/ 29 N-Flat
<Table 5> Picture setting service data1 (SERVICE 1)
ITEM
DESCRIPTION
ACG take over
29” S-SLIM
BG/DK/I/M, BG/DK/I/L
25
32
32
32
32
32
5
AGC
RG
200PR
W/O TXT=>200PR, W/TXT=>100PR
TOP=>Germany, Swiss, Austria, Italy
Auto channel memory system
China & Australia Frequency table
Red Gain
TOP
Green Gain
GG
ACMS
Blue Gain
BG
CH-AU
Black level offset Red
Black level offset Green
Cathode Drive Level
Luminance delay time
Peak white limiting
Pre overshoot ratio
BLO-R
BLO-G
CDL
BOOSTER
OPTION2 SOUND
PIP
RF stereo / AV stereo / Mono option
PIP option
13
1
L-DLY
PEAK
SHOOT
VOL CURVE
A2 STEREO
I/II SAVE
High / Low volume curve
Nicam check & FM stereo / Dual
Dual sound setting save
Sound high deviation
SCART option
1
HIDEVIAT (High deviation)
OPTION3 SCART
DVD
<Table 6> Picture setting service data2 (SERVICE 3)
DVD option
ITEM
DESCRIPTION
AM DEMODULATOR GAIN-AMLOW
FM DEMODULATOR GAIN-AGN
ADC LEVEL(-16~5) - ADCLEV
DEC LEVEL(-16~5) - DECLEV
MONO LEVEL(-16~5) - MONOLEV
NICAM LEVEL(-16~5) - NICLEV
AUX1 VOL - AUX1VOLL(R)
AUX2 VOL - AUX2VOLL(R)
AUX3 VOL(SCART1 RF SOUND OUT)
FM WINDOW FILTER (FMWS)
BOOSTER
29” S-SLIM
XWAVE
FM TX option
0
0
AM DEM G
FM DEM G
ADC LEV
EYE
EYE option
4KEY
4 Key option
0
TILT
TILT option
0
DEC LEV
DEGAUSS (Degaussing)
OPTION4 OSD LANG
TXT LANG
Degaussing option
Refer to the next page(table.8)
Refer to the next page(table.8)
0
MONO LEV
NICAMLEV
AUX1 VOL
AUX2 VOL
AUX3 VOL
FMWINDOW
BOOSTVAL
MAXVOL
0
0
REMOCON
HOTEL
0
HOTEL option
0
TURBOSCH (Turbo search) Turbo search
0
TURBOP/S (picture/sound)
Turbo picture/ sound
0
DCXO/A (DCXO auto adjust) DCXO auto adjust
MAX VOLUME
100
63
DCXO
DCXO VAL
- 11 -
<Table 8> OSD & TEXT LANGUAGES
0
SOUTHEAST ASIA
0
1
ENGLISH
0
1
2
3
4
ENGLISH
INDONESIAN
MALAY
VIETNAMESE
THAI
2
3
4
5
6
7
0
1
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
ENGLISH
1
EAST EU CYRILLIC TEXT
EAST EU ALL
0
1
2
3
4
5
6
7
0
1
ENGLISH
GERMAN
RUMANIAN
POLISH
HUNGARIAN
CZECH
RUSSIAN
BULGARIAN
ENGLISH
RUSSIAN
2
ENGLISH RUSSIAN
3
4
5
6
7
0
1
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
ENGLISH
3
WEST EU GREEK TEXT
EU 7EA
0
1
ENGLISH
GERMAN
FRENCH
ITALIAN
2
3
4
SPANISH
DUTCH
5
6
PORTUGUESE
ENGLISH
GERMAN
FRENCH
ITALIAN
2
WEST EU ALL
0
1
2
3
4
SPANISH
DUTCH
5
6
SWEDISH
NORWEGIAN
DANISH
7
8
9
FINNISH
10
11
0
PORTUGUESE
GREEK
3
ENGLISH GREEK
ENGLISH
GREEK
1
4
5
6
7
RESERVED
RESERVED
RESERVED
RESERVED
- 12 -
3
ARAB TEXT
0
1
ENGLISH
ARABIC
0
1
2
3
0
1
2
3
0
1
2
3
4
ENGLISH
FRENCH
ARAB
URDU
2
3
PARSI
ENGLISH
FRENCH
ARAB
ARAB ALL
PARSI
ENGLISH
FRENCH
ARAB
URDU
PARSI
4
5
6
7
RESERVED
RESERVED
RESERVED
RESERVED
4
5
6
7
8
9
PARSI TEXT
The same ARAB TEXT
The same SOUTHEAST ASIA TEXT
The same WEST EU GREEK TEXT
The same EAST EU CYRILLIC TEXT
The same ARAB TEXT
ENGLISH
SOUTHEAST W/O TEXT
WEST EU W/O TEXT
EAST EU W/O TEXT
ARAB W/O TEXT
CHINA, INDIA W/O TEXT
0
1
CHINA
0
1
0
1
ENGLISH
CHINESE
ENGLISH
HINDI
2
HINDI
3
4
5
6
7
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
10. How to inspect condition of a
transmission and reception in FM
TRANSMISSION MODEL
11.OPTION Adjustment
1) This option adjustment decides function in accordance with
model. Press IN-START button at SVC mode, then adjust
the option at OPTION1,2,3,4,5 mode.
2) Mark the option adjustment data like [112,68,164,32,8] in
BOM.
- FM TRANSMITTER’s efficiency inspections is executed to a
finished in a final inspection phase.
-
FM TRANSMITTER is a function which receives voice-
signal by an exclusive remote control and Earphone, transmits
a FM through transmitter of inner part in MICOM BOARD to
TV sound(MONITOR OUTPUT)
* Mark of BOM
LEVEL PART NO.
SPECIFICATION
DESCRIPTION
1. 3141VMN382A MAIN CHASSIS ASSY [112,68,164,32,8]
1) Execute in channel generating voice-signal
2) Select a transmitted frequency in MENU OSD.
MENU => SOUND => TRANSMITTER => frequency
selection (87.7MHz)
In this model, the OPTION1 data is 112, OPTION2 data is 68, the
OPTION3 data is 164,the OPTION 4 data is 32, OPTION 5 data
is 8.
3) A received frequency in an exclusive remote control or
received FM Radio is tuned by 87.7MHz(107.7MHz) which
is same as frequency in OSD.
4) Check out whether a signal generating to MAIN SPEAKER
generates in earphone or receiver or not.
5) There is no alternation and setting of adjusted DATA in the
process of inspecting FM TX.
- 13 -
TROUBLE SHOOTING
1. RF-STEREO MODEL
1) PICTURE OK / NO SOUND
Selected correct system in menu
OK
NO
Check the waveform IF 1 of TU101
Check/ Replace TU101 or Input signal
OK
NO
NO
Check the voltage at pin 3, 9, 16, 43,
Check the waveform at pin 4, 5 of IC501
Check/ Replace IC501
86, 88, 90 of UOCIII
OK
NO
Check the waveform at pin 4, 12 of
IC601
Check the voltage at pin 57, 58 of
UOCIII
OK
NO
Check the waveform at pin 6 of IC601
Check/ Replace Q603
OK
NO
Check the waveform at pin 1, 2, 14, 15
of IC601
Check/ Replace IC601
OK
NO
Check the waveform at pin 3, 13 of
IC601
Check/ Replace R823, D826
2) No Raster / Sound OK(1/2)
Check the Heater voltage of
CPT(6~6.4 Vrms)
Check HV, Screen voltage of CPT
Check R, G, B out of CPT board
Check the Heater pulse of FBT T402
Check IC901,
P402A
Check FBT T402
Check FBT T402
Check 197V line of CPT Board &
if no problem check and Replace
Check RF901, P402,
P402B, FR401
- 14 -
3) No Raster (2/2)
+
Check the B at D829
cathode
Normal
Abnormal
OPEN
NO
Check Fuse of AC line
Is the voltage each
pin voltage of IC501
Check/ Replace Fuse
OK
Check the in/out of
regulator(IC822,
IC823, IC824)
NO
Check pin 73 of
IC501(H_Out)
Check the voltage of
C832
Check/ Replace
IC501
Check/ Replace DB801
NO
Check Q402
collector waveform
Check the voltage
pin4 of IC810
Check/ Replace
Q402
Check/ Replace Fuse and IC810
Check T401 & each
pin voltage
Check/ Replace
IC810, IC802, Q830
Check/ Replace
T401
Check Q401collect
waveform
NO
OK
Check Fuse and Diode of secondary
Load of SMPS trans(T801)
Check/ Replace
Q401
Check & Replace
T402
Check/ Replace IC501
- 15 -
4) No Picture/ No Sound
Is any OSD displayed?
NO
OK
OK
OK
Check IC501 pin 83,
84, 85 (R, G, B out)
Check receiving system in MENU
& execute Auto - Program
Does the auto - Program
operate properly
NO
OK
Store on manual -program MENU
NO
NO
Check the waveform
pin73(H-out)
Check IC501 pin 83,
84, 85 (R, G, B out)
Check SMPS Trans
Secondary Voltage
Go to No sound/
picture OK
OK
Check pin3 Reset
Voltage
OK
NO
Check pin8, 12 SCL,
SDA
Check IC12(EEPROM)
& SCL, SDA, Line
OK
OK
Replace IC501
P13A (R, G, B out of
IC501)
P13A (R, G, B out of
IC501)
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2. AV STEREO/ MONO MODEL
Select correct system in menu
OK
OK
Check the connection of AV
equipment
AV
Does the auto - Program
operate properly
Check TU101 Tuner
OK
OK
NO
Check the voltage of pin3, 9,
16, 43, 86,88,90 of IC501
Check the waveform at
pin57, 58 of IC501
OK
NO
NO
Check the waveform at
pin4, 12, of IC601
Check the signal line of SPK-N,P
Check pin5 (mute) of IC501
OK
Check the waveform at
pin6 of IC601
OK
NO
NO
Check the waveform at
pin1, 2, 14, 15 of IC601
Check the voltage at
pin3, 13, of IC601
Check/ Replace
R823, D826
OK
NO
Check the connection of side
or Front AV Board P201A
Correct the Board
OK
Replace IC601
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