In the interests of user safety (Required by safety regulations in some countries) the set should be restored to its original
condition and only parts indentical to those specified should be used.
World Multi 21 System
100-CH Program Memory
AV Mode (Movie/Music/News)
CATV Hyper Band Ready
Blue/White Stretch Circuit
Picture Noise Reduction
White Temp. Select
Gamma Correction
Multi Language OSD (English / Thai)
Hotel Mode
AFT
Off Timer
Rear AV-IN 1, AV Output (Monitor Out),
and Front AV-IN 2 (Auto Select)
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and
power receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to qualified service personnel.
Cabinet material .................................................................................................. All Plastics
Specifications are subject to change without prior notice.
1 - 1
Page 3
CHAPTER 2. IMPORTANT SERVICE NOTES
[1] IMPORTANT SERVICE NOTE
IMPORTANT SERVICE NOTES
Maintenance and repairing of this receiver should be done by
qualified service personnel only.
SERVICE OF HIGH VOLTAGE SYSTEM AND
PICTURE TUBE
When servicing the high voltage system, remove static charge from it by
connecting a 10K ohm resistor in series with an insulated wire (such as a test
probe) between picture tube dag and 2nd anode lead. (AC line cord should
be disconnected from AC outlet.)
1. Picture tube in this receiver employs integral implosion protection.
2. Replace with the same type number of picture tube for continued safety.
3. Do not lift picture tube by the neck.
4. Handle the picture tube only when wearing shatterproof goggles and after discharging
the high voltage completely.
29F-PE550 / 29F-PD570
X-RAY
This receiver is designed so that any X-Ray radiation is kept to an absolute
minimum. Since certain malfunctions or servicing may produce potentially
hazardous radiation with prolonged exposure at close range, the following
precautions should be observed:
1. When repairing the circuit, please make sure do not increase the high voltage of the set
to more then 34.0kV (at beam 0 A).
2. To keep the set in a normal operation, please make sure it's function at 30.0kV 1.5kV
(at beam 1700 A). The set has been factory - adjusted to the above-mentioned high voltage.
*If there is a possibility that the high voltage fluctuates as a result of the repaires,
never forget to check for such high voltage after the work.
3. Do not substitute a picture tube with unauthorized types and/or brands which may cause
excessive X-ray radiation.
BEFORE RETURNING THE RECEIVER
Before returning the receiver to the user, perform the following safety checks.
1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not
lodged between the chassis and other metal parts in the receiver.
2. Inspect all protective devices such as non-metal control knobs, insulating fishpapers,
cabinet backs, adjustment and compartment covers or shields, isolation resistor- capacity networks, mechanical insulators etc.
2 - 1
Page 4
29F-PE550 / 29F-PD570
ADJUSTMENT PRECAUTIONS
This model's setting are adjusted in two different ways: through the I2C bus control and in the
conventional analog manner. The adjustments via the I2C bus control include preset-only items and
variable data.
1. Setting the service mode by the microprocessor.
(1) Press and hold the local key "VOL DOWN" & "CH UP" when power on the main switch,
TV will enter into the SERVICE MODE. (The initial value of EEPROM are automatically
preset when new EEPROM is used)
(2) Press the CH DOWN / UP key on the remote controller to select the setting items
one by one.
(3) Using the VOLUME UP/ DOWN key on the remote controller, the data can be modified.
(4) When press the local key "VOL DOWN" & "CH UP" at the same time,
it will be released from the service mode.
2. Factory Presetting.
(1) Press remote controller key of code "ED" for 4 seconds, the initial values are
automatically preset.
(2) The initial data are preset as listed in page 3-4 and 3-6.
(3) Make sure whether the data need to modify or not (Initial data).
Note:Once the chassis has been assembly together and in ready condition, please make
sure it's go through initialize process (see sect 2 above)
Precaution: If haven't done this initialization, malfunction might be happen.
3-1
Page 5
1) In the Service Mode, key is use to select the mode in the following order.
(1) Execute MCL key to set the following data in EEPROM.
SMTL
R/C CODE
MCL (170 : AAh)
TV-CH.CH-No.Fv (MHz)S-SYSTEM
0
1Thai Local CH-3559.25PAL B / G
2Thai Local CH-5175.25PAL B / G
3
Thai Local CH-7189.25PAL B / G
4Thai Local CH-9203.25PAL B / G
5
Thai Local CH-11217.25PAL B / G
6Thai Local CH-29535.25PAL B / G
7
8
9
10
11SMTL Factory CH-E248.25PAL B / G
12SMTL Factory CH-E462.25PAL B / G
13SMTL Factory CH-E8196.25PAL B / G
14SMTL Factory CH-E10210.25SECAM B / G
15SMTL Factory CH-E12224.25PAL B / G
16SMTL Factory CH-E21471.25PAL B / G
17SMTL Factory CH-E69855.25PAL B / G
18
19
20
21SMTL Factory CH-E12 -0.3MHz.223.95PAL B / G
22SMTL Factory CH-E12 +0.3MHz.224.55PAL B / G
23SMTL Factory CH-E12 -0.4MHz.223.85PAL B / G
24SMTL Factory CH-E12 +0.4MHz.224.65PAL B / G
25SMTL Factory CH-E12 -0.5MHz.223.75PAL B / G
26SMTL Factory CH-E12 +0.5MHz.224.75PAL B / G
27
28
29
30
31SMTL Factory CH-J191.25NTSC M
32SMTL Factory CH-J3103.25NTSC M
33SMTL Factory CH-J4171.25NTSC M
34SMTL Factory CH-J6183.25NTSC M
35SMTL Factory CH-J8193.25NTSC M
36SMTL Factory CH-J10205.25NTSC M
37SMTL Factory CH-J12217.25NTSC M
38SMTL Factory CH-J38621.25NTSC M
39
40
41
29F-PE550 / 29F-PD570
3-23
Page 27
E
SHIPPING SETTING & CHECKING
(1) The following default data has been factory-setting for the EEPROM.
GB7 PACKAGE 5 MODEL SET
Model set: Only one key used for all model, software change if different setting for different model.
29F-PE550 / 29F-PD570
MODEL-SET KEYOSD LANGUAG
3THAILANDB/G NICAM
Default settings:
ItemsDefault Settings
GENERAL
Last powerON
Last TV/AV modeTV mode
Last position-TVProgram 1
Flashback Program-TVProgram 1
Favorite Program AProgram 10
Favorite Program BProgram 20
Favorite Program CProgram 30
Favorite Program DProgram 40
1/2 digit entry2 digit
Volume0
AFTAll programs ON
PICTURE menu
AV MODEMOVIEMUSICNEWS
Contrast606050
Colour+60-6
Brightness000
Tint000
Sharpness+60-6
Picture NROFFOFFOFF
White temp000
EQUALIZER menu
100 (0~24)
300 (0~24)
1K (0~24)
3K (0~24)
8K (0~24)
SOUND menu
Surround
Balance
AVL
Loundness
FEATURE menu
AV MODEMOVIE
Off timer--:-Lock TVOFF
Password0000
Blue backOFF
CH-SETTING menu
COLOUR SYSTEMAUTO
SOUND SYSTEMB/G NICAM
SKIP
All programs OFF
21
16
18
15
21
OFF
0
ON
ON
except CH 0
SOUND SYSTEM
20
17
6
12
20
11
14
17
14
11
Refer to next page for setting of each destination.
3-24
Page 28
(1) Refer to below table (2.1) for setting of each destination.
29F-PE550 / 29F-PD570
MODELLANGUAGE S-SYS
THAI
HONG KONG20,00040,000CHINESEB/G
SINGAPORE
MALAYSIA
MIDDLE EAST
SAUDI
KUWAIT
AUSTRALIA-50,00020,000ENGLISH
RUSSIA45,00020,000RUSSIANB/G
SOUTH AFRICA-25,00012,000ARABICB/G
ROUBEN30,00020,000ARABICB/G
MAGNETIC FIELD (V,H)nTBACKGROUND
10,00040,000THAIB/G
30,00020,00012300KARABIC
Table 2.1
17000K
17000K
12300K
12300K
7500K
12300K
12300K
ENGLISHB/G-10,00040,000
B/G
B/G
3-25
Page 29
29F-PE550 / 29F-PD570
V
PIF ADJUSTMENT CHECKING
NOADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR REMARKS
1RF-AGC(1) Receive "PAL COLOR BAR" signal.
TAKE OVER POINT Signal Strength: 57 ± 1dBµV (75 ohm termination) - VTUVT1Y5ED202 (Wuxi Sharp Tuner)Confirmation Voltage : 3.6 ± 0.4 VDC
ADJUSTMENTMonitor point : TP253
(I2C BUS CONTROL)
(2) Select "RF-AGC" item in the Adjustment(2) Connect the oscilloscope to TP53 .
Item. Push the RF-AGC button, blue display (Tuner's AGC Terminal) as shown in figure 3-1.
with OK sign indicates the adjustment is
working properly. OSCILLOSCOPE
(4) Change the antenna input signal to 63 ~ 67dBµV, and make sure there is no noise.
(5)Turn up the input signal to 90 ~ 95 dBµB to be sure that there is no cross modulation beat.
FOCUS ADJUSTMENT
NOADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR REMARKS
1FOCUS 1. Receive E-5CH (Monoscop pattern).
ADJUSTMENT 2. With the remote controller, make the image normal.
3. Adjust the focus VR to make the character"575" on left bottom of monoscope
as fine as possible.
Auto AdjustmentManual Adjustment
+
0.1V
䌾1.0
BIAS BOX
TV SET
Bias Box : about 4.5V
(3) Select "RF-AGC" item in the Adjustment
Mode. Adjust the "RF-AGC" bus data to
obtain the Tuner output pin drop 0.1V 䌾
below maximum voltage.
-
+
-
Fig. 3-1
TP53
1.0V
CUT OFF, BKGD, SUB-CONT ADJUSTMENT
NOADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR REMARKS
1CRT CUTOFF
ADJUSTMENT1. Make sure following items are in INTIAL DATA before adjust CRT cutoff.
(I2C BUS CONTROL)
2. Switch TV to video mode, blue back off, with no signal and press R/C to set picture
into normal condition.
3. Go to service mode at adjustment mode item A057 VSD and press Volume Up at R/C.
4. Adjust screen voltage until retrace line just become visible.
a) 18 CUT-RS = 10
b) 19 CUT-GS = 10
c) 20 CUT-BS = 10
d) 80 CUT OFF = 14
PAL CHROMA ADJUSTMENT
NOADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR REMARKS
1SUB COLOUR1. Receive the "PAL Color Bar" signal.
(I2C BUS CONTROL)2. Make the image normal with the remote controller. Cy G B
3. Connect the oscilloscope to TP47R (IC851 #9). ( Use Probe 10:1)
Range : 2V / Div Sweep time: 20m sec / Div
4. Set the sub color adjustment mode with the remote controller, and vary the sub
color data to make 100% W of the color bar and RED at the same level for
adjustment shown in Fig. 1-1.75 % W Y 100% W Mg R
Fig. 1-1
NTSC CHROMA ADJUSTMENT
NOADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR REMARKS
1SUB-TINT(1) Receive the "NTSC 3.58 Colour Bar" signal through AV IN
(I2C BUS CONTROL)(2) Connect the oscilloscope to TP47B (P860 Pin4) BLUE-OUT
Range : 100mV/Div (AC)(Use Probe 10:1)
Sweep time : 10 µsec/Div
(3) Select the "SUB-TINT" item in the ADJUSTMENT MODE.. Adjust the "SUB-TINT"
data to obtain the waveform shown as Figure 1.1 (W and Mg same level)
Same Level
WY CyG
Mg R B
(4) Minus 2 steps of adjustment value from item (3).
NOTE :Gnd for oscilloscope must be connected to small signal gnd in CRT
board. If others location gnd is used, please offset the sub tint
value accordingly.
3-26
Page 30
29F-PE550 / 29F-PD570
CUT OFF, BKGD, SUB-CONT ADJUSTMENT CONTINUED
NOADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR REMARKS
2WHITE BALANCE(1) Receive the internal RF monoscope pattern.
BACKGROUND (2) Make the picture normal with the remote controller.
I2C BUS (3) Connect the beam ammeter between terminal of R623.
ADJUSTMENT (4) Coarsely confirm the beam current to approx. 1.7mA.
(AV-IN SIGNAL) (5) Receive the window pattern with AV input.
(6) With the data of DRI-GS and DRI-BS, adjust the color temperature of the 50% white.
(7) Adjust the right dark area of the window to 12300K for 29HXF1000I model with CUT-RS,( With Monolta color thermometer CA-100)
CUT-GS and CUT-BS. Fix the base colour (strongest) data at 32 (dec).
(8) Go back to 50% white area to check colour temperature, if out of range, please
go back to step (6).
Note 1: Apply this adjustment after aging 30 min or more with the beam current
1700 ± 50 µA.(On the white or green monocolor screen)
2: Adjust DRI-GC/GW, DRI-BC/BW , CUT-RW/C and CUT-GW/C as following DATA,
after finishing DRI-BS and DRI-GS DATA adjustment.
3WHITE BALANCE(1) The window pattern is received with DVD signal ( component signal).
BACKGROUND
I2C BUS (2) Apply the adjustment in the same manners as 2 (AV-IN SIGNAL)
ADJUSTMENT and subsequence above.
(DVD SIGNAL) (DRI-GS-DVD, DRI-BS-DVD, CUT-RS-DVD, CUT-GS-DVD, CUT-BS-DVD)
Apply the adjustment after the end of 2 (AV-IN SIGNAL).
Note: 1. All of the DRI-GW/C-DVD & DRI-BW/C-DVD can be obtain by using same
calculation as white balance adjustment above (No.2). CUT-RW/C-DVD
and CUT-GW/C-DVD setting data are as follow.
4SUB-BRIGHTNESS(1) Receive the window pattern with AV input.
ADJUSMENT(2) Make the image normal with the remote controller.Note 1: Use "Y" of Minolta color analyzer
(I2C BUS CONTROL)(3) Select the sub- bright adjustment mode with the remote controller, and adjust the CA-100 in adjustment
(AV-IN SIGNAL) right dark white area of the window pattern to 3.0cd ± 0.5cd
generator SX-1006 for adjustment.
5SUB-BRIGHTNESS(1) Select DVD mode.
ADJUSMENT(2) Receive the signal of the DVD signal generator . ( Component signal)
(I2C BUS CONTROL) ( Window Pattern)
(DVD SIGNAL)(3) Make the image normal with the remote controller.
(4) Select the SUB-BRIGHT adjustment mode (DVD) , and adjust the right dark white
area of the window pattern to 3.0cd ± 0.5cd
50% white
Note 2: Use the window pattern of the signal
Dark white
6SUB-CONTRAST(1) Receive the window pattern with AV input.
7SUB-CONTRAST(1) Select the DVD mode.
I2C BUS (2) Make the image normal with the remote controller.
ADJUSTMENT(3) Select the SUB-CONTRAST adjustment mode with the remote controller, and
(AV-IN SIGNAL) adjust 50% white to 130 ± 10cd.
Note : Make sure the TV set already in the RF receiving atate before changing to AV mode
to contimue with this adjustment (no power OFF from the previous adjustment).
I2C BUS (2) Receive the signal of the DVD signal generator. ( Component signal)
ADJUSTMENT (Window Pattern)
(DVD SIGNAL)(3) Select the SUB-CONTRAST adjustment mode (DVD) with the remote controller,
and adjust 50% white to 130 ± 10cd.
Note : Make sure the TV set already in the RF receiving atate before changing to AV mode
to contimue with this adjustment (no power OFF from the previous adjustment).
3-27
50% white
dark white
Page 31
29F-PE550 / 29F-PD570
HORIZONTAL ,VERTICAL,DEFLECTION LOOP AND ADJUSTMENT
NOADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR REMARKS
1MAIN SCREEN
ADJUSTMENT
A
V-SLOPEAdjust V-Slope by Volume Up / Down Remote Control. (monoscope)
V-SHI-50Align the center of the screen to the geometric center of CRT.(monoscope)
V-AMP-50Adjust the overscan to 8% (monoscope)
V-LINAdjust the linearity to the best.(monoscope)
S CORAlready preset.(Adjust this unless the linearity is achieved.)(monoscope)
H-SHI-50Align the center of the screen to the geometric center of CRT.(monoscope)
EW-W-50Adjust the overscan to 10% (monoscope)
E/W-PAR-50Adjust the 2nd vertical line from the right end of the crosshatch pattern
UPCOR-PARAdjust the 2nd upper vertical line from the right end of the crosshatch pattern
LOCOR-PARAdjust the 2nd lower vertical line from the right end of the crosshatch pattern
H-BOWAdjust the 2nd vertical line from the end of the crosshatch pattern
H-PARAdjust the 2nd vertical line from the end of the crosshatch pattern(crosshatch)
EW-TRAPAdjust the 2nd vertical line from the right end of the crosshatch pattern
V-SHI-60Adjust the data as follow : V-SHI-60 = V-SHI-50 data - 1.(monoscope)
V-AMP-60Adjust the data as follow : V-AMP-60 = V-AMP-50 data + 2.(monoscope)
H-SHI-60Adjust the data as follow : H-SHI-60 = H-SHI-50 data + 7.(monoscope)
EW-W-60Adjust the data as follow : EW-W-60 = EW-W-50 data - 1.(monoscope)
E/W-PAR-60Adjust the data as follow : E/W-PAR-60 = E/W-PAR-50 data + 1.
Refer to Fig. 1.1.
so that the middle 4 blocks are straight. Refer to Fig 1-2. (crosshatch)
so that the upper line are straight. Refer to Fig 1-3. (crosshatch)
so that the bottom line are straight. Refer to Fig 1-4. (crosshatch)
Refer to Fig 1.7.(crosshatch)
Refer to Fig 1.6.
so that the D1 (center area of the second vertical line - edge of screen)
and D2 (top area of the second vertical line - edge of screen) are same.
Refer to Fig 1-5.(crosshatch)
(crosshatch)
B
C
Fig 1-1
A = Out of spec
B = OK
C = Out of spec
Fig 1-2
Fig 1-3
Fig 1-4
D2
D1
Fig 1-5
H-PAR
Fig 1.6
H-BOW
Fig 1.7
3-28
Page 32
29F-PE550 / 29F-PD570
FUNCTION OPERATION CHECKING (1) (VIDEO & AUDIO)
NOADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR REMARKS
8COLOUR SYSTEM(1) Receive the "PAL COLOUR BAR" signal, press the COLOUR SYSTEM
or not.
(2) Press to Menu mode, then select Picture Mode and select TINT.
(3) Press Volume Up/Down key to check TINT, UP for GREEN direction and
DOWN for RED direction whether is OK or not.
(2) Press to Menu mode, then select Picture Mode and set to select SHARPNESS.
(3) Press Volume Up/Down key to check whether the SHARPNESS effect is OK or NOT.
all the settings will be present to normal setting.If nothing is display mean contrast,
(Normal setting value for every mode, refer Table on page 3-13).colour, bright, tint, sharpness are
(2) Set FUNCTION to select WHITE TEMP.
(3) Press Volume Up/Down key to check WHITE TEMP Option, STANDARD:
NORMAL SETTING, WARM for more REDDISH direction changing, COOL for
more BLUISH direction changing.
key to select modes except PAL, check the COLOUR is not working properly.
Then, select the "PAL" mode. Check again its colour so that it is working properly.
(2) Receive "SECAM COLOUR BAR" signal, press COLOUR SYSTEM
key to select modes except SECAM, check the COLOUR is not working properly.
Then, select the "SECAM" mode. Check again its colour so that it is working
properly.
(3) Receive "NTSC 4.43" signal, press COLOUR SYSTEM key to select
modes except NTSC 4.43, check the COLOUR is not working properly.
Then, select the "NTSC 4.43" mode. Check again its colour so that it is working
properly.
(4) Receive "NTSC 4.43/3.58 COLOUR BAR" signal thru AV, press COLOUR
SYSTEM key to select modes except N4.43/3.58, check the COLOUR is not
working properly. Then, select the "NTSC 4.43/3.58" mode. Check again its
colour so that it is working properly.
all in normal setting.
3-29
Page 33
29F-PE550 / 29F-PD570
CHECKING FUNCTION OPERATION (2) (VIDEO & AUDIO) CONTINUED
NOADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR REMARKS
9SOUND SYSTEM(1) Receive "PAL-D/K" signal, press the "SOUND SYSTEM"
10HEADPHONE
OUTPUT CHECKING
to select B/G, I. Check the sound output is not working properly.
Select D/K and check the sound output to make sure it is working properly.
(2) Receive "PAL-I" signal, press the "SOUND SYSTEM"
to select B/G, D/K. Check the sound output is not working properly.
Select I and check the sound output to make sure it is working properly.
(3) Receive "PAL-B/G" signal, press the "SOUND SYSTEM"
to select I, D/K. Check the sound output is not working properly.
Select B/G and check the sound output to make sure it is working properly.
+
(1) Receive PAL COLOUR BAR with sound 400Hz, 100% modulation ( 50kHz Dev)
(2) Maximum volume, and check the headphone output with 400kHz sound
and no sound out from speaker.
Ref : OUTPUT level of HEADPHONE is as following
Apx. 500mVp-p
_
11NOISE MUTE(1) Receive "PAL COLOUR BAR" signal.
PROTECTOR OPERATION CHECK
NOADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR REMARKS
4) of IC 1100. Also
check the waveform
no.5 of IC501 and its
related parts. Check
8V supply at pin 36
of IC1100, 5V supply
at pin 55, 35, 18 &
11 of IC1100.
RED
RED
No
Check 3.3V supply at
pin 2, 4, 5 & 75 of
IC1100. Check
oscilation of crystal
X1001.
GREEN
Check CRT connector
(KY), (H) bias.
(Heater voltage 120V,
210 V line)
Normal
Check R,G,B
input and output
of IC 851.
Abnormal
Check the heater
voltage 120V and
210V
line from the
main PWB side.
4 - 1
Page 35
NO LED LIGHT
Check F701
29F-PE550 / 29F-PD570
Normal
Does STBY+5V appear at pin 4
IC752 main unit ?
No
Check the power
circuit consisting of
IC701, IC702, T701
and its related parts.
Check 3V output
from pin 1 of IC
704 and its related
parts.
Blown out
Replace the fuse
No
Is the fuse again blown out ?
Yes
Check the power circuit
consisting of IC701,
IC702, D704 and its
related parts.
Yes
4 - 2
Page 36
NO NORMAL SOUND
29F-PE550 / 29F-PD570
No sound
comes out at
AV-out J905.
Check sound output
signal from pin 23 &
24 of IC1100 and its
related circuit.
No sound from the
speaker.
Set volume to maximum. Is there
any sound output signal at pin 8 &
12 of IC301?
NO
Check if there is
sound input signal
Check connection
to the speaker.
atpin2&4of
IC301.
NO
Check output
signal at pin 25,
26 of IC1100 and
its related circuit.
YES
4 - 3
Page 37
NO PICTURE
29F-PE550 / 29F-PD570
Snow noise
increase
Does 5V appear
at pin 7 of TU 251?
YES
Does 31V appear
at pin 9 of TU 251?
YES
Check TU 251
YES
NO
ON
Does the snow noise
appear on the screen at
maximum contrast and
brightness ?
Check the PC+5V line.
Check +120V line and
its related circuit.
NO
A
4 - 4
Page 38
A
No snow noise
Check pin 45 &
46 of IC 1100.
29F-PE550 / 29F-PD570
Abnormal
(No signal or noise)
Noise or signal
appear.
Does AV input at
AV1 & AV2 normal ?
NO
Check pin 29 & 31 of
IC 1100. Does signal
or noise appear ?
NO
Check circuit
between AV-in
terminal and pin 29 &
31 of IC 1100.
YES
YES
Check TU 251 (Tuner),
SF 202 and its
related circuit.
Check IC 1100 and
its related circuits.
Check IC 1100 RGB
out at pin 6, 7 & 8.
Is the output normal ?
NO
Check IC 1100 and
its related circuit.
YES
Does signal output
at pin 7, 8 & 9 of
IC 851 normal ?
NO
Check IC 851 at
input pin 1, 2 & 3
and its related
circuit.
YES
Check the related
circuit of screen
heater (FBT) and
the CRT.
4 - 5
Page 39
NO SPECIFIC COLOUR
29F-PE550 / 29F-PD570
Is only RF signal's colour
abnormal ?
YES
Check tuner TU 251,
SF 202 and its related
circuit.
NO
NO COLOUR
Adjust the colour
control at the user
MENU. Does colour
appear ?
NO
Go to CHANNEL
SETTING at the user
MENU and change
to the appropriate
colour system. Does
the colour appear ?
NO
Using a PAL colour
bar signal, check the
RGB in & out line
between IC 1100 and
IC 851. Does the
waveforms normal ?
YES
YES
COLOUR PRODUCED
Set the
appropriate
colour level.
Set the
appropriate
colour system.
B
NO
Check IC 851, IC
1100 and its related
circuit.
4 - 6
Page 40
B
Is some colours produced
in the B/W broadcast
reception ?
29F-PE550 / 29F-PD570
NO
Check IC 1100
& IC 851 and its
related circuit
including the
RGB input &
output line.
1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE
REPLACING PART.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS
OPERATING.
IMPORTANTS SAFETY NOTICE:
PARTS MARKED WITH " " ( ) ARE IMPORTANT FOR
MAINTAINING THE SAFETY OF THR SET. BE SURE TO REPLACE
THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.
SERVICE PRCUATION:
THE AREA ENCLOSED BY THIS LINE ( ) IS DIRECTLY
CONNECTED WITH AC MAINS VOLTAGE.
WHEN SERVICING THE AREA CONNECT AN ISOLATING
TRANSFORMER BETWEEN TV RECEIVER AN AC LINE TO
ELIMINATE HAZARD OF ELECTRIC SHOCK.
NOTES:
1. The unit od resistance "ohm" is omitted.
(K = 1000 ohms, M = Meg ohm).
2. All resistor are 1/16 watt, unless otherwise noted.
3. All capacitors are µF, unless otherwise noted. (P = µµF).
VOLTAGE MESUREMENT CONDITIONS:
1. Voltages in parenthesis measured with no Signal.
2. Voltages without parenthesis measured with PAL
Colour-Signal.
3. All the voltages in each point are measured high
impedance volt-meter.
WAVEFORM MEASUREMENT CONDITIONS:
1. RF colour bar signal of 2.0V peak to peak applied at
RF Tuner TU51.
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and performance of the set.
SHARP MANUFACTURING (THAILAND) CO.,LTD.
Page 50
[1] PICTURE TUBE
!
!
VB68MAU085X3E
RCILGA127
PMA
WJZZ
GG3002CEZZ
QEARC2915PEZZ
Picture Tube (ITC Type)
Degaussing Coil
Ma
gnet
Corting Ground Wire
[2] PRINTED WIRING BOARD ASSEMBLIES
6WEA9
E*
9AR/-1*
AR/-1*
AR/-1*
1E
1+
AR/-1*
9AR/-1*
1+
Main Unit (29F-PE550)
Main Unit (29F-PD570)
CRT Unit (29F-PE550)
CRT Unit (29F-PD570)
Resistor, 100 1/16W Metal Oxide
Resistor, 100 1/16W Metal Oxid
Resistor, 100k 1/16W Metal Oxid
Resistor, 100k 1/16W Metal Oxid
Resistor, 0 1/16W Metal Oxid
Resistor, 0 1/16W Metal Oxid
e
e
Resistor, 560 1/16W Metal Oxid
Resistor, 560 1/16W Metal Oxid
Resistor, 0.1 2W Metal Fil
m
Resistor, 100 1/16W Metal Oxid
Resistor, 100 1/16W Metal Oxid
Resistor, 100 1/16W Metal Oxid
Resistor, 150 1/16W Metal Oxid
Resistor, 150 1/16W Metal Oxid
Resistor, 150 1/16W Metal Oxid
Resistor, 100 1/16W Metal Oxid
Resistor, 100 1/16W Metal Oxid
Resistor, 100 1/16W Metal Oxid
Resistor, 220 1W Metal Fil
Resistor, 5.6 2W Metal Fil
Resistor, 270 2W Metal Fil
Resistor, 560 2W Metal Fil
Resistor, 1.8k 1/8W Carbo
Resistor, 1 2W Metal Fil
Resistor, 1.8k 1/8W Carbo
Resistor, 10k 1/8W Carbo
Resistor, 2.2k 1/8W Carbo
m
m
m
m
n
m
n
n
n
Resistor, 100 1/16W Metal Oxid
Resistor, 100 1/8W Carbo
Resistor, 100 1/8W Carbo
Resistor, 100 1/8W Carbo
n
n
n
Resistor, 12k 1/16W Metal Oxid
Resistor, 39k 1/16W Metal Oxid
Resistor, 27 1/2W Metal Oxid
Resistor, 4.7 1W Metal Fil
Resistor, 10k 1W Carbo
Resistor, 0.47 1W Metal Fil
Resistor, 10k 1W Carbo
e
m
n
m
n
Resistor, 39k 1/16W Metal Oxid
Resistor, 6.8 2W Metal Oxid
Resistor, 3.3k 1/2W Carbo
Resistor, 100 1/8W Carbo
Resistor, 10k 1/8W Carbo
Resistor, 120k 1/2W Carbo
Resistor, 120k 1/2W Carbo
Resistor, 12k 1/2W Carbo
Resistor, 0.47 1W Metal Fil
Resistor, 18k 2W Metal Oxid
Resistor, 22 1/2W Carbo
e
n
n
n
n
n
n
m
e
n
Resistor, 390k 1/8W Metal Carbo
Resistor, 1k 1/2W Metal Oxid
e
Resistor, 390k 1/8W Metal Carbo
Resistor, 390k 1/8W Metal Carbo
Resistor, 5.6k 1W Metal Fil
Resistor, 1.2 7W Metal Oxid