Page 1
20CT-250
SERVICE MANUAL
S88U521CT-250
COLOUR TELEVISION
Chassis No. G2
MODEL
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 identical to those specified should be used.
20CT-250
FEATURE
Ë
User Preset Timer (On Timer/Sleep Timer/Reminder)
Ë
2 Selectable OSD Languages (English/Thai)
Ë
CATV (Hyper Band) Ready
〈Used Frequency Synthesizer Tuner〉
Ë
NTSC 4.43/3.58MHz (AV only), Rear AV IN/OUT
terminal
Ë
Blue Back Noise Mute
Ë
Fine Tuning Adjustable with Remote Control
Ë
Full Auto Channel Preset And Auto Channel Skip
Ë
100 CH Program Memory
Ë
Aperture Control Circuit
Ë
Black Stretch Circuit
Ë
Bilingual System (Mono)
Ë
Auto Channel Scan System
Ë
Favorite Channel Memory System
CONTENTS
Page
» SPECIFICATIONS...............................................2
» IMPORT ANT SER VICE NOTES ......................... 2
» ADJUSTMENT PRECAUTIONS ........................ 3
» SERVICE ADJUSTMENT................................... 6
» TROUBLE SHOOTING T ABLE......................... 15
» SOLID ST ATE DEVICE BASE DIAGRAM ........ 18
» CHASSIS LAYOUT............................................17
» SCHEMA TIC DIAGRAM ................................... 19
» BLOCK DIAGRAM ............................................23
» PRINTED WIRING BOARD ASSEMBLIES...... 25
» REPLACEMENT P AR TS LIST.......................... 27
Page
WARNING
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.
SHARP CORPORATION
Page 2
20CT-250
SPECIFICATIONS
Convergence.................................................................... Self Converging System
Focus .........................................................................Uni Bi-Potential Electrostatic
Sweep Deflection ..................................................................................... Magnetic
Intermediate Frequencies
Picture IF Carrier ................................................................................. 38.9 MHz
Sound IF Carrier Frequency ...................................................... 33.16/33.4 MHz
Colour Sub-Carrier Frequency .............................................................. 34.47 MHz
Power Input........................................................................ 220-240V AC 50/60 Hz
Power Consumption ........................................................................................ 80W
Audio Power Output Rating ........................................................................... 3.0 W
Speaker
Size .....................................................................................................10 cm pcs
Voice Coil Impedance..............................................................8 ohms at 400 Hz
Aerial Input Impedance
VHF/UHF.............................................................................75 ohm Unbalanced
Receiving System .............................................................CCiR SECAM/PAL B, G
NTSC 3.58/4.43 MHz (AV Input Only)
Tuner Ranges
»VHF-Channels ................................. E2 (48.25 MHz) thru E12 (224.25 MHz)
2
»UHF-Channels ............................. E21 (471.25 MHz) thru E69 (855.25 MHz)
Dimensions ................................................................................. Width: 690.0 mm
Weight (approx.): 20.2 kg
Cabinet Material.................................................................................... All Plastics
(at Max.)
Height: 462.5 mm
Depth: 481.0 mm
Maintenance and repair of this receiver should be done by
qualified service personnel only .
SERVICING 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 tube of the same type number 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
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, be sure not to increase the high voltage to more than 24.5
2. To keep the set in a normal operation, be sure to make it function on 22.0 kV ±1.5 kV (at
3. Do not substitute a picture tube with unauthorized types and/or brands which may cause
IMPORT ANT SERVICE NOTES
the high voltage completely
kV (at beam 0 µA) for the set.
beam 800 µA) in the case of the set. 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 repairs, never
forget to check for such high voltage after the work.
excess X-ray radiation.
Specifications are subject to change without prior notice.
2-1 2-2
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-metallic control knobs, insulating fishpapers,
cabinet backs, adjustment and compartment covers or shields, isolation resistorcapacity networks, mechanical insulators etc.
Page 3
ADJUSTMENT PRECAUTIONS
This model’s settings are adjusted in two different ways: through the I2C bus control and in the conventional analog
manner. The adjustment via the I
2
C bus control includes preset-only items and variable data.
1. Calling the service mode by the microprocessor
1 Set the switch S1006 to the service mode position, and the microprocessor is put in the service mode
(adjustment through the I
2 Press the CH UP/DOWN keys on the remote controller to select the modes one by one.
3 Press the CH UP/DOWN keys on the remote controller to select the modes in the order opposite to the
above step 2.
4 Using the VOLUME UP/DOWN keys on the remote controller, the data can be modified.
5 Set the switch S1006 to the normal mode (OFF) position, and the microprocessor is put out of the
service mode.
2
C bus control).
2. Factory presettings
1 Set the switch S1006 to the service mode position and turn on the main power switch. Initial values are
automatically preset only when a new E
2 The initial data are preset as listed on page 5.
3 Keep in mind that some settings should be modified, and the others should remain as preset.
Note: Once the chassis has been put together, be sure to set the switch S1006 to the service mode
position first and then turn on the main power switch (see the step 2.-1 above). Turning on
the power without initializing the E2PROM may cause a flow of excess beam current.
3
3. The accompanying memory map (11-page document for the RH-iX3031CE ) is for your
2
PROM is used (judgment with the first 4 bytes).
reference.
3-1 3-2
20CT-250
Page 4
SERVICE MODE
SUB CONTRAST (SUB CON)
SUB BRIGHT (SUB BRI)
SUB COLOUR (SUB COL)
SUB SUBTINT ( SUB TIN)
SUB SHARPNESS (SUB SHARP)
Y-SUB CONTRAST (Y SUB CON)
SUB-ADJUST mode
V-AMP 60 Hz (V-AMP60)
V-LINE 60 Hz (V-LINE60)
VS-CORRECT 60 Hz
V-PHASE 60 Hz (V-CENTER60)
H-PHASE 60 Hz (H-CENTER60)
V-BLK START 60 Hz (V-BLK ST60)
V-BLK STOP 60 Hz (V-BLK SP60)
60Hz ADJUST mode
Y DELAY PAL (DT PAL TV/AV)
Y DELAY SECAM (ST SECAM TV/AV)
Y DELAY NTSC (DT NTSC TV/AV)
Y DELAY B/W (DT BW TV/AV)
VIDEO MUTE ON/OFF (V-MUTE)
VIDEO 2 ON/OFF (AV2)
(DELAY A/V effective in A/V mode)
Y-DY/OPTION mode
In the direction of arrow : CH DOWN key
In the opposite direction : CH UP key
* The characters in parentheses
appear on the on-screen display.
(1) Press the specific keys to change the modes as follows.
20CT-250
RASTER mode
Y-DY/OP ADJUST mode 60 Hz ADJUST mode SUB-ADJUST mode
R-CUT OFF
G-CUT OFF
B-CUT OFF
4
50 Hz ADJUST mode COLOUR ADJUST mode
V-AMP 50 Hz (V-AMP50)
V-LINE 50 Hz (V-LINE50)
S-CORRECT 50 Hz (V S-CORR50)
V-PHASE 50 Hz (V-CENTER50)
H-PHASE 50 Hz (H-CENTER50)
V-BLK START (V-BLK ST50)
V-BLK STOP (V-BLK SP50)
In the direction of arrow : CH DOWN key
In the opposite direction : CH UP key
* The characters in parentheses appear on the on-screen display.
CUT-OFF mode
KEY
R-CUT OFF
G-CUT OFF
B-CUT OFF
R-DRIVE
B-DRIVE
LATERAL mode
50 Hz ADJUST mode COLOUR ADJUST mode
CUT-OFF/BKGD mode
CUT-OFF/
BKGD mode
LATERAL mode
UP
1 KEY
2 KEY
3 KEY
7 KEY
8 KEY
4-1 4-2
In the direction of arrow : CH DOWN key
In the opposite direction : CH UP key
R-DRIVE
3-sec time out3-sec time out
3-sec time out3-sec time out
DOWN
4 KEY
5 KEY
6 KEY
F/B KEY
0 KEY
9 KEY
SECAM R-Y (R-Y)
SECAM B-Y (B-Y)
In the direction of arrow : CH DOWN key
In the opposite direction : CH UP key
B-DRIVE
* When the modes are switched, the last service mode data are stored into the E2PROM.
* In the service mode, the user data are preset as follows.
User data
CONTRAST MAX (64/64)
COLOUR CENT (32/64)
BRIGHTNESS CENT (32/64)
TINT CENT (32/64)
SHARPNESS CENT (32/64)
S-VOLUME MIN (1/64)
BLUE BACK OFF
* The following keys are used to go directly to their respective modes.
Mode Key input
H-CENTER 50 PICTURE
V-CENTER 50 TEXT
V-AMP 50 INDEX
V S CORR 50 RED
V-LINE 50 GREEN
SUB CONT CANCEL
Y SUB CONT REVEAL
SUB COLOUR TIMED PAGE
SUB BRIGHT SIZE
SUB TINT HOLD
SUB SHARP RESET
R-Y YELLOW
B-Y CYAN
A/V 1/2 SKIP
VIDEO MUTE BLUE BACK
Page 5
*To go to the service mode, the data at the E
given below, the E2PROM is initialized according to the table below.
Address: Data
00H : 23H 02H : 13H
01H : 20H 03H : 61H
(00H) –––––––––– 23H
(01H) –––––––––– 20H
(02H) –––––––––– 13H
(03H) –––––––––– 61H
R CUT OFF 0
G CUT OFF 0
B CUT OFF 0
G DRIVE 0
B DRIVE 0
50Hz V-AMP 0
50Hz V-LINEARITY 0
50Hz S-CORRECTION 0
50Hz V-PHASE 0
50Hz H-PHASE 0
V-BLK ST 50 0
V-BLK SP 50 0
60Hz V-AMP 0
60Hz V-LINEARITY 0
60Hz S-CORRECTION 0
5
60Hz V-PHASE 0
60Hz H-PHASE 0
60Hz V BLK ST 0
60Hz V BLK SP 0
SECAM R-Y 0
SECAM B-Y 0
SUB-CONTRAST 0
SUB-BRIGHT 0
SUB-COLOUR 0
SUB-TINT 0
SUB-SHARPNESS 0
Y SUB-CONTRAST 0
DT P AL TV/AV 0
DT SECAM TV/AV 0
DT NTSC TV/A V 0
DT B/W TV/AV 0
V-MUTE ON/OFF OFF
A/V 2 1/2 1
NVM With all the adjustments complete, do not change the data of addresses 00H thru 03H. Other-
*1 : These data are additionally adjusted for 60Hz based on the 50Hz settings.
*2 : Unless otherwise specified, these data are fixed and need no adjustment.
*4 : Only 0 through 5 must be used in changing the data.
E2PROM item Data adjustable range Data initial value Remarks
wise the E
2
PROM will be initialized when the AC power is turned on.
2
PROM’s addresses 00H thru 03H are read. If the data are not as
255 0
~
255 0
~
255 0
~
255 127
~
255 127
~
127 58
~
31 16
~
127 67 *1
~
~
31 7 +5 *1
~
63 58→63 (50Hz)
~
127 25
~
127 59
~
31 14
~
127 74 *2
~
~
31 12
~
63 60→63 (60Hz)
~
127 20
~
15 10
~
15 6
~
255 255 *2
~
255 127
~
255 110
~
127 70
~
63 28
~
31 18 *2
~
~
~
~
~
75–3*1
72 *4
7 2/2 *2
7 4/4 *2
7 2/2 *2
7 2/2 *2
INITIAL SETTINGS OF CHANNEL SELECTION DATA
(1) Make an entry of MCL1 in the service mode in order to set the following channel selection data to the
E2PROM. And select the POS1 channel. (An MCL2, -3 or -4 input makes different settings.)
POS RECEPTION FREQ (MHZ)
1 48.25 B/G
2 62.25 B/G
3 77.25 D/K
4 175.25 B/G
5 182.25 B/G
6 183.25 D/K
7 191.25 D/K
8 196.25 D/K
9 210.25 B/G
10 224.25 B/G
11 471.25 B/G
12 487.25 I
13 503.25 B/G
14 575.25 B/G
15 599.25 B/G
16 621.25 –
17 639.25 D/K
18 703.25 B/G
19 735.25 I
20 767.25 B/G
S-SYSTEM
POS RECEPTION FREQ (MHZ)
21 815.25 B/G
22 855.25 I
23 855.25 B/G
24 55.25 B/G
25 83.25 B/G
26 183.25 –
27 193.25 –
28 471.25 B/G
29 477.25 –
30 693.25 –
31 885.25 B/G
32 112.25 B/G
33 168.25 B/G
34 FREE –
35 294.25 B/G
36 463.25 B/G
37 FREE –
38 647.25 B/G
39 663.25 B/G
40 679.25 B/G
S-SYSTEM
FACTORY SETTING
(1) The following key-in data have been factory-set for the E2PROM.
Item Setting
SKIP OFF
AFT ON
C-SYSTEM AUTO
S-SYSTEM B/G
LAST POWER ON
LAST TV/AV TV
DIGIT 1DIG
LANGUAGE THAI
BLUE BACK ON
LAST POS 1
LAST FB POS 1
VOLUME MIN
CONTRAST MAX
COLOUR CENT
BRIGHTNESS CENT
TINT CENT
SHARPNESS CENT
20CT-250
5-1 5-2
Page 6
» Bias box: About 4.5 V
Oscilloscope
0.1V
TV Set
Bias box
TP210+
+
–
–
Fig. 4
SERVICE ADJUSTMENT
115V ADJUSTMENT
No. Adjusting point Adjusting procedure/conditions W aveform and others
115V
1
adjustment:
R711
6
No. Adjusting point Adjusting procedure/conditions W aveform and others
1
Tuner IFT
(preset):
TU201
1. Receive the Monoscope Pattern signal.
2. Set to the P-NORM mode.
3. Connect a DC milliammeter between TP602(–)
and TP603(+).
4. Take the beam ammeter reading to make sure
that the beam current is between 900 µA and
1100 µA.
* If not, readjust the FBT screen control to ob-
tain the beam current of 900-1100 µA.
5. Connect a digital voltmeter to TP701.
6. Adjust R711 so that the digital voltmeter should
read 115 ±0.5 V.
PIF CHECKING
1. Get the tuner ready to receive the E-9CH signal.
but with no signal input. Adjust the PLL data.
2. Connect the sweep generator’s output cable to
the tuner antenna. (RF sweep)
3. Adjust the sweep generator’s output level to 80
dBµV.
4. Connect the response lead (use a low-impedance
probe with wave detector; see
er’s IF output terminal.
(This terminal must have the probe alone connected.)
5. Set the RF AGC voltage to 0-6 V with no contact
with the waveform.
6. Adjust the tuner IF coil to obtain the waveform as
shown in
Fig. 2
.
Note: Be sure to keep the tuner cover in posi-
tion during this adjustment.
Fig. 1
) to the tun-
IF-OUT
1000p
75Ω
1000p
E-9CH
P
10kΩ
100kΩ
Oscilloscope
Fig. 1
C
– 1.5dB ± 0.8dB
Fig. 2
PIF/AFT/AGC ADJUSTMENT
No. Adjusting point Adjusting procedure/conditions W aveform and others
VCO adjust-
1 * Warm up the unit for longer than
ment: T203
AFT
2
adjustment:
T204
RF AGC
3
cut-in
adjustment:
R216
1. Disconnect the antenna from the tuner antenna
terminal.
2. Apply DC voltage to pin (4) of IC201 (IF AGC).
» DC voltage: 6.0 V (allowable +0.1 V)
3. Using a digital voltmeter, measure the DC voltage at pin (20)(PLL FIL) of IC201.
* The digital voltmeter must be able to take read-
ings down to the third decimal place.
4. Relieve pin (4) of IC201 of the DC voltage.
5. Reconnect the antenna in position and receive
the E-12CH signal. (With the AFT off, adjust the
receiving frequency to 224.25 MHz.)
6. Connect the DC digital voltmeter to pin (20) of
IC201. Adjust T203 so that the voltmeter should
read the same voltage as in Step 3.
Allowable error : 0.015 V (20 kHz)
1. Receive the PAL Colour Bar signal. If this signal
is not available, any signal above the E-5CH band
is acceptable.
» Field strength : 55-80 dBµV
Make sure the frequency is almost the same as
that of the received channel (±30 kHz).
2. Using the channel setting control, make a frequency of 224.25 MHz appear on the screen (the
AFT turns off). If any other channel than Colour
Bar is received, make its frequency on the screen.
(The AFT turns off when the on-screen display
turns yellow.)
3. Turn T204 clockwise to have a 6V point, and
counterclockwise to have a 0.2V point. Position
the coil at the center of these two points.
4. Adjust T204 so that the DC voltage at pin (1) (AFT
OUT terminal) of IC201 be 3.3 ±0.1 V. (See
1. Receive the PAL Colour Bar signal.
» Field strength : 57 ±1 dBµV (75 ohms open)
2. Connect the oscilloscope to TP210, as shown in
Fig. 4
.
3. Turn R216 to have the highest voltage.
4. Turn R216 slowly in the opposite direction until the
voltage goes down 0.1 V below the highest level.
5. Adjust the signal level to 63-67 dBµV and make
sure there is no noise.
6. Now adjust the signal level to 90-95 dBµV and make
sure there is no chrominance modulation beat.
Fig. 3
)
10 minutes in advance.
* 10 kHz at about 0.007 V.
* Position the T203 core in the
range in which the Colour Bar
signal can be received.
DC voltage at TP201
6V
3.3V
DOWN
A B' B B" C
Fig. 3
UP
20CT-250
6-1 6-2
Page 7
PURITY ADJUSTMENT
No. Adjusting point Adjusting procedure/conditions W aveform and others
1
Purity
adjustment
1. Using the remote controller, make the screen colour
green-only. Adjust the contrast control to have a beam
current of about 700 µA.
2. Degauss the cathode ray tube enough with the
degaussing coil.
3. Keep the purity magnet in the zero magnetic field
in advance. Roughly adjust the convergence.
4. Observe the points “a” and “b”, as shown in
5-1
, through a microscope. Adjust the landing to
the rank “A” requirements.
5. Adjust the raster rotation to “0” eastward.
6. Tighten up the deflection coil screws.
» Tightening torque: 108 ±20 N (11 ±2 kgf)
7. While observing the cathode ray tube corners.
apply the magnet sheet to have the landing at
rank “A”.
Note:Before starting this adjustment, warm
up the unit for 30 minutes or longer at
a beam current of over 700 µA.
Note: Set the service switch S1001 to call the
service mode and press the single-colour key on the process remote controller to get the green-only screen.
* Each time the single-colour key is pressed, the
screen colour changes as follows.
Fig.
a
7
Green-only
screen
Blue-only
screen
Single-colour
screen cleared
Red-only
screen
* Whether in the service mode or
not, hold down the single-colour
key for 1 second or longer and
the service mode is called.
The TEXT key or the R.G.Cy key
may be used instead to provide
the single-colour screens.
Fig. 5-1
A
B
Fig. 5-2
Rank "A" (on the
right of the CRT)
A
B
Fig. 5-3
Rank "A" (on the
left of the CRT)
b
A = B
A = B
CONVERGENCE ADJUSTMENT
No. Adjusting point Adjusting procedure/conditions W aveform and others
1
Convergence
adjustment
(to be done
after the purity
adjustment)
1. Receive the Crosshatch Pattern signal.
2. Using the remote controller, call the Normal mode.
STATIC CONVERGENCE
1. Turn the 4-pole magnet to a proper opening angle in order to superimpose the blue and red colours.
2. Turn the 6-pole magnet to a proper opening angle in order to superimpose the green colour over
the blue and red colours.
DYNAMIC CONVERGENCE
1. Adjust the convergence on the fringes of the
screen in the following steps.
Fig. 6-1
a)
b)
c)
d)
2. Fix all the wedges on the cathode ray tube and
apply glass tape over them.
3. Apply lacquer to the deflection yoke lock screw,
magnet unit (purity, 4-pole and 6-pole magnets),
and magnet unit lock screw.
Finally receive the red-only and blue-only signals
and make sure there is no other colour mixed on
the screen.
: Drive the wedge at point “a” and
swing the deflection coil upward.
Fig. 6-2
: Drive the wedges at points “b” and
“c” and swing the deflection coil downward.
Fig. 6-3
: Drive the “c” wedge deeper and
swing the deflection coil rightward.
Fig. 6-4
: Drive the “b” wedge deeper and
swing the deflection coil leftward.
B
G
R
R
G
B
About
100°
Lacquer
Wedge
"b"
BGR
Fig. 6-1
RGB
Fig. 6-2
RGB
Fig. 6-3
BGR
Fig. 6-4
Wedge "a"
Fig. 6-5
4-pole magnet
6-pole magnet
CRT neck
B
G
R
R
G
B
About
100°
Wedge
"c"
7-1 7-2
Purity magnet
Fig. 6-6
Lacquer
20CT-250
Page 8
CRT CUT-OFF, SUB-CONTRAST, WHITE BALANCE AND SUB
BRIGHTNES ADJUSTMENT
No. Adjusting point Adjusting procedure/conditions W aveform and others
1 * First of all, make sure that the
CRT cut-off
adjustment:
2
C bus control
I
adjustment
Sub contrast,
2
white balance,
& sub bright-
8
ness Service
mode adjustment:
2
I
C Bus Control Adjustment
1. Receive the Monoscope Pattern signal.
2. Set to the P-NORM mode.
3. Turn on the service switch and select the "Cutoff/background" mode.
4. Set the screen control to 0/10 position.
5. Press the “9” key on the remote controller to reach
the horizontal centering mode.
6. Turn the screen control clockwise until the horizontal raster of the first glimmering colour becomes slightly visible.
7. Adjust the cut-off data of the other two colours
until the horizontal raster becomes whitish.
8. Turn off the screen control (counterclockwise) until
the horizontal raster disappears.
Note:Before starting this adjustment, warm
up the unit for 30 minutes or longer at
a beam current of over 700 µA.
9. Press the “9” key on the remote controller to call
the NORMAL mode.
1. Receive the Monoscope Pattern signal.
2. Set to the P-NORM mode.
3. Connect the DC miliammeter between TP602 (-)
and TP603 (+).
» Full Scale: 3.0mA range
4. Make sure the beam current be 1,100µA.
5. Adjust the "G-DRIVE" and "B-DRIVE" data to have
a colour temperature of 12,300°K (white).
6. Adjust the contrast and brightness control to have
a beam current of 200µA.
If the colour temperature is not at 12,300°K, go back
to step1 above.
7. Receive the Crosshatch Pattern signal.
8. Adjust the "SUB BRI" bus data, so that the block
1st to 3rd inside the window area will
disappear.(black)
R/G/B cut-off data are all initial
values.
Note:
R CUT OFF UP “1” KEY
G CUT OFF UP “2” KEY
B CUT OFF UP “3” KEY
The data can be turned up and
down with the above keys.
* 12,300°K X: 0.273
(with colour temperature meter
CA-100 (MINOLT A).)
Note:
G-DRIVE UP “7” KEY
B-DRIVE UP “8” KEY
The data can be turned up and
down with the above keys.
1 2 3 4 5
Make sure all the 1st, 2nd
and 3rd black portions are at
the same black level.
DOWN “4” KEY
DOWN “5” KEY
DOWN “6” KEY
Y: 0.276
DOWN “-/--” KEY
DOWN “0” KEY
No. Adjusting point Adjusting procedure/conditions W aveform and others
Maximum
3
beam current
(check item)
1. Receive the Monoscope Pattern signal.
2. Set to the P-NORM mode.
3. Connect the DC ammeter between TP602 and
TP603.
» Ammeter’s full-scale : 3 mA range
» Ammeter’s positive (+) lead : TP603
» Ammeter’s negative (-) lead : TP602
4. Make sure the beam current is 1,100 ±100 µA.
Note:Before starting this adjustment, warm
up the unit for 30 minutes or longer at
a beam current of over 700 µA.
HORIZONTAL AND VERTICAL CIRCUIT ADJUSTMENT
No. Adjusting point Adjusting procedure/conditions W aveform and others
V-AMP 50
1 The selected channels in paren-
V-LINEARITY 50 Hz
V-S CORRECTION - 50 Hz
V-SHIFT 50 (V CENTER)
H-SHIFT (50)
(H-CENTER)
1. Adjust the overscan to 9% typical.
1. Adjust to get the best linearity.
1. Adjust the proper condition.
1. Align the screen center with the CRT's geometrical center (E-5).
1. Align the screen center with the CRT's geometrical center (E-5).
Note: For the V-AMP 60, V-LINEARITY 60, V -S
CORRECTION 60, V-SHIFT 60 and HSHIFT 60 adjustments, their corrected
data are automatically entered when the
corresponding 50 Hz mode adjustments
are made.
theses have the following signals.
(E-2): crosshatch pattern (50 Hz)
signal
(E-5): monoscope pattern (50 Hz)
signal
20CT-250
Focus adjust-
2
ment
1. Receive the Monoscope Pattern signal.
2. Set to the P-NORM mode.
3. Adjust the focus control so that the screen be in
best focusing.
8-1 8-2
Page 9
PAL CHROMA ADJUSTMENT
No. Adjusting point Adjusting procedure/conditions W aveform and others
1
Sub-colour
adjustment:
2
I
adjustment
C bus
1. Receive the PAL Colour Bar signal.
2. Set to the P-NORM mode.
3. Connect the oscilloscope to TP852 (RED cathode). (Use a 10 : 1 probe.)
» Range : 2 V/div.
» Sweep time : 20 µsec/div.
4. Using the remote controller, call the sub-colour
adjustment mode. Adjust the sub-colour data so
that the 75% white and red portions of the PAL
colour bar be at the same level. See
5. Clear the adjustment mode.
Fig. 7
.
W
Cy
G
Y 100%W
Fig. 7
Mg R
PROTECTOR PERFORMANCE CHECK
No. Adjusting point Adjusting procedure/conditions W aveform and others
Beam protector 1. Receive the Monoscope Pattern signal.
1
B
High-voltage
2
protector
2. Set the contrast control to maximum.
3. Set the brightness control to maximum.
4. Make a short-circuit between the collector and
emitter of Q851, Q852 or Q853 and make sure
that the protector is activated and the stand-by
mode is called.
1. Receive the Monoscope Pattern signal.
2. Connect the bias box to the cathode (R635 side)
of D607.
3. Adjust the bias box voltage to 18 V and make sure
that the protector is not activated.
4. Adjust the bias box voltage to 27 V and make sure
that the protector is not activated.
9
NTSC CHROMA ADJUSTMENT
No. Adjusting point Adjusting procedure/conditions W aveform and others
1
Sub-tint
adjustment:
2
I
adjustment
C bus
1. Receive the NTSC 3.58 Colour Bar signal in the
A/V mode.
2. Connect the oscilloscope to pin (36) of IC801(BY) .
» Range : 20 mV/div.
» Sweep time : 20 µsec/div. (Use a 10 : 1 probe.)
3. Adjust the sub-tint data to obtain the waveform
as shown in
4. Clear the adjustment mode.
Fig. 8
.
(B–Y)
A
B
C
WYCy G Mg R
Fig. 8
A=B=C
Other protec-
3
tors
1. In checking the performance of other protectors
— for example, the one against shorting of
smoothing electrolytic capacitor of +B line —, pay
attention not to damage or deteriorate any related
element.
A/V INPUT AND OUTPUT CHECK
No. Adjusting point Adjusting procedure/conditions W aveform and others
Video and
1
audio output
check
B
Video and
2
audio input
check
1. Receive the Colour Bar (100% white colour bar,
400 Hz, 100% modulation audio) signal.
2. T erminate the video output with a 75 ohm impedance. Make sure the output is as specified
(1.0 Vp-p ±3 dB).
3. Terminate the audio output with a 10k ohm impedance. Make sure the output is as specified
(1.76 Vp-p ±3 dB).
1. Using the TV/AV key on the remote controller,
make sure that the modes change in the order of
TV, AV and TV again and that the video and audio outputs are according to the input and output
terminals for each mode.
20CT-250
9-1 9-2
Page 10
FUNCTION CHECK (VIDEO AND AUDIO)
No. Adjusting point Adjusting procedure/conditions W aveform and others
Contrast key 1. Receive the E-5CH signal.
10
1
Colour key 1. Receive the E-12CH signal.
2
Brightness
3
key
Tint key 1. Receive the NTSC colour bar signal. (A/V In Only)
4
2. Select the contrast on the P-MODE screen.
3. Check whether the Contrast is OK or not with Up/
Down keys.
2. Select the colour on the P-MODE screen.
3. Check whether the Colour is OK or not with Up/
Down keys.
1. Receive the E-5CH signal.
2. Select the brightness on the P-MODE screen.
3. Check whether the Brightness is OK or not with
Up/Down keys.
2. Select the tint on the P-MODE screen.
3. The tint must be changeable toward green with
the UP key and toward red with the DOWN key.
No. Adjusting point Adjusting procedure/conditions W aveform and others
Channel sign
7
display colour
COLOUR
8
SYSTEM key
Bilingual Key 1. Receive Bilingual sound signal, press the "Bilin-
9
1. The display colour of all the channel (0-99) signs
must be green Under the AFT on mode.
1. Receive the NTSC 3.58 colour bar (A/V) signal.
Using the COLOUR SYSTEM key, select a mode
other than N3.58 and make sure the colour system does not work properly.
gual" key. Check whether there is change
SOUND-1 to SOUND-2.
20CT-250
PIC-Normal.
5 * The contrast, colour, brightness,
key
Sharpness key 1. Receive the E-5CH signal.
6
1. Press the Normal key on the P-MODE screen to
make sure all the displayed items are at normal
settings.
See below for the normal settings.
» Contrast : MAX
» Colour : CENTER
» Brightness : CENTER
» Tint : CENTER
» Sharpness : CENTER
2. Select the sharpness on the P-MODE screen.
3. Check whether the Sharpness is OK or not with
Up/Down keys.
tint and sharpness settings are
all normal when these items do
not appear on the screen.
10-1 10-2
10
Noise mute
check
1. Receive the PAL Colour Bar signal.
2. Turn up the sound volume to maximum and make
sure the sound is heard normally from the speakers. Then cut off the signal.
3. Make sure the sound muting functions.
4. Finally turn down the sound volume to minimum.
Page 11
MEMORY MAP (RH-iX3031CEZZ)
DATA
11
SUB
ADDRESS
76543210
000 Initialization judgment data “23” Other than $23 $23
001 Initialization judgment data “20” Other than $20 $20
002 Initialization judgment data “13” Other than $13 $13
003 Initialization judgment data “61” Other than $61 $61
004 PLL data (upper) CH0
005 PLL data (lower)
006 PLL data (upper) CH1
007 PLL data (lower)
008 PLL data (upper) CH2
009 PLL data (lower)
00A PLL data (upper) CH3
00B PLL data (lower)
00C PLL data (upper) CH4
00D PLL data (lower)
00E PLL data (upper) CH5
00F PLL data (lower)
010 PLL data (upper) CH6
011 PLL data (lower)
012 PLL data (upper) CH7
013 PLL data (lower)
014 PLL data (upper) CH8
015 PLL data (lower)
016 PLL data (upper) CH9
017 PLL data (lower)
018 PLL data (upper) CH10
019 PLL data (lower)
01A PLL data (upper) CH11
01B PLL data (lower)
01C PLL data (upper) CH12
01D PLL data (lower)
01E PLL data (upper) CH13
01F PLL data (lower)
020 PLL data (upper) CH14
021 PLL data (lower)
022 PLL data (upper) CH15
023 PLL data (lower)
024 PLL data (upper) CH16
025 PLL data (lower)
026 PLL data (upper) CH17
027 PLL data (lower)
028 PLL data (upper) CH18
029 PLL data (lower)
02A PLL data (upper) CH19
02B PLL data (lower)
02C PLL data (upper) CH20
02D PLL data (lower)
02E PLL data (upper) CH21
02F PLL data (lower)
REMARKS CRITERIA
FACTORY
SETTING
SUB
ADDRESS
76543210
030 PLL data (upper) CH22
031 PLL data (lower)
032 PLL data (upper) CH23
033 PLL data (lower)
034 PLL data (upper) CH24
035 PLL data (lower)
036 PLL data (upper) CH25
037 PLL data (lower)
038 PLL data (upper) CH26
039 PLL data (lower)
03A PLL data (upper) CH27
03B PLL data (lower)
03C PLL data (upper) CH28
03D PLL data (lower)
03E PLL data (upper) CH29
03F PLL data (lower)
040 PLL data (upper) CH30
041 PLL data (lower)
042 PLL data (upper) CH31
043 PLL data (lower)
044 PLL data (upper) CH32
045 PLL data (lower)
046 PLL data (upper) CH33
047 PLL data (lower)
048 PLL data (upper) CH34
049 PLL data (lower)
04A PLL data (upper) CH35
04B PLL data (lower)
04C PLL data (upper) CH36
04D PLL data (lower)
04E PLL data (upper) CH37
04F PLL data (lower)
050 PLL data (upper) CH38
051 PLL data (lower)
052 PLL data (upper) CH39
053 PLL data (lower)
054 PLL data (upper) CH40
055 PLL data (lower)
056 PLL data (upper) CH41
057 PLL data (lower)
058 PLL data (upper) CH42
059 PLL data (lower)
05A PLL data (upper) CH43
05B PLL data (lower)
05C PLL data (upper) CH44
05D PLL data (lower)
05E PLL data (upper) CH45
05F PLL data (lower)
DATA
REMARKS CRITERIA
FACTORY
SETTING
20CT-250
11-1 11-2
Page 12
12
SUB
ADDRESS
76543210
060 PLL data (upper) CH46
061 PLL data (lower)
062 PLL data (upper) CH47
063 PLL data (lower)
064 PLL data (upper) CH48
065 PLL data (lower)
066 PLL data (upper) CH49
067 PLL data (lower)
068 PLL data (upper) CH50
069 PLL data (lower)
06A PLL data (upper) CH51
06B PLL data (lower)
06C PLL data (upper) CH52
06D PLL data (lower)
06E PLL data (upper) CH53
06F PLL data (lower)
070 PLL data (upper) CH54
071 PLL data (lower)
072 PLL data (upper) CH55
073 PLL data (lower)
074 PLL data (upper) CH56
075 PLL data (lower)
076 PLL data (upper) CH57
077 PLL data (lower)
078 PLL data (upper) CH58
079 PLL data (lower)
07A PLL data (upper) CH59
07B PLL data (lower)
07C PLL data (upper) CH60
07D PLL data (lower)
07E PLL data (upper) CH61
07F PLL data (lower)
080 PLL data (upper) CH62
081 PLL data (lower)
082 PLL data (upper) CH63
083 PLL data (lower)
084 PLL data (upper) CH64
085 PLL data (lower)
086 PLL data (upper) CH65
087 PLL data (lower)
088 PLL data (upper) CH66
089 PLL data (lower)
08A PLL data (upper) CH67
08B PLL data (lower)
08C PLL data (upper) CH68
08D PLL data (lower)
08E PLL data (upper) CH69
08F PLL data (lower)
DATA
REMARKS CRITERIA
FACTORY
SETTING
SUB
ADDRESS
76543210
090 PLL data (upper) CH70
091 PLL data (lower)
092 PLL data (upper) CH71
093 PLL data (lower)
094 PLL data (upper) CH72
095 PLL data (lower)
096 PLL data (upper) CH73
097 PLL data (lower)
098 PLL data (upper) CH74
099 PLL data (lower)
09A PLL data (upper) CH75
09B PLL data (lower)
09C PLL data (upper) CH76
09D PLL data (lower)
09E PLL data (upper) CH77
09F PLL data (lower)
0A0 PLL data (upper) CH78
0A1 PLL data (lower)
0A2 PLL data (upper) CH79
0A3 PLL data (lower)
0A4 PLL data (upper) CH80
0A5 PLL data (lower)
0A6 PLL data (upper) CH81
0A7 PLL data (lower)
0A8 PLL data (upper) CH82
0A9 PLL data (lower)
0AA PLL data (upper) CH83
0AB PLL data (lower)
0AC PLL data (upper) CH84
0AD PLL data (lower)
0AE PLL data (upper) CH85
0AF PLL data (lower)
0B0 PLL data (upper) CH86
0B1 PLL data (lower)
0B2 PLL data (upper) CH87
0B3 PLL data (lower)
0B4 PLL data (upper) CH88
0B5 PLL data (lower)
0B6 PLL data (upper) CH89
0B7 PLL data (lower)
0B8 PLL data (upper) CH90
0B9 PLL data (lower)
0BA PLL data (upper) CH91
0BB PLL data (lower)
0BC PLL data (upper) CH92
0BD PLL data (lower)
0BE PLL data (upper) CH93
0BF PLL data (lower)
DATA
REMARKS CRITERIA
20CT-250
FACTORY
SETTING
12-1 12-2
Page 13
13
SUB
ADDRESS
76543210
0C0 PLL data (upper) CH94
0C1 PLL data (lower)
0C2 PLL data (upper) CH95
0C3 PLL data (lower)
0C4 PLL data (upper) CH96
0C5 PLL data (lower)
0C6 PLL data (upper) CH97
0C7 PLL data (lower)
0C8 PLL data (upper) CH98
0C9 PLL data (lower)
0CA PLL data (upper) CH99
0CB PLL data (lower)
0CC
POWER
0CD
BLUE BACKGROUND O
0CE LANGUAGE 01
0CF LAST POSITION 01
0D0 LAST CONTRAST 3F
0D1 LAST COLOUR 1F
0D2 LAST BRIGHTNESS 1F
0D3 LAST TINT 1F
0D4 LAST SHARPNESS 1F
0D5 LAST VOLUME 00
0D6 LAST SER VICE MODE 00
0D7
0D8
0D9
0DA
0DB
0DC
0DD
0DE
0DF
0E0
CH7 CH5 CH5 CH4 CH3 CH2 CH1 CH0
0E1
CH15 CH14 CH13 CH12 CH11 CH10 CH9 CH8
0E2
CH23 CH22 CH21 CH20 CH19 CH18 CH17 CH16
0E3
CH31 CH30 CH29 CH28 CH27 CH26 CH25 CH24
0E4
CH39 CH38 CH37 CH36 CH35 CH34 CH33 CH32
0E5
CH47 CH46 CH45 CH44 CH43 CH42 CH41 CH40
0E6
CH55 CH54 CH53 CH52 CH51 CH50 CH49 CH48
0E7
CH63 CH62 CH61 CH60 CH59 CH58 CH57 CH56
0E8
CH71 CH70 CH69 CH68 CH67 CH66 CH65 CH64
0E9
CH79 CH78 CH77 CH76 CH75 CH74 CH73 CH72
0EA
CH87 CH86 CH85 CH84 CH83 CH82 CH81 CH80
0EB
CH95 CH94 CH93 CH92 CH91 CH90 CH89 CH88
0EC
0ED
0EE
0EF
DATA
TV/AV 80
ne-digit/two-digit OFF/
CH99 CH98 CH97 CH96
REMARKS CRITERIA
.
Factory-set at ON AA
AFT AFT OFF FF
0 : OFF
1 : ON
FACTORY
SETTING
SUB
ADDRESS
76543210
0F0
CH7 CH5 CH5 CH4 CH3 CH2 CH1 CH0
0F1
CH15 CH5 CH5 CH4 CH3 CH2 CH1 CH0
0F2
CH23 CH22 CH21 CH20 CH19 CH18 CH17 CH16
0F3
CH31 CH30 CH29 CH28 CH27 CH26 CH25 CH24
0F4
CH39 CH38 CH37 CH36 CH35 CH34 CH33 CH32
0F5
CH47 CH46 CH45 CH44 CH43 CH42 CH41 CH40
0F6
CH55 CH54 CH53 CH52 CH51 CH50 CH49 CH48
0F7
CH63 CH62 CH61 CH60 CH59 CH58 CH57 CH56
0F8
CH71 CH70 CH69 CH68 CH67 CH66 CH65 CH64
0F9
CH79 CH78 CH77 CH76 CH75 CH74 CH73 CH72
0FA
CH87 CH86 CH85 CH84 CH83 CH82 CH81 CH80
0FB
CH95 CH94 CH93 CH92 CH91 CH90 CH89 CH88
0FC
0FD
0FE
0FF
DATA
CH99 CH98 CH97 CH96
REMARKS CRITERIA
SKIP SKIP ON 00
0 : OFF
1 : ON
FACTORY
SETTING
13-1 13-2
20CT-250
Page 14
14
SUB
ADDRESS
76543210
164 AUDIO SYSTEM (1) VIDEO SYSTEM (2) AUTO 00
165
166
167
168
169
16A
16B
16C
16D
16E
16F
170 CUT OFF (R) 0 00
171 CUT OFF (G) 0 00
172 CUT OFF (B) 0 00
173 DRIVE (G) 127 7F
174 DRIVE (R) 127 7F
175 TV H-CENTER (50Hz) 7 07
176 TV H-CENTER (60Hz) 12 0C
177 H BLK PHASE V-CENTER 50 0,5 05
178 V-AMPLITUDE 50 58 74
179 V S-CORRECTION 50 67 86
17A V-LINEALITY 50 16 80
17B Y SUB CONTRAST 18 12
17C SUB COLOUR 110 6E
17D SUB BRIGHT 127 7F
17E SUB TINT 70 46
17F SUB SHARPNESS 28 1C
180 DELA Y PAL (AV) DELAY PAL (TV) 2,2 22
181 DELAY SECAM (AV) DELAY SECAM (TV) 4,4 44
182 DELAY NTSC (AV) DELAY NTSC (TV) 2,2 22
183 DELAY B/W (AV) DELAY B/W (TV) 2,2 22
184 R-Y BLACK OFFSET B-Y BLACK OFFSET 10,6 A6
185
186 V-CENTER 60 2 02
187 V-AMPLITUDE 60 59 76
188 V S-CORRECTION 60 74 E8
189 V -LINEARITY 60 14 70
18A WIDE V-BLK START PHASE 50 58 3A
18B WIDE V-BLK START PHASE 60 60 3C
18C WIDE V-BLK STOP PHASE 50 25 19
18D WIDE V-BLK STOP PHASE 60 20 14
18E SUB CONTRAST 255 FF
18F
DATA
Y-MUTE AV2
REMARKS CRITERIA
OFF/ON 04
FACTOR Y
SETTING
SUB
ADDRESS
76543210
190
P/N KIL
191 RGB CONTRAST 255 FF
192
193
194
195
196
197
198
199
19A
19B
19C
19D
19E
19F
1A0
1A1
1A2
1A3
1A4
1A5
1A6
1A7
1A8 N358 SHARPNESS 10 0A
1A9
1AA FAVORITE CH (RED) 10CH 0A
1AB FAVORITE CH (GREEN) 20CH 14
1AC FAVORITE CH (YELLOW) 30CH 1E
1AD FAVORITE CH (CYAN) 40CH 28
1AE
1AF
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
1B8
1B9
1BA
1BB
1BC
1BD
1BE
1BF
NOISE DET
Y γ WPL SW
B.S OFF P/N GP CL-L SW
CLL LEVEL PN CD ATT
BLACK STRETCH OFFSET DC TRAN RA TE APA-CON F0
ABL POINT ABL GAIN
NOISE DET LEVEL
N COMB
S-FIELD SCD ATT DEMP F0 S GP V-ID SW S KIL BELL F0
TOF Q (AV) TOF F0 (AV) TOF Q (TV) TOF F0 (TV)
TOF Q (AV) TOF F0 (AV) TOF Q (TV) TOF F0 (TV)
TOF Q (AV) TOF F0 (AV) TOF Q (TV) TOF F0 (TV)
TOF Q (AV) TOF F0 (AV) TOF Q (TV) TOF F0 (TV)
C-TRAP Q (AV) C-TRAP F0 (AV) C-TRAP Q (TV) C-TRAP F0 (TV)
C-TRAP Q (AV) C-TRAP F0 (AV) C-TRAP Q (TV) C-TRAP F0 (TV)
C-TRAP Q (AV) C-TRAP F0 (AV) C-TRAP Q (TV) C-TRAP F0 (TV)
C-TRAP Q (AV) C-TRAP F0 (AV) C-TRAP Q (TV) C-TRAP F0 (TV)
N358 TR
DATA
AFC MODE
COINCIDENT
REMARKS CRITERIA
000
0,0 00
102
0,0,1 00
2,2 A0
7,2,2 EA
0,1 04
0 01*
000
180
PAL 8B
SECAM 8B
N443 8B
N358 8B
PAL 66
SECAM 66
N443 66
N358 66
ON 00
20CT-250
FACTORY
SETTING
21
14-1 14-2
Page 15
TROUBLE SHOOTING TABLE
TROUBLE SHOOTING TABLE
(Continued)
NO PICTURE, NO SOUND
YES
YES
YES
(Signal)
NO
YES
(Noise)
NO
NO
Does noise or signal appear
at pin (13) of IC201 ?
NO SOUND
No snow noise.
Does noise or signal appear at pin (21)
of IC201 ?
Noise increases but no signal is
received.
Check the tuner supply voltage MB
must be approx, 9V. BP must approx.
5V. BT must be approx, 31V. And CH
preset data check.
Check the tuner AGC.
Normal
Normal Abnormal
Does noise or
signal appear at
pin (1) of IC801 ?
Check PIF circuits
and its related
parts.
Check IC801.
Check A/V sw
circuits (IC401).
Check IC201.
Check the tuner
circuit.
Does the noise level increase at max.
Contrast, Brightness and Sound controls ?
CIRCUITS TO BE CHECKED:
» Tuner.
» PIF.
» Automatic Gain Control.
» (5V), (9V) Power Source.
CIRCUITS TO BE CHECKED:
» SIF Amplifier Circuit.
» Sound Detector Circuit.
» Sound Switch and Att. Control.
» Audio Output Circuit.
YES
NO
YES
NO
Does signal appear at pin
(1) and (8) of IC302 ?
Does signal appear at pin
(3) of IC351 ?
Check pin (5) of IC351 and
peripheral circuit.
Check IC201 and peripheral
circuit.
Check pin (14), (15) of
IC201.
Check Q207 and peripheral
circuit.
Check IC302 and peripheral
circuit.
NO RASTER
Abnormal
Check R702 and D709.
Abnormal
Check D708 and D732.
15
Normal
Check R609 and R611.
Check F701.
Normal
Check T701 pin (1) voltage
Fig. 1
(Approx. 310V at 220V AC)
Normal
Check Secondary Main+B
(Approx. 115V)
Normal
Check CRT connector K1K5 bias.
Normal Abnormal
Check
C866 and
L851.
Horizontal circuit oscillate ?
Check Q1005, Q1006,
IC603 and IC801.
If a bus error happens, the LED RED (pin 3) indicator starts flashing and the power
is turned off. The power key is still effective.
IC1003
EEPROM (ST24C04)
IC801
V/C/J (TB1226DN)
TU201
PLL (N0004KJ)
Check
IC801
NO
2s 0.5s
15-1 15-2
Blown out.
Replace the fuse.
The fuse is again blown out.
Check Q701 and IC751.
YES
YES
Normal
Check C707, D701, D702,
D703 and D704.
D1013 (Power LED Green)
turns on.
D1013 (Power LED Red)
turns on or turns ON/OFF.
Bus error
mode.
See
or Check
IC602.
NO
ON/OFF ON
Checking the
protector circuit
(The protector
Fig. 1
circuit still works
even if there is no
vertical waveform
at pin (2) of IC1001.)
20CT-250
Page 16
TROUBLE SHOOTING TABLE
(Continued)
TROUBLE SHOOTING TABLE
20CT-250
(Continued)
CIRCUIT TO BE CHECKED:
» Sync. Separator Circuit.
16
NEITHER VERTICAL NOR
HORIZONTAL SYNCHRONIZATION
Check IC801 and Q401.
DEFECTIVE VERTICAL AMP.
AND VERTICAL LINEARITY
Readjust vertical size.
(Bas Data)
Vertical size is abnormal.
Check R510, C513, C514
and C501.
Vertical linearity is abnormal.
Check C515, C519, R511,
R513 and R514.
NO VERTICAL SCAN
Check IC501 bias.
Normal Abnormal
NO SPECIFIC COLOUR
NO YES
Is some colour produced in
B/W broadcast reception ?
YES
Check IC801, R809, R810,
R811, D801, D802, D803,
Q801, Q802, Q803,Q804
and Q805.
Check Q851 and its
adjacent circuits.
Check Q852 and its
adjacent circuits.
Is the white balance properly
adjusted ?
NO
Readjust the white balance.
The picture colour is yellow.The picture colour is magenta.The picture colour is cyan.
Check Q853 and its
adjacent circuits.
NO SPECIFIC COLOUR
“PAL”/“NTSC”/“SECAM”
(NO COLOUR SYNCHRONIZATION)
Check IC801 and bias
Normal Normal
Check X801, C810, C815,
Check IC501.Check C506.
C816 and R814.
control circuit.
“SECAM”“PAL”/“NTSC”
Check C901 and pin (31) of
IC1001.
16-1 16-2
Page 17
CHASSIS LA YOUT
H
G
F
20CT-250
E
21CT -25
as is
D
C
B
A
654321
17
Page 18
20CT-250
SOLID STA TE DEVICE BASE DIAGRAM
TOP VIEW
85
14
ST24C04
16 9
18
iX1779CE
22 12
111
BA7357S
SIDE VIEW
42 22
121
56 29
128
iX3031
TB1226
BASE
COLLECTOR
EMITTER
2SA1015
2SC1815
2SC1906
BCE BCE
BASE
COLLECTOR
EMITTER
2SC2482
123 3 2 1
KiA7045P
TA78L09
ANODE
(RED)
CATHODE
(COMMON)
ANODE
(GREEN)
PX0003PE2SD18842SD2586
CATHODE
ANODE
ECB
19
UPC78L05 iX0037CE 2SC3789 TA7348P
123
1917
TDA7056A iX0640CE
KA7809
KA7805
18
Page 19
DESCRIPTION OF SCHEMATIC DIAGRAM
20CT-250 20CT-250
ËË
Ë
ËË
T uner
NOTE: The parts here shown are supplied as an assembly but not independently.
åå
åRTUNQ0004KJZZ
åå
H
SAFETY NOTES:
1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE
REPLACING PAR TS.
2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS
POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OPERATING.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH "å" ( ) ARE IMPORTANT FOR
G
MAINTAINING THE SAFETY OF THE SET . BE SURE T O REPLACE
THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.
SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE (
CONNECTED WITH AC MAINS VOL T AGE.
WHEN SERVICING THE AREA, CONNECT AN ISOLA TING TRANS-
F
FORMER BETWEEN TV RECEIVER AND AC LINE TO ELIMINATE
HAZARD OF ELECTRIC SHOCK.
) IS DIRECTL Y
W AVEFORMS
E
NOTES:
1. The unit of resistance "ohm" is omitted.
(K = 1000 ohms, M = Meg ohm).
2. All resistors are 1/8 watt, unless otherwise noted.
3. All capacitors are µF, unless otherwise noted. (P = µµF).
4. All capacitors are 50V, unless otherwise noted.
VOL T AGE MEASUREMENT CONDITIONS:
1. Voltage in parenthesis measured with no Signal.
2. Voltages without parenthesis measured with 3mV B & W or
Colour-Signal.
3. All the voltages in each point are measured with VTVM.
WAVEFORM MEASUREMENT CONDITIONS:
1. Colour bar generator signal of 1.5V peak to peak applied at
Base of Video Buffer Amp. Q202.
2. Approximately 4.0 V AGC bias.
H
G
F
E
1 2.0 Vp-p (H)
D
C
6 3.0 Vp-p (H)
B
11
1.8 Vp-p (V)
2 1.3 Vp-p (H) 3 1.5 Vp-p (H) 4 3.0 Vp-p (H)
7 80 Vp-p (H) 8 80 Vp-p (H) 9 80 Vp-p (H)
12
0.8 Vp-p (H)
13
9.2 Vp-p (H)
14
1.8 Vp-p (V)
5 3.0 Vp-p (H)
10
5.7 Vp-p (H)
15
55 Vp-p (V)
ËË
Ë
ËË
Infrared Remote Control Unit
NOTE: The parts here shown are supplied as an assembly but not independently.
D
C
B
RRMCG0018PESA
A
16
145 Vp-p (H)
17
1000 Vp-p (H)
18
150 Vp-p (H)
A
19
520 Vp-p (H)
19 20
121110987654321
654321
Page 20
SCHEMA TIC DIAGRAM
H
G
F
20CT-250 20CT-250
E
D
C
B
A
121110987654321
21 22
Page 21
BLOCK DIAGRAM
H
G
F
20CT-250 20CT-250
E
D
C
B
A
121110987654321
23 24
Page 22
PRINTED WIRING BOARD ASSEMBLIES
(All the PWBs here are shown as viewed from their wiring sides)
H
20CT-250 20CT-250
G
21CT-25
as is
(K9399WE)
F
PWB-B: CRT Socket Unit
E
21CT-25
as is
(K9398WE)
D
C
B
A
PWB-A: Main Unit
121110987654321
25 26
Page 23
20CT-250
Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code
P ARTS LIST
PARTS REPLACEMENT
Replacement parts which have these special safety characteristics
identified in this manual: electrical components having such features
are identified by "å" in the Replacement Parts Lists.
The use of a substitute replacement part which does not have the
same safety characteristics as the factory recommended replacement parts shown in this service manual may create shock, fire or
other hazards.
"HOW TO ORDER REPLACEMENT PARTS"
To have your order filled promptly and correctly, please furnish the
following informations.
1. MODEL NUMBER 2. REF. NO.
3. PART NO. 4. DESCRIPTION
MARK ★ : SPARE PARTS-DELIVERY SECTION.
Ref. No. Part No. ★ Description Code
PICTURE TUBE
å V1 VB48LGS10X/*S Picture Tube
å L708 RCiLG0002KJZZ Degaussing(ADG) Coil
å DY1 RCiLH1837CEZZ Deflection Yoke
LHLDW0003PEKZ J ADG Coil Holder AB
MSPRT0001PEFJ J CRT Spring AC
PMAGF3041CEZZ R Purity Magnet AG
PSPAG0004KJZZ Wedge, Rubber, x3
QEARC2006CEZZ Grounding Strap
PRINTED WIRING BOARD ASSEMBLIES
(NOT REPLACEMENT ITEM)
PWB-A DUNTK9398WET4 – MAIN Unit —
PWB-B DUNTK9399WET4 – CRT Unit —
å TU201 RTUNQ0004KJZZ R Tuner
å IC751 RH-iX1779CEZZ R TEA2261 AR
å Q602 VS2SD2586//1E R 2SD2586 AM
å Q701 VS2SD1884//-1 R 2SD1884 AN
PWB-A: DUNTK9398WET4
MAIN UNIT
TUNER
NOTE: THE PARTS HERE SHOWN ARE SUPPLIED AS AN
ASSEMBL Y BUT NOT INDEPENDENTL Y.
INTEGRATED CIRCUITS
IC201 VHiBA7357S/-1 R BA7357S AR
IC202 RH-iX0037CEZZ R UPC574J AF
IC302 VHiTA7348P/-1 J T A7348P AK
IC351 VHiTDA7056A-1 R TDA7056A AP
IC401 VHiTA7348P/-1 J T A7348P AK
IC501 VHiLA7830//-1 R LA7830 AH
IC602 VHiKA7809Pi-1 J KA7809PI AE
IC603 VHiTA78L09S-1 R TA78L09S AC
IC604 VHiKA7805Pi-1 J KA7805PI AE
IC801 VHiTB1226DN-1 R TB1226DN BB
IC1001 RH-iX3031CEZZ R M37221M4-110SP AW
IC1002 VHiKiA7045P-1 R KIA7045P AD
IC1003 VHiST24C04/-1 R ST24C04CB6 AQ
IC1004 VHiUPC78L05-4 R UPC78L05J AD
TRANSISTORS
Q201 VS2SC1906//1E R 2SC1906 AC
Q202 VS2SC1906//1E R 2SC1906 AC
Q203 VS2SC1906//1E R 2SC1906 AC
Q205 VS2SC1815GW-1 R 2SC1815GW AB
Q207 VS2SC1815GW-1 R 2SC1815GW AB
Q301 VS2SC1815GW-1 R 2SC1815GW AB
Q302 VS2SC1815GW-1 R 2SC1815GW AB
Q303 VS2SC1815GW-1 R 2SC1815GW AB
Q305 VS2SC1815GW-1 R 2SC1815GW AB
Q401 VS2SA1015Y/1E R 2SA1015Y AC
Q404 VS2SC1815GW-1 R 2SC1815GW AB
Q405 VS2SA1015G/1E R 2SA1015 AC
Q601 VS2SC2482//-1 R 2SC2482 AD
Q606 VS2SC1815GW-1 R 2SC1815GW AB
Q607 VS2SC1815GW-1 R 2SC1815GW AB
Q801 VS2SC1815GW-1 R 2SC1815GW AB
Q802 VS2SA1015Y/1E R 2SA1015Y AC
Q803 VS2SA1015Y/1E R 2SA1015Y AC
Q804 VS2SA1015Y/1E R 2SA1015Y AC
Q805 VS2SA1015Y/1E R 2SA1015Y AC
Q1001 VS2SC1815GW-1 R 2SC1815GW AB
Q1002 VS2SC1815GW-1 R 2SC1815GW AB
Q1003 VS2SA1015Y/1E R 2SA1015Y AC
Q1004 VS2SA1015Y/1E R 2SA1015Y AC
Q1005 VS2SA1015Y/1E R 2SA1015Y AC
Q1006 VS2SC1815GW-1 R 2SC1815GW AB
DIODES
D201 RH-DX0475CEZZ R Diode AB
27
Page 24
20CT-250
Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code
PWB-A: DUNTK9398WET4
MAIN UNIT (Continued)
D302 RH-DX0224CEZZ R Diode AB
D303 RH-DX0475CEZZ R Diode AB
D304 RH-DX0475CEZZ R Diode AB
D305 RH-DX0475CEZZ R Diode AB
D403 RH-DX0475CEZZ R Diode AB
D404 RH-DX0475CEZZ R Diode AB
D501 RH-DX0279CEZZ R Diode AB
D502 RH-DX0127CEZZ R Diode AC
D503 RH-EX0675GEZZ R Zener Diode, 33V AB
D504 RH-EX0675GEZZ R Zener Diode, 33V AB
D601 RH-EX0612GEZZ R Zener Diode, 5.1V AA
D602 RH-EX0631GEZZ R Zener Diode, 9.1V AA
D603 RH-DX0062CEZZ R Diode AD
D604 RH-DX0279CEZZ R Diode AB
D606 RH-DX0475CEZZ R Diode AB
D607 RH-EX0799CEZZ R Zener Diode AB
D611 RH-DX0475CEZZ R Diode AB
D618 RH-DX0475CEZZ R Diode AB
D619 RH-DX0475CEZZ R Diode AB
D657 RH-EX0604GEZZ R Zener Diode, 3.9V AB
å D701 RH-DX0279CEZZ R Diode AB
å D702 RH-DX0279CEZZ R Diode AB
å D703 RH-DX0279CEZZ R Diode AB
å D704 RH-DX0279CEZZ R Diode AB
å D705 RH-DX0130CEZZ R Diode AE
å D706 RH-DX0130CEZZ R Diode AE
å D708 RH-EX0914CEZZ R Zener Diode, 3.9V AD
å D709 RH-DX0302CEZZ R Diode AC
å D710 RH-DX0027CEZZ R Diode AE
D732 RH-DX0388CEZZ R Diode AE
D733 RH-DX0302CEZZ R Diode AC
D801 RH-DX0475CEZZ R Diode AB
D802 RH-DX0475CEZZ R Diode AB
D803 RH-DX0475CEZZ R Diode AB
D804 RH-DX0475CEZZ R Diode AB
D1003 RH-EX0619GEZZ R Zener Diode, 6.2V AA
D1004 RH-EX0619GEZZ R Zener Diode, 6.2V AA
D1008 RH-EX0619GEZZ R Zener Diode, 6.2V AA
D1012 RH-EX0619GEZZ R Zener Diode, 6.2V AA
D1013 RH-PX0003PEZZ J LED Red/Green AF
D1014 RH-EX0619GEZZ R Zener Diode, 6.2V AA
D1015 RH-EX0619GEZZ R Zener Diode, 6.2V AA
D1018 RH-DX0475CEZZ R Diode AB
D1019 RH-DX0475CEZZ R Diode AB
D1020 RH-DX0475CEZZ R Diode AB
D1021 RH-DX0475CEZZ R Diode AB
D1026 RH-EX0619GEZZ R Zener Diode, 6.2V AA
å VA702 RH-VX0048CEZZ R Varistor AE
PACKAGED CIRCUITS
å PR701 RMPTP0001PEZZ J Packaged Circuit AN
X801 RCRSB0244CEZZ R Crystal, 16.2MHz AH
COILS AND TRANSFORMERS
CF201 RFiLA0042CEZZ R Filter AD
CF202 RFiLA0095CEZZ R Filter AE
CF203 RFiLC0411CEZZ R Filter AE
CF1001 RFiLA0084CEZZ R Filter AE
L201 VP-DF270K0000 R Peaking 27µH AB
L202 VP-DF270K0000 R Peaking 27µH AB
L203 VP-DF270K0000 R Peaking 27µH AB
L204 VP-XF1R0K0000 R Peaking 1µH AB
L206 VP-XF390K0000 R Peaking 39µH AB
L401 VP-CF101K0000 R Peaking 100µH AB
L602 RCiLP0224CEZZ R Peaking Coil AE
L605 VP-DF101K0000 R Peaking 100µH AB
L609 VP-CF1R0M0000 R Peaking 1µH AB
L632 RCiLP0225CEZZ R Coil AF
å L702 RCiLF0105CEZZ R Coil AP
å L705 VP-CF3R3K0000 R Peaking 3.3µH AB
å L712 VP-CF100K0000 R Peaking 10µH AB
L801 VP-DF101K0000 R Peaking 100µH AB
L802 VP-DF101K0000 R Peaking 100µH AB
L1001 VP-DF1R0K0000 R Peaking 1µH AB
SF201 RFiLC0018PEZZ J SAW Filter AL
T203 RCiLD0238CEZZ R VCO Coil AE
T204 RCiLD0239CEZZ R AFT Coil AE
å T601 RTRNZ0026PEZZ J Transformer AH
å T602 RTRNF0147PEZZ J H-Volt Transformer BC
å T701 RTRNZ0120PEZZ J Transformer BB
CONTROLS
R216 RVR-M4169GEZZ R 47k (B) RF-AGC AB
å R711 RVR-M4324CEZZ R 220 (B) 115V Adj. AC
CAP ACITORS
C201 VCEAGA1CW226M R 22 16V Electrolytic AB
C202 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C203 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C204 VCEAGA1CW107M R 100 16V Electrolytic AB
C205 VCEAGA1CW337M R 330 16V Electrolytic AC
C206 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C207 VCEAGA1HW106M R 10 50V Electrolytic AC
C208 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C209 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C210 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C211 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C212 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C213 VCFYFA1HA154J R 0.15 50V Mylar AC
C214 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C215 VCEAGA1CW106M R 10 16V Electrolytic AA
C216 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C217 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C218 VCCCPA1HH150J R 15p 50V Ceramic AA
C219 VCCCPA1HH220J R 22p 50V Ceramic AA
C220 VCCCPA1HH101J R 100p 50V Ceramic AA
C221 VCFYHA1HA684J R 0.68 50V Mylar AD
C222 VCCCPA1HH120J R 12p 50V Ceramic AA
C223 RC-QZA104TA Y K R 0.1 50V Mylar AB
C224 VCEAGA1CW476M R 47 16V Electrolytic AB
28
Page 25
20CT-250
Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code
PWB-A: DUNTK9398WET4
MAIN UNIT (Continued)
C225 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C226 VCCCPA1HH180J R 18p 50V Ceramic AA
C227 VCCCPA1HH180J R 18p 50V Ceramic AA
C228 RC-QZA104TAYK R 0.1 50V Mylar AB
C229 RC-QZA103TAYK R 0.01 50V Mylar AA
C231 VCEAGA1HW475M R 4.7 50V Electrolytic AB
C232 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C233 VCEAGA1HW225M R 2.2 50V Electrolytic AB
C301 VCEAGA1CW477M R 470 16V Electrolytic AC
C302 RC-QZA104TAYK R 0.1 50V Mylar AB
C303 VCFYFA1HA474J R 0.47 50V Mylar AC
C304 RC-QZA103TAYK R 0.01 50V Mylar AA
C305 VCEAGA1HW104M R 0.1 50V Electrolytic AA
C306 RC-QZA473TAYK R 0.047 50V Mylar AB
C307 VCKYP A1HB331K R 330p 50V Ceramic AA
C308 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C309 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C310 VCEAGA1CW106M R 10 16V Electrolytic AA
C311 VCKYP A2HB102K R 1000p 500V Ceramic AA
C312 VCEAGA1CW477M R 470 16V Electrolytic AC
C314 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C315 VCEAGA1CW106M R 10 16V Electrolytic AA
C316 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C318 VCEAGA1HW225M R 2.2 50V Electrolytic AB
C319 VCKYD41CY103N R 0.01 16V Ceramic AA
C320 VCEAGA1CW337M R 330 16V Electrolytic AC
C321 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C322 VCEAGA1HW225M R 2.2 50V Electrolytic AB
C323 VCEAGA1HW105M R 1 50V Electrolytic AC
C327 VCEAGA1HW225M R 2.2 50V Electrolytic AB
C328 VCEAGA1CW106M R 10 16V Electrolytic AA
C329 VCEAGA1HW105M R 1 50V Electrolytic AC
C330 RC-QZA473TAYK R 0.047 50V Mylar AB
C331 VCKYD41HB102K R 1000p 50V Ceramic AA
C401 VCEAGA1CW106M R 10 16V Electrolytic AA
C402 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C403 VCEAGA1CW106M R 10 16V Electrolytic AA
C404 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C406 VCEAGA1CW108M R 1000 16V Electrolytic AD
C408 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C409 VCEAGA1CW106M R 10 16V Electrolytic AA
C410 RC-QZA104TAYK R 0.1 50V Mylar AB
C411 VCEAGA1HW475M R 4.7 50V Electrolytic AB
C412 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C413 VCEAGA1CW107M R 100 16V Electrolytic AB
C414 VCKYP A1HF103Z R 0.01 50V Ceramic AA
C415 RC-QZA104TAYK R 0.1 50V Mylar AB
C416 VCEAGA1CW226M R 22 16V Electrolytic AB
C417 VCEAGA1HW105M R 1 50V Electrolytic AC
C418 VCEAGA1CW477M R 470 16V Electrolytic AC
C419 VCCCPA1HH560J R 56p 50V Ceramic AA
C501 VCEACA1HC105M R 1 50V Electrolytic AC
C502 VCKYP A1HB471K R 470p 50V Ceramic AA
C503 RC-QZA104TAYK R 0.1 50V Mylar AB
C504 VCCSPA2HL471K R 470p 500V Ceramic AB
C505 RC-QZA104TA YK R 0.1 50V Mylar AB
C506 VCEAGA1EW108M R 1000 25V Electrolytic AD
C507 VCEAGA1VW107M R 100 35V Electrolytic AC
C509 RC-QZA104TA YK R 0.1 50V Mylar AB
C510 VCEAGA1VW477M R 470 35V Electrolytic AD
C511 VCKYPA2HB102K R 1000p 500V Ceramic AA
C512 VCFYSA1HB824J R 0.82 50V Mylar AC
C513 VCFYSA1HB824J R 0.82 50V Mylar AC
C514 VCEAGA1HW105M R 1 50V Electrolytic AC
C515 VCEACA1HC105M R 1 50V Electrolytic AC
C518 VCQYTA1HM392K R 3900p 50V Mylar AB
C519 VCQYTA1HM472K R 4700p 50V Mylar AB
C601 VCEAGA1CW476M R 47 16V Electrolytic AB
C602 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C603 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C604 VCEAGA1CW107M R 100 16V Electrolytic AB
C605 VCEAGA1CW476M R 47 16V Electrolytic AB
C606 VCEAGA1CW476M R 47 16V Electrolytic AB
C607 VCEAGA1HW105M R 1 50V Electrolytic AC
C608 RC-QZA103TA YK R 0.01 50V Mylar AA
C609 VCEAGA1HW105M R 1 50V Electrolytic AC
C610 VCFYSB2EB823J R 0.082 250V Mylar AD
C611 VCKYPA2HB102K R 1000p 500V Ceramic AA
C612 RC-KZ0037CEZZ R 390p 2kV Ceramic AB
C613 VCFPPD2DB564J R 0.56 200V Polypro Film AF
C614 VCEAGA1CW106M R 10 16V Electrolytic AA
C615 VCQPSD2DA224J R 0.22 200V Polypro Film AD
C616 VCFPPD3CA752J R 7500p 1.6kV Polypro Film AE
C617 RC-QZA104TA Y K R 0.1 50V Mylar AB
C619 VCEAGA2AW106M R 10 100V Electrolytic AC
C620 VCEAGA1HW105M R 1 50V Electrolytic AC
C622 VCEAGA1HW105M R 1 50V Electrolytic AC
C630 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C636 VCEAGA1CW476M R 47 16V Electrolytic AB
C650 VCFYFA1HA224J R 0.22 50V Mylar AB
C653 VCKYAT1EX103N R 0.01 25V Ceramic AA
C654 VCEAGA1CW476M R 47 16V Electrolytic AB
C655 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C656 VCEAGA0JW107M R 100 6.3V Electrolytic AB
å C701 RC-FZ017SCEZZ R 0.1
å C703 RC-KZ0029CEZZ R 0.01
å C704 RC-KZ0029CEZZ R 0.01
å C705 RC-KZ0029CEZZ R 0.01
å C706 RC-KZ0029CEZZ R 0.01
å C707 RC-EZ0545CEZZ R 68 400V Electrolytic AQ
å C708 RC-KZ0029CEZZ R 0.01
å C709 VCEAGA1EW107M R 100 25V Electrolytic AD
å C710 VCKYPA2HB102K R 1000p 500V Ceramic AA
å C711 RC-QZA471TAYJ R 470p 50V Mylar AB
å C712 VCFYHA1HA564J R 0.56 50V Mylar AD
å C713 VCKYPA2HB102K R 1000p 500V Ceramic AA
å C714 RC-QZA563TAYK R 0.056 50V Mylar AB
å C715 VCEAGA1HW106M R 10 50V Electrolytic AC
å C716 VCEAGA1HW105M R 1 50V Electrolytic AC
å C720 VCEAGA1JW476M R 47 63V Electrolytic AB
å C721 RC-KZ0341CEZZ R 1000p 2kV Ceramic AD
AC250V
Special AD
AC250V
Ceramic AC
AC250V
Ceramic AC
AC250V
Ceramic AC
AC250V
Ceramic AC
AC250V
Ceramic AC
29
Page 26
20CT-250
Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code
PWB-A: DUNTK9398WET4
MAIN UNIT (Continued)
å C723 VCKYPA2HB102K R 1000p 500V Ceramic AA
å C724 RC-KZ0029CEZZ R 0.01
å C725 VCFYFA1HA474J R 0.47 50V Mylar AC
å C726 VCKYPA1HB102K R 1000p 50V Ceramic AA
å C729 VCEAGA1CW477M R 470 16V Electrolytic AC
C731 RC-EZ0724CEZZ R 100 160V Electrolytic AG
C732 RC-KZ0341CEZZ R 1000p 2kV Ceramic AD
C733 VCKYPA2HB102K R 1000p 500V Ceramic AA
C734 VCEAGA1CW477M R 470 16V Electrolytic AC
å C736 RC-KZ0029CEZZ R 0.01
å C737 RC-EZ0724CEZZ R 100 160V Electrolytic AG
å C741 VCKYPA2HB472K R 4700p 500V Ceramic AB
å C742 VCFYFA1HA394J R 0.39 50V Mylar AC
å C747 RC-KZ017SCEZZ R 680p 4 kV Ceramic AD
å C750 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C801 VCEAGA1HW475M R 4.7 50V Electrolytic AB
C802 RC-QZA103TA Y K R 0.01 50V Mylar AA
C803 RC-QZA103TA Y K R 0.01 50V Mylar AA
C804 RC-QZA103TA Y K R 0.01 50V Mylar AA
C805 VCEAGA1CW107M R 100 16V Electrolytic AB
C806 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C807 VCEAGA1CW107M R 100 16V Electrolytic AB
C808 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C809 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C810 VCCCPA1HH120J R 12p 50V Ceramic AA
C811 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C812 VCEAGA1CW107M R 100 16V Electrolytic AB
C813 RC-QZA104TA Y K R 0.1 50V Mylar AB
C814 RC-QZA104TA Y K R 0.1 50V Mylar AB
C815 VCEAGA1HW105M R 1 50V Electrolytic AC
C816 RC-QZA103TA Y K R 0.01 50V Mylar AA
C817 VCEAGA1CW227M R 220 16V Electrolytic AC
C820 VCKYAT1EX103N R 0.01 25V Ceramic AA
C822 VCKYD41CY103N R 0.01 16V Ceramic AA
C901 RC-QZA104TA Y K R 0.1 50V Mylar AB
C1001 VCCCP A1HH330J R 33p 50V Ceramic AA
C1002 VCCSPA1HL330J R 33p 50V Ceramic AA
C1003 VCCCP A1HH330J R 33p 50V Ceramic AA
C1004 VCCCP A1HH330J R 33p 50V Ceramic AA
C1005 VCEAGA1HW105M R 1 50V Electrolytic AC
C1006 VCEAGA1AW107M R 100 10V Electrolytic AB
C1007 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C1008 VCEAGA1AW476M R 47 10V Electrolytic AA
C1009 VCEAGA1CW106M R 10 16V Electrolytic AA
C1010 VCEAGA1CW106M R 10 16V Electrolytic AA
C1011 VCCSPA1HL101J R 100p 50V Ceramic AA
C1012 VCKYAT1EX103N R 0.01 25V Ceramic AA
C1013 VCCSPA1HL471J R 470p 50V Ceramic AA
C1014 VCCCP A1HH560J R 56p 50V Ceramic AA
C1015 VCEAGA1CW476M R 47 16V Electrolytic AB
C1016 VCEAGA0JW107M R 100 6.3V Electrolytic AB
C1017 VCKYPA1HF103Z R 0.01 50V Ceramic AA
C1018 VCCCP A1HH680J R 68p 50V Ceramic AA
C1019 VCCCP A1HH680J R 68p 50V Ceramic AA
AC250V
Ceramic AC
AC250V
Ceramic AC
C1020 VCEAGA0JW107M R 100 6.3V Electrolytic AB
C1021 VCCSPA1HL181J R 180p 50V Ceramic AA
C1022 VCKYD41CY103N R 0.01 16V Ceramic AA
C1023 VCKYD41CY103N R 0.01 16V Ceramic AA
C1024 VCKYD41CY103N R 0.01 16V Ceramic AA
C1025 VCKYD41CY103N R 0.01 16V Ceramic AA
C1026 VCKYD41CY103N R 0.01 16V Ceramic AA
C1027 VCKYD41CY103N R 0.01 16V Ceramic AA
C1028 VCKYD41CY103N R 0.01 16V Ceramic AA
C1029 VCKYD41CY103N R 0.01 16V Ceramic AA
C1030 VCKYD41CY103N R 0.01 16V Ceramic AA
C1031 VCKYD41CY103N R 0.01 16V Ceramic AA
C1032 VCKYD41CY103N R 0.01 16V Ceramic AA
RESISTORS
R201 VRD-RA2BE680J R 68 1/8W Carbon AA
R202 VRD-RA2BE680J R 68 1/8W Carbon AA
R206 VRD-RA2BE680J R 68 1/8W Carbon AA
R207 VRD-RA2BE392J R 3.9k 1/8W Carbon AA
R209 VRD-RA2BE122J R 1.2k 1/8W Carbon AA
R210 VRD-RA2BE122J R 1.2k 1/8W Carbon AA
R212 VRD-RA2BE101J R 100 1/8W Carbon AB
R213 VRD-RA2BE102J R 1k 1/8W Carbon AA
R214 VRD-RA2BE222J R 2.2k 1/8W Carbon AA
R215 VRD-RA2BE102J R 1k 1/8W Carbon AA
R218 VRD-RA2BE273J R 27k 1/8W Carbon AA
R219 VRD-RA2BE154J R 150k 1/8W Carbon AA
R220 VRD-RA2BE184J R 180k 1/8W Carbon AA
R221 VRD-RA2BE223J R 22k 1/8W Carbon AA
R222 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R223 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R224 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R225 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R226 VRD-RA2EE120J R 12 1/4W Carbon AA
R227 VRD-RA2EE120J R 12 1/4W Carbon AA
R228 VRD-RA2BE103J R 10k 1/8W Carbon AA
R229 VRD-RA2BE103J R 10k 1/8W Carbon AA
R230 VRD-RA2BE153J R 15k 1/8W Carbon AA
R231 VRD-RA2BE473J R 47k 1/8W Carbon AA
R232 VRD-RA2BE473J R 47k 1/8W Carbon AA
R233 VRD-RA2BE473J R 47k 1/8W Carbon AA
R234 VRD-RA2BE103J R 10k 1/8W Carbon AA
R235 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R237 VRD-RA2BE392J R 3.9k 1/8W Carbon AA
R238 VRS-VV3DB153J R 15k 2W Metal Oxide AA
R242 VRD-RA2BE151J R 150 1/8W Carbon AA
R243 VRD-RA2BE473J R 47k 1/8W Carbon AA
R244 VRD-RA2BE683J R 68k 1/8W Carbon AA
R247 VRD-RA2BE222J R 2.2k 1/8W Carbon AA
R249 VRD-RA2BE102J R 1k 1/8W Carbon AA
R250 VRD-RA2BE393J R 39k 1/8W Carbon AA
R251 VRD-RA2BE560J R 56 1/8W Carbon AA
R252 VRD-RA2BE561J R 560 1/8W Carbon AA
R253 VRD-RA2BE393J R 39k 1/8W Carbon AA
R254 VRD-RA2EE395J R 3.9M 1/4W Carbon AA
R301 VRD-RA2BE102J R 1k 1/8W Carbon AA
R302 VRD-RA2BE332J R 3.3k 1/8W Carbon AA
30
Page 27
20CT-250
Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code
PWB-A: DUNTK9398WET4
MAIN UNIT (Continued)
R303 VRD-RA2BE392J R 3.9k 1/8W Carbon AA
R304 VRD-RA2BE392J R 3.9k 1/8W Carbon AA
R305 VRD-RA2BE473J R 47k 1/8W Carbon AA
R306 VRD-RA2BE100J R 10 1/8W Carbon AA
R308 VRD-RA2BE153J R 15k 1/8W Carbon AA
R309 VRD-RA2BE123J R 12k 1/8W Carbon AA
R310 VRD-RA2BE104J R 100k 1/8W Carbon AA
R313 VRD-RA2BE273J R 27k 1/8W Carbon AA
R314 VRD-RA2BE332J R 3.3k 1/8W Carbon AA
R315 VRD-RA2BE563J R 56k 1/8W Carbon AA
R316 VRD-RA2BE123J R 12k 1/8W Carbon AA
R317 VRD-RA2BE123J R 12k 1/8W Carbon AA
R318 VRD-RA2BE681J R 680 1/8W Carbon AA
R319 VRD-RA2BE393J R 39k 1/8W Carbon AA
R320 VRD-RA2BE223J R 22k 1/8W Carbon AA
R321 VRD-RA2BE473J R 47k 1/8W Carbon AA
R322 VRN-VV3DB2R2J R 2.2 2W Metal Film AB
R324 VRD-RA2BE102J R 1k 1/8W Carbon AA
R328 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R401 VRD-RA2EE750J R 75 1/4W Carbon AA
R402 VRD-RA2BE103J R 10k 1/8W Carbon AA
R406 VRD-RA2BE102J R 1k 1/8W Carbon AA
R408 VRD-RA2BE222J R 2.2k 1/8W Carbon AA
R409 VRD-RA2BE824J R 820k 1/8W Carbon AA
R415 VRD-RA2BE101J R 100 1/8W Carbon AB
R416 VRD-RM2HD470J R 47 1/2W Carbon AA
R417 VRD-RA2EE750J R 75 1/4W Carbon AA
R418 VRD-RA2BE223J R 22k 1/8W Carbon AA
R419 VRD-RA2BE223J R 22k 1/8W Carbon AA
R420 VRD-RA2BE103J R 10k 1/8W Carbon AA
R421 VRD-RM2HD470J R 47 1/2W Carbon AA
R422 VRD-RA2BE222J R 2.2k 1/8W Carbon AA
R504 VRD-RA2BE221J R 220 1/8W Carbon AA
R506 VRD-RA2BE102J R 1k 1/8W Carbon AA
R510 VRD-RM2HD1R5J R 1.5 1/2W Carbon AA
R511 VRD-RA2BE333J R 33k 1/8W Carbon AA
R513 VRD-RA2BE273J R 27k 1/8W Carbon AA
R514 VRD-RA2BE563J R 56k 1/8W Carbon AA
R515 VRD-RA2EE220J R 22 1/4W Carbon AA
R516 VRD-RM2HD331J R 330 1/2W Carbon AA
R517 VRD-RA2BE223J R 22k 1/8W Carbon AA
R518 VRD-RA2BE102J R 1k 1/8W Carbon AA
R519 VRD-RM2HD152J R 1.5k 1/2W Carbon AA
R601 VRD-RA2BE224J R 220k 1/8W Carbon AA
R602 VRD-RA2BE103J R 10k 1/8W Carbon AA
R604 VRD-RA2BE391J R 390 1/8W Carbon AA
R605 VRD-RA2BE102J R 1k 1/8W Carbon AA
R606 VRD-RA2BE681J R 680 1/8W Carbon AA
R607 VRD-RA2BE103J R 10k 1/8W Carbon AA
R608 VRD-RM2HD472J R 4.7k 1/2W Carbon AA
R609 VRS-SV3LB332J R 3.3k 3W Metal Oxide AB
R610 VRD-RA2BE822J R 8.2k 1/8W Carbon AA
R611 VRW-KQ3NC4R7K R 4.7 7W Cement AE
R612 VRG-PD2HD820J R 82 1/2W Fuse Resistor AC
R613 VRD-RA2BE103J R 10k 1/8W Carbon AA
R614 VRD-RM2HD180J R 18 1/2W Carbon AA
R617 VRS-VV3AB330J R 33 1W Metal Oxide AA
R618 VRD-RM2HD102J R 1k 1/2W Carbon AA
R619 VRD-RA2BE393J R 39k 1/8W Carbon AA
å R620 RR-XZ0085CEZZ R 3.9 1/4W Fuse Resistor AC
R621 VRN-RV3AB1R5J R 1.5 1W Metal Film AA
R622 VRD-RM2HD223J R 22k 1/2W Carbon AA
R623 VRD-RA2EE683G R 68k 1/4W Carbon AB
R624 VRD-RA2BE123G R 12k 1/8W Carbon AA
R625 VRD-RA2BE103J R 10k 1/8W Carbon AA
R630 VRD-RA2BE123J R 12k 1/8W Carbon AA
R631 VRD-RA2BE102J R 1k 1/8W Carbon AA
R633 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R634 VRD-RM2HD101J R 100 1/2W Carbon AA
R635 VRD-RA2BE154J R 150k 1/8W Carbon AA
R640 VRD-RM2HD682J R 6.8k 1/2W Carbon AA
R642 VRD-RA2BE103J R 10k 1/8W Carbon AA
R646 VRD-RM2HD5R6J R 5.6 1/2W Carbon AA
R647 VRD-RM2HD5R6J R 5.6 1/2W Carbon AA
R648 VRD-RM2HD5R6J R 5.6 1/2W Carbon AA
R651 VRD-RM2HD101J R 100 1/2W Carbon AA
R653 VRD-RA2BE822J R 8.2k 1/8W Carbon AA
R654 VRD-RM2HD560J R 56 1/2W Carbon AA
R655 VRD-RM2HD180J R 18 1/2W Carbon AA
R656 VRD-RM2HD5R6J R 5.6 1/2W Carbon AA
R657 VRD-RA2BE103J R 10k 1/8W Carbon AA
R658 VRD-RM2HD470J R 47 1/2W Carbon AA
R660 VRD-RA2BE681J R 680 1/8W Carbon AA
å R702 VRW-KQ3NC3R9K R 3.9 7W Cement AE
å R703 VRS-KT3LB273J R 27k 3W Metal Oxide AD
å R704 VRS-SV3DB100J R 10 2W Metal Oxide AA
å R705 VRN-VV3AB2R2J R 2.2 1W Metal Film AA
å R706 VRD-RA2BE124J R 120k 1/8W Carbon AA
å R707 VRD-RA2BE270J R 27 1/8W Carbon AA
å R710 VRD-RA2BE392J R 3.9k 1/8W Carbon AA
å R712 VRD-RA2BE821J R 820 1/8W Carbon AA
å R715 VRD-RA2BE153J R 15k 1/8W Carbon AA
å R716 VRD-RA2BE180J R 18 1/8W Carbon AA
å R717 VRD-RA2BE101J R 100 1/8W Carbon AB
å R718 VRN-VV3ABR22J R 0.22 1W Metal Film AA
å R719 VRC-UA2HG825K R 8.2M 1/2W Solid AA
å R720 VRC-UA2HG825K R 8.2M 1/2W Solid AA
å R721 VRD-RM2HD1R0J R 1 1/2W Carbon AA
å R723 VRS-VV3LB272J R 2.7k 3W Metal Oxide AB
å R724 VRD-RA2BE102J R 1k 1/8W Carbon AA
å R735 VRD-RM2HD184J R 180k 1/2W Carbon AA
å R736 VRD-RM2HD184J R 180k 1/2W Carbon AA
R802 VRD-RA2BE561J R 560 1/8W Carbon AA
R803 VRD-RA2BE561J R 560 1/8W Carbon AA
R804 VRD-RA2BE561J R 560 1/8W Carbon AA
R805 VRD-RA2BE222J R 2.2k 1/8W Carbon AA
R809 VRD-RA2BE102J R 1k 1/8W Carbon AA
R810 VRD-RA2BE102J R 1k 1/8W Carbon AA
R811 VRD-RA2BE102J R 1k 1/8W Carbon AA
R812 VRD-RA2BE101J R 100 1/8W Carbon AB
R813 VRD-RA2BE101J R 100 1/8W Carbon AB
31
Page 28
20CT-250
Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code
PWB-A: DUNTK9398WET4
MAIN UNIT (Continued)
R814 VRD-RA2BE273J R 27k 1/8W Carbon AA
R815 VRD-RA2BE223J R 22k 1/8W Carbon AA
R816 VRD-RA2BE473J R 47k 1/8W Carbon AA
R817 VRD-RA2BE473J R 47k 1/8W Carbon AA
R819 VRD-RA2BE102J R 1k 1/8W Carbon AA
R820 VRD-RA2BE101J R 100 1/8W Carbon AB
R821 VRD-RA2BE101J R 100 1/8W Carbon AB
R822 VRD-RA2BE101J R 100 1/8W Carbon AB
R823 VRD-RA2BE102J R 1k 1/8W Carbon AA
R824 VRD-RA2BE102J R 1k 1/8W Carbon AA
R825 VRD-RA2BE102J R 1k 1/8W Carbon AA
R826 VRD-RA2BE223J R 22k 1/8W Carbon AA
R1001 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R1002 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R1003 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R1004 VRD-RA2BE473J R 47k 1/8W Carbon AA
R1005 VRD-RA2BE562J R 5.6k 1/8W Carbon AA
R1006 VRD-RA2BE101J R 100 1/8W Carbon AB
R1009 VRD-RA2BE101J R 100 1/8W Carbon AB
R1010 VRD-RA2BE683J R 68k 1/8W Carbon AA
R1011 VRD-RA2BE683J R 68k 1/8W Carbon AA
R1012 VRD-RA2BE102J R 1k 1/8W Carbon AA
R1014 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R1015 VRD-RA2BE332J R 3.3k 1/8W Carbon AA
R1016 VRD-RA2BE101J R 100 1/8W Carbon AB
R1017 VRD-RA2BE683J R 68k 1/8W Carbon AA
R1018 VRD-RA2BE101J R 100 1/8W Carbon AB
R1019 VRD-RA2BE101J R 100 1/8W Carbon AB
R1021 VRD-RA2BE102J R 1k 1/8W Carbon AA
R1022 VRD-RA2BE102J R 1k 1/8W Carbon AA
R1023 VRD-RA2BE102J R 1k 1/8W Carbon AA
R1024 VRD-RA2BE683J R 68k 1/8W Carbon AA
R1026 VRD-RA2BE102J R 1k 1/8W Carbon AA
R1027 VRD-RA2BE562J R 5.6k 1/8W Carbon AA
R1028 VRD-RA2BE332J R 3.3k 1/8W Carbon AA
R1030 VRD-RA2BE101J R 100 1/8W Carbon AB
R1031 VRD-RA2BE333J R 33k 1/8W Carbon AA
R1032 VRD-RA2BE683J R 68k 1/8W Carbon AA
R1034 VRD-RA2BE562J R 5.6k 1/8W Carbon AA
R1035 VRD-RA2BE562J R 5.6k 1/8W Carbon AA
R1036 VRD-RA2BE182J R 1.8k 1/8W Carbon AA
R1037 VRD-RA2BE103J R 10k 1/8W Carbon AA
R1038 VRD-RA2BE333J R 33k 1/8W Carbon AA
R1039 VRD-RA2BE271J R 270 1/8W Carbon AA
R1040 VRD-RA2BE271J R 270 1/8W Carbon AA
R1041 VRD-RA2BE103J R 10k 1/8W Carbon AA
R1042 VRD-RA2BE562J R 5.6k 1/8W Carbon AA
R1043 VRD-RA2BE103J R 10k 1/8W Carbon AA
R1044 VRD-RA2BE562J R 5.6k 1/8W Carbon AA
R1045 VRD-RM2HD180J R 18 1/2W Carbon AA
R1046 VRD-RM2HD180J R 18 1/2W Carbon AA
R1047 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R1049 VRD-RA2BE473J R 47k 1/8W Carbon AA
R1050 VRD-RA2BE473J R 47k 1/8W Carbon AA
R1051 VRD-RA2BE393J R 39k 1/8W Carbon AA
R1052 VRD-RA2BE272J R 2.7k 1/8W Carbon AA
R1055 VRD-RM2HD101J R 100 1/2W Carbon AA
R1057 VRD-RA2BE273J R 27k 1/8W Carbon AA
R1058 VRD-RA2BE822J R 8.2k 1/8W Carbon AA
R1059 VRD-RA2BE472J R 4.7k 1/8W Carbon AA
R1060 VRD-RA2BE222J R 2.2k 1/8W Carbon AA
R1061 VRD-RA2BE103J R 10k 1/8W Carbon AA
R1062 VRD-RM2HD180J R 18 1/2W Carbon AA
R1063 VRD-RA2BE103J R 10k 1/8W Carbon AA
R1064 VRD-RA2BE102J R 1k 1/8W Carbon AA
R1065 VRD-RA2BE102J R 1k 1/8W Carbon AA
R1067 VRD-RA2BE562J R 5.6k 1/8W Carbon AA
R1068 VRD-RA2BE683J R 68k 1/8W Carbon AA
R1070 VRD-RA2BE562J R 5.6k 1/8W Carbon AA
R1072 VRD-RA2BE153J R 15k 1/8W Carbon AA
R1075 VRD-RA2BE102J R 1k 1/8W Carbon AA
R1076 VRD-RA2BE102J R 1k 1/8W Carbon AA
SWITCHES
å S701 QSW-P0588CEZZ R Main Power AP
S1001 QSW-K0079GEZZ R CH-Up AB
S1002 QSW-K0079GEZZ R CH-Down AB
S1003 QSW-K0079GEZZ R VOL-Up AB
S1004 QSW-K0079GEZZ R VOL-Down AB
S1005 QSW-K0079GEZZ R Pre-Set AB
S1006 QSW-B0015CEZZ R Set-Up AC
MISCELLANEOUS P ARTS
å F301 QFS-J1521CEZZ R IC Protector AF
å F701 QFS-C3229CEZZ R Fuse T3.15A AD
FB305 RBLN-0037CEZZ R Ferrite Bead AB
FB602 RBLN-0037CEZZ R Ferrite Bead AB
å FB702 RBLN-0037CEZZ R Ferrite Bead AB
å FB706 RBLN-0037CEZZ R Ferrite Bead AB
FB731 RBLN-0080CEZZ R Ferrite Bead AD
FH701 QFSHD1013CEZZ R Fuse Holder AC
FH702 QFSHD1014CEZZ R Fuse Holder AC
J401 QTANJ0429CEZZ R AV Terminal AH
P201 QPLGN0241CEZZ R Plug, 2-pin (TP210) AA
P302 QPLGN0441CEZZ R Plug, 4-pin (S) AB
P502 QPLGN0603CEZZ R Plug, 6-pin (F) AB
P602 QPLGN0441CEZZ R Plug, 4-pin (H) AB
å P711 QPLGN0207CEZZ R Plug, 2-pin (G) AA
å P712 QPLGN0269GEZZ R Plug, 2-pin (A) AB
P801 QPLGN0541CEZZ R Plug, 5-pin (K) AB
P1001 QPLGN0441CEZZ R Plug, 4-pin (BC) AB
RMC1001 RRMCU0222CEZZ R R/C Receiver AL
SLD1001 PSLDM0233PEFW R Shield AC
SLD201 PSLDM0232PEFW R Shield AD
RDA351 PRDAR0142PEFW R Heat Sink, IC351 AD
PRDAR0222PEFW R Heat Sink, Q701 AH
PRDAR0223PEFW R Heat Sink, IC501 AF
PRDAR0224PEFW R Heat Sink, Q602 AF
LHLDP1042PE00 R Holder AG
LX-BZ3100CEFD R Screw AA
LX-TZ3004CEFD R Screw AA
32
Page 29
20CT-250
Ref. No. Part No. ★ Description Code Ref. No. Part No. ★ Description Code
PWB-B: DUNTK9399WET4
CRT UNIT
TRANSISTORS
Q851 VS2SC3789//1E R 2SC3789 AE
Q852 VS2SC3789//1E R 2SC3789 AE
Q853 VS2SC3789//1E R 2SC3789 AE
Q854 VS2SA1015Y/1E R 2SA1015Y AC
DIODES
D851 RH-DX0475CEZZ R Diode AB
D852 RH-DX0475CEZZ R Diode AB
D853 RH-DX0475CEZZ R Diode AB
COIL
L851 VP-CF681K0000 R Peaking 680µH AB
CAPACIT ORS
C851 VCKYP A1HB391K R 390p 50V Ceramic AA
C852 VCKYP A1HB391K R 390p 50V Ceramic AA
C853 VCKYP A1HB391K R 390p 50V Ceramic AA
å C854 RC-KZ0150CEZZ R 1000p 3kV Ceramic AB
C861 VCEAGA1CW106M R 10 16V Electrolytic AA
C865 VCKYP A1HB102K R 1000p 50V Ceramic AA
C866 VCEAGA2EW106M R 10 250V Electrolytic AC
C870 VCEAGA1CW106M R 10 16V Electrolytic AA
MISCELLANEOUS P ARTS
å ACC701 QACCZ3008PEZZ J AC Cord AN
SP1 RSP-Z0003KJZZ Speaker
SP2 RSP-Z0003KJZZ Speaker
SUPPLIED ACCESSORIES
ACCESSORIES
RRMCG0018KJSA R Infrared R/C Unit BG
TiNS-0093KJZZ Opertion Manual
ACCESSORIES (NOT REPLACMENT ITEM)
TMAPC0067KJZZ – Service Map —
P ACKING P ARTS
(NOT REPLACEMENT ITEM)
SPAKC0081KJZZ - Packing Case —
SPAKP0697CEZZ - Dust Proof Cover —
SPAKX0047KJZZ - Buffer Material, Top —
SPAKX0048KJZZ - Buffer Material, Bottom —
SSAKA0230CEZZ - Polyethylene Sack —
RESISTORS
R851 VRD-RA2BE471J R 470 1/8W Carbon AA
R852 VRD-RA2BE561J R 560 1/8W Carbon AA
R856 VRD-RA2BE471J R 470 1/8W Carbon AA
R858 VRD-RA2BE561J R 560 1/8W Carbon AA
R859 VRD-RA2BE152J R 1.5k 1/8W Carbon AA
R860 VRS-VV3DB123J R 12k 2W Metal Oxide AA
R862 VRD-RA2BE471J R 470 1/8W Carbon AA
R864 VRD-RA2BE561J R 560 1/8W Carbon AA
R865 VRD-RA2BE471J R 470 1/8W Carbon AA
R866 VRS-VV3DB123J R 12k 2W Metal Oxide AA
R867 VRD-RM2HD272J R 2.7k 1/2W Carbon AA
R868 VRS-VV3DB123J R 12k 2W Metal Oxide AA
R870 VRD-RA2BE222J R 2.2k 1/8W Carbon AA
R871 VRD-RA2BE152J R 1.5k 1/8W Carbon AA
R875 VRD-RA2BE560J R 56 1/8W Carbon AA
R876 VRD-RA2BE560J R 56 1/8W Carbon AA
R877 VRD-RA2BE560J R 56 1/8W Carbon AA
R898 VRD-RM2HD272J R 2.7k 1/2W Carbon AA
R899 VRD-RM2HD272J R 2.7k 1/2W Carbon AA
MISCELLANEOUS P ARTS
P851 QPLGN0441CEZZ R Plug, 4-pin (H) AB
P852 QPLGN0541CEZZ R Plug, 5-pin (K) AB
å SC851 QSOCV0840CEZZ R CRT Socket AK
CABINET P ARTS
1 CCABA0046KJSA Front Cabinet Ass'y
1-1
1-2 HBDGB0001KJSA Badge, "SHARP"
1-3 HDECQ0016KJSA Cover for LED
1-4 HDECQ0015KJSA Cover for R/C
1-5 HPNC-0012KJSA Punching Metal (L)
1-6 HPNC-0013KJSA Punching Metal (R)
1-7 HDECQ0022KJSA Speaker Decoration
1-8 JBTN-0024KJSA Button, Power
1-9 MSPRC0005KJFW Spring, Power Button
1-10 JBTN-0025KJSA Button, CH-up/down,
2 GCABB0030KJKA Rear Cabinet
Not Available –
1-5
1-1
1-7
Front Cabinet —
Vol-up/down
2
1-6
33
1-9
1-8
1-3 1-10 1-2 1-4
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