Sharp 14U10 User manual

SHARP CORPORATION
SERVICE MANUAL
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.
FEATURE
ËFull Auto Channel Preset and Auto Channel Skip
Ë100-CH Program Memory
ËCATV (Hyper Band) Ready <Used Frequency Synthesizer
Tuner>
ËAVL (Sound Keeper) Function
ËBlack Stretch Circuit
ËOn Timer/Sleep Timer/Reminder Timer
ËBlue Back Noise Mute
ËRear AV-In/Out Terminals
ËFront AV-In & Front Headphone Jack (14U20/25 Only)
ËColour Comb Filter (NTSC Only)
ËHigh Contrast Picture
ËHotel Mode
ËLow STANDBY Power Consumption
ËEnglish OSD
WARNING
Thechassisinthisreceiverispartiallyhot. Useanisolationtransformerbetweenthelinecordplugandpower
receptacle,whenservicingthischassis. Topreventelectricshock,donotremovecover. Nouser–serviceable
parts inside. Refer servicing to qualified service personnel.
Page Page
CONTENTS
COLOUR TELEVISION
Chassis No. UA-1
S60C614U10///
14U10/15
14U20/25
MODELS
(14U10) (14U15)
(14U20) (14U25)
14U10/15
14U20/25
SERVICE MANUAL COLOUR TELEVISION MODELS 14U10/15/14U20/25
»SPECIFICATIONS ...........................................2
»IMPORTANT SERVICE NOTES ..................... 2
»ADJUSTMENT PRECAUTIONS ..................... 3
»SERVICE MODE .............................................3
»TROUBLE SHOOTING TABLE ..................... 19
»SOLID STATE DEVICE BASE DIAGRAM ..... 21
»CHASSIS LAYOUT ........................................22
»BLOCK DIAGRAM .........................................24
»WAVEFORMS................................................29
»SCHEMATIC DIAGRAM
» DESCRIPTION OF SCHEMATIC DIAGRAM.. 30
■14U10, 14U15, 14U20, 14U25
HOTEL MODE APPLICATION ................. 31
■HEADPHONE UNIT AND
CRT SOCKET UNIT ................................ 32
■MAIN Unit .................................................34
»PRINTED WIRING BOARD ASSEMBLIES... 38
»REPLACEMENT PARTS LIST
■ELECTRICAL PARTS .............................. 43
■MISCELLANEOUS PARTS...................... 47
■SUPPLIED ACCESSORIES .................... 48
■PACKING PARTS..................................... 48
■CABINET PARTS..................................... 48

14U10/15
14U20/25
2
2-1 2-2
IMPORTANT SERVICE NOTES
Maintenance and repair of this receiver should be done by qualified
service personnel only.
SERVICE OF HIGH VOLTAGE SYSTEM AND PIC-
TURE 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
the high voltage completely.
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 followin
precautions should be observed:
1. When repairing the circuit, be sure not to increase the high voltage to more than 25.8kV
(at beam 0 µA) for the set.
2. To keep the set in a normal opeartion, be sure to make it function on 22.8kV ±1.5kV (at
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.
3. Do not substitute a picture tube with unauthorizerd types and/or brands which may
cause excess 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-metallic control knobs, insulating fishpapers,
cabinet backs, adjustment and compartment covers or shields, isolation resistor- ca-
pacity networks, mechanical insulators etc.
SPECIFICATIONS
Convergence................................................................. Self Convergence System
Focus ............................................................ Electrostatic Focus High Bi-Potential
Sweep Deflection ..................................................................................... Magnetic
Intermediate Frequencies
Picture IF Carrier.................................................................................. 38.9MHz
Sound IF Carrier Frequency
5.5MHz...............................................................................................33.4MHz
Colour Sub-Carrier Frequency ........................................................... 34.47MHz
Power Input..................................................................... 100 ~ 240V AC 50/60 Hz
Power Consumption ........................................................................................ 70W
Audio Power Output Rating .............................................................. 5.0W(at Max.)
Speaker
Size ....................................................................................10 cm Round (2pcs.)
Voice Coil Impedance............................................................16 ohms at 400 Hz
Aerial Input Impedance
VHF/UHF...........................................................................75 ohms Unbalanced
Tuner Ranges
VHF-Channels............................................... 1(44.25MHz) thru 11(224.25MHz)
UHF-Channels .......................................... 21(471.25MHz) thru 69(855.25MHz)
Dimensions ...................................................................................Width: 509.0mm
Height: 335.0mm
Depth: 369.0mm
Weight(approx): 12.9 kg
Cabinet material.................................................................................... All Plastics
Specifications are subject to change without prior notice.

14U10/15
14U20/25
3
3-1 3-2
ADJUSTMENT PRECAUTIONS
This model's setting are adjusted in two different ways: through the I
2
C bus control and in the conventional
analog manner. The adjustments via the I
2
C bus control include preset-only items and variable data.
1. Setting the service mode by the microprocessor.
1. Short JA 122 & JA 124 for 1 second and release to switch to the service mode position, and the
microprocessor is in input mode. (Adjustment through the I
2
C bus control). (Use JWS Key to set as
well).
2. Press the CH DOWN / UP key on the remote controller to get ready to select the mode one by one.
3. Press the CH DOWN / UP key on the remote controller to select the modes reversibly one by one.
4. Using the VOLUME UP/ DOWN key on the remote controller, the data can be modified.
5. Short JA 122 & JA 124 for 1 second and release to switch to the normal mode (OFF) position, and the
microprocessor is in out of the service mode.
2. Factory Presetting.
1. Short JA 122 & JA 124 for 1 second and release to switch to the service mode position and turn on the
main power switch.Initial values are automatically preset, only when a new EEPROM is used (Judge
with the first 4 bytes ).
2. The initial data are preset as listed in page 5, & 6.
3. Make sure the data need modify or not (Initial data).
Note: Once the chassis has been assembly together and ready to be POWER ON for the FIRST TIME,
make sure to short JA122 & JA124 to switch to the service mode position first and then turn on the
main power switch (See 2-1above).
Precaution: If haven't done this initiation, it may possibly generate excessive Beam current.
3. For reference please check with memory map
(UA1 Series type RH-iX3368CE Attachment)
SERVICE MODE
(1) In the Service Mode, Key is used to select the mode in the following order.
AGC &
GEOMETRIC
MODE
↓
AGCTAKE OVER POINT (AGC)
↓
VERTICAL SLOPE (V-LIN)
↓
VERTICAL AMP (V-AMP)
↓
VERTICAL SHIFT (V-CENT)
↓
HORIZONTAL SHIFT (H-CENT)
↓
S-CORRECTION (S-COR)
WHITE POINT
ADJ.
MODE
↓
W.P. RED STD.W.T. (DRI-RS)
↓
W.P. GREEN STD.W.T.(DRI-GS)
↓
W.P. BLUE STD.W.P. (DRI-BS)
↓
W.P. RED COOL W.P.(DRI-RC)
↓
W.P. GREEN COOL W.P.(DRI-GC)
↓
W.P. BLUE COOL W.P. (DRI-BC)
↓
W.P. RED WARM W.P.(DRI-RW)
↓
W.P. GREEN WARM W.P.(DRI-GW)
↓
W.P. BLUE WARM W.P.(DRI-BW)
SUB
ADJ.
MODE
↓
MAX VOLUME (SUB-VOL)
↓
SUB CONTRAST (SUB-CON)
↓
SUB COLOUR (SUB-COL)
↓
SUB BRIGHTNESS (SUB-BRI)
↓
SUB TINT (SUB-TINT)
↓
SUB SHARPNESS (SUB-SHP)
↓
MAX HOTEL VOLUME (HTL-VOL)
↓
HOTEL PROGRAM NO(HTL-PRG)
↓
OSD GRB REFERENCE (RGB)
↓
BLACK LEVEL OFFSET R(CUT-R)
↓
BLACK LEVEL OFFSET G(CUT-G)
↓
CATHODE DRIVE LEVEL(CDL)
FORWARD : CH DOWN KEY
REVERSE : CH UP KEY
* ( ) means OSD display.
FORWARD : CH DOWN KEY
REVERSE : CH UP KEY
AGC &
GEOMETRIC
MODE
WHITE POINT
ADJ.
MODE
SUB
ADJ.
MODE
Y-DELAY
ADJ.
MODE
MISC.
OPTION
MODE
IC
OPTION
MODE
OFFSET
ADJ.
MODE

14U10/15
14U20/25
4
4-1 4-2
Y-DELAY
ADJ.
MODE
↓
Y-D TIME FOR PAL (TV) (DL-PT)
↓
Y-D TIME FOR SECAM (TV) (DL-ST)
↓
Y-D TIME FOR N358 (TV) (DL-3T)
↓
Y-D TIME FOR N443 (TV) (DL-4T)
↓
Y-D TIME FOR B/W (TV) (DL-TV)
↓
Y-D TIME FOR PAL (AV) (DL-PA)
↓
Y-D TIME FOR SECAM (AV) (DL-SA)
↓
Y-D TIME FOR N358 (AV) (DL-3A)
↓
Y-D TIME FOR N443(AV) (DL-4A)
↓
Y-D TIME FOR B/W (AV) (DL-AV)
*(Y-D :Y-DELAY)
OFFSET
ADJ.
MODE
↓
COLOUR OFFSET (PAL) (COL-OP)
↓
COLOUR OFFSET (SECAM) (COL-OS)
↓
COLOUR OFFSET (NTSC358) (COL-O3)
↓
COLOUR OFFSET (NTSC443) (COL-O4)
↓
SHARPNESS OFFSET (PAL) (SHP-OP)
↓
SHARPNESS OFFSET (SECAM) (SHP-OS)
↓
SHARPNESS OFFSET (NTSC358) (SHP-O3)
↓
SHARPNESS OFFSET (NTSC443) (SHP-O4)
IC
OPTION
MODE
↓
VERTICAL SCAN DISABLE(VSD)
↓
BLACK STRETCH (BKS)
↓
AUTO VOLUME LEVELING(AVL)
↓
FAST FILTER IF-PLL(FFI)
↓
ENABLE VERTICAL GUARD (EVG)
↓
EHT TRACKING MODE (EHT)
↓
OVERSCAN SWITCH OFF(OSO)
↓
AUTO COLOUR LIMIT(ACL)
↓
FORCED COLOUR LIMIT(FCO)
MISC.
OPTION
MODE
↓
SOUND SYSTEM M (S-M)
↓
SOUND SYSTEM DK (S-DK)
↓
SOUND SYSTEM I (S-I)
↓
SOUND SYSTEM BG (S-BG)
↓
PLAYBACK SECAM (P-SECAM)
↓
FE (RF) NTSC 3.58 (F-N358)
↓
FE (RF) NTSC 4.43 (F-N443)
↓
FE (RF) SECAM (F-SECAM)
↓
VIDEO MUTE AT IDENT LOSS (VMI)
↓
VIDEO MUTE AT PROGRAM
/SOURCE CHANGE (VMC)
↓
HOTEL MODE (HTL)
↓
REDUCED FM DEMODULATION
GAIN FOR BTSC SIGNAL (BTSC)
↓
A
A
↓
NUMBER OF EXT AV SOURCE (AV)
↓
FM WINDOW SELECTION (FMWS)
↓
SOUND MUTE BIT 0 (SM0)
↓
SOUND MUTE BIT 1 (SM1)
↓
THAI LANGUAGE (THA)
↓
ARABIC LANGUAGE (ARA)
↓
MALAY LANGUAGE (MAL)
↓
CHINESE LANGUAGE (CHI)
↓
FRENCH LANGUAGE (FRE)
↓
RUSSIAN LANGUAGE (RUS)
↓
FORCED V-SYNC SLICING LEVEL(FSL)
↓
SYNC OF OSD (HP2)
↓
TUNER SELECTION (CPT)
↓
B
B
↓
BILINGUAL(BIL)
↓
IF AGC SPEED BIT 0 (AGC0)
↓
IF AGC SPEED BIT 1 (AGC1)
↓
FOATime Constant-RF (FOA-FE)
↓
FOB Time Constant-RF (FOB-FE)
↓
FOATime Constant-AV (FOA-AV)
↓
FOB Time Constant-AV (FOB-AV)
USER DATA IN SERVICE MODE
The flow of Mode lists as following,
* Direct Key-in Step1 Mode
RC COMMAND SERVICE-ITEM
FUNCTION AGC
CONTRAST DOWN V-LIN
COLOUR DOWN V-AMP
BRIGHTNESS DOWN V-CENT
TINT DOWN H-CENT
SHARPNESS DOWN EW / /
SYSTEM HB
BLUEBACK S-COR
TIMER SUB-VOL
CONTRAST UP SUB-CON
COLOUR UP SUB-COL
BRIGHTNESS UP SUB-BRI
TINT UP TINT SUB TINT
SHARPNESS UP SUB-SHP
CHANNEL 1 DRI-GS
CHANNEL 4 DRI-BS
CHANNEL 7 CUT-R
CHANNEL FLASH BACK CUT-G

14U10/15
14U20/25
5
5-1 5-2
EEPROM ITEMS OSD DATA LENGTH
INITIAL DATA
FIX/ADJ REMARK
AGC TAKE OVER POINT AGC 0~63 14 ADJ
VERTICAL SLOPE V-LIN 0~63 32 ADJ
VERTICAL AMPLITUDE V-AMP 0~63 32 ADJ
VERTICAL SHIFT V-CENT 0~63 32 ADJ
HORIZONTAL SHIFT H-CENT 0~63 32 ADJ
S-CORRECTION S-COR 0~63 0 FIX
WHITE POINT RED STD WHITE TEMP DRI-RS 0~63 32 FIX
WHITE POINT GREEN STD WHITE TEMP DRI-GS 0~63 32 ADJ
WHITE POINT BLUE STD WHITE TEMP DRI-BS 0~63 32 ADJ
WHITE POINT RED COOL WHITE TEMP DRI-RC 0~63 25 FIX
WHITE POINT GREEN COOL WHITE TEMP DRI-GC 0~63 32 FIX (DRI-GS)-7 DATA
WHITE POINT BLUE COOL WHITE TEMP DRI-BC 0~63 32 FIX
SAME AS(DRI-BS)
WHITE POINT RED WARM WHITE TEMP DRI-RW 0~63 32 FIX
WHITE POINT GREEN WARM WHITE TEMP DRI-GW 0~63 32 FIX (DRI-GS)-7 DATA
WHITE POINT BLUE WARM WHITE TEMP DRI-BW 0~63 32 FIX (DRI-BS)-7 DATA
MAX VOLUME SUB-VOL 0~63 63 FIX
SUB CONTRAST SUB-CON 0~63 63 FIX
SUB COLOUR SUB-COL 0~63 32 ADJ
SUB BRIGHTNESS SUB-BRI 0~63 32 ADJ
SUB TINT SUB-TINT 0~63 32 ADJ
SUB SHARPNESS SUB-SHP 0~63 32 ADJ
MAX HOTEL VOLUME HTL-VOL 0~63 32 ADJ
HOTEL PROGRAM NUMBER HTL-PRG
0~99 OR>99FOR NONE
255 FIX
OSD GRB REFERENCE RGB 0~15 15 FIX
BLACK LEVEL OFF-SET R CUT-R 0~15 8 FIX
BLACK LEVEL OFF-SET G CUT-G 0~15 8 FIX
CATHODE DRIVE LEVEL CDL 0~15 0 FIX
Y-DELAY TIME FOR PAL(TV) [YD] DL-PT 0~15 12 FIX
Y-DELAY TIME FOR SECAM(TV) [YD] DL-ST 0~15 15 FIX
Y-DELAY TIME FOR N358 (TV) [YD] DL-3T 0~15 12 FIX
Y-DELAY TIME FOR N443 (TV) [YD] DL-4T 0~15 12 FIX
Y-DELAY TIME FOR B/W (TV) [YD] DL-TV 0~15 12 FIX
Y-DELAY TIME FOR PAL (AV) [YD] DL-PA 0~15 12 FIX
Y-DELAY TIME FOR SECAM (AV) [YD] DL-SA 0~15 15 FIX
Y-DELAY TIME FOR N358 (AV) [YD] DL-3A 0~15 12 FIX
Y-DELAY TIME FOR N443 (AV) [YD] DL-4A 0~15 12 FIX
Y-DELAY TIME FOR B/W (AV) [YD] DL-AV 0~15 12 FIX
COLOUR OFFSET (PAL) COL-OP 0~15 8 FIX
COLOUR OFFSET (SECAM) COL-OS 0~15 8 FIX
COLOUR OFFSET (NTSC358) COL-03 0~15 4 FIX
COLOUR OFFSET (NTSC443) COL-O4 0~15 4 FIX
SHARPNESS OFFSET (PAL) SHP-OP 0~15 8 FIX
SHARPNESS OFFSET (SECAM) SHP-OS 0~15 4 FIX
SHARPNESS OFFSET (NTSC358) SHP-O3 0~15 12 FIX
SHARPNESS OFFSET (NTSC443) SHP-O4 0~15 8 FIX
AFTER SHORT JA 122 & JA 124, AND TURN ON THE MAIN POWER SWITCH, READ DATA FROM EEPROM
ADDRESS 00H ~ 03H, AND COMPARETOTHE LIST BELOW, IF DIFFERENT, INITIALIZE THE EEPROM.
Address : Data Address : Data
00H : 55H 02H : 43H
01H : 4FH 03H : A1H
EEPROM ITEMS OSD DATA LENGTH
INITIAL DATA
FIX/ADJ REMARK
VERTICAL SCAN DISABLE VSD
0(DISABLE)/1(ENABLE)
0 FIX
BLACK STRETCH BKS
0(DISABLE)/1(ENABLE)
1 FIX
AUTOMATIC VOLUME LEVELING AVL
0(DISABLE)/1(ENABLE)
1 FIX
FAST FILTER IF-PLL FFI
0(DISABLE)/1(ENABLE)
0 FIX
ENABLE VERTICAL GUARD (RGB BLANKING)
EVG
0(DISABLE)/1(ENABLE)
1 FIX ONLY BLK
EHT TRACKING MODE (HCO) EHT
0(DISABLE)/1(ENABLE)
1 FIX
OVERSCAN SWITCH OFF OSO
0(DISABLE)/1(ENABLE)
0 FIX
AUTO COLOUR LIMIT ACL
0(DISABLE)/1(ENABLE)
0 FIX
FORCED COLOUR LIMIT FCO
0(DISABLE)/1(ENABLE)
0FIX
SOUND SYSTEM M S-M
0(DISABLE)/1(ENABLE)
0FIX
SOUND SYSTEM DK S-DK
0(DISABLE)/1(ENABLE)
1FIX *1
SOUND SYSTEM I S-I
0(DISABLE)/1(ENABLE)
1FIX *1
SOUND SYSTEM BG S-BG
0(DISABLE)/1(ENABLE)
1FIX
PLAYBACK SECAM P-SECAM
0(DISABLE)/1(ENABLE)
1FIX *1
FE (RF) NTSC 3.58 F-N358
0(DISABLE)/1(ENABLE)
0FIX
FE (RF) NTSC 4.43 F-N443
0(DISABLE)/1(ENABLE)
1 FIX *1
FE (RF) SECAM F-SECAM
0(DISABLE)/1(ENABLE)
1 FIX *1
VIDEO MUTE AT IDENT LOSS VMI
0(DISABLE)/1(ENABLE)
1 FIX
VIDEO MUTE AT PROGRAM/SOURCE CHANGE
VMC
0(DISABLE)/1(ENABLE)
1 FIX
HOTEL MODE HTL
0(DISABLE)/1(ENABLE)
0 FIX
REDUCED FM DEMODULATOR GAIN FOR BTSC SIGNAL
BTSC
0(DISABLE)/1(ENABLE)
0FIX
NUMBER OF EXTERNAL AV SOURCE AV
0 FOR1 AV/1 FOR 2AV
1FIX *2
FM WINDOW SELECTION FMWS
0(DISABLE)/1(ENABLE)
0FIX
SOUND MUTE BIT 0 SM0
0(DISABLE)/1(ENABLE)
1FIX
SOUND MUTE BIT 1 SM1
0(DISABLE)/1(ENABLE)
0FIX
THAI LANGUAGE THA
0(DISABLE)/1(ENABLE)
0FIX
ARABIC LANGUAGE ARA
0(DISABLE)/1(ENABLE)
1FIX *1
MALAY LANGUAGE MAL
0(DISABLE)/1(ENABLE)
1 FIX *1
CHINESE LANGUAGE CHI
0(DISABLE)/1(ENABLE)
1 FIX *1
FRENCH LANGUAGE FRE
0(DISABLE)/1(ENABLE)
1 FIX *1
RUSSIAN LANGUAGE RUS
0(DISABLE)/1(ENABLE)
1 FIX *1
FORCED V-SYNC SLICING LEVEL FSL
0(DISABLE)/1(ENABLE)
0 FIX
SYNC OF OSD HP2
0(DISABLE)/1(ENABLE)
0 FIX
TUNER CPT CPT
0(DISABLE)/1(ENABLE)
0 FIX
BILINGUAL BIL
0(DISABLE)/1(ENABLE)
0 FIX
IF AGC SPEED BIT 0 AGC0
0(DISABLE)/1(ENABLE)
1 FIX
IF AGC SPEED BIT 1 AGC1
0(DISABLE)/1(ENABLE)
0FIX
PHI-1 TIME CONSTANT (RF) FOA-FE
0(DISABLE)/1(ENABLE)
0FIX
PHI-1 TIME CONSTANT (RF) FOB-FE
0(DISABLE)/1(ENABLE)
0FIX
PHI-1 TIME CONSTANT (OFF AIR) FOA-AV
0(DISABLE)/1(ENABLE)
1 FIX
PHI-1 TIME CONSTANT (OFF AIR) FOB-AV
0(DISABLE)/1(ENABLE)
1 FIX
NOTE :
FIXED DATA, PLEASE DO NOT CHANGE WITHOUT SPECIFIC INSTRUCTION.
*1: MANUALLY CHANGE TO 0.
*2: FOR 14U10 & 14U15, SET TO 0.

14U10/15
14U20/25
6
6-1 6-2
PIF ADJUSTMENT
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
Tuner IFT
( PRESET )
11. Get the tuner ready to receive the CH.E - 9 sig-
nal, 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 to 80dBµV.
4. Connect the response lead ( use LOW IMPED-
ANCE probe with wave detector ; see Fig.1 ) to
thetuner'sIF outputterminal.(This terminal must
have the probe alone connected ).
5. Set the RF AGC to 0 - 6V with no saturation 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 position
during this adjustment.
RF-AGC
TAKE OVER
POINT AD-
JUSTMENT
(I
2
C BUS
CONTROL)
1. Receive "PAL COLOUR BAR" signal.
»Signal Strength: 57 ±1 dBµV (75 ohm open)
2. Connect the oscilloscope to TP201 (Tuner’s AGC
Terminal) as shown in Fig.3.
3. Call "AGC" mode in service mode. Adjust the
"AGC" bus data to obtain the Tuner output pin
drop 0.1V below maximum voltage.
4. Change the antenna input signal to 63~67dBµV,
and make sure there is no noise.
5. Turnupthe inputsignalto 90~95dBµVtobe sure
that there is no cross modulation beat.
Note: For the 50 ohm signal
strength gauge, when not
using 50/75 impedance
adapter, signal strength is
52±1dBµV(75 ohm open), in-
stead of 57±1dBµV (75 ohm
open).
Precaution: The loss of using
impedance adapter
2
»Bias box: About 4.5 V
Oscilloscope
0.1V
TV Set
Bias box
TP201+
+
–
–
Fig. 3
E-9 CH
P C
10k
100k
1n60
75ohm
IF OUT
-1.5+/-0.8dB
1000p
Oscilloscope
Fig.1
Fig.2
SHIPPING SETTING & CHECKING
(1) The following default data has been factory-set for the E
2
PROM.
ITEMS DATA SETTING
LAST PROGRAM/CHANNEL 1
FLASHBACK PROGARM/CH 1
DIGIT 1
C-SYSTEM AUTO
S-SYSTEM B/G
SKIP OFF
AFC ON
VOLUME 1
CONTRAST 60 (MAX)
COLOUR 0 (CENTER)
BRIGHTNESS 0 (CENTER)
TINT 0 (CENTER)
SHARPNESS 0 (CENTER)
WHITE TEMP STANDARD
REMINDER TIMER In-active, "--:--"
ON TIMER In-active, "--:--"
OFF TIMER In-active, "--:--"
LAST POWER POWER-ON
LANGUAGE ENGLISH
BLUE BACK MUTE OFF
HOTEL MODE OFF

14U10/15
14U20/25
7
7-1 7-2
CONVERGENCE ADJUSTMENT
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
CONVERGENC
ADJ.
( To be done
after the purity
adjustment.)
1
RGB
BGR
R
G
B
R
G
B
B
G
R
B
G
R
R G B
BGR
Lacquer
Wedge "a"
Wedge
"b" Wedge
"c"
About
100
Deg
About
100
Deg
4-pole magnet
6-pole magnet
CRT neck
20cm
40cm(14")
(21")
Lacquer
Purity magnet
Fig. a
Fig. b
Fig. c
Fig. d
1. Receive the "Crosshatch Pattern" signal.
2. Using the remote controller, call NORMAL mode.
STATIC CONVERGENCE
1. Turn the 4-pole magnet to a proper opening an-
gle in order to superpose the blue and red col-
ours.
2. Turn the 6-pole magnet to a proper opening an-
gle in order to superpose 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.
a) Fig. a: Drive the wedge at point "a" and swing
the deflection coil upward.
b) Fig. b: Drive the wedge at points "b" and "c"
and swing the deflection coil downward.
c) Fig. c: Drive the "c" wedge deeper and swing
the deflection coil rightward.
d) Fig. d: Drive the "b" wedge deeper and swing
the deflection coil leftward.
2. Fix all the wedges on the CRT and apply glass
tape over them.
3. Apply lacquer to the deflection yoke lock screw,
magnet unit (purity, 4-pole, 6-pole magnets) and
magnet unit lock screw.
Finally received the Red-only and Blue-only sig-
nalstomake surethere is noother coloursonthe
screen.
PURITY ADJUSTMENT
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
PURITY ADJ. 1. Receive the GREEN-ONLY signal. Adjust the
beam current to ~ 500 µA.
2. Maintain the purity magnet at the zero magnetic
field and keep the static convergence roughly
adjusted.
3. Observe the points a, b, as shown in Fig. 1-1
through the microscope.Adjust the landing to the
A rank requirements.
4. Orient the raster rotation to 0 eastward.
5. Tighten up the deflection coil screws.
»Tightening torque: 108 ±20 N (11 ±2 kgf)
6. Make sure the CRT corners landing meet the A
rank requirements. If not, stick the magnet sheet
to correct it.
Note: This adjustment must be done after
warming up the unit for 30 minutes or
longer with a beam current over 500 µA.
1
ab
A
B
A
B
A = B
A = B
Rank "A"
(On the right of the CRT)
Rank "A"
(On the left of the CRT)
Fig. 1-1
Fig. 1-2
Fig. 1-3

14U10/15
14U20/25
8
8-1 8-2
CUT-OFF, BACKGROUND AND SUB-CONTRAST ADJUSTMENT
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
CRT CUTOFF
ADJUSTMENT
(I
2
C BUS
CONTROL)
1. SwitchTV toVIDEOmode,BLUE BACKOFF,with
NO VIDEO signal.
2. Press R/C to set Picture Normal condition.
3. Connect the oscilloscope to Red OUT from
IC801.(TP851)
Range : 1 V/Div (DC)
Sweep : 5 msec/Div
4. AdjustSCREENVR, sothat thetip ofsignal reach
3.0 Vdc + 0.1 Vdc.
1
1 V
3.0Vdc
0
SUB-BRIGHT-
NESS
ADJUSMENT
(I
2
C BUS
CONTROL)
1. Call"SUB-BRI" inservice mode.(Receive Cross-
hatch pattern with 5 black level windows)
2. Adjust the " SUB BRIGHT " bus data in order that
the line 1, 2 and 3 have the same darkness
whereas line 4 is slightly brighter than line 1, 2
and 3 and finally line 5 will be the brighter than
line 4.
2
1, 2, 3 are in same black level.
1 2 3 4 5
WHITE BAL-
ANCE SERV-
ICE MODE
ADJ. (I
2
C BUS
CONTROL)
1. Receive the "WHITE" pattern with BURST signal.
2. Press R/C to set Picture NORMAL condition.
3. Connect the DC miliammeter between TP602 (-)
and TP603 (+).
4. Check Beam current should be around 800 µA.
5. Set it to service mode and adjust the " DRI-GS" &
"DRI-BS" data to have a colour temperature of
12,300°K ( white ). * Note .
6. Receive"WHITE" pattern,with BURSTsignal,and
set Brightness Y by generator, to **10cd/m
2
Minolta CA-100) by reducing LuminateY signal.
7. Adjust"CUT-R"& "CUT-G" toget 12,300°K.Then
go back normal mode. (High Bright)** to check
colour temperature. If out of range, back to 1.
Note: This adjustment must be done after
warming up the unit for 30 minutes or
longer with a beam current over 500µA).
* Adjust DRI-GC/GW, DRI-BC/BW as following
data, after finishing DRI-GS and DRI-BS: DRI-
GC=DRI-GW="DRI-GS"-7:DRI-BW="DRI-BS"-
7:DRI-RC=25:DRI-BC=DRI-BS:DRI-RW=32
** Low=10cd/m
2
:High=200cd/m
2
3* 12,300°K X : 0.272
Y: 0.275
(MINOLTA COLOUR ANALYZER
CA-100)
*Note: Above Data can be UP/
DOWN by Volume key.
Maximum
beam check 1. Receive the "Monoscope Pattern" signal.
2. Press R/C to set Picture NORMAL condition.
3. Connect the DC miliammeter betweenTP603 (+)
and TP602 (–).
(Full Scale: 3 mA Range)
4. Beam current must be within 800 ±100 µA.
4
PAL CHROMA ADJUSTMENT
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
SUB COLOUR
(I
2
C BUS
CONTROL)
1. Receive the "PAL Colour Bar" signal.
2. Press R/C to set Picture Normal condition.
3. ConnecttheoscilloscopetoRedcathode(TP854).
»Range : 20V/Div.(AC) (Using 10:1 probe)
»Sweep time : 10 µsec/Div.
4. UsingtheR/C call"SUB COL"in SERVICEmode.
Adjust SUB COLOUR bus data, so that the 75%
White & Red portions of PAL Colour Bar be at the
same level shown as Fig.1-1.
5. Clear the SERVICE mode.
1
Cy GB
WY 100%W
75% Mg R
Fig. 1-1
HORIZONTAL ANDVERTICAL DEFLECTION LOOP and Focus AD-
JUSTMENT
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
V-SLOPE (I
2
C
BUS CON-
TROL)
V-SHIFT-50
(I
2
C BUS
CONTROL)
V - AMP 50 (I
2
C
BUS CON-
TROL)
S-CORREC-
TION (I
2
C BUS
CONTROL)
H - SHIFT (50)
(H-CENTER)
(I
2
C BUS
CONTROL)
1. Receive Monoscope Pattern Signal.
2. Call the "V-LIN" mode.
3. Increase or decrease "V-LIN" by Volume key till
the horizontal line in the center of monoscope is
just at the position where the blanking starts.
1. Call the "V-CENT" mode.
2. Increase or decrease "V-CENT" by Volume key
till the picture is centered.
1. Call the "V-AMP" mode.
2. Increase or decrease "V - AMP" by Volume key
to set overscan of 9.5% typical.
Adjustment Spec 9.5% range +1% -0%.
FIXED DATA, NO NEED TO ADJUST.
1. Call the "H-CENT" mode.
2. Increase or decrease "H-CENT" by Volume key
to center the picture horizontal.
1
2
3
4
5
FOCUS 1. Receive the "Monoscope Pattern" signal.
2. Press R/C to set Picture NORMAL condition.
3. Adjust the focus control to get the best focusing.
6

14U10/15
14U20/25
9
9-1 9-2
A/V INPUT AND OUTPUT CHECKING
(Continued)
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
SUBWOOFER
OUTPUT
CHECK
1. Receive "PAL Colour Bar" signal (Sound 400Hz,
100% Mod.)
2. Setthesound outputto 2.83Vrms byvolumekey.
3. Terminal the "Sub-Woofer" output with a 22 kilo-
ohms impedance.
Make sure that output is 4.0Vp-p ±3 dB.
3
FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
CONTRAST
key 1. Receive "Monoscope Pattern" signal.
2. Set P-Mode to select CONTRAST.
3. PressVolume Up/Downkeyto checkwhether the
CONTRAST effect is OK or not.
1
1. Receive "Color Bar" signal.
2. Set P-Mode to select COLOUR.
3. Press Volume Up/Down key to check whether
the COLOUR effect is OK or not.
2COLOUR key
BRIGHTNESS
key 1. Receive "Monoscope Pattern" signal.
2. Set P-Mode to select BRIGHTNESS.
3. Press Volume Up/Down key to check whether
the BRIGHTNESS effect is OK or not.
3
TINT key 1. Receive the"NTSC Colour Bar"signal thru AV in.
2. Set P-Mode to select TINT.
3. Press Volume Up/Down key to check TINT, UP
for GREEN direction and DOWN for PURPLE di-
rection whether is OK or not.
4
SHARPNESS
Key 1. Receive "Monoscope Pattern" signal.
2. Set P-mode to select SHARPNESS.
3. PressVolume Up/Downkeyto checkwhether the
SHARPNESS effect is OK or not.
5
CH DISPLAY
COLOUR 1. All Ch (1~99) will have an OSD display of the
channel number in green colour under AFT ON
condition.
6
NORMAL Key71. Once in PICTURE Mode, and the NORMAL key
is pressed, all the settings will be present to nor-
mal setting.
(Normal setting value for every mode).
»CONTRAST : MAX
»COLOUR : CENTER
»BRIGHTNESS : CENTER
»TINT : CENTER
»SHARPNESS : CENTER
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
SUB-TINT (I
2
C
BUS CON-
TROL)
1. Receive the "NTSC3.58 Colour Bar" signal
through AV in.
2. Connect the oscilloscope to TP853 (P882 PIN5)
BLUE-OUT.
»Range :100mV/Div.(AC)(UseProbe10:1)
»Sweep time : 10 µsec/Div.
3. Call the "SUB-TINT" mode in service mode. Ad-
just the "SUB-TINT" bus data to obtain the wave-
form shown as Fig. 1-1.
4. Clear the SERVICE mode.
1
Fig. 1-1
NTSC CHROMA ADJUSTMENT
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
BEAM PRO-
TECTOR 1. Receive "Monoscope Pattern" signal.
2. Set CONTRAST MAX.
3. Set BRIGHT MAX.
4. During the Collector & Emitter of Q883/5/7 short,
makesure the protectorONandswitchto standby
mode.
1* Select one of Q883/5/7 to do
each short test.
H, V PROTEC-
TOR 1. Receive "Monoscope Pattern" signal.
2. Connect output of Bias Box to D607 cathode
(R606 side).
3. Set voltage of Bias Box to 18V and make sure
the protector is not work.
4. Set voltage of Bias Box to 27V, and make sure
the protector is work.
2
OTHER
PROTECTOR 1. Once finish rectified Electrolytic Capacitor short
testing in +B line, check all possible damaged
components on +B line.
(Use random selected set for inspection)
3
PROTECTOR OPERATION CHECKING
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
VIDEO AND
AUDIO
OUTPUT
CHECK
1. Receive the "PAL Color Bar" signal (100%White
Color Bar, Sound 400 Hz 100% Mod C475)
2. Terminate the Video output with a 75 ohm imped-
ance.Make sure the output is as specified (1.0
Vp-p ±3 dB).
3. Terminate the Audio output with a 10k ohm im-
pedance. Make sure the O/P is as specified
(1.76 Vp-p ±3 dB).
1
VIDEO AND
AUDIO INPUT
CHECK
1. Using the TV/AV key on the remote controller,
make sure that the modes change in order ofTV,
AV1, AV2 & TV again and the video & audio out-
put are according to the input terminal for each
mode.
2
A/V INPUT AND OUTPUT CHECKING
WYCy G Mg R B
(SAME LEVEL)

14U10/15
14U20/25
10
10-1 10-2
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
8 WHITETEMP 1. Receive "Monoscope Pattern" signal.
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 di-
rection changing.
FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
(Continued)
1. Receive the "PAL COLOUR BAR" signal, press
the COLOUR SYSTEM key to select modes ex-
ceptPAL,checktheCOLOUR isnot workingprop-
erly. Then, select the "PAL" mode. Check again
its colour so that it is working properly.
2. Receive"NTSC 4.43/3.58"signal,press COLOUR
SYSTEM key to select modes except NTSC4.43/
3.58, check the COLOUR is not working prop-
erly. Then, select the "NTSC 4.43/3.58" mode.
Check again its colour so that it is working prop-
erly.
1. Receive "PAL-B/G" signal, press the "SOUND
SYSTEM" to select D/K, I. Check the sound out-
put is not working properly.
Select B/G and check the sound output to make
sure it is working propely.
COLOUR
SYSTEM
9
SOUND
SYSTEM
10
HEADPHONE JACK CHECKING (FOR 14U20 & 14U25 ONLY)
No.
Adjusment point
Conditions/Adjusting procedure Waveform or others
HEADPHONE
OUTPUT
CHECKING
1. ReceivePALCOLOURPAR with SOUND400Hz,
100% MODULATION (±50kHz Dev).
2. Maximum volume, and check the headphone
output with 400Hz sound and no sound out from
speaker.
1
Check OSD LANGUAGE quantity and type as be-
low:
ENGLISH, only.
1. Receive "PAL COLOUR BAR" signal.
2. Turn up the volume control to maximum, make
sure the sound is heard from the speakers. Then
put the unit in no signal state.
3. Check the sound mute is effective.
4. Finally turn sound level of CTV to minimum.
NOISE MUTE
CHECKING
11
OSD LAN-
GUAGE
QUANTITY
CHECK
12

14U10/15
14U20/25
11
11-1 11-2
ADDRESS DATA MICON E
2
PROM E
2
PROM CHASSIS CTV FINAL LAST INITIAL
REMARK
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECKTYPE SETTING DATA
MODEL MODEL
LETTER NO. LETTER NO.
00 PASS WORD 55 00-FF
01 PASS WORD 4F 00-FF
02 PASS WORD 43 00-FF
03 PASS WORD A1 00-FF
04
05
06 AGC TAKE-OVER 0E 00-3F
07 V-SLOPE 20 00-3F
08 V-AMPLITUDE 20 00-3F
09 V-CENTER 20 00-3F
0A H-CENTER 20 00-3F
0B H-SIZE 20 00-3F
0C EW-PARALLELOGRAM 20 00-3F
0D EW-PARABOLA/WIDTH 20 00-3F
0E EW-UPPER CORNER 20 00-3F
0F EW-LOWER CORNER 20 00-3F
10 EW-TRAPEZIUM 20 00-3F
11 HORIZONTAL-BOW 20 00-3F
12 S-CORRECTION 00 00-3F
13
14
15
16 DRIVE-R (STANDARD) 20 00-3F
17 DRIVE-G (STANDARD) 20 00-3F
18 DRIVE-B (STANDARD) 20 00-3F
19 DRIVE-R (COOL) 19 00-3F
1A DRIVE-G (COOL) 20 00-3F
1B DRIVE-B (COOL) 20 00-3F
1C DRIVE-R (WARM) 20 00-3F
1D DRIVE-G (WARM) 20 00-3F
1E DRIVE-B (WARM) 20 00-3F
1F
20
21
22 SUB-VOLUME 3F 00-3F
23 SUB-CONTRAST 3F 00-3F
24 SUB-COLOUR 20 00-3F
25 SUB-BRIGHTNESS 20 00-3F
26 SUB-TINT 20 00-3F
27 SUB-SHARPNESS 20 00-3F
28 HTL-VOLUME 20 00-3F
29 HTL-PROGRAM-NUM FF 00-3F
2A
2B
2C
2D OSD-RGB-REFERENCE 0F 00-0F
2E CUTOFF LEVEL-OFFSET R 08 00-0F
2F CUTOFF LEVEL-OFFSET G 08 00-0F
30 CATHODE DRIVE LEVEL 00 00-0F
31 Y-DELAY (TV PAL) 0C 00-0F
32 Y-DELAY (TV SECAM) 0F 00-0F
33 Y-DELAY (TV N358) 0C 00-0F
34 Y-DELAY (TV N443) 0C 00-0F
35 Y-DALAY (TV BW) 0C 00-0F
36 Y-DELAY (AV PAL) 0C 00-0F
37 Y-DELAY (AV SECAM) 0F 00-0F
38 Y-DELAY (AV N443) 0C 00-0F
39 Y-DELAY (AV N358) 0F 00-0F
3A Y-DELAY (AV BW) 0C 00-0F
3B COLOUR-OFFSET (PAL) 08 00-0F
3C COLOUR-OFFSET (SECAM) 08 00-0F
3D COLOUR-OFFSET (N358) 04 00-0F
3E COLOUR-OFFSET (N443) 04 00-0F
3F SHARPNESS-OFFSET (PAL) 08 00-0F
MEMORY MAP

14U10/15
14U20/25
12
12-1 12-2
ADDRESS DATA MICON E
2
PROM E
2
PROM CHASSIS CTV FINAL LAST INITIAL
REMARK
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
MODEL MODEL
LETTER NO. LETTER NO.
40 SHARPNESS-OFFSET (SECAM) 04 00-0F
41 SHARPNESS-OFFSET (N358) 0C 00-0F
42 SHARPNESS-OFFSET (N443) 08 00-0F
43
44 FCO ACL OSO EHT EVG FFI AVL BKS 00-FF
45 SCM N443 N358 PB-SEC BG I DK M 00-FF
46 SM FMWS AV BTSC HTL VMC VMI 00-FF
47 HP2 FSL RUS FRA CHN MLY ARB THA 00-FF
48 AGC BIL OBA 00-FF
49
4A
4B
4C VOLUME 01 00-3C
4D CONTRAST 3C 00-3C
4E COLOUR 1E 00-3C
4F BRIGHTNESS 1E 00-3C
50 TINT 1E 00-3C
51 SHARPNESS 1E 00-3C
52
53
54
55 POSITION/AV1/AV2 01 00-FF
56 FAV-POS A 0A 00-FF
57 FAV-POS B 14 00-FF
58 FAV-POS C 1E 00-FF
59 FAV-POS D 28 00-FF
5A
5B
5C POWER 00 00-01
5D WHITE-TEMP 00 00-02
5E BLUE BACK 00 00-01
5F LANGUAGE 00 00-07
60 DIGIT 00 00-01
61
62 SKIP 0 SKIP 1 SKIP 2 SKIP 3 SKIP 4 SKIP 5 SKIP 6 SKIP 7 80 00-FF
63 SKIP 8 SKIP 9 SKIP 10 SKIP 11 SKIP 12 SKIP 13 SKIP 14 SKIP 15 00 00-FF
64 SKIP 16 SKIP 17 SKIP 18 SKIP 19 SKIP 20 SKIP 21 SKIP 22 SKIP 23 00 00-FF
65 SKIP 24 SKIP 25 SKIP 26 SKIP 27 SKIP 28 SKIP 29 SKIP 30 SKIP 31 00 00-FF
66 SKIP 32 SKIP 33 SKIP 34 SKIP 35 SKIP 36 SKIP 37 SKIP 38 SKIP 39 00 00-FF
67 SKIP 40 SKIP 41 SKIP 42 SKIP 43 SKIP 44 SKIP 45 SKIP 46 SKIP 47 00 00-FF
68 SKIP 48 SKIP 49 SKIP 50 SKIP 51 SKIP 52 SKIP 53 SKIP 54 SKIP 55 00 00-FF
69 SKIP 56 SKIP 57 SKIP 58 SKIP 59 SKIP 60 SKIP 61 SKIP 62 SKIP 63 00 00-FF
6A SKIP 64 SKIP 65 SKIP 66 SKIP 67 SKIP 68 SKIP 69 SKIP 70 SKIP 71 00 00-FF
6B SKIP 72 SKIP 73 SKIP 74 SKIP 75 SKIP 76 SKIP 77 SKIP 78 SKIP 79 00 00-FF
6C SKIP 80 SKIP 81 SKIP 82 SKIP 83 SKIP 84 SKIP 85 SKIP 86 SKIP 87 00 00-FF
6D SKIP 88 SKIP 89 SKIP 90 SKIP 91 SKIP 92 SKIP 93 SKIP 94 SKIP 95 00 00-FF
6E SKIP 96 SKIP 97 SKIP 98 SKIP 99 00 00-FF
6F
70
71
72
73
74 TUNING FREQUENCY (HIGHER PART) S-SYS POS 0
75 TUNING FREQUENCY (LOWER PART) 000:BG
76 S-SYS AFT (auto) C-SYS 001:I
77 TUNING FREQUENCY (HIGHER PART) 010:DK POS 1
78 TUNING FREQUENCY (LOWER PART) 011:M
79 S-SYS AFT (auto) C-SYS
7A TUNING FREQUENCY (HIGHER PART) AFT POS 2
7B TUNING FREQUENCY (LOWER PART) 0:OFF
7C S-SYS AFT (auto) C-SYS 1:ON
7D TUNING FREQUENCY (HIGHER PART) POS 3
7E TUNING FREQUENCY (LOWER PART)
7F S-SYS AFT (auto) C-SYS

14U10/15
14U20/25
13
13-1 13-2
ADDRESS DATA MICON E
2
PROM E
2
PROM CHASSIS CTV FINAL LAST INITIAL
REMARK
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
MODEL MODEL
LETTER NO. LETTER NO.
80 TUNING FREQUENCY (HIGHER PART) POS 4
81 TUNING FREQUENCY (LOWER PART)
82 S-SYS AFT (auto) C-SYS
83 TUNING FREQUENCY (HIGHER PART) POS 5
84 TUNING FREQUENCY (LOWER PART)
85 S-SYS AFT (auto) C-SYS
86 TUNING FREQUENCY (HIGHER PART) POS 6
87 TUNING FREQUENCY (LOWER PART)
88 S-SYS AFT (auto) C-SYS
89 TUNING FREQUENCY (HIGHER PART) POS 7
8A TUNING FREQUENCY (LOWER PART)
8B S-SYS AFT (auto) C-SYS
8C TUNING FREQUENCY (HIGHER PART) POS 8
8D TUNING FREQUENCY (LOWER PART)
8E S-SYS AFT (auto) C-SYS
8F TUNING FREQUENCY (HIGHER PART) POS 9
90 TUNING FREQUENCY (LOWER PART)
91 S-SYS AFT (auto) C-SYS
92 TUNING FREQUENCY (HIGHER PART) POS 10
93 TUNING FREQUENCY (LOWER PART)
94 S-SYS AFT (auto) C-SYS
95 TUNING FREQUENCY (HIGHER PART) POS 11
96 TUNING FREQUENCY (LOWER PART)
97 S-SYS AFT (auto) C-SYS
98 TUNING FREQUENCY (HIGHER PART) POS 12
99 TUNING FREQUENCY (LOWER PART)
9A S-SYS AFT (auto) C-SYS
9B TUNING FREQUENCY (HIGHER PART) POS 13
9C TUNING FREQUENCY (LOWER PART)
9D S-SYS AFT (auto) C-SYS
9E TUNING FREQUENCY (HIGHER PART) POS 14
9F TUNING FREQUENCY (LOWER PART)
A0 S-SYS AFT (auto) C-SYS
A1 TUNING FREQUENCY (HIGHER PART) POS 15
A2 TUNING FREQUENCY (LOWER PART)
A3 S-SYS AFT (auto) C-SYS
A4 TUNING FREQUENCY (HIGHER PART) POS 16
A5 TUNING FREQUENCY (LOWER PART)
A6 S-SYS AFT (auto) C-SYS
A7 TUNING FREQUENCY (HIGHER PART) POS 17
A8 TUNING FREQUENCY (LOWER PART)
A9 S-SYS AFT (auto) C-SYS
AA TUNING FREQUENCY (HIGHER PART) POS 18
AB TUNING FREQUENCY (LOWER PART)
AC S-SYS AFT (auto) C-SYS
AD TUNING FREQUENCY (HIGHER PART) POS 19
AE TUNING FREQUENCY (LOWER PART)
AF S-SYS AFT (auto) C-SYS
B0 TUNING FREQUENCY (HIGHER PART) POS 20
B1 TUNING FREQUENCY (LOWER PART)
B2 S-SYS AFT (auto) C-SYS
B3 TUNING FREQUENCY (HIGHER PART) POS 21
B4 TUNING FREQUENCY (LOWER PART)
B5 S-SYS AFT (auto) C-SYS
B6 TUNING FREQUENCY (HIGHER PART) POS 22
B7 TUNING FREQUENCY (LOWER PART)
B8 S-SYS AFT (auto) C-SYS
B9 TUNING FREQUENCY (HIGHER PART) POS 23
BA TUNING FREQUENCY (LOWER PART)
BB S-SYS AFT (auto) C-SYS
BC TUNING FREQUENCY (HIGHER PART) POS 24
BD TUNING FREQUENCY (LOWER PART)
BE S-SYS AFT (auto) C-SYS
BF TUNING FREQUENCY (HIGHER PART) POS 25

14U10/15
14U20/25
14
14-1 14-2
C0 TUNING FREQUENCY (LOWER PART)
C1 S-SYS AFT (auto) C-SYS
C2 TUNING FREQUENCY (HIGHER PART) POS 26
C3 TUNING FREQUENCY (LOWER PART)
C4 S-SYS AFT (auto) C-SYS
C5 TUNING FREQUENCY (HIGHER PART) POS 27
C6 TUNING FREQUENCY (LOWER PART)
C7 S-SYS AFT (auto) C-SYS
C8 TUNING FREQUENCY (HIGHER PART) POS 28
C9 TUNING FREQUENCY (LOWER PART)
CA S-SYS AFT (auto) C-SYS
CB TUNING FREQUENCY (HIGHER PART) POS 29
CC TUNING FREQUENCY (LOWER PART)
CD S-SYS AFT (auto) C-SYS
CE TUNING FREQUENCY (HIGHER PART) POS 30
CF TUNING FREQUENCY (LOWER PART)
D0 S-SYS AFT (auto) C-SYS
D1 TUNING FREQUENCY (HIGHER PART) POS 31
D2 TUNING FREQUENCY (LOWER PART)
D3 S-SYS AFT (auto) C-SYS
D4 TUNING FREQUENCY (HIGHER PART) POS 32
D5 TUNING FREQUENCY (LOWER PART)
D6 S-SYS AFT (auto) C-SYS
D7 TUNING FREQUENCY (HIGHER PART) POS 33
D8 TUNING FREQUENCY (LOWER PART)
D9 S-SYS AFT (auto) C-SYS
DA TUNING FREQUENCY (HIGHER PART) POS 34
DB TUNING FREQUENCY (LOWER PART)
DC S-SYS AFT (auto) C-SYS
DD TUNING FREQUENCY (HIGHER PART) POS 35
DE TUNING FREQUENCY (LOWER PART)
DF S-SYS AFT (auto) C-SYS
E0 TUNING FREQUENCY (HIGHER PART) POS 36
E1 TUNING FREQUENCY (LOWER PART)
E2 S-SYS AFT (auto) C-SYS
E3 TUNING FREQUENCY (HIGHER PART) POS 37
E4 TUNING FREQUENCY (LOWER PART)
E5 S-SYS AFT (auto) C-SYS
E6 TUNING FREQUENCY (HIGHER PART) POS 38
E7 TUNING FREQUENCY (LOWER PART)
E8 S-SYS AFT (auto) C-SYS
E9 TUNING FREQUENCY (HIGHER PART) POS 39
EA TUNING FREQUENCY (LOWER PART)
EB S-SYS AFT (auto) C-SYS
EC TUNING FREQUENCY (HIGHER PART) POS 40
ED TUNING FREQUENCY (LOWER PART)
EE S-SYS AFT (auto) C-SYS
EF TUNING FREQUENCY (HIGHER PART) POS 41
F0 TUNING FREQUENCY (LOWER PART)
F1 S-SYS AFT (auto) C-SYS
F2 TUNING FREQUENCY (HIGHER PART) POS 42
F3 TUNING FREQUENCY (LOWER PART)
F4 S-SYS AFT (auto) C-SYS
F5 TUNING FREQUENCY (HIGHER PART) POS 43
F6 TUNING FREQUENCY (LOWER PART)
F7 S-SYS AFT (auto) C-SYS
F8 TUNING FREQUENCY (HIGHER PART) POS 44
F9 TUNING FREQUENCY (LOWER PART)
FA S-SYS AFT (auto) C-SYS
FB TUNING FREQUENCY (HIGHER PART) POS 45
FC TUNING FREQUENCY (LOWER PART)
FD S-SYS AFT (auto) C-SYS
FE
FF
ADDRESS DATA MICON E
2
PROM E
2
PROM CHASSIS CTV FINAL LAST INITIAL
REMARK
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
MODEL MODEL
LETTER NO. LETTER NO.

14U10/15
14U20/25
15
15-1 15-2
ADDRESS DATA MICON E
2
PROM E
2
PROM CHASSIS CTV FINAL LAST INITIAL
REMARK
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
MODEL MODEL
LETTER NO. LETTER NO.
100 POS 46
101 TUNING FREQUENCY (HIGHER PART) POS 47
102 TUNING FREQUENCY (LOWER PART)
103 S-SYS AFT (auto) C-SYS
104 TUNING FREQUENCY (HIGHER PART) POS 48
105 TUNING FREQUENCY (LOWER PART)
106 S-SYS AFT (auto) C-SYS
107 TUNING FREQUENCY (HIGHER PART) POS 49
108 TUNING FREQUENCY (LOWER PART)
109 S-SYS AFT (auto) C-SYS
10A TUNING FREQUENCY (HIGHER PART) POS 50
10B TUNING FREQUENCY (LOWER PART)
10C S-SYS AFT (auto) C-SYS
10D TUNING FREQUENCY (HIGHER PART) POS 51
10E TUNING FREQUENCY (LOWER PART)
10F S-SYS AFT (auto) C-SYS
110 TUNING FREQUENCY (HIGHER PART) POS 52
111 TUNING FREQUENCY (LOWER PART)
112 S-SYS AFT (auto) C-SYS
113 TUNING FREQUENCY (HIGHER PART) POS 53
114 TUNING FREQUENCY (LOWER PART)
115 S-SYS AFT (auto) C-SYS
116 TUNING FREQUENCY (HIGHER PART) POS 54
117 TUNING FREQUENCY (LOWER PART)
118 S-SYS AFT (auto) C-SYS
119 TUNING FREQUENCY (HIGHER PART) POS 55
11A TUNING FREQUENCY (LOWER PART)
11B S-SYS AFT (auto) C-SYS
11C TUNING FREQUENCY (HIGHER PART) POS 56
11D TUNING FREQUENCY (LOWER PART)
11E S-SYS AFT (auto) C-SYS
11F TUNING FREQUENCY (HIGHER PART) POS 57
120 TUNING FREQUENCY (LOWER PART)
121 S-SYS AFT (auto) C-SYS
122 TUNING FREQUENCY (HIGHER PART) POS 58
123 TUNING FREQUENCY (LOWER PART)
124 S-SYS AFT (auto) C-SYS
125 TUNING FREQUENCY (HIGHER PART) POS 59
126 TUNING FREQUENCY (LOWER PART)
127 S-SYS AFT (auto) C-SYS
128 TUNING FREQUENCY (HIGHER PART) POS 60
129 TUNING FREQUENCY (LOWER PART)
12A S-SYS AFT (auto) C-SYS
12B TUNING FREQUENCY (HIGHER PART) POS 61
12C TUNING FREQUENCY (LOWER PART)
12D S-SYS AFT (auto) C-SYS
12E TUNING FREQUENCY (HIGHER PART) POS 62
12F TUNING FREQUENCY (LOWER PART)
130 S-SYS AFT (auto) C-SYS
131 TUNING FREQUENCY (HIGHER PART) POS 63
132 TUNING FREQUENCY (LOWER PART)
133 S-SYS AFT (auto) C-SYS
134 TUNING FREQUENCY (HIGHER PART) POS 64
135 TUNING FREQUENCY (LOWER PART)
136 S-SYS AFT (auto) C-SYS
137 TUNING FREQUENCY (HIGHER PART) POS 65
138 TUNING FREQUENCY (LOWER PART)
139 S-SYS AFT (auto) C-SYS
13A TUNING FREQUENCY (HIGHER PART) POS 66
13B TUNING FREQUENCY (LOWER PART)
13C S-SYS AFT (auto) C-SYS
13D TUNING FREQUENCY (HIGHER PART) POS 67
13E TUNING FREQUENCY (LOWER PART)
13F S-SYS AFT (auto) C-SYS

14U10/15
14U20/25
16
16-1 16-2
ADDRESS DATA MICON E
2
PROM E
2
PROM CHASSIS CTV FINAL LAST INITIAL
REMARK
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
MODEL MODEL
LETTER NO. LETTER NO.
140 TUNING FREQUENCY (HIGHER PART) POS 68
141 TUNING FREQUENCY (LOWER PART)
142 S-SYS AFT (auto) C-SYS
143 TUNING FREQUENCY (HIGHER PART) POS 69
144 TUNING FREQUENCY (LOWER PART)
145 S-SYS AFT (auto) C-SYS
146 TUNING FREQUENCY (HIGHER PART) POS 70
147 TUNING FREQUENCY (LOWER PART)
148 S-SYS AFT (auto) C-SYS
149 TUNING FREQUENCY (HIGHER PART) POS 71
14A TUNING FREQUENCY (LOWER PART)
14B S-SYS AFT (auto) C-SYS
14C TUNING FREQUENCY (HIGHER PART) POS 72
14D TUNING FREQUENCY (LOWER PART)
14E S-SYS AFT (auto) C-SYS
14F TUNING FREQUENCY (HIGHER PART) POS 73
150 TUNING FREQUENCY (LOWER PART)
151 S-SYS AFT (auto) C-SYS
152 TUNING FREQUENCY (HIGHER PART) POS 74
153 TUNING FREQUENCY (LOWER PART)
154 S-SYS AFT (auto) C-SYS
155 TUNING FREQUENCY (HIGHER PART) POS 75
156 TUNING FREQUENCY (LOWER PART)
157 S-SYS AFT (auto) C-SYS
158 TUNING FREQUENCY (HIGHER PART) POS 76
159 TUNING FREQUENCY (LOWER PART)
15A S-SYS AFT (auto) C-SYS
15B TUNING FREQUENCY (HIGHER PART) POS 77
15C TUNING FREQUENCY (LOWER PART)
15D S-SYS AFT (auto) C-SYS
15E TUNING FREQUENCY (HIGHER PART) POS 78
15F TUNING FREQUENCY (LOWER PART)
160 S-SYS AFT (auto) C-SYS
161 TUNING FREQUENCY (HIGHER PART) POS 79
162 TUNING FREQUENCY (LOWER PART)
163 S-SYS AFT (auto) C-SYS
164 TUNING FREQUENCY (HIGHER PART) POS 80
165 TUNING FREQUENCY (LOWER PART)
166 S-SYS AFT (auto) C-SYS
167 TUNING FREQUENCY (HIGHER PART) POS 81
168 TUNING FREQUENCY (LOWER PART)
169 S-SYS AFT (auto) C-SYS
16A TUNING FREQUENCY (HIGHER PART) POS 82
16B TUNING FREQUENCY (LOWER PART)
16C S-SYS AFT (auto) C-SYS
16D TUNING FREQUENCY (HIGHER PART) POS 83
16E TUNING FREQUENCY (LOWER PART)
16F S-SYS AFT (auto) C-SYS
170 TUNING FREQUENCY (HIGHER PART) POS 84
171 TUNING FREQUENCY (LOWER PART)
172 S-SYS AFT (auto) C-SYS
173 TUNING FREQUENCY (HIGHER PART) POS 85
174 TUNING FREQUENCY (LOWER PART)
175 S-SYS AFT (auto) C-SYS
176 TUNING FREQUENCY (HIGHER PART) POS 86
177 TUNING FREQUENCY (LOWER PART)
178 S-SYS AFT (auto) C-SYS
179 TUNING FREQUENCY (HIGHER PART) POS 87
17A TUNING FREQUENCY (LOWER PART)
17B S-SYS AFT (auto) C-SYS
17C TUNING FREQUENCY (HIGHER PART) POS 88
17D TUNING FREQUENCY (LOWER PART)
17E S-SYS AFT (auto) C-SYS
17F POS 89

14U10/15
14U20/25
17
17-1 17-2
ADDRESS DATA MICON E
2
PROM E
2
PROM CHASSIS CTV FINAL LAST INITIAL
REMARK
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
MODEL MODEL
LETTER NO. LETTER NO.
180 POS 89
181
182 TUNING FREQUENCY (HIGHER PART) POS 90
183 TUNING FREQUENCY (LOWER PART)
184 S-SYS AFT (auto) C-SYS
185 TUNING FREQUENCY (HIGHER PART) POS 91
186 TUNING FREQUENCY (LOWER PART)
187 S-SYS AFT (auto) C-SYS
188 TUNING FREQUENCY (HIGHER PART) POS 92
189 TUNING FREQUENCY (LOWER PART)
18A S-SYS AFT (auto) C-SYS
18B TUNING FREQUENCY (HIGHER PART) POS 93
18C TUNING FREQUENCY (LOWER PART)
18D S-SYS AFT (auto) C-SYS
18E TUNING FREQUENCY (HIGHER PART) POS 94
18F TUNING FREQUENCY (LOWER PART)
190 S-SYS AFT (auto) C-SYS
191 TUNING FREQUENCY (HIGHER PART) POS 95
192 TUNING FREQUENCY (LOWER PART)
193 S-SYS AFT (auto) C-SYS
194 TUNING FREQUENCY (HIGHER PART) POS 96
195 TUNING FREQUENCY (LOWER PART)
196 S-SYS AFT (auto) C-SYS
197 TUNING FREQUENCY (HIGHER PART) POS 97
198 TUNING FREQUENCY (LOWER PART)
199 S-SYS AFT (auto) C-SYS
19A TUNING FREQUENCY (HIGHER PART) POS 98
19B TUNING FREQUENCY (LOWER PART)
19C S-SYS AFT (auto) C-SYS
19D TUNING FREQUENCY (HIGHER PART) POS 99
19E TUNING FREQUENCY (LOWER PART)
19F S-SYS AFT (auto) C-SYS
1A0 AV 1
1A1
1A2 (auto) C-SYS
1A3 AV2
1A4
1A5 (auto) C-SYS
1A6
1A7
1A8
1A9
1AA
1AB
1AC
1AD
1AE
1AF
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
1B8
1B9
1BA
1BB
1BC
1BD
1BE
1BF

14U10/15
14U20/25
18
18-1 18-2
1C0
1C1
1C2
1C3
1C4
1C5
1C6
1C7
1C8
1C9
1CA
1CB
1CC
1CD
1CE
1CF
1D0
1D1
1D2
1D3
1D4
1D5
1D6
1D7
1D8
1D9
1DA
1DB
1DC
1DD
1DE
1DF
1E0
1E1
1E2
1E3
1E4
1E5
1E6
1E7
1E8
1E9
1EA
1EB
1EC
1ED
1EE
1EF
1F0
1F1
1F2
1F3
1F4
1F5
1F6
1F7
1F8
1F9
1FA
1FB
1FC
1FD
1FE
1FF
ADDRESS DATA MICON E
2
PROM E
2
PROM CHASSIS CTV FINAL LAST INITIAL
REMARK
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
MODEL MODEL
LETTER NO. LETTER NO.

14U10/15
14U20/25
19
19-1 19-2
TROUBLE SHOOTING TABLE (Continued)
NO PICTURE, NO SOUND
Does signal appear at pin
(44) of IC801 ?
NO SOUND
No snow noise.
Does signal appear at pin (40) of
IC801 ?
Noise increases but no signal is
received.
Check the tuner supply voltage LB must
be approx. 5V. BT must be approx, 32V.
And CH preset data check.
Check the tuner AGC at
TP201.
Does signal
appear at pin (38)
of IC801 ?
Check IC801 and
related circuit.
Check Q205 and
related circuit.
Check pin (1) of SF201 and Tuner related
circuit.
Check pin (37) of IC801 and related
circuit.
Check IC801.
Check C356 and
peripheral circuit.
Check pin (27) of
IC801, Tuner and
related circuit.
Check pin(38) of
IC801.
Does the noise level increase at max.
Contrast, Brightness and Sound controls ?
CIRCUITS TO BE CHECKED:
»Tuner.
»PIF.
»Automatic Gain Control.
»(5V), (32V) Power Source.
CIRCUITS TO BE CHECKED:
»Sound system pins (28) and
(44) of IC801.
»Sound Detector Circuit.
»Sound Switch and Att.
Control.
»Audio Output Circuit.
Does signal appear at pins
(6) and (8) of IC301 ?
Check P301 connector of
IC301 and peripheral circuit. Check Q301, pins(4) and (6)
of IC801 and peripheral
circuit.
Does signal appear at pin(28)
of IC801?
NO
NO
NO
YES
(Signal)
YES
YES
Normal Abnormal
Normal
NO
NO
YES
YES
TROUBLE SHOOTING TABLE
NO RASTER
Blown out.
Replace the fuse.
Check IC701, D701,C707
and D710.
The fuse is again blown out.
Does horizontal circuit
oscillate ?
Check IC751 and IC801.
D1001 (Power LED Red)
turns on or turns ON/OFF.
Check T701 pin (7) voltage
(Approx. 310V at 220V AC)
Check F701.
Check Secondary Main+B
T701 pin (17) voltage
(Approx 115V)
Check CRT connector
K1-K5 bias.
Check
C878. Check
IC801. Checking the
protector circuit.
Check R618 and R615.
D1001 (Power LED Green)
turns on.
Check D758, IC702, D762
and IC753.
Check R701, R707 and
D709.
Normal
Normal
Normal
Normal
Normal Abnormal
Abnormal
Abnormal
NO
NO
NO
YES
ON/YES

14U10/15
14U20/25
20
20-1 20-2
TROUBLE SHOOTING TABLE
(Continued)
NEITHER VERTICAL NOR
HORIZONTAL SYNCHRONIZATION
CIRCUIT TO BE CHECKED:
»Sync. Separator Circuit.
NO VERTICAL SCAN
Vertical Linearity and Size is
abnormal.
Check pins(16), (17) and
(34) of IC801.
DEFECTIVE VERTICAL AMP.
AND VERTICAL LINEARITY
Readjust Vertical size.
(Bas Data)
Check IC501.
Check C503 and C507.
Check IC501.
Check R504, R503, R506,
R513, C517 and D501.
Normal Abnormal
TROUBLE SHOOTING TABLE
(Continued)
NO SPECIFIC COLOUR
Is some colour produced in
B/W broadcast reception ?
Is the white balance properly
adjusted ?
Readjust the white balance.
The picture colour is yellow.
The picture colour is magenta.
The picture colour is cyan.
Check Q871, Q883 and its
adjacent circuits. Check Q870, Q885 and its
adjacent circuits. Check Q872, Q887 and its
adjacent circuits.
Check IC801 and Bias
control circuit.
NO SPECIFIC COLOUR
"PAL"
(NO COLOUR SYNCHRONIZATION)
Check IC801, R801, R802,
R803, D804, D805, D806
and Q801.
Check X1001.(12MHz)
NO
YES
YES
NO
Normal