Sharp CX51K3 User manual

1
CX51K3
CX51K4
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.
SERVICE MANUAL
S30X7CX51K3//
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.
MODELS CX51K3
CX51K4
SHARP CORPORATION
COLOURTELEVISION
Chassis No. UA-1
Page
CONTENTS
»SPECIFICATIONS .............................................2
»IMPORTANT SERVICE NOTES ........................2
»ADJUSTMENT PRECAUTIONS........................3
»UA1 HOTEL MODE APPLICATION.................15
»TROUBLE SHOOTING TABLE ........................16
»SOLID STATE DEVICE BASE DIAGRAM .......18
»CHASSIS LAYOUT ..........................................19
»BLOCK DIAGRAM...........................................21
»WAVEFORMS..................................................24
»DESCRIPTION OF SCHEMATIC DIAGRAM ..25
»SCHEMATIC DIAGRAM
ËREMOTE CONTROL UNIT ..........................25
ËTUNER .........................................................26
Page
ËCRT UNIT.....................................................27
ËHEADPHONE UNIT .....................................27
ËMAIN UNIT (CX51K3) ..................................28
ËMAIN UNIT (CX51K4) ..................................30
»PRINTED WIRING BOARD ASSEMBLIES.....32
»REPLACEMENT PARTS LIST
ËELECTRICAL PARTS
MAIN UNIT ................................................... 37
CRT UNIT.....................................................41
HEADPHONE UNIT .....................................41
ËSUPPLIED ACCESSORIES ........................42
ËPACKING PARTS .........................................42
ËCABINET PARTS .........................................42
FEATURE
ËNTSC (AV thru)
ËFull Auto Channel Preset and Auto Channel Skip
Ë100 CH Program Memory
ËCATV (Hyper Band) Ready
ËAVL (Sound Keeper) Function
ËHigh Contrast Picture (Black Stretch Circuit)
ËON Timer/Sleep Timer/Reminder Timer
ËBlue Back Noise Mute
ËFront AV In and Rear AV In/Out Terminals
ËColour-Comb Filter (NTSC AV In)
ËHotel Mode
ËFront Headphone Jack
ËMulti Laguage OSD (English/Chinese/French/
Arabic/Malay/Russian)
CX51K3 CX51K4

2
CX51K3
CX51K4
2-1 2-2
SPECIFICATIONS
Convergence ................................................................................. Self Converging System
Focus ........................................................................... Electrstatic Focus High Bi-Potential
Sweep Deflection................................................................................................... Magnetic
Intermediate Frequencies
Picture IF Carrier ............................................................................................... 38.9 MHz
Sound IF Carrier Frequency
5.5 MHz .......................................................................................................... 33.4 MHz
Colour Sub-Carrier Frequency ....................................................................... 34.47 MHz
Power Input.................................................................................... AC220 - 240V, 50/60 Hz
Power Consumption
CX51K3 ..................................................................................................................84 W
CX51K4 ..................................................................................................................87 W
Audio Power Output Rating
CX51K3 ................................................................................................. 3.0 W (at Max.)
CX51K4 ................................................................................................. 5.0 W (at Max.)
Speaker
Size
CX51K3 ............................................................................................ 8 cm Round (1 pc)
CX51K4 .................................................................................... 5 ×9 cm Elliptic (2 pcs)
Voice Coil Impedance......................................................................... 16 ohms at 400 Hz
Aerial Input Impedance
VHF/UHF ....................................................................................... 75 ohm Unbalanced
Receiving Channels (PAL-B/G)
»VHF........................................................................................... AU0 thru AU12 ch
»UHF ........................................................................................ AU28 thru AU69 ch
Receiving Frequency
»VHF-Channels .................................................................... 44.25 thru 463.25 MHz
»UHF-Channels ................................................................. 471.25 thru 863.25 MHz
Dimensions
CX51K3 .............................................................................................Width: 499.0 mm
Height: 474.0 mm
Depth: 486.0 mm
Weight (Approx.): 20.0 kg
CX51K4 .............................................................................................Width: 594.0 mm
Height: 465.0 mm
Depth: 484.0 mm
Weight (Approx.): 20.5 kg
Cabinet Material ................................................................................................. All Plastics
Specifications are subject to change without prior notice.
IMPORTANT SERVICE NOTES
Maintenance and repair of this receiver should be done by
qualified service personnel only.
SERVICING OF HIGHVOLTAGE SYSTEM AND
PICTURETUBE
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 following
precautions should be observed:
1. When repairing the circuit, be sure not to increase the high voltage to more
than 28.0 kV (at beam 0 µA) for the set.
2. To keep the set in a normal operation, be sure to make it function on 24.5 kV
±1.5 kV (at beam 1,100 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 unauthorized types and/or brands
which may cause excess X-ray radiation.
BEFORE RETURNINGTHE 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-capacity networks, mechanical insulators and etc.

3
CX51K3
CX51K4
3-1 3-2
ADJUSTMENT PRECAUTIONS
This model’s setting are adjusted in two different ways: though the I2C bus control and in the
conventional analog manner.The adjustments via the I2C bus control include preset-only
items and variable data.
1. Setting the service mode by the microprocessor.
1Make a short-circuit JA122 and JA124 for a second and release to switch to the service
mode position and the microprocessor is in input mode.(Adjustment through the I2C bus
control). (Use JWS Key to set as well).
2Press the CH DOWN / UP key on the remote controller to get ready to select the mode
one by one.
3Press the CH DOWN / UP key on the remote controller to select the modes reversibly
one by one.
4Using the VOLUME UP/ DOWN key on the remote controller, the data can be modified.
5Make a short-circuit JA122 and JA124 for a second and release to switch to the normal
mode (OFF) position and the microprocessor is in out of the service mode.
2. Factory Presetting.
1Make a short-circuit JA122 and JA124 for a 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).
2The initial data are preset as listed in pages 4-6.
3Make 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 make a short-circuit JA122 and JA124 switch to the
service mode position first and then turn on the main power switch.(See 2-1 above).
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)
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
ËSERVICE MODE
(1)In the Service Mode, Key is used to select the mode in the following order.

4
CX51K3
CX51K4
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 SEVECTION (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 CRT (CRT)
↓
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
* While SERVICE mode ON, EEPROM DATA will switch to the service data.
Also, once SERVICE mode OFF, EEPROM will switch back to previous USER DATA.
* In the service mode, the user data establish as below,
MODE USER DATA
CONTRAST MIN (1/60)
COLOUR MIN (1/60)
BRIGHTNESS MIN (1/60)
TINT MIN (1/60)
SHARPNESS MIN (1/60)
WHITE TEMP STANDARD
S-VOLUME MIN (1/60)
BLUE BACK OFF
C SYSTEM AUTO
S SYSTEM *1
*1 : For each CH, before
changing service mode
setting.
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

5
CX51K3
CX51K4
5-1 5-2
After short JA122 & 124, and turn on the main power switch, read data from E2PROM
address 00H ~ 03H, and compare to the list below, if different, initialize the E2PROM.
Address : Data Address : Data
00H : 55H 02H : 43H
01H : 4FH 03H : A1H
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 WARMWHITE 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
WHITE POINT RED COOL WHITE TEMP DRI-RC 0~63 25 FIX (DRI-BS)-7 DATA
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 63 FIX (DRI-BS)SAMEDATA
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 (20) ADJ *1
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 (2) FIX *2
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
Note :
Fixed data, please do not change without specific instruction.
*1: Manually change to "20".
*2: Manually change to "2".
*3: Manually change to "0"
EEPROM ITEMS OSD DATA LENGTH INITIAL DATA FIX/ADJ REMARK
SHARPNESS OFFSET (NTSC358) SHP-O3 0~15 12 FIX
SHARPNESS OFFSET (NTSC443) SHP-O4 0~15 8 FIX
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) 0 FIX
SOUND SYSTEM M S-M 0(DISABLE)/1(ENABLE) 0 FIX
SOUND SYSTEM DK S-DK 0(DISABLE)/1(ENABLE) 0 FIX *3
SOUND SYSTEM I S-I 0(DISABLE)/1(ENABLE) 0 FIX *3
SOUND SYSTEM BG S-BG 0(DISABLE)/1(ENABLE) 1 FIX
PLAYBACK SECAM P-SECAM 0(DISABLE)/1(ENABLE) 1 FIX *3
FE (RF) NTSC 3.58 F-N358 0(DISABLE)/1(ENABLE) 0 FIX
FE (RF) NTSC 4.43 F-N443 0(DISABLE)/1(ENABLE) 1 FIX
FE (RF) SECAM F-SECAM 0(DISABLE)/1(ENABLE) 1 FIX *3
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 FORBTSC SIGNAL BTSC 0(DISABLE)/1(ENABLE) 0 FIX
NUMBER OF EXTERNAL AV SOURCE AV 0 FOR1 AV/1 FOR 2AV 1 FIX
FM WINDOW SELECTION FMWS 0(DISABLE)/1(ENABLE) 0 FIX
SOUND MUTE BIT 0 SM0 0(DISABLE)/1(ENABLE) 1 FIX
SOUND MUTE BIT 1 SM1 0(DISABLE)/1(ENABLE) 0 FIX
THAI LANGUAGE THA 0(DISABLE)/1(ENABLE) 0 FIX
ARABIC LANGUAGE ARA 0(DISABLE)/1(ENABLE) 1 FIX
MALAY LANGUAGE MAL 0(DISABLE)/1(ENABLE) 1 FIX
CHINESE LANGUAGE CHI 0(DISABLE)/1(ENABLE) 1 FIX
FRENCH LANGUAGE FRE 0(DISABLE)/1(ENABLE) 1 FIX
RUSSIAN LANGUAGE RUS 0(DISABLE)/1(ENABLE) 1 FIX
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) 0 FIX
PHI-1 TIME CONSTANT (RF) FOA-FE 0(DISABLE)/1(ENABLE) 0 FIX
PHI-1 TIME CONSTANT (RF) FOB-FE 0(DISABLE)/1(ENABLE) 0 FIX
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

6
CX51K3
CX51K4
6-1 6-2
MCL1 MCL2
CH-No. Fv (MHz) SOUND SYS CH-No. Fv (MHz) SOUND SYS
0 0 590.25 B/G
1 48.25 B/G 1 46.25 B/G
2 62.25 B/G 2 64.25 B/G
3 77.25 D/K 3 86.25 B/G
4 175.25 B/G 4 95.25 B/G
5 182.25 B/G 5 138.25 B/G
6 183.25 D/K 6 175.25 B/G
7 191.25 D/K 7 182.25 B/G
8 196.25 B/G 8 189.25 B/G
9 199.25 M 9 196.25 B/G
10 210.25 B/G 10 209.25 B/G
11 224.25 B/G 11 216.25 B/G
12 471.25 B/G 12
13 487.25 I 13
14 503.25 B/G 14
15 575.25 B/G 15
16 583.25 B/G 16
17 599.25 B/G 17
18 621.25 M 18 527.25 B/G
19 639.25 D/K 19 847.25 B/G
20 703.25 B/G 20 48.25 B/G
21 735.25 I 21 175.25 B/G
22 767.25 B/G 22 210.25 B/G
23 815.25 B/G 23 224.25 B/G
24 855.25 I 24 575.25 B/G
25 855.25 B/G 25 599.25 B/G
26 55.25 M 26 767.25 B/G
27 83.25 M 27 183.25 M
28 183.25 M 28 193.25 M
29 193.25 M 29 112.25 B/G
30 217.25 M 30 168.25 B/G
31 471.25 M 31
32 477.25 M 32 294.25 B/G
33 693.25 M 33 463.25 B/G
34 34 174.95 B/G
35 112.25 B/G 35 175.55 B/G
36 168.25 B/G 36
37 37 599.25 B/G
38 294.25 B/G 38
39 463.25 B/G 39
40 40
41 647.25 B/G 41
42 663.25 B/G 42
43 679.25 B/G 43
44 174.95 B/G
45 175.55 B/G
INITIAL SETTING
(1)In service mode, After execute select POS 1, store the following tuning data in E2PROM. SHIPPING SETTING & CHECKING (1)The following default data has been factory-set for the E2PROM.
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
0 CHANNEL SKIP ON
After pressing "MODEL SETTING", 0 Channel will be skipped.

7
CX51K3
CX51K4
7-1 7-2
PIF ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1
Fig. 1
2 RF-AGC
TAKE OVER
POINT
ADJUSTMENT
(I2C 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 "AG" mode in service mode. Adjust the
"AG" bus data to obtain the Tuner output pin
drop 0.1 V below maximum voltage.
4. Change the antenna input signal to
63~67dBµV, and make sure there is no noise.
5. Turn up the input signal to 90~95 dBµV to be
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 ±1 dBµV(75 ohm
open), instead of 57 ±1 dBµV
(75 ohm open).
Precaution:
The loss of using impedance
adapter
»Bias box: About 4.5 V
Oscilloscope
0.1V
TV Set
Bias box
TP201+
+
–
–
Tuner IFT
(PRESET) 1. Get the tuner ready to receive the E-9 CH 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 to 80dBuV.
4. Connect the response lead (use LOW IMPED-
ANCE probe with wave detector;see Fig.1) to
the tuner's IF output terminal. (This terminal
must have the probe alone connected).
5. Set the RF AGC to 0 - 6 V 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.
E-9 CH
P C
10k
100k
1n60
75ohm
IF OUT
-1.5+/-0.8dB
1000p
Oscilloscope
Fig. 2
Fig. 3
PURITY ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1PURITY ADJ. 1. Receive the GREEN-ONLY signal. Adjust the
beam current to about 700 µA.
2. Degauss the CRT enough with the degausing
coil.
Note: Follow the Job Instruction Sheet to ad-
just the magnetic field.
Vertical Bv : -0.050 mT
(-0.50 gauss)
Horizontal Bh : +0.020 mT
(0.20 gauss)
3. Maintain the purity magnet at the zero
magnetic field and keep the static convergence
roughly adjusted.
4. Observe the points a, b as shown in Fig. 4-1
through the microscope.Adjust the landing to
the rank A requirements.
5. Orient the raster rotation to 0 eastward.
6. Tighten up the deflection coil screws.
»Tightening torque: 108 ± 20 N (11 ±2 kgf)
7. 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
700 µA.
Note: Set the service mode by JA122 &
JA124 (short) then press factory proc-
ess R/C RGB key to change to RGB
mono colour mode.
* For the following colours press R/C RGB key
to change.
* Press R/C RGB key for 1 second
in NORMAL MODE, the colour
will change to RGB mono colour
mode.
TheTEXT Key"R.G.Cy" Key can
be directly use to change to other
colours screen.
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)
Green-only Blue-only Red-only
Signal-colour
screen cleared
Fig. 4-1
Fig. 4-2
Fig. 4-3

8
CX51K3
CX51K4
8-1 8-2
RGB
BGR
R
G
B
R
G
B
B
G
R
B
G
R
RGB
BGR
Lacquer
Wedge "a"
Wedge
"b" Wedge
"c"
About
100°
About
100°
4-pole magnet
6-pole magnet
CRT neck
Lacquer
Purity magnet
20 mm
CONVERGENCE ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1 CONVERGENCE
ADJ.
(To be done
after the purity
adjustment.)
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
angle in order to superpose the blue and red
colours.
2. Turn the 6-pole magnet to a proper opening
angle 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. 5-1:Drive the wedge at point "a" and
swing the deflection coil upward.
b) Fig. 5-2: Drive the wedge at points "b"
and "c" and swing the deflection coil
downward.
c) Fig. 5-3:Drive the "c" wedge deeper and
swing the deflection coil rightward.
d) Fig. 5-4: 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
signals to make sure there is no other colours
on the screen.
Fig. 5-2
Fig. 5-1
Fig. 5-3
Fig. 5-4
Fig. 5-5
Fig. 5-6
1. Call "SUB-BRI" in service mode. (Receive
Crosshatch 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
wherelse line 4 is slightly brighter than line 1,
2 and 3 and finally line 5 will be the brighter
than line 4.
1. Switch TV toVIDEO mode, BLUE BACK OFF
with NO VIDEO signal.
2. Press R/C to set Picture Normal condition.
3. Connect the oscilloscope to Red OUT from
IC801.(TP852)
Range : 1 V/Div (DC)
Sweep : 5 msec/Div
4. Adjust SCREEN VR, so that the tip of signal
reach 3.0 +0.1 Vdc.
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1
2 SUB-
BRIGHTNESS
ADJUSMENT
(I2C BUS
CONTROL)
1, 2 and 3 are in same black level.
CRT CUTOFF
ADJUSTMENT
(I2C BUS
CONTROL)
Fig. 6
3 WHITE
BALANCE
SERVICE
MODE ADJ.
(I2C 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 the
TP602 (-) andTP603 (+).
4. CheckBeam current shouldbearound 1,100 µA.
5. Set it to service mode and adjust the " WPG"
(White Point-G), "WPB" (White Point-B) data
to have a colour temperature of 12,300°K
(white). * Note .
6. Receive"White"pattern,withBURST Signal,and
set Brightness Y by generator, to ** 10 cd/m2
(Minolta CA-100) by reducing LuminateY signal.
7. Adjust"CUT-R"&"CUT-G"to get12,300°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
700µA.
* Adjust DRI-GC/GW, DR-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/m2: High=120cd/m2
* 12,300°K X : 0.272
Y : 0.275
(MINOLTA COLOUR ANALYZER
CA-100)
*Note: Above Data can be UP/
DOWN byVolume key.
4 Maximum
beam check 1. Receive the "Monoscope Pattern" signal. 2. Press R/C to set Picture NORMAL condition.
3. Connect the DC miliammeter between TP603
(+) andTP602 (–).
(Full Scale: 3 mA Range)
4. Beam current must be within 1,100 ±100 µA.
1 V
3.0Vdc
0
1 2 3 4 5
Fig. 7

9
CX51K3
CX51K4
9-1 9-2
HORIZONTAL ANDVERTICAL DEFLECTION LOOP ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1
2
3
4
5
6
V-LINEARITY
(I2C BUS
CONTROL)
V-CENTER
(I2C BUS
CONTROL)
V - AMP
(I2C BUS
CONTROL)
S-CORREC-
TION (I2C
BUS CON-
TROL)
H - CENTER
SUB-
SHARPNESS
1. Receive Monoscope Pattern Signal.
2. Call the "V-LIN" mode.
3. Increase or decrease "V-LIN" byVolume 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" byVolume key
till the picture is centered.
1. Call the "V-AMP" mode.
2. Increase or decrease "V- AMP" byVolume key
to set overscan of 9.5% typical.
Adjustment Spec 9.5% range +1% -0%.
FIXED DATA, NO NEEDTO ADJUST.
1. Call the "H-CENT" mode.
2. Increase or decrease"H-CENT"byVolume key
to center the picture horizontal.
1. Call the "SUB-SHP" mode.
2. Set "SUB-SHP"to20 bypressingVolumedown
key.
PAL CHROMA ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1SUB COLOUR
(I2C BUS
CONTROL)
1. Receive the "PAL Colour Bar" signal.
2. Press R/C to set Picture Normal condition.
3. Connect the oscilloscope to Red cathode
(C881 and R885).
»Range :20 V/div.(AC) (Use 10:1 probe)
»Sweep time : 10 µsec/div.
4. Using the R/C call "SUB COL" in SERVICE
mode.Adjust SUB COLOUR bus data, so that
the 75% White & Red portions of PAL Colour
Bar be at the same level shown as Fig. 8.
5. Clear the SERVICE mode.
7 Focus
adjustment 1. Receive the "Monoscope Pattern" signal. 2. Press R/C to set Picture NORMAL condition.
3. Adjust the focus control to get the best focus.
Cy GB
WY 100%W
75% Mg R
Fig. 8
NTSC CHROMA ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1 SUB-TINT
(I2C BUS
CONTROL)
1. Receive the "NTSC3.58 Colour Bar" signal
through AV in.
2. Connect the oscilloscope to TP853 (Pin (5) of
P882) BLUE-OUT.
»Range :100mV/div.(AC)(UseProbe10:1)
»Sweep time: 10 µsec/div.
3. Call the "SUB-TINT" mode in service mode.
Adjust the "SUB-TINT" bus data to obtain the
waveform shown as Fig. 9.
4. Clear the SERVICE mode.
PROTECTOR OPERATION CHECKING
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1 BEAM
PROTECTOR 1. Receive "Monoscope Pattern" signal. 2. Set CONTRAST MAX.
3. Set BRIGHT MAX.
4. During the Collector & Emitter of Q883/5/7
short, make sure the protector ON and switch
to standby mode.
* Select one of Q883/5/7 to do
each short test.
2H,V
PROTECTOR 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.
A/V INPUT AND OUTPUT CHECKING
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1VIDEO AND
AUDIO OUT-
PUT CHECK
1. Receive the "PAL Colour Bar" signal (100%
White Color Bar, Sound 400 Hz 100% Mod.)
2. Terminate theVideo output with a 75 ohm im-
pedance.Make sure the output is as specified
(1.0Vp-p ±3 dB).
3. Terminate the Audio output with a 10k ohm im-
pedance.Make sure the output is as specified
(1.76Vp-p ±3 dB).
2 VIDEO AND
AUDIO INPUT
CHECK
1. Using the TV/AV key on the remote controller,
make sure that the modes change in order of
TV, AV1, AV2 & TV again and the video & audio
output are according to the input terminal for
each mode.
3 Other
protectors 1. Oncefinish rectifiedElectrolyticCapacitor short testing in +B line, check all possible damaged
components on +B line.
(Use random selected set for inspection)
Fig. 9
W
SAME LEVEL
YCy G Mg R B

10
CX51K3
CX51K4
10-1 10-2
FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1
2 COLOUR key 1. Receive "Colour 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.
CONTRAST
key 1. Receive "Monoscope Pattern" signal. 2. Set P-Mode to select CONTRAST.
3. Press Volume Up/Down key to check whether
the CONTRAST effect is OK or not.
3 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
4 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 checkTINT, UP
for GREEN direction and DOWN for PURPLE
direction whether is OK or not.
5 SHARPNESS
Key 1. Receive "Monoscope Pattern" signal. 2. Set P-mode to select SHARPNESS.
3. Press Volume Up/Down key to check whether
the SHARPNESS effect is OK or not.
6 CH DISPLAY
COLOUR 1. All Ch (1~99) will have an OSD display of the channel number in green colour under AFT ON
condition.
7 NORMAL Key 1. Once in PICTURE Mode, and the NORMAL
key is pressed, all the settings will be present
to normal setting.
(Normal setting value for every mode).
»CONTRAST : MAX
»COLOUR : CENTER
»BRIGHTNESS : CENTER
»TINT : CENTER
»SHARPNESS : CENTER
Note:If nothing is display mean
contrast,colour,bright,tint
or sharpness are all in nor-
mal setting.
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 direction changing.
FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
(Continued)
NO. Adjustment part Adjusting procedure and conditions Waveform and others
9Colour
system 1. Receivethe"PAL COLOUR BAR" signal,press
the COLOUR SYSTEM key to select modes
except PAL, check the COLOUR is not working
properly.Then, select the "PAL" mode. Check
again its colour so that it is working properly.
2. Receive "NTSC 4.43" signal, press COLOUR
SYSTEM key to select modes except NTSC
4.43, check the COLOUR is not working
properly.Then, select the "NTSC 4.43" mode.
Check again its colour so that it is working
properly.
3. Receive "NTSC 4.43/3.58 COLOUR BAR" sig-
nal thru AV, press COLOUR SYSTEM key to
select modes except N4.43/3.58, check the
COLOUR is not working properly.Then, select
the "NTSC 4.43/3.58" mode. Check again its
colour so that it is working properly.
10 NOISE MUTE
CHECKING 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.
11 OSD
LANGUAGE
QUANTITY
CHECK
Check OSD LANGUAGE quantity and type as
English, Russian, Chinese, French, Arabic and
Malay.

11
CX51K3
CX51K4
11-1 11-2
MEMORY MAP
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 (WARM) 20 00-3F
1A DRIVE-G (WARM) 20 00-3F
1B DRIVE-B (WARM) 20 00-3F
1C DRIVE-R (COOL) 19 00-3F
1D DRIVE-G (COOL) 20 00-3F
1E DRIVE-B (COOL) 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-POSITION FF 00-FF
2A
2B
2C
2D OSD-REFERENCE 0F 00-0F
2E CUTOFF LEVEL -OFFSET R 08 00-0F
2F CUTOFF LEVEL -OFFSET B 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-DELAY (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) 0C 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 (N443) 04 00-0F
3E COLOUR-OFFSET (N358) 04 00-0F
3F SHARPNESS-OFFSET (PAL) 08 00-0F
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS DATA MICO EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK
HEADPHONE JACK CHECKING
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1 HEADPHONE
OUTPUT
CHECKING
1. Receive PAL COLOUR PAR with SOUND
400Hz, 100% MODULATION (±50kHz Dev).
2. Maximum volume, and check the headphone
output with 400Hz sound and no sound out
from speaker.

12
CX51K3
CX51K4
12-1 12-2
80 TUNING FREQUANCY (HIGHER PART) POS 4
81 TUNING FREQUANCY (LOWER PART)
82 S-SYS AFT (auto) C-SYS
83 TUNING FREQUANCY (HIGHER PART) POS 5
84 TUNING FREQUANCY (LOWER PART)
85 S-SYS AFT (auto) C-SYS
86 TUNING FREQUANCY (HIGHER PART) POS 6
87 TUNING FREQUANCY (LOWER PART)
88 S-SYS AFT (auto) C-SYS
89 TUNING FREQUANCY (HIGHER PART) POS 7
8A TUNING FREQUANCY (LOWER PART)
8B S-SYS AFT (auto) C-SYS
8C TUNING FREQUANCY (HIGHER PART) POS 8
8D TUNING FREQUANCY (LOWER PART)
8E S-SYS AFT (auto) C-SYS
8F TUNING FREQUANCY (HIGHER PART) POS 9
90 TUNING FREQUANCY (LOWER PART)
91 S-SYS AFT (auto) C-SYS
92 TUNING FREQUANCY (HIGHER PART) POS 10
93 TUNING FREQUANCY (LOWER PART)
94 S-SYS AFT (auto) C-SYS
95 TUNING FREQUANCY (HIGHER PART) POS 11
96 TUNING FREQUANCY (LOWER PART)
97 S-SYS AFT (auto) C-SYS
98 TUNING FREQUANCY (HIGHER PART) POS 12
99 TUNING FREQUANCY (LOWER PART)
9A S-SYS AFT (auto) C-SYS
9B TUNING FREQUANCY (HIGHER PART) POS 13
9C TUNING FREQUANCY (LOWER PART)
9D S-SYS AFT (auto) C-SYS
9E TUNING FREQUANCY (HIGHER PART) POS 14
9F TUNING FREQUANCY (LOWER PART)
A0 S-SYS AFT (auto) C-SYS
A1 TUNING FREQUANCY (HIGHER PART) POS 15
A2 TUNING FREQUANCY (LOWER PART)
A3 S-SYS AFT (auto) C-SYS
A4 TUNING FREQUANCY (HIGHER PART) POS 16
A5 TUNING FREQUANCY (LOWER PART)
A6 S-SYS AFT (auto) C-SYS
A7 TUNING FREQUANCY (HIGHER PART) POS 17
A8 TUNING FREQUANCY (LOWER PART)
A9 S-SYS AFT (auto) C-SYS
AA TUNING FREQUANCY (HIGHER PART) POS 18
AB TUNING FREQUANCY (LOWER PART)
AC S-SYS AFT (auto) C-SYS
AD TUNING FREQUANCY (HIGHER PART) POS 19
AE TUNING FREQUANCY (LOWER PART)
AF S-SYS AFT (auto) C-SYS
B0 TUNING FREQUANCY (HIGHER PART) POS 20
B1 TUNING FREQUANCY (LOWER PART)
B2 S-SYS AFT (auto) C-SYS
B3 TUNING FREQUANCY (HIGHER PART) POS 21
B4 TUNING FREQUANCY (LOWER PART)
B5 S-SYS AFT (auto) C-SYS
B6 TUNING FREQUANCY (HIGHER PART) POS 22
B7 TUNING FREQUANCY (LOWER PART)
B8 S-SYS AFT (auto) C-SYS
B9 TUNING FREQUANCY (HIGHER PART) POS 23
BA TUNING FREQUANCY (LOWER PART)
BB S-SYS AFT (auto) C-SYS
BC TUNING FREQUANCY (HIGHER PART) POS 24
BD TUNING FREQUANCY (LOWER PART)
BE S-SYS AFT (auto) C-SYS
BF TUNING FREQUANCY (HIGHER PART) POS 25
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS DATA MICO EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK
40 SHARPNESS-OFFSET (SECAM) 04 00-0F
41
SHARPNESS-OFFSET (N443) 0C 00-0F
42
SHARPNESS-OFFSET (N358) 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 FREQUANCY (HIGHER PART) S-SYS POS 0
75 TUNING FREQUANCY (LOWER PART) 000:BG
76
S-SYS AFT (auto) C-SYS 001:I
77
TUNING FREQUANCY (HIGHER PART) O1O:DK POS 1
78 TUNING FREQUANCY (LOWER PART) 011:M
79
S-SYS AFT (auto) C-SYS
7A TUNING FREQUANCY (HIGHER PART) AFT POS 2
7B TUNING FREQUANCY (LOWER PART) 0:OFF
7C
S-SYS AFT (auto) C-SYS 1:ON
7D
TUNING FREQUANCY (HIGHER PART) POS 3
7E TUNING FREQUANCY (LOWER PART)
7F S-SYS AFT (auto) C-SYS
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS
DATA
MICO EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0
DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPECHECK DATA CHECK TYPE
SETTING DATA
REMARK

13
CX51K3
CX51K4
13-1 13-2
100 POS 46
101 TUNING FREQUANCY (HIGHER PART) POS 47
102 TUNING FREQUANCY (LOWER PART)
103 S-SYS AFT (auto) C-SYS
104 TUNING FREQUANCY (HIGHER PART) POS 48
105 TUNING FREQUANCY (LOWER PART)
106 S-SYS AFT (auto) C-SYS
107 TUNING FREQUANCY (HIGHER PART) POS 49
108 TUNING FREQUANCY (LOWER PART)
109 S-SYS AFT (auto) C-SYS
10A TUNING FREQUANCY (HIGHER PART) POS 50
10B TUNING FREQUANCY (LOWER PART)
10C S-SYS AFT (auto) C-SYS
10D TUNING FREQUANCY (HIGHER PART) POS 51
10E TUNING FREQUANCY (LOWER PART)
10F S-SYS AFT (auto) C-SYS
110 TUNING FREQUANCY (HIGHER PART) POS 52
111 TUNING FREQUANCY (LOWER PART)
112 S-SYS AFT (auto) C-SYS
113 TUNING FREQUANCY (HIGHER PART) POS 53
114 TUNING FREQUANCY (LOWER PART)
115 S-SYS AFT (auto) C-SYS
116 TUNING FREQUANCY (HIGHER PART) POS 54
117 TUNING FREQUANCY (LOWER PART)
118 S-SYS AFT (auto) C-SYS
119 TUNING FREQUANCY (HIGHER PART) POS 55
11A TUNING FREQUANCY (LOWER PART)
11B S-SYS AFT (auto) C-SYS
11C TUNING FREQUANCY (HIGHER PART) POS 56
11D TUNING FREQUANCY (LOWER PART)
11E S-SYS AFT (auto) C-SYS
11F TUNING FREQUANCY (HIGHER PART) POS 57
120 TUNING FREQUANCY (LOWER PART)
121 S-SYS AFT (auto) C-SYS
122 TUNING FREQUANCY (HIGHER PART) POS 58
123 TUNING FREQUANCY (LOWER PART)
124 S-SYS AFT (auto) C-SYS
125 TUNING FREQUANCY (HIGHER PART) POS 59
126 TUNING FREQUANCY (LOWER PART)
127 S-SYS AFT (auto) C-SYS
128 TUNING FREQUANCY (HIGHER PART) POS 60
129 TUNING FREQUANCY (LOWER PART)
12A S-SYS AFT (auto) C-SYS
12B TUNING FREQUANCY (HIGHER PART) POS 61
12C TUNING FREQUANCY (LOWER PART)
12D S-SYS AFT (auto) C-SYS
12E TUNING FREQUANCY (HIGHER PART) POS 62
12F TUNING FREQUANCY (LOWER PART)
130 S-SYS AFT (auto) C-SYS
131 TUNING FREQUANCY (HIGHER PART) POS 63
132 TUNING FREQUANCY (LOWER PART)
133 S-SYS AFT (auto) C-SYS
134 TUNING FREQUANCY (HIGHER PART) POS 64
135 TUNING FREQUANCY (LOWER PART)
136 S-SYS AFT (auto) C-SYS
137 TUNING FREQUANCY (HIGHER PART) POS 65
138 TUNING FREQUANCY (LOWER PART)
139 S-SYS AFT (auto) C-SYS
13A TUNING FREQUANCY (HIGHER PART) POS 66
13B TUNING FREQUANCY (LOWER PART)
13C S-SYS AFT (auto) C-SYS
13D TUNING FREQUANCY (HIGHER PART) POS 67
13E TUNING FREQUANCY (LOWER PART)
13F S-SYS AFT (auto) C-SYS
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS DATA MICO EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK
C0 TUNING FREQUANCY (LOWER PART) POS 25
C1 S-SYS AFT (auto) C-SYS
C2 TUNING FREQUANCY (HIGHER PART) POS 26
C3 TUNING FREQUANCY (LOWER PART)
C4 S-SYS AFT (auto) C-SYS
C5 TUNING FREQUANCY (HIGHER PART) POS 27
C6 TUNING FREQUANCY (LOWER PART)
C7 S-SYS AFT (auto) C-SYS
C8 TUNING FREQUANCY (HIGHER PART) POS 28
C9 TUNING FREQUANCY (LOWER PART)
CA S-SYS AFT (auto) C-SYS
CB TUNING FREQUANCY (HIGHER PART) POS 29
CC TUNING FREQUANCY (LOWER PART)
CD S-SYS AFT (auto) C-SYS
CE TUNING FREQUANCY (HIGHER PART) POS 30
CF TUNING FREQUANCY (LOWER PART)
D0 S-SYS AFT (auto) C-SYS
D1 TUNING FREQUANCY (HIGHER PART) POS 31
D2 TUNING FREQUANCY (LOWER PART)
D3 S-SYS AFT (auto) C-SYS
D4 TUNING FREQUANCY (HIGHER PART) POS 32
D5 TUNING FREQUANCY (LOWER PART)
D6 S-SYS AFT (auto) C-SYS
D7 TUNING FREQUANCY (HIGHER PART) POS 33
D8 TUNING FREQUANCY (LOWER PART)
D9 S-SYS AFT (auto) C-SYS
DA TUNING FREQUANCY (HIGHER PART) POS 34
DB TUNING FREQUANCY (LOWER PART)
DC S-SYS AFT (auto) C-SYS
DD TUNING FREQUANCY (HIGHER PART) POS 35
DE TUNING FREQUANCY (LOWER PART)
DF S-SYS AFT (auto) C-SYS
E0 TUNING FREQUANCY (HIGHER PART) POS 36
E1 TUNING FREQUANCY (LOWER PART)
E2 S-SYS AFT (auto) C-SYS
E3 TUNING FREQUANCY (HIGHER PART) POS 37
E4 TUNING FREQUANCY (LOWER PART)
E5 S-SYS AFT (auto) C-SYS
E6 TUNING FREQUANCY (HIGHER PART) POS 38
E7 TUNING FREQUANCY (LOWER PART)
E8 S-SYS AFT (auto) C-SYS
E9 TUNING FREQUANCY (HIGHER PART) POS 39
EA TUNING FREQUANCY (LOWER PART)
EB S-SYS AFT (auto) C-SYS
EC TUNING FREQUANCY (HIGHER PART) POS 40
ED TUNING FREQUANCY (LOWER PART)
EE S-SYS AFT (auto) C-SYS
EF TUNING FREQUANCY (HIGHER PART) POS 41
F0 TUNING FREQUANCY (LOWER PART)
F1 S-SYS AFT (auto) C-SYS
F2 TUNING FREQUANCY (HIGHER PART) POS 42
F3 TUNING FREQUANCY (LOWER PART)
F4 S-SYS AFT (auto) C-SYS
F5 TUNING FREQUANCY (HIGHER PART) POS 43
F6 TUNING FREQUANCY (LOWER PART)
F7 S-SYS AFT (auto) C-SYS
F8 TUNING FREQUANCY (HIGHER PART) POS 44
F9 TUNING FREQUANCY (LOWER PART)
FA S-SYS AFT (auto) C-SYS
FB TUNING FREQUANCY (HIGHER PART) POS 45
FC TUNING FREQUANCY (LOWER PART)
FD S-SYS AFT (auto) C-SYS
FE POS 46
FF MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS DATA MICO EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK

14
CX51K3
CX51K4
14-1 14-2
180 POS 89
181
182 TUNING FREQUANCY (HIGHER PART) POS 90
183 TUNING FREQUANCY (LOWER PART)
184 S-SYS AFT (auto) C-SYS
185 TUNING FREQUANCY (HIGHER PART) POS 91
186 TUNING FREQUANCY (LOWER PART)
187 S-SYS AFT (auto) C-SYS
188 TUNING FREQUANCY (HIGHER PART) POS 92
189 TUNING FREQUANCY (LOWER PART)
18A S-SYS AFT (auto) C-SYS
18B TUNING FREQUANCY (HIGHER PART) POS 93
18C TUNING FREQUANCY (LOWER PART)
18D S-SYS AFT (auto) C-SYS
18E TUNING FREQUANCY (HIGHER PART) POS 94
18F TUNING FREQUANCY (LOWER PART)
190 S-SYS AFT (auto) C-SYS
191 TUNING FREQUANCY (HIGHER PART) POS 95
192 TUNING FREQUANCY (LOWER PART)
193 S-SYS AFT (auto) C-SYS
194 TUNING FREQUANCY (HIGHER PART) POS 96
195 TUNING FREQUANCY (LOWER PART)
196 S-SYS AFT (auto) C-SYS
197 TUNING FREQUANCY (HIGHER PART) POS 97
198 TUNING FREQUANCY (LOWER PART)
199 S-SYS AFT (auto) C-SYS
19A TUNING FREQUANCY (HIGHER PART) POS 98
19B TUNING FREQUANCY (LOWER PART)
19C S-SYS AFT (auto) C-SYS
19D TUNING FREQUANCY (HIGHER PART) POS 99
19E TUNING FREQUANCY (LOWER PART)
19F S-SYS AFT (auto) C-SYS
1A0 AV1
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 MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS DATA MICO EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK
140 TUNING FREQUANCY (HIGHER PART) POS 68
141 TUNING FREQUANCY (LOWER PART)
142 S-SYS AFT (auto) C-SYS
143 TUNING FREQUANCY (HIGHER PART) POS 69
144 TUNING FREQUANCY (LOWER PART)
145 S-SYS AFT (auto) C-SYS
146 TUNING FREQUANCY (HIGHER PART) POS 70
147 TUNING FREQUANCY (LOWER PART)
148 S-SYS AFT (auto) C-SYS
149 TUNING FREQUANCY (HIGHER PART) POS 71
14A TUNING FREQUANCY (LOWER PART)
14B S-SYS AFT (auto) C-SYS
14C TUNING FREQUANCY (HIGHER PART) POS 72
14D TUNING FREQUANCY (LOWER PART)
14E S-SYS AFT (auto) C-SYS
14F TUNING FREQUANCY (HIGHER PART) POS 73
150 TUNING FREQUANCY (LOWER PART)
151 S-SYS AFT (auto) C-SYS
152 TUNING FREQUANCY (HIGHER PART) POS 74
153 TUNING FREQUANCY (LOWER PART)
154 S-SYS AFT (auto) C-SYS
155 TUNING FREQUANCY (HIGHER PART) POS 75
156 TUNING FREQUANCY (LOWER PART)
157 S-SYS AFT (auto) C-SYS
158 TUNING FREQUANCY (HIGHER PART) POS 76
159 TUNING FREQUANCY (LOWER PART)
15A S-SYS AFT (auto) C-SYS
15B TUNING FREQUANCY (HIGHER PART) POS 77
15C TUNING FREQUANCY (LOWER PART)
15D S-SYS AFT (auto) C-SYS
15E TUNING FREQUANCY (HIGHER PART) POS 78
15F TUNING FREQUANCY (LOWER PART)
160 S-SYS AFT (auto) C-SYS
161 TUNING FREQUANCY (HIGHER PART) POS 79
162 TUNING FREQUANCY (LOWER PART)
163 S-SYS AFT (auto) C-SYS
164 TUNING FREQUANCY (HIGHER PART) POS 80
165 TUNING FREQUANCY (LOWER PART)
166 S-SYS AFT (auto) C-SYS
167 TUNING FREQUANCY (HIGHER PART) POS 81
168 TUNING FREQUANCY (LOWER PART)
169 S-SYS AFT (auto) C-SYS
16A TUNING FREQUANCY (HIGHER PART) POS 82
16B TUNING FREQUANCY (LOWER PART)
16C S-SYS AFT (auto) C-SYS
16D TUNING FREQUANCY (HIGHER PART) POS 83
16E TUNING FREQUANCY (LOWER PART)
16F S-SYS AFT (auto) C-SYS
170 TUNING FREQUANCY (HIGHER PART) POS 84
171 TUNING FREQUANCY (LOWER PART)
172 S-SYS AFT (auto) C-SYS
173 TUNING FREQUANCY (HIGHER PART) POS 85
174 TUNING FREQUANCY (LOWER PART)
175 S-SYS AFT (auto) C-SYS
176 TUNING FREQUANCY (HIGHER PART) POS 86
177 TUNING FREQUANCY (LOWER PART)
178 S-SYS AFT (auto) C-SYS
179 TUNING FREQUANCY (HIGHER PART) POS 87
17A TUNING FREQUANCY (LOWER PART)
17B S-SYS AFT (auto) C-SYS
17C TUNING FREQUANCY (HIGHER PART) POS 88
17D TUNING FREQUANCY (LOWER PART)
17E S-SYS AFT (auto) C-SYS
17F POS 89
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS DATA MICO EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK

15
CX51K3
CX51K4
15-1 15-2
UA1 HOTEL MODE APPLICATION
How to enable/disable the "Hotel Mode" ?
Ans: a) Press the R/C (FUNCTION) key until language selection appear, within five second
press the (one/two digit) key and keep pressing it for five second, then you can see
the hotel mode with four digits password.
b) Key in the four digits password starting with number "1", "3", "7", "9", then the hotel
mode will be enable, you can switch on/off the hotel mode by using R/C (volume up/
down) key.
* We recommend
Before set the hotel mode, it is better to choose ch 1 & set s-vol level Up to 75% full scale.
After set hotel mode, starting channel will be always ch 1 & maximum sound level out will
be set the half of full scale.
* If you set hotel mode in AV, starting channel will be the last ch which you received before
power off (same as normal operation)
CONDITION:
When using hotel mode, user can control "contrast", "brightness", "sharpness" and "tint"
function.
But after power off, it will return to the initial setting.
You can't use:--
Preset mode
Fine tuning
Skip mode
System selection
The others function is allowed to be used.
#1 Ch 1 is your selected
channel for hotel mode.
Input 1, 3, 7 and 9 by R/C key.
Set vol up/down by R/C key.
HOTEL ON
PASSWORD ****
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 MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS DATA MICO EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK

16
CX51K3
CX51K4
16-1 16-2
TROUBLE SHOOTINGTABLE
NO RASTER
Blown out.
Replace the fuse.
Check IC701, D701 and
C707.
Abnormal
YES
NO
ON/OFF ON
NO
Abnormal Normal
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.
Normal
Check Secondary Main+B
(Approx. 115V)
Normal
Normal Abnormal
Normal
Check CRT connector
K1-K5 bias.
Check
IC801.
Check
C878. Checking the
protector circuit.
Check R615 and R618.
D1001 (Power LED Green)
turns on.
Check IC702, IC753, D758
and D762.
Check R701, R707 and
D709.
TROUBLE SHOOTINGTABLE (Continued)
NO PICTURE, NO SOUND
Does noise signal appear at
pin (44) of IC801 ?
NO SOUND
No snow noise.
Does noise or 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 noise or
signal appear at
pin (38) of IC801 ?
Check IC801 and
its related circuit.
Check Q205 and
related circuit.
Check pin (1) of
SF201, Tuner and
related circuit.
Check pin (37) of
IC801 and related
circuit.
Check C356
and peripheral
circuit.
Check pin (27) of
IC801, Tuner and
related circuit.
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, P302, IC301
and peripheral circuit. Check Q301, pins (4) and (6)
of IC801 and peripheral
circuit.
Does signal appear at pins (28)
of IC801?
AbnormalNormal
Normal
YES
YES
YES
YES
(Signal)
YES
NO
NO
NO
NO
NO
Check pin (38) of
IC801.
Check IC801.

17
CX51K3
CX51K4
17-1 17-2
TROUBLE SHOOTINGTABLE (Continued)
NEITHER VERTICAL NOR
HORIZONTAL SYNCHRONIZATION
CIRCUIT TO BE CHECKED:
»Sync. Separator Circuit.
NO VERTICAL SCAN
Check R504, R503, R506,
R513, C517 and D501.
DEFECTIVE VERTICAL AMP.
AND VERTICAL LINEARITY
Readjust vertical size.
(Bus Data)
Check pins (16), (17) and
(34) of IC801.
Check IC501.Check C503 and C507.
Check IC501 bias.
Normal Abnormal
Vertical linearity and size
abnormal.
TROUBLE SHOOTINGTABLE (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.
Normal
NO SPECIFIC COLOUR
“PAL”
(NO COLOUR SYNCHRONIZATION)
NO YES
YES
NO
Check IC801, R801, R802,
R803, D804, D805, D806
and Q801.
Check X1001(12 MHz).

18
CX51K3
CX51K4
M24C04W FX0008GE D601A B709A
85
14
IX3368CE
64 33
132
43
12
2SA1015
2SC1815 2SC2482 PST573J DX0386CE
BASE
COLLECTOR
EMITTER
BASE
COLLECTOR
EMITTER
BCE
KA7808
KA7805
123
ANODE
(RED)
CATHODE
(COMMON)
ANODE
(GREEN)
123
SE115N
STRF6654
TDA7056A
PX0423CE
2SD2586
112
+ ~ ~ -
2R :BR:
COLLECTOR COLLECTOR
BASE EMITTER
2SC2735
JC
COLLECTOR
BASE EMITTER
BASE EMITTER
18
LA7016
13
TA48M033 135
24 9
TDA8357
BC
E
TF321S
SOLID STATE DEVICE BASE DIAGRAM
TOP VIEW
SIDEVIEW

19
654321
A
B
C
D
E
F
G
H
CX51K3
CX51K4
MODEL CX51K3 CHASSIS LAYOUT

20
654321
A
B
C
D
E
F
G
H
CX51K3
CX51K4
MODEL CX51K4 CHASSIS LAYOUT
P1002