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CX34K3
SERVICE MANUAL
S10V9CX34K3//
COLOUR TELEVISION
Chassis No. UA-1
MODEL
CX34K3
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
Ë Ë Ë Ë NTSC (AV thru) Full Auto Channel Preset and Auto Channel Skip 100 CH Program Memory CATV (Hyper Band) Ready Use Frequency Synthesizer Tuner Ë AVL (Sound Keeper) Function Ë High Contrast Picture (Black Stretch Circuit) Ë ON Timer/Sleep Timer/Reminder Timer Ë Ë Ë Ë Ë Ë Blue Back Noise Mute Front AV In and Rear AV In/Out Terminals Colour-Comb Filter (NTSC AV In) Hotel Mode Front Headphone Jack Multi Language OSD (English/Chinese/French/ Arabic/Malay/Russian)
CONTENTS
» » » » » » » » » » » Page 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 ........................................... 20 WAVEFORMS .................................................. 23 DESCRIPTION OF SCHEMATIC DIAGRAM .. 24 SCHEMATIC DIAGRAM Ë REMOTE CONTROL UNIT .......................... 24 Ë TUNER ......................................................... 25 Page Ë MAIN UNIT ................................................... 26 Ë CRT UNIT ..................................................... 28 Ë HEADPHONE UNIT ..................................... 28 » PRINTED WIRING BOARD ASSEMBLIES ..... 29 » REPLACEMENT PARTS LIST Ë ELECTRICAL PARTS MAIN UNIT ................................................... 34 CRT UNIT ..................................................... 38 HEADPHONE UNIT ..................................... 38 Ë SUPPLIED ACCESSORIES ........................ 39 Ë PACKING PARTS ......................................... 39 Ë CABINET PARTS ......................................... 39
WARNING
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user serviceable parts inside. Refer servicing to qualified service personnel.
SHARP CORPORATION 1
CX34K3
SPECIFICATIONS
Convergence ................................................................................. Self Converging System Focus .................................................................................... Quadra-Potential Electrostatic 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 ..................................................................................................... 65 W Audio Power Output Rating ......................................................................... 3.0 W (at Max.) Speaker Size ............................................................................................... 5 × 9 cm Elliptic (1 pc) Voice Coil Impedance ......................................................................... 16 ohms at 400 Hz Aerial Input Impedance VHF/UHF ....................................................................................... 75 ohm Unbalanced Receiving Channels (PAL-B/G) » VHF ........................................................................................... AU0 NZ1 » UHF ........................................................................................ AU28
IMPORTANT SERVICE NOTES
Maintenance and repair of this receiver should be done by qualified service personnel only.
SERVICING OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE
When servicing the high voltage system, remove static charge from it by connecting a 10k ohm Resistor in series with an insulated wire (such as a test probe) between picture tube dag and 2nd anode lead. (AC line cord should be disconnected from AC outlet.) 1. Picture tube in this receiver employs integral implosion protection. 2. Replace with tube of the same type number for continued safety. 3. Do not lift picture tube by the neck. 4. Handle the picture tube only when wearing shatterproof goggles and after discharging 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 23.5 kV (at beam 0 µA) for the set. 2. To keep the set in a normal operation, be sure to make it function on 22.0 kV ±1.5 kV (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 unauthorized types and/or brands which may cause excess X-ray radiation.
2
thru thru thru
AU12 ch NZ11 ch AU69 ch
Receiving Frequency » VHF-Channels .................................................................... 44.25 thru 463.25 MHz » VHF-Channels .................................................................. 471.25 thru 863.25 MHz Dimensions .............................................................................................. Width: Height: Depth: Weight (Approx.): Cabinet Material ................................................................................................. 357.0 mm 361.0 mm 369.0 mm 9.2 kg All Plastics
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-capacity networks, mechanical insulators and etc.
Specifications are subject to change without prior notice.
2-1
2-2
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.
Ë SERVICE MODE
(1) In the Service Mode, Key is used to select the mode in the following order.
AGC & GEOMETRIC MODE WHITE POINT ADJ. MODE SUB ADJ. MODE
1. Setting the service mode by the microprocessor.
1 Make 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). 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 Make 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.
Y-DELAY ADJ. MODE
MISC. OPTION MODE
IC OPTION MODE
OFFSET ADJ. MODE FORWARD : CH DOWN KEY REVERSE : CH UP KEY
2. Factory Presetting.
1 Make 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). 2 The initial data are preset as listed in pages 4-6. 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 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.
AGC & GEOMETRIC MODE AGC TAKE 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 WARM W.P.(DRI-RW) W.P. GREEN WARM W.P.(DRI-GW) W.P. BLUE WARM W.P.(DRI-BW) W.P. RED COOL W.P.(DRI-RC) W.P. GREEN COOL W.P.(DRI-GC) W.P. BLUE COOL W.P. (DRI-BC)
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 B(CUT-B) CATHODE DRIVE LEVEL(CDL)
3
3. For reference please check with memory map (UA1 Series type RH-IX3368CE Attachment)
FORWARD : CH DOWN KEY REVERSE : CH UP KEY *( ) means OSD display.
CX34K3
3-1
3-2
CX34K3
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) (COL-O3) SHARPNESS OFFSET (NTSC443) (COL-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)
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 CONTRAST COLOUR BRIGHTNESS TINT SHARPNESS WHITE TEMP S-VOLUME BLUE BACK C SYSTEM S SYSTEM USER DATA MIN (1/60) MIN (1/60) MIN (1/60) MIN (1/60) MIN (1/60) STANDARD MIN (1/60) OFF AUTO *1
*1 : For each CH, before changing service mode setting.
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
The flow of Mode lists as following,
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) RESERVED FOR LATAM :ODER:BRAZIL /ARGENTINA (OBA) B B BILINGUAL(BIL) IF AGC SPEED BIT 0 (AGC0) IF AGC SPEED BIT 1 (AGC1) FOA Time Constant-RF (FOA-FE) FOB Time Constant-RF (FOB-FE) FOA Time Constant-AV (FOA-AV) FOB Time Constant-AV (FOB-AV)
* Direct Key-in Step1 Mode
RC COMMAND FUNCTION CONTRAST DOWN COLOUR DOWN BRIGHTNESS DOWN TINT DOWN SHARPNESS DOWN SYSTEM BLUEBACK TIMER CONTRAST UP COLOUR UP BRIGHTNESS UP TINT UP TINT SHARPNESS UP SERVICE-ITEM AGC V-LIN V-AMP V-CENT H-CENT EW / / HB S-COR SUB-VOL SUB-CON SUB-COL SUB-BRI SUB TINT SUB-SHP
4
4-1
4-2
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 AGC TAKE OVER POINT VERTICAL SLOPE VERTICAL AMPLITUDE VERTICAL SHIFT HORIZONTAL SHIFT S-CORRECTION WHITE POINT RED STD WHITE TEMP WHITE POINT GREEN STD WHITE TEMP WHITE POINT BLUE STD WHITE TEMP WHITE POINT RED WARM WHITE TEMP WHITE POINT GREEN WARM WHITE TEMP WHITE POINT BLUE WARM WHITE TEMP WHITE POINT RED COOL WHITE TEMP WHITE POINT GREEN COOL WHITE TEMP WHITE POINT BLUE COOL WHITE TEMP MAX VOLUME SUB CONTRAST SUB COLOUR SUB BRIGHTNESS SUB TINT SUB SHARPNESS MAX HOTEL VOLUME HOTEL PROGRAM NUMBER OSD GRB REFERENCE BLACK LEVEL OFF-SET R BLACK LEVEL OFF-SET B CATHODE DRIVE LEVEL Y-DELAY TIME FOR PAL(TV) [YD] Y-DELAY TIME FOR SECAM(TV) [YD] Y-DELAY TIME FOR N358 (TV) [YD] Y-DELAY TIME FOR N443 (TV) [YD] Y-DELAY TIME FOR B/W (TV) [YD] Y-DELAY TIME FOR PAL (AV) [YD] Y-DELAY TIME FOR SECAM (AV) [YD] Y-DELAY TIME FOR N358 (AV) [YD] Y-DELAY TIME FOR N443 (AV) [YD] Y-DELAY TIME FOR B/W (AV) [YD] COLOUR OFFSET (PAL) COLOUR OFFSET (SECAM) COLOUR OFFSET (NTSC358) COLOUR OFFSET (NTSC443) SHARPNESS OFFSET (PAL) SHARPNESS OFFSET (SECAM) OSD AGC V-LIN V-AMP V-CENT H-CENT S-COR DRI-RS DRI-GS DRI-BS DRI-RW DRI-GW DRI-BW DRI-RC DRI-GC DRI-BC SUB-VOL SUB-CON SUB-COL SUB-BRI SUB-TINT SUB-SHP HTL-VOL HTL-PRG RGB CUT-R CUT-B CDL DL-PT DL-ST DL-3T DL-4T DL-TV DL-PA DL-SA DL-3A DL-4A DL-AV COL-OP COL-OS COL-03 COL-O4 SHP-OP SHP-OS DATA LENGTH INITIAL DATA FIX/ADJ REMARK 0~63 14 ADJ 0~63 32 ADJ 0~63 32 ADJ 0~63 32 ADJ 0~63 32 ADJ 0~63 0 FIX 0~63 32 FIX 0~63 32 ADJ 0~63 32 ADJ 0~63 32 FIX 0~63 32 FIX (DRI-GS)-7 DATA 0~63 32 FIX (DRI-BS)-7 DATA 0~63 25 FIX (DRI-BS)-7 DATA 0~63 32 FIX (DRI-GS)-7 DATA 0~63 63 FIX (DRI-BS)SAMEDATA 0~63 63 FIX 0~63 63 FIX 0~63 32 ADJ 0~63 32 ADJ 0~63 32 ADJ 0~63 32 (20) ADJ *1 0~63 32 ADJ 0~99 OR>99FOR NONE 255 FIX 0~15 15 FIX 0~15 8 FIX 0~15 8 FIX 0~15 0 (2) FIX *2 0~15 12 FIX 0~15 15 FIX 0~15 12 FIX 0~15 12 FIX 0~15 12 FIX 0~15 12 FIX 0~15 15 FIX 0~15 12 FIX 0~15 12 FIX 0~15 12 FIX 0~15 8 FIX 0~15 8 FIX 0~15 4 FIX 0~15 4 FIX 0~15 8 FIX 0~15 4 FIX
EEPROM ITEMS OSD SHARPNESS OFFSET (NTSC358) SHP-O3 SHARPNESS OFFSET (NTSC443) SHP-O4 VERTICAL SCAN DISABLE VSD BLACK STRETCH BKS AUTOMATIC VOLUME LEVELING AVL FAST FILTER IF-PLL FFI ENABLE VERTICAL GUARD (RGB BLANKING) EVG EHT TRACKING MODE (HCO) EHT OVERSCAN SWITCH OFF OSO AUTO COLOUR LIMIT ACL FORCED COLOUR LIMIT FCO 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 DEMODULATOR GAIN FORBTSC SIGNAL BTSC NUMBER OF EXTERNAL 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 CPT CRT BILINGUAL BIL IF AGC SPEED BIT 0 AGC0 IF AGC SPEED BIT 1 AGC1 PHI-1 TIME CONSTANT (RF) FOA-FE PHI-1 TIME CONSTANT (RF) FOB-FE PHI-1 TIME CONSTANT (OFF AIR) FOA-AV PHI-1 TIME CONSTANT (OFF AIR) FOB-AV
DATA LENGTH INITIAL DATA FIX/ADJ REMARK 0~15 12 FIX 0~15 8 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 1 FIX ONLY BLK 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX *3 0(DISABLE)/1(ENABLE) 0 FIX *3 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 1 FIX *3 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 1 FIX *3 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0 FOR1 AV/1 FOR 2AV 1 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 0 FIX 0(DISABLE)/1(ENABLE) 1 FIX 0(DISABLE)/1(ENABLE) 1 FIX
5
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" 5-2
CX34K3
5-1
CX34K3
INITIAL SETTING
(1) In service mode, After execute select POS 1, store the following tuning data in E2PROM.
CH-No. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 MCL1 Fv (MHz) 48.25 62.25 77.25 175.25 182.25 183.25 191.25 196.25 199.25 210.25 224.25 471.25 487.25 503.25 575.25 583.25 599.25 621.25 639.25 703.25 735.25 767.25 815.25 855.25 855.25 55.25 83.25 183.25 193.25 217.25 471.25 477.25 693.25 112.25 168.25 294.25 463.25 647.25 663.25 679.25 174.95 175.55 SOUND SYS B/G B/G D/K B/G B/G D/K D/K B/G M B/G B/G B/G I B/G B/G B/G B/G M D/K B/G I B/G B/G I B/G M M M M M M M M B/G B/G B/G B/G B/G B/G B/G B/G B/G CH-No. 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 MCL2 Fv (MHz) 590.25 46.25 64.25 86.25 95.25 138.25 175.25 182.25 189.25 196.25 209.25 216.25 SOUND SYS B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G
SHIPPING SETTING & CHECKING
(1) The following default data has been factory-set for the E2PROM.
ITEMS LAST PROGRAM/CHANNEL FLASHBACK PROGARM/CH DIGIT C-SYSTEM S-SYSTEM SKIP AFC VOLUME CONTRAST COLOUR BRIGHTNESS TINT SHARPNESS WHITE TEMP REMINDER TIMER ON TIMER OFF TIMER LAST POWER LANGUAGE BLUE BACK MUTE HOTEL MODE 0 CHANNEL SKIP DATA SETTING 1 1 1 AUTO *1 OFF ON 1 60 (MAX) 0 (CENTER) 0 (CENTER) 0 (CENTER) 0 (CENTER) STANDARD In-active, "--:--" In-active, "--:--" In-active, "--:--" POWER-ON ENGLISH OFF OFF ON
527.25 847.25 48.25 175.25 210.25 224.25 575.25 599.25 767.25 183.25 193.25 112.25 168.25 294.25 463.25 174.95 175.55 599.25
B/G B/G B/G B/G B/G B/G B/G B/G B/G M M B/G B/G B/G B/G B/G B/G B/G
After pressing "MODEL SETTING", 0 Channel will be skipped.
6
6-1
6-2
PIF ADJUSTMENT
NO. Adjustment part 1 Tuner IFT (PRESET) Adjusting procedure and conditions 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 IMPEDANCE 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. Waveform and others
PURITY ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions 1. Receive the GREEN-ONLY signal. Adjust the 1 PURITY ADJ. beam current to about 500 µA. 2. Degauss the CRT enough with the degausing coil. Note: Follow the Job Instruction Sheet to adjust the magnetic field. Vertical Bv : +0.030 mT (0.30 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 500 µA. Note: Set the service mode by JA122 & JA124 (short) then press factory process R/C RGB key to change to RGB mono colour mode. * For the following colours press R/C RGB key to change.
Green-only Blue-only Red-only
Waveform and others
10k
Oscilloscope
1n60 1000p IF OUT
a
b
100k
75ohm
Fig. 1
E-9 CH
Fig. 4-1
P
C
-1.5+/-0.8dB
A
Fig. 2
B A=B
2
RF-AGC TAKE OVER POINT ADJUSTMENT (I2C BUS CONTROL)
1. Receive "PAL COLOUR BAR" signal. » Signal Strength: 54 ±1 dBµV (75 ohm open) 2. Connect the oscilloscope to TP210 (Tuner's AGC Terminal) as shown in Fig. 3.
Oscilloscope + 0.1V Bias box + » Bias box: About 4.5 V TP210
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 54 ±1 dBµV (75 ohm open). Precaution: The loss of using impedance adapter
Fig. 4-2 Rank "A" (on the right of the CRT)
7
A
B A=B
TV Set
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.
Signal-colour screen cleared
Fig. 4-3 Rank "A" (on the left of the CRT) * Press R/C RGB key for 1 second in NORMAL MODE, the colour will change to RGB mono colour mode. The TEXT Key "R. G. Cy" Key can be directly use to change to other colours screen.
CX34K3
7-1
7-2
CX34K3
CONVERGENCE ADJUSTMENT
NO. Adjustment part 1 CONVERGENCE ADJ. (To be done after the purity adjustment.) Adjusting procedure and conditions 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.
About 100° Lacquer Wedge "b" Wedge "c"
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST ADJUSTMENT
BGR B G R
Waveform and others
NO. Adjustment part Adjusting procedure and conditions 1. Switch TV to VIDEO mode, BLUE BACK OFF 1 CRT CUTOFF ADJUSTMENT with NO VIDEO signal. (I2C BUS 2. Press R/C to set Picture Normal condition. CONTROL) 3. Connect the oscilloscope to Red OUT from IC801.(TP851) Range Sweep : 1 V/Div (DC) : 5 msec/Div
Waveform and others
3.0Vdc
Fig. 5-1
RGB R G B
1V 0
4. Adjust SCREEN VR, so that the tip of signal reach 3.0 +0.1 Vdc. 2 SUBBRIGHTNESS ADJUSMENT (I2C BUS CONTROL) 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. Receive the "WHITE" Pattern with BURST signal. 2. Press R/C to set Picture NORMAL condition. 3. Connect the DC miliammeter between the TP602 (-) and TP603 (+). 4. Check Beam current should be around 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, with BURST Signal, and set Brightness Y by generator, to ** 10 cd/m2 (Minolta CA-100) by reducing Luminate Y signal. 7. Adjust "CUT-R" & "CUT-G" to get 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 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 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 (+) and TP602 (). (Full Scale: 3 mA Range) 4. Beam current must be within 800 ±100 µA.
Fig. 6
Fig. 5-2
B G R RGB
1 2 3 4 5
1, 2 and 3 are in same black level. Fig. 7
3 Fig. 5-3
R G B BGR
WHITE BALANCE SERVICE MODE ADJ. (I2C BUS CONTROL)
* 12,300°K
X : 0.272 Y : 0.275
Fig. 5-4
Wedge "a" About 100°
(MINOLTA COLOUR ANALYZER CA-100) *Note: Above Data can be UP/ DOWN by Volume key.
8
Fig. 5-5
4-pole magnet 6-pole magnet CRT neck
Lacquer Purity magnet
40mm
Fig. 5-6
8-1
8-2
HORIZONTAL AND VERTICAL DEFLECTION LOOP ADJUSTMENT
NO. Adjustment part 1 V-LINEARITY (I2C BUS CONTROL) Adjusting procedure and conditions 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 1. Call the "H-CENT" mode. 2. Increase or decrease "H-CENT" by Volume key to center the picture horizontal. 1. Call the "SUB-SHP" mode. 2. Set "SUB-SHP" to 20 by pressing Volume down key. 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. 3 Other protectors 2 H, V PROTECTOR Waveform and others NO. Adjustment part 1 SUB-TINT (I2C BUS CONTROL)
NTSC CHROMA ADJUSTMENT
Adjusting procedure and conditions 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)(Use Probe 10:1) » Sweep time : 10 µsec/div. 3. Call the "SUB-TINT" mode in service mode. Adjust the "SUB-TINT" bus data to obtain the same level of waveform shown as Fig. 9. 4. Clear the SERVICE mode. Waveform and others
SAME LEVEL
2
V-CENTER (I2C BUS CONTROL) V - AMP (I2C BUS CONTROL)
W Y Cy G Mg R B
Fig. 9
3
4
S-CORRECTION (I2C BUS CONTROL) H - CENTER
PROTECTOR OPERATION CHECKING
NO. Adjustment part BEAM PROTECTOR 1. 2. 3. 4. Adjusting procedure and conditions Receive "Monoscope Pattern" signal. Set CONTRAST MAX. Set BRIGHT MAX. During the Collector & Emitter of Q883/5/7 short, make sure the protector ON and switch to standby mode. Waveform and others * Select one of Q883/5/7 to do each short test.
5
6
SUBSHARPNESS
7
Focus adjustment
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. 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)
9
PAL CHROMA ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions 1. Receive the "PAL Colour Bar" signal. 1 SUB COLOUR 2. Press R/C to set Picture Normal condition. (I2C BUS CONTROL) 3. Connect the oscilloscope to Red cathode (TP854). » 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. Waveform and others
A/V INPUT AND OUTPUT CHECKING
Cy G B
NO. Adjustment part 1 VIDEO AND AUDIO OUTPUT CHECK
Adjusting procedure and conditions 1. Receive the "PAL Colour Bar" signal (100% White Color Bar, Sound 400 Hz 100% Mod.) 2. Terminate the Video output with a 75 ohm impedance. Make sure the output is as specified (1.0 Vp-p ±3 dB). 3. Terminate the Audio output with a 10k ohm impedance. Make sure the output is as specified (1.76 Vp-p ±3 dB). 1. Using the TV/AV key on the remote controller, make sure that the modes change in order of TV, AV1, AV2 & TV again and the video & audio output are according to the input terminal for each mode.
Waveform and others
W Y 100%W Mg R 75%
Fig. 8 2 VIDEO AND AUDIO INPUT CHECK
CX34K3
9-1
9-2
CX34K3
FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
NO. Adjustment part 1 CONTRAST key Adjusting procedure and conditions 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. 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. 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 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 direction whether is OK or not. 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. Waveform and others
FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
(Continued)
NO. Adjustment part 9 Colour system Adjusting procedure and conditions 1. Receive the "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" signal thru AV, press COLOUR SYSTEM key to select modes except N4.43/3.58, check the COLOUR is not working properly. Then, select the "NTSC 4.43/3.58" mode. Check again its colour so that it is working properly. Waveform and others
2
COLOUR key
3
BRIGHTNESS key
4
TINT key
5
SHARPNESS Key
10
6 CH DISPLAY COLOUR 7 NORMAL Key 8 White Temp
10
NOISE MUTE CHECKING
1. All Ch (1~99) will have an OSD display of the channel number in green colour under AFT ON condition.
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.
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 » COLOUR » BRIGHTNESS » TINT » SHARPNESS : MAX : CENTER : CENTER : CENTER : CENTER
Note: If nothing is display mean contrast, colour, bright, tint or sharpness are all in normal setting. 11 OSD LANGUAGE QUANTITY CHECK Check OSD LANGUAGE quantity and type as English, Russian, Chinese, French, Arabic and Malay.
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.
10-1
10-2
HEADPHONE JACK CHECKING
NO. Adjustment part 1 HEADPHONE OUTPUT CHECKING Adjusting procedure and conditions 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. Waveform and others
MEMORY MAP
ADDRESS
(HEX)
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F
D7
D6
D5
DATA D4 D3
PASS WORD PASS WORD PASS WORD PASS WORD
MICO
EEPROM RANGE
EEPROM
CHASSIS
CTV FINAL
LAST INITIAL
D2
D1
D0
DEFAULT
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
REMARK
55 4F 43 A1
00-FF 00-FF 00-FF 00-FF
AGC TAKE-OVER V-SLOPE V-AMPLITUDE V-CENTER H-CENTER H-SIZE EW-PARALLELOGRAM EW-PARABOLA/WIDTH EW-UPPER CORNER EW-LOWER CORNER EW-TRAPEZIUM HORIZONTAL-BOW S-CORRECTION
0E 20 20 20 20 20 20 20 20 20 20 20 00
00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F
DRIVE-R (STANDARD) DRIVE-G (STANDARD) DRIVE-B (STANDARD) DRIVE-R (WARM) DRIVE-G (WARM) DRIVE-B (WARM) DRIVE-R (COOL) DRIVE-G (COOL) DRIVE-B (COOL)
20 20 20 20 20 20 19 20 20
00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F
SUB-VOLUME SUB-CONTRAST SUB-COLOUR SUB-BRIGHTNESS SUB-TINT SUB-SHARPNESS HTL-VOLUME HTL-POSITION
3F 3F 20 20 20 20 20 FF
00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-3F 00-FF
11
11-1
OSD-REFERENCE CUTOFF LEVEL -OFFSET R CUTOFF LEVEL -OFFSET B CATHODE DRIVE LEVEL Y-DELAY (TV PAL) Y-DELAY (TV SECAM) Y-DELAY (TV N358) Y-DELAY (TV N443) Y-DELAY (TV BW) Y-DELAY (AV PAL) Y-DELAY (AV SECAM) Y-DELAY (AV N443) Y-DELAY (AV N358) Y-DELAY (AV BW) COLOUR-OFFSET (PAL) COLOUR-OFFSET (SECAM) COLOUR-OFFSET (N443) COLOUR-OFFSET (N358) SHARPNESS-OFFSET (PAL)
0F 08 08 00 0C 0F 0C 0C 0C 0C 0F 0C 0C 0C 08 08 04 04 08
00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F 00-0F
MODEL
MODEL
LETTER NO.
LETTER NO.
CX34K3
11-2
CX34K3
ADDRESS
(HEX)
40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5D 5E 5F 60 61 62 63 64 65 66 67 68 69 6A 6B 6C 6D 6E 6F 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7D 7E 7F
D7
D6
D5
D4
DATA D3
MICO
EEPROM RANGE
EEPROM
CHASSIS
CTV FINAL
LAST INITIAL
ADDRESS
D2
D1
D0
DEFAULT
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
REMARK
(HEX)
80 81 82 83 84 85 86 87 88 89 8A 8B 8C 8D 8E 8F 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9E
D7
D6
D5
DATA D4 D3
MICO
EEPROM RANGE
EEPROM
CHASSIS
CTV FINAL
LAST INITIAL
D2
D1
D0
DEFAULT
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
REMARK
POS 4
SHARPNESS-OFFSET (SECAM) SHARPNESS-OFFSET (N443) SHARPNESS-OFFSET (N358)
04 0C 08
BKS M
00-0F 00-0F 00-0F 00-FF 00-FF 00-FF 00-FF 00-FF
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 5
FCO SCM SM HP2
ACL N443
OSO N358 FMWS
EHT PB-SEC AV FRA
EVG BG BTSC CHN AGC
FFI I HTL MLY
AVL DK VMC ARB BIL
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 6
VMI THA OBA
FSL
RUS
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 7
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 8
VOLUME CONTRAST COLOUR BRIGHTNESS TINT SHARPNESS
01 3C 1E 1E 1E 1E
00-3C 00-3C 00-3C 00-3C 00-3C 00-3C
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 9
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 10
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 11
POSITION/AV1/AV2 FAV-POS A FAV-POS B FAV-POS C FAV-POS D
01 0A 14 1E 28
00-FF 00-FF 00-FF 00-FF 00-FF
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 12
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 13
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 14
POWER WHITE-TEMP BLUE BACK LANGUAGE DIGIT
00 00 00 00 00
SKIP 5 SKIP 13 SKIP 21 SKIP 29 SKIP 37 SKIP 45 SKIP 53 SKIP 61 SKIP 69 SKIP 77 SKIP 85 SKIP 93 SKIP 6 SKIP 14 SKIP 22 SKIP 30 SKIP 38 SKIP 46 SKIP 54 SKIP 62 SKIP 70 SKIP 78 SKIP 86 SKIP 94 SKIP 7 SKIP 15 SKIP 23 SKIP 31 SKIP 39 SKIP 47 SKIP 55 SKIP 63 SKIP 71 SKIP 79 SKIP 87 SKIP 95
00-01 00-02 00-01 00-07 00-01 00-FF 00-FF 00-FF 00-FF 00-FF 00-FF 00-FF 00-FF 00-FF 00-FF 00-FF 00-FF 00-FF
9F A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF B0 B1 B2 B3 B4 B5 B6 B7 B8
S-SYS S-SYS S-SYS S-SYS S-SYS S-SYS S-SYS S-SYS
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 15
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 16
SKIP 0 SKIP 8 SKIP 16 SKIP 24 SKIP 32 SKIP 40 SKIP 48 SKIP 56 SKIP 64 SKIP 72 SKIP 80 SKIP 88 SKIP 96
SKIP 1 SKIP 9 SKIP 17 SKIP 25 SKIP 33 SKIP 41 SKIP 49 SKIP 57 SKIP 65 SKIP 73 SKIP 81 SKIP 89 SKIP 97
SKIP 2 SKIP 10 SKIP 18 SKIP 26 SKIP 34 SKIP 42 SKIP 50 SKIP 58 SKIP 66 SKIP 74 SKIP 82 SKIP 90 SKIP 98
SKIP 3 SKIP 11 SKIP 19 SKIP 27 SKIP 35 SKIP 43 SKIP 51 SKIP 59 SKIP 67 SKIP 75 SKIP 83 SKIP 91 SKIP 99
SKIP 4 SKIP 12 SKIP 20 SKIP 28 SKIP 36 SKIP 44 SKIP 52 SKIP 60 SKIP 68 SKIP 76 SKIP 84 SKIP 92
80 00 00 00 00 00 00 00 00 00 00 00 00
12
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 17
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 18
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 19
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 20
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 21
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 22
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
S-SYS 000:BG 001:I O1O:DK 011:M
C-SYS
B9
POS 0
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 23
BA BB BC
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 24
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto)
POS 1
BD BE BF
TUNING FREQUANCY (HIGHER PART)
POS 25
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
AFT 0:OFF 1:ON
POS 2
MODEL
MODEL
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 3
LETTER NO.
LETTER NO.
MODEL
MODEL
LETTER NO.
LETTER NO.
12-1
12-2
ADDRESS
(HEX)
C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF E0 E1 E2 E3 E4 E5 E6
D7
D6
S-SYS
D5
DATA D4 D3
AFT (auto)
MICO
EEPROM RANGE
EEPROM
CHASSIS
CTV FINAL
LAST INITIAL
ADDRESS REMARK
POS 25
D2
D1
D0
C-SYS
DEFAULT
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
(HEX)
100 101
D7
D6
D5
DATA D4 D3
MICO
EEPROM RANGE
EEPROM
CHASSIS
CTV FINAL
LAST INITIAL
D2
D1
D0
DEFAULT
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
REMARK
POS 46
TUNING FREQUANCY (LOWER PART)
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 47
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 26
102 103 104
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 48
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 27
105 106 107
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 49
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 28
108 109 10A
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 50
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 29
10B 10C 10D
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 51
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 30
10E 10F 110
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 52
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 31
111 112 113
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 53
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 32
114 115 116
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 54
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 33
117 118 119
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 55
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 34
11A 11B 11C
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 56
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 35
11D 11E 11F
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 57
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 36
120 121 122
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 58
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 37
123 124 125
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 59
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 38
126 127 128
13
E7 E8 E9 EA EB EC ED EE EF F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 FA FB FC FD FE FF
S-SYS S-SYS S-SYS S-SYS S-SYS S-SYS S-SYS
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 60
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 39
129 12A 12B
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 61
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 40
12C 12D 12E
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 62
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 41
12F 130 131
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 63
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 42
132 133 134
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 64
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 43
135 136 137
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 65
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 44
138 139 13A
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 66
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 45
13B 13C 13D
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 67
POS 46
13E 13F
MODEL
MODEL
MODEL
MODEL
LETTER NO.
LETTER NO.
LETTER NO.
LETTER NO.
CX34K3
13-1
13-2
CX34K3
ADDRESS
(HEX)
140 141 142 143 144 145 146 147 148 149 14A 14B 14C 14D 14E 14F 150 151 152 153 154 155 156 157 158 159 15A 15B 15C 15D 15E 15F 160 161 162 163 164 165 166
D7
D6
D5
DATA D4 D3
MICO
EEPROM RANGE
EEPROM
CHASSIS
CTV FINAL
LAST INITIAL
ADDRESS REMARK
POS 68
D2
D1
D0
DEFAULT
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
(HEX)
180 181 182
D7
D6
D5
DATA D4 D3
MICO
EEPROM RANGE
EEPROM
CHASSIS
CTV FINAL
LAST INITIAL
D2
D1
D0
DEFAULT
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
REMARK
POS 89
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 90
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 69
183 184 185
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 91
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 70
186 187 188
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 92
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 71
189 18A 18B
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 93
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 72
18C 18D 18E
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 94
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 73
18F 190 191
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 95
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 74
192 193 194
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 96
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 75
195 196 197
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 97
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 76
198 199 19A
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 98
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 77
19B 19C 19D
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 99
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 78
19E 19F 1A0
AV1
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 79
1A1 1A2 1A3
(auto) C-SYS AV2
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
POS 80
1A4 1A5 1A6
(auto) C-SYS
14
167 168 169 16A 16B 16C 16D 16E 16F 170 171 172 173 174 175 176 177 178 179 17A 17B 17C 17D 17E 17F
S-SYS S-SYS S-SYS S-SYS S-SYS S-SYS S-SYS S-SYS
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 81
1A7 1A8 1A9
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 82
1AA 1AB 1AC
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 83
1AD 1AE 1AF
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 84
1B0 1B1 1B2
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 85
1B3 1B4 1B5
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 86
1B6 1B7 1B8
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 87
1B9 1BA 1BB
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) AFT (auto) C-SYS
POS 88
1BC 1BD 1BE
POS 89
1BF
MODEL
MODEL
MODEL
MODEL
LETTER NO.
LETTER NO.
LETTER NO.
LETTER NO.
14-1
14-2
ADDRESS
(HEX)
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
D7
D6
D5
DATA D4 D3
MICO
EEPROM RANGE
EEPROM
CHASSIS
CTV FINAL
LAST INITIAL
D2
D1
D0
DEFAULT
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE SETTING DATA
REMARK
UA1 HOTEL MODE APPLICATION
How to enable/disable the "Hotel Mode" ? Ans: a) Press the R/C (FUNCTION) {1} key until language selection appear, within five second press the (one/two digit) {2} 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) {3} key.
HOTEL ON PASSWORD ****
Set vol up/down by R/C key. Input 1, 3, 7 and 9 by R/C key.
#1 Ch 1 is your selected channel for hotel mode. * 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)
15
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
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.
MODEL
MODEL
LETTER NO.
LETTER NO.
CX34K3
15-1
15-2
CX34K3
TROUBLE SHOOTING TABLE
NO RASTER
Check F701. Blown out.
TROUBLE SHOOTING TABLE (Continued)
CIRCUITS TO BE CHECKED: » Tuner. » PIF. » Automatic Gain Control. » (5V), (32V) Power Source.
NO PICTURE, NO SOUND
Does the noise level increase at max. Contrast, Brightness and Sound controls ?
Normal
Replace the fuse.
Noise increases but no signal is received.
No snow noise.
Abnormal
Check pin (7) of T701 voltage. (Approx. 310V at 220V AC)
The fuse is again blown out.
Check R701, R707 and D709.
Normal
Check IC701, D701, C707 and D710.
Check the tuner supply voltage LB must be approx. 5V, BT must be approx. 32V. and CH preset data check.
Does noise or signal appear at pin (40) of IC801 ?
NO
Does noise or signal appear at pin (38) of IC801 ?
YES
Check IC801 and its related circuit.
Check Secondary Main+B (Approx. 115V)
Normal
Normal
Check the tuner AGC at TP201.
Abnormal
Check IC702, IC753, D758 and D762. Check CRT connector K1-K5 bias.
NO
YES
Check Q205 and related circuit.
YES
D1001 (Power LED Green) turns on.
Normal
Check pin (38) of IC801.
Abnormal
Check pin (27) of IC801, Tuner and related circuit.
NO Normal Normal Abnormal
D1001 (Power LED Red) turns on or turns ON/OFF.
Check pin (1) of SF201, Tuner and related circuit. Check pin (37) of IC801 and related circuit.
16
Check R615 and R618.
Check C878.
Check IC801.
ON/OFF
ON
Checking the protector circuit. Does horizontal circuit oscillate ?
NO
Check IC751 and IC801.
CIRCUITS TO BE CHECKED: » Sound system pins (28) and (44) of IC801. » Sound Detector Circuit. » Sound Switch and Att. Control. » Audio Output Circuit.
NO SOUND
Does noise signal appear at pin (44) of IC801 ?
NO
Does signal appear at pins (28) of IC801?
YES (Signal)
YES
NO
Does signal appear at pins (6) and (8) of IC301 ?
NO
Check C356 and peripheral circuit.
Check IC801.
YES
Check P301, P302, IC301 and peripheral circuit.
Check Q301, pins (4) and (6) of IC801 and peripheral circuit.
16-1
16-2
TROUBLE SHOOTING TABLE (Continued)
NEITHER VERTICAL NOR HORIZONTAL SYNCHRONIZATION
CIRCUIT TO BE CHECKED: » Sync. Separator Circuit. Check pins (16), (17) and (34) of IC801.
TROUBLE SHOOTING TABLE (Continued)
NO SPECIFIC COLOUR
NO
Is some colour produced in B/W broadcast reception ?
YES
Check IC801, R801, R802, R803, D804, 805, D806 and Q801.
YES
Is the white balance properly adjusted ?
NO
Readjust the white balance.
DEFECTIVE VERTICAL AMP. AND VERTICAL LINEARITY
The picture colour is cyan. The picture colour is magenta. The picture colour is yellow.
Readjust vertical size. (Bas Data)
Check Q871, Q883 and its adjacent circuits. Check Q870, Q885 and its adjacent circuits. Check Q872, Q887 and its adjacent circuits.
Vertical linearity and size abnormal.
17
Normal
Check C503 and C507.
Check R504, R503, R506, R513, C517 and D501.
NO SPECIFIC COLOUR
NO VERTICAL SCAN
Check IC501 bias.
"PAL" (NO COLOUR SYNCHRONIZATION)
Check IC801 and bias control circuit.
Abnormal
Normal
Check IC501.
Check X1001(12 MHz).
CX34K3
17-1
17-2
CX34K3
SOLID STATE DEVICE BASE DIAGRAM
TOP VIEW
8 5 4 3
COLLECTOR COLLECTOR
2R
1 4 1 2
BASE EMITTER
:BR:
BASE EMITTER
M24C04W
FX0008GE
33
D601A
COLLECTOR
B709A
64
JC
1 32
BASE EMITTER
IX3368CE
2SC2735
SIDE VIEW
+
BASE COLLECTOR EMITTER 1 2 3
~
~
-
2SA1015 2SC1815
BASE COLLECTOR EMITTER
PST573J
SE115N
DX0386CE
2SC2482
ANODE (RED) CATHODE (COMMON) ANODE (GREEN)
1
12
1 2 3
B
C
E
TDA7056A
B C E
PX0423CE
KA7808 KA7805
2SC4517
2SD2586
B 1 LA7016 8 1 3 TA48M033
C TF321S
E 1
2 4 3 5 TDA8357
9
STRF6654
18
CX34K3
CHASSIS LAYOUT
H
G
F
E
D
C
B
A
1
2
3
4
5
6
19
CX34K3
BLOCK DIAGRAM
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
11
12
20
21
CX34K3
H
G
F
E
D
C
B
A
1
2
3
4
5
6
22
CX34K3
WAVEFORMS
H
G
1
1.0 Vp-p
2
2.5 Vp-p (H)
3
2.55 Vp-p (H)
4
3.35 Vp-p (H)
5
68.0 Vp-p (H)
F
E
6
66.0 Vp-p (H)
7
72.0 Vp-p (H)
8
3.0 Vp-p (H)
9
1.85 Vp-p (H)
0
150.0 Vp-p (H)
D
q
C
8.4 Vp-p (H)
w
1.3 Vp-p (H)
e
0.98 Vp-p (H)
r
43.0 Vp-p (H)
t
190.0 Vp-p (H)
B
y
1,050 Vp-p (H)
u
2.4 Vp-p (H)
i
500 Vp-p (H)
A
1
2
3
4
5
6
23
CX34K3
DESCRIPTION OF SCHEMATIC DIAGRAM
H DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE 1. REPLACING PARTS. 2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OPERATING.
SAFETY NOTES:
NOTES:
1. The unit of resistance "ohm" is omitted. (K = 1000 ohms, M = Meg ohm). 2. All resistors are 1/16 watt, unless otherwise noted. 3. All capacitors are µF, unless therwise noted. (P = µµF).
VOLTAGE MEASUREMENT CONDITIONS: IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH "å " ( ) ARE IMPORTANT FOR MAINTAINING THE SAFETY OF THE SET. BE SURE TO REG PLACE THESE PARTS WITH SPECIFIED ONES FOR MAINTAINING THE SAFETY AND PERFORMANCE OF THE SET. 1. Voltage in parenthesis measured with no Signal. 2. Voltages without parenthesis measured with PAL Colour-Signal. 3. All the voltages in each point are measured with high impedence volt-meter.
WAVEFORM MEASUREMENT CONDITIONS: SERVICE PRECAUTION:
THE AREA ENCLOSED BY THIS LINE ( ) IS DIRECTLY CONNECTED WITH AC MAINS VOLTAGE. WHEN SERVICING THE AREA, CONNECT AN ISOLATING TRANSFORMER BETWEEN TV RECEIVER AND AC LINE TO ELIMINATE FHAZARD OF ELECTRIC SHOCK. 1. Colour bar generator signal of 1.8V peak to peak applied at Base of Video Buffer Amp. Q200. 2. Approximately 4.0 V AGC bias.
Ë Infrared Remote Control Unit
NOTE : The parts here shown are supplied as an assembly but not independently.
E
RRMCG1342PESA
D
C
B
A
1
2
3
4
5
6
24
CX34K3
Ë Tuner
NOTE : The parts here shown are supplied as an assembly but not independently.
H
å VTUVTST5HD84/
G
F
E
D
C
B
A
1
2
3
4
5
6
25
CX34K3
SCHEMATIC DIAGRAM: MAIN Unit
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
11
12
26
27
CX34K3
SCHEMATIC DIAGRAM: CRT and HEADPHONE Unit
H
G
F
E
D
C
B
A
1
2
3
4
5
6
28
CX34K3
PRINTED WIRING BOARD ASSEMBLIES
H
G
F
PWB-B: CRT Unit (Wiring Side)
E
D
C
(Component Side)
(Chip Parts Side)
PWB-C: HEADPHONE Unit
B
A
10
11 1
12
2
13
14 3
15
4
16
17 5
18
6 19
29
CX34K3
H
G
F
E
D
C
B
A
PWB-A: MAIN Unit (Component Side)
1 2 3 4 5 6 7 8 9 10 11 12
30
31
CX34K3
H
G
F
E
D
C
B
A
PWB-A: MAIN Unit (Chip Parts Side)
1 2 3 4 5 6 7 8 9 10 11 12
32
33
CX34K3
Ref. No. Part No. 5 Description Code Ref. No. IC753 IC801 IC1002 IC1003 IC1005 Q201 Q203 Q205 Q301 Q302 Q305 Q601 Q602 Q603 Q710 Q711 Q723 Q751 Q752 Q753 Q801 Q802 Q1003 Q1010 D201 D301 D305 D308 D310 D401 D402 D501 D502 D503 D504 D505 D507 D508 D509 D510 D511 D512 D513 D514 D515 D602 D603 D604 D605 D606 D607 D608 D609 D610 D611 D612 D613 D614 D701 D702 D705 D706 D707 D708 D709 D710 D711 D712 D713 D714 D715 Part No. VHiSE115N//-1 RH-iX3368CEN0 VHiPST573J/-1 VHiM24C04W/-1 VHiKA7805Pi-1 VS2SC2735//1E VS2SD601A//-1 VS2SC1815GW-1 VS2SD601A//-1 VS2SD601A//-1 VS2SD601A//-1 VS2SC2482//-1 VS2SD1877//1E VS2SD601A//-1 VS2SC4517//-1 VS2SD601A//-1 VS2SD601A//-1 VS2SA1015G/1E VS2SC1815GW-1 VS2SC1815GW-1 VS2SB709A//-1 VS2SB709A//-1 VS2SD601A//-1 VS2SD601A//-1 RH-EX0676GEZZ RH-DX0475CEZZ RH-EX0631GEZZ RH-EX0631GEZZ RH-DX0302CEZZ RH-EX0631GEZZ RH-EX0631GEZZ RH-EX0640GEZZ RH-DX0475CEZZ RH-DX0475CEZZ RH-DX0475CEZZ RH-DX0127CEZZ RH-DX0475CEZZ RH-EX0647GEZZ RH-EX0647GEZZ RH-EX0867CEZZ RH-EX0867CEZZ RH-DX0475CEZZ RH-DX0475CEZZ RH-EX0903CEZZ RH-EX0903CEZZ RH-DX0475CEZZ RH-DX0062CEZZ RH-DX0475CEZZ RH-EX0840CEZZ RH-DX0475CEZZ RH-EX0662GEZZ RH-EX0604GEZZ RH-DX0475CEZZ RH-EX0662GEZZ RH-DX0302CEZZ RH-EX0627GEZZ RH-DX0475CEZZ RH-DX0475CEZZ RH-DX0386CEZZ VHD1SS82///1A RH-DX0492CEZZ VHD1SS82///1A VHD1SS82///1A RH-DX0400CEZZ RH-DX0164CEZZ RH-EX0601GEZZ VHD1SS82///1A VHD1SS82///1A RH-EX0621GEZZ RH-DX0055TAZZ RH-DX0055TAZZ 5 R R R R J R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R Description SE115N I.C. I.C. I.C. KA7805PI 2SC2735 2SD601A 2SC1815GW 2SD601A 2SD601A 2SD601A 2SC2482 2SD1877 2SD601A 2SC4517 2SD601A 2SD601A 2SA1015G 2SC1815GW 2SC1815GW 2SB709A 2SB709A 2SD601A 2SD601A Zener Diode Diode Zener Diode Zener Diode Diode Zener Diode Zener Diode Zener Diode Diode Diode Diode Diode Diode Zener Diode Zener Diode Zener Diode Zener Diode Diode Diode Zener Diode Zener Diode Diode Diode Diode Zener Diode Diode Zener Diode Zener Diode Diode Zener Diode Diode Zener Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Zener Diode Diode Diode Zener Diode Diode Diode Code AF BE AE AG AE AC AC AB AC AC AC AD AL AC AG AC AC AC AB AB AA AA AC AC AA AB AA AA AC AA AA AA AB AB AB AC AB AA AA AC AC AB AB AC AC AB AD AB AC AB AB AB AB AB AC AA AB AB AG AC AE AC AC AC AC AA AC AC AB AD AD
PARTS LIST
PARTS REPLACEMENT
Replacement parts which have these special safety characteristics identified in this manual: electrical components having such features are identified by "å" in the Replacement Parts Lists. The use of a substitute replacement part which does not have the same safety characteristics as the factory recommended replacement parts shown in this service manual may create shock, fire or other hazards.
TRANSISTORS
"HOW TO ORDER REPLACEMENT PARTS"
To have your order filled promptly and correctly, please furnish the following informations. 1. MODEL NUMBER 3. PART NO. 5. CODE 2. REF. NO. 4. DESCRIPTION 6. QUANTITY
MARK 5: SPARE PARTS-DELIVERY SECTION
Ref. No.
Part No.
5
Description
Code
DIODES
PICTURE TUBE
å V1
VB370BVBK1S-S or VB37GDA86X/1E LHLDW0003PEKZ MSPRT0001PEFJ PMAGF3006CEZZ PSPAG0004PEZZ QEARC1422PEZZ RCiLG0068PEZZ RCiLH0160PEZZ or RCiLH0149PEZZ
R Picture Tube (DY: H0160PE) Picture Tube (DY: H0149PEZZ) J ADG Coil Holder, x3 J Spring R Purity Magnet J Wedge (Gum), x3 J Grounding Strap J Degaussing Coil J Deflection Yoke (CRT: B370BVBK1S) Deflection Yoke (CRT: B37GDA86X)
BZ CB AB AC AK AB AD AH BC BA
PRINTED WIRING BOARD ASSEMBLIES
(NOT REPLACEMENT ITEM)
PWB-A DUNTK9988WEY2 PWB-B DUNTK9990WEV0 PWB-C DUNTK9989WEV0 MAIN Unit CRT Unit HEADPHONE Unit -- -- --
PWB-A
DUNTK9988WEY2 MAIN UNIT TUNER
NOTE: THE PARTS HERE SHOWN ARE SUPPLIED AS AN ASSEMBLY BUT NOT INDEPENDENTLY. å TU201 VTUVTST5HD84/ R VHF Tuner BB
INTEGRATED CIRCUITS
IC301 IC304 IC402 IC501 IC605 IC701 å IC702 IC751 VHiTDA7056A-1 VHiLA7016//-1 VHiLA7016//-1 VHiTDA8357/-1 VHiKA7808Pi-1 VHiSTRF6653-1 RH-FX0008GEZZ VHiTA48M033-1 R R R R J R R R TDA7056A LA7016 LA7016 I.C. KA7808PI I.C. PC123FY8 TA48M033F AP AH AH AN AF AS AE AH
34
CX34K3
Ref. No. D716 D718 D719 D751 D752 D753 D756 D757 D758 D759 D760 D761 D762 D801 D802 D803 D804 D805 D806 D1001 D1004 D1007 D1008 D1009 D1010 å VA700 Part No. RH-EX0615GEZZ RH-EX0649GEZZ RH-EX0649GEZZ RH-DX0471CEZZ RH-DX0475CEZZ RH-DX0471CEZZ RH-DX0471CEZZ RH-DX0471CEZZ RH-DX0461CEZZ RH-EX0716GEZZ RH-DX0475CEZZ RH-DX0475CEZZ VHDTF321S//-1 RH-DX0475CEZZ RH-DX0475CEZZ RH-DX0475CEZZ RH-DX0475CEZZ RH-DX0475CEZZ RH-DX0475CEZZ RH-PX0423CEZZ RH-DX0475CEZZ RH-EX0867CEZZ RH-EX0867CEZZ RH-EX0867CEZZ RH-EX0867CEZZ RH-VX0047CEZZ 5 R R R R R R R R R R R R R R R R R R R R R R R R R R Description Zener Diode Zener Diode Zener Diode Diode Diode Diode Diode Diode Diode Zener Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode LED, Power (Red/Green) Diode Zener Diode Zener Diode Zener Diode Zener Diode Varistor Code AA AB AB AE AB AE AE AE AG AB AB AB AH AB AB AB AB AB AB AD AB AC AC AC AC AF AG AG AG AB AB AB AB AB AB AB AB AB AF AK AN AB AB AB AB AB AL AZ AE AQ AB AA AC AA AB AA AA AA AA AA AB AB AB AA AA AC AB Ref. No. C303 C304 C305 C312 C314 C315 C317 C318 C331 C332 C333 C356 C359 C360 C364 C371 C373 C374 C375 C377 C379 C390 C405 C406 C407 C408 C409 C410 C411 C469 C501 C502 C503 C504 C506 C507 C508 C512 C513 C514 C515 C516 C517 C601 C602 C603 C604 C605 C606 C607 C608 C609 C610 C611 C612 C613 C614 C615 C616 C617 C620 C623 C624 C625 C626 C627 C628 C650 C654 C700 å C701 C702 C703 C704 C705 Part No. VCEA0A1CW106M VCQYTA1HM473J VCQYTA1HM473J VCQYTA1HM123J VCEA0A1EW477M VCKYPA1HF103Z VCEA0A1HW224M VCKYCY1HB102K VCEA0A1HW105M VCEA0A1EW477M VCKYPA2HB102K VCKYCY1HB682K VCEA9M1CW106M VCEA9M1HW225M VCEA0A1CW106M VCEA0A1CW476M VCEA0A1CW107M VCEA0A1HW225M VCEAEA1HW225M VCEA0A1HW225M VCEA0A1HW335M VCEA0A1HW105M VCEA0A1CW107M VCEA0A1CW477M VCEA0A1CW106M VCEA0A1CW106M VCKYCY1EF104Z VCKYCY1EF104Z VCKYCY1HB102K VCEA0A1HW105M VCKYCY1HF103Z VCKYCY1HF103Z VCEA0A1EW108M VCKYCY1HF223Z VCQYTA1HM104J VCEA0A1JW107M VCQYTA1HM103J VCKYCY1HB102K VCKYCY1HB102K VCKYPA1HF103Z VCKYPA2HB102K VCEA0A1JW477M VCFYFA1HA104J VCEAGA2EW106M VCQYTA1HM104J VCEA0A1HW105M VCEA0A1HW105M VCKYPA1HF103Z VCKYCY1HF103Z VCEA0A1CW477M VCEA0A1EW476M VCEA0A1EW108M VCFYSB2EB823J VCKYPA2HB102K RC-EZ0724CEZZ VCFPPB2EB394J RC-KZ0035CEZZ VCFPVC2DB224J VCFPPD3CA622H VCKYPA2HB102K VCKYCY1EF104Z VCQYTA1HM222J VCQYTA1HM472J VCEA0A1HW105M VCKYCY1HF223Z VCEA0A1HW106M VCEA0A1HW474M VCKYCY1EF104Z VCEA0A1CW476M VCQYTA1HM103J RC-FZ033SCEZZ RC-KZ0160GEZZ RC-KZ0160GEZZ VCKYPA2HB102K VCKYPA2HB102K 5 R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R Description 10 16V Electrolytic 0.047 50V Mylar 0.047 50V Mylar 0.012 50V Mylar 470 25V Electrolytic 0.01 50V Ceramic 0.22 50V Electrolytic 1000p 50V Ceramic 1.0 50V Electrolytic 470 25V Electrolytic 1000p 500V Ceramic 6800p 50V Ceramic 10 16V Electrolytic 2.2 50V Electrolytic 10 16V Electrolytic 47 16V Electrolytic 100 16V Electrolytic 2.2 50V Electrolytic 2.2 50V Electrolytic 2.2 50V Electrolytic 3.3 50V Electrolytic 1.0 50V Electrolytic 100 16V Electrolytic 470 16V Electrolytic 10 16V Electrolytic 10 16V Electrolytic 0.1 25V Ceramic 0.1 25V Ceramic 1000p 50V Ceramic 1.0 50V Electrolytic 0.01 50V Ceramic 0.01 50V Ceramic 1000 25V Electrolytic 0.022 50V Ceramic 0.1 50V Mylar 100 63V Electrolytic 0.01 50V Mylar 1000p 50V Ceramic 1000p 50V Ceramic 0.01 50V Ceramic 1000p 500V Ceramic 470 63V Electrolytic 0.1 50V Mylar 10 250V Electrolytic 0.1 50V Mylar 1.0 50V Electrolytic 1.0 50V Electrolytic 0.01 50V Ceramic 0.01 50V Ceramic 470 16V Electrolytic 47 25V Electrolytic 1000 25V Electrolytic 0.082 250V Mylar 1000p 500V Ceramic 100 160V Electrolytic 0.39 250V Polypro Film Capacitor 0.22 200V Polypro Film 6200p 1.6kV Polypro Film 1000p 500V Ceramic 0.1 25V Ceramic 2200p 50V Mylar 4700p 50V Mylar 1.0 50V Electrolytic 0.022 50V Ceramic 10 50V Electrolytic 0.47 50V Electrolytic 0.1 25V Ceramic 47 16V Electrolytic 0.01 50V Mylar 0.1 AC250V Film 0.01 250V Ceramic 0.01 250V Ceramic 1000p 500V Ceramic 1000p 500V Ceramic Code AB AA AA AA AD AA AB AA AB AD AA AA AB AB AB AB AC AB AB AB AB AB AC AC AB AB AA AA AA AB AA AA AD AB AA AC AA AA AA AA AA AE AA AC AA AB AB AA AA AC AB AD AD AA AG AF AB AE AE AA AA AA AB AB AB AB AB AA AB AA AF AC AC AA AA
PACKAGED CIRCUITS
PR702 RMPTP0028CEZZ X1001 RCRSB0281CEZZ CF202 L202 L203 L204 L205 L207 L209 L301 L401 L601 L603 å L701 å L702 L802 L803 L1030 L1050 L1051 SF201
å T602 å T603 å T701
R Packaged Circuit R Crystal R R R R R R R R R R R J J R R R R R R Ceramic Filter Peaking 27µH Peaking 27µH Peaking 1.2µH Peaking 1µH Peaking 1µH Peaking 6.8µH Peaking 1µH Peaking 1µH Peaking 1µH Coil Coil Coil Peaking 10µH Peaking 10µH Peaking 10µH Peaking 10µH Peaking 10µH SAW Filter
FILTERS AND COILS
RFiLC0318CEZZ VP-DF270K0000 VP-DF270K0000 VP-XF1R2K0000 VP-DF1R0K0000 VP-DF1R0K0000 VP-