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CX34N3
SERVICE MANUAL
COLOUR TELEVISION
Chassis No. GA-1AM
MODEL
CX34N3
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 Ë Ë Ë Ë Ë PAL B/G NTSC(AV Thru) Full Auto Channel Preset and Auto Channel Skip 100 CH Program Memory CATV (Hyper Band) Ready AVL (Sound Keeper) Function High Contrast Picture (Black Stretch Circuit) ON Timer/Sleep Timer/Reminder Timer Blue Back Noise Mute Page SPECIFICATIONS ............................................. 2 IMPORTANT SERVICE NOTES ........................ 2 ADJUSTMENT PRECAUTIONS ........................ 3 MEMORY MAP ................................................ 11 GA1-AM HOTEL MODE APPLICATION .......... 15 TROUBLE SHOOTING TABLE ........................ 16 SOLID STATE DEVICE BASE DIAGRAM ....... 18 WAVEFORMS .................................................. 20 CHASSIS LAYOUT .......................................... 21 BLOCK DIAGRAM ........................................... 22 DESCRIPTION OF SCHEMATIC DIAGRAM .. 26 SCHEMATIC DIAGRAM Ë CRT UNIT ..................................................... 27 Ë MAIN UNIT ................................................... 28 Ë Front AV In and Rear AV In/Out Terminals (Front AV Priority) Ë Colour-Comb Filter (NTSC AV In) Ë Hotel Mode Ë Front Headphone Jack Ë Multi Language OSD (English/Chinese/French/ Arabic/Malay/Russian) Ë White Temperature Adjustment
CONTENTS
» » » » » » » » » » » » Page Ë HEADPHONE UNIT ..................................... 30 Ë BURST UNIT ................................................ 31 » PRINTED WIRING BOARD ASSEMBLIES ..... 32 » REPLACEMENT PARTS LIST Ë ELECTRICAL PARTS MAIN UNIT ................................................... 38 CRT UNIT ..................................................... 41 HEADPHONE UNIT ..................................... 41 BURST UNIT ................................................ 41 Ë SUPPLIED ACCESSORIES ......................... 42 Ë PACKING PARTS ......................................... 42 Ë CABINET PARTS ......................................... 42 » PACKING OF THE SET ................................... 43
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
CX34N3
SPECIFICATIONS
Convergence ................................................................................. Self Converging System Focus ......................................................................... Electrostatic 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 ..................................................................................................... 58 W Audio Power Output Rating ......................................................................... 3.0 W (at Max.) Speaker Voice Coil Impedance ......................................................................... 16 ohms at 400 Hz Size .............................................................................................. 5 × 9 cm Elliptic (1 pcs) Aerial Input Impedance VHF/UHF ....................................................................................... 75 ohm Unbalanced Receiving Channels (PAL-B/G) » VHF .......................................................................................... AU0 » UHF ........................................................................................ AU28 thru thru AU12 ch AU69 ch
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 23.7 kV ± 1.5kV (at beam 0 µA) for the set. 2. To keep the set in a normal operation, be sure to make it function on 22.5 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.
Receiving Frequency » VHF-Channels .................................................................... 44.25 thru 463.25 MHz » UHF-Channels ................................................................. 471.25 thru 863.25 MHz Dimensions .............................................................................................. Width: Height: Depth: Weight (Approx.): Cabinet Material ................................................................................................. 357.0 mm 364.0 mm 370.5 mm 9.5 kg All Plastics
2
BEFORE RETURNING THE RECEIVER
Before returning the receiver to the user, perform the following safety checks. 1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the receiver. 2. Inspect all protective devices such as non-metallic control knobs, insulating fishpapers, cabinet backs, adjustment and compartment covers or shields, isolation 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. Coution: Make sure TV Set is in "Normal condition" before switch to service mode for adjustment
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 137 and 138 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 137 and 138 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 137 and 138 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 137 and 138 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) EAST-WEST WIDTH (H-SIZE) HORIZONTAL PARALLELOGRAM (EW//) EAST-WEST PARABOLA/WIDTH (PARA) EAST-WEST UPPER COR. PB (COR(U)) EAST-WEST LOWER COR. PB (COR(L)) EAST WEST TRAPEZIUM (TRAPE) HORIZONTAL BOW (HB) S-CORRECTION (S-COR) FORWARD : CH DOWN KEY REVERSE : CH UP KEY *( ) means OSD display.
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)
3
3. For reference please check with memory map (GA-1AM Series type RH-iX3368CE Attachment)
CX34N3
3-1
3-2
CX34N3
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)
* Direct Key-in for Service Item in Service 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 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
MISC. OPTION MODE SOUND SYSTEM M (S-M) SOUND SYSTEM DK (S-DK) SOUND SYSTEM I (S-I) SOUND SYSTEM BG (S-BG) PLAYBACK SECAM (P-SECAM) FE (RF) NTSC 3.58 (F-N358) FE (RF) NTSC 4.43 (F-N443) FE (RF) SECAM (F-SECAM) VIDEO MUTE AT IDENT LOSS (VMI) VIDEO MUTE AT PROGRAM /SOURCE CHANGE (VMC) HOTEL MODE (HTL) REDUCED FM DEMODULATION GAIN FOR BTSC SIGNAL (BTSC) A
A NUMBER OF EXT AV SOURCE (AV) FM WINDOW SELECTION (FMWS) SOUND MUTE BIT 0 (SM0) SOUND MUTE BIT 1 (SM1) THAI LANGUAGE (THA) ARABIC LANGUAGE (ARA) MALAY LANGUAGE (MAL) CHINESE LANGUAGE (CHI) FRENCH LANGUAGE (FRE) RUSSIAN LANGUAGE (RUS) FORCED V-SYNC SLICING LEVEL(FSL) SYNC OF OSD (HP2) TUNER SELECTION (CPT) B
B BILINGUAL(BIL) IF AGC SPEED BIT 0 (AGC0) IF AGC SPEED BIT 1 (AGC1) FOA Time Constant-RF (FOA-FE) FOB Time Constant-RF (FOB-FE) FOA Time Constant-AV (FOA-AV) FOB Time Constant-AV (FOB-AV) LED BLINK SPEED (LED-F) VOLUME CONTROL TABLE (MSA) OUTPUT VERTICAL GUARD (NDF)
4
4-1
4-2
After short JA137 & 138, 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 EAST-WEST WIDTH HORIZONTAL PARALLELOGRAM EAST-WEST PARABOLA/WIDTH EAST-WEST UPPER CORNER PARABOLA EAST-WEST LOWER CORNER PARABOLA EAST-WEST TRAPEZIUM HORIZONTAL BOW S-CORRECTION WHITE POINT RED STD WHITE TEMP WHITE POINT GREEN STD WHITE TEMP WHITE POINT BLUE STD WHITE TEMP WHITE POINT RED COOL WHITE TEMP WHITE POINT GREEN COOL WHITE TEMP WHITE POINT BLUE COOL WHITE TEMP WHITE POINT RED WARM WHITE TEMP WHITE POINT GREEN WARM WHITE TEMP WHITE POINT BLUE WARM 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 G 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 H-SIZE EW// PARA COR (U) COR (L) TRAPE HB S-COR DRI-RS DRI-GS DRI-BS DRI-RC DRI-GC DRI-BC DRI-RW DRI-GW DRI-BW SUB-VOL SUB-CON SUB-COL SUB-BRI SUB-TINT SUB-SHP HTL-VOL HTL-PRG RGB CUT-R CUT-G 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 32 *FIX 0~63 32 *FIX 0~63 32 *FIX 0~63 32 *FIX 0~63 32 *FIX 0~63 32 *FIX 0~63 32 *FIX 0~63 0 (17) *FIX 0~63 32 *FIX 0~63 32 ADJ 0~63 32 ADJ 0~63 25 *FIX 0~63 32 ADJ (DRI-GS)-7 DATA 0~63 32 ADJ SAME AS (DRI-BS) DATA 0~63 32 *FIX 0~63 32 ADJ (DRI-GS)-7 DATA 0~63 32 ADJ (DRI-BS)-7 DATA 0~63 63 *FIX 0~63 63 (52) *FIX 0~63 32 ADJ 0~63 32 ADJ 0~63 32 ADJ 0~63 32 (20) *FIX 0~63 32 *FIX 0~99 OR>99FOR NONE 255 *FIX 0~15 15 (6) *FIX 0~63 32 ADJ 0~63 32 ADJ 0~15 0 (5) *FIX 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 ADJ *1 0~15 8 ADJ *1 0~15 4 ADJ *1 0~15 4 ADJ *1 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 FOR BTSC 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 SELECTION (0:SHARP/ALPS;1:MURATA) CPT 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 LED BLINK SPEED LED_F VOLUME CONTROL PWM TABLE MSA OUTPUT VERTICAL GUARD NDF
DATA LENGTH INITIAL DATA FIX/ADJ 0~15 12 (8) *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 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 (0) *FIX 0(DISABLE)/1(ENABLE) 1 (0) *FIX 0(DISABLE)/1(ENABLE) 1 *FIX 0(DISABLE)/1(ENABLE) 1 (0) *FIX 0(DISABLE)/1(ENABLE) 0 *FIX 0(DISABLE)/1(ENABLE) 1 (0) *FIX 0(DISABLE)/1(ENABLE) 1 (0) *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 FOR1 AV/1 FOR 2AV 1 (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) 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 0(DISABLE)/1(ENABLE) 0 (1) *FIX 0(DISABLE)/1(ENABLE) 0 (1) *FIX 0(DISABLE)/1(ENABLE) 0 (1) *FIX
REMARK
5
NOTE : 1) *FIX: PLEASE DO NOT CHANGE FIXED DATA WITHOUT SPECIFIC INSTRUCTION. Please set the EEPROM initial data according to the value in parenthesis ( ) before adjustment. 2) *1: ADJUST COLOUR OFFSET AFTER ADJUST SUB-COLOUR. COLOUR OFFSET (PAL) COL-OP : 8 ------ 14 > COLOUR OFFSET (SECAM) COL-OS : 8 ------ 14 > COLOUR OFFSET (NTSC358) COL-03 : 4 ------ 10 > COLOUR OFFSET (NTSC443) COL-04 : 4 ------ 10 >
CX34N3
5-1
5-2
CX34N3
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 46 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 41.10 41.10 41.10 41.10 41.10 41.10 527.25 847.25 48.25 175.25 210.25 224.25 575.25 599.25 767.25 183.25 527.25 112.25 168.25 41.10 294.25 463.25 174.95 175.55 41.10 590.25 41.10 41.10 41.10 41.10 41.10 41.10 174.95 175.55 41.10 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 LAST TV/AV DATA SETTING 1 1 1 AUTO B/G OFF ON 1 (MAX) (CENTER) (CENTER) (CENTER) (CENTER) STANDARD In-active, "--:--" In-active, "--:--" In-active, "--:--" POWER-ON ENGLISH ON OFF ON TV
B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G B/G
6
B/G B/G
"
99
41.10
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 500 µA.
10k
Oscilloscope
Waveform and others
1n60 1000p IF OUT
100k
75ohm
Fig. 1
E-9 CH
P
C
-1.5+/-0.8dB
Fig. 2
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.
Oscilloscope + 0.1V Bias box + » Bias box: About 4.5 V TP201
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
2. Degauss the CRT enough with the degausing coil. Note : Follow the Job Instruction Sheet to adjust 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. 1-1 through the microscope. Adjust the landings to A rank requirement. 5. Orient the raster rotation to 0 eastward. 6. Tighten up the deflection coil screws. » Tightening torque: 108N ± 20 N (11kgf ± 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. * For the following colours press R/C RGB key to change.
Green-only Blue-only Red-only
a
b
Fig. 1-1
A
B A=B
Fig. 1-2 Rank "A" (on the right of the CRT)
7
A
B A=B
Signal-colour screen cleared
TV Set
Fig. 3 3. Call "AGC" mode in service mode. Adjust the "AGC" 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.
Fig. 1-3 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.
CX34N3
7-1
7-2
CX34N3
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. a : Drive the wedge at point "a" and swing the deflection coil upward. b) Fig. b : Drive the wedge at point "b" and "c" and swing the deflection coil downward. c) Fig. c : Drive the "c" wedge deeper and swing the deflection coil rightward. d) Fig. d : Drive the "b" wedge deeper and swing the deflection coil leftward. 2. Fix all the wedges on the CRT and apply glass tape over them. 3. Apply lacquer to the deflection yoke lock screw, magnet unit (purity, 4-pole, 6-pole magnets) and magnet unit lock screw. Waveform and others
BGR B G R
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Remark 1 CRT CUTOFF ADJUSTMENT 1. Before CRT cutoff adjustment, SUB-BRIGHT, DRIRS/RW/RC, DRI-GS/GW/GC, DRI-BS/BW/BC, (I2C BUS CUT-R and CUT-G must be INITIAL DATA. CONTROL) Waveform and others
*Alternative Procedure (1) Step (1), (2), (3) and (4) are same as beside procedure. (2) Then continue adjust until retrace line appear and make sure the colour appear whether red, green or biue. (3) Connect the oscilloscope to related test points as below which is based on colour appear at (2) RED =TP47R, GREEN =TP47G, BLUE = TP47B (4) Then adjust Screen VR until the tip of signal reach 3.3Vdc
3.3VDdc
2. CRT Cutoff adjustment must be done inside a dark room. 1. Switch TV to VIDEO mode,BLUE BACK OFF, with NO VIDEO signal. 2. Press R/C to set Picture Normal condition. 3. First, off the screen by adjust screen variable resistor. *4. Next, checking AKB circuit function by slowly increase screen variable resistor until colour raster suddenly on and off (AKB start function). 5. Then continue adjust until retrace line appear. 6. Finally, slowly decrease the screen variable resistor until screen retrace line cut off (Not Raster) Note : Must confirm the AKB function in set before continue the next adjustment.
Fig. a RGB
R G B
Fig. b
B G R RGB
t 0
2 Fig. c
R G B BGR
SUBBRIGHTNESS ADJUSTMENT (I2C BUS CONTROL) WHITE BALANCE SERVICE MODE ADJ. (I2C BUS CONTROL)
1. Call " SUB-BRI" in service mode. (Receive Cross- 1 hatch pattern with 5 black level windows) 1 2 3 4 5 *(2) Adjust the " SUB BRIGHT " bus data in order that the line 1and 2 have the same darkness wherelse Line 3 is one step (data) brighter than line 2 line 3 is one step (data) brighter than line 2. Finally 2 data minus 1 to make line 1, 2, and 3 are in same 1 2 3 4 5 level (darkness). 1. Receive the "WHITE" pattern with BURST signal. 2. Press R/C to set Picture NORMAL condition. 3. Connect the DC miliammeter between TP602 (-) TP603 (+). 4. Check Beam current should be around 800 µA. 5. Set it to service mode and adjust the DRI-GS, & DRIBS data to have a colour temperature of 12300°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 desired colour temperature #. Then go back NORMAL mode (HIGH BRIGHT**) to check colour temperature. If out of range, back to 1.
3 Fig. d
Wedge "a" About 100° About 100°
# 12300°K
X : 0.272 Y : 0.275
8
Finally received the Red-only and Blue-only signals to make sure there is no other colours on the screen. Note*** CRT CPT CRT TOSHIBA CRT SAMSUNG CRT
(MINOLTA COLOUR ANALYZER CA100) *Note: Above Data can be UP/DOWN by Volume key. LOW 10cd/m2 HIGH 200cd/m2
35mm 35mm 32mm
Lacquer Wedge "b" Wedge "c"
4-pole magnet 6-pole magnet CRT neck
Lacquer Purity magnet
Note***
Note:This adjustment must be done after warming up the unit for 30 minutes or longer with * 12300°K DRI-GW="DRI-GS"-7 a beam current over 500µA. DRI-BW="DRI-BS"-7 DRI-GC="DRI-GS"-7 * Adjust DRI-GC/GW, DRI-BC/BW as following DATA, DRI-RC=25 after finishing DRI-BS and DRI-GS DATA ADJUSTMENT. DRI-RW = 32 (FIXED), DRI-RS = 32 (FIXED) DRI-BC = "DRI-BS" (For 12300° K Condition)
4
Max. beam check
1. Receive the "Monoscope Pattern" signal. 2. Press R/C to set Picture NORMAL condition. 3. Connect the DC miliammeter between TP603 (+) & TP602 (). (Full Scale: 3 mA Range) 4. Beam current must be within 800 ± 100 µA.(14")
8-1
8-2
HORIZONTAL AND VERTICAL DEFLECTION LOOP ADJUSTMENT
NO. Adjustment part 1 V-LIN (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%. 1. Call the "H-CENT" mode. 2. Increase or decrease "H-CENT" by Volume key to center the picture horizontal. 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 thru AV in. 2. Connect the oscilloscope to TP47B (P882 pin 5) BLUE-OUT. : 100mV/div. (AC) (Use Probe 10:1) » Range » 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. 1-1. 4. Clear the SERVICE mode. Waveform and others
SAME LEVEL
2
V-CENT (I2C BUS CONTROL) V-AMP (I2C BUS CONTROL)
W Y Cy G Mg R B
Fig. 1-1
3
PROTECTOR OPERATION CHECKING
NO. Adjustment part 1 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.
4
H-CENT (H-CENTER)
5
S-CORRECTION (I2C BUS CONTROL)
1. SET DATA TO 17 * Check the E-5 CH Monoscope Pattern then readjust V-Slope, V-Shift and V-Amp to makesure adjustment is in acceptable Ring-Shaped. 1. SET DATA TO 20 1. Receive the "Monoscope Pattern" signal. 2. Press R/C to set Picture NORMAL condition. 3. Adjust the focus control to get the best focusing.
2
6 1
SUBSHARPNESS Focus
H, V PROTECTOR
1. Receive "Monoscope Pattern" signal. 2. Connect output of Bias Box to D603 cathode (R610 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
3
Other protectors
PAL CHROMA ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions 1. Receive the "PAL Color Bar" signal. 1 SUB COLOUR 2. Press R/C to set Picture Normal condition. (I2C BUS CONTROL) 3. Connect the oscilloscope to Red cathode(D881 Chathode). » Range : 20 V/div. (AC) (Using 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 Color Bar be at the same level shown as Fig. 1-1. 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 Color 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 O/P 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, AV & TV again and the video & audio output are according to the input terminal for each mode.IF connect input to Front and Rear AV terminal, input terminal of Front AV will be selected.
Waveform and others
W Y 100%W Mg R 75%
Fig. 1-1 2 VIDEO AND AUDIO INPUT CHECK
CX34N3
9-1
9-2
CX34N3
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 4.43/3.58 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
NOISE MUTE CHECKING
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.
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.
10
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 » COLOUR » BRIGHTNESS » TINT » SHARPNESS 8 White Temp : MAX : CENTER : CENTER : CENTER : CENTER Note: If nothing is display mean contrast, colour, bright, tint or sharpness are all in normal setting. 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.
11
OSD LANGUAGE QUANTITY CHECK
Check OSD LANGUAGE quantity and type as English, Russian, Chinese, French, Arabic and Malay.
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
DATA D7 D6 D5 D4 D3 D2 D1 D0
PASS WORD PASS WORD PASS WORD PASS WORD
MICON DEFAULT
EEPROM RANGE
EEPROM
WRITE(CPU)
CHASSIS
CHECK DATA CHECK TYPE
CTV FINAL
CHECK DATA CHECK TYPE
(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
LAST INITIAL 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 G 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 N358) Y-DELAY (AV N443) Y-DELAY (AV BW) COLOUR-OFFSET (PAL) COLOUR-OFFSET (SECAM) COLOUR-OFFSET (N358) COLOUR-OFFSET (N443) SHARPNESS-OFFSET (PAL)
0F 20 20 00 0C 0F 0C 0C 0C 0C 0F 0C 0C 0C 08 08 04 04 08
00-0F 00-3F 00-3F 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
(1) 20th August 2001:Change of range & default.
MODEL
MODEL
LETTER NO.
LETTER NO.
CX34N3
11-2
CX34N3
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
D7
D6
D5
DATA D4 D3
MICON
EEPROM RANGE
EEPROM
WRITE(CPU)
CHASSIS
CHECK DATA CHECK TYPE
CTV FINAL
CHECK DATA CHECK TYPE
D2
D1
D0
DEFAULT
LAST INITIAL SETTING DATA
ADDRESS
DATA D7 D6 D5 D4 D3 D2 D1 D0
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
MICON DEFAULT
EEPROM RANGE
EEPROM
WRITE(CPU)
CHASSIS
CHECK DATA CHECK TYPE
CTV FINAL
CHECK DATA CHECK TYPE
REMARK
(HEX)
80 81 82 83 84 85 86 87 88 89
LAST INITIAL SETTING DATA
REMARK
SHARPNESS-OFFSET (SECAM) SHARPNESS-OFFSET (N358) SHARPNESS-OFFSET (N443) FCO SECAM SM1 HP2 FOB-AV ACL N443 SM0 FSL FOA-AV OSO N358 FMWS RUS FOB-FE EHT PB-SECAM AV FRA FOA-FE EVG BG BTSC CHN AGC1 FFI I HTL MLY AGC0 NDF AVL DK VMC ARB BIL MSA BKS M VMI THA CPT LED-F
04 0C 08 1B DE 53 3E C4 00
00-0F 00-0F 00-0F 00-FF 00-FF 00-FF 00-FF 00-FF 00-F3
(1) 20th August 2001: Added 3 new items.
POS 4
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART)
POS 5 C-SYS POS 6 C-SYS POS 7 C-SYS POS 8 C-SYS POS 9 C-SYS POS 10 C-SYS POS 11 C-SYS POS 12 C-SYS POS 13 C-SYS POS 14 C-SYS POS 15 C-SYS POS 16 C-SYS POS 17 C-SYS POS 18 C-SYS POS 19 C-SYS POS 20 C-SYS POS 21 C-SYS POS 22 C-SYS POS 23 C-SYS POS 24 C-SYS POS 25
S-SYS
AFT
(auto)
TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) TUNING FREQUANCY (HIGHER PART)
8A 8B 8C 8D 8E 8F 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9E
VOLUME CONTRAST COLOUR BRIGHTNESS TINT SHARPNESS
01 3C 1E 1E 1E 1E
00-3C 00-3C 00-3C 00-3C 00-3C 00-3C
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
LAST POWER MODE WHITE-TEMP BLUE BACK LANGUAGE LAST DIGIT MODE (1 OR 2) 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 4 SKIP 12 SKIP 20 SKIP 5 SKIP 13 SKIP 21 SKIP 29 SKIP 37 SKIP 45 SKIP 53 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 00 00 00 00 80 00 00 00 00 00 00 00 00 00 00 00 00
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 B9 BA BB BC
12
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
SKIP 27 SKIP 28 SKIP 35 SKIP 36 SKIP 43 SKIP 51 SKIP 59 SKIP 67 SKIP 75 SKIP 83 SKIP 91 SKIP 99 SKIP 44 SKIP 52 SKIP 68 SKIP 76 SKIP 84 SKIP 92
SKIP 60 SKIP 61
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 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
S-SYS 000:BG 001:I 010:DK 011:M AFT 0:OFF 1:ON
POS 0
POS 1
BD BE BF
POS 2
MODEL
MODEL
POS 3
MODEL
MODEL
LETTER NO.
LETTER NO.
LETTER NO.
LETTER NO.
12-1
12-2
ADDRESS
DATA D7 D6
S-SYS
MICON
EEPROM RANGE
EEPROM
WRITE(CPU)
CHASSIS
CHECK DATA CHECK TYPE
CTV FINAL
CHECK DATA CHECK TYPE
(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
D5
D4
AFT
D3
(auto)
D2
D1
D0
C-SYS
DEFAULT
LAST INITIAL SETTING DATA
ADDRESS
DATA D7 D6
S-SYS
MICON
EEPROM RANGE
EEPROM
WRITE(CPU)
CHASSIS
CHECK DATA CHECK TYPE
CTV FINAL
CHECK DATA CHECK TYPE
REMARK
(HEX)
100 101 102 103
D5
D4
AFT
D3
(auto)
D2
D1
D0
C-SYS
DEFAULT
LAST INITIAL SETTING DATA
REMARK
TUNING FREQUANCY (LOWER PART) 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 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 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 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 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 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 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 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 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 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 TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART)
POS 25 POS 26
POS 46 POS 47
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 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 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 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 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 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 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 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 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 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 TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS
104
POS 27
POS 48
105 106 107
POS 49
POS 28
108 109 10A
POS 50
POS 29
10B 10C 10D
POS 51
POS 30
10E 10F 110
POS 52
POS 31
111 112 113
POS 53
POS 32
114 115 116
POS 54
POS 33
117 118 119
POS 55
POS 34
11A 11B 11C
POS 56
POS 35
11D 11E 11F
POS 57
POS 36
120 121 122
POS 58
POS 37
123 124 125
POS 59
13
E6 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
POS 38
126 127 128
POS 60
POS 39
129 12A 12B
POS 61
POS 40
12C 12D 12E
POS 62
POS 41
12F 130 131
POS 63
POS 42
132 133 134
POS 64
POS 43
135 136 137
POS 65
POS 44
138 139 13A
POS 66
POS 45
13B 13C 13D
POS 67
POS 46
13E 13F
MODEL
MODEL
MODEL
MODEL
LETTER NO.
LETTER NO.
LETTER NO.
LETTER NO.
CX34N3
13-1
13-2
CX34N3
ADDRESS
DATA D7 D6 D5 D4 D3 D2 D1 D0
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 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 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 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 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 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 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 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 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 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 TUNING FREQUANCY (HIGHER PART) TUNING FREQUANCY (LOWER PART) S-SYS AFT (auto) C-SYS TUNING FREQUANCY (HIGHER PART)
MICON DEFAULT
EEPROM RANGE
EEPROM
WRITE(CPU)
CHASSIS
CHECK DATA CHECK TYPE
CTV FINAL
CHECK DATA CHECK TYPE
(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 160 161 162 163 164 165 166 167 168 169 16A 16B 16C 16D 16E 16F 170 171 172 173 174 175 176 177 178 179 17A 17B 17C 17D 17E 17F
LAST INITIAL SETTING DATA
ADDRESS
DATA D7 D6
S-SYS
MICON
EEPROM RANGE
EEPROM
WRITE(CPU)
CHASSIS
CHECK DATA CHECK TYPE
CTV FINAL
CHECK DATA CHECK TYPE
REMARK
(HEX)
180 181 182
D5
D4
AFT
D3
(auto)
D2
D1
D0
C-SYS
DEFAULT
LAST INITIAL SETTING DATA
REMARK
POS 68
TUNING FREQUANCY (LOWER PART) 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 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 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 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 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 89 POS 90
POS 69
183 184 185
POS 91
POS 70
186 187 188
POS 92
POS 71
189 18A 18B
POS 93
POS 72
18C 18D 18E
POS 94
POS 73
18F 190 191
POS 95
POS 74
192 193 194
POS 96
POS 75
195 196 197
POS 97
POS 76
198 199 19A
POS 98
POS 77
19B 19C 19D
POS 99
POS 78
19E 19F 1A0
AV1 (auto) C-SYS AV2 (auto) C-SYS
POS 79
1A1 1A2 1A3
POS 80
1A4 1A5 1A6
POS 81
1A7 1A8 1A9
14
POS 82
1AA 1AB 1AC
POS 83
1AD 1AE 1AF
POS 84
1B0 1B1 1B2
POS 85
1B3 1B4 1B5
POS 86
1B6 1B7 1B8
POS 87
1B9 1BA 1BB
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
DATA D7 D6 D5 D4 D3 D2 D1 D0
MICON DEFAULT
EEPROM RANGE
EEPROM
WRITE(CPU)
CHASSIS
CHECK DATA CHECK TYPE
CTV FINAL
CHECK DATA CHECK TYPE
(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
LAST INITIAL SETTING DATA
REMARK
GA1-AM 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.
HOTEL ON PASSWORD ****
Set vol up/down by R/C key. Input 1, 3, 7 and 9 by R/C key.
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
#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
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.
CX34N3
15-1
15-2
CX34N3
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 ?
Replace the fuse.
Noise increases but no signal is received. No snow noise.
Check T701 pin (11) voltage (Approx. 310V at 220V AC) Check R701, R707
The fuse is again blown out.
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 ?
Check IC701, D701 and C705. Check Secondary Main+B (Approx. 130V)
Does noise or signal appear at pin (38) of IC801 ? Check the tuner AGC at TP201.
Check IC801 and its related circuit.
Check IC702, IC1080, D751
Check CRT connector K1-K5 bias.
D1001 (Power LED Red brightly) turns on.
Check pin (27) of IC801, Tuner and related circuit.
Check R619 and R618.
Check C878.
Check IC801.
D1001 (Power LED Red dimly) turns on or turns ON/OFF.
Check pin(38) of IC801.
Check pin (1) of SF201, Tuner and related circuit. Check pin (37) of IC801 and related circuit.
Check Q253, Q254 and related circuit.
16
Does horizontal circuit oscillate ?
Checking the protector circuit.
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 ? Does signal appear at pins(28) of IC801?
Check Q752 and IC801.
Does signal appear at pins (2) and (4) of IC302 ?
Check C356 and peripheral circuit.
Check IC801.
Check P301, P302, IC301 and peripheral circuit.
Check Q321, pins(4) and (6) of IC801 and peripheral circuit.
16-1
16-2
TROUBLE SHOOTING TABLE (Continued)
TROUBLE SHOOTING TABLE (Continued) NO SPECIFIC COLOUR
Is some colour produced in B/W broadcast reception ?
NEITHER VERTICAL NOR HORIZONTAL SYNCHRONIZATION
CIRCUIT TO BE CHECKED: » Sync. Separator Circuit. Check pins(16), (17) and (34) of IC801.
Check IC801, R801, R802, R803, D804, D805, D806 and Q801.
Is the white balance properly adjusted ?
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. (Bus 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
Check R501, R521, R503, R512, R533 and C533.
NO SPECIFIC COLOUR
"PAL" (NO COLOUR SYNCHRONIZATION)
NO VERTICAL SCAN
Check IC801 and bias control circuit.
Check IC501 bias.
Check X1001(12MHz).
Check C505 and C509.
Check IC501.
CX34N3
17-1
17-2
CX34N3
SOLID STATE DEVICE BASE DIAGRAM
TOP VIEW
8
COLLECTOR
5
4 3
COLLECTOR
ZR
1
BASE EMITTER
:BR:
BASE EMITTER
4
1 2
BR24C04 D601A
FX0008GA B709A
COLLECTOR
64
33
JC
1 32
IX3368CE 2SC2735
BASE
EMITTER
SIDE VIEW
+
BASE COLLECTOR EMITTER
~
~
-
TX0110BM TX0124BM 2SC3198 2SC3207
BASE COLLECTOR EMITTER
DX0476CE
CATHODE ANODE (RED)
1
9
1 2 3
AN7523 KA7808A
B C E
PX0013PE
2SD2586
OUT(Y) VDD 5 4
1 NC
2 IN (Y)
3 VSS
1
2 4 3 5
9
C4S584F STRG5653
AN5522
18
18-1
18-2
CX34N3
-MEMO-
19
CX34N3
WAVEFORMS
1) 1.0 Vp-p
2) 3.00 Vp-p (H)
3) 3.10 Vp-p (H)
4) 3.10 Vp-p (H)
5) 70 Vp-p (H)
6) 78.4 Vp-p (H)
7) 79.2 Vp-p (H)
8) 3.2 Vp-p (V)
9) 2.32 Vp-p (H)
10) 122 Vp-p (H)
11) 8.8 Vp-p (H)
12) 50 Vp-p (V)
13) 110 Vp-p (H)
14) 1100Vp-p (H)
15) 480 Vp-p
16) 28 Vp-p (V)
17) 2.08 Vp-p (V)
20
CX34N3
MODEL CX34N3 CHASSIS LAYOUT
21
CX34N3
BLOCK DIAGRAM:MAIN BLOCK
22
CX34N3
23
CX34N3
BLOCK DIAGRAM
CRT UNIT BLOCK DIAGRAM
24
CX34N3
BLOCK DIAGRAM
HEADPHONE UNIT BLOCK DIAGRAM
BURST UNIT BLOCK DIAGRAM
25
CX34N3
DESCRIPTION OF SCHEMATIC DIAGRAM
SAFETY NOTES:
1. DISCONNECT THE AC PLUG FROM THE AC OUTLET BEFORE REPLACING PARTS. 2. SEMICONDUCTOR HEAT SINKS SHOULD BE REGARDED AS POTENTIAL SHOCK HAZARDS WHEN THE CHASSIS IS OPERATING.
NOTES:
1. The unit of resistance "ohm" is omitted. (K = 1000 ohms, M = Meg ohm). 2. All resistors are 1/10 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 REPLACE 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 HAZARD OF ELECTRIC SHOCK. 1. Colour bar generator signal of 2.0V peak to peak applied at Base of Video Buffer Amp. Q254. 2. Approximately 4.0 V AGC bias.
26
CX34N3
SCHEMATIC DIAGRAM
J
CRT UNIT
I
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
27
CX34N3
MAIN UNIT
J
I
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
28
CX34N3
10
11
12
13
14
15
16
17
18
19
29
CX34N3
J
HEADPHONE UNIT
I
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
30
CX34N3
J
BURST UNIT
I
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
31
CX34N3
PRINTED WIRING BOARD ASSEMBLIES
PWB-A: MAIN UNIT (WIRING SIDE)
J
I
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
32
CX34N3
10
11
12
13
14
15
16
17
18
19
33
CX34N3
PWB-A: MAIN UNIT (Chip Parts Side)
J
I
H
G
F
E
D
C
B
A
1
2
3
4
5
6
7
8
9
10
34
CX34N3
10
11
12
13
14
15
16
17
18
19
35
CX34N3
J
I
H
G
PWB-B: CRT UNIT (WIRING SIDE)
F
E
D
C
B
PWB-B: CRT UNIT (Chip Parts Side)
A
1
2
3
4
5
6
7
8
9
10
36
CX34N3
J
I
H
PWB-C: HEADPHONE UNIT
G
F
E
D
C
PWB-D: BURST UNIT
B
A
1
2
3
4
5
6
7
8
9
10
37
CX34N3
Ref. No. Part No. 5 Description Code REPLACEMENT PARTS LIST Ref. No. Q602 Q603 Q751 Q752 Q753 Q801 Q802 Q804 Q1010 Part No. VS2SD2586//1E VS2PC1815G+-1+ VS2PC1815G+-1+ VS2PC1815G+-1+ VS2SC3928AR-1Y VS2SA1530AR-1Y VS2SA1530AR-1Y VS2SC3928AR-1Y VS2SC3928AR-1Y 5 R R R R R R R R R Description 2SD2586, Horiz Out 2PC1815 2PC1815 2PC1815 2SC3928 2SA1530 2SA1530 2SC3928 2SC3928 Code AM AC AC AC AB AB AB AB AB
PARTS REPLACEMENT
Replacement parts which have these special safety characteristics are identified in this manual; electrical components having such features are identified by "å" in the Replacement Parts Lists. The use of a substitute replacement part which does not have the same safety characteristics as the factory recommended replacement parts shown in this service manual may create shock, fire or other hazards.
"HOW TO ORDER REPLACEMENT PARTS"
To have your order filled promptly and correctly, please furnish the following informations. 1. MODEL NUMBER 3. PART NO. 2. REF. NO. 4. DESCRIPTION
DIODES AND LED'S
D201 D203 D301 D302 D331 D503 D505 D506 D507 D508 D509 D531 D532 D601 D602 D603 D604 D606 D607 D608 D651 D652 D653 D701 D705 D706 D707 D710 D751 D752 D754 D755 D801 D802 D803 D804 D805 D806 D808 D1001 D1003 D1004 D1007 D1012 D1018 D1019 D1024 å IC702 å VA701 RH-EX0676GEZZY RH-DX0045GEZZY VHD1SS119//-1Y VHD1SS119//-1Y RH-DX0302CEZZY RH-DX0045GEZZY RH-DX0441CEZZY RH-EX0630GEZZY RH-DX0045GEZZY RH-DX0131CEZZY RH-EX0660GEZZY RH-EX0627GEZZY RH-EX0627GEZZY RH-DX0048GEZZY VHD1SS244//-1Y RH-EX0667GEZZY VHD1SS119//-1Y RH-DX0131CEZZY RH-DX0045GEZZY RH-DX0468CEZZ RH-EX0627GEZZY RH-EX0253TAZZY RH-DX0045GEZZY RH-DX0476CEZZ VHD1SS82///1AY VHD1SS82///1AY VHD1SS82///1AY VHD1SS119//-1Y RH-DX0229CEZZ RH-DX0131CEZZY RH-EX0616GEZZY RH-EX0603GEZZY VHD1SS119//-1Y RH-DX0045GEZZY RH-DX0045GEZZY RH-DX0045GEZZY RH-DX0045GEZZY RH-DX0045GEZZY RH-EX0610GEZZY RH-PX0013PEZZ VHD1SS119//-1Y VHD1SS119//-1Y RH-EX0263TAZZY RH-EX0611GEZZY RH-EX0263TAZZY RH-EX0263TAZZY VHD1SS119//-1Y RH-FX0008GEZZ RH-VX0073CEZZ 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 Zener Diode, 33V DX0045GE 1SS119 1SS119 DX0302CE DX0045GE DX0441CE Zener Diode DX0045GE DX0131CE Zener Diode, 22V Zener Diode, 8.2V Zener Diode, 8.2V DX0048GE 1SS244 Zener Diode, 27V 1SS119 DX0131CE DX0045GE DX0468CE Zener Diode, 8.2V Zener Diode, 3.3V DX0045GE DX0476CE 1SS82 1SS82 1SS82 1SS119 DX0229CE DX0131CE Zener Diode, 5.6V Zener Diode, 3.9V 1SS119 DX0045GE DX0045GE DX0045GE DX0045GE DX0045GE Zener Diode, 4.7V Photo Diode 1SS119 1SS119 Zener Diode Zener Diode, 5.1V Zener Diode, 8.3V Zener Diode, 8.3V FX0008GE PC123FY8 Varistor AA AA AA AA AC AA AC AA AA AC AB AA AA AA AB AA AA AC AA AE AA AC AA AG AC AC AC AA AF AC AA AA AA AA AA AA AA AA AA AC AA AA AC AA AC AC AA AE AD
MARK Ref. No.
: SPARE PARTS-DELIVERY SECTION. Part No. 5 Description Code
PICTURE TUBE
L703 RCiLG0095PEZZ QEARC1422PEZZ LHLDW0003PEKZ MSPRT0001PEFJ RCiLH0220PEN1 PMAGF3045CEZZ VB370BVBK1S-S R R R R R R R Degaussing Coil Ground-Part ADG Coil Holder CRT Spring Deflection Yoke Magnet Picture Tube AH AD AB AC AY AG BT
å DY601
PRINTED WIRING BOARD ASSEMBLIES (NOT REPLACEMENT ITEM)
PWB-A PWB-B PWB-C PWB-D DUNTKB508WEB0 DUNTKB509WEB0 DUNTKB510WEA3 DUNTKA695WEA1 Main Unit CRT Unit Headphone Unit Burst Unit -- -- -- --
DUNTKB508WEB0 PWB-A MAIN UNIT
TUNER
NOTE: THE PARTS HERES SHOWN ARE SUPPLIED AS AN ASSEMBLY NOT INDEPENDENTLY. å TU201 VTUCTF5511+++ R Tuner AZ
INTEGRATED CIRCUITS
å IC501 IC302 IC601 IC701 IC801 IC1005 VHiAN5522++-1 VHiAN7523++-1 VHiKA7808AP-1 VHiSTRG5653-1 RH-iX3368CEN6 VHiCAT24W04-1 R R R R R R AN5522++, Vert Out AN7523++ KA7808AP STRG5653 IX3368CE AT24W04 AH AH AE AQ BE AE PR702 X1001
PACKAGED CIRCUITS
RMPTP0028CEZZ R Packaged Circuit RCRSB0300CEZZ R Crystal, CRSB0300CE AG AF
COILS
CF253 SF201 RFiLC0463CEZZ RFiLC0442CEZZ R Filter, FiLC0463CE R Filter, FiLC0442CE AD AL
TRANSISTORS
Q253 Q254 Q302 Q321 Q352 Q501 Q601 VS2SC3928AR-1Y VS2SC3928AR-1Y VS2SC3928AR-1Y VS2SC3928AR-1Y VS2SC3928AR-1Y VS2PC1815G+-1+ VS2SC3207//-1+ R R R R R R R 2SC3928A 2SC3928A 2SC3928A 2SC3928A 2SC3928A 2PC1815 2SC3207, Horiz Driver AB AB AB AB AB AC AC L202 L203 L253 å L701 L751 L802
FILTERS
VP-DF270K0000 VP-DF270K0000 VP-XF100K0000 RCiLF0086PEZZ RCiLP0225CEZZ VP-DF100K0000 R R R R R R Peaking, 27µH Peaking, 27µH Peaking, 10µH Coil, CiLF0086PE Coil, CiLP0225CE Peaking, 10µH AB AB AB AH AF AB
38
CX34N3
Ref. No. L803 L1030 L1050 L1051 å T601 å T602 å T701 Part No. VP-DF100K0000 VP-DF100K0000 VP-DF100K0000 VP-DF100K0000 5 R R R R Description Peaking, Peaking, Peaking, Peaking, 10µH 10µH 10µH 10µH Code AB AB AB AB Ref. No. C658 å C701 C702 C703 C704 C705 C709 C710 C711 C712 å C751 C752 C753 C754 C755 C756 C759 C760 C801 C803 C804 C805 C806 C807 C808 C809 C810 C811 C812 C813 C814 C816 C1001 C1002 C1003 C1004 C1005 C1006 C1008 C1009 C1010 C1011 C1012 C1013 C1014 C1016 C1018 C1019 C1024 Part No. VCKYCY1EF104Z RC-FZ031SCEZZ RC-KZ0029CEZZ RC-KZ0029CEZZ RC-KZ0029CEZZ RC-EX1286CEZZ RC-KZ0039CEZZ VCEA0A1HW107M VCKYPA1HB102K VCKYPA1HB471K RC-KZ0106GEZZ VCKYPH3DB561K RC-EZ0724CEZZ RC-EZ0638CEZZ VCEA0A1CW108M VCQYTA1HM103J VCEA0A0JW477M VCEA0A0JW228M VCEA0A1HW105M VCEA0A1CW107M VCKYCY1HB222K VCKYD41HB102K VCKYD41HB102K VCKYD41HB102K VCEA0A1CW107M VCKYCY1CF474Z VCKYCY1CF474Z VCEA0A1CW107M VCFYFA1HA224J VCFYFA1HA224J VCKYCY1HB471K VCKYCY1HB471K VCEA0A0JW107M VCEA0A0JW107M VCEA0A1CW106M VCKYCY1CF474Z VCKYCY1CF474Z VCEA0A1CW106M VCCCCY1HH330J VCCCCY1HH330J VCEA0A0JW107M VCKYCY1CF474Z VCKYCY1CF474Z VCEA0A0JW107M VCEA0A1CW106M VCQYTA1HM104J VCKYCY1HB221K VCEA0A1HW225M VCQYTA1HM104J 5 Description Code AA AD AC AC AC AB AB AA AA AG AC AG AG AD AA AC AD AB AC AA AA AA AA AC AB AB AC AB AB AA AA AB AB AB AB AB AB AA AA AB AB AB AB AB AA AA AB AA
TRANSFORMERS
RTRNZ0144PEZZ R Transformer RTRNF0228PEZZ R H-Volt Transformer RTRNW0015PEZZ R Transformer AE AX AL
CAPACITORS
C201 C202 C203 C204 C205 C206 C231 C232 C233 C234 C251 C252 C301 C304 C306 C310 C311 C312 C316 C331 C332 C333 C352 C354 C356 C359 C360 C409 C410 C411 C412 C501 C504 C505 C507 C508 C509 C510 C514 C514 C529 C531 C532 C533 C601 C602 C603 C604 C605 C606 C607 C608 C610 C611 C612 C620 å C640 C651 C652 C653 C654 C655 C656 C657 VCEA0A1CW476M VCEA0A1AW337M VCKYCY1HF103Z VCEA0A0JW477M VCKYCY1HF103Z VCEA0A1HW106M VCKYCY1HF223Z VCKYCY1HB821K VCKYCY1HB472K VCKYCY1EF104Z VCKYCY1HF223Z VCEA0A1CW107M VCEA0A1CW477M VCEA0A1CW106M VCEA0A1CW106M VCEA0A1HW105M VCEA0A1HW105M VCEA0A1HW224M VCEA0A1CW107M VCKYPA2HB102K VCQYTA1HM103J VCEA0A1CW108M VCEA0A1CW106M VCEA0A1CW106M VCKYCY1HB472K VCEA0A1CW106M VCE9GA1HW225M VCKYCY1CF474Z VCKYCY1CF474Z VCKYCY1HB102K VCEA0A1CW477M VCKYPA1HB102K VCKYCY1HB103K VCEA0A1HW107M VCKYCY1HB103K VCFYSA1JB224J+ VCEA0A1CW477M VCKYPA2HB102K VCFYSA1JB473J VCFYSA1JB563J+ VCKYCY1CB823K VCKYCY1HB102K VCKYCY1HB102K VCQYTA1HM104J VCQYTA1HM563J VCEA0A1HW475M VCEA0A1HW105M VCEA0A2EW106M VCKYPA2HB102K VCFPFA2EB334J VCFPFD3ZA532H VCKYPA2HB102K VCEA0A1CW108M VCEA0A1EW476M VCEA0A1CW477M VCKYPA2HB102K VCFYSB2EB823J VCQYTA1HM222J RC-QZA472TAYJ VCEA0A1HW105M VCKYCY1HF223Z VCEA0A1HW106M VCEA0A1HW474M VCKYCY1EF104Z 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 47 16V Electrolytic 330 10V Electrolytic 0.01 50V Ceramic 470 6.3V Electrolytic 0.01 50V Ceramic 10 50V Electrolytic 0.022 50V Ceramic 820p 50V Ceramic 4700p 50V Ceramic 0.1 25V Ceramic 0.022 50V Ceramic 100 16V Electrolytic 470 16V Electrolytic 10 16V Electrolytic 10 16V Electrolytic 1 50V Electrolytic 1 50V Electrolytic 0.22 50V Electrolytic 100 16V Electrolytic 1000p 500V Ceramic 0.01 50V Mylar 1000 16V Electrolytic 10 16V Electrolytic 10 16V Electrolytic 4700p 50V Ceramic 10 16V Electrolytic 2.2 50V Electrolytic 0.47 16V Ceramic 0.47 16V Ceramic 1000p 50V Ceramic 470 16V Electrolytic 1000p 50V Ceramic 0.01 50V Ceramic 100 50V Electrolytic 0.01 50V Ceramic 0.22 63V Mylar 470 16V Electrolytic 1000p 500V Ceramic 0.047 63V Mylar 0.056 63V Mylar 0.082 16V Ceramic 1000p 50