Samsung CX528ZSE Service Manual Download

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Summary of Contents for CX528ZSE

Page 1: ...w the a Safety Precaution and Product Safety Notice in this Service Manual SPECIFICATIONS Television System PAL SECAM PAL SECAM SECAM Bend B G D K VHF PAL SECAM SECAM 8 G D K Colour Sub carrier 34 47...

Page 2: ...safety characteristics as specified in the parts list may create shock fire X ray radiation or other hazards SERVICE NOTES 1 When replacing parts or circuit boards clamp the lead wires to terminals be...

Page 3: ...t thoroughly familiar with the precautions necessary when working on high voltage equipment b Alway discharge the picture tube anode to the re ceiver chassis to keep off the shock hazard before removi...

Page 4: ...nt properly Use of equipment that does not meet these requirement may result in improper alignment Correct matching of the equipment is essential Failure to use the proper matching will result in resp...

Page 5: ...EQUIPMENT 2 1 1 Sweep Marker generator 2 1 2 Monitor scope or Oscilloscope 2 1 3 D C Power Supply 16 5Y 2 1 4 Bias Supply 4V 4 5V 2 1 5 Matching Pad See Figure 3 2 1 6 Direct probe 2 2 CONNECTIONS MO...

Page 6: ...o TP 16 on main board 2 3 6 Apply 4V 4 5V bias to terminal TP 14 on main board 2 3 7 Gradually increase or decrease the output of sweep marker generator to obtain the 1 0Vp p response curve on the sco...

Page 7: ...rker generator 3 1 2 Monitor scope 3 1 3 D C Power supply 16 5V 3 1 4 Bias Supply 4V 4 5V 3 1 5 Direct probe and Matching pad Figure 5 3 1 6 Damping Resistor 100 OHM 3 2 CONNECTIONS MONITOR SCOPE SWEE...

Page 8: ...Ti and T2 IC101 20 19 3 3 7 Apply 16 5 volts bias to terminal TP 16 on main board 3 5 8 Apply 4V 4 5 volts bias to terminal TP 14 on main board 3 3 9 Gradually increase or decrease the output of sweep...

Page 9: ...g pad to test point of tuner 4 2 4 Connect the monitor scope with direct probe to terminal TP 17 4 2 5 Put the AFC switch OFF except remote control model 4 2 6 Gradually increase or decrease the outpu...

Page 10: ...6 1 4 Turn the fine tuning control for indication of the clearest picture STEP Adjust the focus control on FBT T444 for well defined scanning lines in the center area of the screen 7 VERTICAL HEIGHT A...

Page 11: ...st Burst clean trimmer C506 and DL Matching coil L504 to be minimum venetion blind effect 9 3 3 If Venetian Blind Effect appears after this adjustment repeat above STEP1 and 2 Figure 7 METHOD 2 1 Rece...

Page 12: ...l degaussing coil 10 2 2 Turn the CONTRAST and BRIGHTNESS controls the maximum 10 2 5 Adjust RED and BLUE CUT OFF controls VR504 and VR502 to provide only a green raster 10 2 4 Advance the GREEN CUT O...

Page 13: ...6 Pole magnet 4 Pole magnet 2 Pole magnet Convergence magnet assembly Figure 11 VERTICAL GREEN BAND Figure 12 13...

Page 14: ...ole magnets to change the angle between them and superimpose red and blue vertical lines in the centre area of the screen Turn the both tabs at the same time keeping the constant angle to superimpose...

Page 15: ...et the blue and green drive controls to mechanical center position Set the screen VR control on FBT to minimum position fully counter clockwise Temporarily slide the service switch SW201 on main board...

Page 16: ...ke temporerily in place Put other wedge into bottom space and remove the cover paper to stick Tilt front of the yoke right or left to obtain better convergence in circumference Keep the yoke position...

Page 17: ...EDGE SILICON BOND ADHESIVE TAPE COVER PAPER Figure 15 RUBBER WEDGE TEMPORARY MOUNTING 120 DEFLECTION YOKE PURITY AND CONVERGENCE MAGNET ASSY Yr es 3imm 1 3 16 GLASS CLOTH TAPE Figure 16 RUBBER WEDGES...

Page 18: ...B BRIGHTNESS ADJUSTMENT EQUIPMENT V T V M or digital voltmeter PREPARATION 15 2 1 Receive philips colour pattern 15 2 Set the contrast and colour controls to minimum postition brightness control to ma...

Page 19: ...NMENT SECAM Colour Ident Alignment _ 16 2 1 Connect the probe of the scope to IP 71 16 2 2 Adjust LN52 Ident Det Coil so that DC voltage is maximum SECAM chroma DET Coil alignment __ __ _ 16 3 1 Conne...

Page 20: ...REPARATION 17 2 1 Receive some pattern which hes the sound frequency of 4G0Hz or 1KHz STEPS 17 3 1 Connect a audio analyzer or distortion meter with a decade resistance box 17 3 2 Connect the decade r...

Page 21: ...l which resonates with the capa citance of the SAW filter and the IC101 to provide maximum gain at the IF center frequency At the same time the impedance is adjusted to a level which will give the pro...

Page 22: ...ation 3 High speed AGC voltage generation for IF amps and tuner RF amp 4 AFT detection and generation for correction voltage 5 SIF limiting amplification 6 FM quadrature detection for providing wide f...

Page 23: ...and the noise inverter circuit within IC101 through a part of the video amplifier C Video amplifier The video amplifier consists of a buffer amplifier and an emitter follower output amplifier Pin 22 o...

Page 24: ...AGC from Pin 13 is 9V and the minimum is OV R102 and R103 comprise a voltage divider Both of IF AGC and RF AGC are the reverse AGC type so that the output voltage decreases when the input level incre...

Page 25: ...r frequency but with the DC operating vol tages reduced so that the limiter operates as a saturated amplifier B FM detector The output of the limiter amplifier is applied to the FM detector internally...

Page 26: ...in order to prevent the in terferences between each section Refer to the Fig 11 Firstly the Vcc lines are divided into two sources One of them is the 12V line of Pin 2 for the video chroma subsystem...

Page 27: ...NTRAST OUT C 2 vec o 41 CONTRAST CONTROL 3 ES iq oO z ee 23 8 _e INV OUT yeoO 39 INV IN H PULSE IN GATE PULSE OUT L UNICOLOR Mi SW ca el 37 SYNC SEP IN E 14 CHROMA AMP GEOROEOLS ce BPA 36 SYNC SEP OUT...

Page 28: ...Voltage V4MAX V5MAX Vec V V7MAX VO9MAX It MAX Ig MAX 110 MAX 113 MAX RATING 5 tv 0 ma 5 Vp p CHARACTERISTIC Supply Voltage Horiz Supply Current Max Input Signal Level Term 1 Max Output Current Term 8...

Page 29: ...T OUTPUT V42 V VIDEO OUTPUT V23 V CHROMA OUTPUT V8 mVp p CONTRAST AMP DC CHARACTERISTICS acai ciud Am ohCOE EaReeee a Ets pect r Bae a ais Ps ie ae ele i aa i an oi 0 2 4 6 8 10 INVERTER INPUT V39 V P...

Page 30: ...ee 0 2 4 6 8 10 12 40 9 OPEN V9 6V ENT TT COLOR CONTROL V7 V VS 120mVp p fo2 oO 0 2 4 6 8 10 DC CHARACTERISTICS HUE CONTROL VOLTAGE V DEMO OUTPUT CHARACTERISTICS NTSC DEMO DC OUTPUT V SUPPLY VOLTAGE V...

Page 31: ...As a result the 6 5MHz intercarrier sound is removed from the composite video signal The frequency spectrum of this trap output is shown in Fig 14 L201 Response aes Equivalent jcircuit of I 2201 Icer...

Page 32: ...clamp means keeping the pedestal level of the video signal at the DC constant voltage of Pin 4 So the pedestal control determines the sensitivity to black and dark gray For instance if the voltage of...

Page 33: ...s power than earlier designs for the same gain and bandwidth so no additional heat sink for each output TR s is required at the collector tabs This P 54S_ series chassis has the service swithch SW201...

Page 34: ...ig 15 U esd BIS 3siNd YOVEAT4 40 09 1up y0700 INN 40109 dWY VAOYHO ISLN TWd XIMLVN OSLN Wd pe at en QO AZL a WOSY 7269 egg 7g 19089 G0S9 0zs9 99 LNOD 40709 gosus CV cos LOSU A TWNOI S Lo3ul d _ TOV TH...

Page 35: ...he color control 0 8 PIN 8 CHROMA BURST OUTPUT Vp p 0 O02 04 06 08 CHROMA BURST INPUT Vp p PIN 5 Fig 16 ACC Characteristics 2 Chroma amplifier The output from the first chroma bandpass amplifier is in...

Page 36: ...or normalizes the phase of the flip flop driven by the horizontal flyback pulse when in PAL mode Pin 12 is the terminal of a time constent of the killer and indent detector and the DC level to the de...

Page 37: ...on of the TA7698AP KA2154 includes a sync seperator a sawtooth type horizontal AFC horizontal oscillator a horizontal pre driver a vertical oscillator and a vertical pre driver The GND line of this se...

Page 38: ...emal gate pulse generation Composite Video signal Pin 36 Wave form Internal Gate Pulse to t1 t2 t 2 Fig 20 The waveform at Pin 36 The rising edge of the gate pulse t1 is determined internally but litt...

Page 39: ...lse will have the same timing as the sync pulse The ripple wave of Pin 35 AFC phase detector output is integrated by an external CR circuit R410 C404 and this filtered error voltage DC is fed to the h...

Page 40: ...the same time the threshold level is switched to Vi Then the voltage across C403 has discharged down to the low threshold level through the internal Ro As soon as the voltage across C403 reaches to t...

Page 41: ...tage This flyback pulses are rectified and filtered to provided anode voltage of 23KV 25KV for the picture tube 175V for the video output stage 24V for the vertical output IC and 16 5V for the other I...

Page 42: ...charge w Vertical Out Fig 26 Vertical ramp generator 8 Vertical drive amplifier The sawtooth voltage of the ramp generator is amplified in the vertical drive amplifier inside IC501 and then the output...

Page 43: ...also changes the vertical height VOUT KES a NFB amplifier deag I I Ramp I J I V conversion NFB B circuit Fig 27 Vertical section 9 Vertical output circuit The internal block diagram and waveforms of I...

Page 44: ...top half of the raster the path of the deflection current is 24V line D301 Pin 4 IC vertical output stage C356 DY And at scanning the other half the path of the deflection current is C356 IC Vertical...

Page 45: ...tion coils to modify the scanning with a waveform that compensates for the top and bottom pincushion distortion of raster and also that provides vertical scan ning signal to the left and right pincush...

Page 46: ...e Av YWOYHO B Y DISCRIMINATOR COIL YOLYNIWIYOSIC INI YOLVINGOWS0 YalsNd NV YOLOIIIS INQ B Y DEMODULATED B Y DC OUTPUT REGENERATION SUPPLY VOLTAGE B Y OUTPUT e G Y DC 6 S REGENERATION R Y DISCRIMINATO...

Page 47: ...emarks vi 6 4 ND nNGW attie Non a o io nN 2 Ww NO Nm RO Oo olen an N on _ NI WwnN W Pe a ae W an WGNS Oo Ww fo wl w fo2 oT rl oo s oj o m hr io co RO Ss2 ip The content of blank marked above is the sa...

Page 48: ...SIGNAL INPUT Y eo e BLANKING COL SUPPLY PAL B Y DEMODU FF DRIVE SATURATI VOLTAGE LATED SIGNAL PRO sae Oat Coll R Y DEMO SECAM B Y COLOR DELAYED COLOR DISCRIMINATOR SUPPLY DULATED DEMODULATED SIGNAL OU...

Page 49: ...SIGNAL B Y Chroma Ident Signal ICNO1 a7 Ge M51397 AP Q501 R Y we Bell Filter QO WwW 2 Delayed Chroma Signal 1H OL PAL NTSC Matrix 6G 1C501 ee BPA TA7698P LA7520 i Composite Video Signal PAL NTSC Syste...

Page 50: ...ent Matrix Chroma Gate LFF System SW R Y Sein B Y Disc R Y Disc a b OY mo ICNO1 M51397 AP Direct Chroma Signal Cag Burst Chroma Signal te had 1 ST 1C501 A TA7698P PAL NTSC Chroma AMP System PAL NTSC M...

Page 51: ...WAVEFORMS IC501 WHEN RECEIVING 7 STEP COLOR PAL 20my 860 mV p p 220 mV p p 1 6 Vp p N 500 mVp p 51...

Page 52: ...WAVEFORMS IC501 WHEN RECEIVING 7 STEP COLOR PAL 52...

Page 53: ...WAVEFORMS IC501 WHEN RECEIVING 7 STEP COLOR PAL 53...

Page 54: ...WAVEFORMS IC501 WHEN RECEIVING 7 STEP COLOR PAL 8610 V p p VERTICAL 54...

Page 55: ...WAVE FORMS IC501 WHEN RECEIVING 7 STEP COLOR PAL 55...

Page 56: ...WAVE FORMS IC301 Say 1 5 Vp p 56...

Page 57: ...WAVEFORMS ICNO1 WHEN RECEIVING THE SECAM SIGNAL 57...

Page 58: ...WAVE FORMS ICNO1 WHEN RECEIVING THE SECAM SIGNAL ee SQes Bo ue 58...

Page 59: ...WAVEFORMS ICN01 WHEN RECEIVING THE SECAM SIGNAL 700 mV p p 59...

Page 60: ...ANOTHER WAVEFORMS 100m T402 INPUT 4 2 Vp p KB 140 Vp p KG 145 Vp p 60...

Page 61: ...6 6 DOWN signet DOWN H 5 UP signl UP H 4 8 NC 9 ff Ones LED display ant aH es H SYNC input H SYNC H 0 12 Tuning voltage Vt D A MUTE control MUTE T7 Sg Te St Ts Se T4 S Ts 18 Se T2 19 Sb T1 Se To LED...

Page 62: ...4 bit digital information JO and Ji Band control output These are control band signal output terminals for a tuner Assignment for bands is as follows TABLE 62 CNT and COL Contrast control output and c...

Page 63: ...modes mode 0 mode 3 Operation in each mode is as follows V1 Range of just tuning Range of just tuning fs UP signal DOWN signal Synchrono s UP search Escaping station a Mode 0 Detecting synchronous ye...

Page 64: ...rite cycles 105 times min a Number of read access unrefreshed 10 times min 5V 1 0 interface PIN CONFIGURATION TOP VIEW 5V Vss W NC OV Veno 1 0 Data input output cs M58655P NC NC NC LOCK INPUT CLK C3 M...

Page 65: ...nnels up down Pressing the channel volume fine If keyboard input voltage has of Fine turning up down button check RICO1 5V but it doesn t deliver to up down Volume The Pin 36 41 of RICO1 are keyboard...

Page 66: ...al ranges and superior voltage stability during high load change 1 Features Direct control of switching transistor Low start up current Reversing linear overload characteristic Collector current propo...

Page 67: ...10K J RD 1 4T 10K J RD 1 4T 10K J RD 1 4T 10K J RD 1 4T 10K J RD 1 4T 10K J RD 1 4T 10K J RD 1 4T 10K J RD 1 4T 10K J RD 1 4T 10K J RD 1 4T 100K J RD 1 4T 100K J RD 1 4T 100K J RD 1 4T 100K J RD 1 4T...

Page 68: ...1 4T 3 6K J RD 1 4T 3 6K J RD 1 4T 3 6K J RD 1 4T 3 6K J RD 1 4T 3 6K J RD 1 4T 3 6K RD 1 4T 36K J Schematic Location 68 Supplier Part No 31018 277 391 31018 277 391 31018 277 391 31018 277 392 31018...

Page 69: ...68 J RS 1T 15K J RS 1T 15K J RM 1 4T 28K F RM 1 4T 43K G RM 1 4T 43K G RS 1P 1 2K J RS 2P 12K J RS 3P 2 7K J RM 1 2T 91K F RS 2N 0 68 J RM 1 4T 15K G Schematic Location Supplier Part No Description 69...

Page 70: ...V 0 001M J CQ921M 100V 0 0015J CQ921M 100V 0 0015J CQ921M 100V 0 0056M J CQ921M 100V 0 0056M J Schematic Location 70 Supplier Part No 31507 121 140 31507 121 140 31507 121 140 31507 121 150 31507 121...

Page 71: ...CEO4W 16V 1000u CEO4W 16V 1000z CEO4W 16V 470M CE04W 25V 100M CE04W 25V 470M CE04W 25V 2200M CE04W 25V 2200M CE04W 35V 100M CEO4W 35V 220M CEO4W 35V 220M CEO4W 35V 470M Schematic Location 71 Supplier...

Page 72: ...TAPG 1N4148 TAPG EQA 02 12B EQA 02 12B P2462 J29 PTH451C02BG360N270 10nH K 8 2uH M 1pH M 33nH K 33nH K 200nH K 3 9nH K 1 3nH K 100nH 0 5A Schematic Location L811 L806 L802 L807 L803 L461 L801 L401 X2...

Page 73: ...ASSY NO 3D33 00213 300 Schematic Supplier Description Location Part No p Description KPT 1106 4 ASSY POWER CORD KPT 1106 KPT 1106 P801 33053 816 580 KKP 419C KLCE 2F F BLK KPT 1106 CNP801 33059 103 14...

Page 74: ......

Page 75: ...F S 32199 101 020 MODULE REMOCON 36001 462 010 CABINET BACK 37624 153 210 KNOB PUSH B 37624 153 130 KNOB POWER 677 SILK 36674 136 910 SPRING COIL 37623 121 740 KNOB BASE PAL 3D33 00213 300 ASSY PWB C...

Page 76: ...B G SECAM B G hevtimse cigs wor ayer vw sory fasos CODE NO 38104 182 790 me we 60 Pages oe REMOTE CONTROL 100 0 Se ea R100 C161 ye Bee FILTER ces7 J i tee oe ie Po ae a okie ths ta 2 sv 9 1K 2sciais...

Page 77: ...1555 1 C609 R620 ress 106 DIE 1492H 818380 DIE 19926L a 4 0 lal 7 R 6 gy FCG 144SEL FCG 20458L as03 KSC er oe Tat the ea tone I 2scia1 CLAMP T CRT CRT Ec10s Ec104 IcNot 103 S10 9F gbiaciar 3701822 A37...

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