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TCL SY33 Service Manual

Summary of SY33

  • Page 1

    Tcl service manual crt chassis sy33 1、 caution………………………………………………………………………2 2、 specification…………………………………………………………………6 3、 alignment procedure……………………………………………………… 8 4、 block diagram…………………………………………………………… 13 5、 circuit theory introduction………………………………………………14 6、 troubleshooting ………………………………………………………16...

  • Page 2: Caution

    Warning: to reduce risk of fire or electric shock, do not expose this appliance to rain or moisture. Ca ution: to reduce the risk of electrical shock, do not remove cover (or back). No user serviceable par ts inside. Refer ser vicing to qualified service personnel. The lighting flash with arrowhead ...

  • Page 3: For Your Personal Safety

    3 for your personal safety 1. When the power cord or plug is damaged or frayed, unplug this television set from the wall outlet and refer servicing to qualified service personnel. 2. Do not overload wall outlets and extension cords as this can result in fire or electric shock. 3. Do not allow anythi...

  • Page 4

    4 protection and location of your set 11. Do not use this television set near water ... For example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a wet basement, or near a swimming pool, etc. Never expose the set to rain or water. If the set has been exposed to rain or water, unplug th...

  • Page 5: Operation Of Your Set

    Operation of your set 18. This television set should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply at your home, consult your television dealer or local power company. For television sets designed to operate from batter...

  • Page 6

    2、specification sy33 sy33 s.America apac/russia crt matching crt size 21" 21" slim crt √ √ pal pal(bg dk i) ★√ pal(m n) √ secam ★√ ntsc √ d/k ★√ b/g ★√ i ★√ m √ m/n √ global nicam german stereo btsc sound effect woofer teletext v-chip/ ccd ★√ mono(av) stereo(av) pal √ √ pal(m n) ntsc √ √ secam ac 90...

  • Page 7

    Ypbpr ★√ ★√ hdmi language english/portuguese/french/ spanish (1)english/russian/arabic; (2)english/vietnamese/thai；★ thai bilingual digital module dvb-t / atsc.

  • Page 8

    3、alignment procedure method for entering factory mode： a. Production mode: press the key [fac] in remote control to enter or exit factory mode(but only display 4 pages); b. Engineer mode: press key [display] to display channel information（setup for display picture on bottom left of screen, press th...

  • Page 9

    H-blk l 0 0…7 h-blk r 3 0…7 h-size 0…63 h.Size comp/50 0…7 trape/50 0…63 parabolao/50 0…63 u.Corner top/50 0…15 u.Corner btm/50,60 0…15 *** page 2 ****** init range h.Phase/60 15 0…31 h-blk l 0 0…7 h-blk r 3 0…7 h-size 0…63 h.Size comp/60 0…7 trape/60 0…63 parabolao/60 0…63 u.Corner top/60 0…15 u.Co...

  • Page 10

    Opt-svideo yes no/yes opt-dvd yes no/yes opt-av3 no no/yes america n/s usa/（n/s） tune-speed 3 0…3 ch6 band 0 0/1 *** page 6 ****** init range osd theme 0 0…7 opt-logo 0 0/1 half tone 1 0…3 *** page 7 ***chroma init range col-auto on on/off col-ntsc on on/off col-pal/m on on/off col-pal/n on on/off c...

  • Page 11

    *** page 11 ***pic. Init range blk.Str.Start 0 0…3 blk.Str.Gain 3 0…3 *** page 12 ***pic. Init range brt.Abl.Def 1 0/1 mid.Stp.Def 1 0/1 brt.Abl.Th 7 0…7 coring gain 0 0…3 wpl ope.Point 2 0…3 y gamma 2 0…3 dc.Rest 2 0…3 col.Killer ope. 4 0…7 rgb temp sw 1 0/1 *** page 13 ***pic. Init range sh adjust...

  • Page 12

    Opt-abl.P off off/on abl-low limit 63 0…63 *** page 16 ***if init range over.Mod.Sw off off/on over.Mod.Level 2 0…15 pre-shoot adj 0 0…3 over-shoot adj 0 0…3 video level 7 0…7 video.Lvl.Offset 2 0…3 s.Trap adj 4 0…7 if vco adj 2 0…3.

  • Page 13

    4、block diagram i 2 c bus screen focus q401 t401 q402 t402 fbt q502/q504/ q506 video preamplifier ic301 la78041 v-amplifier z101 saw lbn3 383 ir1001 key board av1 s video y c av2 ycbcr av out av1 audio r/l av2 audio r/l scart signal av audio out ±14v 220v 6.3v hv v scan h scan ic001 24c16 eeprom 63 ...

  • Page 14

    5、circuit flow introduction 1)、chassis summarize the main chip of sy33 chassis adopt ic la76933 of sanyo company ,audio power amplifier adopts ic la42352,power supply adopts ic strw6553, and vertical scan amplifier adopts ic la78041.The chassis has low cost and steady function, it has been adopts fo...

  • Page 15

    Video signal of av2 from pin4of p901 is sent to pin54 of ic201 to decode process. Sound signals of av2 from pin5 and pin6 of p901 is sent to pin1 and pin 12 to choose signal,.After being choosed, the signal flow same as tv sound. 3) high-definition signal flow. Y signal from pin7 of p901 enters pin4...

  • Page 16

    Check if 112v is short to ground? Led ok,no picture, no sound replace q402 check ic201 power supply +5v ok? Check which branch short to ground and repairing check waveform of x001ok? The waveform of sda and scl ok? The waveform of h-out of ic 201 ok? Check +5va ok？ check if 18v is short to ground? R...

  • Page 17

    No led,no picture 300v ok? Check d801-d804, rt801,c806 replace check d801-d804,q815 f801 ok? Check q815, ic801 and ambient parts replace y y n n no sound,picture ok check which channel no sound ic 901sound output ok? Check ic601 or ambient parts replace tv no sound av no sound replace ic901 or repai...

  • Page 18

    7ÿschematic diagram.

  • Page 19

    La76933 7x(x:j∼n)/la76933 7fb tentative Ｎｏ．72 la76933 内部結線 pin assignment internal connections pin function pin function pin function pad name 1 sif output 64 vif input1 bip μcom 2 vif agc 63 vif input2 pint01 c_sync psync p33 3 sif input 62 if ground pint02 clock pcl p32 4 fm filter 61 rf agc outpu...

  • Page 21

    2003 sep 09 2 greenchip ii smps control ic tea1506 tea1506t; tea1506at features distinctive features • universal mains supply operation (70 to 276 v ac) • high level of integration; giving a low external component count. Green features • valley or zero voltage switching for minimum switching losses ...

  • Page 22

    2003 sep 09 4 philips semiconductors product specification greenchip ii smps control ic tea1506p; tea1506ap; tea1506t ; tea1506a t this text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the acrobat reader.This text is here in _ white to force lan...

  • Page 23

    2003 sep 09 5 philips semiconductors product specification greenchip ii smps control ic tea1506p; tea1506ap; tea1506t; tea1506at pinning symbol pin description dip8 so14 v cc 1 2 supply voltage gnd 2 3 ground ctrl 3 6 control input dem 4 7 input from auxiliary winding for demagnetization timing; ove...

  • Page 24

    2003 sep 09 6 philips semiconductors product specification greenchip ii smps control ic tea1506p; tea1506ap; tea1506t; tea1506at functional description the tea1506 is the controller of a compact flyback converter, and is situated at the primary side. An auxiliary winding of the transformer provides ...

  • Page 25

    2003 sep 09 7 philips semiconductors product specification greenchip ii smps control ic tea1506p; tea1506ap; tea1506t; tea1506at cycle skipping at very low power levels, a cycle skipping mode will be activated. A high control voltage will reduce the switching frequency to a minimum of 25 khz. If the...

  • Page 26

    2003 sep 09 8 philips semiconductors product specification greenchip ii smps control ic tea1506p; tea1506ap; tea1506t; tea1506at demagnetization the system will be in discontinuous conduction mode all the time. The oscillator will not start a new primary stroke until the secondary stroke has ended. ...

  • Page 27

    2003 sep 09 9 philips semiconductors product specification greenchip ii smps control ic tea1506p; tea1506ap; tea1506t; tea1506at valley switching a new cycle starts when the power mosfet is switched on (see fig.9). After the ‘on-time’ (which is determined by the ‘sense’ voltage and the internal cont...

  • Page 28

    2003 sep 09 10 philips semiconductors product specification greenchip ii smps control ic tea1506p; tea1506ap; tea1506t; tea1506at overcurrent protection (ocp) the cycle-by-cycle peak drain current limit circuit uses the external source resistor to measure the current accurately. This allows optimum ...

  • Page 29

    2003 sep 09 11 philips semiconductors product specification greenchip ii smps control ic tea1506p; tea1506ap; tea1506t; tea1506at control pin protection if pin ctrl is open-circuit or not connected, a fault condition is assumed and the converter will stop switching. Operation will recommence as soon...

  • Page 30

    10、b0m list material concentrative bom print material no.: 03-dm62sab-sc60s material name: s21m62q/cs-sy33-la parent child description qty unit bom text 03-dm62sab-sc60s t6-016w31-a009xz ass'y-remote control bd of artequ 1 pc t6-016w31-a009xz 06-016w31-a009x remote controller rc1663108 1 pc 03-dm62s...

  • Page 31

    T8-dm62sab-cry 11-tc3207-0bx transistor ktc3207 3 pc q504;q502;q 506 t8-dm62sab-cry 18-cb0101-jnx res. C.F. 100 ohm 1/6w +/-5% 3 pc r510;r501;r 505 t8-dm62sab-cry 18-cb0182-jnx res. C.F. 1.8k ohm 1/6w +/-5% 1 pc r514 t8-dm62sab-cry 18-cb0332-jnx res. C.F. 3.3k ohm 1/6w +/-5% 2 pc r515;r522 t8-dm62sa...

  • Page 32

    T8-dm62sab-fcn 54-114002-00x felt tape (360mmx19mmx0.3mm) 6 pc t8-dm62sab-fcn 54-205140-000 spacer crt mounting t=2mm 4 pc mtg crt&f.Cab t8-dm62sab-fcn 54-314740-0x0 crt fibre sheet (22mmx22mmx0.8mm) 12 pc mtg chassin&crt ; t8-dm62sab-fcn 57-389890-000 wire mounts 80mmx2.2mm 3 pc t8-dm62sab-fcn 62-2...

  • Page 33

    T8-dm62sab-mansm t8-dm62sab-iry ass'y - infrared receive bd 1 pc t8-dm62sab-iry 02-irr001-xx1 ir receiver module hrm380017 1 pc ir1101 t8-dm62sab-iry 11-sc1815-ybx transistor 2sc1815-y (npn) 1 pc q1101 t8-dm62sab-iry 14-led03r-xx1 led red Φ3mm fo203 1 pc d1101 t8-dm62sab-iry 18-cb0152-jnx res. C.F. ...

  • Page 34

    T8-dm62sab-man 10-0ru3yx-fbx diode ru3yx 2 pc d830;d841 t8-dm62sab-man 10-1n4001-ebx diode 1n4001 (rectifier) 1 pc d301 t8-dm62sab-man 10-1n4007-ebx diode in4007 1 pc d816 t8-dm62sab-man 10-1n4148-abx diode 1n4148 (switching) 21 pc d204;d206;d 819;d203;d2 02;d201;d84 0;d814;d210 ;d602;d211; d302;d40...

  • Page 35

    T8-dm62sab-man 18-cb0101-jnx res. C.F. 100 ohm 1/6w +/-5% 8 pc r915;r274;r 916;r261;r2 03;r202;r20 1;r255 t8-dm62sab-man 18-cb0102-jnx res. C.F. 1k ohm 1/6w +/- 5% 13 pc r923;r922;r 605;r475;r4 11;r221;r01 3;r020a;r10 7;r220;r620 ;r860;j220 t8-dm62sab-man 18-cb0103-jnx res. C.F. 10k ohm 1/6w +/-5% 1...

  • Page 36

    T8-dm62sab-man 18-cb0272-jnx res. C.F. 2.7k ohm 1/6w +/-5% 1 pc r835 t8-dm62sab-man 18-cb0274-jnx tcl18-cb0274-jnx= res. C.F. 270k ohm 1/6 2 pc r471;r215 t8-dm62sab-man 18-cb0302-jnx res. C.F. 3k ohm 1/6w +/- 5% 4 pc r080;r081;r 252;r281 t8-dm62sab-man 18-cb0331-jnx res. C.F. 330 ohm 1/6w +/-5% 2 pc...

  • Page 37

    T8-dm62sab-man 18-cb0684-jnx res. C.F. 680k ohm 1/6w +/-5% 1 pc r226 t8-dm62sab-man 18-cb0750-jnx res. C.F. 75 ohm 1/6w +/- 5% 6 pc r911;r910;r 909;r920;r9 06;r904 t8-dm62sab-man 18-cb0821-jnx res. C.F. 820 ohm 1/6w +/-5% 1 pc r118 t8-dm62sab-man 18-cd0101-jnx res. C.F. 100 ohm 1/4w +/-5% 1 pc r813 ...

  • Page 38

    T8-dm62sab-man 18-fg0334-jhx res. M.O. 330k ohm 2w +/-5% 1 pc r804 t8-dm62sab-man 18-fg0399-jhx res. M.O. 3.9 ohm 2w +/- 5% 1 pc r470 t8-dm62sab-man 18-fg0683-jhx res. M.O. 68k ohm 2w +/- 5% 1 pc r810 t8-dm62sab-man 18-ke0105-jnx res. Glass glaze 1m ohm 1/2w +/-5% 1 pc r802 t8-dm62sab-man 18-kf0825-...

  • Page 39

    T8-dm62sab-man 25-beb101-m1x cap. Elec 100 uf 35v +/- 20% 1 pc c303 t8-dm62sab-man 25-beb470-m1x cap. Elec 47 uf 35v +/- 20% 1 pc c431 t8-dm62sab-man 25-bfb229-m1x cap. Elec 2.2 uf 50v +/- 20% 6 pc c605a;c605; c292;c262;c 242;c226 t8-dm62sab-man 25-bfb478-m1x cap. Elec 0.47 uf 50v +/- 20% 1 pc c267 ...

  • Page 40

    T8-dm62sab-man 26-apk471-kbx cap. Cer 470pf 400vac +/- 10% b 2 pc c803;c804 t8-dm62sab-man 26-aqk472-zfx cap. Cer 4700pf 250vac +80% -20% f 2 pc c807;c808 t8-dm62sab-man 26-ebp100-jcs tcl26-ebp100-jcs= cap. Cer 10 pf 50v +/- 3 pc c106;c107;c 304 t8-dm62sab-man 26-ebp102-kbs cap. Cer 1000 pf 50v +/- ...

  • Page 41

    T8-dm62sab-man 27-pbc103-j0x cap. P.E. 0.01uf 63v +/- 5% 1 pc c254 t8-dm62sab-man 27-pbc152-j0x tcl27-pbc152-j0x= cap. P.E 0.0015uf 63v 1 pc c204 t8-dm62sab-man 27-pbc153-j0x cap. P.E 0.015uf 63v +/- 5% 1 pc c257 t8-dm62sab-man 27-pbc223-j0x cap. P.E 0.022 uf 63v +/- 5% 2 pc c252;c260 t8-dm62sab-man...

  • Page 42

    T8-dm62sab-man 41-wj0075-b00 wirebarejumper7.5mm 18 pc j207;j225;j 215;j929;j9 13;j926;j92 8;j903;j902 ;j901;j805; j822;j605;j 305;j250;j2 33;j812;j82 1 t8-dm62sab-man 41-wj0070-b00 wirebarejumper7mm 3 pc j202;j255;j 219 t8-dm62sab-man 41-wj0085-b00 wirebarejumper8.5mm 5 pc j911;j210;j 402;j209;j9 1...

  • Page 43

    T8-dm62sab-man 46-32535h-04xg tcl46-32535h-04xg= hs 4p24 550 tjc3-4y/s 1 pc p003 t8-dm62sab-man 46-30953h-05xg hs 2468#24 420 tjc3- 5y/scn-5y 1 pc for m. P201 to p503 （crt bd） t8-dm62sab-man 46-35063w-03xg pin base *3 vh-3a 1 pc p802 t8-dm62sab-man 46-30615h-04xg hs 4p24 460 f/w tjc3- 4y/scn-4 1 pc ...

  • Page 44

    T8-dm62sab-man 67-h38012-ua0 raw heatsink u 30 00 r=n 1 pc for ic601 t8-dm62sab-man 67-h40390-4a0 heat sink 2 pc for ic301 t8-dm62sab-man 67-h40413-2a0 standard heat sink 1 pc for q815 t8-dm62sab-man 67-m40068-1e4 heat sink bracket 2 pc for q815;for ic301 t8-dm62sab-man 71-dyp000-wx1 label 1 pc stic...

  • Page 45

    03-dm62sab-sc60s t8-dm62sab-pan ass'y - packing 1 pc t8-dm62sab-pan 75-dm62ll-cc0 polyfoam_ll 1 pc t8-dm62sab-pan 75-dm62lr-cc0 polyfoam_lr 1 pc t8-dm62sab-pan 75-dm62ul-cc0 polyfoam_ul 1 pc t8-dm62sab-pan 75-dm62ur-cc0 polyfoam_ur 1 pc t8-dm62sab-pan t8-dm62sab-panz ass'y - packing(art) 1 pc t8-dm6...