4288 djvu

ALIGNMENT INSIRUCTIONS

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■DEFLECTION YOKE

i-CLANP SCREL

Fig. 1 Picture lube Neck Coaponent Location

b. After conpleting red and blue center conwergence, locata e pair of 6 pola aagnet rings. Rotata

adjustnent wedges (lj end (2) between the deflection yoke ind the CRT until the iiproper conwergence

indiwidual rings jchange Specing between tab*) to converge the wertical red end blue (nagenta) and green lines. Rotata a pair of rlnga (maintaining specing between tabs) to conwerge the horizontal red and blua (nagenta) and green lines.

Dynamie conwergence (conyergenoa of the three color fields at the edge* of the CRT acreen) ia accosplished by proper insertlon and positloning of three rubber wedges between tbe edge of the deflection yoke end tbe tunual of the CRT. This is accomplished ln the following nanner.

I. Connect 10K oha waritble 12V) to ground. nstall AGC VR to prewent adjust AGC VR for proper hand, in caaa IF AGC wolt

MDM {8)^

Fig. 2 Dynamie Conwergence Adjustnent

ORION

Mod. color 4288

SHUT DOWN CIRCUIT

Vhen the high volŁege rlm, a aiaultanaoua woltag* incraasa will d#velop «t tarainal 9 of the Horizontal Output Traneforiear( FB401), and be appliad to pin 52 of IC401. If e»cessiv* high woltage Is producad, the increased woltage deweloped exceeda the rating of zener diodę D405 cauaing the Horizontal Oacillator to stop functloning and the high woltage aystee to shut down.

HORIZONTAL AND YERTICAL SI ZE ADJUSTMENT

Adjust the contro1 (VRJOI) and (YR40I) so that the picture filia the picture froa top to bottoe and ls proportlonate to the width.

RF ABC ADJUSTMENT

The RF AGC oontrol la adjuated at the facto ry and rarely reąuiret re-edjuetnent unlaaa the received picture azhibita too auch snów or tha racaiwar lacka eenaitiwity. Hoea adjuataent can be aede by tuning ln a weak anowy atation and adjusting RF AGC for tha leaat anount of anow. For a aora accnrate adjustnent, uae tha following procedura.

1.    Racaiwe tha taat pattern a i gnał [SOdfi).

2.    Adjuat AGC pin of IV tuner (IPOli) to 4,7SV with YR201

contro1.

SUB BRI9HT ADJUSTMENT

1.    Racaiwe the slgnal of Honochrone pattern.

2.    Set the Brlght IVR005-1) contro1 to niniara poaition and Contra at (V8605-2) contro 1 to neiinua poaition.

3.    Adjuat the Sub Brlght (YRI04) control to obtain a din

‘    on 75* of gray scalę.

FOCUS ADJUSTMENT

Adjust focus control on tha flyback trsnsfonaar for a defined picture.

HUE DELAY ADJUSTMENT

1.    Racaiwe the signel of DEH pattern.

2.    Connect duel oacilloacope to TP601 and IPS02.

4. Adjust vavefora to streight lina with VRA01 and LA03.

AFT ADJUSTMENT

1. Connect the output of the oacillator to tha tuner peck IP.

2, Adjuat L203 to keap conatant DC voltage et TPOOć with AFT ON and AFT OFF.

HORIZONTAL POSITION ADJUSTMENT

1.    Receiwe the test pattern signel. (PAL Philipa)

2.    Adjuat horizontal picture poaition to center

with YR402.    '

COLOR FUR I TY ADJUSTMENT

The receiver nust ba oparated 10 minutas prior to

this procedurę and the face piata of the CRT nust be at

roon tenperature. Tha following procedurę la econaended

whila uaing a Dot/Ber Generator.

L. Chack for correct location of all nack coaiponents.

(Rełsr to Fig. I)

2.    Rough-in the static conwergence at the center of the CRT, as ezplained in the static convergence.

3.    Rotata tha contrast control to aaiimn CCW poaition and rotata brightnaaa control aa far CW aa posalbla without cauaing tha picture to "bloosi .

4.    Rotata tha Rad <VRS01) and Blua (YRB04) Cut off Controls to aeiiaua CCH poaition. Rotata tha Grean (YRSOS) Cut off control sufflciently in a CW dirsction

5.    Loosen the daflaction yoka clamp acrew and puli the deflectioo yoke towerd the rsar of tha CRT,

6.    Begin the following adjuataent with the ta ba on the round purity magnet rings set togetber, slowly seperate the two tabs whila at tha aaae tlaa rotating tbaa to adjuat for a unlfora grean etripe at tha center of the CRT tcraen.

7.    Cerefully illde tha deflection yoke forward to aehiews grean (unlfora grean acrean).

NOTĘ; Center purity ia obtained by adjuating the tabs on the round purity aagnet rings, outer edge purity i\ obtained by slidlng the daflaction yoka ferwerd,

B. Check for red and blua field purity by reducing the output ęf tha Grean (YRSOS) Cut off control and eltametely increasing output of Red (VR80I) end Bluc (YRS04) Cut off Controls end toueh-up edjuataenta, if raquired.

9. Tighten deflectftn yoke clanp acrew.

BLACK AND WHITE TRACKIMO

The purpose of this procedura is to adjust tha bies applied to the picture tubę to obtain good black and white picture productlon at all brightnass lavels while, at the aane tiae echiawing aaxinua useable brightnass. Proper RF AGC control adjustaent should have been verified prior to performing this procedura.

1.    With antenna conneeted to the reeeiwer, go to a channel with strong recaption. Adjuat the fine tuning control so that the receiver will not produce a color picture while tha following adjustnent ara being

2.    Rad (YRS02) and Blua (YRSOS) Driva control fullay CV and than back CCW to tha center of their rotation rangaa.

3.    Rotata tha Grean (YRSOS), Rad (YRS01) and Blua (YRS04) Cut off Controls to the fully CCW and of their rotation ranges.

4.    Set normel-serwice switch to serwice position. Adjust the voltage of test point (collector of green output translator on CRT PCB) to DC130Y with brightnea* control. Voltage naasurement should be measured with an oacilloacope.

5.    Rotata the acrean control to the fully CCW and of ita rotation ranga. Then, rotata it CW until a dla lina of ona pronouncad color (grean, red or blua) ia obtained.

6.    Ihe other two color Cut off Controls sust be rotated CU until a din white linę is obtained.

7.    Set normel-serwice switch to nornel position.

B. If reauired, perfons toueh-up adjustnent of tha Rad (YRS02) and Blua (YRSOS) Drive Controls to produce a unlfora nonochroma picture.

9. Rotete the brightnass and contrast control* fully CCW.

10.    Rotata the brightnass control CV until a dla raster is obtained.

11.    If the acreen does not display with uniforaity, staps 2 through 10 of this procedura nust be repeated.

STATIC CONYEROENCE ADJUSTMENT

1.    Switch tha Racaiver ON and ellow it to want up for 15 ainutaa.

2.    Connect the output of a Croisbatch Generator to the reeeiwer ind concentrating on the center of the CRT acreen. proceed as foliowe:

t. Locate t peir of 4 pole aegnet rings. Rotata indiwiduel rings jchange specing between tabs) to converge the wertical red and blue llnes. Rotate a pair of ring* (aaintalning specing betwe*n Ub») to conwerge the horizontal red end blue lines.

DYNAMIC CONYEROENCE ADJUSTMENT

1.    Switch the Receiver ON and allow it to wara up for 15 niruites.

2.    Apply crosshatch pattern frpm Dot/Bar Generator to reeeiwer. Obserwe specing between lines eround edges of CRT ecreen.

3.    Tilt the deflection yoke up or down. end insert tilt

lllustreted in Fig. 2 (A) bas been correct*!.

4.    Tilt tbe deflection yoke right and left, end insert tilt adjustnent wedge (3) between the deflection yoke end tha CRT until the inproper conwergence lllustreted in Flfl, 2 (B) has been corrected.

5.    Altemately cbange specing between, and depth of insertlon of the three wedges proper dynaaic convergence is obtained.

6.    Use a strong adhesiwe tape to firaly secure each of the three wedges to tbe iunnel of the CRI,

7.    Check purity end adjust, If necesssry.

VI DE O IF AND TRAP ALIGNMENT

TEST E0UIPHEK1 CONNECTION

OSauiSCOPE .... Set AC-DC switch to AC position.

SWEEP-HARKER GENERATOR .... Connect H SOOFE and V SOOPE

output ceble froa SWEEP-HARKER GENERATOR to H end V lnput connectore on the OSCIliOSCOPE, connect hot lead of SWEEP-HARKER OUTPUT ceble to test point TP001 on PC8001; connect ground lesd to chassis ground. Connect pick up SWEEP-HARKER INFUI ceble to TP007; ground lead to chaaiie ground. (PROBE B)

.. woltage is wlthln 10V 2. Adjust L204 to obtsln au curv* et 38.9 HHz.

(Rsfsr to Rsspons* Curws ", Re-connect hot letd of Sk ceble froa IF001 to IV to

4.    Re-Gonnact SWEEP-HAfffER C to IP012. (PROBE A)

5.    Adjust L20F to obtain aai curv» at 32.4 HHz. (RaJtr Connect a 100 oha resistc Re-Connect SWEEP-HARKER G to TP007. (PROBE B)

7.    Adjust L20A abtain Mziac (Rstar to Rsspons* Curws ”

8.    Disconnect tha 10K oha va rssiator froa tha Circuit Disconnect 0006, C217 end Re-Connect SWEEP-HARKER G to IP006. (PROBE B)

10.    Sat the AFT SW to ON poai

11.    Adjust L203 to pitce 38.5 on response curwe.

(Rsfar to Rosoonso Curws 1

12.    Re-connect c5Ó6. C217 and

BŁOCK DIAGRAM

(ICO (I)

(o

MDM (1)

B Cowergetce Adjustnent

1.    Connact 10K oha vartable rasistor betuaan IP004, B+

(12V) to ground.

Inatall AGC VR to pravant saturation in mvefora, then adjust AGC VR for propar sita of wavefora. On tha otbar hand, in casa IF AGC voltage is supplied artartially, adiist for propar size of vaveforn on condition that IF AGC uoltage ia ulthin LOV and ls gradually decreasad.

2.    Adhst L204 to obtain naxiBua amplituda of rasponse eurva at 38.9 HHz.

(ftofif to Rospotuo Curvi ^MA^W)

3.    Ra-connact hot laad of SWEEP-HARKER GENERATOR OUTPUT cabla froa IP001 to IV tuner-TP.(With 2.7K oba rasistor)

4.    Re-Connect SWEEP-HARKER GENERAIOR INPUT cable froa IPOol to IP012. (PROBE A)

5.    Adjust LM7 to obtain aaiiaua aaplituda of responsa curva at 32.4 HHz. (Rsfar to Raaponaa Cum "B")

6.    Connact a 100 oba rasistor between TP009 and TP010. Re-Connact SWEEP-HARKER GENERATOR INPUI cable froa IP012 to IP007. [PROBE B)

7.    Adjust L2M sbtain aaaiaua aaplituda of responsa cum. {Rstar to Ratponsa Curvs "C")

8.    Disconnect tha 10K oha varlable rasistor and 100 oba rasistor froa tbe Circuit.

Disconnect 0006, C217 and C218. [solder bridgel

9.    Re-Connact SWEEP-HARKER GENERATOR INPUI cabla froa TP007 to IP006. (PROBE B)

10.    Set tha AH sw to ON position

LI. Adjust L20S to plsce 38.9 HHz Barier at refarenca lina on raaponaa curve.

(Ratir to Raaponaa Cum "D")

12. Ra-connect C006, C217 and C218. {solder bridge)

CURVE "C"

CURVE 'D¹

CURVE "E"

nip-sunii OINSMTOn OUTPUT

(PROBE B)

SECAM CHROMA BANDPASS ALI6NMENT

sat-

PKKUT

anouND

-DC twltch to AC position.

.,, Connect H SOOfi and V SCOPE output cable froa SWEEP-HARKER GENERATOR bo H and V input coonector* on the OSCILLCiSCOPE, eoonsct hot laad of SWEEP-HARKER OOTPtU cabla to taat point TF001 on FC8001; connect ground laad to chassis ground. Connact pick up SWEEP-MARKER INPUI cabla to TP007; ground laad to chassia ground. (PROBE B]

CURVE "B"

TESI EQUIPHENI C0NNECI10N

GENERAL ..... PAL-SECAM switch to SECAM position.

SWEEP-HARKER GENERATOR ... Connact H. SCOPE and V. SCOPE output cabla froa SWEEP-HARKER GENERATOR to H. and V. input connectors on tha OSCILLOSOOPE connact hot lud of SWEEP-HARKER OUTPUT cabla to TP on TV tuner! connact ground laad to chassis ground.

Connact piek up lud SWEEP-MARKER INPUT cabla to TP604; ground laad to chaisia ground.

SECAM IDENT ADJUSTMENT

1.    Raceivc tha signal of secan color pattam.

2.    Connact tha DC wltmetar to TP603 and ground.

3.    Adjust tbe uoltaga to uxisun with LAOe.

1. Adjust LAOS to obtain beat ovaralI rasponse curve.

(Raf* te Raaponaa Cum "E”)

SECAM PHASE ADJUSTMENT

1.    Receiva tha signal of secan color pattam.

2.    Adjust LA01 ana L602 not to change tha color of the pattam uh i la tunlng tha Color cOntrol fron minimum to marianin position.

TV 1/98

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CHASSIS SCHEMAT1C DIAGRAM

WARNING!!!This scheme not for selling on CD,its possible liberally get on put www.radiolom.by.ru.If You have sold this scheme on CD,that You have well defrauded.Do Not buy the thieyed belongingsIThe Death thief!

CRITICAL FOR SAFETY . U5E ONES    DANGEREUSES AN POINT DE VUE SECURITE    0F PRINTING AND SUBJECT TO CHANGE WITHDUT K

DESCRIBED ON PARTS LIST ONLY.    N'UTILISER OUE CE1.LES DECRITES

DANS LA NOWNCLATURE DES P1ECE5.

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SSIS SCHEMATIC DIAGRAM

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17. l.S Vp-p

18. 28 Vp-p

19. 50

21. 32 Vp-p

20. 158 Vp-P

RITES

PIECES.

CHASSIS SCHEMATIC DIAGRAM

1-7761

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CHASSIS SCHEMATIC DIAGRAM

re HUł<ŁD BY A ««    ATTŁNTia

npo^aacM Ha ,HMCKax.CxeMy mo>kho CBOÓOflHO nOTiyHMTb Ha caiiTe

"www.radiolom.by.ru" (www.hot.ee/judenOO 1 /).Ecjim Bbi ee Kynujm Ha 6ouBaHKe,TO Bac

	irfWw	c T^i T		JF\ JK\

KanMTanbHO Hae6jiM!He noTOepłKMBaiiTe 3tmx nM^opoB-ToproBi^eB Kpa,ąeHHMM!!!

WARNING!!!This

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ddiSlSMM] 'wnaio :MOiinaC

mmi tooow

bh qxnhAiron OHtóopOaD OH3KOW Xw3X3-XBHDMW BH MJKBtiodll KIftó BHSHBHEBHWadu 3H BW3X3 B

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