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Philco PM2024, Руководство по обслуживанию, Страница: 12 / 26

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-12-

(1) Receive a monochrome circular pattern.
(2) Set the brightness and colour to normal, contrast to maximum.
(3) Enter to the service mode.
(4) Set each value of Item-16 RBIAS, 17 GBIAS, 18 BBIAS mode to 00. Set each value of Item-19 RDRIV, 21 BDRIV

mode to 63, 20 GDRIV to 07.

(5) Select Item-22 mode to be one horizontal scanning  line and turn the screen volume on the FBT to obtain just visible

one coloured line.

(6) Press the 1 (Red Bias +), 4 (Red Bias -), 2 (Green Bias +), 5 (Green Bias -), 3 (Blue Bias +) or 6 (Blue Bias -)

button to adjust the brightness of each colour until a dim white line produced. Please see the control button alloca-
tions in this mode.

(7) Select Item-23 DRV mode to enter the white balance adjusting mode.
(8) Press the  7 (Red Drive +), RECALL (Red Drive -), 8 (Blue Drive +) or 0 (Blue Drive -) button alternately to 

produce normal black and white picture.

(9) Exit from the service mode.
(10) Check for proper grey scale tracking at all brightness levels.

NOTE: If the grey scale adjustment is made after picture tube replacement, check the high voltage.

Items 16-23 GREY SCALE

Service Adjustments

JXMRR

Red Bias -

Red Bias +

Green Bias -

Blue Bias +

Red Drive +

Blue Drive -

Blue Drive +

Green Bias +

Blue Bias -

Press the MENU button to exit
from service mode

Red Drive -

E

E

B

33

T471-H1

T471-H2

T471-H4

T471-H5

T471-H6

T471-H7

T471-H10

T471

R449

D485

R488

R423A

C465

R481

C423

C423-H1

C423-H2

C423-H3

D438

C420

C420-H1

C420-H2

C420-H3

C423A

C420B

C424A

C424

D439

C422

C422A

JP436

L432

L431

C425

C425A

KQ

C486

C471

R424

R435

C426

R355

C442A

L442

T431

R434

C433

Q431

R474

R485

R445

C424-H1

C425-H1

C424-H3

C424-H2

C425-H2

C425-H3

KDY-1

C442-

C442-H3

C442-H1

C

L462H2

C432

R433

C

42

0A

C420A-H2

C434

R432

C431

C629

C628

T471-H9

1

4

Q613-H6

KDY

T471A

Q432-H5

Q432-H4

Q432-H7

Q432-H6

Q432-H2

Q432

T471-H8

Q432-H3

Q432-H1

J145

C487

R435H2

R435H1

T431A

R423

C465A

C355

JP488

JP487

JP486

C486A

JP476

R449A

T471-H11

T471-H3

D650

R487

C426A

C420A-H1

TP-B

(FBT)

H-OUT

C

T

MAIN BOARD

SCREEN VR

(Under side)

F.B.T.

Содержание PM2024

Страница 1: ...ecifi cation table Specifications Power Source AC220V 50Hz 60Hz Receiving System PAL M M N N NTSC M M Channel Coverage Antenna mode VHF CH02 CH13 UHF CH14 CH69 CATV mode VHF band CH01 CH13 Mid band CH...

Страница 2: ...eiver is the picture tube The picture tube is specially con structed to limit X RADIATION emissions For continued X RADIATION protection the replacement tube must be the same type as the original incl...

Страница 3: ...2 11 14 15 16 17 42 EXT VIDEO IN K1001 K1002 REAR AVIN FRONT AVIN VIDEO VIDEO A L A L 19 20 21 R G B 7 AC POWER CIRCUIT CONVERTER TRANS 130V MAIN HIGH 20V AUDIO 12V MAIN LOW 24V VERT 9V IC202 REG IC 5...

Страница 4: ...4 Chassis Block Diagrams SYSTEM CONTROL QXXAVC479P 15 C CAPTION IN IC001 Stereo Model only...

Страница 5: ...LMP V C VCC 5V 46 47 48 49 50 A2C PLL 51 52 53 54 Audio Output FM Output Selected Audio Output PIF AGC RF AGC Output PIF Input1 PIF Input 2 IF Ground IF Vcc FM Filter AFT Output Bus Data Bus Clock ABL...

Страница 6: ...bit Amp 54 10p SIF In Sound BPF VCO Coil VCO COIL1 VCO COIL2 48 49 VIF VCO Chroma Counter B N INV IF Ident OSC C D Amp SIF Sys 2bit pre scaller SIF VCO 500K BPF SIF APC Filter 1K 0 01u 1000p 53 LIM AM...

Страница 7: ...2 3 PRE GND 4 6 7 8 9 NC 10 AMP 5 POWER GND NC FILTER NC VCC INPUT OUT PUT NFL 30K 300 Thermal Protection AMP Pump Up 1 INVERTING INPUT 2 Vcc 3 PUMP UP OUT 4 GND 5 Ver OUTPUT 6 OUTPUT STAGE Vcc 7 NON...

Страница 8: ...Menu now appear 2 Service Adjustments Press the CHANNEL UP or CHANNEL DOWN button on the remote control handset to select the desired service menu item you want to adjust Use the VOLUME or to adjust...

Страница 9: ...ateral line 23 DRV Brightness and dark of White balance adjustment 24 B YD 10 00 15 B Y DC Level 25 R YD 10 00 15 R Y DC Level 26 B YND 0 16 15 Difference value of NTSC B Y DC Level 27 R YND 0 16 15 D...

Страница 10: ...00 00 01 Adjustment of AFC Gain Gate RF 66 VSURF 00 00 01 Adjustment of Vertical Sync Separation Sensitivity RF 67 CDMRF 00 00 07 Vertical Count Down Loop Adjustment RF 68 AFCAV 00 00 01 Adjustment of...

Страница 11: ...nd contrast to maximum 3 Select Item No 04 V SIZ in the service mode 4 Change value to be optimum vertical size 5 Exit from the service mode 1 Receive a monochrome circular pattern 2 Set the brightnes...

Страница 12: ...grey scale tracking at all brightness levels NOTE If the grey scale adjustment is made after picture tube replacement check the high voltage Items 16 23 GREY SCALE Service Adjustments JXMRR Red Bias...

Страница 13: ...s function is available for one channel only and the fine tuned channel is memorized into IC802 EEPROM FINE TUNING 1 Enter the Service Menu While pressing the MENU button on the television press the 4...

Страница 14: ...egative lead to ground and connect lead to anode of picture tube 2 Tune receiver to an active channel and confirm TV is operating properly 3 The high voltage must be 14 21KV 1KV 20 21 25KV 1KV 29 26 5...

Страница 15: ...lours to check this use bias controls Readjust the yoke position if necessary until all screens are pure 7 Adjust each Bias control and screen control to obtain white raster Refer to Gray Scale Adjust...

Страница 16: ...2 610 278 1601 DEC IND F8GF 3 610 278 3520 BUTTON UNITED F8FH 4 610 278 1564 CABINET FRONT F8GH 5 610 318 0991 BADGE PHILCO F8FS 6 610 277 7369 CABINET BACK F8GE 7 610 318 4036 LABEL RATING F8GV 8 64...

Страница 17: ...ered when a component replacement is made in any area of a receiver Components indicated by a mark in this parts list and the circuit diagram show components whose value have special significance to p...

Страница 18: ...5 TR 2SC536NF NPA 405 151 8705 TR 2SC536NG NPA 405 020 7501 TR 2SC945A PA 405 020 7709 TR 2SC945A QA 405 020 7907 TR 2SC945A RA Q693 405 011 8401 TR 2SC1740S Q 405 011 8500 TR 2SC1740S R 405 011 8609...

Страница 19: ...6 3102 CERAMIC 3900P K 500V C434 403 051 3103 ELECT 47U M 50V C441 403 346 6901 MT POLYPRO 0 22U J 250V C442 403 346 6901 MT POLYPRO 0 22U J 250V C469 403 049 4204 ELECT 10U M 50V C471 404 056 5208 NP...

Страница 20: ...A 1 16W R221 401 105 0504 MT GLAZE 1K JA 1 16W R222 401 105 0504 MT GLAZE 1K JA 1 16W R223 401 105 0504 MT GLAZE 1K JA 1 16W R224 401 105 5301 MT GLAZE 4 7K JA 1 16W R225 401 105 5301 MT GLAZE 4 7K JA...

Страница 21: ...403 157 3601 CERAMIC 100P J 50V R834 401 105 0603 MT GLAZE 10K JA 1 16W R835 401 105 0603 MT GLAZE 10K JA 1 16W R836 401 105 0603 MT GLAZE 10K JA 1 16W R837 401 105 5301 MT GLAZE 4 7K JA 1 16W R838 4...

Страница 22: ...DIODE 1SS133 407 013 4306 DIODE 1S2076A 407 013 7109 DIODE 1S2473 D661 407 099 5501 ZENER DIODE MTZJ6 2C 407 057 2801 ZENER DIODE RD6 2EB3 D662 407 099 5600 ZENER DIODE MTZJ6 8A 408 047 8605 ZENER DIO...

Страница 23: ...TOR C701 403 157 6602 CERAMIC 470P K 50V C711 403 157 6602 CERAMIC 470P K 50V C721 403 157 6602 CERAMIC 470P K 50V C731 403 077 2807 CERAMIC 1000P Z 2K C741 403 049 0008 ELECT 1U M 50V C751 403 044 17...

Страница 24: ...July 04...

Страница 25: ...25KK 0 033GQ CJ27CGQZ CJ15CGQZ V10B0 560N 570N AJ 1 5K 1 16GJ 1 5KAZ EM1 RD3 6EL DZXLBB017 1 16GJ 4 7KAZ 1 16GJ 8 2KAZ H OUT PM1 X 1K 1 16GJ33AZ 1 16GJ0AZ X 2SJ4 7 25KK 0 1GQ 25KK 0 1GQ 25KK 0 1GQ X X...

Страница 26: ...029 J127 J128 J129 J130 R019 J028 JP652 J139 J143 J141 T471 H8 R662 L601 H2 L601 H1 L601 H4 L601 H3 C609 H1 C521 J142 J009 R036 D1001 J144 Q432 H3 Q432 H1 JP029 J145 J132 C487 R435H2 R435H1 T431A R528...

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