Related Manuals for Philips PTV400 series
Summary of Contents for Philips PTV400 series
- Page 1 SEARS America's Repair Specelists 57211093 PHILIPS PTV400 Series In-Home Service Guide Projection Television S.T.T.S Informatiq Dept. 702PSO Category © 1993 Sears, Roebuck and Co. 702PSTEC13 5721 Printed in U.S.A. 10/93...
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Page 2: Table Of Contents
1992 P1 v CHASSIS IN-HOME TROUBLESHOOTING GUIDE Screen Geometric And Centering Adjustments ......... 19 CONTENTS Green Screen Geometry Adjustments ..........Blue Screen Convergence Procedure ..........Subject Page Red Screen Convergence Procedure ..........SECTION 1 Programming Factory Default Values ..........General: Test Mode Entry and Exit .............. -
Page 3: Servicing And Safety Precautions
SECTION Introduction The 1992 Projection Television (PTV) comes in three basic Servicing And Safety Precautions configurations, the PTV410, PTV420, and PTV430 Series (see Always use safe servicing procedures: Figures 1 through Figure 6 in Simplified Drawings section). These 1. Use an Isolation Transformer when servicing the Projection sets feature a completely new, high-end single board'chassis design Television to protect both the set and test equipment. -
Page 4: Power Supply
set, the coml.,vsite video is routed from the Jack Panel to the Multi-PIP approximately 12Vdc is provided via Diode D405 to the Controller IC for the continuing source voltage. A 15V-Standby Source is used as Module. ReModulated Video (RMV) is returned from the Multi-PIP the source for the 5V Regulator, IC408. -
Page 5: Troubleshooting The Ptv System: Access
SECTION (input to IC900) and Overvoltage Shutdown (input to IC902). Beam Current is monitored from the bottom of the Diode Stack, Pin 10 Troubleshooting the PTV System: (Aquadag). Access To gain access to the various Modules and Panels in the PTV, The PTV will go into Shutdown when the High Voltage or Beam... -
Page 6: Deflection Failures, Video Blanking, And High Voltage Shutdown
Jack Panel. The video returns from the AVIO Jack Panel on J620-1. B Source should be present at two locations, P404-5 and P404-6. The This Pin should also be checked because the video could be going to 130V-C Source can be checked at P404-7. The 9V and 15V Sources the AVIO Jack Panel, but not returning to the main chassis (Notice can be checked at P402-5 and P402-2 respectively. -
Page 7: In-Home Adjustments
Short Test Points 16A & 16B together at the bottom of the UN SECTION Tuner. In-Home Adjustments: Short Test Point 23 (Pin 13 of IC200) to ground (Shield around Caution: The PTV410/420/430 incorporate a "HOT" ground It200 is good). system on the Power Supply Module. Always use an Isolation Connect a DC Voltmeter to Test Point 7 (Pin 18 of IC200). -
Page 8: Comb Filter Alignment
Comb Filter Alignment (this adjustment requires the use of to ground. Connect a Frequency Counter to Test Point TP38. equipment not normally carried into the home) Turn On the set and adjust R902 to obtain a reading of 15.734kHz Note: The following procedure covers the only Field Adjustable on the counter. -
Page 9: 130Vdc Adjust
information a nd appear as though the screen is being under-scanned. With only 4.5MHz (no pilot) applied, read and record the DC Attempting to compensate for an over-adjustment by increasing the voltage at Test Point 64. vertical height (size) will cause geometric distortion. Therefore, adjust Apply pilot input and adjust R122 until the DC voltage difference this control no further than what is required to eliminate the white line between the pilot and no-pilot condition is 0Vdc +/-25mV. -
Page 10: Screen (G2) Adjustment Procedure
back of the screen. The pattern will appear clearer if the front of Short Pins 1 and 6 of the J-Test Connector together. the screen is covered with a dark cloth. Connect a 2.4K resistor from Pin 6 of the J-Test Connector to Pin Cover 2 of the CRT Output Lenses with 7 inch square pieces of 3 (Red) of the same J-Test Connector... -
Page 11: Screen Geometric And Centering Adjustments
Litecontrols t o Re-tighten the Yoke clamp. correct bright areas of the picture. Remove ONLY the lower Setup Pin jumper, enabling Convergence Panel controls. Do not remove the other jumpers at Note: If the PTV is older or has m. u ch use, other adjustments may be this time (keep Customer Controls disabled). -
Page 12: Programming Factory Default Values
not be properly aligned). Off the chassis. .Re-tighten the Yoke clamp. Remove ONLY the lower .Setup Pin Jumper, enabling Adjustment of Registers in Test Mode: Convergence Panel Controls. Do not remove the other jumpers at When the receiver is operating in a Test Mode, all normal On-Screen this time (keep Customer Controls disabled). - Page 13 Picture Color Tint Sharpness Bass/Rear Volume Treble/Center Volume Balance Foreground Intensity OSD Vertical Position OSD Horizontal Position Red Convergence Horizontal Red Convergence Vertical Blue Convergence Horizontal Blue Convergence Vertical PIP Color PIP Tint Graphic Equalizer Level (00-0AH) Graphic Equalizer Level Graphic Equalizer Level Graphic Equalizer Level Graphic Equalizer Level...
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Page 14: Simplified Drawings
SECTION 4 - SIMPLIFIED DRAWINGS SCREEN ASSEMBLY CUSTOMER CRT's KEYBOARD SPEAKER SPEAKER APTIOOAO01 _483_97 CONVERGENCE _386 APTO96AO01 PANEL A10435A001 CRT, 4835-21_77382_ SOARDS i':!:!:!!!::!!:::! FIGURE 1 - PTV410 FrontView... -
Page 15: Figure 2 - Ptv410 Rearview
MIRROR ASSEMBLY POWER SUPPLY SIGNAL/DEFLECTION/HIGH VOLTAGE MODULE MODULE APW034A001 EMV101A001 4835-219-77389 4835*219-97105 2X5W AMP AMPOl 7A001 4835-219-57353 FOCUS/G2 AVIO JACK DISTRIBUTION PANEL BLOCK AVJ108A001 220493-3 4835-219-77367 4835-101-97018 FIGURE 2 - PTV410 RearView... -
Page 16: Figure 3 - Ptv420 Frontview
SCREEN ASSEMBLY CUSTOMER CRT's KEYBOARD SPEAKER SPEAKER APT100A001 4835-21' _-77386 APT096A001 CONVERGENCE PANEL CRT_ A10435A001 4835-21_77382_ ";';-;-,...:,,,: BOARDS FIGURE 3 - PTV420 FrontView... -
Page 17: Figure 4 - Ptv420 Rearview
MIRROR ASSEMBLY PIP MODULE i APP006A022 i POWER 4835-219-77376 SUPPLY SIGNAL/DEFLECTION/HIGH VOLTAGE MODULE MODULE APW034A001 EMV102A001 4835-219-77389 4835-219.971(36 , 2X5W AMP AMPO17A001 4835-219-573,53 FOCUS/G2 AVIO JACK PANEL DISTRIBUTION AVJ109A001 BLOCK 4835-219"77368 22049_3 4835-101-97018 FIGURE 4 - PTV420 RearView... -
Page 18: Figure 5 - Ptv430 Frontview
SCREEN ASSEMBLY TWEETER TWEETER CUSTOMER KEYBOARD CRI"s SPEAKER SPEAKER _ ---.a © APT098C003 4835-219-77409 APT099C003 4835-219-77411 4835-219-77412 CRT _ CONVERGENCE PANEL BOARDS}] _ _ _ _= _= == == _=_= == _= _= == == ==: _tll..A10435A001 4835-219-77382 FIGURE 5- PTV430 FrontView... -
Page 19: Figure 6 - Ptv430 Rearview
MIRROR ASSEMBLY MODULE 2X12.5W IMULTI-PIP APPOO6A022 POWER SUPPLY AMPO19AfX}I SIGNAL/DE FLECTION/HIGH VOLTAGE MODULE APW03_-_03 77375 EMV103A001 PRO-LOGIC MODULE 4835-219-97107 AMPO16A001 4835-219-7i413 A10467A001 4835-219-77374 4835-219-77383 100W AUDIO AMp APW036B_O2 AVIO JACK PANEL 4835-219-77377 I I_'OWER SUPF_Y AVJ110A001 4835-219-77369 FOCUS/G2 DISTRIBUTION BLOCK 220493-3 4835-10%97018 FIGURE 6 - PTV430 RearView... -
Page 20: Figure 7 - Ptv400 Block Diagram
r ..I---- ......_ ) _-/" ../////////////////////// FIGURE 7 - PTV400 Block Diagram... -
Page 21: Figure 8 - Ptv Power Supply Module Block Diagram
T401 FULL.POWER TRANSFORMER 155VDC 120VAC RECTIFIER BRIDGE FULL-POWER REGULATOR 3.1V I Glo 2.5v OUTPUT VOLTAGE REGULATOR IC405 OPTO-ISOLATOR IC401 R416 DUAL CONTROLLER 2.3V 13..= ON/OFF • 15V-STBY OPTO-ISOLATOR IC406 STANDBY 84,'1 ,,t B,,,, TRANSFORMER ON/OFF FOR • ..12.5W AMP 5V-STBY _,,vJ,G "... -
Page 22: Figure 9 - Ptv400 Power Supply Connections
AUDIO POWER AMP SMPS P467 P462 A402 P402 J467 J462 13OVJ_ 3461 15V.A NIEU I_V GND YELLOW YELLOW /'.o, PLUG 9V GND 9V.A SOU_RED _403 P403 5v STeY _VIISV "A" BOARD J403 I_'V.A _TBy WHITE WHITE • PLUG RESET •P" BOAR_ POWER SUFf_Y 15V-B ISV.B... -
Page 23: Figure 10 - Ptv400 Shutdown Circuitry
Tgo0 _F_qU_R _'GH VOLTAGE TF-jS W_4 WX_'_ E F_OU_CY _ECK O_,ER mEous_:y • 0901 S¢_UTDOe_ HKU4 _LTAGE ADJ_T • = SMD (SURFACE MOUNTED DEVICE) VEP_ TO F_CTURE TUBES FIGURE 10- PTV400 Shutdown Circuitry... - Page 24 SHUTOOWN l oecooe. /_--_ _A,==, " _'_"' 300t_Z _EP HV SYNC FRO(_qOA COMB RLTER HVOT "_ CHAR GEN HIGH V_TAGE BLEEDER © "_IO _ FOLLO_IV,_ TE_T FONTS SVMDVR oc_TED _olJNo Icl Io T_4: 0703 RBOVR SUB CGNT I_PS_ I_SV TPllB ICg01 _02_ _VMOV R...
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Page 25: Figure 14 - Ptv400 Jack Panel Connections
PTV410 PTV420 PTV430 INT/EXT USED S-VHS2 SENSE D225 D250 RIGHTSPEAKER TUN AUD LEFT NOCONNECTION TUN AUD RIGHT < LEFT SPEAKER A610 D610 I J610 J610 )466 J466 LEFT OUT L.410 D410 J410 PRO-LOGIC "A' BOARD CTI_I BOARD RIGHTOUT S_N_._ER£ JK2_) 15¥... - Page 26 "N"BOARD RED CRT J580 PLUG SCREEN FOCUS _9 A600 E600 J600 RED DRIVE YELLOW YELLOW GREEN DRIVE PLUG "A° BOARD PLUG BLUE DRIVE 'E'BOARD J401 GREENCRT A401 E401 ---_BLUESVM 220V J577 NO CONNECTION 130V • --=_ll_ 220V 130VoB ---I_GREENSVM FILAMENT PLUG PLUG FILAMENT...
- Page 27 "C" BOARD IR RECEIVER ARR012 4835-219-77378 "D" BOARD "L" BOARD JACK PANEL MODULE 5 WATt'/CHANNEL 00AVJ108 00AMP017 "B" BOARD 4835-2! 9-77367 4835-21 9-57353 KEYBOARD/LED 00ASWI04 4835-21977379 RED CRT 00APT096 "N" BOARD 4835-219-77387 "P" BOARD "A=BOARD "E"BOARD POWER SUPPLY MODULE GREEN CRT SIGNAL/DEFLECTION MODULE APW034...