Philips EM1A Specifications

Published by CO 0070 Service PaCE Printed in the Netherlands Subject to modification 5 3122 785 10850©Copyright 2000 Philips Consumer Electronics B.V.

Directions for useGB 10 EM1A3.Personal notes: 19Before Calling ServiceSymptoms“Ghost” or double images No powerNo pictureGood picture but no soundGoo

Mechanical instructionsGB 11EM1A 4.4. Mechanical instructions4.1 Removing the Rear Cover1. Remove all the fixation screws of the rear cover. 2. Now th

Mechanical instructionsGB 12 EM1A4.10. Reconnect cables (except degaussing cable 0020), panels and modules.Alternative position 2: A somewhat easier w

Mechanical instructionsGB 13EM1A 4.4.2.3 Accessing the Double Window (DW) panel Figure 4-6 1. Remove the DW bracket from the bottom tray by pulling it

Mechanical instructionsGB 14 EM1A4.4.2.8 Accessing the Side I/O panelFigure 4-10 1. The complete Side I/O-assembly can easily be removed by unscrewing

Fault finding and repair tipsGB 15EM1A 5.5. Fault finding and repair tipsIn this chapter the following paragraphs are included:1. Test points.2. Servi

Fault finding and repair tipsGB 16 EM1A5.Entering• Via a standard RC-handset by entering the code '062596' followed by the 'OSD' b

Fault finding and repair tipsGB 17EM1A 5.Menu controlMenu items can be selected with the 'CURSOR UP/DOWN' key. The selected item will be hig

Fault finding and repair tipsGB 18 EM1A5.Colours not correct / unstable pictureCheck CSM line 4. Wrong colour system installed. To change the setting:

Fault finding and repair tipsGB 19EM1A 5.A question could be: Does the screen give a picture? (Click on the correct answer)YES / NOAn example can be:

Technical specifications, connection facilities & chassis overviewGB 2 EM1A1.1. Technical specifications, connection facilities & chassis over

Fault finding and repair tipsGB 20 EM1A5.ERROR: 9 6 0 0 0 0 0 : Error code 6 was first detected and error code 9 is the last detected (newest) error T

Fault finding and repair tipsGB 21EM1A 5.This error is covered by the Flash/Main routine described at error 7. When during restart the 8 V remains abs

Fault finding and repair tipsGB 22 EM1A5.Figure 5-6 There are several types of protections:• I2C related protections (e.g. +5V supply check).• HOP rel

Fault finding and repair tipsGB 23EM1A 5.Figure 5-8 CL 06532130_021.eps171000on+5V and +8V levels can be detected by the Painter. Vcc of the HOP is pr

Fault finding and repair tipsGB 24 EM1A5. • Notice that a very big part of the set (Large Signal Panel) is 'hot', meaning the primary part o

Fault finding and repair tipsGB 25EM1A 5.No picture, no LED. Standby Supply defective. Measure circuitry (see diagram A2). Start at test-point P16.Reg

Fault finding and repair tipsGB 26 EM1A5.Personal notes:

AlignmentsGB 77EM1A 8.8. AlignmentsNote: The Service Default Mode (SDM) and Service Alignment Mode (SAM) are described in chapter 5.8.1 General alignm

AlignmentsGB 78 EM1A8.Initial set-up1. Connect an external video pattern generator (PAL BG, 475.25 MHz) to the aerial input of the TV-set with a cross

AlignmentsGB 79EM1A 8.• -63 to -1 represent a negative offset (-63 is the minimum negative offset). 1. Set pattern generator (e.g. PM5418) to a white

Technical specifications, connection facilities & chassis overviewGB 3EM1A 1.1.3 Chassis overviewFigure 1-3 CL 06532130_003.eps181000LARGE SIGNAL

AlignmentsGB 80 EM1A8.Option table (version 1A1):Table 8-2 Byte Bit Abbr. Feature Description (OFF = 0, ON = 1)OB1 1 AUSB Auto Standby After 2hrs OFF

AlignmentsGB 81EM1A 8.Option table (version 2A1 / 2A2):Table 8-3 Byte Bit Abbr. Feature Description (OFF = 0, ON = 1)OB1 1 AV3 Side AV source OFF = si

Circuit descriptions and abbreviation listGB 82 EM1A9.9. Circuit descriptions and abbreviation list9.1 Circuit descriptionsThe following circuits are

Circuit descriptions and abbreviation listGB 83EM1A 9.The tuner type is a PLL tuner and delivers the IF-signal, via audio & video SAW-filters, to

Circuit descriptions and abbreviation listGB 84 EM1A9.voltage polarity at the secondary winding is negative (due to different winding direction), mean

Circuit descriptions and abbreviation listGB 85EM1A 9.Since there are no capacitors and there is a high amplification-factor in the feedback circuit,

Circuit descriptions and abbreviation listGB 86 EM1A9.To stabilise the output voltage, a feedback loop is implemented, which will reduce TON when VBAT

Circuit descriptions and abbreviation listGB 87EM1A 9.NVMThe Non Volatile Memory contains all set related data that must be kept permanently, such as:

Circuit descriptions and abbreviation listGB 88 EM1A9.100 Hz conversionThe main task of the PICNIC is the conversion from 50 Hz to 100 Hz for YUV and

Circuit descriptions and abbreviation listGB 89EM1A 9.During the 1st frame, 3 pulses are generated to adjust the cut-off voltage at a current of 8 µA.

Safety & maintenance instructions, warnings and notesGB 4 EM1A2.2. Safety & maintenance instructions, warnings and notes2.1 Safety instruction

Circuit descriptions and abbreviation listGB 90 EM1A9.Figure 9-9 Period t1 - t2:When TS7421 is driven into conductivity, the capacitor voltage of 141

Circuit descriptions and abbreviation listGB 91EM1A 9.flowing in L5422 (1-2). The voltage across the deflection coil increases, so the picture width i

Circuit descriptions and abbreviation listGB 92 EM1A9.Via the circuit built around TS7641 the frame output stage is guarded. If the frame output stage

Circuit descriptions and abbreviation listGB 93EM1A 9.The supply voltage is +28 V, generated by the main supply via L5506. Muting is done via the SOUN

Circuit descriptions and abbreviation listGB 94 EM1A9.Block DiagramThere is one configuration as shown below.Figure 9-13 Circuit DescriptionIF & V

Circuit descriptions and abbreviation listGB 95EM1A 9.Figure 9-14 In order to display the external AV sources by the DW panel, source selection circu

Circuit descriptions and abbreviation listGB 96 EM1A9.9.2 Abbreviation listAARA Automatic Aspect Ratio Adaptation: algorithm that adapts aspect ratio

Circuit descriptions and abbreviation listGB 97EM1A 9.IN-SC1-G In EXT1 GreenIN-SC1-R In EXT1 RedIN-SC1-SNDL In EXT1 sound leftIN-SC1-SNDR In EXT1 soun

Spare parts listGB 98 EM1A10.10. Spare parts list[A] Large Signal Panel + [F] CRT PanelVarious3122 785 90260 Main Supply Repair Kit3122 785 90270 Stan

Spare parts listGB 99EM1A 10.3316 4822 117 11148 56k 1% 0.1W3318 4822 051 20478 4Ω7 5% 0.1W3319 4822 051 10102 1k 2% 0.25W3321 4822 053 12472 4k7 5% 3

Safety & maintenance instructions, warnings and notesGB 5EM1A 2.2.4 Notes• The direct voltages and oscillograms should be measured with regard to

Spare parts listGB 100 EM1A10.6111 4822 130 83865 SB3606120 4822 130 30621 1N41486121 4822 130 30621 1N41486122 3198 010 53980 BZX79-B3V96200 9322 149

Spare parts listGB 101EM1A 10.2640 4822 126 13879 20nF 20-80% 16V2651 4822 126 14305 100nF 10% 16V2652 4822 122 33777 47pF 5% 63V2653 4822 122 32927 2

Spare parts listGB 102 EM1A10.3706 4822 051 30109 10Ω 5% 0.062W3707 4822 051 30392 3k9 5% 0.063W3708 4822 051 30272 2k7 5% 0.062W3709 4822 051 30008 J

Spare parts listGB 103EM1A 10.2832 4822 126 14043 1µF 20-80% 16V2833 4822 126 14305 100nF 10% 16V2834 4822 124 40248 10µF 20% 63V2836 4822 126 14305 1

Spare parts listGB 104 EM1A10.f3901 4822 051 20101 100Ω 5% 0.1W3902 4822 116 52201 75Ω 5% 0.5W3903 4822 051 20101 100Ω 5% 0.1W3904 4822 116 52201 75Ω

Directions for useGB 6 EM1A3.3. Directions for use2A/CHMENU SURFSMARTSMARTCHV¬ibhf◊hîgUXC5132467980AVPIPPIP CHUP DNACTIVE CONTROLPROGRAM LISTDOLBY V.D

Directions for useGB 7EM1A 3.6InstallationSorting of channelsAccording to your preference you can change the order of the stored TVchannels.&Selec

Directions for useGB 8 EM1A3.16Connect Peripheral Equipment75CABLEVCRAV 2inAV 1inMonitoroutCOMPONENT VIDEO INPUTVIDEOL/MonoRYPbPrAUDIOS-VIDEOOUTOUTOUT

Directions for useGB 9EM1A 3.18RecordEquipment connected with an aerial cable only :Select the channel number under which you have stored the test sig