Philips L01H.2E Service Manual
  1. Manuals
  2. Brands
  3. Philips Manuals
  4. TV
  5. L01H.2E
  6. Service manual
Philips L01H.2E Service Manual

Philips L01H.2E Service Manual

Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Colour Television
Contents
6. Block Diagram, Testpoints, I
Voltage Overview
2
I
C And Supply Voltage Overview
7. Electrical Diagrams and PWB's
Power Supply
Line Deflection
Frame Deflection
Tuner IF
Video IF and Sound IF
Synchronization
Control
Audio Amplifier
BTSC (Stereo/SAP) Decoder
Audio/Video Source Switching (Diagram A10) 26
Front I/O + Control, Headphon (Diagram A12) 27
Rear I/O SCART
CRT Panel
EPS 4 External Power Supply (Diagram F)
Clock Panel
UIR/LS/Vbat Panel
SP/LS Panel
Interface Panel
©
Copyright 2001 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.
Published by RB 0172 Service PaCE
Page
2
4
5
7
8
2
C And Supply
13
14
15
16
Diagram PWB
(Diagram A1)
17
29-34
(Diagram A2)
18
29-34
(Diagram A3)
19
29-34
(Diagram A4)
20
29-34
(Diagram A5)
21
29-34
(Diagram A6)
22
29-34
(Diagram A7)
23
29-34
(Diagram A8)
24
29-34
(Diagram A9)
25
29-34
29-34
29-34
(Diagram A14) 28
29-34
(Diagram B)
35
36
37
38
(Diagram G)
39
39
(Diagram H)
40
41
(Diagram I)
42
41
(Diagram J)
43
44
Printed in the Netherlands
Contents
List of Abbreviations
Subject to modification
Chassis
L01H.2E
AA
CL 16532138_035.eps
211201
Page
45
50
59
61
EN 3122 785 11640

Advertisement

Table of Contents
loading

Related Manuals for Philips L01H.2E

Summary of Contents for Philips L01H.2E

  • Page 1: Table Of Contents

    All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by RB 0172 Service PaCE...

  • Page 2: Technical Specifications, Connections And Chassis Overview

    EN 2 L01H.2E Technical Specifications, Connections and Chassis Overview 1. Technical Specifications, Connections and Chassis Overview Note: Described specifications are valid for the whole product : NTSC 4.43 (playback range. only) Channel selections : 100 channels : UVSH Technical Specifications IF frequency : 38.9 MHz...
  • Page 3 Technical Specifications, Connections and Chassis Overview L01H.2E EN 3 10 - 32 PIN SMART CARD CONNECTOR (0.7 Vpp / 75 Ω) 11 - Green / Y 12 - 13 - 14 - (0.7 Vpp / 75 Ω) 15 - Red / V 0 - 0.4 V: INT 1 - 3 V: EXT / 75 Ω...

  • Page 4: Safety & Maintenance Instructions, Warnings And Notes

    EN 4 L01H.2E Safety & Maintenance Instructions, Warnings, and Notes 2. Safety & Maintenance Instructions, Warnings, and Notes Safety Instructions For Repairs Warnings Safety regulations require that during a repair: • In order to prevent damage to ICs and transistors, avoid all •...

  • Page 5: Directions For Use

    Directions for Use L01H.2E EN 5 3. Directions for Use...
  • Page 6 EN 6 L01H.2E Directions for Use...

  • Page 7: Mechanical Instructions

    Mechanical Instructions L01H.2E EN 7 4. Mechanical Instructions Note: Figures below can deviate slightly from the actual situation, due to the different set executions. Rear Cover Removal 1. Remove all (seven) fixation screws of the rear cover: two at the top, two at each side and one near the mains cord holder.

  • Page 8: Service Modes, Error Codes And Faultfinding

    EN 8 L01H.2E Service Modes, Error Codes and Fault Finding 5. Service Modes, Error Codes and Fault Finding Index: – 475.25 MHz for PAL/SECAM (Europe and AP-PAL) 1. Test points. • Colour system: 2. Service Modes. – PAL-M for LATAM BI/TRI/FOUR-NORMA.
  • Page 9 Service Modes, Error Codes and Fault Finding L01H.2E EN 9 – (Europe: 1 = Basic, Basic Plus and System, CSM Menu English, French, German and Italian) AAAABC – (AP: 1 = Z, R and Y System, English, Malay and CODE Simplified Chinese) –...
  • Page 10 EN 10 L01H.2E Service Modes, Error Codes and Fault Finding 2. Select the INSTALLATION sub menu. 5.3.2 Sound Problems 3. Select and change the SYSTEM setting until picture and sound are correct. No Sound or Sound too Loud (After Channel Change / 4.
  • Page 11 Service Modes, Error Codes and Fault Finding L01H.2E EN 11 The Blinking LED Procedure • Set is non-stop in hiccup mode Set is in over current mode; check the secondary sensing (opto coupler 7515) and the 'MainSupply' voltage. Signal Via this procedure, you can make the contents of the error 'Stdby_con' must be logic low under normal operation buffer visible via the front LED.
  • Page 12 EN 12 L01H.2E Service Modes, Error Codes and Fault Finding Personal Notes:...

  • Page 13: Block Diagram

    Block- and Wiring Diagram, Testpoints, I2C, and Supply Voltage Over- L01H.2E 6. Block- and Wiring Diagram, Testpoints, I C, and Supply Voltage Overview Block Diagram 0240 SP/LS (For PRO-BASIC and SYSTEM) CLOCK INTERFACE (only for "SYSTEMS" sets) AUDIO AMPLIFIER FRONT CONTROL CONTROL +3.3V...

  • Page 14: Wiring Diagram

    Block- and Wiring Diagram, Testpoints, I2C, and Supply Voltage Over- L01H.2E Wiring Diagram SP/LS MODULE 1251 1246 LEFT 0211 RIGHT 0242 0227 0228 0237 1251 1246 0246 0251 0217 0217 0240 1259 PRO-BASIC VERSION 0259 INTERFACE MODULE (either is in or...

  • Page 15: Testpoint Overview

    Block- and Wiring Diagram, Testpoints, I2C, and Supply Voltage Over- L01H.2E Testpoint Overview Main Panel Copper Track Side AUDIO OUTPUT 7901 OR 7902 500mV / div DC 500mV / div DC 1V / div DC 250ns / div 5ms / div 20us / div TV-PROC.
  • Page 16 Block- and Wiring Diagram, Testpoints, I2C, and Supply Voltage Over- L01H.2E C and Supply Voltage Diagram POWER SUPPLY LINE DEFLECTION 6560 5445 VIDEO ANODE CRT OUTPUTS 150 - 250V FOCUS FOCUS 3336 6561 MAIN SUPPLY 3487 FOCUS CRT C-7332 SINGLE RANGE...
  • Page 17 Schematics and PWB’s L01H.2E 7. Schematics and PWB’s Mono Carrier: Power Supply 3502 B4 0211 B1 0282 F11 2502 B5 2507 B7 2521 D1 2526 D6 2547 F9 2563 D8 2568 G8 3507 D3 3522 C5 3527 B6 3540 E8...
  • Page 18 Schematics and PWB’s L01H.2E Mono Carrier: Line Deflection 0220 F6 6416 F4 0221 A5 6419 D9 2400 F4 6420 E10 LINE DEFLECTION 2403 D2 6423 F9 2404 A4 7401 E2 2405 D3 7402 D4 2406 D3 7403 D2 BC857B 3411...
  • Page 19 Schematics and PWB’s L01H.2E Mono Carrier: Frame Deflection 0222 C6 2472 C3 2475 C2 2477 B2 3472 D5 3474 B2 3476 C4 3478 C5 5471 B5 6472 B5 7471 B3 2471 B3 2473 A4 2476 C4 3471 D5 3473 B1...
  • Page 20 Schematics and PWB’s L01H.2E Mono Carrier: Tuner IF 2008 C4 2010 A3 3001 C2 3003 B6 3005 C7 3007 D4 3009 D5 3011 D3 4001 C4 4003 E5 4005 D5 4007 B6 4012 F6 5002 C4 6001 A4 6003 C5...
  • Page 21 Schematics and PWB’s L01H.2E Mono Carrier: Video IF + Sound IF 0243 C6 4216 F9 0248 C2 5201 D7 0249 B2 5202 A8 0266 E11 6201 F4 VIDEO IF + SOUND IF 0276 C2 6202 F5 1200 E7 6206 G4...
  • Page 22 Schematics and PWB’s L01H.2E Mono Carrier: Synchronisation 2241 D3 2243 B3 2245 D4 2247 B6 2249 B2 2252 C6 2254 A2 3242 B2 3245 D4 3247 D6 3249 C6 3251 B6 3256 B6 3258 B2 5241 A6 6241 E4 7241 E5...
  • Page 23 Schematics and PWB’s L01H.2E Mono Carrier: Control 0217 F2 FOR ITV ONLY 0240 A2 CONTROL 0240 0250 B2 0261 D2 DATA-OUT 0273 A4 3611 +3.3V +3.3V 0274 B8 DATA-IN TO 0240 5602 100R 0287 B2 CLOCK 1660 E7 7602 2601 A6...
  • Page 24 Schematics and PWB’s L01H.2E Mono Carrier: Audio Amplifier + Mono Sound Processing 0246 B10 0271 B2 0275 B4 2901 A7 AUDIO_AMPLIFIER + MONO_SOUND_PROCESSING 2902 A7 2903 B5 2904 B4 2905 B5 AUDIO AMPLIFIER 2906 C4 2907 C5 AmpOutR+ 2908 E5...
  • Page 25 Schematics and PWB’s L01H.2E Mono Carrier: NICAM + 2CS + BTSC (Stereo / SAP) Decoder 1831 B8 2831 C8 2832 C8 2833 C4 NICAM + 2CS + BTSC (STEREO/SAP) DECODER 2834 B4 2843 2835 B4 2836 B4 2837 B4 2842...
  • Page 26 Schematics and PWB’s L01H.2E Mono Carrier: Audio / Video Source Switching 2801 B4 2802 F4 AUDIO/VIDEO SOURCE SWITCHING 2803 D2 2804 C5 Output HEF Logic 2805 E5 Scart1 Scart2 Monitor SEL-MAIN-FRNT-RR SC2_CTRL 3801 A2 3801 +6V8 3802 A2 Front In...
  • Page 27 Schematics and PWB’s L01H.2E Mono Carrier: Front I/O + Front Control + Headphone 0214 D9 0218-A C2 0218-C A2 0232 E5 0259 D10 0277-A A1 0278 D7 0292 E4 1182 B2 1600 B10 1602 A9 1606 A7 2182 B3 2184 B4...
  • Page 28 Schematics and PWB’s L01H.2E Mono Carrier: Rear I/O SCART 0224-A F11 3117 E4 0224-B F11 3118 E5 0227 A7 3119 F3 REAR I/O SCART 0229 E7 3120 F4 0235-A A1 3121 F3 TO 0227 0F TO 0227 0F 0235-B A11...
  • Page 29 Schematics and PWB’s L01H.2E Layout Mono Carrier (Top View) 0211 A2 2903 D3 3832 D2 9508 C4 0212 B2 2908 E3 3833 D2 9509 B4 0213 B2 2941 E3 3834 C2 9510 C4 0214 B1 2981 B1 3836 C2 9511 C5...
  • Page 30 Schematics and PWB’s L01H.2E Layout Mono Carrier (Overview Bottom View) 2001 A6 2602 B4 3236 A6 4003 A5 7002 A5 2002 A6 2606 B5 3237 A6 4004 A5 7101 B6 2003 A5 2607 B4 3238 A6 4005 A5 7131 B6...
  • Page 31 Schematics and PWB’s L01H.2E Layout Mono Carrier (Part 1 Bottom View) Part 1 CL 16532053_10a.eps 160501...
  • Page 32 Schematics and PWB’s L01H.2E Layout Mono Carrier (Part 2 Bottom View) Part 2 CL 16532053_10b.eps 160501...
  • Page 33 Schematics and PWB’s L01H.2E Layout Mono Carrier (Part 3 Bottom View) Part 3 CL 16532053_10c.eps 170501...
  • Page 34 Schematics and PWB’s L01H.2E Layout Mono Carrier (Part 4 Bottom View) Part 4 CL 16532053_10d.eps 170501...
  • Page 35 Schematics and PWB’s L01H.2E CRT Panel 3341 E5 3348 D5 3350 E6 5342 G2 6321 C4 6341 A4 6343 G4 7312 D4 7321 C3 7323 C4 7332 A4 9300 F3 VG2 F9 0244 G2 0254-A D7 2313 E3 2331 B3...
  • Page 36 Schematics and PWB’s L01H.2E Layout CRT Panel (Top View) Layout CRT Panel (Bottom View)
  • Page 37 Schematics and PWB’s L01H.2E EPS 4 (External Power Supply) EPS 4 (External Power Supply) UU9.8 22MH UU9.8 22MH 0211 1A/250V 5W 400V (Power Supply) 0.1UF/275VAC 33UF/450V 1.5M(1/2W) 1A 600V 7.5M 0.01UF/1KV 0.001UF/1KV 0228 RH-3.5*0.8*9 KA278R12 330UF/25V 3A 100V 1A 100V...
  • Page 38 Schematics and PWB’s L01H.2E Layout EPS 4 (External Power Supply) R13 B3 R14 B1 R16 B1 BR1 D4 R23 B4 R25 B2 R26 B2 R27 B3 R28 B3 R29 B3 C11 B3 ZD1 D3 C12 D2 ZD2 C3 C20 C1...
  • Page 39 Schematics and PWB’s L01H.2E Clock Display CLOCK DISPLAY BC857B TestLand1 TestLand4 Port4 100nF TestLand5 TestLand2 BC857B TestLand3 Port5 BC857B PIC16C62A Port0 MCLR/VPP Port1 BAT54 Port2 Port8 Port3 Port4 10uF 100nF Port5 VSS1 LED-DRIVER BC857B OSC1 Port6 Port6 Port7 12MHz Port8...
  • Page 40 Schematics and PWB’s L01H.2E UIR / LS / Vbat Module IM7805CT UIR/LS/VBAT MODULE C7100nF 100nF T0 0251 OF 1251 0237 T0 0237 OF 3K3 (5W) MP40 Main AUX Stdby V_bat BF422 CLOCK 4-P (Black) Hor Conn 4-P (White) Hor Conn...
  • Page 41 Schematics and PWB’s L01H.2E Layout UIR / LS / Vbat Module (Top View) Layout UIR / LS / Vbat Module (Bottom View) WHITE BLACK BLACK 0237 1251 1246 R32 R10 JP12 JP23 3139 127 28111 0262 VER. 3.1 BLUE CL 16532138_031.eps CL 16532138_030.eps...
  • Page 42 Schematics and PWB’s L01H.2E SP/LS Module 0262 F2 T0 0251 OF 1246 F7 1251 SP / LS MODULE 1251 A7 Main_aux 1259 C7 270R 1N4148 Std_by 100uF C5V6 3-P (White) Ver POWER SUPPLY D10 E2 100R 100R D11 F4 D12 F5...
  • Page 43 Schematics and PWB’s L01H.2E Interface Panel INTERFACE PANEL To EPS 0228 0228 EH-B(5) TO 0228 OF USA ONLY 5705 2700 +5Veps 3740 +12Veps AGND 220R-NL 3704 7710 +3.3Veps 3700 DS1813R-5 2702 (Red) AGND AGND AGND 3702 AGND Reset +12Veps 7712...
  • Page 44 Schematics and PWB’s L01H.2E Layout Interface Panel Personal Notes: 0242 White 0227 9005 Black 1002 9001 1800 0228 3739 9020 3740 1700 6701 6703 0217 White 9008 Yellow 2703 0240 1776 9010 0251 Black 9004 9002 9021 1259 White PHILIPS...

  • Page 45: Alignments

    Alignments L01H.2E EN 45 8. Alignments Index: 8.2.1 Vg2 Adjustment (AKB method) General Alignment Conditions Hardware Alignments 1. Connect the RF output of a pattern generator to the Software Alignments and Settings antenna input. Test pattern is a 'black' picture (blank screen on CRT without any OSD info).
  • Page 46 122 0 ON / OFF 17HT5404/01Z 8 122 0 WIDESCREEN ON / OFF 17HT5404/05Z 8 122 0 TUNER NONE / APLS / PHILIPS 17HT5404/21R 8 122 0 ON / OFF 17HT5404/25R 8 122 0 RADIO ON / OFF 21HT3154/01 117 0...
  • Page 47 Radio 1 = Tuner has FM radio feature and TV chasis support FM radio 1 = Tuner has LNA feature Tuner 0 = None (no tuner), 1 = Philips (model), 2 = Alps (model) Byte 3 Not Used (Devices) Not Used...
  • Page 48 EN 48 L01H.2E Alignments 8.3.2 Deflection 8.3.4 White Tone The Deflection Sub menu contains the following items: White Tone Menu • AKB, ON to enable, OFF to disable the 'black current loop' (AKB = Auto Kine Bias). • Brightness, (set Brightness) •...
  • Page 49 Alignments L01H.2E EN 49 8.3.5 Geometry • Select Vertical Zoom to align the vertical linearity over the entire screen height (for 16 : 9 applications only). • Set Trapezium Correction to align the lines at the vertical The geometry alignments menu contains several items to align sides.

  • Page 50: Circuit Description

    EN 50 L01H.2E Circuit Description 9. Circuit Description Index of this chapter: 1. Introduction The L01 is divided into 2 basic systems, i.e. mono and stereo 2. Audio Signal Processing sound. While the audio processing for the mono sound is done 3.
  • Page 51 Circuit Description L01H.2E EN 51 AUDIO SOURCE SELECTION EXT. AUDIO 7801 7861 INPUT 7831 EXT. AUDIO OUT CONTROL AUDIO DECODING 7209 7210 7901 PROCESSING SELECTION FM IF MATR. SWITCH AUDIO BUFFER AMPL. 7834 7835 7200 RF ANT. SOUND FM ANT.
  • Page 52 EN 52 L01H.2E Circuit Description 9.2.3 FM radio (if present) 7200 The FM radio uses the 10.7 MHz concept. This SIF frequency is available at pin 10 of the tuner. Via a pre-amplifier (TS7209 RGB/YUV INSERT 56 58 PANEL and TS7210), the signal is fed for demodulation to either the...
  • Page 53 Circuit Description L01H.2E EN 53 signal. It operates in such a way that maximum stretching 9.3.7 RGB Amplifier is obtained when signals with a low video level are received. For bright pictures, stretching is not active. From outputs 56, 57 and 58 of IC7200, the RGB signals are •...
  • Page 54 EN 54 L01H.2E Circuit Description 9.5.2 Vertical Drive SUPPLY START-UP V CC DRAIN A divider circuit performs the vertical synchronisation. The MANAGEMENT CURRENT SOURCE clamp vertical ramp generator needs an external resistor (R3245, pin internal UVLO start n.c. VALLEY supply M-level 20) and capacitor (C2244, pin 21).
  • Page 55 Circuit Description L01H.2E EN 55 Degaussing Control Circuit B1/B2 Main Supply Focus n⋅V Mains AC Input Main Power Panel VideoSupply Supply Main Aux Filament Tilt& Rotation Degaussing GATE Circuit VlotAux +13V 3V3 Reg. Correction Horizontal Vaux Deflection GATE +3.9V +3.3V...
  • Page 56 EN 56 L01H.2E Circuit Description The moment that the voltage on pin 1 drops below the ‘under voltage lock out‘ level (UVLO = ± 9 V), the IC will stop switching and will enter a safe restart from the rectified mains voltage.
  • Page 57 Circuit Description L01H.2E EN 57 In Standby, the power supply works in ‘burst mode’. Burst mode can be used to reduce the power consumption Active/ below 1 W at stand-by. During this mode, the controller is active inactive (generating gate pulses) for only a short time and for a longer time inactive waiting for the next burst cycle.
  • Page 58 EN 58 L01H.2E Circuit Description Over Power Protection 9.7.1 Introduction During the primary stroke, the rectified AC input voltage is measured by sensing the current drawn from pin 4 (DEM). This The microprocessor part of the UOC has the complete control current is dependent on the voltage on pin 9 of transformer and teletext on board.
  • Page 59 Circuit Description L01H.2E EN 59 – 9.5 to 12 V: EXTERNAL 4:3 Abbreviation list • SEL-MAIN-FRNT-RR This is the ‘source select control’ signal from the microprocessor. This control line is under 2 Carrier (or Channel) Stereo user control or can be activated by the other two control Automatic Channel Installation: lines.
  • Page 60 EN 60 L01H.2E Circuit Description Horizontal Flyback Pulse: horizontal Serial Clock sync pulse from large signal deflection Serial Data Headphone Service Default Mode Colour phase control for NTSC (not SECAM SEequence Couleur Avec Memoire. the same as ‘Tint’) Colour system mainly used in France Monochrome TV system.

  • Page 61: Spare Parts List

    Spare Parts List L01H.2E EN 61 10. Spare Parts List Mono Carrier [A1-14] 2161 4822 124 12392 47µF 20% 16V 2508 4822 122 50116 470pF 10% 1KV 2201 4822 126 14585 100nF 10% 50V 2515 4822 126 14049 1.5nF 20% 250V...
  • Page 62 EN 62 L01H.2E Spare Parts List 3002 4822 117 10833 10k 1% 0.1W 3415 4822 050 11002 1k 1% 0.4W 3630 4822 117 11449 2k2 5% 0.1W 3003 4822 117 11139 1k5 1% 0.1W 3416 4822 052 11398 3Ω9 5% 0.5W...
  • Page 63 Spare Parts List L01H.2E EN 63 6405 4822 130 42488 BYD33D 0245 2422 025 04854 CON 6P Female 6406 5322 130 34331 BAV70 0254 2422 500 80076 SOC CRT 9P F N-NECK B UIR/LS/Vbat Module [H] 6407 4822 130 11397 BAS316...
  • Page 64 EN 64 L01H.2E Spare Parts List 4822 130 81637 PMLL4148L 4822 130 34441 BZX79-B22 4822 130 34441 BZX79-B22 4822 051 30103 10K 5% 0,062W 6701 4822 130 42488 BYD33D 4822 051 30103 10K 5% 0,062W 6702 4822 130 83757 MCL4148...

Table of Contents