PHILIPS L9.1E-AB Service Manual

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Page 1

Colour Television Chassis

CL 06532025_036.eps

160500

L9.1E

Contents Page Contents Page

1. Technical specifications, connections and chassis overview 2

2. Safety instructions, warnings and notes 4

3. Direction for use 6

4. Mechanical instructions 9

5. Faultfinding and repair tips 10

Block diagram

6. Supply voltage diagram 19 Block diagram 20 Oscillogram overview 21 Testpoint overviews 21

Schematics and PWBs Diagram PWB

7. Power supply (Diagram A1) 22 35-37 Diversity table A1-A3 23 Horizontal deflection (Diagram A2) 24 35-37 Vertical deflection (Diagram A3) 25 35-37 Synchronisation (Diagram A4) 26 35-37 Tuner + video IF (Diagram A5) 27 35-37 Video processing (Diagram A6) 28 35-37 Control (Diagram A7) 29 35-37 Front control (Diagram A8) 30 35-37 Nicam + 2CS decoder (Diagram A10) 31 35-37 Smart sound (Diagram A11) 33 35-37 Audio amplifier (Diagram A12) 32 35-37 Headphone (Diagram A13) 33 35-37 I/O Scart (Diagram A15) 34 35-37 CRT panel (Diagram B) 38 39 Side AV panel (Diagram E1) 40 40 Smart ATS (Diagram S) 41 41 Top control panel (RF) (Diagram T) 42 42 Top control panel (FSQ) (Diagram T1) 42 42 Mains harmonic panel (Diagram U) 41 41

8. Alignments 43

9. Circuit description new circuits 47 List of abbreviations 53

10. Spare parts list 55

Copyright 2000 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 JvR 0065 Printed in the Netherlands Subject to modification 5 312278510720

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GB 2 L9.1E AB1.

Technical Specifications, connections and chassis overview

1. Technical Specifications, connections and chassis overview

1.1 Technical Specifications

Mains voltage : 90V - 276Vac; 50-

Maximum power consumption

• 25” : 75W +/- 10%

• 28” : 90W +/- 10%

• 29” : 90W +/- 10% Standby power consumption : 6W +/- 10%

1.2 Connection facilities

60Hz

EXT1

EXT2

Colour Synchronisation : Sub-carrier pull in range : +/- 300Hz Horizontal Synchronisation : Catching range : +/- 600 Hz Holding range : +/- 1200 Hz Vertical Locking Range : 49 Hz - 61Hz Tuner : UV 1316/AI-2 (PAL/

FRONT + TOP CONTROL

- VOLUME +

- PROGRAM +

RED

SECAM)

SIDE I/O

S-Video

Video

L Audio R

CL 06532025_037.eps

010200

1.2.1 Scart 1: CVBS(in/out) + RGB(in) - tuner at output

1 - Audio Out R (0.5Vrms <= 1kΩ) 2 - Audio In R (0.2-2Vrms >= 10kΩ) 3 - Audio Out L (0.5Vrms <= 1kΩ) 4 - Earth screen 5 - Earth screen 6 - Audio In L (0.2-2Vrms >= 10kΩ) 7 - Blue (0.7Vpp/75Ω) 8 - CVBS status (INT = 0-2V, EXT(16:9) = 4.5-7V,

EXT(4:3) = 9.5-12V) 9 - Earth screen 10- - 11- Green (0.7Vpp/75Ω) 12- - 13- Earth screen 14- Earth screen 15- Red (0.7Vpp/75Ω) 16- FBL (>0.9V RGB mode ) 17- Earth screen 18- Earth screen 19- CVBS 20- CVBS (1Vpp/75Ω) 21- Earth screen

1.2.2 Scart 2: CVBS (in/out) + SVHS(in)

Figure 1-1

H k k

H k

11- - 12- - 13- Earth screen 14- Earth screen 15- C (300mVpp/75Ω) 16- - 17- Earth screen 18- Earth screen 19- CVBS 20- CVBS/Y (1Vpp/75Ω) 21- Earth screen

1.2.3 Cinch - audio/video in

1 - CVBS

(yellow) (1Vpp 75Ω) 2 - Audio L (red) (0.2-2Vrms 10kΩ) 3 - Audio R

(white) (0.2-2Vrms 10kΩ)

1.2.4 Headphone

1 - 8-600Ω (4mW)

H H

q q

Input = EXT2 => output = tuner Input = tuner/EXT1 => output = tuner/EXT1 1 - Audio Out R (0.5Vrms <= 1kΩ) 2 - Audio In R (0.2-2Vrms >= 10kΩ) 3 - Audio Out L (0.5Vrms <= 1kΩ) 4 - Earth screen 5 - Earth screen 6 - Audio In L (0.2-2Vrms >= 10kΩ) 7-- 8 - CVBS status (INT = 0-2V, EXT(16:9) = 4.5-7V,

EXT(4:3) = 9.5-12V) 9 - Earth screen 10- -

H H

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Technical Specifications, connections and chassis overview

1.3 Chassis overview

GB 3L9.1E AB 1.

TOP CONTROL RF

SIDE AV PANEL + HEADPHONE

MAIN

CHASSIS

PANEL

TOP CONTROL FSQ

SMART ATS

CRT PANEL

POWER SUPPLY

HOR.DEFLECTION

VERT. DEFLECTION

SYNCHRONISATION

TUNER + VIDEO IF

VIDEO PROCESSING

CONTROL (µC)

FRONT CONTROL

NICAM + 2CS DECODER

SMART SOUND

AUDIO AMPLIFIER

HEADPHONE

I/O SCART

MAINS HARMONIC PANEL

CL 06532025_026.eps

A10

A11

A12

A13

A15

070600

Figure 1-2

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GB 4 L9.1E AB2.

Safety instructions, Warnings and Notes

2. Safety instructions, Warnings and Notes

2.1 Safety instructions for repairs

• Safety regulations require that during a repair:

– The set should be connected to the mains via an

isolating transformer;

– Safety components, indicated by the symbol h,

should be replaced by components identical to the original ones;

– When replacing the CRT, safety goggles must be

worn.

• Safety regulations require that after a repair the set must

be returned in its original condition. In particular attention should be paid to the following points. – General repair instruction: As a strict precaution, we

advise you to resolder the solder joints through which the horizontal deflection current is flowing, in particular a. All pins of the line output transformer (LOT); b. Fly-back capacitor(s); c. S-correction capacitor(s); d. Line output transistor; e. Pins of the connector with wires to the deflection

coil;

f. Other components through which the deflection

current flows. Note: This resoldering is advised to prevent bad connections due to metal fatigue in solder joints and is therefore only necessary for television sets older than 2 years.

– The wire trees and EHT cable should be routed

correctly and fixed with the mounted cable clamps.

– The insulation of the mains lead should be checked

for external damage.

– The mains lead strain relief should be checked for its

function in order to avoid touching the CRT, hot components or heat sinks.

– The electrical DC resistance between the mains plug

and the secondary side should be checked (only for sets which have a mains isolated power supply). This check can be done as follows:

1. Unplug the mains cord and connect a wire between the two pins of the mains plug;

2. Set the mains switch to the "on" position (keep the mains cord unplugged!);

3. Measure the resistance value between the pins of the mains plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be between 4.5 MΩ and 12 M

4. Switch off the TV and remove the wire between the two pins of the mains plug.

– The cabinet should be checked for defects to avoid

touching of any inner parts by the customer.

2.2 Maintenance instruction

It is recommended to have a maintenance inspection carried out by a qualified service employee. The interval depends on the usage conditions:

• When the set is used under normal circumstances, for example in a living room, the recommended interval is 3 to 5 years.

• When the set is used in circumstances with higher dust, grease or moisture levels, for example in a kitchen, the recommended interval is 1 year.

• The maintenance inspection contains the following actions: – Execute the above mentioned 'general repair

instruction'.

– Clean the power supply and deflection circuitry on

the chassis.

– Clean the picture tube panel and the neck of the

picture tube.

2.3 Warnings

• ESD

• Available ESD protection equipment:

• In order to prevent damage to ICs and transistors, all

Ω

All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mass of the set by a wristband with resistance. Keep components and tools also at this same potential.

– Complete kit ESD3 (small table mat, Wristband,

Connection box, Extension cable and Earth cable) 4822 310 10671

– Wristband tester 4822 344 13999

high-voltage flashovers must be avoided. In order to prevent damage to the picture tube, the method shown in Fig. 2-1 should be used to discharge the picture tube. Use a high-voltage probe and a multimeter (position DCV). Discharge until the meter reading is 0 V (after approx. 30 s).

CL 26532098/042

140792

Figure 2-1

• Together with the deflection unit and any multipole unit, the flat square picture tubes used, form an integrated unit. The deflection and the multipole units are set optimally at the factory. Adjustment of this unit during repair is therefore not recommended.

• Be careful during measurements in the high-voltage section and on the picture tube.

• Never replace modules or other components while the unit is switched on.

• When making settings, use plastic rather than metal tools. This will prevent any short circuits and the danger of a circuit becoming unstable.

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Safety instructions, Warnings and Notes

2.4 Notes

• The direct voltages and oscillograms should be measured with regard to the tuner earth (H), or hot earth (I) as this is called.

• The direct voltages and oscillograms shown in the diagrams are indicative and should be measured in the Service Default Mode (see chapter 5) with a colour bar signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated otherwise) and picture carrier at 475.25 MHz.

• Where necessary, the oscillograms and direct voltages are measured with (D) and without aerial signal (E). Voltages in the power supply section are measured both for normal operation (G) and in standby (F). These values are indicated by means of the appropriate symbols.

• The picture tube PWB has printed spark gaps. Each spark gap is connected between an electrode of the picture tube and the Aquadag coating.

• The semiconductors indicated in the circuit diagram and in the parts lists are completely interchangeable per position with the semiconductors in the unit, irrespective of the type indication on these semiconductors.

GB 5L9.1E AB 2.

Page 6

GB 6 L9.1E AB3.

3. Directions for use

Directions for use

Page 7

Directions for use

GB 7L9.1E AB 3.

Page 8

GB 8 L9.1E AB3.

Directions for use

Page 9

4. Mechanical instructions

4.1 Service positions

For the service position of the main carrier see figure 4.1A.

1. Disconnect the wire on the right-hand speaker and the degaussing cable.

2. The mono-carrier can be removed by pushing the two centre clips at both chassis brackets outwards and pulling the panel forward.

3. Flip the mono-carrier with the component side towards the CRT.

4. Slide the metal heatsink underneath the left chassis bracket till the carrier is fixed. See figure 4.1B.

Mechanical instructions

GB 9L9.1E AB 4.

Figure 4-1

CL 86532104_007.ai

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GB 10 L9.1E AB5.

Fault finding and repair tips

5. Fault finding and repair tips

In this chapter the following paragraphs are included:

5.1 Test points

5.2 Service Modes and Dealer Service Tool (DST)

5.3 Menus and submenus

5.4 Error code buffer and error codes

5.5 The “blinking LED” procedure

5.6 Trouble shooting tips

5.7 Customer service mode

5.8 Computer Aided Repair ( Compair )

5.9 Ordering ComPair

5.1 Test points

The L9 chassis is equipped with test points in the service printing. These test points are referring to the functional blocks:

• A1-A2-A3, etc.: Test points for the Nicam + 2CS decoder / Audio amplifier

• C1-C2-C3, etc.: Test points for the control circuit / front control

• F1-F2-F3, etc.: Test points for the vertical deflection circuit

• I1-I2-I3, etc.: Test points for the intermediate frequency circuit

• L1-L2-L3, etc.: Test points for the horizontal deflection circuit

• P1-P2-P3, etc.: Test points for the power supply

• S1-S2-S3, etc.: Test points for the synchronisation circuit

• V1-V2-V3, etc.: Test points for the video processing

circuit / CRT panel

Measurements are performed under the following conditions: Video: colour bar signal; audio: 3KHz left, 1KHz right

5.2 Service modes and Dealer Service Tool (DST)

For easy installation and diagnosis the dealer service tool (DST) RC7150 can be used. When there is no picture (to access the error code buffer via the OSD), DST can enable the functionality of displaying the contents of the entire error code buffer via the blinking LED procedure.

5.2.1 Installation features for the dealer

The dealer can use the RC7150 for programming the TV-set with presets. 10 Different program tables can be programmed into the DST via a GFL TV-set (downloading from the GFL to the DST; see GFL service manuals) or by the DST-I. For explanation of the installation features of the DST, the directions for use of the DST are recommended (For the L9 chassis, download code 4 should be used).

5.2.2 Diagnose features for the servicer

– By transmitting the "DEFAULT" command with the

RC7150 Dealer Service Tool (this works both while the set is in normal operation mode or in the SAM)

– Standard RC sequence 062596 followed by the key

“MENU”

– By shorting test-point M20 to ground on the mono-carrier

while switching on the set. After switching on the set the short-circuit can be removed. ( Caution!! Override of 5V

protections ). Exit the SDM: Switch the set to Standby or press EXIT on the DST (the error buffer is also cleared). Note: When the mains power is switched off while the set is in SDM, the set will switch to SDM immediately when the mains is switched on again. ( The error buffer will be cleared ). The SDM sets the following pre-defined conditions:

• Pal/Secam sets: tuning at 475.25 PAL (For France select

the L’-signal ) Volume level is set to 25% (of the maximum volume level). Other picture and sound settings are set to 50%. The following functions are “ignored” in SDM since they interfere with diagnosing/repairing a set. “Ignoring” means that the event that is triggered is not executed, the setting remains unchanged.

• (Sleep)Timer

• Blue mute

• Auto switch off

• Hotel or Hospitality Mode

• Child lock or Parental lock

• Skipping, blanking of “Not favourite” present/channels

• Automatic storing of Personal Preset settings

• Automatic user menu time-out

All other controls operate normally.

5.2.4 Special functions in SDM

Access to normal user menu

Pressing the “MENU” button on the remote control will enter the normal user menu ( TV lock, Installation, Brightness, colour and contrast ) while “SMD” remains displayed in top of screen). Pressing the “MENU” key again will return to the last SDM status.

Error buffer

Pressing the “OSD” button of the remote control shows all OSD (incl. error buffer).

Access to SAM

By pressing the “CHANNEL DOWN” and “VOLUME DOWN“ buttons on the local keyboard simultaneously the set switches from SDM to SAM or pressing “ALIGN” on the DST In the SDM the following information is displayed on the screen:

L9 sets can be put in two service modes via the RC7150. These are the Service Default Mode (SDM) and the Service Alignment Mode (SAM).

5.2.3 Service Default Mode (SDM)

The purpose of the SDM is: – provide a situation with predefined settings to get the

same measurements as in this manual

– override 5V protections in case of short circuiting pin 20

to ground.

– start the blinking LED procedure – Setting of options controls – Inspect the error buffer

Entering the SDM:

LLLL L90BBC X.Y SDM OP VALUE OB1 OB2 OB3 OB4 OB5 OB6 OB7

ERR xx xx xx xx xx

SDM

Figure 5-1

TV LOCK INSTALLATION BRIGHTNESS COLOUR CONTRAST

SDM

......

llllll

......

llllll

......

llllll

CL 86532104_015.eps

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Page 11

Fault finding and repair tips

Explanation notes/references: “LLLL” Operation hours timer (hexadecimal) (2) Software identification of the main micro controller (L90BBC X.Y)

• L90 is the chassis name for L9.0E

• BBC is 2 letter and 1 digit combination to indicate the

software type and the supported languages:

• X = (main version number)

• Y = (subversion number) BB = (range specification )

(3) “SDM” To indicate that the TV set is in de service mode (4) “OP” Options Code which exists of 2 characters. It is possible to change each option code “VALUE” The value of the selected option ( ON/OFF or a combination of 2 letters )

“XXX” Value of the options bytes ( OB1 .. OB7) “ERR” The last five detected errors; The left most number

indicates the most recent error detected. The MENU UP or MENU DOWN command can be used to select the next/previous option; The MENU LEFT and MENU RIGHT command can be used to change the option value. Remark: When the option-code RC = OFF, the P+ and the P- key have the same functions as the MENU UP/DOWN keys while the VOL+ and the VOL- key have the same function as the MENU LEFT/RIGHT keys. It is not possible to change the channel preset or to adjust the volume when in SAM/SDM menu when the option RC = OFF. Using a L9 remote control, option-code RC = ON, the P+, P, VOL- and VOL+ can be used to change the preset and/or to adapt the volume, while the menu-cursor keys are used to select the option and to change its value. For an extended overview of the option codes see Chapter 8

- Options

GB 11L9.1E AB 5.

5.2.5 Service Alignment Mode (SAM)

The purpose of the SAM is to do tuning adjustments, align the white tone, adjust the picture geometry and do sound adjustments. For recognition of the SAM, “SAM” is displayed at the top of the right side of the screen Entering SAM: – By transmitting the "ALIGN" command with the RC7150

Dealer Service Tool

– By pressing the “CHANNEL DOWN” and “VOLUME

DOWN” key on the local keyboard simultaneously when the set is in SDM

– Standard RC sequence 062596 followed by the key

“OSD”

Exit the SAM

Switch the set to standby or press EXIT on the DST (the error buffer is not cleared). Note: When the mains power is switched off while the set is in SAM, the set will switch to SAM immediately when the mains is switched on again. ( The error buffer will not be cleared ). In the SAM the following information is displayed on the screen:

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GB 12 L9.1E AB5.

Fault finding and repair tips

TV LOCK INSTALLATION BRIGHTNESS COLOUR CONTRAST

AKB VSD TUNER WHITE TONE GEOMETRY AUDIO

llllll llllll llllll

......

SAM

31 31 31

SAMAAABBC X.Y

L90 BBC X.Y

TUNER IF-PLL IF-PLL POS AFA AFB

L90 BBC X.Y

SAM

192

1 1

SAM

A-FM AT STEREO

L90 BBC X.Y SOUND

SAM

232

NORMAL RED

SAM

L90 BBC X.Y

VAM

CL 86532104_016.eps

030399

Figure 5-2

Page 13

Fault finding and repair tips

GB 13L9.1E AB 5.

5.2.6 Access to normal user menu

Pressing the “MENU” button on the remote control will enter the normal user menu ( TV lock, installation, brightness, colour and contrast ) while “SAM” remains displayed in top of screen. Pressing the “MENU” key again will return to the last SAM status. Pressing the “OSD” button of the remote control shows only “SAM” in the top of screen

5.2.7 Access to SDM

By pressing the “CHANNEL DOWN” and “VOLUME DOWN” control keys on the local keyboard simultaneously the set switches from SAM to SDM or by pressing the “DEFAULT” button on the DST

5.2.8 SAM menu control

Menu items (AKB, VSB, Tuner, White tone, Geometry and Sound) can be selected with the MENU Up or MENU DOWN key. Entry into the selected items (sub menus) is done by the MENU LEFT or MENU RIGHT key. The selected item will be highlighted. With the cursor LEFT/RIGHT keys, it is possible to increase/ decease the value of the selected item.

5.3 The menus and submenus

5.3.1 Tuner sub menu

The tuner sub menu contains the following items: – IF_PLL: PLL Alignment for all PAL/SECAM systems,

excluding SECAM-LL’

– IF_PLL POS: PLL Alignment for SECAM-LL’ – IF_PLL OFFSET: Default value = 48 ; Do not align – AFW: AFC Window – AGC: AGC take-over point – YD: Default value = 12 ; Do not align – CL: Default value = 4 ; Do not align – AFA – AFB

The items AFA and AFB can not be selected, they are for monitoring purposes only. The commands MENU UP and MENU DOWN are used to select the next/previous item. The commands MENU LEFT and MENU RIGHT are used to increase/decrease the value of the selected item. The changed values will be send directly to the related hardware. The item values are stored in NVM if this sub menu is left.

5.3.2 White tone sub menu

The white tone sub menu contains the following items:

– NORMAL RED – NORMAL GREEN – NORMAL BLUE – DELTA COOL RED – DELTA COOL BLUE – DELTA COOL GREEN – DELTA WARM RED – DELTA WARM BLUE – DELTA WARM GREEN

OSD is kept to a minimum in this menu, in order to make white tone alignment possible. The commands MENU UP and MENU DOWN are used to select the next/previous item. The commands MENU LEFT and MENU RIGHT are used to increase/decrease the value of the selected item. The changed values will be send directly to the related hardware. The item values are stored in NVM if this sub menu is left.

The Contrast Plus feature (black stretch) is set to OFF when the white tone submenu is entered.

5.3.3 Audio sub menu

The tuner sub menu contains the following items:

– AF-M: Default value = 232 ; Do not align – AT: Default value = 4 ; Do not align – STEREO: Default value = 15 ; Do not align – DUAL: Default value = 12 ; Do not align

The sound adjustments sub menu are not available in Mono sets. The presence of an item in the menu strongly depends on the selected soundboard (option SB). The commands MENU UP and MENU DOWN are used to select the next/previous item. The commands MENU LEFT and MENU RIGHT are used to increase/decrease the value of the selected item. The changed values will be send directly to the related hardware. The item values are stored in NVM if this sub menu is left.

5.3.4 Geometry sub menu

The geometry sub menu contains the following items:

– SBL : Service blanking – VSL : Vertical slope – VAM : Vertical amplitude – VSH : Vertical shift – HSH : Horizontal shift – VSC : Vertical S correction – H60 : Default value = 10 ; Do not align – V60 : Default value = 12 ; Do not align – EWC : E-W corner – EWT : E-W trapezium – EWP : E-W parabola – EWW : E-W width

5.4 Error code buffer and error codes

5.4.1 Error code buffer

The error code buffer contains all errors detected since the last time the buffer was erased. The buffer is written from left to right. – when an error occurs that is not yet in the error code

buffer, the error is written at the left side and all other errors shift one position to the right

– the error code buffer will be cleared in the following

cases:

1. exiting SDM or SAM with the “Standby" command on the remote control

2. transmitting the commands “EXIT” with the DST (RC7150)

3. transmitting the commands “DIAGNOSE-9-9-OK” with the DST.

By leaving SDM or SAM with the mains switch, the error buffer is not reset.

Examples: ERROR: 0 0 0 0 0 : No errors detected ERROR: 6 0 0 0 0 : Error code 6 is the last and only detected error ERROR: 5 6 0 0 0 : Error code 6 was first detected and error code 5 is the last detected (newest) error

5.4.2 Error codes

In case of non-intermittent faults, clear the error buffer before starting the repair to prevent that “old” error codes are present. If possible check the entire content of the error buffers. In some situations an error code is only the RESULT of another error code (and not the actual cause).

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GB 14 L9.1E AB5.

Fault finding and repair tips

Note: a fault in the protection detection circuitry can also lead to a protection. Error 0 = No error Error 1 = X-ray ( Only for USA sets ) Error 2 = High beam current protection and E/W Horizontal protection High beam protection active; set is switched to protection; error code 2 is placed in the error buffer; the LED will blink 2 times ( repeatedly ). As the name implies, the cause of this protection is a too high beam current (bright screen with flyback lines). Check whether the +200V supply to the CRT panel is present. If the voltage is present, the most likely cause is the CRT panel or the picture tube. Disconnect the CRT panel to determine the cause. If the +200V voltage is not present, check R3340 ( CRT panel - B ), R3485 and D6485 ( Horizontal Deflection A2 ) EW protection: If this protection is active, the causes could be one of the following;

– horizontal deflection coil 5445 – linearity coil 5457 – S-correction capacitor 2466/2468 – flyback capacitor 2465 – line output stage – short circuit of: – flyback diode 6460 – EW transformer (bridge coil) 5465/5470 or 5463/5471

(version dependent)

– S-correction capacitor 2457 – EW power-transistor 7460 or driver-transistor 7461

Error 3 = Vertical / Frame protection There are no pulses detected at pin 47 of the main microprocessor 7600 ( panel A7 ). If this protection is active, the causes could be one of the following items;

– IC 7401 is faulty – Open circuit of vertical deflection coil – Vlotaux +11V not present and/or Vlotaux -11V not

present

– Resistor 3409

Error 4 = Sound processor I

C error ( MSP3415D ) Sound processor does not respond to the micro controller Error 5 = Bimos start-up error ( POR bit ) Bimos start-up register is corrupted or the I

C line to the Bimos is always low or no supply at pin 12 of the Bimos). This error is usually detected during start-up and hence will prevent the set from starting up. Error 6 = Bimos (TDA8844) I

C error Note that this error may also be reported as a result of error codes 4 (in that case the Bimos might not be the actual problem) Error 7 = General I

C error. This will occur in the following

cases:

• SCL or SDA is shorted to ground

• SCL is shorted to SDA

• SDA or SCL connection at the micro controller is open

circuit.

Error 8 = Microprocessor internal RAM error The micro controller internal RAM test indicated an error of the micro controller internal memory (tested during start-up); Error 9 = EEPROM Configuration error ( Checksum error ); EEPROM is corrupted. Error 10 = I does not respond to the micro controller Error 11 = I

C error EEPROM error. NV memory (EEPROM)

C error PLL tuner. Tuner is corrupted or the I2C line to the Tuner is low or no supply voltage present at pin 9, pin 6 or pin 7 of the tuner. Error 12 = Black current loop instability protection. The black current could not be stabilised. The possible cause could be a defect in one or more of the RGB amplifiers, RGB guns or RGB driving signals.

5.5 The “blinking LED” procedure

The contents of the error buffer can also be made visible through the “blinking LED” procedure. This is especially useful when there is no picture. There are two methods:

1. When the SDM is entered, the LED will blink the number of times, equal to the value of the last (newest) error code (repeatedly).

2. With the DST all error codes in the error buffer can be made visible. Transmit the command: “DIAGNOSE x OK” where x is the position in the error buffer to be made visible x ranges from 1, (the last (actual) error) to 6 (the first error). The LED will operate in the same way as in point 1, but now for the error code on position x.

Example: Error code position1 2 3 4 5 Error buffer:8 9 5 0 0

• after entering SDM: blink (8x) - pause - blink (8x) - etc.

• after transmitting “DIAGNOSE- 2- OK” with the DST blink

(9x) - pause - blink (9x) - etc.

• after transmitting “DIAGNOSE- 3- OK” with the DST blink(5x) - pause - blink(5x) - etc.

• after transmitting “DIAGNOSE- 4- OK” with the DST nothing happens

5.6 TROUBLE SHOOTING TIPS

In this paragraph some trouble shooting tips for the deflection and power supply circuitry are described. For detailed diagnostics, check the fault finding tree or use COMPAIR.

5.6.1 THE DEFLECTION CIRCUIT:

1. Measure the +VBATT ( 140V) is present across 2551 ( A1 POWER SUPPLY ). If the voltage is not present, disconnect coil 5551 ( A1 Power Supply) (Horizontal deflection stage is disconnected). If the voltage is present then the problem might be caused by the deflection circuit. Possibilities:

– Transistor 7460 is faulty – The driver circuit around transistor 7461 is faulty – No horizontal drive signal coming from the BIMOS

7250-D pin 40 ( A4 - Synchronisation )

1. Note: If the Collector of 7460 is shorted to the Emitter, hick-up noise can be heard from the power supply circuit.

1. To determine whether the fault is present in the horizontal deflection circuit or in the E/W circuit ( A2 Horizontal Deflection ), de-solder jumper 9465 and insert jumper into position number 9461. In this case the E/W protection is disabled. If the basic deflection is correctly working ( a parabolic picture ) then the fault is present in the E/W circuit. If there is no horizontal deflection, the fault is present in the basic deflection circuitry.

The 25V-version ( 26” tube ) and the 27V-version (29” tube) do not have an E/W correction circuit.

1. Also take note of protection circuits in the line output stage. If any of these circuits are activated, the set will shut down. Depending on the protection, the led will blink according to the fault defined. In order to determine which protection circuit is active, isolation of each separate circuit is necessary. These protection circuits are: – High beam current protection ( LED blinks

repetitively 2 times ) - CRT panel ( B )

– E/W Horizontal protection ( LED blinks repetitively 2

times ) - Horizontal deflection ( A2 )

Page 15

– Vertical protection ( LED blinks repetitively 3 times )

1 HHHH L90BBC-X.Y CSM 2 CODES xx xx xx xx xx 3 OP xxx xxx xxx xxx xxx xxx xxx 4 SYS: xxxxxxxxxxx 5 NOT TUNED 6 TIMER 7 LOCKED 8 (HOSPITAL) (HOTEL) 9 VOL LIM <value>

CL 86532104_014.eps

080299

- Vertical deflection ( A3 )

5.6.2 THE POWER SUPPLY

To trouble shoot the L9 SMPS, first check the Vaux voltage on C2561. If this voltage is not present, check fuse F1572 and D6560. If F1572 or D6560 is not open circuit, the problem might be caused on the primary side of the switching supply. Check the output of the bridge rectifier on the C2508 for approximately 300V DC. If this voltage is missing, check the bridge rectifier 6505 and the fuse 1500. If fuse F1500 is found open, check MOSFET 7518 to make sure that there is no short circuit present and check R3518. If the 300V DC is present on C2508, check for a start-up voltage of approx. 13V on pin 1 of IC7520. If no start-up voltage is present, check if R3510 is open; zener 6510 is a short-circuit. It is necessary to have a feedback signal from the hot primary side of switch mode transformer T5545 at pin 8 and pin 9 for the power supply to oscillate. If this start-up voltage is present on pin 1 of IC7520 and the supply is not oscillating, check R3529 and D6540. Check for a drive signal at the gate of MOSFET 7518, square wave signal - P2. Check pin 3 of IC7520, R3525 and D6514 To determined whether OVP is active, check whether Vaux is present at C2561.

5.7 Customer Service Mode (CSM)

All L9.1 sets are equipped with the “Customer Service Mode” (CSM). CSM is a special service mode that can be activated and deactivated by the customer, upon request of the service technician/dealer during a telephone conversation in order to identify the status of the set. This CSM is a 'read only' mode, therefore modifications in this mode are not possible. Entering the Customer Service Mode. The Customer Service Mode can be switched on by pressing simultaneously the button (MUTE) on the remote control and any key on the control buttons (P+, P-, VOL +, VOL -) on the TV for at least 4 seconds. When the CSM is activated:

• picture and sound settings are set to nominal levels

•“Service unfriendly modes” are ignored

Exit the Customer Service Mode. The Customer Service Mode will switch off after:

– pressing any key on the remote control handset (except

“P+” or “P-”)

– switching off the TV set with the mains switch.

All settings that were changed at activation of CSM are set back to the initial values

5.7.1 The Customer Service Mode information screen

The following information is displayed on screen: Text “CSM” on the first line

• Line number for every line (to make CSM language independent)

• Operating hours

• Software version L90BBC X.Y)

• Text “CSM” on the first line

• Error buffer contents

• Option code information

• Configuration information

• Service unfriendly modes

Fault finding and repair tips

SYS: xxxxxx = xxxxxx is the SYSTEM THAT IS SET FOR THIS PRESET NOT TUNED = no ident signal present TIMER = (SLEEP) TIMER is actived LOCKED = Channel/preset locked via parental lock, child lock HOTEL = HOTEL mode activated; HOSPITAL = HOSPITAL mode activated VOL LIM = Volume limiter activated and set to

5.7.2 Exit

Any key (RC or local keyboard) except “channel up” / “channel down” (standby switched to standby, mains OFF

switches set off, other keys switch to normal operation)

5.8 Compair

5.8.1 Introduction

Compair (Computer Aided Repair) is a service tool for Philips Consumer Electronics products. Compair is a further development on the DST service remote control allowing faster and more accurate diagnostics. Compair has three big advantages:

• Compair helps you to quickly get an understanding how to repair the L9.1E in short time by guiding you step by step through the repair procedures.

• Compair allows very detailed diagnostics (on I and is therefore capable of accurately indicating problem areas. You do not have to know anything about I commands yourself; Compair takes care of this.

• Compair speeds up the repair time since it can automatically communicate with the L9.1E (when the micro processor is working) and all repair information is directly available. When Compair is installed together with the SearchMan L9.1E electronic manual, schematics and PCBs are only a mouse-click away.

Compair consists of a Windows based fault finding program and an interface box between PC and the (defective) product. The Compair interface box is connected to the PC via a serial or RS232 cable. In case of the L9.1E chassis, the Compair interface box and the L9 communicate via an I cable (bi-directional) and via infra red communication (unidirectional; from Compair interface box to L9.1E) The Compair fault finding program is able to determine the problem of the defective television. Compair can gather diagnostic information in 2 ways:

1. Communication to the television (automatic)

2. Asking questions to you (manually)

Figure 5-3

GB 15L9.1E AB 5.

C level)

Page 16

GB 16 L9.1E AB5.

Fault finding and repair tips

Compair combines this information with the repair information in its database to find out how to repair the L9.xE.

5.8.2 Automatic information gathering

Reading out the error buffer, Compair can automatically read out the contents of the entire error buffer. Diagnosis on I

C level. Compair can access the I2C bus of the television. Compair can send and receive I to the micro controller of the television. In this way it is possible for Compair to communicate (read and write) to devices on the I

C busses of the L9.xE.

5.8.3 Manual information gathering

Automatic diagnosis is only possible if the micro controller of the television is working correctly and only to a certain extend. When this is not the case, Compair will guide you through the fault finding tree by asking you questions and showing you examples. You can answer by clicking on a link (e.g. text or an waveform pictures) that will bring you to the next step in the faultfinding process. A question could be: Do you see snow? (Click on the correct answer) YES / NO An example can be: Measure testpoint I7 and click on the correct oscillogram you see on the oscilloscope

I7 B7502

C commands

4. Switch the Compair interface OFF

5. Switch the television set OFF with the mains switch

6. Remove the rear cover of the television set

7. Connect the interface cable (4822 727 21641) to the connector on the rear side of the Compair interface that is marked “I

C” (See Figure 5-5)

8. Connect the other end of the interface cable to the Compair connector on the monocarrier (see figure 5-6)

9. Plug the mains adapter in the mains outlet and switch ON the interface. The green and red LEDs light up together. The red LED extinguishes after approx. 1 second (the green LED remains lit).

10. Start-up Compair and select “File” menu, “Open...:; select “L9.1 Fault finding” and click “OK”

11. Click on the icon to switch ON the communication mode (the red LED on the Compair interface wil light up)

12. Switch on the television set with the mains switch

13. When the set is in standby. Click on “Start-up in Compair mode from standby” in the Compair L9.x fault finding tree, otherwise continue.

PC VCR I2CPower

9V DC

86532027_003.EPS

050898

1V / div DC

10µs / div

Figure 5-4

By a combination of automatic diagnostics and an interactive question/answer procedure, Compair will enable you to find most problems in a fast and effective way.

5.8.4 Additional features

Beside fault finding, Compair provides some additional features like:

• Uploading/downloading of presets

• Managing of preset lists

• Emulation of the Dealer Service Tool

5.8.5 Connecting the Compair interface

The Compair Browser software should be installed and setup before connecting Compair to the L9.xE. (See the Compair Browser Quick Reference Card for installation instructions.)

1. Connect the RS232 interface cable to a free serial (COMM) port on the PC and the Compair interface PC connector (connector marked with "PC").

2. Place the Compair interface box straight in front of the television with the infrared window (marked "IR") directed to the television LED. The distance between Compair interface and television should be between 0.3 and 0.6 meter. (Note: make sure that (also) in the service position, the Compair interface infra red window is pointed to the standby LED of the television set (no objects should block the infra red beam)

3. Connect the mains adapter to the connector marked "POWER 9V DC" on the Compair interface

Figure 5-5

The set has now started up in Compair mode. Follow the instruction in the L9.1 fault finding tree to diagnose the set. Note that the OSD works but that the actual user control is disabled

COMPAIR

0267

TUNER

CL 96532017_001.EPS

190299

Figure 5-6

Page 17

5.8.6 Preset installation

Presets can be installed in 2 ways with the L9.1E.

• Via infra red

• only sending TO the television

• the rearcover does NOT have to be removed

Click on “File” “Open” and select “TV - use Compair as DST” to use infra red

• Via cable

• sending TO the television and reading FROM the

television

• the rearcover has to be removed

Click on “File” “Open” and select “L9.1 fault finding” to use the cable Presets can be installed via menu “Tools”, “Installation”, “Presets”.

5.8.7 Ordering Compair

Compair order codes:

• Starterkit Compair+SearchMan software + Compair interface (excluding transformer): 4822 727 21629

• Compair interface (excluding transformer): 4822 727 21631

• Compair transformer (continental) Europe: 4822 727 21632

• Compair transformer United Kingdom: 4822 727 21633

• Starterkit Compair software: 4822 727 21634

• Starterkit SearchMan software: 4822 727 21635

• Starterkit Compair+SearchMan software: 4822 727

21636

• Compair CD (update): 4822 727 21637

• SearchMan CD (update): 4822 727 21638

• Compair interface cable (for L9): 4822 727 21641

Fault finding and repair tips

GB 17L9.1E AB 5.

Page 18

GB 18 L9.1E AB5.

Personal notes:

Fault finding and repair tips

Page 19

8. Alignments

Alignments

GB 43L9.1E AB 8.

General: the Service Default Mode (SDM) and Service Alignment Mode (SAM) are described in chapter 5.

8.1 Alignment conditions

All electrical adjustments should be performed under the following conditions:

• Supply voltage : 220V - 240V ( 10% )

• Warm-up time: 10 minutes

• The voltages and oscillograms are measured in relation

to the tuner earth.

• Test probe: Ri > 10MΩ Ci < 2,5 pF.

8.1.1 Selection of the SDM-menu

– By transmitting the "DEFAULT" command with the

RC7150 Dealer Service Tool (this works both while the set is in normal operation mode or in the SAM)

– Standard RC sequence 062596 ( within OSD time-out )

– By shorting test-point M20 to ground on the mono-carrier

while switching on the set. After switching on the set the short-circuit can be removed. ( Caution!! Override of 5V protections ).

8.1.2 Selection of the SAM-menu

– By transmitting the "ALIGN" command with the RC7150

Dealer Service Tool

– By pressing the “CHANNEL DOWN” and “VOLUME

DOWN” key on the local keyboard simultaneously when the set is in SDM

– Standard RC sequence 062596 ( within OSD time-out )

OSD

8.2 Electrical Alignments

8.2.1 VG2

• Use a pattern generator to display a normal black picture.

• Program the pattern generator with a frequency of

475.25 MHz for PAL/SECAM and select L’ for France

• Switch on the TV set.

• Select the SDM-MENU. The tuner is set to a frequency

of 475.25 MHz.

• Select the” SAM-MENU”. This can be done by pressing the “ALIGN” key on the DST or typing the RC sequence

“0-6-2-5-9-6” and finishing with the “OSD” key. Press the “MENU” key on the RC to leave the SAM-MENU and go

to the normal user menu ( “SAM” remains displayed at the top of the screen). Select with the MENU UP/DOWN command the sub-menu BRIGHTNESS. Change the default value from 31 to 50 with the MENU LEFT/RIGHT keys. Select the CONTRAST sub-menu and change the value from 31 to 0.

• Leave the normal user menu to return to the SAMMENU, by pressing the MENU key on the RC.

• Select sub-menu VSB and change the value from 0 to 1 by pressing the MENU LEFT key. CAUTION!! Depending on the position of the VG2 potentio-meter, the screen will turn completely black because the Vertical Scan has been disabled.

• Adjust with VG2 potentiometer (positioned at LOT 5445) the blue line at the middle of the screen till this line is just not visible.

• The alignment of the VG2 has been completed; Switch the set to Standby. The values adapted at the BRIGHTNESS- and the CONTRAST-menu during the alignment, will change back again to their default values.

8.2.2 Focusing

Set pattern generator (e.g. PM5418) with Circle and Small Squares pattern and connect to aerial input with RF signal amplitude - 10mv. Adjusted with focusing potentiometer (positioned at LOT 5445 ) for maximum sharpness of the picture.

8.3 SOFTWARE ADJUSTMENT

8.3.1 Geometry adjustments

• Set pattern generator (e.g. PM5418) with Circle and Small Squares pattern on 475.25 MHz for PAL/SECAM and connect to aerial input with RF signal amplitude 10mV, France select L’-signal.

• First enter the SDM mode to set the tuner at 475.25 MHz.

• Enter the SAM mode and then select GEOMETRY with

the up/down keys buttons on the RC the respective items can be selected. Use the left/right buttons to adjust the selected items to correct the picture geometry as stated below.

Vertical Amplitude and Position

• Select Vertical Slope “VSL” and shift the test pattern to the top. The text VSL and its value should be above the upper half of the screen

• Select Service Blanking “SBL” and set it to 1. The lower half of the picture will be blanked.

• Press the up button once to select Vertical Slope “VSL”. Now align “VSL” to start the blanking exactly at the horizontal white line at the centre of the test circle. “VSL” has the correct value now and should not be changed anymore.

• Press the down button once to select “SBL” and set it back to 0. The full picture reappears.

• Now select Vertical Amplitude “VAM” and align the picture height to the top of the screen, so that the top horizontal line just disappears. This corresponds with an over scan of approx. 6%.

• Select Vertical Shift “VSH” and align for vertical centring of the picture on the screen.

• Repeat the last two steps if necessary.

Select Vertical S-correction “VSC” to align the top/bottom squares till they have the same size as the squares in the middle of the screen.

Horizontal Amplitude and Phase

• Select Horizontal Shift “HSH” to horizontally centre the picture on the screen

For sets with E/W correction follow the instructions below:

• Select East-West Width “EWW” and align the picture with a substantial over scan.

• Select East-West Trapezium “EWT” and align for a rectangle if necessary

• Select East-West Parabola “EWP” and align for straight vertical lines.

• Select East-West Corner “EWC” and align the corners.

• Repeat if necessary.

• Option code “H60” and “V60” do not need any alignment.

Default value H60 and V60 = 10.

To go back to the main SAM-menu , press the MENU key on the RC. To leave the SAM-menu and store the alignments in the NVN, press the STANDBY-key on the RC.

8.3.2 AGC

Set pattern generator (e.g. PM5418) with colour bar pattern and connect to aerial input with RF signal amplitude - 10mV

Page 20

GB 44 L9.1E AB8.

Alignments

and set frequency for PAL/SECAM to 475.25 MHz. For France select the L’-signal.

• Select the” SAM-MENU”. This can be done by pressing the “ALIGN” key on the DST or typing the RC sequence

“0-6-2-5-9-6” and finishing with the “OSD” key.

• Select at the TUNER sub-menu the option AFW and

select the value of 80kHz.

• Select the AGC subsub-menu

• Connect a DC multi-meter at pin 1 of the tuner IC 1000.

• Adjusting the AGC until the voltage at pin 1 of the tuner

is 1.0V +/- 0.1V.

• The value can be incremented or decremented by pressing the right/left MENU-button on the RC.

• Switch the set to standby.

8.3.3 IF-PLL / IF-PLL POS

Set pattern generator (e.g. PM5418) with colour bar pattern and connect to aerial input with RF signal amplitude - 10mV and set frequency for PAL/SECAM to 475.25 MHz.

• Select the ” SAM-MENU”.

• Select at the TUNER sub-menu the option AFW and

select the value of 80kHz.

Within the TUNER-menu we now have two options : IF-PLL and IF-PLL POS. The IF-PLL option is used for all PAL/SECAM signal excluding SECAM L’, The IF-PLL POS option is used for only the SECAM L’ signal For the IF-PLL option the following should be done:

• Select at the TUNER menu the IF-PLL subsubmenu

• Adjust the IF-PLL value until the AFA becomes “1” and AFB alternates between “0” and “1”

• Switch the set to Standby or go to the IF-PLL POS menu.

For the IF-PLL POS option the following should be done:

• Change the signal at the pattern generator from PAL to SECAM and select the L’-signal.

• Select at the TUNER menu the IF-PLL POS subsubmenu.

• Adjust the IF-PLL POS value until the AFA becomes “1” and AFB alternates between “0” and “1”

• Switch the set to Standby or go to the IF-PLL menu.

8.3.6 Audio

NO ADJUSTMENTS NEEDED FOR SOUND. The default values for the audio alignments as displayed in the table below:

AUDIO Alignment Options

A-FM 232 AT 4 STEREO 15 DUAL 15

8.4 Options

Options are used to control the presence / absence of certain features and hardware. There are two ways to change the option settings. The various option configurations and the descriptions of the two character-codes are explained below. Changing a single option: A single option can be selected with the MENU UP/DOWN keys and its setting can be changed with the MENU LEFT/RIGHT keys. Changing multiple options by changing option byte values: Option bytes make it possible to set very fast all options. An option byte represents a number of different options. All options of the L9 are controlled via 7 option bytes. Select the option byte (OB1, OB2, OB3, OB4, OB5, OB6 or OB7) and key in the new value. Changes in the options and option bytes settings are saved when the set is switched to standby. Some changes will only take affect after the set has been switched OFF and ON with the mains switch (cold start). The following options in SDM can be identified:

8.3.4 Tuner options CL, YD and IF-PLL OFFSET

NO ADJUSTMENTS NEEDED FOR THESE ALIGNMENTS. The tuner option code IF-PLL-OFFSET is only used in combination with sets with the TDA8845 BiMOS (IC7250). (Typically this is for Secam LL’). The default values for these option codes are:

• CL : 4

• YD : 12

• IF-PLL-OFFSET : 48

8.3.5 White tone

• Connect a pattern generator (e.g. PM5418) and set it to colour bar and circle pattern.

• Set frequency for PAL 475.25MHz with RF signal amplitude - 10mv and connect to tuner (aerial) input

• Enter the SAM -MENU.

• Enter into WHITE TONE menu, select item NORMAL,

DELTAWARM, or DELTACOOL depending on the item which has to be aligned. Only one of the three items (R, G or B) will be displayed on the screen.

The default values for the colour temperature as displayed in the table below:

10500KR = 40G = 40B =

NORMAL

(DELTA)COOL 14000KR = -2G = 0 B = 6

(DELTA)WARM 8200K R = 2G = 0 B = -

Page 21

Alignments

OP OPTION (ON=enabled / present) Explanation / Remark

AC Alternate Channel Alternate channel function (SWAP between last presets) enabled AM Animated menu 2X External 2 AO Audio out Default value is OFF AS Auto startup/Micro controller startup Default value is ON (ON = start-up via micro controller, OFF = auto

AT Automatic Tuning System (ATS) BM Blue Mute (ON = enabled) Enabled: blue mute background in case of no video ident /poor signal

BS BiMOS standby mode Default value = ON BT Bass/Treble Control Menu controls for BASS and TREBLE available when enabled C8 Maximum Program ( ON = 80 programmes ) C8 is OFF : Maximum of 100 programs CD Auto Cable Detect Default value = OFF (Not applicable for European sets) CI Automatic Channel Installation (ACI) CK Clock (Volatile) Clock function available when enabled CL Child Lock Menu item Child lock/Parental control when enabled CP Contrast Plus Menu item Contrast Plus available when enabled CT Colour Temperature Menu item Colour Temperature available when enabled CX 16:9 Compress Menu item 16:9 compress when enabled DM Demo Mode Demonstration of TV functions on screen when enabled DP Slider Bar Value Display Slider bar value displayed when enabled DU Dual I/II Possibility of language selection when enabled DV Delta Volume (Delta) Volume is stored separately for channel 0..40 and external

EW East-West Control East-West Alignment in SAM GEOMETRY menu available when

EX 4:3 Expand 4:3 expand mode available when enabled FV Favourite page Favourite TXT-page feature present when enabled FQ Frequency display Frequency displayed when enabled GM Games Mode Optimisation of setting for games possible when enabled HS Hospital Mode Possibility to block the local keyboard when enabled HT Hotel Mode Possibility to pre-select the channel numbers when enabled IS Incredible Surround Incredible surround function available when enabled LV Automatic Volume Leveller (AVL) Menu item AVL available when enabled NI No Ident Auto Standby Set switches to standby after 10min. when NI enabled NR Noise Reduction Menu item Noise Reduction available when enabled RC

(*)

SB Sound Board (Set the sound hardware

SP Smart Picture Smart picture command is processed when enabled SS Smart Sound Smart sound command is processed when enabled ST Sound systems supported SS = BG, I, DK, M

SY Systems supported SS

TN Tuner (OFF: Philips tuner; ON: Alps tuner) Default value = OFF

Separate preset/volume control on remote control (ON = separate control (A8 RC); OFF = combined control (L7 RC))

configuration)

start-up BiMOS)

conditions

sources when enabled; OFF = not available

enabled

See note below table. Default value is OFF

MA = Mono ALL

ND = Stereo/2CS/Nicam IT = German 2CS

AD = BG/I, BG/DK, I/DK

SP = Single system with NTSC Playback AD = Dual Mono ED = Europe Tri Mono EF = Europe Full Multi EL = Europe Full Multi with LL’

GB 45L9.1E AB 8.

Page 22

GB 46 L9.1E AB8.

OP OPTION (ON=enabled / present) Explanation / Remark

TW Channel Select Time Window (OFF: 2 seconds;

ON: 5 seconds) UB Ultra Bass Ultra bass function available when enabled VI Virgin Mode OSD at very first installation when enabled VL Volume Limiter Menu item Volume Limiter available when enabled VM Video Mute Screen blanking during channel switching when enabled WE Europe West (ON: Western Europe; OFF: other) XS External Source Colour Select External source colour selection available when enabled XT External 1 External 1 source input available when enabled

OB1 Option Byte 1 See option bits OB2 Option Byte 2 See option bits OB3 Option Byte 3 See option bits OB4 Option Byte 4 See option bits OB5 Option Byte 5 See option bits OB6 Option Byte 6 See option bits OB7 Option Byte 7 See option bits

(*) Remark: When option RC = OFF, the P+ and the P- key on the remote control have the same functions as the MENU UP/DOWN keys while the VOL+ and the VOL- key have the same function as the MENU LEFT/RIGHT keys. When RC=OFF, it is not possible to change the channel preset or to adjust the volume in SAM/SDM with the remote control. RC = OFF for use with L7-based remote control (only cursor keys). RC = ON for use with A8-based remote control (cursor keys, P+/P- and Volume+/Volume-).

Alignments

Time interval for entering a second digit for channel selection

8.5 Option bits/bytes

Option bytes OB1 bits 8, 7, ..., 1: DP, FQ, AM, HS, HT, DM, GM, VI OB2 bits 8, 7, ..., 1: CK, CL, AT, CI, (res), (res), SS, SP OB3 bits 8, 7, ..., 1: RC, WE, (res), (res), TW, AC, C8, VM OB4 bits 8, 7, ..., 1: TN, FV,XT,2X, XS, CD, BM, NI OB5 bits 8, 7, ..., 1: EX, CX, NR, CP, CT, EW, BS, AS OB6 bits 8, 7, ..., 1: BT, IS, VL, DV, UB, LV, DU, AO OB7 bits 8, 7, ..., 1: ST, ST, SB, SB, SB, SY, SY, SY An option byte value is calculated in the following way: value “option bit 1” x 1 = value “option bit 2” x 2 = value “option bit 3” x 4 = value “option bit 4” x 8 = value “option bit 5” x 16 = value “option bit 6” x 32 = value “option bit 7” x 64 = value “option bit 8” x 128 = Total : value “option byte” =

Page 23

Circuit description new circuits

9. Circuit description new circuits

GB 47L9.1E AB 9.

Power supply (diagram A1)

9.1 Introduction

9.1.1 General

The switch mode power supply (SMPS) is mains isolated. The control IC7520 (MC44603A) produces pulses for driving FET 7518. Power supply regulation is achieved by using duty cycle control at a fixed frequency of nominal 40 kHz in normal operation. In stand-by, slow-start and overload situations the SMPS runs at frequencies other than 40 kHz. Basic characteristics of this SMPS :

– Mains Isolated flyback Converter type – Input range : 90 - 276 Volts AC – Secondary Sensing by Opto-coupler – IC7520 is Featured with Slow-Start circuitry – Protection Circuits – Degaussing circuit

9.1.2 Output voltages

• Audio Supply ( +16.5V ) for the AUDIO AMPLIFIER ( Diagram A12 )

• Mains Supply ( +140V ) for the HORIZONTAL DEFLECTION stage (A2) and the CRT discharge circuit (A3)

• Vaux ( +11.3V ) for the Video IF (A5), Video processing (A6) and Control circuit (A7)

9.1.3 The switching periods of TS7518

The power supply duty cycle is dependent on the T-on of FET

7518. The FET is driven by pin 3 of IC7520. This IC controls

the secondary voltage (VBATT via opto-coupler 7581 and regulator 7570. The switching period of TS7518 can be divided into three main phases: Duty cycle T-on, T-off and Tdead.

• During T-on, FET 7518 conducts.

• Energy is stored in the primary winding (2-5) of

transformer T5545 by using a linear increasing primary current. The slope depends on the rectified mainsvoltage present across C2508. The T-on period is varied to provide regulation of the drive waveform at pin 3 of IC7520. By controlling the duty cycle of the SMPS in this way the (VBATT is controlled.

• During T-off, FET 7518 is switched off and therefore does not conduct. The energy is now transferred to the secondary side of the transformer and then supplied to the load via the secondary diodes (D6550, D6560 and D6570,D6590). The current through the secondary side of the transformer decreases until it reaches zero.

• During T-dead FET 7518 does not conduct .The voltage at the drain of the FET decays and eventually reaches the input voltage of approximately 300V.

9.2 Primary side

9.2.1 Mains input and degaussing

high current involved and becomes high-ohmic which reduces the degaussing-current. During normal operation, the degaussing current is zero, because relay 1580 is open due to the absence of the (P - Reset signal.

9.2.2 Start up and take over

– Start-up : The start-up circuitry consisting of 3510, 3530

and 3529 use the voltage coming from the 230V AC mains to start-up IC7520 via the supply pin 1. The output drive waveform (pin 3) is blocked by using the ICs internal logic until the voltage on pin 1 reaches 14.5 Volts however with less than 14.5 volts on Pin 1 the IC only consumes 0.3mA. Once pin 1 reaches the 14.5 Volts threshold, IC7520 will start up (FET 7518 will conduct) and pin 1 sinks a typical supply current of about 17 mA. This supply current cannot be delivered by the start-up circuitry, so a take-over circuit must be present. If takeover does not occur then the voltage on pin 1 will decrease below 9V and IC7520 will switch off. The supply begins a new Start-up cycle, see top of this paragraph. This cycle will repeat itself and can be noticed by an audible hick-up sounding noise.

– Take for IC7520: During start-up a voltage across

winding 8 - 9 is gradually built up. At the moment the voltage across winding 8 - 9 reaches approx. (14.5 Volts, D6540 start conducting and takes over the supply voltage Vpin 1 of IC7520 (take over current is approx.

17mA). Note: This power supply is a SMPS (= Switched Mode Power Supply) and not a SOPS (= Self Oscillating Power Supply).

9.3 Control circuitry

9.3.1 IC7520 control mechanisms

IC7520 controls the T-on time of FET 7518 in four different ways:

•“Secondary-output-sensing” controls the secondary

output voltages via the feedback voltage pin 14

•“Primary current sensing” control due to the mains

voltage via the current sense voltage pin 7

•“Demagnetization control” prevents the transformer

T5545 from going into saturation via the so-called

“DEMAG” function at pin 8

• Mains voltage control via R3514 and R3516

9.3.2 Secondary voltage sensing (pin 14 of IC7520)

When the output voltage +VBATT increases (due to a reduction in the load ) the current through the led in the optocoupler 7581 will increase due to the fact that the seriesresistor in regulator 7570 decreases. An increase in optocoupler led-current (7581) results in a decrease in the Vce of transistor 7581, therefore the voltage across capacitor 2576 increases. This will reduce the on-time of FET 7518 due to an increase of the voltage present on pin 14. In the event of an increase of the load (decrease of output voltage +VBATT ), the control circuit will work in the opposite way to the explanation above.

– Mains voltage: this voltage is filtered by L5500 and

L5502, rectified by a diode bridge rectifier 6505 and then smoothed by C2508 which provides a DC input voltage of 300V DC for an ac input voltage of 230V.

– Degaussing : R3503 is a PTC. When switching “on” the

set, the PTC is cold and has a low-ohmic value. Relay 1580 is activated while the Reset signal, coming from the (P is present. This allows a very high degaussing current at initial power on. The PTC will then heat up due to the

9.3.3 Primary sensing (pin 7 of IC7520)

The current sense voltage at pin 7 is used to measure the primary current through FET7518. The primary current is converted into a voltage by R3518. R3514. 3516. couples a part of the main voltage to the same pin 7 of IC 7520 by dividing this sample of the voltage.

Page 24

GB 48 L9.1E AB9.

Circuit description new circuits

Hence the higher the input voltage the more the primary current is limited. In this way the maximum output power of the power-supply is limited.

9.3.4 Demagnetization control (pin 8 of IC7520)

Winding 8 - 9 has the same polarity as the secondary winding that supply the load. When FET 7518 is turned off the voltage at winding 9 becomes positive. The power supply transfers the stored energy at the secondary side. Until the transformer is demagnetized the voltage on the winding remains positive. At the moment that the energy is fully transferred to the load, the voltage at pin 9 of the transformer becomes negative. Additionally with a certain dead time the voltage at control pin 8 of IC 7520 also drops below zero which releases the output buffer (pin 3) and a new cycle starts.

9.3.5 Peak current limiting

An internal clamp at pin 7 allows peak current limiting to be achieved . This pin can never exceed 1V DC and so the maximum primary current through FET 7518, and also the maximum output power is determined. In case of an output being short-circuited or loaded excessively, the I-prim becomes too high which is detected by pin 7. As a result the primary current is limited to its maximum value and the secondary voltages will drop. The voltage at pin 1, which is coupled with the output voltage, will also drop. When the voltage at pin 1 drops below the 9V, IC7520 will stop functioning and the output voltage will rapidly drop to zero. Via start-up circuitry 3510, 3530 and 3529 the voltage originating from the 230V AC mains is used to start-up IC7520 via the supply pin 1. As soon as this voltage reaches the 14.5V, IC7520 starts functioning. If the load is still too much or the output is short-circuited the same cycle will happen again. This fault condition can be clearly identified as the power supply will be loudly tripping.

9.3.9 Thermal Protection

The thermal shutdown circuit triggers the latch circuit when the internal temperature of IC7520 exceeds 155(C ( max. Value ).

9.3.10 Protections

Over voltage protection of the secondary voltages.

After start-up the supply voltage pin 1 will be “taken over” by winding 8 - 9. Pin 1 of IC 7520 is used to detect an over voltage situation on the secondary side of the transformer. If this voltage exceeds 17V (typically the output buffer is disabled, and IC 7520 goes into over voltage protection and a complete restart sequence is required. Check in this case IC7520, IC7581 and the secondary voltage +VBATT ( +140V ). REMARK: In the event of the over voltage situation remaining present, the SMPS will go in protection, start up cycle, protection, etc. The standby led on the front of the set starts flashing.

Under voltage protection of the secondary voltages

If the supply voltage at pin 1 of IC 7520 drops below 9V because of a short-circuit or excessive load, the drive pulse present at pin 3 will be disabled and IC7520 will switch off the complete SMPS. Capacitor C2450 is charged up via start-up resistors 3510, 3530 and 3529, however once the voltage exceeds 14.5V start up threshold, the SMPS will once again commence a re start cycle. In the event of the under voltage situation remaining, the SMPS will again go in protection mode, start up cycle, protection, etc. and so the cycle repeats. This effect is highly audible.

9.4 Audio processing

9.3.6 Cycle-by-cycle control

The T-on control is regulated on a cycle-by-cycle basis. By using this method the secondary voltages control, peak current limitation and all protections are extremely accurate and fast.

9.3.7 Slow-start

As soon as Vpin 1 > 14.5V the SMPS will start-up. During the slow-start procedure both the frequency and the duty cycle will be built up slowly. The duty cycle will initially slowly increase commencing with the absolute lowest possible duty cycle. The maximum duty cycle is determined by C2530 at pin 11 of IC7520, as C2530 is uncharged at start-up.

9.3.8 Standby mode

In standby mode the SMPS switches to the so-called “reduced frequency mode” and runs at about 20 kHz. During standby the SMPS only has to deliver a minimal level of output power. The minimal load threshold level is determined by R3532 at pin 12. In the L9 chassis the SMPS does not have a burst mode in standby but only a reduced frequency mode of about 20 kHz as stated above. In normal operation mode the internal oscillator is around 40 kHz. This frequency is controlled by C2531 at pin 10 of IC7520 and by R3537 at pin 16 of IC7520. In standby mode the frequency of operation is determined by R3536 at pin 15 of IC7520.

The following systems are available:

• BASIC : FM MONO ( M,BG, I and DK : single or dual system )

• NICAM : FM STEREO / NICAM L/L’, NICAM I, NICAM B/ G, NICAM DK

• 2CS : FM STEREO / FM MONO ( all standards 4.5, 5.5,

6.5 MHz )

BASIC models incorporating 2CS (two carrier stereo) use a TDA8844/43 BIMOS device (built-in Mono FM Demodulator circuit) NICAM LL’, /BG, /I versions use a TDA8845 BIMOS (AM sound demodulator & QSS-IF circuit ; built-in) The Audio Module incorporates the MSP3415 multi digital sound processor. This IC incorporates digital audio processing for volume, bass. Treble, balance, mute, spatial sound, incredible sound, smart sound and source selection (SIF-signal, EXT1 or EXT2).

9.4.1 Mono sets

The basic set does not have the digital sound processor MSP3415 IC7833. Instead it is equipped with a SMART SOUND system. This circuit controls the bass and the treble via discrete components and two control signals (BASS and TREBLE) coming from the microprocessor.

Page 25

Circuit description new circuits

2CS

TDA 8844

7952/7951

7833

EXT. 1 AUDIO

EXT. 2 AUDIO

CL 86532104_009.eps

050299

7250-A

(CVBS+SIF)

MSP3415

52 53 49 50

36 37

LEFT OUT

RIGHT OUT

SCART

GB 49L9.1E AB 9.

MONO

TREBLE

BASS

P3 DUAL

MONO

1001

1002

SIF

EXT. AUDIO

MONO

7250

SMART

REAR I/O

AUDIO

L/MONO

SOUND

7250-A

TDA 8844

CVBS+SIF

Figure 9-1

The video IF output is present at pin 11 of the tuner 1000.

7952

CL 86532104_008.eps

050299

amplifier IC 7950 or IC7951. Signal P10MuteVolume enables the output of the sound amplifier.

9.4.3 2CS

This analogue F.M stereo audio standard is predominately used in Germany and The Netherlands. It is used on some cable television networks. The diagram below indicates the AUDIO path for 2CS. The CVBS + SIF signals present at pin 6 from BIMOS, TDA8844-, are passed through a high pass filter and are then fed back into pin 58 of IC 7833 (MSP3415D) for further demodulation. All variants of 2CS are demodulated in this IC.

This signal goes through a sound SAW filter and is fed to the BIMOS via pins 48 and 49, where the signal is demodulated. At pin 6 of BIMOS IC 7250-A, the CVBS + SIF signal is fed to another SAW filter. Signal P3Duall/Mono selects either SAW filter 1001 or SAW filter 1002. The system hardware configuration, option code SY, is set at AD - Dual Mono for a Dual configuration, while option code SY is set at SS for the Mono configuration ( BG,I, DK, M ). Via P3Duall/Mono, a signal coming from the Micro-processor IC7600, it possible to switch between two Mono configurations (BG/DK or BG/I or DK/I).

The audio output of the MSP3415 is fed to the power

This signal goes back to pin 1 of the BIMOS , for further

Figure 9-3

demodulation. The demodulated FM signal or the REAR I/O audio signal, ExtAudioMono, is switched by the BIMOS and is present at pin 15 and pin 55. Pin 55 goes directly to the I/ O SCART - AudioOutL/Mono. The signal at pin 15 is fed to panel A11 - SMART SOUND. After adjustments of the bass and treble, the signal goes to sound amplifier 7953 ( 2W - Mono ).

Audio signals coming from the rear I/O panel are connected to pin 49/50 of IC7833 for the Ext1Audio signals, while pin 52/ 53 of IC 7833 are used for the Ext2Audio signals. IC 7833 performs source selection as well as audio processing such as volume, balance, tone control, mute, spatial stereo, incredible surround sound and SMART sound. The audio output from IC 7833, pin 28 and pin 29, is fed to the power

9.4.2 Nicam

amplifier IC 7950 or IC7951. Signal P10MuteVolume enables the output of the sound amplifier.

This high quality digital audio format is used in Eastern Europe, France, and UK, while NICAM LL’ is being used in France. The figure below shows the AUDIO path for NICAM.

P2LLP/MTRAP

1000

7701 7702

1003

124

1204

NICAM

7250-A

4548

VIF

258

TDA 8845

55 56

SELECTION

FILTER

REAR

EXT 1

AUDIO

MSP 3415

36 37

EXT 2 AUDIO

7833

50 28

7950

R-OUT

L-OUT

TDA 7057

7951

TDA 7053

CL 86532104_010.eps

080299

L+/L

R+/R

9.5 Tuner and Video IF (see circuit diagram A5)

9.5.1 Introduction:

In Figure 9-4 a simplified block diagram of the video path is shown. The main item in the block diagram shown in Fig.9-5 is the video processor item 7250. The IC performs the following functions, video IF demodulation, chroma processing and RGB processing. Additionally synchronisation processing, mono IF audio demodulation and audio selection takes place. Two versions of video processors are used:

• TDA8844 N2 for SW CENELEC BG/DK, CENELEC I NICAM, CENELEC BG NICAM

Figure 9-2

• TDA8845 N1 for CENELEC BG,LL’,I

For a detailed block diagram of the TDA8844/45 see Figure

The video IF output is present at pin 11 of the tuner. Signal

9-4.

P2LlpMono is used to switch between NICAM L or L’. Depending on the required Tuner frequency band, the appropriate SAW filter is selected. The filtered signal is fed to SIF (sound I.F amplifier) input pin 55 and 56 of the BIMOS TDA8845. Output pin 15 - AM Audio output-, is connected to ground via jumper 4002. The QSS signal at pin 2 passes through the selected high pass filter, depending on the system used, and is fed to sound processor 7833. Audio signals coming from the rear I/ O panel are connected to pin 49/50 of IC7833 for the Ext1Audio signals, while pin 52/53 of IC 7833 are used for the Ext2 Audio signals. The QSS-signal, Ext1Audio or Ext2Audio is switched internally to the output pins 28 and 29 of the sound processor. Pin 36 and 37 pass the same selected signal through to the SCART.

Page 26

GB 50 L9.1E AB9.

Circuit description new circuits

IC 7250-4A TDA 8845

56 15

34 5

AFC

IF AMPLIFIER

PLL VIDEO DEMO.

AGC

VIDEO AMPL.

SOUND

AMPL.

AGC

AFC

VIDEO-

BASEBAND

OUTPUT

QSS MIXER

SOUND

AM DEM.

IC 7250-4A TDA 8844

34 5

AFC

IF AMPLIFIER

PLL VIDEO DEMO

VIDEO AMPL.

AFC

OUTPUT

VIDEO-

BASEBAND

7250-4B TDA 8844/45

7250-4C TDA 8844/45

7250-4D TDA 8844/45

VIDEO IDENT

CD MATRIX

SATURATION

CONTROL

+ SKIN TINT

Y (TO SYNC PART)

LUM.

DELAY

PEAKING

CORING

CHROMA

BANDPASS

RGB

MATRIX

BLACK

STRETCH

RGB1

INPUT

41 42 37

DEMODULATOR

R G B

PAL/NTSC/

SECAM

169 36353433

IIC BUS

CONTROL

RGB

OUTPUT

CATH. CALIB.

2223 24 25 26

R G B

21 20 19

BASE-

BAND

DELAY

LINE

RGB OUTPUT

INPUT SELECT Y + CHROMA

PROCESSING

LIMITER

AGC

PLL-

AUDIO

FM DEMO.

AMPL.

MUTE

OUTPUT

VOLUME

CONTROL

9.5.2 Tuner

The PLL tuner (item 1000) is digitally controlled via the I bus. The tuner is suitable to receive off-air, S-(cable) and hyper band channels. Tuner pin description:

• Pin 1: AGC, Automatic gain control voltage input (0.3 -

4.0V)

• Pin 2: VT, tuning voltage input (not connected)

• Pin 3: AS, address select (not connected)

• Pin 4: SCL, IIC-bus serial clock

• Pin 5: SDA, IIC-bus serial data

• Pin 6: not connected

• Pin 7: Vs, PLL supply voltage +5V

• Pin 8: not connected

• Pin 9: Vst, tuning voltage +33V

• Pin 10: ground

• Pin 11: IF, asymmetrical IF output

Note: The +5V supply voltage and the +33V tuning voltage is derived from the line output stage, see diagram A2).

9.5.3 IF band pass filter (SAW FILTER)

Between the tuner output and the video IF input of the video processor the IF band pass filtering take place. Filter 5002 is

SYNC.

SEPARATOR

VERT. SYNC.

SEPARATOR

VCO

CONTROL

52514439

HORIZONTAL

OUTPUT

VERTICAL

OUTPUT

E/W

OUTPUT

SYNC

CL 06532025_035.EPS

160500

Figure 9-4

tuned at 40.4MHz and serves as an extra suppression of the neighbour channel. For the IF band pass filtering SAW filters

C-

are used (item 1003 or 1004). 5 Types of SAW filters are used depending of the version of the set.

9.5.4 Video IF

General: Video IF-demodulation is achieved in combination with reference circuit L5006 connected at pin 3 and 4 of IC7250-A. The AGC control for the tuner is applied via pin 54 of IC7250-A. Internally the IC uses the top sync level as a reference for AGC control. The AGC adjustment can be readjusted via the SAM (service alignment menu). C2201 connected to pin 53 determines the time constant of the AGC. The Base band CVBS signal is present at pin 6 of IC7250-A (normal amplitude 3.2Vpp). From here the signal is fed via transistor 7266 to the sound trap filters and then on to the video source selection circuit. (Figure 9-5) The main functions of the video IF part are:

• IF- amplifier

• PLL-demodulator

• Video buffer

• AFC

• IF-AGC

• Tuner AGC

Page 27

9.5.5 IF- amplifier

YC/CVBS EXT YC/CVBS EXT

CVBS + SIF

R G B

TDA884X

SWITCH

V_PATH1.PPT 20/3/98

TUNER

SOUND

TRAP

CVBS_INT

SOUND

BPF

SIF

(to sound proc..)

CVBS_EXT

CVBS_MON

48/49 25

3238

30 29 28 27 31

242326

CHROMA

PROCESSING

MATRIX

RGB

PROCESSING

+SWITCH

YC/CVBS EXT

RGBFBL

OSD/TXT/SCART

TO CRT

CL 86532104_017.eps

160299

TDA 8844/8845

The IF-amplifier incorporates symmetrical inputs (pins 48 and 49). By using IIC bus control (IFS) the AGC attenuation can be adjusted by up to -20db. Remark: If the BIMOS is replaced the AGC value should be adjusted as part of the repair process. (see software alignment adjustments).

9.5.6 PLL-demodulator

The IF-signal is demodulated with the assistance of the PLL detector. The video IF-demodulator can handle both negative and positively modulated IF signals; selection is achieved via the IIC bus (bit MOD).

9.5.7 Video buffer

Circuit description new circuits

are for the adaptation of the selected application. The I is used for defining and controlling the signals.

GB 51L9.1E AB 9.

C bus

The video buffer is present to provide a low ohmic video output with the required signal amplitude. Additionally, it

Figure 9-5

provides protection against (pin 6) the occurrence of noise peaks. The video buffer stage also contains a level shifter

9.6.2 CVBS/Y/C selection

and a gain stage for both the positive and negative video modulation formats, so that the correct video amplitude and DC level are always present at pin 6 regardless of the input signal.

The input switches are used for selection of the input signal. Three input signals can be selected:

• Pin 13: terrestrial CVBS input.

• Pin 17: external AV1 input.

9.5.8 Video-IF AGC

• Pin10/11: external AV2-Y, CVBS/C input When pin 11 is in the CVBS input mode then pin 10 is not

An AGC system controls the gain of the IF amplifier such that the video output amplitude is constant. The demodulated video signal is supplied, via a low pass filter inside the IC to

used. When pin 11 is in the Y/C input mode then both pins are used and the CHROMA filter in the Y signal path is switched off.

an AGC detector. External AGC de coupling is provided by capacitor 2201 at pin 53. The AGC detector voltage directly

9.6.3 Luminance / Chroma signal processing

controls the IF amplification stages.

Once the signal source has been selected, CHROMA filter

9.5.9 The tuner AGC

calibration is performed. The received colour burst-subcarrier frequency is used for the calibration. Correspondingly,

Tuner AGC is provided to reduce the tuner gain and thus the tuner output voltage when receiving to strong RF signal. The tuner AGC starts working when the video-IF input reaches a certain input level. This level can be adjusted via the IIC bus. The tuner AGC signal is applied to the tuner via the open collector output pin 54 of the BIMOS.

9.5.10 AFC

The AFC output information is available for search tuning. The AFC output is available via the I

C bus ( AFA and AFB signals). For alignment purposes it is displayed in the TUNER submenu of the SAM (See chapter 8).

the CHROMA band-pass filter for PAL/NTSC processing or the cloche filter for SECAM processing is switched on. Pins 34, 35 have the crystals connected to them. These crystals are used for multi-purpose calibration of the burst sub-carrier. The selected luminance signal is then supplied to the Horizontal and Vertical synchronisation processing circuits and to the luminance processing circuits. In the Luminance processing block, the luminance signal is applied to the CHROMA trap. This trap is switched on or off depending upon on the colour burst detection of the CHROMA calibration circuit. Before the luminance signal is applied to pin 28 of the TV-processor the signal is applied to a “peaking” and “coring” circuit. In these circuits the sharpness and noise level of the signal can be influenced via the remote control (control menu in the user menu ).

9.6 Video Signal Processing (see circuit diagram A6)

9.6.1 Introduction:

The video signal processing can be divided in the following parts:

• CVBS/Y/C input selection

• Luminance and chrominance signal processing

• PAL/NTSC and SECAM demodulation /Auto system

manager

• YUV/RGB processing/ black stretcher

• Second RGB insertion

• RGB processing

• Black current calibration loop

• Beaming current limiting

Above mentioned processing circuits are integrated in the TV- processor (parts B and C). The surrounding components

9.6.4 PAL, NTSC and SECAM demodulation via the Auto system manager

The colour decoder circuit detects whether the signal is a PAL or NTSC signal. The result is made known to the auto system manager. The base-band delay line is activated when a PAL or SECAM signal is detected. For the SECAM colour standard a reference voltage is generated at pin16 of the TVprocessor. Connected at Pin 9 of the TV-processor, is the band-gap decoupling circuit, which consists of (2214,2215). The bandgap circuit provides a very stable and temperature independent reference voltage. It ensures optimal performance of the TV-processor and is used by almost all functional blocks inside the processor. The Y signal and the demodulator outputs R-Y and B-Y are present at pin 28, 29, 30 of the TV-processor. The auto system manager identifies PAL, NTSC and SECAM colour standards and is controllable via the IIC bus. Connected on pin 36 of the TV-

Page 28

GB 52 L9.1E AB9.

Circuit description new circuits

processor is the Loop Filter for the phase detector The filter chosen provides an optimal transient response, which ensures both an optimum for noise bandwidth and colour acquisition time.

9.6.5 YUV / RGB processing/ black stretching

The signal Y, R-Y and B-Y present on pins 27, 31, 32 of the TV-processor are used as the input signals for the colour decoding section of the BiMOS (IC7520-C). The YUV processor enables the colour saturation control and also converts the Y, B-Y and B-Y signals to the R, G, B signal format via the colour matrix circuit. The black stretcher circuit , initial stage of the matrix circuit, extends the Grey signal level towards the actual black level. The amount of extension depends upon the difference between actual black level and the darkest part of the incoming video signal level. This feature is fully integrated. The user can switch this circuit on or off by using the Contrast Plus option in the user menu.

9.6.6 Second RGB insertion

Pins 23, 24, 25 are used as the inputs for the second R, G, B signals insertion. Pin 26 of the TV-processor is the input for the insertion control signal which is called “FBL”. When the FBL signal level becomes higher than 0.9V (but less than 3V) the R, G, B signals at pins 23,24,25 are inserted into the picture by using the internal switches incorporated in the TVprocessor. This second insertion possibility is used for insertion of the on screen display signals , TXT or R. G. B signals from the SCART socket..

ensures that correct peak white limiting and the average beam current limiting takes place. Components 6212, 2227, 3253, 3246 are for the average beam current limiting and the items connected to 7263 are for the peak white limiting. As a reference for the average beam current control the signal EHT_info is used. This signal is a measurement of the picture contents. It is filtered by 3253, 2227. As the time constant of the filter is much bigger than the frame period time, the DC at the anode of 6212 represents the average value of the picture content. Via 6212 and 2226 the DC voltage at pin 22 is slowly ‘clamped’. For peak white limiting transistor 7263 is utilised. When peak white occurs, the DC voltage at the base of 7263 drops rapidly. 7263 starts conducting, which provides a path to discharge the capacitor 2226 very fast. The voltage bias at the base of 7263 is fixed via voltage divider 3251 and 3249. The RGB output signals are applied to the CRT panel via connector 0243. Via diodes 6263, 6264 and 6265 and series resistor 3253, the RGB signals are also connected to the CRT_discharge signal. The level of this signal is only high during the time the set is switched off. And id due to the cathodes of the CRT are driven fully negative. That means that the beam current is increased. and consequently the CRT quickly discharged.

9.6.10 CRT panel (see circuit diagram B)

On the CRT panel the output amplifiers for the RGB signals ( IC T7330, DA6107Q) are located. Via the outputs 9, 8 and 7 of the IC the cathodes of the CRT are driven. The supply voltage for the IC is +200VA and is derived from the line output stage.

9.6.7 RGB processing

The RGB processing circuit enables the picture parameters to be adjusted by using a combination of the user menus and the remote control. Additionally automatic gain control for the RGB signals via cut-off stabilisation is achieved in this functional block.. The block also inserts the cut off point “measuring pulses” into the RGB signals during vertical retrace period.. From outputs 19,20 and 21 the RGB signals are then applied to the output amplifiers on the CRT panel.

9.6.8 Black current calibration loop

The black current calibration loop ensures that the white balance at low signal levels and low light white balance is skipped. By means of the inserted measuring pulses, the black current calibration loop, tracks the beam current feed back of the RGB signals at the cathodes of the picture tube. As a result of this calibration, the individual black level of the RGB output signals is shifted to a level which allocates around 10uAof beam current to each of the RGB signals. Pin 18 (BC_info) of the BIMOS is used as the feed back input from the CRT base panel.

9.6.9 Beam current limiting

A beam current limiting circuit inside the BiMOS handles the contrast and brightness control for the RGB signals. This prevents the CRT tube being over driven, which may cause serious damage in the line output stage. The reference used for this purpose is the DC voltage on Pin 22 (BLCIN) of the TV-processor. Contrast and brightness reduction of the RGB output signals is therefore proportional to the voltage present on this pin. Contrast reduction starts when the voltage on pin 22 is lower than 3.0 V. Brightness reduction starts when the voltage on pin 22 is less than 2.0 V. The voltage on pin 22 is normally 3.3V (limitor not active). To enable correct operation however, an external adaptation to the circuit is required for the correct functioning of the limiting function. This is connected to Pin 22, the circuit therefore

Page 29

Circuit description new circuits

GB 53L9.1E AB 9.

9.7 List of abbreviations

2CS 2 Carrier Stereo A/P Asia Pacific; schematic/PCB

information (only) applicable for Asia

Pacific sets AFC Automatic Frequency Control AQUADAG Aquadag layer on the (outside of

the) picture tube AudioOutR Audio signal at Right output channel. AudioOutL/Mono Audio signal at Left output channel /

Mono output channel. AV_MUTE Signal to mute the sound on the

Audio-out of Cinch / Scart

(Combined with RBG_Blanking) Ext2Fun_SW (AV_Mute/ Ext2Fun_SW) Switching signal from Scart2 to

micro controller indicate presence

and type of signal on Scart2. (no

signal / CVBS 16:9 / CVBS 4:3) AV Audio Video signal AVL Automatic Volume Level B_TXT_OSD Blue TXT or OSD signal from uC to

the video controller IC7250 (BIMOS) BASS Control signal for BASS BCI Beam Current information BTSC Broadcast Television Standard

Committee; sound standard for

America and Asia Pacific Buzzer Buzzer (only used in L9-ITV) CRT DISCHARGE Fast drop of VBATT during after

switch off the set. Which result in

EHT voltage reducing to less than

18 kv within 5 sec. CTI Colour Transient Improvement CVBS Colour Video Blanking

Synchronisation. Video signal

containing colour, black/white,

blanking and synchronisation

information. CVBS_EXT CVBS external = CVBS signal form

external source (VCR, DVD etc.) CVBS_INT CVBS internal = CVBS signal from

the tuner CVBS_MON CVBS monitor (CVBS) signal to

Cinch or Scart CVBS_Terr CVBS Terrestrial output signal CVBS_TXT CVBS for TXT processing in micro

controller Din Digital input signal only used in L9-

ITV) Dout Digital output signal (only used in

L9-ITV) DBX Dynamic Bass Expander (only used

for BTSC sound system) DNR Dynamic Noise Reduction EAR Earth (ground layer) EEPROM Electrically Erasable Programmable

Read Only Memory (also called

NVM; non-volatile memory) EHT-INFO Extra high tension information;

Beam current related signal from

CRT to BiMOS. Ext1 B RGB External 1 Blue input signal. Ext1 FB RGB External 1 Fast-blanking input

signal. Ext1 G RGB External 1 Green input signal. Ext1 R RGB External 1 Red input signal. Ext1 Video RGB External 1 Video input signal. Ext2 AudioL/Mono External 2 Audio Left input signal /

Mono input signal. Ext Audio/Mono External Audio input signal / Mono

input signal.

Ext2 AudioR External 2 Audio Right input signal. Ext2C Exterial 2 SVHS Chrominance (C)

input signal.

Ext2Video/Y External 2 Video input signal or

SVHS Luminance (Y) input signal. ESD Electrostatic Discharge EURO Europe; schematic/PCB information

(only) applicable for European sets EWD_dyn Dynamic East-West correction to

compensate EHT variation EWDRIVE East-West drive correction FB_TXT_OSD Fast blanking signal from

microcontroller to IC7250 (BIMOS)

for inserting or displaying TXT and

OSD information (generated by the

micro controller) Filament Filament (heater voltage) from LOT

to CRT FBL Fast Blanking FFBL Full screen Fast Blanking FM/AM/ Ext_VC_AudioMon o FM, AM or external mono signal

from BiMOS to audio processor

input (only used in Mono and Nicam

L sets) Front/Ext1AudioL Front audio Left input signal /

External 1 Audio Left input signal. Front/Ext1AudioR Front audio Right input signal /

External 1 Audio Right input signal. GND Ground GND_LOT Ground of LOT G_TXT_OSD Green TXT or OSD signal from

micro controller to the video

controller IC7250 (BIMOS) HD Horizontal pulse derivation HDRIVE Horizontal output drive HEW_protn Switching signal to (de)activate the

XRAY protection which is measured

via pin 50 of the BIMOS (only for

USA sets) Hflybk Horizontal flyback pulse used to

monitor the horizontal oscillator IF Intermediate Frequency signal from

the tuner 12C (or IIC) 2 Wire communication protocol

between microcontroller and

intergrated circuits IC Integrated Circuit I/O Input/Output INT Audio internal output IR Output signal from infrared receiver

to micro controller. KeyBd1 Local keyboard control signal to

micro controller KeyBd2 Local keyboard control signal to

micro controller (In protection mode

KeyBd2 is Ground) KeyBd3 Local keyboard control signal to

micro controller L- Power amplifier output to

headphone and speaker L+ Power amplifier output to speaker LED LED control signal from micro

controller to LED LATAM Latin America; schematic/PCB

information (only) applicable for

Latin American (incl. Brazilian) sets LeftOut Audio Left signal output LTI Luminance Transient Improvement

(= steepness) MainAudioL/Mono Audio Left/Mono signal to input

power amplifier MainAudioR Audio Right signal to input power

amplifier

Page 30

GB 54 L9.1E AB9.

Circuit description new circuits

MON Audio monitor output NICAM Near Instantaneous Companded

Audio Muliplex (digital audio) NR Noise Reduction NTSC NTSC colour system OSD On Screen Display P0Sys1/AM Switching signal with several

functions: BiMOS crystal selection (only for Latam sets) Selection of AM or FM signal (used

in combination with P1Sys2/

AMFM_ExtSel) (only for Europe) P1Sys2/ AMFM_ExtSel Switching signal with several

functions: BiMOS crystal selection (only for Latam sets) Selection of internal AM/FM signal

or an external signal (used in

combination with P0Sys1/AM) P2LLp/Mtrap Switching signal with several

functions: M-trap (sound filtering)

switching (only for A/P Pal Multi

sets) BiMOS crystal selection (only for Latam sets) Selection of L or L’ system (only for

Europe sets) P3Dual/Mono Switching signal to select the sound

filter in dual-system Mono sets (BG/

I, BG/DK or I/DK). P4ScartPin8/SVHS Switching signal from I/O to micro

controller with several functions:

Scart1 I/O: detects signal type

connected to Scart 1 (no signal, 16:9

signal, 4:3 signal) (only for Europe)

Cinch I/O: detects signal type

connected to cinch: SVHS or CVBS

(not for Europe) P5BassSw Bass switching signal (only for some

mono sets) P6TrebleSw Treble switching signal (only for

some mono sets) P7Ext1/2 Used in L9-ITV sets (Hotel TV) P9stbyon+protn Signal from E-W and LOT output to

micro controller to (de)activate the

protection mode P10Mute/Volume Audio mute / Volume control signal

pin POR/CLK Power on reset (only used in L9-ITV

sets) R- Power amplifier output " R- " to

speaker R+ Power amplifier output " R+ " to

headphone and speaker RAM Random Access Memory RESET Reset signal to micro controller RF_AGC Automatic gain control signal from

BiMOS output to tuner input. RGB Red-Green-Blue RGB_Blanking Red Green Blue Blanking signal

(combined with AV_MUTE) RightOut Audio right signal output R_TXT_OSD Red TXT or OSD signal from uC to

the video controller IC7250 (BIMOS) ROM Read Only Memory SAM Service Alignment Mode. Service

mode for alignments and error buffer

display SAP Second audio program (only for

USA & A/P sets) SCL Clock line of the I2C-bus SCL2 2nd Clock line of the IIC-bus (only

used in L9-ITV sets)

SDA Data line of the I2C-bus SDA2 2nd Data line of the I2C-bus (only

used in L9-ITV sets)

SDM Service Default Mode. Ser vice mode

with predefined settings for waveform and voltage measurements, error buffer display and option (byte) setting.

SIF Sound IF signal for FM audio

demodulator SMPS Switching Mode Power Supply STANDBY Switching signal from micro

controller; “low” for standby (power

supply will be switched to stand-by

mode), “high” for normal operation SW_OUT Selected Output signal from source SYNC Synchronization TBD To Be Defined TREBLE Control signal for treble TXT Teletext uC Micro controller USA United States; schematic/PCB

information (only) applicable for

North American sets V_TUNE Tuning voltage for tuner Vdrive - Negative Vertical pulse signal Vdrive + Positive Vertical pulse signal VD Vertical pulse derivation VFL Vertical flyback pulse used to inform

the micro controller that flyback

takes place. This is important for

OSD and TXT Vflybk Vertical flyback pulse VG2 Voltage on grid 2 of the picture tube

(screen control) VideoOut CVBS output signal VOLUME Control signal (from micro controller,

but on DC level via RC network) for

sound processing in sound IC XRAY-PROT XRAY protection (only for USA sets) YC Luminance (Y) and Chrominance

(C)

Page 31

10. Spare parts list

Spare parts list

GB 55L9.1E AB 10.

[A] Mono Carrier

Various

0025 4822 256 10336 Led Holder 0044 3139 121 26961 EMC Connection plate 0127

4822 265 11253 Fuse Holder

0136 3122 121 24785 Spring for Bracket 0137 4822 492 70289 Spring 0138 4822 492 70289 Spring 0139 3122 121 24785 Spring for Bracket 0140 4822 492 70289 Spring 0152 3104 301 09421 Cable 6P 400mm 0153 3104 301 09431 Cable 4P 400mm 0163 3111 254 24821 Lyre Clamp

4822 402 10844 PCB Relief Bracket

0189

0200 4822 267 11053 Conn. 5P 0211

4822 265 20723 Conn. 2P

4822 267 10774 Conn. 2P

0212

0217 4822 267 10734 Conn. 5P 0220 4822 265 30734 Conn. 4P

4822 267 10966 Conn. 2P

0221

2422 025 10646 Conn. 2P

0222

0225 4822 267 10676 SDM Connector 0226 4822 267 10676 SDM Connector 0227 4822 267 10565 Conn. 4P 0229 4822 267 10735 Conn. 3P

4822 276 14024 Power Switch

0231

0243 2422 025 04854 Conn. 6P

4822 267 20466 Conn. Picture Tube

0254

0256 4822 267 10565 Conn. 4P 0260 4822 267 10735 Conn. 3P 0267 4822 267 10735 Conn. 3P

4822 210 10848 Tuner UV1316/A I U-2

1000

1003 4822 242 10575 Saw Filter OFWJ1980M 1003 4822 242 81436 Saw Filter OFWK3953M 1003 4822 242 81964 Bead 100MHz 1004 4822 242 11055 Saw Filter OFWK6289K 1200 4822 242 10315 XTal 1200 4822 242 81712 XTal 1201 4822 242 81572 XTal 6,0MHz 1204 4822 242 10688 Saw Filter OFWK9456M 1205 4822 242 10695 XTal 4.433 619 MHz 1208 4822 242 10776 XTal 3.579 545 MHz

2422 086 10914 Fuse 4A 250V

1500

4822 071 51002 Fuse 1A

1572

4822 071 52502 Fuse 2.5A

1573

1580

4822 280 10367 Relay 12V-5A

1660 4822 242 10694 XTal 12MHz 1822 4822 242 10769 XTal 18.432MHz

2001 4822 126 13751 47nF 10% 63V 2002 4822 124 40196 220µF 20% 16V 2002 4822 124 40207 100µF 20% 25V 2003 4822 124 80791 470µF 20% 16V 2004 5322 122 32654 22nF 10% 63V 2011 4822 124 40248 10µF 20% 63V 2013 4822 126 13838 100nF 20% 50V 2014 4822 122 33177 10nF 20% 50V 2018 4822 122 33177 10nF 20% 50V 2101 5322 122 31863 330pF 63V 2102 5322 122 31863 330pF 63V 2103 5322 122 31863 330pF 63V 2104 5322 122 31863 330pF 63V 2105 5322 122 31863 330pF 63V 2106 5322 122 31863 330pF 63V 2108 5322 122 31863 330pF 63V 2110 5322 122 31863 330pF 63V 2111 4822 124 40248 10µF 20% 63V 2112 4822 124 40248 10µF 20% 63V 2115 4822 126 14043 1µF 20% 16V 2201 4822 124 21913 1µF 20% 63V 2204 4822 122 33891 3.3nF 10% 63V 2205 4822 126 13838 100nF 20% 50V 2206 4822 126 13838 100nF 20% 50V 2207 4822 124 40207 100µF 20% 25V 2208 4822 124 40207 100µF 20% 25V 2209 4822 126 13482 470nF 80/20% 16V 2210 5322 122 32967 5.6pF 10% 63V 2211 4822 126 13482 470nF 80/20% 16V 2212 4822 126 13482 470nF 80/20% 16V 2213 4822 126 13482 470nF 80/20% 16V 2214 5322 122 32654 22nF 10% 63V 2215 4822 124 22652 2.2µF 20% 50V 2216 2238 780 15654 220nF 16V 2217 4822 126 13486 15pF 2% 63V

2220 4822 126 13486 15pF 2% 63V 2220 4822 126 13689 18pF 1% 63V 2221 5322 122 32531 100pF 5% 50V 2222 4822 126 13751 47nF 10% 63V 2225 4822 126 14043 1µF 20% 16V 2226 4822 124 81151 22µF 50V 2226 5322 124 41378 33µF 20% 35V 2227 4822 124 21913 1µF 20% 63V 2245 4822 124 40769 4.7µF 20% 100V 2247 4822 126 13751 47nF 10% 63V 2248 4822 126 13751 47nF 10% 63V 2249 4822 126 13751 47nF 10% 63V 2401 5322 121 42386 100nF 5% 63V 2402 5322 121 42386 100nF 5% 63V 2403 4822 124 40255 100µF 20% 63V 2404 5322 121 42386 100nF 5% 63V 2405 5322 122 32268 470pF 10% 50V 2407 5322 122 32268 470pF 10% 50V 2409 4822 121 42408 220nF 5% 63V 2420 5322 126 10223 4.7nF 10% 63V 2426 5322 121 42386 100nF 5% 63V 2428 4822 122 33127 2.2nF 10% 63V 2429 4822 124 21913 1µF 20% 63V 2430 4822 124 40248 10µF 20% 63V 2431 4822 126 13838 100nF 20% 50V 2437 4822 126 13838 100nF 20% 50V 2438 4822 126 14043 1µF 20% 16V 2440 5322 126 10511 1nF 5% 50V 2441 5322 126 10511 1nF 5% 50V 2448 4822 122 31173 220pF 10% 500V 2450 4822 124 11575 47µF 20% 160V 2451 4822 121 41857 10nF 5% 250V 2451 4822 121 51305 15nF 10% 50V 2456 4822 121 43526 47nF 5% 250V 2457 2022 333 00167 560nF 250V 2457 2222 479 90016 270nF 5% 250V 2457 4822 121 10518 390nF 5% 250V 2458 4822 124 12438 2.2µF 20% 100V 2459 4822 126 13185 680pF 10% 500V 2461 4822 122 31175 1nF 10% 500V 2462 4822 121 43526 47nF 5% 250V

4822 126 12263 220pF 10% 2kV

2463

4822 126 13435 1.2nF 10% 2kV

2463

2464 4822 121 10739 2.2µF 5% 160V

4822 121 70545 7.5nF 5% 1.6kV

2465

4822 121 70618 12nF 5% 1600V

2465

4822 121 70649 9.1nF 5% 1.6kV

2466 4822 121 40483 10nF 10% 400V 2468 4822 121 40488 22nF 10% 400V 2468 5322 121 42532 18nF 10% 400V 2468 5322 121 44151 33nF 10% 400V 2469 4822 121 51319 1µF 10% 63V 2470 4822 122 31177 470pF 10% 500V 2472 5322 124 41379 2.2µF 20% 50V 2473 4822 124 41751 47µF 20% 50V 2475 4822 121 10868 510nF 5% 250V 2475 4822 126 14096 560nF 5% 250V 2480 4822 121 40518 100nF 10% 250V 2481 4822 121 51252 470nF 5% 63V 2482 4822 121 40482 68nF 10% 250V 2484 5322 121 42386 100nF 5% 63V 2485 4822 124 12265 4.7µF 20% 250V 2486 4822 124 80791 470µF 20% 16V 2487 4822 124 40255 100µF 20% 63V 2488 4822 124 80791 470µF 20% 16V 2489 4822 124 80791 470µF 20% 16V 2490 4822 122 31177 470pF 10% 500V 2491 4822 122 31177 470pF 10% 500V 2492 4822 126 10326 180pF 5% 63V

4822 126 13589 470nF 275V

2500

4822 126 14153 2.2nF 10% 1kV

2502

2504

4822 126 14153 2.2nF 10% 1kV

2505

3198 019 61520 1N5 1kV

2507

2508 4822 124 12415 220µF 20% 400V 2511

3198 019 64710 470p 1kV

2517 5322 122 32331 1nF 10% 100V 2518

3198 019 64710 470p 1kV

2520 4822 126 13695 82pF 1% 63V 2521 4822 122 33891 3.3nF 10% 63V 2522 4822 122 33891 3.3nF 10% 63V 2524 5322 122 31863 330pF 63V 2529 4822 126 13838 100nF 20% 50V 2530 4822 124 22776 1µF 50V 2531 4822 121 10738 1nF 2% 50V 2532 5322 122 32268 470pF 10% 50V 2533 4822 122 33127 2.2nF 10% 63V 2540 4822 124 81188 100µF 20% 25V 2541 4822 124 12416 3.3µF 20% 160V

2542 4822 124 40433 47µF 20% 25V

4822 126 14049 1.5nF 20% 250V

2545

2546 4822 126 13473 220nF 80-20% 50V

3198 019 64710 470p 1kV

2550

2551 4822 124 42336 47µF 20% 160V 2561 4822 124 40784 3300µF 20% 16V

3198 019 62210 220p 1kV

2562

2571 4822 124 12417 2200µF 20% 25V 2573 4822 126 12105 33nF 50V 2575 4822 126 13838 100nF 20% 50V 2576 5322 122 31866 6.8nF 10% 63V 2586 4822 124 80144 220µF 20% 25V 2604 4822 124 81151 22µF 50V 2609 5322 126 10511 1nF 5% 50V 2613 5322 121 42386 100nF 5% 63V 2615 4822 126 13838 100nF 20% 50V 2616 5322 122 32658 22pF 5% 50V 2617 5322 122 32658 22pF 5% 50V 2618 5322 122 32531 100pF 5% 50V 2619 4822 124 21913 1µF 20% 63V 2620 5322 122 32658 22pF 5% 50V 2621 5322 122 32658 22pF 5% 50V 2622 4822 124 80144 220µF 20% 25V 2623 4822 122 33177 10nF 20% 50V 2624 4822 126 13694 68pF 1% 63V 2625 4822 122 33172 390pF 5% 50V 2626 5322 122 32531 100pF 5% 50V 2627 5322 122 32531 100pF 5% 50V 2628 5322 122 32531 100pF 5% 50V 2629 4822 122 30103 22nF 80% 63V 2630 4822 126 13838 100nF 20% 50V 2631 4822 126 14043 1µF 20% 16V 2633 4822 122 33177 10nF 20% 50V 2679 4822 126 13838 100nF 20% 50V 2681 4822 124 80144 220µF 20% 25V 2697 5322 126 10511 1nF 5% 50V 2843 4822 124 40207 100µF 20% 25V 2850 4822 126 13693 56pF 1% 63V 2851 5322 126 10511 1nF 5% 50V 2852 5322 126 10511 1nF 5% 50V 2853 5322 126 10511 1nF 5% 50V 2854 5322 126 10511 1nF 5% 50V 2855 5322 122 32286 3.3pF 5% 50V 2856 5322 122 32286 3.3pF 5% 50V 2857 4822 126 14043 1µF 20% 16V 2858 4822 126 13692 47pF 1% 63V 2859 4822 126 13486 15pF 2% 63V 2859 4822 126 13693 56pF 1% 63V 2860 4822 124 40248 10µF 20% 63V 2861 4822 126 13838 100nF 50V 20% 2862 4822 126 13838 100nF 20% 50V 2863 4822 124 40248 10µF 20% 63V 2864 4822 126 14076 220nF 25V 2865 4822 126 14076 220nF 25V 2866 4822 126 14076 220nF 25V 2867 4822 126 14076 220nF 25V 2868 4822 124 40769 4.7µF 20% 100V 2869 4822 126 13838 100nF 20% 50V 2870 4822 126 13838 100nF 20% 50V 2871 4822 124 40248 10µF 20% 63V 2872 4822 126 13838 100nF 20% 50V 2874 4822 126 13692 47pF 1% 63V 2875 4822 126 13692 47pF 1% 63V 2877 4822 126 13838 100nF 20% 50V 2882 4822 122 33127 2.2nF 10% 63V 2883 4822 124 40248 10µF 20% 63V 2884 4822 122 33127 2.2nF 10% 63V 2887 4822 122 33575 220pF 5% 63V 2888 4822 124 40207 100µF 20% 25V 2889 4822 126 13838 100nF 20% 50V 2891 4822 126 13691 27pF 1% 63V 2891 5322 122 32531 100pF 5% 50V 2950 4822 124 40207 100µF 20% 25V 2952 4822 126 14043 1µF 20% 16V 2953 4822 126 12105 50V 33nF 2954 4822 126 13482 470nF 80/20% 16V 2954 4822 126 14043 1µF 20% 16V 2955 4822 122 33127 2.2nF 10% 63V 2955 5322 122 31647 1nF 10% 63V 2956 4822 126 14043 1µF 20% 16V 2957 4822 126 12105 50V 33nF 2958 4822 126 13482 470nF 80/20% 16V 2958 4822 126 14043 1µF 20% 16V 2959 4822 122 33127 2.2nF 10% 63V 2959 5322 122 31647 1nF 10% 63V 2960 4822 124 80707 2200µF 20% 25V 2961 4822 124 11947 10µF 20% 16V 2962 5322 122 32448 10pF 5% 63V 2963 5322 122 32448 10pF 5% 63V

Page 32

GB 56 L9.1E AB10.

Spare parts list

3000 4822 116 52175 100Ω 5% 0.5W 3001 4822 116 52175 100Ω 5% 0.5W 3013 4822 051 20008 Jumper 3013 4822 117 10833 10k 1% 0.1W 3014 4822 051 20472 4k7 5% 0.1W 3015 4822 051 20223 22k 5% 0.1W 3016 4822 116 52228 680Ω 5% 0.5W 3024 4822 116 83961 6k8 5% 3026 4822 117 11449 2k2 5% 0.1W 3100 4822 117 10353 150Ω 1% 0.1W 3103 4822 116 52303 8k2 5% 0.5W 3104 4822 117 10833 10k 1% 0.1W 3105 4822 116 83868 150Ω 5% 0.5W 3108 4822 116 52303 8k2 5% 0.5W 3109 4822 117 10833 10k 1% 0.1W 3112 4822 116 52201 75Ω 5% 0.5W 3113 4822 116 52175 100Ω 5% 0.5W 3114 4822 116 52201 75Ω 5% 0.5W 3115 4822 116 52175 100Ω 5% 0.5W 3116 4822 116 52175 100Ω 5% 0.5W 3117 4822 116 52201 75Ω 5% 0.5W 3118 4822 116 52201 75Ω 5% 0.5W 3119 4822 116 52175 100Ω 5% 0.5W 3123 4822 116 52201 75Ω 5% 0.5W 3125 4822 117 12521 68Ω 1% 0.1W 3135 4822 051 20561 560Ω 5% 0.1W 3138 4822 116 52244 15k 5% 0.5W 3139 4822 051 20472 4k7 5% 0.1W 3140 4822 116 52201 75Ω 5% 0.5W 3141 4822 116 52175 100Ω 5% 0.5W 3144 4822 116 52199 68Ω 5% 0.5W 3145 4822 051 10102 1k 2% 0.25W 3148 4822 051 20101 100Ω 5% 0.1W 3149 4822 051 20101 100Ω 5% 0.1W 3150 4822 051 20101 100Ω 5% 0.1W 3151 4822 051 20101 100Ω 5% 0.1W 3152 4822 051 20101 100Ω 5% 0.1W 3153 4822 116 83933 15k 1% 0.1W 3154 4822 051 20472 4k7 5% 0.1W 3155 4822 051 20471 470Ω 5% 0.1W 3200 4822 051 10102 1k 2% 0.25W 3201 4822 051 20391 390Ω 5% 0.1W 3203 4822 117 13577 330Ω 1% 1.25W 3204 4822 116 52249 1k8 5% 0.5W 3205 4822 051 10102 1k 2% 0.25W 3206 4822 117 10353 150Ω 1% 0.1W 3208 4822 050 15609 56Ω 1% 0.4W 3208 4822 116 52175 100Ω 5% 0.5W 3208 4822 116 52206 120Ω 5% 0.5W 3209 4822 051 20223 22k 5% 0.1W 3212 4822 051 20471 470Ω 5% 0.1W 3213 4822 051 20471 470Ω 5% 0.1W 3214 4822 051 20562 5k6 5% 0.1W 3215 4822 051 20223 22k 5% 0.1W 3216 4822 051 20008 Jumper 3217 4822 051 20225 2M2 5% 0.1W 3218 4822 051 20101 100Ω 5% 0.1W 3219 4822 051 20561 560Ω 5% 0.1W 3220 4822 117 11454 820Ω 1% 0.1W 3225 4822 051 20333 33k 5% 0.1W 3228 4822 051 20101 100Ω 5% 0.1W 3231 4822 117 13577 330Ω 1% 1.25W 3232 4822 117 13577 330Ω 1% 1.25W 3233 4822 117 13577 330Ω 1% 1.25W 3243 4822 051 20472 4k7 5% 0.1W 3246 4822 051 20333 33k 5% 0.1W 3246 4822 117 11149 82k 1% 0.1W 3246 4822 117 13579 220k 1% 0.1W 3247 4822 116 52175 100Ω 5% 0.5W 3248 4822 116 52175 100Ω 5% 0.5W 3249 4822 051 20334 330k 5% 0.1W 3250 4822 051 20008 Jumper 3251 4822 051 20154 150k 5% 0.1W 3251 4822 117 10834 47k 1% 0.1W 3252 4822 117 11449 2k2 5% 0.1W 3253 4822 117 11449 2k2 5% 0.1W 3257 4822 051 20101 100Ω 5% 0.1W 3258 4822 051 20101 100Ω 5% 0.1W 3259 4822 051 20101 100Ω 5% 0.1W 3265 4822 051 20154 150k 5% 0.1W 3267 4822 116 52175 100Ω 5% 0.5W 3401 4822 111 30834 6Ω8 3401 5322 116 53564 3Ω3 5% 0.5W 3402 4822 111 30834 6Ω8 3402 5322 116 53564 3Ω3 5% 0.5W 3403 4822 111 30834 6Ω8 3403 5322 116 53564 3Ω3 5% 0.5W 3405 4822 050 21802 1k8 1% 0.6W 3405 4822 050 22402 2k4 1% 0.6W 3405 4822 050 22702 2k7 1% 0.6W

3406 4822 050 11002 1k 1% 0.4W 3407 4822 050 21802 1k8 1% 0.6W 3407 4822 050 22402 2k4 1% 0.6W 3407 4822 050 22702 2k7 1% 0.6W 3408 4822 050 11002 1k 1% 0.4W

4822 052 10158 1Ω5 5% 0.33W

3409

3410 4822 116 83872 220Ω 5% 0.5W 3411 4822 116 83872 220Ω 5% 0.5W 3420 4822 051 20474 470k 5% 0.1W 3421 4822 116 52256 2k2 5% 0.5W 3422 4822 116 52256 2k2 5% 0.5W 3423 4822 051 20474 470k 5% 0.1W 3423 4822 051 20684 680k 5% 0.1W 3423 4822 051 20824 820k 5% 0.1W 3424 4822 051 20106 10M 5% 0.1W 3425 4822 051 20154 150k 5% 0.1W 3425 4822 117 10837 100k 1% 0.1W 3425 4822 117 13579 220k 1% 0.1W 3426 4822 051 20393 39k 5% 0.1W 3428 4822 051 20223 22k 5% 0.1W 3429 4822 051 20273 27k 5% 0.1W 3431 4822 051 20332 3k3 5% 0.1W 3432 4822 051 20101 100Ω 5% 0.1W 3433 4822 050 21003 10k 1% 0.6W 3433 4822 116 52289 5k6 5% 0.5W 3436 4822 051 10102 1k 2% 0.25W 3437 4822 117 10833 10k 1% 0.1W 3438 4822 050 23303 33k 1% 0.6W 3442 4822 116 52276 3k9 5% 0.5W 3448 4822 116 52303 8k2 5% 0.5W 3449 4822 116 52269 3k3 5% 0.5W 3452 4822 053 12339 33Ω 5% 3W 3454 4822 053 11153 15k 5% 2W 3458 4822 050 11002 1k 1% 0.4W 3461 4822 116 52269 3k3 5% 0.5W 3462 2322 257 41512 1k 5W 3462 4822 117 13424 8k2 5% 5W

4822 052 10109 10Ω 5% 0.33W

3465

3468 4822 050 11002 1k 1% 0.4W 3470 4822 050 23303 33k 1% 0.6W 3470 4822 116 52257 22k 5% 0.5W 3472 4822 116 52234 100k 5% 0.5W 3472 4822 116 52304 82k 5% 0.5W 3473 4822 050 11002 1k 1% 0.4W 3474 4822 050 24708 4Ω7 1% 0.6W 3474 4822 116 52176 10Ω 5% 0.5W 3475 4822 050 24708 4Ω7 1% 0.6W 3475 4822 116 52176 10Ω 5% 0.5W 3477 4822 116 52175 100Ω 5% 0.5W 3478 4822 116 83874 220k 5% 0.5W 3479 4822 116 52219 330Ω 5% 0.5W 3480 4822 050 22703 27k 1% 0.6W 3481 4822 050 24703 47k 1% 0.6W 3481 4822 050 25603 56k 1% 0.6W 3481 4822 117 13667 32k4 1% 0.5W 3482 4822 050 24703 47k 1% 0.6W 3482 4822 050 25603 56k 1% 0.6W 3483 4822 116 52257 22k 5% 0.5W 3484 4822 050 21003 10k 1% 0.6W

4822 052 11108 1Ω 5% 0.5W

3486

3487

4822 052 11108 1Ω 5% 0.5W

4822 052 11478 4Ω7 5% 0.5W

3488

4822 052 11108 1Ω 5% 0.5W

3490

3491

4822 052 11108 1Ω 5% 0.5W

3492

3495 4822 117 11507 6k8 1% 0.1W 3496 4822 117 10833 10k 1% 0.1W 3497 4822 117 10833 10k 1% 0.1W

4822 053 21155 1M5 5% 0.5W

3500

3501 3198 013 04710 470Ω 1/2W 3502

4822 053 21225 2M2 5% 0.5W

3503 4822 116 10105 9Ω 220V PTC 3505 4822 252 11215 Sparkgap 3507 4822 116 82776 2Ω2 3508 4822 117 13473 22k 5% 2.5W 3510 4822 116 82107 68k 5% 3W 3511 4822 117 12568 1k 7W 3512 4822 116 83933 15k 1% 0.1W 3513 4822 116 52252 180k 5% 0.5W 3514 4822 050 28204 820k 1% 0.6W 3516 4822 051 10102 1k 2% 0.25W 3517 4822 050 11002 1k 1% 0.4W 3518 3198 012 32270 0Ω22 3W 3520 4822 116 52304 82k 5% 0.5W 3521 4822 117 13577 330Ω 1% 1.25W

4822 052 10479 47Ω 5% 0.33W

3525

3528 4822 116 83868 150Ω 5% 0.5W 3529 4822 116 52199 68Ω 5% 0.5W 3530 4822 116 52269 3k3 5% 0.5W 3532 4822 116 83961 6k8 5% 3534 4822 116 83933 15k 1% 0.1W 3536 4822 116 52251 18k 5% 0.5W 3537 4822 050 21003 10k 1% 0.6W

4822 053 21475 4M7 5% 0.5W

3542

3543 4822 116 83874 220k 5% 0.5W 3544 4822 051 20273 27k 5% 0.1W 3545 4822 050 23303 33k 1% 0.6W 3546 4822 117 10834 47k 1% 0.1W 3547 4822 051 10102 1k 2% 0.25W 3570 4822 116 83933 15k 1% 0.1W 3570 4822 117 10833 10k 1% 0.1W 3571 4822 050 21504 150k 1% 0.6W 3571 4822 050 21604 160k 1% 0.6W 3573 4822 117 11951 2k 1% 0.1W 3574 4822 051 20333 33k 5% 0.1W 3575 4822 116 52175 100Ω 5% 0.5W 3577 4822 050 21003 10k 1% 0.6W 3578 4822 051 10102 1k 2% 0.25W 3579 5322 117 12487 1k1% 125mW 3585 4822 116 52175 100Ω 5% 0.5W 3592 4822 117 10833 10k 1% 0.1W 3594 4822 051 20223 22k 5% 0.1W 3595 4822 116 52297 68k 5% 0.5W 3596 4822 050 21003 10k 1% 0.6W 3597 4822 051 20101 100Ω 5% 0.1W 3598 4822 117 10833 10k 1% 0.1W 3599 4822 051 20223 22k 5% 0.1W 3603 4822 050 11002 1k 1% 0.4W 3604 4822 050 11002 1k 1% 0.4W 3605 4822 050 11002 1k 1% 0.4W 3607 2120 108 93916 8k2 3608 2120 108 93914 6x8k2 5% 3609 2120 108 93915 6x8k2 3611 4822 051 10102 1k 2% 0.25W 3612 4822 117 10833 10k 1% 0.1W 3618 4822 116 52175 100Ω 5% 0.5W 3619 4822 051 20472 4k7 5% 0.1W 3629 4822 051 20471 470Ω 5% 0.1W 3630 4822 116 83883 470Ω 5% 0.5W 3631 4822 051 20273 27k 5% 0.1W 3632 4822 053 12479 47Ω 5% 3W 3633 4822 116 52231 820Ω 5% 0.5W 3634 4822 117 11449 2k2 5% 0.1W 3635 4822 051 20223 22k 5% 0.1W 3636 4822 051 20223 22k 5% 0.1W 3637 4822 051 20472 4k7 5% 0.1W 3651 4822 116 52175 100Ω 5% 0.5W 3652 4822 116 52175 100Ω 5% 0.5W 3653 4822 050 21003 10k 1% 0.6W 3654 4822 051 20101 100Ω 5% 0.1W 3655 4822 051 20101 100Ω 5% 0.1W 3657 4822 116 83876 270Ω 5% 0.5W 3661 4822 116 52175 100Ω 5% 0.5W 3662 4822 051 20472 4k7 5% 0.1W 3663 4822 051 20822 8k2 5% 0.1W 3664 4822 051 20822 8k2 5% 0.1W 3665 4822 051 20472 4k7 5% 0.1W 3666 4822 051 20562 5k6 5% 0.1W 3667 4822 051 20273 27k 5% 0.1W 3672 4822 051 20472 4k7 5% 0.1W 3673 4822 117 10833 10k 1% 0.1W 3674 4822 051 20182 1k8 5% 0.1W 3675 4822 051 20471 470Ω 5% 0.1W 3676 4822 051 20471 470Ω 5% 0.1W 3677 4822 051 20471 470Ω 5% 0.1W 3680 4822 117 10361 680Ω 1% 0.1W 3681 4822 051 20332 3k3 5% 0.1W 3682 4822 051 20822 8k2 5% 0.1W 3683 4822 051 20101 100Ω 5% 0.1W 3684 4822 051 20332 3k3 5% 0.1W 3702 4822 117 11449 2k2 5% 0.1W 3703 4822 117 11449 2k2 5% 0.1W 3705 4822 051 20223 22k 5% 0.1W 3708 4822 116 52283 4k7 5% 0.5W 3841 4822 116 52175 100Ω 5% 0.5W 3842 4822 116 52175 100Ω 5% 0.5W 3843 4822 117 10834 47k 1% 0.1W 3844 4822 051 20471 470Ω 5% 0.1W 3845 4822 051 20471 470Ω 5% 0.1W 3850 4822 051 10102 1k 2% 0.25W 3850 4822 117 11449 2k2 5% 0.1W 3950 4822 116 52228 680Ω 5% 0.5W 3951 4822 051 20332 3k3 5% 0.1W 3952 4822 116 52175 100Ω 5% 0.5W 3953 4822 117 11507 6k8 1% 0.1W 3954 4822 051 20332 3k3 5% 0.1W 3954 4822 117 11139 1k5 1% 0.1W 3955 4822 050 21003 10k 1% 0.6W 3955 4822 116 52283 4k7 5% 0.5W 3956 4822 051 20332 3k3 5% 0.1W 3956 4822 117 11139 1k5 1% 0.1W 3957 4822 050 21003 10k 1% 0.6W 3957 4822 116 52283 4k7 5% 0.5W 4xxx 4822 051 10008 Jumper 4xxx 4822 051 20008 Jumper

Page 33

Spare parts list

GB 57L9.1E AB 10.

5000 4822 157 51216 5.6µH 5003 4822 157 11866 1.8µH 10% 5004 2422 535 97314 0U82 20% 5004 4822 158 10471 0.22µH 20% 5006 4822 157 11534 Ind Var 78MHz 5101 4822 157 11867 5.6µH 5% 5110 4822 157 11706 10µH 5% 5201 4822 157 50961 22µH 5202 4822 157 11139 6.8µH 5% 5202 4822 157 11813 3.3µH 5% 5202 4822 157 11868 2.7µH 5% 5202 4822 157 62767 8.2µH

3128 138 21151 TFM Lot Microslot

5445

3128 138 21161 TFM Line Output

4822 140 10665 TFM Lot Slot

5445

5451 4822 157 11869 33µH 10% 5457 4822 157 11671 Lineairity Coil Drum 5457 4822 157 11883 42µH 20% 5461 4822 142 40351 TFM 5463 2422 536 00048 Bridge Coil C957-02 Y 5465 4822 140 10509 Bridge Coil U15 5465 4822 157 71681 Coil 5470 4822 158 10728 Bridge Coil CU15 5471 3198 018 71020 1mH 5480 4822 156 20966 47 µH 5480 4822 157 70698 27µH 5480 5322 157 51687 Coil

4822 157 11523 DMF-2405

5500

5502 4822 157 10476 DMF-2820H 5516 4822 157 11411 Bead 100MHz 5518 4822 526 10704 Bead 100MHz 5521 4822 157 62552 2.2µH 5540 4822 157 11835 4.7µH 5%

4822 146 11152 Trafo W8019-003

5545

5550 4822 157 11411 Bead 100MHz 5551 4822 157 71401 27µH 5552 4822 526 10704 Bead 100MHz 5572 4822 157 11411 Bead 100MHz 5573 4822 157 11411 Bead 100MHz 5575 4822 157 11411 Bead 100MHz 5575 4822 157 60171 Bead 100MHz 5576 4822 157 11411 Bead 100MHz 5577 4822 526 10704 Bead 100MHz 5600 4822 157 62767 8.2µH 5601 4822 157 62767 8.2µH 5620 4822 157 11139 6.8µH 5% 5821 4822 157 50964 100µH 5831 4822 157 50943 12µH 5832 4822 157 50943 12µH 5833 4822 157 11743 12µH 5%

6003 4822 130 83757 BAS216 6004 4822 130 83757 BAS216 6008 4822 130 34142 BZX79-B33 6110 4822 130 10852 BZX284-C6V8 6113 4822 130 10852 BZX284-C6V8 6121 4822 130 11087 BZX284-C15 6122 4822 130 10852 BZX284-C6V8 6124 4822 130 10852 BZX284-C6V8 6125 4822 130 10852 BZX284-C6V8 6211 4822 130 30621 1N4148 6212 4822 130 30621 1N4148 6213 4822 130 30621 1N4148 6401 4822 130 42488 BYD33D 6402 4822 130 31024 BZX79-B18 6404 4822 130 34258 BZX79-B56 6449 4822 130 30621 1N4148 6450 4822 130 30621 1N4148 6460 9340 559 50112 BY228/24 6461 9340 559 53112 BYW95C-24 6463 4822 130 30621 1N4148 6465 4822 130 42606 BYD33J 6466 4822 130 42606 BYD33J 6470 4822 130 30862 BZX79-B9V1 6471 4822 130 30621 1N4148 6472 4822 130 30621 1N4148 6473 4822 130 34145 BZX79-B39 6473 4822 130 34383 BZX79-B47 6480 4822 130 34379 BZX79-B27 6481 4822 130 30621 1N4148 6485 4822 130 42606 BYD33J 6486 4822 130 10256 EGP20DL-5300 6487 4822 130 42488 BYD33D 6488 4822 130 10871 SBYV27-200 6490 4822 130 10871 SBYV27-200 6505 9322 132 55667 GBU4JL-7002 6507 4822 130 42606 BYD33J 6508 4822 130 42606 BYD33J

6510 4822 130 34499 BZX79-B20 6511 4822 130 41487 BYV95C 6512 4822 130 31083 BYW55 6513 4822 130 31083 BYW55 6514 4822 130 31024 BZX79-B18 6540 4822 130 30842 BAV21 6542 4822 130 30842 BAV21 6543 4822 130 83757 BAS216 6550 4822 130 10218 BY229X-800 6560 4822 130 10256 EGP20DL-5300 6570 4822 130 10256 EGP20DL-5300 6582 4822 130 10256 EGP20DL-5300 6584 4822 130 30621 1N4148 6585 4822 130 30621 1N4148 6590 4822 130 10256 EGP20DL-5300 6591 4822 130 83757 BAS216 6601 4822 130 31981 BZX79-B3V9 6602 4822 130 31983 BAT85 6606 4822 130 34174 BZX79-B4V7 6607 4822 130 34278 BZX79-B6V8

4822 130 10859 TLDR5400

6690

6701 4822 130 10414 BA792 6702 4822 130 10414 BA792 6831 4822 130 83757 BAS216 6951 4822 130 83757 BAS216 6961 4822 130 83757 BAS216

7130 5322 130 42755 BC847C 7131 5322 130 42755 BC847C 7132 5322 130 42755 BC847C 7133 5322 130 42755 BC847C 7134 4822 130 40959 BC547B 7250 4822 209 17221 TDA8844/N2/S1 7250 4822 209 17464 TDA8843/N2/S1 7250 9352 670 60112 TDA8845PS/N2 7251 4822 209 80591 LM317T 7254 5322 130 60159 BC846B 7256 5322 130 60159 BC846B 7258 5322 130 60159 BC846B 7263 4822 130 60373 BC856B 7266 5322 130 60159 BC846B 7401 4822 209 13176 TDA9302H 7401 4822 209 61117 TDA8172 7460 3139 120 51891 BU4508DZ 7460 9340 550 90127 BU4508DZ 7461 4822 130 42159 BF819 7470 4822 130 11336 STP16NE06FP 7480 4822 209 90008 L78M05CP 7481 4822 130 44568 BC557B 7482 4822 130 60373 BC856B 7518 9322 155 66687 STH10NC60FI 7520 4822 209 15684 MC44603AP 7542 4822 130 60373 BC856B 7570 4822 209 81397 TL431CLPST

4822 209 71634 TCDT1101G

7581

7590 5322 130 60159 BC846B 7591 5322 130 60159 BC846B 7592 5322 130 60159 BC846B 7600 9352 672 22112 SAA5564PS 7600 9352 672 23112 SAA5564PS 7601 4822 209 33113 ST24C08B6 7603 4822 130 40855 BC337 7604 5322 130 60159 BC846B 7605 5322 130 60159 BC846B 7608 5322 130 60159 BC846B 7609 5322 130 60159 BC846B 7680 9322 154 48667 TSOP2236 7701 5322 130 60159 BC846B 7702 5322 130 60159 BC846B 7833 9322 148 34682 MSP3415D-PP-B3 7950 4822 209 13646 TDA7057AQ/N2 9220 4822 157 11813 3,3µH 5%

[B] CRT Panel

Various

0141 4822 492 70788 IC Fixation 0244 4822 265 30734 Conn. 4P 0245 2422 025 04854 Conn. 6P

4822 267 20466 Coil

0254

2330 4822 121 51473 470nF 20% 63V 2340 4822 124 11565 10µF 20% 250V 2341 4822 126 13599 3.3nF 10% 500V 2342 5322 126 10733 680pF 5% 50V

4822 126 12278 3300pF 10% 2kV

2343

2345 4822 122 31175 1nF 10% 500V

3331 4822 116 52175 100Ω 5% 0.5W 3332 4822 117 11635 1k 10% 0.5W 3333 4822 116 52175 100Ω 5% 0.5W 3334 4822 117 11635 1k 10% 0.5W 3335 4822 116 52175 100Ω 5% 0.5W 3336 4822 117 11635 1k 10% 0.5W

4822 052 10109 10Ω 5% 0.33W

3340

3341

4822 052 10108 1Ω 5% 0.33W

3342

3343 4822 052 11152 1k5 5% 0.5W 3344 4822 116 52186 22Ω 5% 0.5W 3345 4822 117 13016 1M A/50V MAX 115V 3346 4822 116 52186 22Ω 5% 0.5W

5342 4822 157 50961 22µH

6331 4822 130 30842 BAV21 6333 4822 130 30842 BAV21 6335 4822 130 30842 BAV21

7330h9352 576 50112 TDA6107Q/N2

[E] Side AV Panel

Various

0021h3139 124 33221 Side AV Bracket

4822 267 31014 Headphone Socket

0232

0250 4822 265 11606 3P YKC21-5599 0253 4822 267 10735 Conn. 3P 0254 4822 267 10734 Conn. 5P 0255 4822 267 10565 Conn. 4P 0261 2422 025 12482 Conn. 6P

2171 4822 126 13512 330pF 10% 50V 2172 4822 126 13512 330pF 10% 50V 2173 4822 126 13512 330pF 10% 50V 2174 4822 126 13512 330pF 10% 50V 2176 4822 126 13512 330pF 10% 50V 2177 4822 124 40207 100µF 20% 25V 2178 4822 126 13512 330pF 10% 50V 2179 4822 124 40207 100µF 20% 25V

3150 4822 050 21003 10k 1% 0.6W 3151 4822 116 52303 8k2 5% 0.5W 3152 4822 050 21003 10k 1% 0.6W 3153 4822 116 52303 8k2 5% 0.5W 3155 4822 116 52201 75Ω 5% 0.5W 3156 4822 116 52219 330Ω 5% 0.5W 3157 4822 116 52219 330Ω 5% 0.5W

6161 4822 130 34278 BZX79-B6V8

[S] Smart ATS

3000 3198 013 01020 1k 2% 0.5W 3002

4822 053 21155 1M5 5% 0.5W

3002 4822 051 20562 5k6 5% 0.1W 3003 4822 117 10833 10k 1% 0.1W 3004 4822 117 10833 10k 1% 0.1W 3005 4822 051 20391 390Ω 5% 0.1W 3006 4822 117 10833 10k 1% 0.1W

7002 9336 500 90126 BC557C

Page 34

GB 58 L9.1E AB10.

[T] Top Control Panel (RF)

Various

0011 3139 137 66921 Top Control Button 0013 3139 124 30381 Top Control Bracket 0158 3139 110 38741 Cable 4P 820mm 0209 4822 267 10567 Conn. 4P 1680 4822 276 13775 Switch 1681 4822 276 13775 Switch 1682 4822 276 13775 Switch 1683 4822 276 13775 Switch

[T1] Top Control Panel (FSQ)

Various

0011 3139 137 76961 Top Control Assy 0158 3139 110 38741 Cable 4P 820mm 0209 4822 267 10567 Conn. 4P 0310 3139 124 26992 Top Control Bracket 1680 4822 276 13775 Switch 1681 4822 276 13775 Switch 1682 4822 276 13775 Switch 1683 4822 276 13775 Switch

[U] Mains Harmonic Panel

Various

0001 4822 265 20723 Conn. 2P 0003 4822 267 10775 Conn. 2P

4822 265 11253 Fuse holder

0127

0185

3139 124 33411 Mains Harmonic Bracket

2422 086 10914 Fuse 4A 250V

1000

Spare parts list

2001 4822 121 70141 33nF 5% 400V

4822 126 13589 470nF 275V

2002

5000 2422 549 44444 Mains Harmonic Filter

PHILIPS L9.1E-AB Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual