Philips L7.2E AA Service Manual

1

Colour Television Chassis

L7.2E

AA

CL 86532008_004.ai

160298

Service Manual

Table of contents Page

1 Technical specifications 2

Location of panels
2 Connection facilities 3
3 Safety instructions, Warnings 4

and Notes
4 Mechanical instructions 6
5 Repair facilities 7

Software adjustments

and Hotel mode
6 Fault finding tree 13

Block diagram, 14

Survey of testpoints 15

Diagram supply voltages survey 15
7 Electrical Diagrams and print lay-outs

Power supply diagram A1 16 17,19

Sync, Horizontal + Vertical output diagram A2 18 17,19

Tuner, IF,Video,Chroma diagram A3 20 17,19

Control diagram A4 21 17,19

Sound processing, Sound interfacediagram A5 22 17,19

CRT panel diagram B 23 23

Sound Multi-mono panel diagram C 24 25

Sound Nicam-2CS panel diagram D 26 25
8 Electrical adjustments 27
9 Circuit diagram description (new circuits) 29
10 Directions for use 32
11 List of abbreviations 36

Published by FM 9863 TV Service DepartmentPrinted in The NetherlandsCopyright reserved 1998 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 otherwisewithout the prior permision of Philips.Subject to modification5 4822 727 21567

12 Spareparts list 37

Diagram PWB

©

Copyright reserved 1998 Philips Consumer Electronics B.V. Eindhoven, The
Netherlands. All rights reserved. No part of this publication may be reproduced,
stored ina retrievalsystem ortransmitted, in any form or by any means, electron­ic, mechanical, photocopying, or otherwise without the prior permision of Philips.

Published by FM 9863 TV Service Department Printed in The Netherlands Subject to modification 5 4822 727 21567

2 L7.2E

1 Technical specifications

Mains Voltage: : 220 - 240 V AC

1 Technical specifications

: (+/- 10%)

Power consumption : 17” 50 W

: (stand by < 7 W)
: 21” 57 W

: (stand by < 7 W)
Pull in range colour sync : +/- 300 Hz
Pull in range horizontal sync : +/- 600 Hz
Pull in range vertical sync : 45 - 64.5 Hz

Location of panels

C

OR

D

MULTIMONO

NICAM,

AUDIO PANEL

MAIN

CRT

POWER SUPPLY
SYNCHRONISATION

HOR.DEFLECTION
VERT. DEFLECTION

TUNER IF
VIDEO PROCESSING

CONTROL
AUDIO SOURCE INPUT

AUDIO PROCESSING

B

A1
A2

A3

A4
A5

CL 86532008_005.ai

260398

2 Connection facilities

2 Connection facilities

3L7.2E

2.1 Cinch

IR Video

Red

EXT1

(Ext2)

L R

Audio

CL86532008_008.ai

++--

ChannelVolume

170298

4.5-7V:EXT 16:9

- Video 1Vpp/75Ω q

- Audio L(0.5Vrms ≥10kΩ) q

- Audio R(0.5Vrms ≥10kΩ) q

2.2 Head phone

- (32-600Ω≥10mW) ot

2.3 Euroconnector

1- Audio R (0.5Vrms ≤1kΩ) k
2- Audio R (0.5Vrms ≥10kΩ) j
3- Audio L (0.5Vrms ≤1kΩ) k
4- Audio v
5- Blue v
6- Audio L (0.5Vrms ≥10kΩ) j
7- Blue (0.7Vpp/75Ω)
8- CVBS-

status 0-1.3V:INT

9- Green v

9.5-12V:EXT 4:3 j

10­11- Green (0.7Vpp/75Ω)
12­13- Red v
14- RGB-

status v
15- Red (0.7Vpp/75Ω)
16- RGB-

status (0-0.4V:INT

1-3V:EXT/75Ω)
17- CVBS v
18- CVBS v
19- CVBS (1Vpp/75Ω) k
20- CVBS (1Vpp/75Ω) j
21- Earth

socket

4 L7.2E

3 Safety instructions, Maintenance instruction,

3 Safety instructions, Maintenance instruction, Warnings and Notes

3.1 Safety instructions for repairs

Figure 3-1

1. 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 (see fig.

3.1), should be replaced by components identical to
the original ones;

– when replacing the CRT, safety goggles must be worn.

2. 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.
– As a strict precaution, we advise you to resolder the

solder joints through which the horizontal deflection
current is flowing, in particular:

• all pins of the line output transformer (LOT);

• fly-back capacitor(s);

• S-correction capacitor(s);

• line output transistor;

• pins of the connector with wires to the deflection
coil;

• 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:

• unplugthe mains cordand connecta wirebetween
the two pins of the mains plug;

• set the mains switch to the on position (keep the
mains cord unplugged!);

• 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 MW and 12 MW;

• switchoff the TV andremove 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.

– 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 thefollowing actions:

• Execute the above mentioned 'general repair
instruction'.

• Clean the power supply and deflection circuitry on the
chassis.

• Cleanthe picture tube panel and the neck of the picture
tube.

3.3 Warnings

1. ESD
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.
– Available ESD protection equipment:
– anti-static table mat (large 1200x650x1.25mm) 4822

466 10953

– anti-static table mat (small 600x650x1.25mm) 4822

466 10958
– anti-static wristband 4822 395 10223
– connection box (3 press stud connections, 1 M ohm)

4822 320 11307
– extension cable (2 m, 2 M ohm; to connect wristband

to connection box) 4822 320 11305
– connecting cable (3 m, 2 M ohm; to connect table mat

to connection box) 4822 320 11306
– earth cable (1 Mohm; to connect any product to mat or

connection box) 4822 320 11308
– complete kit ESD3 (combining all 6 prior products -

small table mat) 4822 310 10671
– wristband tester 4822 344 13999

2. In order to prevent damage to ICs and transistors, all high­voltage flashovers must be avoided. In order to prevent
damage to the picture tube, the method shown in Fig. 3.2
should be used to discharge the picture tube. Use a high­voltageprobe and a multimeter (positionDC-V). Discharge
until the meter reading is 0V (after approx. 30s).

3. Togetherwith the deflection unit and anymultipole unit, the
flat square picture tubes used from an integrated unit. The
deflection and the multipole units are set optimally at the
factory.Adjustmentofthisunit during repair is therefore not
recommended.

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

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

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

7. Wearsafety goggles during replacement ofthe picture tube

3.2 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.

3.4 Notes

1. The direct voltages and oscillograms should be measured
with regard to the tuner earth , or hot earth as this is called
(see fig. 3.3)

2. The direct voltages and oscillograms shown in the
diagrams are indicative and should be measured in the
Service Default Mode (see chapter 8) with a colour bar
signal and stereo sound (L:3 kHz, R:1 kHz unless stated
otherwise) and picture carrier at 475.25 MHz.

3 Safety instructions, Maintenance instruction,

3. Wherenecessary, the oscillograms and directvoltages are
measured with and without aerial signal. Voltages in the
power supply section are measured both for normal
operation and in standby . These values are indicated by
means of the appropriate symbols (see fig. 3.3).

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

5. 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.

V

CL 26532098/042

140792

Figure 3-2

5L7.2E

tuner earth

tuner aarde
la masse du tuner

Tuner-Erde
massa del tuner
tierra del sintonizador

with aerial signal
met antenne signaal

avec signal d'antenne

mit Antennensignal
con segnale d'antenna
con la señal de antena

normal condition

normaal bedrijf
fonctionnement normal

normaler Betrieb
funzionamento normale
funcionamiento normal

massa calda

zonder antenne signaal

Figure 3-3

hot earth

hete aarde
la terre directe
heißen Erde

tierra caliente

without aerial signal

sans signal d'antenne

.ohne Antennensignal
senza segnale d'antenna
sin la señal de antena

stand by

stand by

position de veille

in Bereitschaft
modo di attesa
posición de espera

6 L7.2E

4 Mechanical instructions

For the service position of the main carrier see Fig. 4.1.
The main carrier can be removed by releasing the 2 carrier
blocking lips (1) and pulling the carrier panel backwards.

4 Mechanical instructions

1

11

B

A

CL 86532008_007.ai

160299

Figure 4-1

5 Repair facilities

7L7.2E

5 Repair facilities

5.1 Test points

The PWB boards have service printing on both sides. In the
service printing test points are included. These test points are
referring to the electrical function as mentioned below:

Test pointElectrical function

• A1,A2, etc.: Audio

• C1,C2, etc.: Control

• F1,F2, etc.: Frame drive and frame output

• L1,L2, etc.: Line drive and line output

• P1, P2,etc.: Power supply

• S1,S2- etc.: Synchronisation

• V1,V2, etc.: Video

The numbering is done in a for diagnostics logical sequence.

Example: Checking the power supply, start with test point P1,
P2 etc.).

5.2 Service mode

The service mode is split into two parts:

– Service Default Mode (SDM).
– Service Alignment Mode (SAM).

– For Multi-Europe setsPAL-BG
– For Multi-France setsSECAM-L

Tuning:

– For sets with VST tuner: Programme number 1is selected .

Further settings:

– The automatic switch off (no IDENT) timer and the sleep

timer will be ignored.
– The child lock will be disabled.
– If the TV set was in hotel mode, this mode is disabled as

long as the TV is in SDM or SAM mode.
– Brightness, saturation, sharpness, contrast and balance

are initialised on 50% level.
– The volume is set to 25% level.
– The TV set is normally controllable.
– All displayed text in SDM and SAM menu are in English.

5.4 SDM (Service Default Mode)

5.4.1 SDM menu

Below in Fig.6.1 an example of the SDM menu is shown.

Between clamps a short explanation of each item is added.

5.2.1 Entering and leaving SDM and SAM

1. Entering SDM

• To entry the SDM , there are two possibilities:
– Via the "DEFAULT" button on the DST (Dealer

Service Tool)

– Via short circuiting the service pins 0025 and 0024

(mass), while switching on the set via the mains
switch. For 0025 and 0024 see Diagram A4 and
the PWB drawing of the main panel.

• Inthe SDM mode aS (in green) and the SDM menu(in
red) is displayed.(see Fig.6.1).

2. Entering SAM

• To entry the SAM , there are two possibilities.
– Viathe "ALIGN" button on the DST (Dealer Service

Tool)

– Via short circuiting the Service pins M28 and M29

(mass), while switching on the set via the mains
switch. For M28 and M29 see Diagram A4 and the
PWB drawing of the main panel.

• In the SAM mode a S (in green) and the SAM main
menu (in red) is displayed.(see Fig.6.2).

Remark: After the set is in the SDM or SAM mode the short
circuit can be removed.

001E 2.17.6 S
(life timer) (software

indication)

AS ON
(option abbreviation) (option status)

ERR 0 0 0 0 0
(error) (error buffer)

OPT 36C8 B805 2401
(option) (12 digit option

code)

Fig.6.1

(service mode
indication)

5.2.2 Leaving SDM or SAM

To leave the SDM or SAM mode , push the stand-by button on
the remote control

Remark:After switching off and on bythemains switch , the set
remains in the SDM or SAM mode.

5.3 Initial states

The initial state after switching on in the SDM or SAM mode is:

System:

Below a more detailed information of each item is given

5.4.2 Life timer

The indication is in hexadecimal notation. Each hour the set is
switched on (not standby) the number is incremented by 1.
Also each time the set is switched on the number is
incremented by 1.

8 L7.2E

5 Repair facilities

5.4.3 Software indication number.

For each software change this number will be changed.

5.4.4 Service mode indication.

The S indicates that the set is in SDM or SAM mode.

5.4.5 ERROR and ERROR buffer

(ERR refers to the "ERROR BUFFER")

00000 represent the contents of the so called "ERROR
BUFFER". This buffer consist of 5 digits. In each digit an
ERROR code can be displayed. The last five errors, are stored
in the EEPROM, and are shown in this buffer. An error will be
added to the buffer if this error differs from the last error in the
buffer. The last detected error is displayed on the most left
digit.

Example: Suppose the display shows: 3 4 1 3 1. This means
the last found error is error code 3; the last found error but one
is error code 4, etc.

Remark: The ERROR BUFFER is erased when the set is
switched from SDM or SAM in stand by , or via code 99 via
DST.(Dealer service Tool).

5.4.7 Option abbreviation and Option status.

To select another option abbreviation use the MENU UP/
DOWN buttons and to change the status use the MENU LEFT/
RIGHT buttons.

Elucidation:

With above items the option statuses stored in the EEPROM
can be changed.

This is necessary if the EEPROM is replaced by a fresh
EEPROM, because a fresh EEPROM is initial loaded with
default options and statuses by the microcomputer. The
options stored in the factory can differ per type and stroke
number. Therefore it is necessary to load the EEPROM with
the correct statuses These options with statuses are indicated
on a sticker glued on the CRT. For an example of the sticker
see table 6.1 (this table is valid for 21PT1663/00).

Table 6.1

Option abbreviation Status
AT ON
AV ON

The following error codes have been defined:

Error code Error description Possible defective

0 No error
1 Internal RAM error

of æC
2 General I2C error
3 EEPROM

Configuration error

(Checksum error)
4 I2C error audio

processor
5 I2C error TV

processor
6 EEPROM error ST24C04
7 I2C error PLL tuner PLL tuner
8 POR bit high (43-

IC7600)

omponent

IC7600

Set not correct
configured

MSP3410 on
NICAM panel

TDA8373/74

BA ON
BL ON
CO OFF
GM ON
HO ON
MT PH
PG ON
PR 99
SA ON
SB IN
SP ON
SS ON
SU ON
SY EW
TR ON
UH OFF
VI OFF

5.4.6 ERROR code indication via blinking stand by LED

The ERROR codes 2, 5 and 8 are also indicated via blinking of
the stand by LED. This is important if no OSD function or
picture is available.

The method is to show LED blinks as many as the error code.

Example: Error code 5 will result in five blinks ( 0.25 seconds
ON and 0.25 seconds OFF).

After this sequence the LED will be OFF for 3 seconds.

XT ON

(Table only valid for 21PT1663/00)

Loading a fresh EEPROM

– Switch on the TV via the power switch.
– Audio mute the TV (to get no big noise).
– Change the option statuses as indicated on the sticker on

theCRT.
– Put TV in stand by via the remote control.
– Switch on the TV again via the remote control.

5 Repair facilities

9L7.2E

– Switch OFF the TV via the power switch
– Switch on the TV again via the power switch.

In table 2 all the possible option abbreviation with full option
name and possible statuses for "Europe" sets are listed. The
status can be "ON", "OFF" or can have another indication.

Table 2 : Options

Option abbr Option full name Status possibilities
AT Auto tuning system ON/OFF
AV AVL ON/OFF
BA Bass ON/OFF
BL Balance ON/OFF
CO Clock In Menu ON/OFF
GM Game mode ON/OFF
HO Hotel mode ON/OFF
MT Menu type PH = Philips

5.4.8 OPTION code

OPT is the abbreviation of OPTION, this abbreviation refers to
the following 12 digit hexadecimal option codes (36C8 B805

2401)

The option code can not be selected. It only give a quick
indication in hexadecimal form of the options settings of the
relevant set.

5.5 SAM (Service Alignment Mode)

Via the SAM, service software alignments can be executed.

When entering SAM a main menu is displayed Via the main
menu sub menus can be selected.

5.5.1 SAM main menu (see Fig. 6.2)

In the main menu the items of the basic software alignments
are indicated.

Theitems can be selected withthe UP(+)/DOWN(-) arrow keys
on the remote control. Entry into the sub menus is executed
with the VOL.(+)/VOL.(-) arrow keys.

SAM MAIN MENU
NB = National brand
MV = Magnavox

PG Program guide ON/OFF
PR Presets 99

59
79

SA Spatial ON/OFF
SB Sound Board IN = ITT NICAM

IT = ITT 2CS
MA = MONO ALL
MM = Multi Mono

SP Smart picture ON/OFF
SS Smart Sound Full ON/OFF
SU Surf ON/OFF
SY System Cluster EW = Europe West

EE = Europe East
EM = Europe

Manual
SS = Single System

TR Treble ON/OFF
UH UHF only ON/OFF
VI Virgin Mode ON/OFF
XT EXT 2 Available ON/OFF

S

AKB ON
TUN.FOA ON
TUN.FOB ON
EXT.FOA ON
EXT.FOB OFF
TUNER >
WHITE TONE >
GEOMETRY >

Fig.6.2

Below each item is explained.

5.5.2 AKB (Auto Kine Biasing)

With the option AKB the "black current loop" can be enabled

or disabled

ON =enabled, OFF = disabled.

5.5.3 TUNER Speed setting.

With the items TUN.FAO and TUN.FOB the speed ( time

constant) for internal signals is set. The speed can be set to

normal, slow or fast.

Table 3: Options for Tuner Speed settings

10 L7.2E

5 Repair facilities

5.5.6 White tone

TUN.FOA TUN.FOB Speed
OFF OFF Normal
OFF ON Slow
ON X Fast

5.5.4 EXTERNAL A/V Speed setting

With the items EXT.FAO and EXT.FOB the speed ( time
constant) for external signals is set. The speed can be set
normal, slow and fast.

Table 4: Options for External AV Speed settings

EXT.FOA EXT.FOB Speed
OFF OFF Normal
OFF ON Slow
ON X Fast

5.5.5 Tuner

Below an example of the sub menu Tuner is shown.

Below an example of the white tone sub menu and the derived
"WARM", "COOL" and "NORMAL" sub menus are given. With
these menus the WARM, COOL and NORMAL colour
temperatures can be changed.

MAIN WHITE TONE MENU

S

WARM <
COOL <
NORMAL <

WARM TEMPERATURE SUB MENU

WARM S

RED 39

Tuner S

AGC 23
F-PLL 3
IF PLL L' 0
AFW 240 KHz
AFA 0
AFB 1

Item AGC:

For the setting of the item AGC see RF AGC adjustment
paragraph 8.1.4 of chapter 8.

Item IF-PLL, IF-PLL L ACCENT, AFW, AFA and AFB,

When the main signal processor IC TDA8373/74 is changed,
the IF-PLL and IF-PLL L ACCENT need to be realigned

GREEN 39
BLUE 25

COOL TEMPERATURE SUB MENU

COOL S

RED 39
GREEN 39
BLUE 25

NORMAL TEMPERATURE SUB MENU

NORMAL S

RED 39
GREEN 39
BLUE 25

Forthe settings of IF-PLL, IF-PLL L ACCENTandAFW see the
picture demodulator adjustments paragraph 8.1.5 of chapter 8.

Remark: AFA and AFB are adjusting indicators and therefore
not selectable.

Remark:

Only one of the 3 items (RED, GREEN or BLUE) will be
displayedonthescreen.Via"scrollingwiththeUP/DOWN keys
the items can be changed.

The item's red, green or blue can be changed by first pressing
the control left/right keys to highlight the desired setting. With
the desired setting high lighted, the user can increment or
decrement the setting by using the control up/down key. All

5 Repair facilities

11L7.2E

changed data are stored into the EEPROM after returning to
the SAM main menu via the OK key.

The initial default value for all setting is 37.

The factory settings of the colour temperatures are:

WARM; R = 45, G = 32, B = 26

NORMAL; R = 37, G = X, B = Y

COOL; R = 37, G = 32, B = 31

Remark: In NORMAL position the values X (G) and Y (B) are
adjusted for 8500K colour temperature.

5.5.7 GEOMETRY

The geometry menu contains the following information:

S

HSH 25
VSL 32
VAM 23

– All software is suspended till the DST mode is left.

– The dealer mode status is left if the stand-by command is

received

5.7 Hotel-mode

Entering the hotel-mode :

– Select channel 38

– Push the menu button on the local keyboard (vol. + & vol.

- ) and the OSD-button of the RC simultaneously for 3
seconds.

– The screen shows the "HOTEL MODE SUB MENU "ON".

Via this menu the wanted blanked channels can be
selected.

Leaving the hotel mode :

– Same as entering the hotel mode.

– The screen shows the "HOTEL MODE SUB MENU "OFF".

Remarks:

– In the HOTEL mode the Installation menu cannot be

entered.

– When entering the hotel mode the maximum volume will

be the current value.

– The set will always switch to a selectable channel when

set is switched on.

SC 13
VSH 27

Uponenter into the picture geometry menu, thefirstitem will be
highlighted.

The value can be incremented or decremented by pressing the
control right or left key.

Therestof the parameters can be scrolled through by usingthe
control up/down keys.

All changed data will be stored into the EEPROM after
returning to the service main menu via the OK key.

Abbreviation explanation

– HSH - Horizontal shift
– VSL - Vertical linearity
– VAM - Vertical amplitude
– SC - S-correction
– VSH - Vertical shift

5.6 Use of Dealer Service Tool (DST)

With the SDM, under mentioned extra service features can be
executed

HOTEL MODE SUB MENU "ON"

38 HOTEL ON

EXIT >
HOTEL CHANNEL 38

HOTEL MODE SUB MENU " OFF "

38 HOTEL OFF

– Direct entering SDM via the "DEFAULT" button on the

DST.
– Direct entering SAM via the "ALIGN" button on the DST.
– Incase of no (OSD)picture theerror buffercan be readout

using the "BLINKING LED"procedure (see also paragraph

6.7) by pressing the "DIAGNOSE" button on the DST.

Remark:

– Entry of the SDM and SAM via the DST is possible in all

states, except from stand-by.

Remark: The Hotel mode can only be activated if the Hotel
mode option status (HO=ON), see table 2.

12 L7.2E

5 Repair facilities

Check:

- R3451 [A2]

- R3449 [A2]

No

Reference

[A1] Diagram

13L7.2E

THE TV. SET

SWITCH - ON

No picture

Sound OK

No Sound

No picture

Reaction on RC

Over voltage protection

Yes

>2v5?

Peak voltage

at pin 6 IC7520 [A1]

LED

No

No

ON ?

Continuously

is OK ?

Voltage

+13V, -13V (Lot)

<2v5?

Voltage

at pin 14 IC7520 [A1]

Check:

D6540, L5540 [A1]

"Take-over circuit"

No

No

Yes

Check:

LED Blinking?

(not error codes)

Yes

Check:

"Primary circuit sensing

"Feedback loop"

D6537, R3541 [A1]

Yes

No

LED reaction on RC

Check:

Heater voltage [A2]

Check:

+8V supply

FM / CVBS

Check:

Horz. cicuit

No

Check:

D6445 [A2]

TS7445 [A2]

mode?

Set in Hick-up

Check:

IC7401 [A2]

Vertical defl. problem

FET7518 [A1]

No

No

present?

Voltag on C2508 [A1]

Yes

Check:

R3500 [A1]

TS7518 [A1]

FUSE Item 1500 [A1]

Check:

+5V (supply control)

FUSE Item 1560 [A1]

Check:

No

IC7520? [A1]

Voltage at pin 1

R3510 [A1]

D6510 [A1]

Yes

Yes

IC7520? [A1]

Pulses at pin3

Check:

R3525 [A1]

R3517 [A1]

No

Replace IC7520 [A1]

FET7518 [A1]

No Sound

No picture

Reaction on RC

Yes

Check:

"Protection mode".

Set in "Stand-by" or

Stand-by circuit

+8V, VFL, Flyback

+13V (LOT), IC7541

Yes

Check:

D6445 [A2]

FET7518 [A1]

TS7445 on Shortcircuit [A2]

whiteSnowB/W

+160V

Check:

Tuner

Check:

Check:

Vertical

Check:

Horzontal

Check:

C 2205 [A3]

R3470 [A2]

+9V

Voltage

Pin 6 [A3]

Defl.circuit

IC 7401 [A2]

Defl.circuit

D 6441 [A2]

D 6445 [A2]

TS 7445 [A2]

R 3234 [A3]

R 3254 [A3]

D 6560 [A1]

IC 7541 [A1]

6 Fault finding, Block diagram

6 Fault finding, Block diagram

86532008_001.AI

120298

PANELS

SYSTEM

-

AUDIO

DIFFERENT

C

MONO

-

MULTI

C

MONO

MULTI

A5

A5

0033

M 11

0130

7501-2B

7505‚7507

1501 7501-2A

A5

0030

0030

D

0130

0088

NICAM

0022

0033

0022

A5

A5

A5

M 9

AM

M 9

M 11

8

DET.

7511,7514

0030

0130

6

AUDIO OUTPUT

7402

TDA7056B (3WATT)

3

BASS

TRBLE

7508‚7510

12345

12345

+ R

8

AMPLIFIER

PROC.

˜˜˜

+8V

19

N C

MOD_L_IN1

+13V/+9V

123456789

0022

123456789

M 9

INT/EXT

+10V/14V

(A4- 48)

A3

3141

55

FM

AUDIO

7225_6F

7225 - 5E

1

A5

1101

14L7.2E

123456789

0033

1236789

4

M 11

SCL

LEFT_OUT

RIGHT_OUT

(A4 - 40)

(A4 - 38)

(A4 - 37)

CVBS EXT1 (A3-18)

2018161412

2119171513

SCART

CVBS - OUT(A3-29)

5

SDA

(A4 - 39)

BL TXT1 OSD(A3-27)

+8V

R TXT OSD(A3-26)

10

11

101112131415161718

CVBS_SOUND

MOD_L_IN2

MOD_R_IN2

(A3 - 34)

(A4-80)

864

10

97531

11

G TXT OSD(A3-25)

13141516171819

L - EXT 1

AV1/AV2/AVL

MONO/STROB/BG-L

(A3 - 31) IF

(A4 - 45)

(A4 - 43)

CHROM2-STATUS

MOD_L_IN1

2

B TXT OSD(A3-24)

LEFT OUT(A5-37)

SIF/FM

MOD_R_IN1

MOD_R_IN1

RIGHT OUT(A5-38)

SOUND-PROCESSING VIDEO-INTERFACE SOUND-INTERFACE

A 5

(A1 - 2)

(A3 - 21)

SDA

V-TUNE

(A3 - 33)

(A3 - 34)

VOLUME

(A5 - 51)

(A3 - 13)

SCL

0025

7620

BG-L

/

STOBE

/

MONO

(A5 - 43)

(A3 - 22)

SERVICE

DK

/

BG

-

or

-

L

/

BG

(A5 - 36)

(A3 - 40)

SDM

MODE

0024

EEPROM

SW

-

STR

-

BLACK

(A5 - 23)

(A3 - 80)

1670

RESET

7603

REMOTE

RECEIVER

CHROMA-2 / STATUS

RC5

+5 VD

C6

101112

101112

AVL

LL

2/

/

AV

EXT

STA

/

/

1 -

SID

AV

TREBLE

INT

(A5 - 52)

(A5 - 48)

(A5 - 45)

(A5 - 49)

X - TAL

7601

(NONTXT)

BASS

(A5 - 50)

HZ

12M

30

48K

13

13

(A3 - 12)

C3

+5 VD

C2

C1

525150494847464544434241394038

42414039383736353433323129

123456789

123456789

CONTROL

A4

6 Fault finding, Block diagram

(A4 - 54)

STANDBY

7681

28

151416

OCAL

L

(A2 - 9)

(A2 - 10)

VFL

FLYBACK

36

37

27

1718192021 32

1718192021

KEYBOARD

BS 1(A3 - 43)

(A3 - 35) CVBS - SOUND

(A3 - 27)

(A3 - 26)

OSD

OSD

_

_

TXT

TXT

_

_

R

BL

BS 2

STANDBY

(A3 - 43)

(A1 - 3)

Ω/3W

16

4

CONN

HEAD PHONE

- L

- R

+ L

EARTH

5

TREBLE

BASS

MONO_OUT

VOLUME

(A4- 49)

(A4- 50)

(A4- 51)

15

2

DET

˜˜˜

(A4 - 36) BG/L - D - BG/DK

(A3 - 25)

(A3 - 24)

OSD

OSD

_

_

TXT

TXT

_

_

B

G

333435

31

2223242526

LED

0028

SERVICE

(A4 - 54)

Ω/3W

16

123

6

SID/STA/LL'

(A4- 52)

5128

NC

302928

7600 (TXT)

23

24

0029

SAM

MODE

2130

SAA5297

252622

27

64K

TXT

-

CVBS

(A3 - 28)

MODULE

CRT

B

IF

/

UNER

T

A 3

V 3

7225 - 5B

(A5- 17)

(A5 - 18)

(A5 - 32)

(A5- 35)

(A5 - 34)

I F (A5 - 31)

+5.5V+9V

CHROMA

/

VIDEO

V15a V16a

7255

( Y )

28

Y

TDA8373/74

13

CVBS -OUT

+8Vb

40039011

CRT

G

0177

077

V 14V 13

27

7225 - 5C

TDA8373/74

V 11

11

TDA4665

V 4

(B - Y) _ OUT

17

-INT

CVBS - EXT2

CVBS -EXT1

CVBS -SOUND

7215

5260

R

G

V16b

R

7302/7307/7306

GRB

12354

12354

212219

20

GRB

DOS

Blank

R G B

G- Y

C

2

MATRIX

I

8

32

31

12

V 12

-(R-Y)

-(B-Y)

64uS

64uS

V 5

(R - Y) _ OUT

V6

293033

PAL/NTSC

DECODER

38 35 34

SY

10

11

CVBS

+8Vb

7200

+8Vb

3216

6

I 1

34

DET

VIDEO

7225 - 5A

TDA8373/74

48

49

˜˜˜

1015

11

10

I 2

6

3010

!

UV 1300

B

V16c

7301/7304/7305

V15b

V 15

18

23

25

38

7

9

-(R-Y)

ADD FOR SECAM

REF

7241

TDA8395

+8Va

4.43MHz

1275

I6

3202

6MHz

1207

5.5MHz

1206

7214

54

RF-AGC

1

92

354

25kV

B

V15c

7265

BLACK CURRENT

26

24

10

-(B-Y)

INDENT

CHROMA

1

16

7204

V2

or

6MHz

1208

6.5MHz

3217

˜

I 3

I 5

TUNE

V -

SCL

SDA

ONLY FST

(A4 - 13)

(A4 - 12)

3341

7303/7308/7309

BCI

BL-TXT-OSD

R-TXT_OSD

G

TXT_OSD

-

B

TXT_OSD

-

BLACK

STR-SW

-

SCL
SDA

SAND-CASTLE

3

3208

-1

SWITCH

AND

B

BS 1

ONLY VST

(A4 - 15)

+160V

CVBS-TXT

CVBS-OUT

BS 2

(A4 - 14)

15

FOCUS

EHT

V

VG2

0166

FF

FF

!

(A2 - 11)

(A4 - 27)

(A4 - 26)

(A4 - 25)

(A4 - 24)

(A4 - 23)

(A4 - 22)
(A4 - 21)

(A2 - 30)

(A4 - 28)

(A5 - 29)

(A5 - 33)

321

321

E H T

OCUS

F

VG2FOCUS

VG2

V

E H T

25K

!

54457445

2470

1

6470

+160V

L 1

(A5 - 18)

(A2- 1)

DISCHARGE

6420

!

!

P1

!!!

!

6445

BUT11AX

3447

L 2

3444

1571

5570

5545

6502/05

5500

SK 1

3442

7440

FLYBACK

+8V

2420

10

7

2508

AC

1500

3470

0055

7441

SANDCASTLE

!

SYNC

P11

T 1.6 A

5572

11

4

T 4 AL

220V˜

2

3443

L 3

3430 3440

3405

+10V / 14V

6570

DC

FF

FF

M 6

HORIZONTAL

+14V+95V

(A2 - 8)

DEFLECTION

SYNC - HORZ. & VERTICAL

A 2

7420/7421

MAINS SUPPLY

A1

7

1

BCI

(A2 - 6)

+13V

3450

2460

8

DEFECTION

HORZ.

3461 2469

2571

7518

STP6N60FI

(A2 - 6)

BCI

2

2450

37

42

7225 - 5D

TDA8374

P10

12

P3

D

G

7520

MC44603AP

(A2 - 7)

+95V

6550

(A3 - 11)

2462

G

SYNC

BAT

V

5573

S

P4

40

43

+95V

+5,5V

+9V

+13V

L 12

L 10

L 11

2452

6454

!

3450

9

10

VERTICAL

L 4

47

44

16kHz

41

S 1

SANDCASTLE

(A2 - 8)

(A3 -38)

+95A

5551

P13

6480

7480

2480

6481

!

3480

4

L 6

2443

L 7

6443

6449

!

!

3451

5

3449

6

3

M 4

263

TDA9302H

BCI

(A2 - 7)

7541

TDA8139

2

5

+

7

3415

DISCHARGE

(A1 - 1)

+8V

0V6 STB

2563

9

8

2

Op.Amp

1

3417

3

VERT.

1

F 3

-

P14

2562

4

DEFECTION

4

F 2

(A4 - 2)

RESET

P12

!

F 4

6468 2463

+13V

7401

F 1

46

50

HZ

G

50

3435

52

51

+5V

+14V

P15

120198

-13V

86532008_002.ai

2453

(A5 - 9)

VFL

3411

(A4 - 3)

STANDBY

2551

2561

6560

14

16

13

15

1

2

3518

!

3525

P8

3

UFFER

B

SC

O

!

6540

3541

2540

2537

3538 6537

3528

P9

2

7

8

14

3540

BAT

+95V

Adjust

V

4

C

µ

µ

µ

µ

µ

µ

µ

D

AUDIO PANELS

2M9

P11

+10V / 14V

6570

!

1571

5570

10

!

5545

7

P1

6502/05

!!

0011

A1 MAINS SUPPLY

+10V / 14V

+8V

T 1.6 A

2508

AC

1500

6M11

5572

T 4 AL

2571

Mains

A4

CONTROL

11

4

+33V

Tuning voltage

3617

50-7225-5D

(for protection)

CIRCUIT

DISCHARGE

7420.7421

6420

DC

6610

!

7518

A3

!

IF & VIDEO

P10

12

P3

D

G

STP61160FI

P4

7520

+8VB

+8VA

3234

5203

5201

+95V

BAT

V

6550

5550

14

S

!

7520

MC44603AP

A2

6451

2 - 5445 (LOT)

LINE OUTPUT STAGE

+95A

5551

2551

16

3518

3525

3

BUFFER

Control

+8VC

P13

6560

IC

+8V

!

3447

3430

+14V

6540

A5

SOUND PROCESSING

+5V

P15

13

!

6537

3528

2

7541

14

4

+8V

2563

TDA8139

2561

15

A4

D

+5V

33 - 7600

19 - 7600

5601

CONTROL

P14

9

2

1

3541

P9

3540

STANDBY

RESET 1

2562

+8V

P12

8

6

4

2

+95V

Adjust

BAT

V

B

+160Va

Anode CRT

!

3341

FOCUS GRID

1-0166

+160V

6470

FOCUS

E H T (25kV)

2470

2

BAT

V

+95V

VG2 GRID

VG 2

+14V+95V

CRT PANEL

L 8

3470

!

5445

A2 SYNC - HORZ & VERTICAL DEFL

Filement CRT

0003

2-0166

3-0166

FF

FF

+13V

VG2FOCUS

3460

2460

9

BUT11AX

3442

L 2

7440

G

7441

40

10

DEFECTION

HORZ.

3443

L 3

16kHz

HOR

DRIVE

8

1

7

L 1

7445

3447

3444

L 4

3430

+8V

37

!

7225-5D

TDA8373/74

A3

3010

4003

TUNER

+5,5V

L 11

2452

6454

!

3450

3

BCI

Discharge (from A1)

50

42

{

INPUTS

Protection

+VB

!

9011

+9V

L 10

7480

6481

!

3480

4

2480

A2

200298

2 - 7401

4 - 7401

-13V

2453

(from 3-7401

vertical output,

see diagram A2)

86532008_003.AI

FRAME OUTPUT

+13V

L 12

6480

2443

L 7

6443

6449

!

!

3451

6

+13V

16

Protection

3449

VFL

37

{

INPUTS

5

7600 (µp)

A4

15L7.2E

6505

7600

0.5V / div DC

0.5V / div DC

5V / div AC

2508

P3

2

7541

P13

µC

5ms / div

5µs / div

1ms / div

7520
D

7518

SG

8

9

P14

P15

AUDIO

PANEL

(5- 7401)

F3

(3 - 7520)

P4

(52 - 7600)

C1

5V DC

P9

14

3

1

P4

V9

16
1

7255

5ms / div

(7- 7401)

F1

(7 - 5545)

P1

(1 - 7225 - 5E)

A1

(1 - 7401)

0.5V / div DC

F2

(S - 7518)

5ms / div

100V / div DC

P3

(55 - 7225 - 5E)

0.1ms / div

0.1V / div AC

A2

sk1

1500

P1

0024

SDM

0025

7620

6600

EEPROM

C1

Main panel (component side)

C6

C3

C5

C2

50

49

27

42

41

152

0028

SAM

26

0029

6 Fault finding, Block diagram

7241

V10

5ms / div

(3 - 7401)

20V / div DC

F4

5ms / div

(C - 7445)

10V / div DC

L1

(3445 / 3442)

20µs / div

100V / div DC

L2

(E- 7440)

20µs / div

2V / div DC

L3

(40 - 7225 - 5D)

20µs / div

2V / div DC

L4

(2M7)

20µs / div

2V / div DC

V14

(3 - 7520)

5µs / div

2V / div DC

P4

(50 - 7600)

C2

3445

L2

B

E

P6

10

7

P8

P11

6570

2571

2561

V7

161

V6

14

12

C

7445

7441

3540

L3

6444

2551

2448

2562

6550

6550

P10

2452

V14

V13

8

L7

V3

28113

7225

29

30

V4

V2

V5

6481

2480

A3

V1

15

405641

38

L4

S1

0077
1

5

V15

V11

V12

11

8

5

V8

5µs / div

(10 - 7520)

2V / div DC

P6

(49 - 7600)

5ms / div

1V / div DC

C3

B

E

C

L1

LOT

6454

2453

L6

I1

A1

6

F2

L11

6443

1

F4

2443

6449

357

L12

F3

F1

TUNER

7401

5µs / div

(7 - 7520)

1V / div DC

P8

(42 - 7600)

5ms / div

1V / div DC

C6

(13 - 7225 - 5B)

V1

0166

0004

V16a

B

R

G

V16c

V16b

CRT panel (track side)

5µs / div

(14 - 7520)

0.5V / div DC

P9

(30 - 7225 - 5B)

0.5µs / div

1V / div DC

V5

(38 - 7225 - 5B)

20µs / div

1V / div DC

V2

1

3

0322

8

0003

1

0177

5

170298

CL86532008_009.ai

V15bV15a

V15c

(12 - 7225)

5µs / div

0.5V / div DC

V12

(11 - 7225 - 5B)

20µs / div

0.5V / div DC

V6

(28 - 7225 - 5B)

20µs / div

1V / div DC

V3

(41 - 7225 - 5D)

S1

(Green)

V16b

(4M7)

V15a,b,c

(PAL)

3.5V DC

(3M7)

20µs / div

0.5V / div DC

V13

(11 - 7255)

V11

(29 - 7225 - 5B)

20µs / div

1V / div DC

V4

20µs / div

(6 - 7225 - 5A)

1V / div DC

I1

(Red)

20µs / div

20V / div DC

V16c

(Blue)

20µs / div

1V / div DC

V16a

s / div
20

1V / div DC

s / div
20

1V / div DC

s / div
20

0.5V / div DC

s / div
20

0.5V / div DC

s / div
20

1V / div DC

s / div
20

20V / div DC

s / div
20

20V / div DC

(7 - 7520)

P8

5µs / div

(14 - 7520)

0.5V / div DC

P9

(C - 6550)

5µs / div

0.5V / div DC

P10

95V DC

(C - 6550)

P10

104V DC

(C - 6570)

16V DC

P11

(C - 6570)

P11

14.4V DC

(6 - 7541)

P12

2.1V DC

(6 - 7541)

P12

2V DC

(2 - 7541)

14.5V DC

P13

(2 - 7541)

P13

13.6V DC

(8 - 7541)

8V DC

P14

(8 - 7541)

P14

0.6V DC

(9 - 7541)

5V DC

P15

(9 - 7541)

P15

5V DC

(7 - 5545)

P1

(C - 6510)

5ms / div

100V / div DC

P2

(S - 7518)

5ms / div

5V / div DC

P3

(3 - 7520)

5µs / div

0.5V / div DC

P4

(3 - 7520)

5µs / div

2V / div DC

P4

5µs / div

2V / div DC

(1 - 7520)

P5

14V DC

(10 - 7520)

P6

5µs / div

(6 - 7520)

1V / div DC

P7

015_008.EPS

5µs / div

0.5V / div DC

16L7.2E

7 Diagrams and print lay-outs

7 Diagrams and print lay-outs

9615C2

9616C3

9620C1

9628D3

9637C1

9643D2

9644D3

9647D2

9649C2

9650C3

9651C4

9658C1

9660C2

9663D2

9667D2

9677C2

9690D2

9691C3

9692C3

9693C3

9900B5

9901B5

9902D5

9903C5

9904D5

9905D5

9906D5

9907C5

M0 B3

M11 E4

M9 E3

*=chip

component

9103E4

9104E4

9107D4

9108E5

9109E4

9110E3

9111 E2

9112D5

9113C4

9115E4

9116E3

9118C3

9122E4

9123E4

9124E4

9125E4

9126D4

9131D5

9132B1

9133E3

9134E3

9135E3

9137E5

9138E5

9139D2

9141D3

9145D5

9147D5

9148D5

9202D4

9203C4

9206C3

9207C3

9208D3

9209C3

9210E4

9211D3

9212D3

9220D3

9221C3

9225C3

9229D2

9233D1

9235D3

9236D3

9237C3

9238D3

9240C4

9245D3

9246D3

9247C3

9248C3

9250D3

9251D3

9252D1

9261D3

9270C3

9313E1

9317D1

9334E2

9337E1

9341E2

9347E2

9370E1

9372E1

9377E1

9403B4

9404C5

9405C3

9406B5

9408C5

9410C4

9411B5

9413C5

9416C4

9417C2

9418D3

9419C4

9423C4

9424C4

9425C4

9426D3

9443D5

9448B4

9450A4

9454A5

9461B4

9462B4

9469C5

9500A2

9501A1

9505B2

9515A3

9518C3

9519C3

9520C2

9590C3

9601D3

9602C1

9603B1

9604D3

9605D2

9606E4

9607C2

9611D2

9613D1

9614D2

6455A5

6456A5

6461B4

6464B4

6468C5

6470B5

6480C4

6481C4

6502B2

6503B2

6504B2

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3430E4

3431A5

3432A5

3433D4

3434D4*

3435D4

3436C5

3437C4

3440C3*

3441C3*

3442A4

3443B4*

3444A4

3445A4

3446A4

3447B4

3448B4

3449B5

3450B4

3451B4

3456A5

3457A5

3458A5

3459A4

3460B5

3461C3*

3462B4

3470B5

3471A5

3480C4

3481C4

3490D4*

3491D4*

3500A2

3501A1

3503B2

3504B2

2607D2*

2608D2*

2610D1

2611D1

2613D1*

2615E4

2621C1*

2622C1*

2623C1*

2630D1

2639D2*

2644D2

2650D1*

2652D1*

2655C1

2660D2*

2661D2*

2663D3*

2664D2*

2666D2*

2670C1*

2671A1

2674C2*

2680C2*

2682C2*

2683C2*

2684C2*

2685C2*

2690C2*

2691C2*

2692C2*

2693C2*

2694C2*

2695C2*

3000E4*

3001E4

3002E4

3004E4*

3005E3*

3006E3*

3007E3

3008E3*

3009E3*

3010E3

3013E3

3015E3

3016D5

3020E5*

3022E5*

3040E4*

3100B1

3104C3

3105C3*

3106C3*

3107C3*

3108C4*

3114C1

3115C1

3121C5

3122C5

3123D5

3124D5*

3125D5

3126C3*

3127D5

3128D5

3129C3*

3130C3*

3141D3

3144D4*

3160D5

3161C5

3162D5

3163D5

3164D5

3165D5*

3166D5*

3167D5*

3168D5*

3169C4*

3170E5*

3178E5*

3179E5*

3180E5*

3181E5*

3185C1

3186C1

3187C1

3188C1

3191B1

3192B1

3193B1

3194E5

3195D5

3201D4*

3202D4*

3203D4

3204D5*

3205D4

3206C4*

3207C4

3208D3*

3209D4*

3210C4*

3211C4*

3214C4*

3215C4*

2222E3*

2224D4

2226D3

2240D3*

2241D3*

2242D3*

2248E3*

2249D3*

2251E3*

2252E3*

2254E3*

2260D3

2261C3*

2272D4*

2273D3*

2275D4*

2277D4*

2283C3*

2284C3*

2285C3*

2313E2*

2321E2*

2323E2*

2333E1*

2341E1

2342D1

2373E1

2401C5

2403D4

2406D4*

2409D4*

2410D4

2414C5

2420C3

2421D4

2422B2

2430D4

2434D4*

2436D4*

2437D4*

2440C3

2442A4 *

2443C4

2444A4

2445A4

2448B4

2450A5

2451A4

2452C4

2453C4

2456A5

2460B5

2461D3

2462A4

2463C5

2464B5*

2465B5*

2466C5*

2467C5*

2468C5*

2469A4

2470A5

2471A4

2476C5*

2480C4

2485B5*

2487C5*

2500A1

2502B2

2504B2

2505B2

2508A2

2509B3

2510B3

2517A3 *

2518B2

2520A3 *

2521A3 *

2522A3 *

2524A3 *

2529A3 *

2530A3

2531A3

2532A3 *

2533A3 *

2534A3 *

2537A3

2540A3

2541A3

2545B3

2550B4

2551B4

2553C2*

2554C2*

2560B3*

2561C3

2562B4

2563C2

2570B3*

2571C3

2572B3*

2580C2*

2582B4*

2583C2

2584C2

2601C1*

2602C1

0003E2

0004D1

0010C2

0011A2

0015D3

0020B1

0022B1

0024C1

0025C1

0026D1

0028D2

0029D2

0030B1

0044C5

0055A4

0066B5

0077D3

0088B1

0139A1

0166E1

0177E2

0231C5

0232B1

0233D1

0321E1

0322E1

1000E5

1015D4

1060C1

1061D1

1062D1

1063D1

1064A1

1100B1 *

1102D4

1103B1 *

1104D4

1105C1 *

1106B1 *

1107B1 *

1108C5 *

1109C5 *

1110D5*

1111 C5 *

1112D5*

1120B1 *

1121B1 *

1122B1 *

1123B1 *

1206C3

1207C4

1208C4

1209E4

1275D4

1277D4

1500A2

1560C3

1571B3

1670B1

1681C2

2008E5*

2010D4

2011E4*

2016D5

2042E4*

2043E4*

2104E5

2105D5

2108D4

2110D5

2115B1

2116B1

2117C4 *

2120D5

2121D5

2124C1*

2125C1*

2128D4*

2130D4*

2144D4

2145D5*

2161D5

2163C1

2164C1

2166C5*

2167D5

2168C5*

2169C5*

2170E5

2171E5

2180C5*

2198B1

2199B1

2200D5*

2201D4*

2202D4

2203D4*

2205E3

2209D4*

2211D4

2212D4*

2213D4*

2214C1*

2215D4*

2217C4

2218D4*

2221E3*

110398

015_007.EPS

1

18L7.2E

2

34

5

7 Diagrams and print lay-outs

A

B

C

D

E

015_009.EPS

19L7.2E

(3 - 7401)

F4

(5- 7401)

F3

(1 - 7401)

F2

(7- 7401)

F1

(C - 6443)

(C - 6454)

L11

5V DC

L12

(40 - 7225 - 5D)

L4

13V DC

5ms / div

10V / div DC

5ms / div

20V / div DC

5ms / div

0.5V / div DC

5ms / div

0.5V / div DC

20µs / div

2V / div DC

7 Diagrams and print lay-outs

(E- 7440)

L3

(3445 / 3442)

L2

(C - 7445)

L1

(41 - 7225 - 5D)

S1

20µs / div

2V / div DC

20µs / div

2V / div DC

20µs / div

100V / div DC

20µs / div

1V / div DC

(12 - 7225)

V12

(3M7)

20µs / div

0.5V / div DC
V13

(2M7)

20µs / div

1V / div DC

V14

(4M7)

20µs / div

1V / div DC

V15

20µs / div

1V / div DC

(6 - 7225 - 5A)

I1

20µs / div

(IF - Tuner)

1V / div DC

I2

20µs / div

(1 - Tuner)

0.2V / div AC
I3

20µs / div

(1 - Tuner)

0.5V / div DC
I4

(2 - Tuner)

only FST tuner

I5

2V DC

015_010.EPS

(16 - 7241)

V7

(PAL)

(11 - 7225 - 5B)

V6

3.5V DC

(30 - 7225 - 5B)

V5

(29 - 7225 - 5B)

V4

(28 - 7225 - 5B)

V3

(38 - 7225 - 5B)

V2

20µs / div

0.5V / div DC

20µs / div

0.5V / div DC

(11 - 7255)

20µs / div

0.5V / div DC
V11

(14 - 7255)

20µs / div

1V / div DC

V10

(16 - 7255)

20µs / div

1V / div DC

V9

20µs / div

0.5V / div DC

20µs / div

0.5V / div DC

20µs / div

0.5V / div DC

20L7.2E

(13 - 7225 - 5B)

V1

(5 - 7255)

20µs / div

1V / div DC

V8

20µs / div

1V / div DC

7 Diagrams and print lay-outs

21L7.2E

C1 (52 - 7600)

5V DC

(50 - 7600)

C2

5ms / div

1V / div DC

C3 (49 - 7600)

5ms / div

1V / div DC

(with RC5 signal)

C4 (1 - 1670)

(41 - 7600)

5ms / div

1V / div DC

C5

(42 - 7600)

0.5µs / div

1V / div DC

C6

0.5µs / div

1V / div DC

7 Diagrams and print lay-outs

015_012.EPS

22L7.2E

A7, A8, A9, A10

(Video out)

A6

(Audio out)

A5

(Audio out)

A4

(15 - 7225 - 5E)

A3

(55 - 7225 - 5E)

A2

1ms / div

0.1V / div DC

20µs / div

1V / div DC

0.5ms / div

1V / div DC

0.5ms / div

1V / div DC

0.5ms / div

1V / div DC

1ms / div

5V / div AC

7 Diagrams and print lay-outs

(1 - 7225 - 5E)

A1

0.1ms / div

0.1V / div AC

A

100398

015_004.EPS

9347A2

9370B1

9372B1

9377B2

3

2

3

2

*=chipcomponent

1

7308B1

7309A1

9313B1

9317A1

9334A3

9337B1

9341B3

9347A2

6347B3

7301B3

7302B3

7303A1

7304B3

7305B2

7306B3

7307B3

3374B2

4677B1*

5370B1

6311A2

6321A3

6331A3

6332A1

6341B3

2

3335B3

3336A1

3337A1

3341A1

3342A1

3347B3

3371B1

3372B1

3324A3

3325B3

3326A3

3327A3

3331B1*

3332B1*

3333B1*

3334A1

3313B3*

3314A3

3315A3

3316A2

3317A2

3321B3*

3322B3*

1

1

2321B3*

3323B3*

3

2323B3*

2333A1 *

2341B1

2342A1

2373B2

3311B3

3312B3*

3313B3*

B

100398

015_005.EPS

9347A2

9370B1

9372B1

9377B2

*=chipcomponent

1

7308B1

7309A1

9313B1

9317A1

9334A3

9337B1

9341B3

9347A2

6347B3

7301B3

7302B3

7303A1

7304B3

7305B2

7306B3

7307B3

3374B2

4677B1*

5370B1

6311A2

6321A3

6331A3

6332A1

6341B3

2

3335B3

3336A1

3337A1

3341A1

3342A1

3347B3

3371B1

3372B1

3324A3

3325B3

3326A3

3327A3

3331B1*

3332B1*

3333B1*

3334A1

3313B3*

3314A3

3315A3

3316A2

3317A2

3321B3*

3322B3*

3323B3*

3

2321B3*

2323B3*

2333A1 *

2341B1

2342A1

2373B2

3311B3

3312B3*

3313B3*

23L7.2E

A A

B B

A

A428 A 2

A399 A 5

A390 A 4

A382 F 4

A381 B 3

A380 E 5

A379 C 1

A378 G 2

A377 F 3

A376 E 4

A375 D 2

A374 E 3

A373 D 3

A372 C 3

A343 B 2

A342 B 3

+200Va

A399A390

3341

10R

22u/250V

2342

100n

2341

A280

220k
3342

AQUADAG

2 0321

0004

A302 G 2

A301 G 2

A300 D 5

A296 D 4

A288 D 2

A287 D 2

A056 A 2

9372 E 5

9370 E 5

9341 H 2

7309 A 3

7308 B 3

7303 B 2

7302 D 2

7301 G 2

6347 H 3

6341 H 2

6332 B 3

A341 A 3

A340 A 3

A334 A 4

A319 H 1

A285 C 1

A282 C 3

A281 C 4

A280 A 5

7307 D 3

7306 D 3

7305 F 3

7304 G 3

451 6723

200V

6331 A 3

6321 D 3

6311 G 3

5370 E 5

3374 E 5

3372 E 4

3371 E 4

3347 H 3

3342 A 5

3341 A 4

A334

1N4148

+200Va +200Va

+200Va

6331

220R
3336

15k

3334

CRT

183V

A

A428

7309

BF422

V15a

1k5

3337

116V8

121V

A056

2V1

B

3337 A 3

3336 A 3

3335 B 3

3334 A 2

3333 C 2

3332 B 2

3331 B 2

3327 D 3

3326 C 3

3325 E 3

3324 C 2

3323 E 2

3322 E 2

3321 D 2

3317 G 3

3316 F 3

3315 H 3

3314 F 2

3313 H 2

3312 G 2

3311 G 2

2373 F 5

2342 A 5

2341 A 5

2333 B 2

2323 E 2

2321 H 2

2313 G 2

0322 D 6

0322 B 4

0322 D 4

0322 D 5

0322 C 4

0322 D 5

0322 B 4

0322 D 5

0322 D 6

0321 B 4

0321 D 5

0321 C 4

0321 D 5

0321 D 5

0321 D 4

0321 B 4

0321 A 5

0321 D 6

0177 C 1

0166 H 4

0004 A 5

0003 H 5

7 Diagrams and print lay-outs

V16a

6332

A340

7303

BF422

3 0321

or

BAV21

7308

BF423

1V8

B

11 0322

B

B

V16b

A342A341

5V1

*

A343

1k

3331

G

6 0322

or

2333

*

0003B2

9 0321

A381

330R
3335

3332

0004A1

03228

0166B1

R

03217

or

A282

47R

3333

A379

0177B3

+200Va

0003B2

0004A1

0166B1

0177B3

0233A1

0321B2

0322A2

0233A1

0321B2

0322A2

2313B3*

C

FOCUS

A281

+200Va

C

V16c

FF FF Vg1 Vg2

A372

220R
3326

183V

0177

TO

1010

032212

03211

03221

03227

or

03225

or

03229

or

032210

or

7307

15k

3324

A285

5

0077

03218

03216

03215

03214

1k5

3327

BF422

115V

118V

V15b

4

OF

A

D

6321

BAV21

A373

7302

BF422

2V1

A288

G

321

A3

D

A296

Video

E

220p

270P

270P

430R

17" 21"

150p

180p

220p

470R

2313

3312

2323

2333

1K5

3374

(RES)

9370

*

5370

A300

*

3372

*

3371

A374

7306

BF423

5V1

A287A301

*

2323

*

1V8

3322

A375

1k

3321

Processing

A380

A376

E

+200Va

330R
3325

47R

3323

33n

2373

9372

+200Va+200Va

A382

F

430R

470R

3322

15k

F

430R

470R

3332

A377

220R
3316

3314

B

G

25KVEHT

56u22u5370

2R71R3372

2R71R3371

FOCUS

0003

Vg2

200V

FL_A

0166

GND_LOT

1k5

3317

6311

BAV21

7305

BF422

120V

183

124V

7301

V15c

2V1

A302

R

BF422

1V8

G

7304

BF423

*

A378

5V1

2313

*

1k

3311

3312

2313B3*

H

1

1

A2

2

3

TO 0066 OF Line-output

330R

1K

3315

3347

9341

RES

47R

6341

3313

RES

2321

H

015_013.EPS

6347

BZX79C-8V2

BLACK_CURRENT

A319

V16c (Red)

V16b (Green)

V16a (Blue)

(Bleu)V15b (Green)V15a (Blue)

V15c

20V / div DC

20V / div DC

20V / div DC

1V / div DC 1V / div DC 1V / div DC

015_014.EPS

24L7.2E

7 Diagrams and print lay-outs

3229B1*

3230B1*

3233B1*

3234B1*

3235A1 *

3238B1*

3239B1*

3240A1 *

3242A1 *

3243B1*

3244B1*

3246B2

3247B1

3248B1*

3249B3

3250B2

3251B3*

3252B3*

3253B3*

3254B2

4200B2*

4201A2 *

4203B2*

4204B2*

4205B2*

4206B2*

4207B2*

4209B2*

4211B3*

4214B2*

4220B1*

4221B1*

4222B1*

4223B1*

4233A1 *

5201B2*

5202B2

5203B1

5204A1

5205A2

5206B2

5207B2

6201B2

6202B2

6204A1

6205B1

6206B3

6207B3

7201B2

7202A1

7203B1

7204B3

7205B2*

7207B2*

7208B2*

7209B1*

7210B2*

7211A2*

7212A2 *

7214B1

7215B2*

7216B2*

7220B3

9200B1

9201B2

9202B2

9205B3

9206A2

9207A2

9208B1

9209A2

9210B1

9211B1

9212B1

9213B3

9214A2

9215B2

9216B1

9217B2

9220B2

9221B3

9223B1

9224B2

9257B3

0022B3

0033B1

0130B3

1202B2

1203B2

1204A2

2201B2*

2202B2*

2203B2

2206B2*

2207B2*

2208A2

2209A1 *

2210B2*

2211A1*

2212A1 *

2213A2 *

2214A2 *

2215A2 *

2216A1 *

2217A1 *

2220A1 *

2221A1 *

2224A2 *

2225A2 *

2226A2 *

2227A1 *

2228A2

2229B1

2230A1

2231A1 *

2232A1 *

2234A1

2235A1 *

2236A1 *

2237B2*

2238B2*

2239A1 *

2240A1 *

2241A1

2242A1 *

2243A1 *

2244A1 *

2245B1

2246B1*

2247B1*

2248B1

2249B1*

2250B1

2251B1*

2252A1

2253B1*

2254B1*

2255A2

2256B3*

2257B3

2260A1

2261A2

2262A2

2263A2

2264B3

2265B3*

2266B1*

2267B1*

2268B1

2271B3*

2272B3*

2273B1*

2274A1 *

2276A1 *

2277A1 *

2278A1 *

2279A2 *

2280A1 *

2281A1 *

3201B2*

3202B2*

3203B2*

3207B2*

3211B2*

3213B3

3214B2*

3215B2*

3216B1

3217B1

3218A2 *

3219A2 *

A

B

*=chipcomponent

3220A2 *

3221A2 *

3222B2*

3223A2 *

3224A1 *

3227A1 *

3228B2*

170398

015_008.EPS

25L7.2E

1

2

3

A

B

3

2

1

7 Diagrams and print lay-outs

A

100398

015_003.EPS

9503B1

9504B3

9505B3

9506B2

9507B2

9508A2

9510B2

9514B1

3

7507B1

7508B2

6503B2

6504B3

3532B2

3533B2

9515B3

7509B2

7510B2

7511A1

7512A1

7513A1

7514A1

7515A2

9501B1

6505B3

7220B3

7501B1

7502B3

7503B2

7504B2

7505A1

7506A1

3534B3

3536B3

3537B3

3539B2

3540B2

5501B1

6501B1

6502B2

2

3522A2

3523A2

3524A2

3525B2

3526B2

3527B2

3528B2

3529B2

3530B2

3531A2

3502B2

3503B2

3504B2

3505B2

3506B1

3507B2

3508B1

3509A1

3510B1

3511A1

2517B3

2518B3

2519B3

2520B3

2521B2

2522B1

2523B1

2524B1

2525A2

3501B2

1

2507A1

2508A2

2509A1

2510A1

2511B2

2512B2

2513A2

2514B2

2515B3

2516B3

0022B3

0033B1

0130B3

1501B2

2501B2

2502B1

2503B1

2504B1

2505A1

B

2506A1

015_015.EPS

26L7.2E

7 Diagrams and print lay-outs

8 Electrical adjustments

8 Electrical adjustments

Note:
Unless stated otherwise, the supply voltage used is:
220V to 240V +/- 10%, 50 - 60 Hz +/- 5%.
Voltage and wave forms are measured in respect to earth.
Remarks:

– Never use the heatsink as earth.
– Where in the adjustment a pattern generator is mentioned,

a colour pattern generator PM5418 has been used with an
RF output voltage of 1mV.

– For some adjustments the set has to be put in the SAM

(Service Alignment Mode).

– When in the text "Enter SAM" is mentioned proceed as

follows:

– Enter SAM by Dealer Service Tool (button "ALIGN"), or via

short-circuit the service pins 0028 and 0029 on the main
PCB while switching on the set via the mains switch.

– The SAM menu is displayed when the SAM mode is

entered (see also chapter 5).

8.1 Settings on the main chassis panel

8.1.1 (95V supply voltage (17", 21" )

– Connect a multi meter (DC) across C2551.
– Set brightness and contrast to minimum
– Tune to a colour-bar test signal
– Apply a colour bar pattern.
– Adjust potentiometer R3540 to:

• 96.7V +/- 1V for 21" sets

• 100V +/- 1V for 17" sets.

8.1.2 Geometry adjustments (software adjustment)

– Apply a cross hatch pattern
– Enter SAM.
– Enter into GEOMETRY menu.
– The value of the geometry settings can be decrement or

increment by pressing the right or left key on the remote
control.

Remark: Before doing the geometry alignment HSH,VSH and
VAM, set first item VS (vertical slope) to 25 and SC (Vertical S­correction) to 13 for 21" and to 15 for 17".

* Horizontal centring

Select item HSH for horizontal shift.

* Vertical centring

Select item VSH for vertical shift

* Picture height

Select item VAM for vertical amplitude .

8.1.3 Focusing

27L7.2E

– Enter into TUNER menu, select item AGC for RF AGC

adjustment.
– Connect a multi-meter (DC) at pin 1 of the tuner.
– The "AGC" value can be increment or decrement by

pressing the remote control right or left key. Adjust so that

the voltage at pin 1 of the tuner is 5V ( 0.5V DC

8.1.5 Picture demodulator adjustment.

– Enter SAM .
– Enter into TUNER menu
– Connect a signal generator (PM5326) to pin 11 of the tuner

* IF-PLL setting (for all versions)

– Set generator signal to 38.9MHz (negative modulation).
– Set AFW = 80 and adjust IF PLL until AFA = 1 and AFB is

just switching from 1 to 0 or 0 to 1.

* IF-PLL L ACCENT setting

– Set generator signal to 33.9MHz (positive modulation) in

Band I & System L for Mono BGLI version
– Set generator signal to 34.0MHz (positive modulation) in

Band I & System L for Nicam BGLI version.
– Set AFW = 80 and adjust IF PLL ACCENT until AFA = 1

and AFB is just switching from 1 to 0 or 0 to 1.

Remark: For IF PLL ACCENT adjustment, the set has to be
tuned on system France, VHF 1 and varicap voltage <9V.

8.2 Vg2 and white-D settings

8.2.1 Vg2 cut off alignment

– Apply a black picture pattern.
– Connect an oscilloscope to the picture tube cathodes for

red, green and blue. Set the oscilloscope to DC 50V/Div

and 2ms/Div.
– Measure the DC level of the measuring pulses at the end

of the frame blanking (see Fig 8.1)
– Adjust the VG2 potmeter (lower knob on the LOT) so that

the measuring pulses with the highest level are:

• 140V +/- 2V for 21"

• 130V +/- 2V for 17"

8.2.2 White-D adjustment (software adjustment)

– Enter into WHITE TONE menu, select item WARN, COOL

or NORMAL, only one of the three items Apply a white

raster pattern.
– Enter SAM (see chapter 6).
– (R, G or B) will be displayed on the screen.
– The initial default value for all setting is 37.
– The factory settings of the colour temperatures are :

• WARM(R = 45, G = 32, B = 26)

• NORMAL(R = 37, G = X, B = Y)

• COOL(R = 37, G = 32, B = 31)

– Apply a cross hatch pattern.
– Set brightness and contrast at maximum.
– Adjusted with focusing potentiometer (upper knob of LOT

5445 ) for maximum sharpness of the picture.

8.1.4 RF-AGC adjustment (software adjustment)

– Apply a PAL colour bar pattern and set RF-frequency on

189.25MHz (output voltage 1mV).

– Enter SAM

Remark: X and Y values in NORMAL setting are adjusted for
8500K colour temperature.

28 L7.2E

Figure 8-1

8 Electrical adjustments

MEASURING PULS

Vcu

ADJUST

LEVEL

0V

Main panel (component side view)

CL 86532008_006.ai

160298

AUDIO
PANEL

0028

SAM

0029

7620

EEPROM

7600
µP

7225
TV.PROC.

0025

SDM

0024

LOT

Hot Area

17" 100V ±1V
21" 96V7 ± 1V

3540

V

BATT

Figure 8-2

1900

TUNER

Focus

Screen

CRT panel (track side view)

1

0322

8

0177

1

CL86532008_010.ai

0166

1

170298

9 Circuit diagram description

9 Circuit diagram description

Introduction

29L7.2E

9.1.5 Primary current (I-prim) sensing (pin 7 of IC7520)

For a quick overall view of all diagrams see the block diagram
on sheet 4.

This chassis is executed with:

– A mains isolated SMPS (switched mode power supply)
– Asingle chip TVprocessor withsoftware controlledpicture

geometry adjustments

– Micro computer with teletext function (execution

depended)-

– Separateaudio module (multi mono or NICAM) withoutput

amplifier

9.1 Power supply (Diagram A1)

9.1.1 Mains input and degaussing

The mains voltage is filtered by L5500, L5501 and L5502, full
wave rectified by a diode bridge (6502-6505)and smoothed by
C2508. The DC voltage for the SMPS is applied at pin 7 of
T5545 (e.g. 300V DC for 220V AC mains).

Thedegaussing current is applied via dualPTC resistorR3504
After switching "on" the set, the PTC is cold so low-ohmic and
therefore the degaussing current is very high. During
degaussing,thePTCis heated up and is getting high-ohmic, as
a result the current through the PTC becomes very low.

The current sense voltage Vpin 7 is a measure for the I-prim
through FET 7518. The I-prim is converted into a voltage by
R3518. The current sense voltage Vpin 7 is used to control
both the secondary output voltages and the maximum I-prim.

9.1.6 Demagnetization control (pin 8 0f IC7520)

The voltage across winding 1 - 2 has the same polarity as the
voltage across the secondary windings. As a result the voltage
across this winding is negative during the FET is conducting,
and positive during the FET is not conducting. The so called
demagnetization "DEMAG" function in IC7520 (input pin 8) is
used for blocking the output Vpin3 during the time that there is
still energy in the transformer (Isec not zero). This is realized
by delaying the switch "on" point of the FET until the
demagnetization is completely finished.

9.1.7 Standby mode

In the standby mode the load decreases under a certain
threshold level. The SMPS is than switching to the so called
"reduced frequency mode". The switching frequency is than
reduced to 20 kHz. The minimal load threshold level is
determined by R3532 connected to pin 12.

In normal operation mode the internal oscillator is adjusted at
70 kHz. This frequency is determined by C2531 and R3537
connected to pin 10 and pin 16 respectively of the IC7520.

9.1.2 Switched mode power supply

The switched mode power supply (SMPS) is mains isolated.
The control device IC7520 (MC44603AP) delivers duty cycle
controlled pulses for driving switching FET 7518. The pulses
have a fixed frequency of 70 kHz in normal operation.

For a detailed block diagram of IC7520 (MC44603) see Fig.

9.1.

9.1.3 Start up and take over circuitry.

Via the start-up circuitry R3530 and R3529 one side of the
220V AC mains is used to start-up IC7520 via the supply pin
(Vpin1). As long as Vpin 1hasnot reached 14V5, IC7520 does
not start up and only sinks 0.3mA. As soon as Vpin 1 reaches
the 14V5, IC7520 starts driving FET 7518 into conduction and
pin 1 sinks a typical supply current of 17mA. This supply
current can not be delivered by the start-up circuit, so a take­over circuit has tobe available. If no take-over take's place, the
voltage on pin 1 will decrease and IC7520 switches off . In that
case the restart will start again. During start-up a voltage
across winding 1 - 2 is built up. At the moment the voltage
across winding 1 - 2 reaches approx. (12V, D6540 start
conductingand takes over the supplyvoltage Vpin 1 of IC7520
(take over current is approx. 17mA).

9.1.4 Secondary output voltages sensing (pin 14 of IC7520)

Winding 1 - 2 has the same polarity as the secondary windings
witch are supplying the load. During the FET is not conducting
the secondary windings and winding 1-2 are positive. D6537
conducts and charges C2537; the DC level across C2537 is a
reference for the secondary output voltages e.g. the
+95V((VBATT). This control voltage (feedback voltage) is
applied via voltage divider R3538, R3539 and potentiometer
R3540 (for adjusting the +VBATT) to the error amplifier input
IC7520 pin 14.

In standby mode the internal oscillator is adjusted at 20 KHz.
This frequency is determined by R3536 connected to pin 15
IC7520.

9.1.8 FET 7518 gate regulation

D6524 prevents pin 3 of IC7520 from becoming negative (this
will destroy the IC) due to stray inductance in the gate part of
the FET. The safety resistor R3525 limits the drive current to
the gate of the FET 7518

9.1.9 Over voltage protection of the secondary voltages

Afterstart-upisthesupplyvoltage Vpin 1 taken over by positive
winding 1 - 2, and so after start up Vpin 1 is a measuring point
forthesecondary output voltages. After start-up (via an internal
switch) this Vpin 1 is internally tapped (voltage divided) to a
voltage which can be measured at pin 6 (so Vpin 6 is also a
measuringpointforthesecondary output voltages). As soon as
the voltage Vpin 6 > 2V5 the logic in IC 7520 will shut down the
output at pin 3. This 2V5 threshold at Vpin 6 is equivalent to a
Vpin1 of 16V DC which is equivalent to a voltage at the supply
voltage (VBATT of approx. 95V DC (normal operation) and
102V DC (standby). After switching "off" because of over
voltage protection, the IC starts up again In case an over
voltage situation is sensed at the secondary output voltages,
the SMPS will go in over voltage protection. In case the over
voltage situation remains present, the SMPS will give over
voltage protection slow-start, over voltage protection slow­start, etc. ( a very good audible hick-up mode).

9.1.10 Undervoltage protection of the secondary voltages

If the supply voltage Vpin 1 < 9V DC the output pulse at pin 3
will be shut down. As soon as Vpin 1 < 7V5, the IC7520 will be
totally shut "off". Vpin 1 of 9V DC is equivalent to a voltage at
(VBATT of approx. 70V DC (normal operation) and 95V
DC(standby). Vpin 1 of 7V5 is equivalent to a voltage at

30 L7.2E

9 Circuit diagram description

(VBATT of approx. 55V DC (normal operation) and 65V DC
(standby).

In case an under voltage situation is sensed at the secondary
output voltages, the SMPS will first switch "off" the pulse and
then switch "off" the complete IC 7520.

Incase the IC 7520 isswitched "off",the SMPS will switch "off".
In case the under voltage situation remainspresent, the SMPS
will give under voltage protection, slow-start, under-voltage
protection, slow-start, etc. ( a very good audible hick-up mode).

9.1.11 Unload protection

In case the load goes down (e.g. the line deflection goes down
because of standby mode or some failure in the line deflection
circuit) this is detected by IC7520 via I-prim and secondary
output voltages sensing. In case the load decreases below a
certain threshold the SMPS will switch in "reduced frequency
mode" of 20 kHz (this threshold is determined by the voltage
level at pin 12 IC7520);

In case of an unload situation the set will switch to "low
frequency mode" or standby mode. Whether this unload
situationof the SMPS is caused by thestandbycommand or by
a failure (e.g. in the line circuit),can only be determined by
switching on the set again which the remote control, in case of
standby mode the TV will switch "on" again, in case of unload
situation the set will not switch "on".

9.1.12 Overload (short-circuit) protection

If the secondary load becomes too high, I-prim becomes too
high which is sensed by the current sense voltage Vpin 7. This
voltage Vpin 7 is not allowed to exceed 1V DC by IC 7520 and
so gives current limiting.

As the I-prim is limited, the secondary output voltages will also
drop and so supply voltage Vpin 1 will drop. As soon as Vpin
1<9V DC the driving pulse at pin 3 will stop.

As a result of these 2 mechanism in case of an overload the
secondary voltages will drop very fast. This is called the fold­back mechanism, the fold-back point can be adjusted by pin 5
IC7520 this point is adjusted to a maximum tolerable output
power of 85W at 90V AC and 165W at 276VAC.

After this fold-back, the IC starts up again.In case the overload
situation remains present, the SMPS will give fold back again,
slow-start, fold-back, slow-start, etc.;

As a result in case of short-circuit (or overload) the TV will be
in a very good audible hick-up mode.

9.1.13 Output voltages

• +VBATT(95V) used for the line outputstage and the tuning
system.

• 10V / 14V used for the audio amplifier.

• 14V used for the horizontal synchronization circuit and as
input voltage for IC7541.

• +5V (pin 9 of IC7541).used for the control circuit The 5V is
also available in the standby mode).

• +8V (pin 8 of IC7541) used for the video processing. The
+8V output is determined by the voltage on pin 7 of IC
7541 This voltage is adjusted via voltage divider 3552 and

3554.

9.1.14 DC Output Voltages Protections

• +5V protection :When any overload for the +5V supply
occurs (pin 1 of IC7541 < 6.5V) the protection circuit in
IC7541turns on. and shuts downthe +5V supply. and also
+8V supply.

• +8V protection : When any overload for the +8V supply
occurs (pin 1 of IC7541 < 6.5V) the protection circuit in
IC7541 turns on and shut down the output +8V supply. If
the voltage on pin 7 is < 2.4V the +8V will also shut down.

9.2 Single chip TV-processor IC7225 (TDA8374)

Introduction :

In this chip most of the video, audio and sync circuits are
integrated.

In the diagrams the IC is split up in next 5 parts (5A,5B,5C,5D
and 5E).

– IC7225-5A, video detector (see diagram A3).
– IC7225-5B, source select en PAL demodulator (see

diagram A3).

– IC7225-5C, video control (see diagram A3).
– IC7225-5D, horizontal and vertical synchronization (see

diagram A2)

– IC7225-5E, mono sound FM demodulator (see diagram

A5)

9.3 Micro computer (Diagram A4)

Two kinds of microprocessors are used, one with and one
without teletext function The (C with teletext (IC7600) is drawn
in the diagram with the outer pin numbering. In case of no TXT
a (C (IC7601) is used with fewer pins. This (C is drawn in the
diagrams with the internal pinnumbering. In case of the (C with
integrated teletext function, the CVBS-TXT signal is fed to pin

23. The TXT and OSD informationare combined at pins 32-33-

34.

9.4 The line output circuitry (see diagram A2)

Pin 40 IC 7225-5D delivers the drive signal for the line output
stage. Via TS7440 and TS7441 the drive signal is applied to
the line output transistor 7445 and line output transformer
(LOT) 5445. The line output stage supplies the line deflection
current. Via secondary windings of the LOT the following
supply voltages are generated:

• EHT voltage (25kV)

• Vg2 voltage

• Focus voltage

• Filament supply voltage (ff)

• (160V for RGB amplifiers on the CRT panel

• +5.5V for the control circuit and tuner supply

• + 9V for the tuner supply

• +13V for the control and vertical drive output circuit

• -13V for the vertical drive output circuit

9.5 Frame output circuitry

IC 7401 (TDA9302) is usedfor the vertical deflection. This IC is
controlled on pins 1 and 3 by the vertical drive signal delivered
by IC 7225-5D. The deflection current is generated on pin 5.
The vertical fly-back voltage is generated on pin 3 of the IC.

9 Circuit diagram description

31L7.2E

9.6 Protections

General: In the set next protections are build in:

9.6.1 Fast discharge circuit.

TS7420and TS7421 (see diagram A1) formedafast discharge
circuit. When the voltage on the collector of TS7421is >6V the
circuit will switch off the horizontal drive immediately via pin 50
IC7225-5D (see diagram A2).

9.6.2 CRT flash protection.

TheBCIinformation is applied to pin 42 of IC7225-5D.(diagram
A2) If due to a flash in the picture tube the voltage on pin 42 is
>6V, the horizontal drive is switched off immediately. If the
voltage is again <6V the horizontal drive is switched on again.

9.6.3 EHT over voltage protection.

The BCI information is also applied to pin 50-IC7225-5D
(diagram A2). First the BCI compensate vertical picture

amplitude variations due to beam current variations. The
controlrange is between 1.2V and2.8V. Howeverif the voltage
on pin 50 exceeds 3.9V the EHT over voltage protection is
activated and the horizontal drive is switched off.

9.6.4 +13V protection

Protection input pin 16 of IC7600 (see diagram A4). If this pin
is connected to ground, the set is switchedin protection. At this
pin the +13V is monitored via the circuit 7655,7608. The
emitter of 7608 becomes "low" (0V7 lower than the base
voltage) if the +13V drops. This will force pin 16 of the (C "low"
and will switches the set in protection.

9.6.5 +13V and -13V protection

Vertical deflection output IC7401(see diagram A2) issupplied
by +13V and -13V. When the current delivered by the +13V or
13V is increasing to much will this result in a voltage drop of
<6.5V.at pin 3 of the IC (VFL) . This voltage drop is applied to
pin 37-IC7600 (micro computer). The micro-computer will
place the set in the standby mode.

DEMAGNETIZATION

DETECTION

SYNCHRONIZATION

INPUT V

PIN 10

C

R

F ST-BY

R

P ST-BY

VOLTAGE

FEEDBACK

INPUT

E/A OUTPUT

8

9

10

T

15

12

14

13

Figure 9-1

DEMAGNETIZATION

MANAGEMENT

Iref

Vref/2

+

-

FOLDBACK

FOLDBACK

INPUT

BLOCK DIAGRAM MC44603P

Rref

Vdemag out

OSCILLATOR

STAND-BY

(REDUCED

FREQUENCY)

AMP

A

5 11

Vref

Iref

Verror

CURRENT

7

CURRENT

SENSE INPUT

V

PIN 7

SENSE

reference

block

Vosc

Vcs out

B

SOFT-START

CONTROL

SOFT START (Css) /

VOLTAGE MODE CONTROL

Vosc prot

Dmax &

Dmax (R

Vcc enableIrefVref

supply &

initialisation block

C

THERMAL

SHUTDOWN

Iref

max)

D

Set

PWM

LATCH

Reset

UVLO1
Vcc enable

UVLO1
UVLO2

Q

Vref Vcc

OVER

VOLTAGE

MANAGEMENT

UVLO2 Vcc enable

V

CC

116

BUFFER

D

18V

MC44603

CL 56532018/012

080695

V

2

C

OUTPUT V

3

GND

4

OVERVOLTAGE

5

PROTECTION

PIN 3

32 L7.2E

10 Direction for use

10 Direction for use

10 Direction for use

33L7.2E

34 L7.2E

10 Direction for use

10 Direction for use

35L7.2E

36 L7.2E

11 Abbreviations

(R-Y)_OUT R-Y output from chroma demodulator
uC Microcomputer
AQUA Aquadag layer on the outside of the picture

AV_MUTE Signal to mute the sound on the Audio-out

AVL_AV2/AVL Switching signal from UP to the Auto Volume

B_TXT_OSD Blue TXT or OSD signal from (C to the video

BASS Control signal for BASS
BCI Beam Current information
BG/1_or_BG/0 K Monochrome TV system sound carrier +

BL_TXT_OSD Fast blanking signal to IC7725-5C to display

BLACKSTR_SW Black stretch switch
BS1 TV band selection 1 signal
BS2 TV band selection 2 signal
CHROMA_O/
NTSC_SW Switch on signal for NTSC chroma oscillator

CHROMA_1/BG/L Switch on signal for BG/L chroma oscillator

CHROMA_1/
STATUS Switch on signal for NTSC chroma oscillator

CHROMA_2/
STATUS Signal to select the correct system in case of

CVBS_EXT1 CVBS external 1 input signal
CVBS_EXT2 CVBS external 2 signal
CVBS_IN CVBS internal 1 (from tuner)
CVBS_OUT CVBS output signal
CVBS_OUT_1 CVBS output signal 1
CVBS_SOUND CVBS for inter carrier sound detector
CVBS_TXT CVBS for TXT processing in uC
DISCHARGE To have a fast discharge after switching off

EAR Earth
EEPROM Electrical Erasable Programmable Read Only

ESD Electrical Static Discharge
ff Filament (heater voltage) from LOT to the

FL_A Filament voltage for CRT
G_TXT_OSD Green TXT or OSD signal from the

GND Ground
GRD_LOT Ground of LOT
HOR.FLYBACK Horizontal flyback pulse used for looking the

12C Digital Control bus of the microcomputer
IF Intermediate frequency signal for sound

INT/EXT Switchingsignal for Internal or external audio +

L_EXT1 Audio left external 1
LEFT_OUT Audio left out
MOD_L_1N1 SCART I/P 1 in left
MOD_L_1N2 SCART I/P 2 in left
MOD_R_1N1 SCART I/P 1 in right
MOD_L_1N2 SCART I/P 2 in right
MONO/STROBE/
BG_L Strobe signal for HEF 4094 on multi-mono

MONO_OUT Audio mono out
NTSC NTSC colour system
PAL/SECAM PAL or SECAM colour system
R_TXT_OSD Blue TXT or OSD signal from the

tube

cinch

leveller on the ITT on Panel

controller IC7225-5C

5.5MHz (BG), Sound carrier +6MHz(I), Sound
carrier + 6.5MHz(DK)

OSD and TXT

(3.575MHz)

(3.582MHz)

(3.579MHz)

trinorma

the set

Memory

picture tube

microcomputer to IC7225-5C

horizontal oscillator

processing

video switching

sound panel

microcomputer to the video controller
IC72255C

11 Abbreviations

RAM Random Access Memory
RESET1 Reset signal for the uC
RF_AGC Automatic gain control signal I for tuner
RIGHT_OUT Audio right out
ROM Read Only Memory
SAM Service Alignment Mode
SANDCASTLE Sand castle signal from IC7225-5D to delay

line IC7255 and SECAM chrominance

decoder IC7241.
SCL Clock line of the 12C-bus
SDA Data line of the 12C-bus
SDM Service Default Mode; predefined mode for

faultfinding
SECAM_REF SECAM reference
SID/STA/LL Sound identification / stereoavailable / France

system "L"
SIF Sound IF signal for FM demodulator
STANDBY Switchingsignal from microcomputer "low" for

standby (power supply will be switched to

stand-by mode), "high" for normal operation
TREBLE Treble control signal
V_TUNE Tuning voltage for tuner
VFB Vertical flyback pulse
VFL 50 Hz vertical flyback pulse used to inform the

microcomputerthat flyback takes place. This is

important for OSD and TXT
VG2 Voltage on grid 2 of the picture tube
VOLUME Controlsignal (from uC, but on DC level via RC

nework) for volume control of sound

processing in sound panel

12 Spareparts list

37L7.2E

12 Spareparts list

Main carrier [A1-A5]

Various

0024∆ 4822 267 31858 Con. 1P
0011∆ 4822 265 20723 Con. 2P
0022∆ 4822 267 10774 Con. 2P
0055 4822 267 10775 Con. 2P
0044 4822 267 10538 Con. 3P
0088 4822 267 10542 Con. 4P
0030 4822 267 10537 Con. 5P
M9 4822 265 10422 Con. 9P (F-pin)
M11 4822 267 10421 Con. 19P (F-pin)
0231∆ 4822 267 60243 21P scart
0232 4822 265 10392 2P Cinch
0233 4822 267 10687 3P Cinch
0020 4822 267 31014 Headphone socket
0138∆ 4822 276 13603 Mains switch

∆ 4822 492 70289 Spring fix. Ts
∆ 4822 265 11253 Fuse holder

4822 492 70788 Spring fix. IC

∆ 4822 492 62076

g

1000 4822 210 10812 VHF/UHF tuner
1000 4822 210 10815 UHF tuner
1002 4822 242 10743 OFWK6272K

1015 4822 242 10575 OFWJ1980M
1015 4822 242 70936 OFWJ1952
1015 4822 242 81388 OFWG1961M
1015 4822 242 81436 OFWK3953M
1015 4822 242 81737 OFWG1965M
1015 4822 242 81964 OFWG1984M
1060 4822 276 13775 Switch

1061 4822 276 13775 Switch
1062 4822 276 13775 Switch
1063 4822 276 13775 Switch
1102 4822 242 10314 Filter 5,5MHz
1102 4822 242 10362 Filter 6,0MHz
1104 4822 242 10314 Filter 5,5MHz
1104∆ 4822 242 10316 Filter 6,5MHz
1104 4822 242 10362 Filter 6,0MHz
1204 4822 242 10434 X-tal 18,432MHz
1206 4822 242 81301 Filter 6,5MHz
1206 4822 242 81572 Filter 6,0MHz
1207 4822 242 81572 Filter 6,0MHz
1207 4822 242 81712 Filter 5.5/5.74MHz
1209 4822 242 10875 X-tal 40MHz
1275 4822 242 10356 X-tal 4,433619MHz
1277 4822 242 10355 X-tal 3,579545MHz
1500 4822 070 34002 Fuse 4A/desc>
1501 4822 242 81423 OFWL9453M

1560∆ 4822 071 51002 Fuse 1A
1560∆ 4822 071 56301 Fuse 630MA
1571∆ 4822 071 51602 Fuse 1.6A
1670 4822 218 11573 RC rec. GP1U28QP
1681 4822 242 10694 X-tal 12MHz

(38.9MHz)
(38.9MHz)
(38.9MHz)
(38.9MHz)
(38.9MHz)
(38.9MHz)
(38.9MHz)

(38.9MHz)

g

2008∆ 4822 126 13838 100nF 50V 20%
2010∆ 4822 124 40196 220µF 20% 16V
2010 4822 124 41545 220µF 20% 16V
2016∆ 4822 124 40433 47µF 20% 25V
2042 5322 122 32531 100pF 5% 50V
2043 5322 122 32531 100pF 5% 50V
2104∆ 4822 124 41579 10µF 20% 50V
2105∆ 4822 124 41579 10µF 20% 50V
2108 4822 124 40248 10µF 20% 63V
2108∆ 4822 124 41579 10µF 20% 50V
2110∆ 4822 124 41579 10µF 20% 50V
2115 4822 124 40255 100µF 20% 63V
2115 4822 124 81029 100µF 20% 25V
2116 4822 124 40255 100µF 20% 63V
2116 4822 124 81029 100µF 20% 25V
2117 4822 126 13695 82pF 1% 63V
2120 4822 126 10334 470pF 10% 50V
2121 4822 126 10334 470pF 10% 50V
2124 5322 122 32268 470pF 10% 50V
2125 5322 122 32268 470pF 10% 50V
2128∆ 4822 122 32627 2.7nF 10% 50V
2128 5322 126 10465 3.9nF 10% 50V
2130 5322 126 10511 1nF 5% 50V
2144 4822 124 40242 1µF 20% 63V
2145 5322 122 31863 330pF 5% 50V
2161∆ 4822 124 41579 10µF 20% 50V
2163 4822 126 13461 680pF 10% 50V
2164 4822 126 13461 680pF 10% 50V
2166 5322 122 32268 470pF 10% 50V
2167 4822 126 13461 680pF 10% 50V
2168 5322 122 32268 470pF 10% 50V

2169 5322 122 32268 470pF 10% 50V
2170 4822 126 13461 680pF 10% 50V
2171 4822 126 13461 680pF 10% 50V
2180 5322 122 32268 470pF 10% 50V
2198 4822 126 13512 330pF 10% 50V
2199 4822 126 13512 330pF 10% 50V
2200∆ 4822 126 13838 100nF 50V 20%
2201∆ 5322 122 32654 22nF 10% 63V
2202 4822 124 40242 1µF 20% 63V
2202 4822 124 41576 2.2µF 20% 50V
2203 4822 126 14087 100nF 10% 63V
2205 4822 124 11566 47µF 20% 50V
2205 4822 124 41751 47µF 20% 50V
2209∆ 4822 126 13838 100nF 50V 20%
2210 5322 122 32658 22pF 5% 50V
2211 4822 124 41576 2.2µF 20% 50V
2212∆ 5322 122 32654 22nF 10% 63V
2213 4822 126 13061 220nF 20% 25V
2213 4822 126 13692 47pF 1% 63V
2214 4822 122 33926 12pF 50V
2214∆ 4822 126 13838 100nF 50V 20%
2215 4822 126 13061 220nF 20% 25V
2215 4822 126 13692 47pF 1% 63V
2216 4822 126 13473 220nF 80-20% 50V
2217 4822 124 41584 100µF 20% 10V
2217 4822 126 13473 220nF 80-20% 50V
2218 5322 122 32967 5.6pF 10% 63V
2220 4822 126 13473 220nF 80-20% 50V
2221 4822 126 13473 220nF 80-20% 50V
2221∆ 4822 126 13838 100nF 50V 20%
2222∆ 4822 126 13838 100nF 50V 20%
2224 4822 123 14024 1000µF 16V 20%
2224∆ 4822 126 13838 100nF 50V 20%
2225 5322 122 32448 10pF 5% 50V
2226 4822 124 40242 1µF 20% 63V
2226 5322 122 32448 10pF 5% 50V
2227∆ 4822 126 13838 100nF 50V 20%
2228∆ 4822 124 41579 10µF 20% 50V
2229∆ 4822 124 41579 10µF 20% 50V
2230∆ 4822 124 41579 10µF 20% 50V
2231∆ 4822 126 13838 100nF 50V 20%
2234∆ 4822 124 41579 10µF 20% 50V
2235 5322 126 10511 1nF 5% 50V
2236 5322 126 10511 1nF 5% 50V
2237 4822 126 13561 220nF 10% 16V
2238 4822 126 13561 220nF 10% 16V
2240 4822 126 14087 100nF 10% 63V
2241∆ 4822 124 40246 4.7µF 20% 63V
2241 4822 126 13561 220nF 10% 16V
2242∆ 4822 126 13838 100nF 50V 20%
2242∆ 5322 122 32654 22nF 10% 63V
2243 5322 126 10511 1nF 5% 50V
2244 5322 126 10511 1nF 5% 50V
2245 4822 124 41751 47µF 20% 50V
2246 5322 122 32448 10pF 5% 50V
2247 5322 126 10511 1nF 5% 50V
2248 4822 124 81151 22µF 50V
2248 5322 126 10511 1nF 5% 50V
2249 5322 126 10511 1nF 5% 50V
2250 4822 124 41751 47µF 20% 50V
2251 4822 122 33216 270pF 5% 50V
2251 5322 122 32448 10pF 5% 50V
2252∆ 4822 124 41579 10µF 20% 50V
2252∆ 5322 122 32654 22nF 10% 63V
2253∆ 5322 126 10223 4.7nF 10% 63V
2254∆ 5322 122 32654 22nF 10% 63V
2254∆ 5322 126 10223 4.7nF 10% 63V
2255∆ 4822 124 41579 10µF 20% 50V
2256 4822 126 13561 220nF 10% 16V
2257 4822 124 22263 220µF 20% 25V
2260∆ 4822 124 40246 4.7µF 20% 63V
2260 4822 124 40255 100µF 20% 63V
2260∆ 4822 124 41579 10µF 20% 50V
2261 4822 124 40255 100µF 20% 63V
2261∆ 5322 122 32654 22nF 10% 63V
2262∆ 4822 124 41579 10µF 20% 50V
2263∆ 4822 124 41579 10µF 20% 50V
2264 4822 124 81029 100µF 20% 25V
2265 4822 126 13561 220nF 10% 16V
2266 4822 126 13561 220nF 10% 16V
2267 4822 126 13561 220nF 10% 16V
2268 4822 121 42868 220nF 5% 50V
2271 5322 126 10511 1nF 5% 50V
2272 5322 122 33446 3.3nF 10% 63V
2272 5322 126 10511 1nF 5% 50V
2273 4822 126 13561 220nF 10% 16V
2273 4822 126 14087 100nF 10% 63V
2274∆ 4822 126 13838 100nF 50V 20%
2275 4822 126 13486 15pF 2% 63V
2276 4822 126 13694 68pF 1% 63V
2277 4822 126 13486 15pF 2% 63V
2277 4822 126 13694 68pF 1% 63V
2278 5322 126 10511 1nF 5% 50V
2279 5322 126 10511 1nF 5% 50V
2280 5322 126 10511 1nF 5% 50V
2281 5322 126 10511 1nF 5% 50V
2283 4822 126 13751 47nF 10% 63V
2284 4822 126 13751 47nF 10% 63V
2285 4822 126 13751 47nF 10% 63V
2403 4822 124 40242 1µF 20% 63V
2406 4822 122 33127 2.2nF 10% 63V
2409∆ 5322 126 10223 4.7nF 10% 63V
2410 5322 121 42386 100nF 5% 63V
2414 4822 121 42868 220nF 5% 50V

2420 5322 121 42386 100nF 5% 63V
2421∆ 4822 124 41579 10µF 20% 50V
2422 5322 121 42386 100nF 5% 63V
2430∆ 4822 124 41579 10µF 20% 50V
2434∆ 4822 126 13838 100nF 50V 20%
2436 5322 126 10511 1nF 5% 50V
2437 5322 126 10511 1nF 5% 50V
2440 4822 121 70654 2N210% 50V
2442 4822 126 13473 220nF 80-20% 50V
2443 4822 124 80791 470µF 16V 20%
2444 4822 121 51319 1µF 10% 63V
2445∆ 4822 121 70617 10nF 5% 1.6KV
2445∆ 4822 121 70649 9.1nF 5% 1.6KV
2447∆ 4822 126 14078 220pF 10% 2KV
2448 4822 121 43368 47µF 160V
2450 4822 121 10507 250V 470nF 5%
2450∆ 4822 121 10518 250V 390nF 5%
2451 4822 121 51319 1µF 10% 63V
2452 4822 124 80195 470µF 20% 10V
2453 4822 124 80791 470µF 16V 20%
2456 4822 124 80069 1µF 20% 160V
2460 4822 121 51385 33nF 20% 100V
2461 4822 126 11131 18pF 5% 50V
2461 4822 126 13645 27P 50V
2462 4822 126 13866 4.7nF 10% 1KV
2462 4822 126 14079 2.2nF 10% 1KV
2463 4822 124 40255 100µF 20% 63V
2464∆ 4822 126 13838 100nF 50V 20%
2465 5322 126 10184 680P 5% 50V.
2466∆ 4822 122 33172 390pF 5% 50V
2467 5322 126 10184 680P 5% 50V.
2468∆ 4822 126 13838 100nF 50V 20%
2469 4822 126 14237 470pF 10% R 2KV
2470 4822 124 11845 22µF 20% 250V
2471 4822 122 30043 10nF 80% 63V
2476∆ 4822 122 33172 390pF 5% 50V
2480 4822 123 14024 1000µF 16V 20%
2485 5322 126 10184 680P 5% 50V.
2487 5322 126 10184 680P 5% 50V.
2500∆ 4822 126 13589 470nF 275V
2501 4822 121 10686 4.7nF 10% 50V
2502∆ 4822 124 40246 4.7µF 20% 63V
2502∆ 4822 126 12793 2.2nF 10% 2KV
2503∆ 4822 124 40246 4.7µF 20% 63V
2504 4822 121 42868 220nF 5% 50V
2504∆ 4822 126 12793 2.2nF 10% 2KV
2505 4822 124 41576 2.2µF 20% 50V
2505∆ 4822 126 12793 2.2nF 10% 2KV
2506∆ 4822 124 41579 10µF 20% 50V
2507∆ 4822 124 41579 10µF 20% 50V
2508∆ 4822 124 41556 100µF 20% 385V
2508 4822 124 41576 2.2µF 20% 50V
2509∆ 4822 124 41579 10µF 20% 50V
2509 4822 126 13517 820pF 10% 1000V
2510∆ 4822 124 41579 10µF 20% 50V
2510 4822 126 13517 820pF 10% 1000V
2511∆ 4822 124 41579 10µF 20% 50V
2512∆ 4822 121 43996 33nF 5% 50V
2514 4822 121 51472 39nF 5% 250V
2515∆ 4822 121 43823 470nF 5% 50V
2516 4822 121 43925 2.2nF 5% 50V
2517 4822 124 81029 100µF 20% 25V
2517∆ 5322 122 34123 1nF 10% 50V
2518 4822 121 42868 220nF 5% 50V
2518∆ 4822 122 50116 470pF 10% 1KV
2519 5322 121 42386 100nF 5% 63V
2520 4822 124 22263 220µF 20% 25V
2520 4822 126 13695 82pF 1% 63V
2521 4822 121 10686 4.7nF 10% 50V
2521 4822 122 33127 2.2nF 10% 63V
2522 4822 122 33127 2.2nF 10% 63V
2522∆ 4822 124 41579 10µF 20% 50V
2523 4822 124 81029 100µF 20% 25V
2524 4822 121 42868 220nF 5% 50V
2524 5322 122 32268 470pF 10% 50V
2529∆ 4822 126 13838 100nF 50V 20%
2530 4822 124 40242 1µF 20% 63V
2531 4822 121 10673 560pF 1% 630V
2532 5322 126 10511 1nF 5% 50V
2533 5322 122 31863 330pF 5% 50V
2534 5322 126 10511 1nF 5% 50V
2537 5322 121 42386 100nF 5% 63V
2540∆ 4822 124 40433 47µF 20% 25V
2541 4822 121 10686 4.7nF 10% 50V
2545∆ 4822 126 14037 2.2nF 20% 250V
2550∆ 4822 122 50116 470pF 10% 1KV
2551 4822 124 42336 47µF 20% 160V
2553 5322 122 31866 6.8nF 10% 63V
2554 4822 126 13061 220nF 20% 25V
2561 4822 124 80707 2200µF 20% 25V
2562 4822 124 80707 2200µF 20% 25V
2563 4822 124 41097 220µF 20% 16V
2563 4822 124 42403 220µF 20% 16V
2571 4822 124 80707 2200µF 20% 25V
2572 5322 122 32531 100pF 5% 50V
2601 4822 126 13061 220nF 20% 25V
2602∆ 4822 124 40433 47µF 20% 25V
2607∆ 5322 122 34123 1nF 10% 50V
2608∆ 5322 122 34123 1nF 10% 50V
2610 5322 121 42386 100nF 5% 63V
2611∆ 4822 124 41579 10µF 20% 50V
2615 4822 121 42868 220nF 5% 50V
2621 4822 126 13695 82pF 1% 63V
2622 4822 126 13695 82pF 1% 63V

2623∆ 5322 122 32654 22nF 10% 63V
2630∆ 4822 124 41579 10µF 20% 50V
2650 5322 126 10184 680P 5% 50V.
2655 4822 124 41643 100µF 20% 16V
2660 5322 126 10184 680P 5% 50V.
2661 5322 126 10184 680P 5% 50V.
2664∆ 4822 126 13838 100nF 50V 20%
2666∆ 4822 126 13838 100nF 50V 20%
2670 5322 122 32531 100pF 5% 50V
2671 4822 124 81029 100µF 20% 25V
2674 5322 122 32531 100pF 5% 50V
2680 4822 126 13061 220nF 20% 25V
2682 4822 126 13693 56pF 1% 63V
2683 4822 126 13693 56pF 1% 63V
2684 4822 126 13061 220nF 20% 25V
2685 4822 122 33127 2.2nF 10% 63V
2690 5322 122 32531 100pF 5% 50V
2691 5322 122 32531 100pF 5% 50V
2692 5322 122 32531 100pF 5% 50V
2693 5322 122 32531 100pF 5% 50V
2695∆ 4822 126 13838 100nF 50V 20%

f

3000 4822 051 10102 1k 2% 0.25W
3001 4822 116 83864 10k 5% 0.5W
3002 4822 116 83864 10k 5% 0.5W
3004 4822 051 10102 1k 2% 0.25W
3005 4822 051 20223 22k 5% 0.1W
3006 4822 051 20223 22k 5% 0.1W
3007∆ 4822 050 22701 270Ω 1% 0.6W
3008 4822 051 10102 1k 2% 0.25W
3009 4822 051 10102 1k 2% 0.25W
3010∆ 4822 052 10478 4Ω7 5% 0.33W
3016 4822 116 52238 12k 5% 0.5W
3040∆ 4822 051 20109 10Ω 5% 0.1W
3040 4822 051 20391 390Ω 5% 0.1W
3100∆ 4822 051 20472 4k7 5% 0.1W
3101 4822 117 10833 10k 1% 0.1W
3104 4822 116 52283 4k7 5% 0.5W
3105 4822 051 20223 22k 5% 0.1W
3106∆ 4822 051 20472 4k7 5% 0.1W
3107∆ 4822 051 20472 4k7 5% 0.1W
3108 4822 117 11449 2k2 1% 0.1W
3114 4822 116 52257 22k 5% 0.5W
3115 4822 116 52257 22k 5% 0.5W
3121 4822 116 83868 150Ω 5% 0.5W
3122 4822 116 83868 150Ω 5% 0.5W
3123 4822 116 52201 75Ω 5% 0.5W
3124∆ 4822 051 20101 100Ω 5% 0.1W
3125 4822 116 52201 75Ω 5% 0.5W
3126 4822 051 20331 330Ω 5% 0.1W
3127 4822 116 52201 75Ω 5% 0.5W
3128 4822 116 52201 75Ω 5% 0.5W
3129 4822 051 20331 330Ω 5% 0.1W
3130 4822 051 20331 330Ω 5% 0.1W
3141 4822 050 11002 1k 1% 0.4W
3144 4822 051 10102 1k 2% 0.25W
3160 4822 116 52257 22k 5% 0.5W
3161 4822 116 80175 4k7 5% 0.5W
3162 4822 116 52257 22k 5% 0.5W
3163 4822 116 80175 4k7 5% 0.5W
3164 4822 116 52201 75Ω 5% 0.5W
3165∆ 4822 051 20229 22Ω 5% 0.1W
3166 4822 051 20689 68Ω 5% 0.1W
3167 4822 117 11449 2k2 1% 0.1W
3168∆ 4822 051 20101 100Ω 5% 0.1W
3169 4822 051 10102 1k 2% 0.25W
3170∆ 4822 051 20471 470Ω 5% 0.1W
3178 4822 051 20394 390k 5% 0.1W
3179 4822 051 20331 330Ω 5% 0.1W
3179 4822 117 11503 220Ω 1% 0.1W
3180 4822 051 20681 680Ω 5% 0.1W
3181 4822 051 10102 1k 2% 0.25W
3181∆ 4822 051 20471 470Ω 5% 0.1W
3185 4822 116 80175 4k7 5% 0.5W
3186 4822 116 80175 4k7 5% 0.5W
3187 4822 116 52201 75Ω 5% 0.5W
3188∆ 4822 050 12201 220Ω 1% 0.4W
3192 4822 116 83881 390Ω 5% 0.5W
3193 4822 116 83881 390Ω 5% 0.5W
3194 4822 116 83961 6k8 5%
3195 4822 116 80175 4k7 5% 0.5W
3201 4822 051 20391 390Ω 5% 0.1W
3203 4822 116 52257 22k 5% 0.5W
3204 4822 051 20822 8k2 5% 0.1W
3205∆ 4822 050 12201 220Ω 1% 0.4W
3205 4822 116 83872 220Ω 5% 0.5W
3206 4822 051 20399 39Ω 5% 0.1W
3206 4822 051 20829 82Ω 5% 0.1W
3207 4822 116 52231 820Ω 5% 0.5W
3208∆ 4822 051 20472 4k7 5% 0.1W
3209 4822 051 10102 1k 2% 0.25W
3210∆ 4822 051 20471 470Ω 5% 0.1W
3211∆ 4822 051 20471 470Ω 5% 0.1W
3214 4822 051 10102 1k 2% 0.25W
3215 4822 117 10353 150Ω 1% 0.1W
3216 4822 051 20391 390Ω 5% 0.1W
3216 4822 116 52175 100Ω 5% 0.5W
3217 4822 051 20391 390Ω 5% 0.1W
3217 4822 116 52175 100Ω 5% 0.5W
3217 4822 117 10353 150Ω 1% 0.1W
3217 4822 117 11503 220Ω 1% 0.1W

38 L7.2E

12 Spareparts list

3218 4822 117 10833 10k 1% 0.1W
3218 4822 117 11507 6k8 1% 0.1W
3220 4822 116 52175 100Ω 5% 0.5W
3221 4822 116 52175 100Ω 5% 0.5W
3223 4822 116 83864 10k 5% 0.5W
3224 4822 051 20564 560k 5% 0.1W
3224 4822 117 10834 47k 1% 0.1W
3225 4822 051 20569 56Ω 5% 0.1W
3227 4822 051 20569 56Ω 5% 0.1W
3229 4822 051 20561 560Ω 5% 0.1W
3229 4822 051 20569 56Ω 5% 0.1W
3230 4822 117 10834 47k 1% 0.1W
3233 4822 117 11449 2k2 1% 0.1W
3234∆ 4822 052 10228 2Ω2 5% 0.33W
3234 4822 117 10834 47k 1% 0.1W
3235 4822 117 10834 47k 1% 0.1W
3238 4822 051 20561 560Ω 5% 0.1W
3239 4822 117 11449 2k2 1% 0.1W
3240 4822 051 20333 33k 5% 0.1W
3242 4822 051 20333 33k 5% 0.1W
3243 4822 117 11437 8k2 1% 0.1W
3244 4822 117 11154 1k 1% 0.1W
3246 4822 116 83864 10k 5% 0.5W
3247∆ 4822 052 10109 10Ω 5% 0.33W
3248∆ 4822 051 20471 470Ω 5% 0.1W
3250 4822 116 52256 2k2 5% 0.5W
3250 4822 117 10833 10k 1% 0.1W
3250∆ 4822 117 11846 10k 5% 1/16W
3251 4822 051 20681 680Ω 5% 0.1W
3251 4822 116 83864 10k 5% 0.5W
3252∆ 4822 051 20109 10Ω 5% 0.1W
3252∆ 4822 051 20332 3k3 5% 0.1W
3253∆ 4822 051 20109 10Ω 5% 0.1W
3253∆ 4822 051 20153 15k 5% 0.1W
3254 4822 116 83864 10k 5% 0.5W
3254 4822 117 11503 220Ω 1% 0.1W
3265 4822 051 20122 1k2 5% 0.1W
3265 4822 051 20561 560Ω 5% 0.1W
3266 4822 050 11002 1k 1% 0.4W
3267 4822 116 52264 27k 5% 0.5W
3267 4822 116 83884 47k 5% 0.5W
3273 4822 051 20104 100k 5% 0.1W
3280 4822 051 20561 560Ω 5% 0.1W
3401∆ 4822 050 24708 4Ω7 1% 0.6W
3401 5322 116 53564 3Ω3 5% 0.5W
3402∆ 4822 050 24708 4Ω7 1% 0.6W
3402 5322 116 53564 3Ω3 5% 0.5W
3403∆ 4822 051 20153 15k 5% 0.1W
3404 4822 050 22202 2k2 1% 0.6W
3406 4822 116 83872 220Ω 5% 0.5W
3407 4822 116 83872 220Ω 5% 0.5W
3410 4822 051 20393 39k 5% 0.1W
3411 4822 050 22202 2k2 1% 0.6W
3412 4822 117 10833 10k 1% 0.1W
3413∆ 4822 052 10158 1Ω5 5% 0.33W
3415 4822 051 10102 1k 2% 0.25W
3417 4822 051 10102 1k 2% 0.25W
3418 4822 116 52234 100k 5% 0.5W
3420 4822 051 20223 22k 5% 0.1W
3421 4822 117 11149 82k 1% 0.1W
3422 4822 051 20223 22k 5% 0.1W
3423 4822 051 10102 1k 2% 0.25W
3430∆ 4822 052 10478 4Ω7 5% 0.33W
3431 4822 052 10152 1k5 5% 0.33W
3431∆ 4822 052 10472 4k7 5% 0.33W
3432 4822 052 10152 1k5 5% 0.33W
3432∆ 4822 052 10472 4k7 5% 0.33W
3433 4822 116 52271 33k 5% 0.5W
3434 4822 117 10833 10k 1% 0.1W
3435 4822 116 83878 270k 5% 0.5W
3436 4822 050 11002 1k 1% 0.4W
3437 4822 050 11002 1k 1% 0.4W
3440 4822 051 10102 1k 2% 0.25W
3441 4822 051 20124 120k 5% 0.1W
3442 4822 116 52186 22Ω 5% 0.5W
3443 4822 051 20561 560Ω 5% 0.1W
3444 4822 117 12819 10k 5% 3W
3445 4822 117 12624 10Ω 5% 2W
3446 4822 050 21502 1k5 1% 0.6W
3447 4822 050 11002 1k 1% 0.4W
3448 4822 117 12822 4Ω7 5% 5W
3449∆ 4822 052 11108 1Ω 5% 0.5W
3450∆ 4822 052 10278 2Ω7 5% 0.33W
3451∆ 4822 052 10228 2Ω2 5% 0.33W
3456 4822 116 52297 68k 5% 0.5W
3457 4822 116 52297 68k 5% 0.5W
3458 4822 116 52297 68k 5% 0.5W
3459∆ 4822 050 21202 1k2 1% 0.6W
3460∆ 4822 050 21503 15k 1% 0.6W
3460 4822 116 52251 18k 5% 0.5W
3461 4822 051 20273 27k 5% 0.1W
3462∆ 4822 117 12513 4k7 5% 3W
3470∆ 4822 052 11478 4Ω7 5% 0.5W
3471 4822 053 11399 39Ω 5% 2W
3480∆ 4822 052 10109 10Ω 5% 0.33W
3481 4822 117 12821 220Ω 5% 1W
3490 4822 051 20105 1M 5% 0.1W
3491 4822 117 12955 2k7 1% 0.1W 0805
3500 4822 116 21228 VDR 430V-710V
3501 4822 116 83864 10k 5% 0.5W
3501 4822 117 12181 470Ω 20% 0.5W
3502 4822 116 52256 2k2 5% 0.5W
3503 4822 116 52256 2k2 5% 0.5W
3504∆ 4822 116 40137 PTC 36Ω 365V

3504 4822 116 52256 2k2 5% 0.5W
3505 4822 116 83864 10k 5% 0.5W
3505 4822 252 60151 470Ω
3506 4822 116 52175 100Ω 5% 0.5W
3506 4822 117 12822 4Ω7 5% 5W
3507 4822 117 12654 100Ω 5% 5W
3508 4822 116 52176 10Ω 5% 0.5W
3509 4822 116 52257 22k 5% 0.5W
3510 4822 116 52244 15k 5% 0.5W
3510 4822 117 12647 33k 5% 3W
3511 4822 116 52283 4k7 5% 0.5W
3512 4822 050 11002 1k 1% 0.4W
3512∆ 4822 051 20153 15k 5% 0.1W
3513 4822 051 20184 180k 5% 0.1W
3513 4822 116 52291 56k 5% 0.5W
3514 4822 116 52234 100k 5% 0.5W
3515 4822 116 52256 2k2 5% 0.5W
3516 4822 116 52243 1k5 5% 0.5W
3517 4822 116 52243 1k5 5% 0.5W
3517 4822 117 10833 10k 1% 0.1W
3518 4822 116 52256 2k2 5% 0.5W
3518 4822 117 10422 0.33Ω 5% 3W
3519 4822 116 52234 100k 5% 0.5W
3520 4822 116 52291 56k 5% 0.5W
3520 4822 117 11149 82k 1% 0.1W
3521 4822 050 11002 1k 1% 0.4W
3521 4822 116 52219 330Ω 5% 0.5W
3522 4822 116 52244 15k 5% 0.5W
3523 4822 050 11002 1k 1% 0.4W
3524 4822 050 11002 1k 1% 0.4W
3524∆ 4822 051 20008 0Ω jumper
3525∆ 4822 052 10229 22Ω 5% 0.33W
3525 4822 116 83876 270Ω 5% 0.5W
3526 4822 050 11002 1k 1% 0.4W
3527 4822 116 52289 5k6 5% 0.5W
3528 4822 116 52238 12k 5% 0.5W
3528 4822 116 83868 150Ω 5% 0.5W
3529∆ 4822 050 24708 4Ω7 1% 0.6W
3529 4822 116 83883 470Ω 5% 0.5W
3530 4822 116 52276 3k9 5% 0.5W
3530 4822 116 83961 6k8 5%
3531 4822 116 52249 1k8 5% 0.5W
3532 4822 051 20562 5k6 5% 0.1W
3532 4822 116 52249 1k8 5% 0.5W
3533 4822 116 83872 220Ω 5% 0.5W
3534 4822 051 20224 220k 5% 0.1W
3534 4822 116 52228 680Ω 5% 0.5W
3536 4822 051 20393 39k 5% 0.1W
3536 4822 116 83961 6k8 5%
3537 4822 116 52269 3k3 5% 0.5W
3537 4822 117 10833 10k 1% 0.1W
3538 4822 116 52234 100k 5% 0.5W
3539 4822 116 52251 18k 5% 0.5W
3539 4822 116 52276 3k9 5% 0.5W
3540 4822 101 11189 4.7k 30%LIN 0.1W
3540 4822 116 52256 2k2 5% 0.5W
3540 4822 116 52257 22k 5% 0.5W
3541 4822 117 12653 47Ω 5% 2W
3542∆ 4822 053 21475 4M7 5% 0.5W
3545∆ 4822 053 21475 4M7 5% 0.5W
3546∆ 4822 053 21475 4M7 5% 0.5W
3552∆ 4822 051 20332 3k3 5% 0.1W
3553∆ 4822 051 20121 120Ω 5% 0.1W
3554 4822 117 11139 1k5 1% 0.1W
3565 4822 117 10833 10k 1% 0.1W
3570∆ 4822 051 20109 10Ω 5% 0.1W
3601 4822 116 90885 8k2X6
3602 4822 117 12168 2k2 X 6
3603 4822 117 12167 8k2 X 12
3607 4822 051 20822 8k2 5% 0.1W
3608 4822 116 52234 100k 5% 0.5W
3610 4822 117 10833 10k 1% 0.1W
3612 4822 051 20224 220k 5% 0.1W
3613 4822 116 83868 150Ω 5% 0.5W
3614∆ 4822 051 20153 15k 5% 0.1W
3615 4822 116 83864 10k 5% 0.5W
3616 4822 051 20223 22k 5% 0.1W
3617 4822 116 52238 12k 5% 0.5W
3618 4822 116 52244 15k 5% 0.5W
3621∆ 4822 051 20101 100Ω 5% 0.1W
3622∆ 4822 051 20101 100Ω 5% 0.1W
3623 4822 117 10833 10k 1% 0.1W
3624∆ 4822 051 20101 100Ω 5% 0.1W
3625∆ 4822 051 20101 100Ω 5% 0.1W
3628∆ 4822 051 20101 100Ω 5% 0.1W
3629 4822 117 11449 2k2 1% 0.1W
3630 4822 051 10102 1k 2% 0.25W
3630 4822 117 11139 1k5 1% 0.1W
3632 4822 117 10833 10k 1% 0.1W
3633 4822 116 83864 10k 5% 0.5W
3634 4822 116 52283 4k7 5% 0.5W
3636 4822 116 83864 10k 5% 0.5W
3637 4822 116 52256 2k2 5% 0.5W
3640 4822 117 10833 10k 1% 0.1W
3641 4822 117 10833 10k 1% 0.1W
3653 4822 051 20105 1M 5% 0.1W
3654 4822 051 20822 8k2 5% 0.1W
3655 4822 116 52175 100Ω 5% 0.5W
3656∆ 4822 051 20471 470Ω 5% 0.1W
3657 4822 116 52175 100Ω 5% 0.5W
3660 4822 051 10102 1k 2% 0.25W
3661 4822 051 10102 1k 2% 0.25W
3662 4822 051 10102 1k 2% 0.25W
3663 4822 051 20331 330Ω 5% 0.1W

3664∆ 4822 051 20008 0Ω jumper
3666 4822 051 20273 27k 5% 0.1W
3667 4822 051 20122 1k2 5% 0.1W
3670 4822 116 52175 100Ω 5% 0.5W
3671∆ 4822 051 20332 3k3 5% 0.1W
3674 4822 116 52283 4k7 5% 0.5W
3681 4822 116 83864 10k 5% 0.5W
3684 4822 117 10833 10k 1% 0.1W
3685 4822 116 52297 68k 5% 0.5W
3686 4822 051 20333 33k 5% 0.1W
3690 4822 116 52249 1k8 5% 0.5W
3693 4822 117 11503 220Ω 1% 0.1W
3694 4822 051 20182 1k8 5% 0.1W
3695 4822 051 20182 1k8 5% 0.1W
3696 4822 051 20182 1k8 5% 0.1W
3698 4822 051 10102 1k 2% 0.25W
4xxx 4822 051 10008 0Ω 5% 0.25W
4xxx 4822 051 20008 0Ω 5% 0.25W

b

5010 4822 157 11533 390µH 10%
5010 4822 157 11615 220µH
5010 4822 157 63065 0.68µH
5128 4822 157 53575 3.3µH
5201∆ 4822 157 53941 100µH
5203 4822 157 50961 22µH
5203 4822 157 53139 4.7µH
5204∆ 4822 157 51462 10µH
5205∆ 4822 157 51462 10µH
5206 4822 153 20251 18µH 10%
5206∆ 4822 156 21721 2.2µH
5206 4822 157 53634 5.6µH 10%
5207∆ 4822 157 51462 10µH
5260 4822 157 11534 Coil 78MHz
5260 4822 157 11607 Coil 38.9MHz
5441∆ 4822 157 11076 Linearity coil
5441 4822 157 11539 Linearity cor. coil
5442 4822 157 53139 4.7µH
5445∆ 4822 140 10634 LOT for 17" CRT
5445∆ 4822 140 10637 LOT for 21" CRT
5451 4822 157 11167 47µH 5%
5456 4822 156 20915 33µH
5457 4822 156 20915 33µH
5458 4822 156 20915 33µH
5500∆ 4822 157 11399 30mH
5501 4822 152 20678 33µH
5516 4822 157 60171 Bead coil 100MHz
5540 4822 157 52007 4U7 10%
5545∆ 4822 146 10866 Mains trafo for 21"
5545∆ 4822 146 10931 Mains trafo for 17"
5550 4822 157 60171 Bead coil100MHz
5551 4822 157 71157 27µH 5%
5553 5322 157 53016 10µH
5570 4822 157 60171 Bead coil 100MHz
5571∆ 4822 157 51462 10µH
5573 4822 157 60171 Bead coil 100MHz
5600∆ 4822 157 50963 2.2µH
5601∆ 4822 158 10604 6.8 µH
5602 4822 157 53001 27µH 10%
5603 4822 157 62767 8.2µH
5605 4822 157 62767 8.2µH
5620 4822 157 60123 6.8µH

d

6001∆ 4822 130 34173 BZX79-B5V6
6002∆ 4822 130 34173 BZX79-B5V6
6003 5322 130 34955 BA482
6016∆ 4822 130 30621 1N4148
6100∆ 4822 130 30621 1N4148
6100 4822 130 80888 BA682
6101∆ 4822 130 30621 1N4148
6109 4822 130 34382 BZX79-B8V2
6110 4822 130 34382 BZX79-B8V2
6111 4822 130 34382 BZX79-B8V2
6204∆ 4822 130 30621 1N4148
6205∆ 4822 130 34173 BZX79-B5V6
6206∆ 4822 130 30621 1N4148
6207∆ 4822 130 30621 1N4148
6254 4822 130 34233 BZX79-B5V1
6265∆ 4822 130 30621 1N4148
6420∆ 4822 130 30621 1N4148
6440∆ 4822 130 80791 BYV28-200/20
6441 5322 130 31938 BYV27-200
6443 4822 130 42488 BYD33D
6444 4822 130 34145 BZX79-B39
6445∆ 4822 130 32896 BYD33M
6449 4822 130 42488 BYD33D
6454 4822 130 42488 BYD33D
6455 4822 130 42606 BYD33J
6456 4822 130 42606 BYD33J
6461∆ 4822 130 30621 1N4148
6464∆ 4822 130 30621 1N4148
6468 4822 130 42488 BYD33D
6470 4822 130 42606 BYD33J
6480∆ 4822 130 61219 BZX79-B10
6481 4822 130 42488 BYD33D
6501∆ 4822 130 30621 1N4148
6502∆ 4822 130 30621 1N4148
6502∆ 4822 130 31933 1N5061
6503∆ 4822 130 30621 1N4148

6503∆ 4822 130 31933 1N5061
6504∆ 4822 130 30621 1N4148
6504∆ 4822 130 31933 1N5061
6505∆ 4822 130 30621 1N4148
6505∆ 4822 130 31933 1N5061
6510∆ 4822 130 34499 BZX79-B20
6537 4822 130 30842 BAV21
6540 4822 130 30842 BAV21
6550 4822 130 10807 BYM36C
6560 4822 130 10256 EGP20DL-5300
6570 4822 130 10256 EGP20DL-5300
6600 4822 130 34233 BZX79-B5V1
6610 4822 130 82037 HZT33
6653 4822 130 30862 BZX79-B9V1
6661∆ 4822 130 30621 1N4148
6663 4822 130 10859 TLDR5400
6690∆ 4822 130 31983 BAT85
6691∆ 4822 130 31983 BAT85
6692∆ 4822 130 31983 BAT85
6693∆ 4822 130 31983 BAT85

ce

7001 5322 130 41983 BC858B
7002 5322 130 41983 BC858B
7003 4822 130 60511 BC847B
7100 4822 130 60511 BC847B
7101 4822 130 60511 BC847B
7115 4822 130 60511 BC847B
7118 4822 130 60511 BC847B
7202 4822 209 13099 MSP3400C/C6
7203 4822 209 71873 TA7668BP
7204 4822 130 60511 BC847B
7204 4822 209 13646 TDA7057AQ/N2
7209 4822 130 60511 BC847B
7214 4822 130 40855 BC337
7214 4822 130 60511 BC847B
7215 4822 130 60511 BC847B
7216 4822 130 60511 BC847B
7220 4822 130 60511 BC847B
7225 4822 209 15828 TDA8347C/N3
7225 4822 209 16326 TDA8374/N3
7241 4822 209 90129 TDA8395/N2
7255 4822 209 12635 TDA4665/V4
7265 5322 130 60508 BC857B
7401 4822 209 13176 TDA9302H
7420 5322 130 60508 BC857B
7421 4822 130 60511 BC847B
7440 4822 130 60511 BC847B
7441 5322 130 44647 BC368
7445∆ 4822 130 10206 BUT11AX
7480 5322 130 44647 BC368
7501 4822 209 31555 TDA9830/V1
7502 4822 209 90462 TDA7056B/N1
7503 4822 130 40937 BC548B
7504 4822 130 40937 BC548B
7505 4822 130 40937 BC548B
7506∆ 4822 130 44197 BC558B
7507∆ 4822 130 44197 BC558B
7508 4822 130 40937 BC548B
7509 4822 130 40937 BC548B
7510 4822 130 40937 BC548B
7511 4822 130 40937 BC548B
7512 4822 130 40937 BC548B
7513 4822 130 40937 BC548B
7514 4822 130 40937 BC548B
7515 4822 130 40937 BC548B
7518∆ 4822 130 10806 STP6NA60FI
7520 4822 209 15684 MC44603AP
7541 4822 209 15829 TDA8139
7600 4822 209 16325 SAA5297PS/044
7600 4822 209 16332 SAA5297PS/057
7600 4822 209 16333 SAA5297PS/048
7600 4822 209 16435 SAA5297PS/060
7603 4822 130 60511 BC847B
7608 4822 130 60511 BC847B
7610∆ 4822 209 73852 PMBT2369
7620 4822 816 10769 ST24W04B6
7655 4822 130 60511 BC847B
7681 4822 130 60511 BC847B
7682 4822 130 60511 BC847B
7682∆ 5322 130 41982 BC848B

CRT panel [B]

Various

CRT 4822 212 11703 CRTPanel 17”
CRT 4822 212 11704 CRT Panel 21”

∆ 4822 255 70293 CRT socket 17"
∆ 4822 255 70261 CRT socket 21”

g

2313 4822 122 33575 220pF 5% 50V
2313 5322 122 33538 150pF 2% 63V
2323 4822 122 33216 270pF 5% 50V
2323 4822 122 33575 220pF 5% 50V
2333 4822 122 33216 270pF 5% 50V

12 Spareparts list

39L7.2E

2333 4822 126 10326 180pF 5% 63V
2341 4822 121 41689 100nF 10% 250V
2342∆ 4822 124 11508 22µF 250V 20%
2373 4822 121 41926 33nF 5% 630V

f

3311 4822 050 11002 1k 1% 0.4W
3313 4822 051 20479 47Ω 5% 0.1W
3314 4822 117 12818 18k 5% 3W
3315∆ 4822 052 10331 330Ω 5% 0.33W
3316∆ 4822 052 10221 220Ω 5% 0.33W
3317 4822 117 11896 1k5 20% 0.5W
3321 4822 051 10102 1k 2% 0.25W
3322∆ 4822 051 20471 470Ω 5% 0.1W
3322 4822 117 11452 430Ω 1% 0.1W
3323 4822 051 20479 47Ω 5% 0.1W
3324 4822 117 12818 18k 5% 3W
3325∆ 4822 052 10331 330Ω 5% 0.33W
3326∆ 4822 052 10221 220Ω 5% 0.33W
3327 4822 117 11896 1k5 20% 0.5W
3331 4822 051 10102 1k 2% 0.25W
3332∆ 4822 051 20471 470Ω 5% 0.1W
3332 4822 117 11452 430Ω 1% 0.1W
3333 4822 051 20479 47Ω 5% 0.1W
3334 4822 117 12818 18k 5% 3W
3335∆ 4822 052 10331 330Ω 5% 0.33W
3336∆ 4822 052 10221 220Ω 5% 0.33W
3337 4822 117 11896 1k5 20% 0.5W
3341∆ 4822 052 11109 10Ω 5% 0.5W
3342 4822 116 83874 220k 5% 0.5W
3347∆ 4822 052 10102 1k 5% 0.33W
3371∆ 4822 052 10108 1Ω 5% 0.33W
3371∆ 4822 052 10278 2Ω7 5% 0.33W
3372∆ 4822 052 10108 1Ω 5% 0.33W
3372∆ 4822 052 10278 2Ω7 5% 0.33W
3374 4822 117 11896 1k5 20% 0.5W
3312∆ 4822 051 20471 470Ω 5% 0.1W
3312 4822 117 11452 430Ω 1% 0.1W

b

5370 4822 157 50961 22µH
5370 4822 157 70468 56µH

d

6311 4822 130 30842 BAV21
6321 4822 130 30842 BAV21
6331∆ 4822 130 30621 1N4148
6332 4822 130 30842 BAV21
6341∆ 4822 130 30621 1N4148
6347 4822 130 34382 BZX79-B8V2

ce

7301 4822 130 41782 BF422
7302 4822 130 41782 BF422
7303 4822 130 41782 BF422
7304 4822 130 41646 BF423
7305 4822 130 41782 BF422
7306 4822 130 41646 BF423
7307 4822 130 41782 BF422
7308 4822 130 41646 BF423
7309 4822 130 41782 BF422

Mono panel [C]

Various

1020 4822 212 11558 Audio panel Mono +
1020 4822 212 11559 AudiopanelMono no

4822 267 10755 Con 19P
4822 267 10537 Con 5P
4822 492 70788 Spring fix. IC

1501 4822 242 81423 Filter OFWL9453M

g

2501 4822 121 10686 4.7nF 10% 50V
2502∆ 4822 124 40246 4.7µF 20% 63V
2503∆ 4822 124 40246 4.7µF 20% 63V
2504 4822 121 42868 220nF 5% 50V
2505 4822 124 41576 2.2µF 20% 50V
2506∆ 4822 124 41579 10µF 20% 50V
2507∆ 4822 124 41579 10µF 20% 50V
2508 4822 124 41576 2.2µF 20% 50V
2509∆ 4822 124 41579 10µF 20% 50V
2510∆ 4822 124 41579 10µF 20% 50V
2511∆ 4822 124 41579 10µF 20% 50V
2512∆ 4822 121 43996 33nF 5% 50V
2514 4822 121 51472 39nF 5% 250V
2515∆ 4822 121 43823 470nF 5% 50V

AM sound
AM sound

(38.9MHz)

2516 4822 121 43925 2.2nF 5% 50V
2517 4822 124 81029 100µF 20% 25V
2518 4822 121 42868 220nF 5% 50V
2519 5322 121 42386 100nF 5% 63V
2520 4822 124 22263 220µF 20% 25V
2521 4822 121 10686 4.7nF 10% 50V
2522∆ 4822 124 41579 10µF 20% 50V
2523 4822 124 81029 100µF 20% 25V
2524 4822 121 42868 220nF 5% 50V

f

3501 4822 116 83864 10k 5% 0.5W
3502 4822 116 52256 2k2 5% 0.5W
3503 4822 116 52256 2k2 5% 0.5W
3504 4822 116 52256 2k2 5% 0.5W
3505 4822 116 83864 10k 5% 0.5W
3506 4822 116 52175 100Ω 5% 0.5W
3508 4822 116 52176 10Ω 5% 0.5W
3509 4822 116 52257 22k 5% 0.5W
3510 4822 116 52244 15k 5% 0.5W
3511 4822 116 52283 4k7 5% 0.5W
3512 4822 050 11002 1k 1% 0.4W
3513 4822 116 52291 56k 5% 0.5W
3514 4822 116 52234 100k 5% 0.5W
3515 4822 116 52256 2k2 5% 0.5W
3516 4822 116 52243 1k5 5% 0.5W
3517 4822 116 52243 1k5 5% 0.5W
3518 4822 116 52256 2k2 5% 0.5W
3519 4822 116 52234 100k 5% 0.5W
3520 4822 116 52291 56k 5% 0.5W
3521 4822 050 11002 1k 1% 0.4W
3522 4822 116 52244 15k 5% 0.5W
3523 4822 050 11002 1k 1% 0.4W
3524 4822 050 11002 1k 1% 0.4W
3525 4822 116 83876 270Ω 5% 0.5W
3526 4822 050 11002 1k 1% 0.4W
3527 4822 116 52289 5k6 5% 0.5W
3528 4822 116 52238 12k 5% 0.5W
3529 4822 116 83883 470Ω 5% 0.5W
3530 4822 116 83961 6k8 5%
3531 4822 116 52249 1k8 5% 0.5W
3532 4822 116 52249 1k8 5% 0.5W
3533 4822 116 83872 220Ω 5% 0.5W
3534 4822 116 52228 680Ω 5% 0.5W
3536 4822 116 83961 6k8 5%
3537 4822 116 52269 3k3 5% 0.5W
3539 4822 116 52276 3k9 5% 0.5W
3540 4822 116 52256 2k2 5% 0.5W
3540 4822 116 52257 22k 5% 0.5W

b

5501 4822 152 20678 33µH

d

6501∆ 4822 130 30621 1N4148
6502∆ 4822 130 30621 1N4148
6503∆ 4822 130 30621 1N4148
6504∆ 4822 130 30621 1N4148
6505∆ 4822 130 30621 1N4148

ce

7501 4822 209 31555 TDA9830/V1
7502 4822 209 90462 TDA7056B/N1
7503 4822 130 40937 BC548B
7504 4822 130 40937 BC548B
7505 4822 130 40937 BC548B
7506∆ 4822 130 44197 BC558B
7507∆ 4822 130 44197 BC558B
7508 4822 130 40937 BC548B
7509 4822 130 40937 BC548B
7510 4822 130 40937 BC548B
7511 4822 130 40937 BC548B
7512 4822 130 40937 BC548B
7513 4822 130 40937 BC548B
7514 4822 130 40937 BC548B
7515 4822 130 40937 BC548B

Nicam +2CS panel [D]

Various

1020 4822 212 11561 Nicam panel + AM
1020 4822 212 11562 Nicam panel no AM
1020 4822 212 11563 2CS stereo panel

4822 267 10755 Con. 19P

4822 267 10537 Con. 5P
∆ 4822 492 62076 Spring fix IC
1202 4822 242 10688 OFWK9456M

1203 4822 242 81436 OFWK3953M

Sound
sound

38.9MHZ

38.9MHz

1204 4822 242 10434 X-tal 18,432MHz

g

2201 4822 126 13693 56pF 1% 63V
2202∆ 4822 126 13838 100nF 50V 20%
2203 4822 124 41576 2.2µF 20% 50V
2206 4822 126 13473 220nF 80-20% 50V
2207 4822 126 13751 47nF 10% 63V
2208 4822 124 41576 2.2µF 20% 50V
2210 5322 122 32658 22pF 5% 50V
2213 4822 126 13692 47pF 1% 63V
2214 4822 122 33926 12pF 50V
2215 4822 126 13692 47pF 1% 63V
2216 4822 126 13473 220nF 80-20% 50V
2217 4822 126 13473 220nF 80-20% 50V
2220 4822 126 13473 220nF 80-20% 50V
2221 4822 126 13473 220nF 80-20% 50V
2224∆ 4822 126 13838 100nF 50V 20%
2225 5322 122 32448 10pF 5% 50V
2226 5322 122 32448 10pF 5% 50V
2227∆ 4822 126 13838 100nF 50V 20%
2228∆ 4822 124 41579 10µF 20% 50V
2229∆ 4822 124 41579 10µF 20% 50V
2230∆ 4822 124 41579 10µF 20% 50V
2231∆ 4822 126 13838 100nF 50V 20%
2234∆ 4822 124 41579 10µF 20% 50V
2235 5322 126 10511 1nF 5% 50V
2236 5322 126 10511 1nF 5% 50V
2237 4822 126 13561 220nF 10% 16V
2238 4822 126 13561 220nF 10% 16V
2241∆ 4822 124 40246 4.7µF 20% 63V
2242∆ 4822 126 13838 100nF 50V 20%
2243 5322 126 10511 1nF 5% 50V
2244 5322 126 10511 1nF 5% 50V
2245 4822 124 41751 47µF 20% 50V
2246 5322 122 32448 10pF 5% 50V
2247 5322 126 10511 1nF 5% 50V
2248 4822 124 81151 22µF 50V
2249 5322 126 10511 1nF 5% 50V
2250 4822 124 41751 47µF 20% 50V
2251 5322 122 32448 10pF 5% 50V
2252∆ 4822 124 41579 10µF 20% 50V
2253∆ 5322 126 10223 4.7nF 10% 63V
2254∆ 5322 126 10223 4.7nF 10% 63V
2255∆ 4822 124 41579 10µF 20% 50V
2256 4822 126 13561 220nF 10% 16V
2257 4822 124 22263 220µF 20% 25V
2260 4822 124 40255 100µF 20% 63V
2261 4822 124 40255 100µF 20% 63V
2262∆ 4822 124 41579 10µF 20% 50V
2263∆ 4822 124 41579 10µF 20% 50V
2264 4822 124 81029 100µF 20% 25V
2265 4822 126 13561 220nF 10% 16V
2266 4822 126 13561 220nF 10% 16V
2267 4822 126 13561 220nF 10% 16V
2268 4822 121 42868 220nF 5% 50V
2271 5322 126 10511 1nF 5% 50V
2272 5322 126 10511 1nF 5% 50V
2273 4822 126 13561 220nF 10% 16V
2274∆ 4822 126 13838 100nF 50V 20%
2276 4822 126 13694 68pF 1% 63V
2277 4822 126 13694 68pF 1% 63V
2278 5322 126 10511 1nF 5% 50V
2279 5322 126 10511 1nF 5% 50V
2280 5322 126 10511 1nF 5% 50V
2281 5322 126 10511 1nF 5% 50V

f

3201 4822 117 11449 2k2 1% 0.1W
3202 4822 117 10833 10k 1% 0.1W
3203 4822 117 11449 2k2 1% 0.1W
3207 4822 117 10833 10k 1% 0.1W
3211 4822 117 11449 2k2 1% 0.1W
3213 4822 116 83864 10k 5% 0.5W
3214 4822 051 20562 5k6 5% 0.1W
3215∆ 4822 051 20101 100Ω 5% 0.1W
3216 4822 116 52175 100Ω 5% 0.5W
3217 4822 116 52175 100Ω 5% 0.5W
3222 4822 051 20562 5k6 5% 0.1W
3224 4822 117 10834 47k 1% 0.1W
3229 4822 051 20561 560Ω 5% 0.1W
3230 4822 117 10834 47k 1% 0.1W
3233 4822 117 11449 2k2 1% 0.1W
3234 4822 117 10834 47k 1% 0.1W
3235 4822 117 10834 47k 1% 0.1W
3238 4822 051 20561 560Ω 5% 0.1W
3239 4822 117 11449 2k2 1% 0.1W
3240 4822 051 20333 33k 5% 0.1W
3242 4822 051 20333 33k 5% 0.1W
3243 4822 117 11437 8k2 1% 0.1W
3244 4822 117 11154 1k 1% 0.1W
3246 4822 116 83864 10k 5% 0.5W
3247∆ 4822 052 10109 10Ω 5% 0.33W
3248∆ 4822 051 20471 470Ω 5% 0.1W
3249 4822 116 83864 10k 5% 0.5W
3250 4822 116 52175 100Ω 5% 0.5W
3250 4822 116 52256 2k2 5% 0.5W
3250 4822 116 83884 47k 5% 0.5W
3251 4822 051 20681 680Ω 5% 0.1W
3252∆ 4822 051 20332 3k3 5% 0.1W

3253∆ 4822 051 20153 15k 5% 0.1W
3254 4822 116 83864 10k 5% 0.5W
4xxx 4822 051 10008 0Ω 5% 0.25W (1206)
4xxx 4822 051 20008 0Ω 5% 0.25W

b

5201 4822 157 10586 2.2µH 10%
5202 4822 157 11014 Coil 78MHz
5203 4822 157 53139 4.7µH
5204∆ 4822 157 51462 10µH
5205∆ 4822 157 51462 10µH
5206 4822 153 20251 18µH 10%
5207∆ 4822 157 51462 10µH

d

6201∆ 4822 130 30621 1N4148
6202∆ 4822 130 30621 1N4148
6204∆ 4822 130 30621 1N4148
6205∆ 4822 130 34173 BZX79-B5V6
6206∆ 4822 130 30621 1N4148
6207∆ 4822 130 30621 1N4148

ce

7201 4822 209 16441 TDA9810/V1
7202 4822 209 13099 MSP3400C/C6
7202 4822 209 15832 MSP3410D-PP-B4
7203 4822 209 71873 TA7668BP
7204 4822 209 13646 TDA7057AQ/N2
7205 4822 130 60511 BC847B
7207 4822 130 60511 BC847B
7208 5322 130 41983 BC858B
7209 4822 130 60511 BC847B
7210 4822 130 60511 BC847B
7214 4822 130 40855 BC337
7215 4822 130 60511 BC847B
7216 4822 130 60511 BC847B