Philips L04E AB Service Manual

Colour Television Chassis

L04E

AB

E_14970_035.eps

080904

Contents Page Contents Page

1. Technical Specifications, Connections, and Chassis
Overview 2

2. Safety Instructions, Warnings, and Notes 4

3. Directions for Use 7

4. Mechanical Instructions 8

5. Service Modes, Error Codes, and Fault Finding 9

6. Block Diagrams, Testpoint Overviews, and

Waveforms

Wiring Diagram 21
Block Diagram Supply and Deflection 22
Testpoint Overview Mono Carrier 23
Block Diagram Video 24
Block Diagram Audio 25
Block Diagram IBO Zapper Panel 26
I2C and Supply Voltage Overview 27

7. Circuit Diagrams and PWB Layouts Diagram PWB
Mono Carrier: Power Supply (A1) 28 40-45
Mono Carrier: Diversity Table for A1 29
Mono Carrier: Line & Frame Deflection (A2) 30 40-45
Mono Carrier: Diversity Table for A2 31
Mono Carrier: Tuner IF (A3) 32 40-45
Mono Carrier: Hercules (A4) 33 40-45
Mono Carrier: Features & Connectivities (A5)34 40-45
Mono Carrier: Class D - Audio Amplifier (A6) 35 40-45
Mono Carrier: Audio Amplifier (A7) 36 40-45
Mono Carrier: Rear I/O Scart (A8) 37 40-45
Mono Carrier: Front Control (A9) 38 40-45
Mono Carrier: DVD Power Supply (A10) 39 40-45
CRT Panel (B1) 46 48-49
CRT Panel: Eco Scavem (B2) 47 48-49
CRT Interface Panel (B3) 50 50
Side AV + Headphone Panel (PV-2) (D) 51 52
Side AV + Headphone Panel (FL-13) (D) 53 54
Top Control Panel (PV2) (E) 55 55

©

Copyright 2006 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.

Top Control Panel (FL-13) E) 56 56
Linearity & Panorama Panel (G) 57 57
LTI/CTI PIP Panel (H) 58 59
Front Interface Panel (FL-13) (J) 60 60
Front Interface Panel (PV-2) (J) 61 61
Front Interface and Keyboard Panel (J) 62 63
IBO Zapper Panel: MOJO (K1) 64 71-72
IBO Zapper Panel: Flash Memory (K2) 65 71-72
IBO Zapper Panel: Power Supply (K3) 66 71-72
IBO Zapper Panel: Interface (K4) 67 71-72
IBO Zapper Panel: Analog Back End (K5) 68 71-72
IBO Zapper Panel: Front End (K6) 69 71-72
IBO Zapper Panel: Common Interface (K7) 70 71-72

8. Alignments 73

9. Circuit Descriptions, List of Abbreviations, and IC
Data Sheets 81
Abbreviation list 83
IC Data Sheets 85

10. Spare Parts List 87

11. Revision List 93

Published by WS 0666 BG CD Customer Service Printed in the Netherlands Subject to modification EN 3122 785 14971

EN 2 L04E AB1.

Technical Specifications, Connections, and Chassis Overview

1. Technical Specifications, Connections, and Chassis Overview

Index of this chapter:

1.1 Technical Specifications

1.2 Connections

1.3 Chassis Overview

Notes:

• Described specifications are valid for the whole product
range.

• Figures below can deviate slightly from the actual situation,
due to different set executions.

1.1 Technical Specifications

1.1.1 Vision

Display type : DV-CRT-RF

:DV-CRT-FSQ
: DV-CRT-SF

Screen size : 28” (70 cm), 4:3

: 32” (82 cm), 16:9
Tuning system : PLL
TV Colour systems : PAL B/G, B/H, D/K, I

: SECAM

: SECAM B/G, D/K, L/L'
Video playback : NTSC
Channel selections : 100 presets

: UVSH
Aerial input : 75 ohm, Coax

:IEC-type

1.1.2 Sound

Sound systems : NICAM Stereo
Maximum power : 2x10/ 2x5 W_rms

(int.)

1.2 Connections

Note: The following connector colour abbreviations are used

(acc. to DIN/IEC 757): Bk= Black, Bu= Blue, Gn= Green, Gy=
Grey, Rd= Red, Wh= White, Ye= Yellow.

1.2.1 Side Connections

SIDE I/O

S-Video (optional)

Video

L
Audio
R

E_14480_111.eps

060504

Figure 1-1 Side I/O

SVHS: Y/C - In (Hosiden) (optional)

1 -Ground Gnd H
2 -Ground Gnd H
3 -Y 1 V_pp / 75 ohm j
4 -C 0.3 V_pp / 75 ohm j

Audio / Video In

Ye - Video (CVBS) 1 V_pp / 75 ohm jq
Wh - Audio - L 0.5 V_rms / 10 kohm jq
Rd - Audio - R 0.5 V_rms / 10 kohm jq
Bk - Headphone 8 - 600 Ohm / 4 mW ot

1.2.2 Rear Connections

1.1.3 Miscellaneous

Power supply:

- Mains voltage : 220 - 240 V_ac

- Mains frequency : 50/60 Hz

Ambient conditions:

- Temperature range : +5 to +40 deg. C

- Maximum humidity : 90 % R.H.

Power consumption

- Normal operation : from 60 W (21”)

: to 91 W (32”)

- Standby : < 1 W

SMART

CARD

SERVICE

CONNECTOR

AUDI O

OUT

S

L

R

EXTERNAL 2

EXTERNAL 1

E_14970_033.eps

070904

DIGITAL OUT

75 Ohm

SERVICE

CONNECTOR

Figure 1-2 Rear connections

Aerial In

1 -F-type Coax, 75 ohm D

Audio Out

1 -Subwoofer Var. level (optional) kq
Wh - Audio - L 0.5 V_rms / 1 kohm kq
Rd - Audio - R 0.5 V_rms / 1 kohm kq

Technical Specifications, Connections, and Chassis Overview

EN 3L04E AB 1.

External 1: RGB/YUV - In and CVBS - In/Out

20

21

2

E_06532_001.eps

050404

1

Figure 1-3 SCART connector

1 -Audio - R 0.5 V_rms / 1 kohm k
2 -Audio - R 0.5 V_rms / 10 kohm j
3 -Audio - L 0.5 V_rms / 1 kohm k
4 -Audio - gnd Ground H
5 -Blue - gnd Ground H
6 -Audio - L 0.5 V_rms / 10 kohm j
7 -Blue/U - in 0.7 V_pp / 75 ohm j
8 -CVBS - status 0 - 2 V: INT

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

9 -Green - gnd Ground H
10 - n.c.
11 - Green/Y - in 0.7 V_pp / 75 ohm j
12 - n.c.
13 - Red - gnd Ground H
14 - FBL - gnd Ground H
15 - Red/V - in 0.7 V_pp / 75 ohm j
16 - Status/FBL 0 - 0.4 V: INT

1 - 3 V: EXT / 75 ohm j
17 - Video Ground H
18 - Video Ground H
19 - CVBS - out 1 V_pp / 75 ohm k
20 - CVBS - in 1 V_pp / 75 ohm j
21 - Shielding Ground H

External 2: CVBS- In and SVHS - In

20

21

2

E_06532_001.eps

050404

1

Figure 1-4 SCART connector

1 -Audio - R 0.5 V_rms / 1 kohm k
2 -Audio - R 0.5 V_rms / 10 kohm j
3 -Audio - L 0.5 V_rms / 1 kohm k
4 -Audio - gnd Ground H
5 -Blue - gnd Ground H
6 -Audio - L 0.5 V_rms / 10 kohm j
7-n.c.
8 - CVBS - status 0 - 2 V: INT

4.5 - 7 V: EXT 16:9

9.5 - 12 V: EXT 4:3 j

9 - Green - gnd Ground H
10 - n.c.
11 - n.c.
12 - n.c.
13 - Red - gnd Ground H
14 - FBL - gnd Ground H
15 - YC-C - in 0.7 V_pp / 75 ohm j
16 - n.c.
17 - Video Ground H
18 - Video Ground H
19 - CVBS - out 1 V_pp / 75 ohm k
20 - Y/CVBS - in 1 V_pp / 75 ohm j
21 - Shielding Ground H

1.3 Chassis Overview

B1

CRT

ECO

B2

SCAVEM

SIDE AV PANEL +

D

HEADPHONE

LTI/CTI INTERFACE

H

PAN E L

K

LINEARITY &

G

PANORAMA PANEL

IBO ZAPPER
PAN E L

CRT PANEL

MONO

CARRIER

TOP CONTROL PANEL

FRONT INTERFACE PANEL

POWER SUPPLY

LINE & FRAME DEFLECTION

TUNER IF

HERCULES

FEATURES & CONNECTIVITIES

CLASS D AUDIO AMPLIFIER

AUDIO AMPLIFIER

REAR I/O SCART

FRONT CONTROL

DVD POWER SUPPLY

E_14970_034.eps

E

J

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

131205

Figure 1-5 PWB location

EN 4 L04E AB2.

Safety Instructions, Warnings, and Notes

2. Safety Instructions, Warnings, and Notes

Index of this chapter:

2.1 Safety Instructions

2.2 Maintenance Instructions

2.3 Warnings

2.4 Notes

2.1 Safety Instructions

Safety regulations require the following during a repair:

• Connect the set to the Mains/AC Power via an isolation
transformer (> 800 VA).

• Replace safety components, indicated by the symbol h,
only by components identical to the original ones. Any
other component substitution (other than original type) may
increase risk of fire or electrical shock hazard.

• Wear safety goggles when you replace the CRT.

Safety regulations require that after a repair, the set must be
returned in its original condition. Pay in particular attention to
the following points:

• General repair instruction: as a strict precaution, we advise
you to re-solder the solder connections through which the
horizontal deflection current flows. In particular this is valid
for the:

1. Pins of the line output transformer (LOT).

2. Fly-back capacitor(s).

3. S-correction capacitor(s).

4. Line output transistor.

5. Pins of the connector with wires to the deflection coil.

6. Other components through which the deflection current

flows.

Note: This re-soldering is advised to prevent bad connections
due to metal fatigue in solder connections, and is therefore only
necessary for television sets more than two years old.

• Route the wire trees and EHT cable correctly and secure
them with the mounted cable clamps.

• Check the insulation of the Mains/AC Power lead for
external damage.

• Check the strain relief of the Mains/AC Power cord for
proper function, to prevent the cord from touching the CRT,
hot components, or heat sinks.

• Check the electrical DC resistance between the Mains/AC
Power plug and the secondary side (only for sets that have
a Mains/AC Power isolated power supply):

1. Unplug the Mains/AC Power cord and connect a wire

between the two pins of the Mains/AC Power plug.

2. Set the Mains/AC Power switch to the "on" position

(keep the Mains/AC Power cord unplugged!).

3. Measure the resistance value between the pins of the

Mains/AC Power plug and the metal shielding of the
tuner or the aerial connection on the set. The reading
should be between 4.5 Mohm and 12 Mohm.

4. Switch "off" the set, and remove the wire between the

two pins of the Mains/AC Power plug.

• Check the cabinet for defects, to prevent touching of any
inner parts by the customer.

2.2 Maintenance Instructions

We recommend a maintenance inspection carried out by
qualified service personnel. The interval depends on the usage
conditions:

• When a customer uses the set under normal
circumstances, for example in a living room, the
recommended interval is three to five years.

• When a customer uses the set in an environment with
higher dust, grease, or moisture levels, for example in a
kitchen, the recommended interval is one year.

• The maintenance inspection includes the following actions:

1. Perform the “general repair instruction” noted above.

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

3. Clean the picture tube panel and the neck of the picture
tube.

2.3 Warnings

• In order to prevent damage to ICs and transistors, avoid all
high voltage flashovers. In order to prevent damage to the
picture tube, use the method shown in figure “Discharge
picture tube”, to discharge the picture tube. Use a high
voltage probe and a multi-meter (position V
until the meter reading is 0 V (after approx. 30 s).

V

Figure 2-1 Discharge picture tube

• All ICs and many other semiconductors are susceptible to
electrostatic discharges (ESD w). Careless handling
during repair can reduce life drastically. Make sure that,
during repair, 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:
– Complete kit ESD3 (small tablemat, wristband,

connection box, extension cable and earth cable) 4822
310 10671.

– Wristband tester 4822 344 13999.

• Be careful during measurements in the high voltage
section.

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

• When you align the set, use plastic rather than metal tools.
This will prevent any short circuits and prevents circuits
from becoming unstable.

2.4 Notes

2.4.1 General

• Measure the voltages and waveforms with regard to the
chassis (= tuner) ground (H), or hot ground (I), depending
on the tested area of circuitry. The voltages and waveforms
shown in the diagrams are indicative. Measure them in the
Service Default Mode (see chapter 5) with a colour bar
signal and stereo sound (L: 3 kHz, R: 1 kHz unless stated
otherwise) and picture carrier at 475.25 MHz for PAL, or

61.25 MHz for NTSC (channel 3).

• Where necessary, measure the waveforms and voltages
with (D) and without (E) aerial signal. Measure the
voltages in the power supply section both in normal
operation (G) and in stand-by (F). These values are
indicated by means of the appropriate symbols.

• The semiconductors indicated in the circuit diagram and in
the parts lists, are interchangeable per position with the

). Discharge

DC

E_06532_007.eps

250304

Safety Instructions, Warnings, and Notes

EN 5L04E AB 2.

semiconductors in the unit, irrespective of the type
indication on these semiconductors.

• Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the “double-D symbol”, are
trademarks of Dolby Laboratories.

2.4.2 Schematic Notes

• All resistor values are in ohms, and the value multiplier is
often used to indicate the decimal point location (e.g. 2K2
indicates 2.2 kohm).

• Resistor values with no multiplier may be indicated with
either an "E" or an "R" (e.g. 220E or 220R indicates 220
ohm).

• All capacitor values are given in micro-farads (µ= x10
nano-farads (n= x10

• Capacitor values may also use the value multiplier as the
decimal point indication (e.g. 2p2 indicates 2.2 pF).

• An "asterisk" (*) indicates component usage varies. Refer
to the diversity tables for the correct values.

• The correct component values are listed in the Spare Parts
List. Therefore, always check this list when there is any
doubt.

2.4.3 Rework on BGA (Ball Grid Array) ICs

General

Although (LF)BGA assembly yields are very high, there may
still be a requirement for component rework. By rework, we
mean the process of removing the component from the PWB
and replacing it with a new component. If an (LF)BGA is
removed from a PWB, the solder balls of the component are
deformed drastically so the removed (LF)BGA has to be
discarded.

Device Removal

As is the case with any component that is being removed, it is
essential when removing an (LF)BGA, that the board, tracks,
solder lands, or surrounding components are not damaged. To
remove an (LF)BGA, the board must be uniformly heated to a
temperature close to the reflow soldering temperature. A
uniform temperature reduces the risk of warping the PWB.
To do this, we recommend that the board is heated until it is
certain that all the joints are molten. Then carefully pull the
component off the board with a vacuum nozzle. For the
appropriate temperature profiles, see the IC data sheet.

Area Preparation

When the component has been removed, the vacant IC area
must be cleaned before replacing the (LF)BGA.
Removing an IC often leaves varying amounts of solder on the
mounting lands. This excessive solder can be removed with
either a solder sucker or solder wick. The remaining flux can be
removed with a brush and cleaning agent.
After the board is properly cleaned and inspected, apply flux on
the solder lands and on the connection balls of the (LF)BGA.
Note: Do not apply solder paste, as this has been shown to
result in problems during re-soldering.

Device Replacement

The last step in the repair process is to solder the new
component on the board. Ideally, the (LF)BGA should be
aligned under a microscope or magnifying glass. If this is not
possible, try to align the (LF)BGA with any board markers.
So as not to damage neighbouring components, it may be
necessary to reduce some temperatures and times.

More Information

For more information on how to handle BGA devices, visit this
URL: www.atyourservice.ce.philips.com (needs subscription,
not available for all regions). After login, select “Magazine”,
then go to “Repair downloads”. Here you will find Information
on how to deal with BGA-ICs.

-9

), or pico-farads (p= x10

-12

2.4.4 Lead-free Solder

Philips CE is producing lead-free sets (PBF) from 1.1.2005
onwards.

Identification: The bottom line of a type plate gives a 14-digit
serial number. Digits 5 and 6 refer to the production year, digits
7 and 8 refer to production week (in example below it is 1991
week 18).

32PF9968/10

MODEL :

PROD.NO:

AG 1A0617 000001

-6

),

).

Figure 2-2 Serial number example

Regardless of the special lead-free logo (which is not always
indicated), one must treat all sets from this date onwards
according to the rules as described below.

MADE IN BELGIUM

220-240V 50/60Hz

~

VHF+S+H+UHF

S

128W

BJ3.0E LA

E_06532_024.eps

130606

P

b

Figure 2-3 Lead-free logo

Due to lead-free technology some rules have to be respected
by the workshop during a repair:

• Use only lead-free soldering tin Philips SAC305 with order
code 0622 149 00106. If lead-free solder paste is required,
please contact the manufacturer of your soldering
equipment. In general, use of solder paste within
workshops should be avoided because paste is not easy to
store and to handle.

• Use only adequate solder tools applicable for lead-free
soldering tin. The solder tool must be able:
– To reach a solder-tip temperature of at least 400°C.
– To stabilise the adjusted temperature at the solder-tip.
– To exchange solder-tips for different applications.

• Adjust your solder tool so that a temperature of around
360°C - 380°C is reached and stabilised at the solder joint.
Heating time of the solder-joint should not exceed ~ 4 sec.
Avoid temperatures above 400°C, otherwise wear-out of
tips will increase drastically and flux-fluid will be destroyed.
To avoid wear-out of tips, switch “off” unused equipment or
reduce heat.

• Mix of lead-free soldering tin/parts with leaded soldering
tin/parts is possible but PHILIPS recommends strongly to
avoid mixed regimes. If this cannot be avoided, carefully
clean the solder-joint from old tin and re-solder with new
tin.

• Use only original spare-parts listed in the Service-Manuals.
Not listed standard material (commodities) has to be
purchased at external companies.

• Special information for lead-free BGA ICs: these ICs will be
delivered in so-called "dry-packaging" to protect the IC
against moisture. This packaging may only be opened
shortly before it is used (soldered). Otherwise the body of
the IC gets "wet" inside and during the heating time the
structure of the IC will be destroyed due to high (steam-)
pressure inside the body. If the packaging was opened
before usage, the IC has to be heated up for some hours
(around 90°C) for drying (think of ESD-protection!).
Do not re-use BGAs at all!

• For sets produced before 1.1.2005, containing leaded
soldering tin and components, all needed spare parts will
be available till the end of the service period. For the repair
of such sets nothing changes.

EN 6 L04E AB2.

In case of doubt whether the board is lead-free or not (or with
mixed technologies), you can use the following method:

• Always use the highest temperature to solder, when using
SAC305 (see also instructions below).

• De-solder thoroughly (clean solder joints to avoid mix of
two alloys).

Caution: For BGA-ICs, you must use the correct temperature­profile, which is coupled to the 12NC. For an overview of these
profiles, visit the website www.atyourservice.ce.philips.com
(needs subscription, but is not available for all regions)
You will find this and more technical information within the
"Magazine", chapter "Repair downloads".
For additional questions please contact your local repair help
desk.

2.4.5 Alternative BOM identification

In September 2003, Philips CE introduced a change in the way
the serial number (or production number, see Figure 2-2) is
composed. From this date on, the third digit in the serial
number (example: AG2B0335000001) indicates the number of
the alternative BOM (Bill of Materials used for producing the
specific model of TV set). It is possible that the same TV model
on the market is produced with e.g. two different types of
displays, coming from two different O.E.M.s.
By looking at the third digit of the serial number, the service
technician can see if there is more than one type of B.O.M.
used in the production of the TV set he is working with. He can
then consult the At Your Service Web site, where he can type
in the Commercial Type Version Number of the TV set (e.g.
28PW9515/12), after which a screen will appear that gives
information about the number of alternative B.O.M.s used.
If the third digit of the serial number contains the number 1
(example: AG1B033500001), then there is only one B.O.M.
version of the TV set on the market. If the third digit is a 2
(example: AG2B0335000001), then there are two different
B.O.M.s. Information about this is important for ordering

the correct spare parts!

For the third digit, the numbers 1...9 and the characters A...Z
can be used, so in total: 9 plus 26 = 35 different B.O.M.s can
be indicated by the third digit of the serial number.

Safety Instructions, Warnings, and Notes

2.4.6 Practical Service Precautions

• It makes sense to avoid exposure to electrical shock.
While some sources are expected to have a possible
dangerous impact, others of quite high potential are of
limited current and are sometimes held in less regard.

• Always respect voltages. While some may not be
dangerous in themselves, they can cause unexpected
reactions that are best avoided. Before reaching into a
powered TV set, it is best to test the high voltage insulation.
It is easy to do, and is a good service precaution.

3. Directions for Use

You can download this information from the following website:

http://www.philips.com/support

Directions for Use

EN 7L04E AB 3.

EN 8 L04E AB4.

Mechanical Instructions

4. Mechanical Instructions

Index of this chapter:

4.1 IBO Zapper Assy Removal

4.2 IBO Zapper Module Removal

4.3 IBO Zapper Panel Removal

4.4 Module Re-assembly

Notes:

• Only the digital module disassembly is described. For other
disassembly instructions, see the Service manual for
L04E AA 3122 785 14480.

• Figures below can deviate slightly from the actual situation,
due to different set executions.

• Make sure that both the ComPair connector and the UART
connector are shielded off with a piece of insulating tape
after repair for ESD reasons. Place this tape over the holes
in the rear cover of the set.

4.1 IBO Zapper Assy Removal

1. Remove the fixation screw [1].

2. Release the fixation clamp [2] and pull the bracket
backwards.

4.3 IBO Zapper Panel Removal

1

Figure 4-2 IBO Zapper Module Top Shield Removal

E_14970_037.eps

080904

1

3

2

Figure 4-1 IBO Zapper bracket

4.2 IBO Zapper Module Removal

1. Disconnect all cables that lead to the module.

2. Unlock the clip at the left side of the bracket [3] and pull out
the IBO Zapper module.

E_14970_039.eps

091205

2

Figure 4-3 IBO Zapper Panel Removal

1. Unscrew the shield mounting screws [1] and lift the top
shield.

2. Unscrew the IBO Zapper panel mounting screws [2] and
take out the IBO Zapper panel.

4.4 Module Re-assembly

To re-assemble the whole module, do all processes in reverse
order.

E_14970_038.eps

080904

Service Modes, Error Codes, and Fault Finding

5. Service Modes, Error Codes, and Fault Finding

EN 9L04E AB 5.

Index of this chapter:

5.1 Test Points

5.2 Service Modes

5.3 Problems and Solving Tips Related to CSM

5.4 Service Tools

5.5 Error Codes

5.6 The Blinking LED Procedure

5.7 Protections

5.8 Fault Finding and Repair Tips

5.1 Test Points

The chassis is equipped with test points printed on the circuit
board assemblies. These test points refer to the functional
blocks:

Table 5-1 Test point overview

Test point Circuit Diagram

F508, F535, F536, F537, F552, F561, F563,
F573, F664,I513, I518, I519, I524, I531, I533,
I546

F401, F412, F413, F414, F418, F452, F453,
F455, F456, F458, F459, F460, F461, I408,
I416, I417, I420, I462, I468

F003, F004, I001, I002 Tuner IF A3

F201, F203, F205, F206 Hercules A4

F240, F241, F242 Features &

F952, F955, I951, I952 Audio Amplifier A7

F692 Front Control A9

F331, F332, F333, F338, F339, F341, F351,
F353, F354

F361, F362, F381, F382 ECO Scavem B2

Power supply A1

Line + Frame
Deflection

Connectivities

CRT Panel B1

Perform measurements under the following conditions:

• Television set in Service Default Alignment Mode.

• Video input: Colour bar signal.

• Audio input: 3 kHz left channel, 1 kHz right channel.

5.2 Service Modes

Service Default mode (SDM) & Service Alignment Mode (SAM)
offers several features for the service technician, while the
Customer Service Mode (CSM) & Digital Customer Service
Mode (DCSM) are used for communication between the call
centre and the customer.

This chassis also offers the option of using ComPair, a
hardware interface between a computer and the TV chassis. It
offers the abilities of structured troubleshooting, error code
reading, and software version readout for all these chassis.
Minimum requirements for ComPair: a Pentium processor, a
Windows OS, and a CD-ROM drive (see "ComPair" section).

Table 5-2 Software cluster overview

SW Clusters SW Version First Mask

L4LEF1 L04EF11.0

L4LEF2 L04EF21.0

L4LEF3 L04EF31.0

L4LEF4 L04EF41.0

L4LEF5 L04EF51.0

L4LEF6 L04EF61.0

L4LEF7 L04EF71.0 TDA12020H1/N1B11

A2

5.2.1 Service Default Mode (SDM)

TDA12020H1/N1B11

TDA12021H1/N1B11

TDA12020H1/N1B11

TDA12021H1/N1B11

TDA12020H1/N1B11

TDA12021H1/N1B11

TDA12020H1/N1B11

TDA12021H1/N1B11

TDA12020H1/N1B11

TDA12021H1/N1B11

TDA12020H1/N1B11

TDA12021H1/N1B11

Remarks

Western Europe

Radio 4:3 set only.

Eastern Europe

Radio 4:3 set only.

Western Europe

PIP

Eastern Europe

PIP

Western Europe

Radio & PIP.

Eastern Europe

Radio & PIP.

ICON UI

Purpose

A5

• To create a predefined setting for measurements to be
made.

• To override software protections.

• To start the blinking LED procedure.

Specifications

• Tuning frequency: 475.25 MHz.

• Colour system: PAL/SECAM.

• All picture settings at 50%
(brightness, colour contrast, hue).

• Bass, treble and balance at 50 %; volume at 25 %.

• All service-unfriendly modes (if present) are disabled. The
service unfriendly modes are:
– Timer / Sleep timer.
– Child / parental lock.
– Blue mute.
– Hotel / hospital mode.
– Auto shut off (when no 'IDENT' video signal is received

for 15 minutes).
– Skipping of non-favourite presets / channels.
– Auto-storage of personal presets.
– Auto user menu time-out.
– Auto Volume Levelling (AVL).

How to activate

To activate SDM, use one of the following methods:

• Press the following key sequence on the remote control
transmitter: '0 6 2 5 9 6' directly followed by the 'MENU'
button (do not allow the display to time out between entries
while keying the sequence).

• Short jumper wires 9252 and 9275 on the family board (see
Fig. 8-1) and apply mains. Then press the power button
(remove the short after start-up).
Caution: activating SDM by shorting wires 9252 and 9275
will override the +8V-protection. Do this only for a short
period. When doing this, the service-technician must know
exactly what he is doing, as it could damage the television
set.

• Or via ComPair (with the ComPair ‘Tools’, it should be
possible to activate SDM via the ComPair interface).

EN 10 L04E AB5.

Service Modes, Error Codes, and Fault Finding

After activating SDM, the following screen is visible, with SDM
in the upper right corner of the screen to indicate that the
television is in Service Default Alignment Mode.

00028 L04EF30.10 SDM
ERR 0 0 0 0 0
OP 000 057 140 032 120 128 000

E_14480_139.eps

Figure 5-1 SDM menu

How to navigate

Use one of the following methods:

• When you press the MENU button on the remote control,
the set will switch on the normal user menu in the SDM
mode.

• On the TV, press and hold the 'VOLUME down' and press
the 'CHANNEL down' for a few seconds, to switch from
SDM to SAM and reverse.

How to exit

Switch the set to STANDBY by pressing the POWER button on
the remote control transmitter or the television set.
If you turn the television set off by removing the Mains (i.e.,
unplugging the television) without using the POWER button,
the television set will remain in SDM when mains is re-applied,
and the error buffer is not cleared.

5.2.2 Service Alignment Mode (SAM)

Purpose

• To change option settings.

• To display / clear the error code buffer.

• To perform alignments.

Specifications

• Run timer (maximum five digits displayed)

• Software version, Error & Option Bytes display

• Clear error buffer.

• Option settings

•AKB switching

• Software alignments (Tuner, 2 Tuner PIP, White Tone,
Geometry & Audio)

• NVM Editor

• ComPair Mode switching

How to activate

To activate SAM, use one of the following methods:

• Press the following key sequence on the remote control
transmitter: '0 6 2 5 9 6' directly followed by the “On Screen
Display icon “i +” button (do not allow the display to time
out between entries while keying the sequence).

• Or via ComPair.

250504

After activating SAM, the following screen is visible, with SAM
in the upper right corner of the screen to indicate that the
television is in Service Alignment Mode.

00028 L04EF30.10 SAM
ERR 0 0 0 0 0

OP 000 057 140 032 120 128 000

. Clear Clear ?
. Options
. AKB On
. Tuner
. 2 Tuner PIP*
. White Tone
. Geometry
. Audio
. NVM Editor
. ComPair on

optional

*

Figure 5-2 SAM menu

Menu explanation

1. LLLLL. This represents the run timer. The run timer counts
normal operation hours, but does not count standby hours
(maximum four digits displayed).

2. AAABCD-X.Y. This is the software identification of the
main microprocessor:
– A = the project name (L04).
– B = the region: E= Europe, A= Asia Pacific, U= NAFTA,

L= LATAM.

– C = the software diversity:

• Europe: T = 1 page TXT, F = Full TXT, V = Voice
control.

• LATAM and NAFTA: N = Stereo non-dBx, S =
Stereo dBx.

• Asian Pacific: F = Full TXT, N = non TXT, C =
NTSC.

• ALL regions: M = mono, D = DVD, Q = Mk2.

– D = the language cluster number.
– X = the main software version number (updated with a

major change that is incompatible with previous
versions).

– Y = the sub software version number (updated with a

minor change that is compatible with previous
versions).

3. SAM. Indication of the Service Alignment Mode.

4. Error Buffer. Shows all errors detected since the last time
the buffer was erased. Five errors possible.

5. Option Bytes. Used to set the option bytes. See 'Options'
in the Alignments section for a detailed description. Seven
codes are possible.

6. Clear. Erases the contents of the error buffer. Select the
CLEAR menu item and press the MENU RIGHT key. The
content of the error buffer is cleared.

7. Options. Used to set the option bits. See 'Options' in the
Alignments section for a detailed description.

8. AKB. Used to disable (Off) or enable (On) the 'black
current loop' (AKB = Auto Kine Bias).

9. Tuner. Used to align the tuner. See 'Tuner' in the
Alignments section for a detailed description.

10. 2 Tuner PIP. Used to align the tuner PIP (optional)

11. White Tone. Used to align the white tone. See 'White Tone'
in the Alignments section for a detailed description.

12. Geometry. Used to align the geometry settings of the
television. See 'Geometry' in the Alignments section for a
detailed description.

E_14480_140.eps

260504

Service Modes, Error Codes, and Fault Finding

EN 11L04E AB 5.

13. Audio. No audio alignment is necessary for this television
set.

14. NVM Editor. Used to change the NVM data in the
television set.

15. ComPair Mode. Used to switch on the television to ISP
mode (for uploading software)

How to navigate

• In SAM, select menu items with the MENU UP/DOWN keys
on the remote control transmitter. The selected item will be
highlighted. When not all menu items fit on the screen, use
the MENU UP/DOWN keys to display the next / previous
menu items.

• With the MENU LEFT/RIGHT keys, it is possible to:
– Activate the selected menu item.
– Change the value of the selected menu item.
– Activate the selected submenu.

• In SAM, when you press the MENU button twice, the set
will switch to the normal user menus (with the SAM mode
still active in the background). To return to the SAM menu
press the MENU or STATUS/EXIT button.

• When you press the MENU key in while in an SDAM
submenu, you will return to the previous menu.

How to store SAM settings

To store settings changed in SAM leave the top level SAM
menu by using the POWER button on the remote control
transmitter or the television set.

How to exit

Switch the set to STANDBY by pressing the POWER button on
the remote control transmitter or the television set.
If you turn the television set off by removing the mains (i.e.,
unplugging the television) without using the POWER button,
the television set will remain in SAM when mains is re-applied,
and the error buffer is not cleared.

5.2.3 Customer Service Mode (CSM)

Purpose

The Customer Service Mode shows error codes and
information on the TV operation settings. The call centre can
instruct the customer to activate CSM by telephone and read
off the information displayed. This helps the call centre to
diagnose problems and failures in the TV set before making a
service call.
The CSM is a read-only mode; therefore, modifications are not
possible in this mode.

How to activate

To activate CSM, press the following key sequence on the
remote control transmitter: '1 2 3 6 5 4' (do not allow the display
to time out between entries while keying the sequence).

Upon activating the Customer Service Mode, the following
screen will appear:

1 00028 L04EF30.10 CSM
2 CODES 0 0 0 0 0
3 OP 000 057 140 032 120 128 000
4 nnXXnnnn/nnX
5 P3C-1
6 NOT TUNED
7 PAL
8 STEREO
9 CO 50 CL 50 BR 50 HU 0
0 AVL Off BS 50

E_14480_141.eps

Figure 5-3 CSM menu

Menu explanation

1. Indication of the service mode (CSM = Customer Service
Mode).

2. Reserved item.

3. Software identification of the main microprocessor (see
'Service Default Alignment Mode' for an explanation)

4. Reserved item for P3C call centres (AKBS stands for
Advanced Knowledge Base System).

5. Indicates the type of TV system or whether or not the
television is receiving an 'IDENT' signal on the selected
source. If no 'IDENT' signal is detected, the display will
read 'NOT TUNED'

6. Displays the last five errors detected in the error code
buffer.

How to exit

To exit CSM, use one of the following methods:

• Press the MENU, STATUS/EXIT, or POWER button on the
remote control transmitter.

• Press the POWER button on the television set.

5.2.4 Digital Customer Service Mode (DCSM)

Purpose

The Digital Customer Service Mode shows error codes and
information on the IBO Zapper module operation settings. The
call centre can instruct the customer to activate DCSM by
telephone and read off the information displayed. This helps
the call centre to diagnose problems and failures in the IBO
Zapper module before making a service call.

250504

The DCSM is a read-only mode; therefore, modifications are
not possible in this mode.

How to activate

To activate the DCSM, the television has to be in digital mode.

1. Press the Digital Menu button on the remote control to
activate the digital user menu.

2. Activate the information sub menu.

3. Press “GREEN RED YELLOW 9 7 5 9” on the remote
control to activate the DCSM.

EN 12 L04E AB5.

Service Modes, Error Codes, and Fault Finding

Menu explanation

Figure 5-4 DCSM menu - 1

E_14970_040.eps

090904

5. Bit Error Rate: The error rate measured before the error
correction algorithm circuitry. (this value gives an
impression of the received signal)

6. Tuner AGC: Tuner AGC value.

7. COFDM Lock: Indication if COFDM decoder is locked.

8. AFD Status: Status of the Active Picture Format
Descriptor.

9. Terrestrial Delivery System Parameters:
– Bandwidth: Bandwidth of the received signal.
– Constellation Pattern: Displays the signal

constellation.
– Alpha Value: Displays the Alpha Value.
– FEC Scheme: Displays the Forward Error Correcting

Scheme
– Guard Interval: Displays the value for the Guard

Interval.
– Transmission Mode: Displays the Transmission

Mode.

10. Audio Comp Type: Type of detected audio stream.

11. MHEG Present: Indicates if MHEG is present or not.

12. CIM Card Present: Indicates if CIM card is present or not.

How to exit

Press the BLUE button on the Remote Control to exit DCSM.

5.3 Problems and Solving Tips Related to CSM

5.3.1 Picture Problems

E_14970_041.eps

100904

Figure 5-5 DCSM menu - 2

E_14970_042.eps

090904

Figure 5-6 DCSM menu - 3

1. Hardware version: This indicates the version of the IBO
Zapper module hardware.

2. Application SW: The application software version.

3. NOR Version: The NOR Flash image software version

4. Digital Frequency: The digital frequency that the set is
tuned to.

Note: The problems described below are all related to the TV
settings. The procedures used to change the value (or status)
of the different settings are described.

Picture too dark or too bright

If:

• The picture improves when you have press the AUTO
PICTURE button on the remote control transmitter, or

• The picture improves when you activate the Customer
Service Mode

Then:

1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.

2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.

3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu (if necessary).

4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.

5. Use the MENU UP/DOWN keys (if necessary) to select
BRIGHTNESS.

6. Press the MENU LEFT/RIGHT keys to increase or
decrease the BRIGHTNESS value.

7. Use the MENU UP/DOWN keys to select PICTURE.

8. Press the MENU LEFT/RIGHT keys to increase or
decrease the PICTURE value.

9. Press the MENU button on the remote control transmitter
twice to exit the user menu.

10. The new PERSONAL preference values are automatically
stored.

White line around picture elements and text

If:
The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter

Then:

1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.

2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.

Service Modes, Error Codes, and Fault Finding

EN 13L04E AB 5.

3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu (if necessary).

4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.

5. Use the MENU UP/DOWN keys to select SHARPNESS.

6. Press the MENU LEFT key to decrease the SHARPNESS
value.

7. Press the MENU button on the remote control transmitter
twice to exit the user menu.

8. The new PERSONAL preference value is automatically
stored.

Snowy picture

To activate CSM, press the following key sequence on the
remote control transmitter: '123654' (do not allow the display to
time out between entries while keying the sequence).

Check CSM line 5. If this line reads 'Not Tuned,' check the
following:

• Antenna not connected. Connect the antenna.

• No antenna signal or bad antenna signal. Connect a proper
antenna signal.

• The tuner is faulty (in this case line 6, the Error Buffer line,
will contain error number 10). Check the tuner and replace/
repair the tuner if necessary.

Black and white picture

If:

• The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter

Then:

1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.

2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.

3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu (if necessary).

4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.

5. Use the MENU UP/DOWN keys to select COLOR.

6. Press the MENU RIGHT key to increase the COLOR value.

7. Press the MENU button on the remote control transmitter
twice to exit the user menu.

8. The new PERSONAL preference value is automatically
stored.

Menu text not sharp enough

If:

• The picture improves after you have pressed the AUTO
PICTURE button on the remote control transmitter.

Then:

1. Press the AUTO PICTURE button on the remote control
transmitter repeatedly (if necessary) to choose
PERSONAL picture mode.

2. Press the MENU button on the remote control transmitter.
This brings up the normal user menu.

3. In the normal user menu, use the MENU UP/DOWN keys
to highlight the PICTURE sub menu (if necessary).

4. Press the MENU LEFT/RIGHT keys to enter the PICTURE
sub menu.

5. Use the MENU UP/DOWN keys to select PICTURE.

6. Press the MENU LEFT key to decrease the PICTURE
value.

7. Press the MENU button on the remote control transmitter
twice to exit the user menu.

8. The new PERSONAL preference value is automatically
stored.

5.4 Service Tools

5.4.1 ComPair

Introduction

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

1. ComPair helps you to quickly get an understanding on how
to repair the chassis in a short time by guiding you
systematically through the repair procedures.

2. ComPair allows very detailed diagnostics (on I
is therefore capable of accurately indicating problem areas.
You do not have to know anything about I
yourself because ComPair takes care of this.

3. ComPair speeds up the repair time since it can
automatically communicate with the chassis (when the
microprocessor is working) and all repair information is
directly available. When ComPair is installed together with
the Force/SearchMan electronic manual of the defective
chassis, schematics and PWBs are only a mouse click
away.

Specifications

ComPair consists of a Windows based fault finding program
and an interface box between PC and the (defective) product.
The ComPair interface box is connected to the PC via a serial
(or RS-232) cable.
For this chassis, the ComPair interface box and the TV
communicate via a bi-directional service cable via the service
connector(s).

The ComPair fault finding program is able to determine the
problem of the defective television. ComPair can gather
diagnostic information in two ways:

• Automatically (by communicating with the television):
ComPair can automatically read out the contents of the
entire error buffer. Diagnosis is done on I
ComPair can access the I
ComPair can send and receive I
the microcontroller of the television. In this way, it is
possible for ComPair to communicate (read and write) to
devices on the I

2

C/UART buses of the TV-set.

• Manually (by asking questions to you): Automatic
diagnosis is only possible if the microcontroller of the
television is working correctly and only to a certain extent.
When this is not the case, ComPair will guide you through
the fault finding tree by asking you questions (e.g. Does the

screen give a picture? Click on the correct answer: YES /
NO) and showing you examples (e.g. Measure test-point I7
and click on the correct oscillogram you see on the
oscilloscope). You can answer by clicking on a link (e.g.
text or a waveform picture) that will bring you to the next

step in the fault finding process.

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

How to Connect

This is described in the chassis fault finding database in
ComPair.

2

C/UART bus of the television.

2

C/UART commands to

2

C level) and

2

C commands

2

C/UART level.

EN 14 L04E AB5.

TO

UART SERVICE

CONNECTOR

PC VCR I2CPower

Service Modes, Error Codes, and Fault Finding

9V DC

E_06532_021.eps

Figure 5-7 ComPair interface connection

How to Order

ComPair order codes (EU/AP/LATAM):

• Starter kit ComPair32/SearchMan32 software and
ComPair interface (excl. transformer): 3122 785 90450.

• ComPair interface (excl. transformer): 4822 727 21631.

• Starter kit ComPair32 software (registration version): 3122
785 60040.

• Starter kit SearchMan32 software: 3122 785 60050.

• ComPair32 CD (update): 3122 785 60070 (year 2002),
3122 785 60110 (year 2003 onwards).

• SearchMan32 CD (update): 3122 785 60080 (year 2002),
3122 785 60120 (year 2003), 3122 785 60130 (year 2004).

• ComPair firmware upgrade IC: 3122 785 90510.

• Transformer (non-UK): 4822 727 21632.

• Transformer (UK): 4822 727 21633.

• ComPair interface cable: 3122 785 90004.

• ComPair interface extension cable: 3139 131 03791.

• ComPair UART interface cable: 3122 785 90630.

TO
I2C SERVICE
CONNECTOR

180804

– Press the MENU RIGHT button to clear the error

buffer. The text on the right side of the 'CLEAR' line will
change from 'CLEAR?' to 'CLEARED'

• If the contents of the error buffer have not changed for
50 hours, the error buffer resets automatically.

Note: If you exit SAM by disconnecting the Mains from the
television set, the error buffer is not reset.

5.5.3 Error Codes

In case of non-intermittent faults, write down the errors present
in the error buffer and clear the error buffer before you begin
the repair. This ensures that old error codes are no longer
present.
If possible, check the entire contents of the error buffer. In
some situations, an error code is only the result of another error
and not the actual cause of the problem (for example, a fault in
the protection detection circuitry can also lead to a protection).

Note: If you encounter any problems, contact your local
support desk.

5.5 Error Codes

The error code buffer contains all errors detected since the last
time the buffer was erased. The buffer is written from left to
right. When an error occurs that is not yet in the error code
buffer, it is displayed at the left side and all other errors shift one
position to the right.

5.5.1 How to Read The Error Buffer

You can read the error buffer in 3 ways:

• On screen via the SAM/SDM (if you have a picture).

Examples:

– ERROR: 0 0 0 0 0 : No errors detected
– ERROR: 6 0 0 0 0 : Error code 6 is the last and only

detected error

– ERROR: 9 6 0 0 0 : Error code 6 was detected first and

error code 9 is the last detected (newest) error

• Via the blinking LED procedure (when you have no
picture). See 'The Blinking LED Procedure'.

•Via ComPair.

5.5.2 How to Clear The Error Buffer

The error code buffer is cleared in the following cases:

• By using the CLEAR command in the SAM/SDM menu:
– To activate SAM, press the following key sequence on

the remote control transmitter: '062596' directly
followed by the “OSD" icon button (do not allow the
display to time out between entries while keying the
sequence).

– Make sure the menu item CLEAR is highlighted. Use

the MENU UP/DOWN buttons, if necessary.

Service Modes, Error Codes, and Fault Finding

EN 15L04E AB 5.

Table 5-3 Error codes overview

Error Device Error description Check item Diagram

0 Not applicable No Error

1 Not applicable X-Ray / over-voltage protection (US only) 2411, 2412, 2413, 6404, 6411, 6412. A2

2 Not applicable High beam (BCI) protection 3404, 7405 A2

3 Not applicable Vertical guard protection 3466, 7451, 7452, 7453, 7454 A2

4 Tuner UA1316/A I2C error while communicating with 2nd tuner 1000, 5010 (PIP Module) F2

5 Not applicable +5v protection 7604, 7605 A5

6 I2C bus General I2C error 7200, 3207, 3214 A4

7 Not applicable - --

8 Not applicable - --

9 24C16 I2C error while communicating with the EEPROM 7601, 3604, 3605 A5

10 Tuner I2C error while communicating with the PLL tuner 1000, 5001 A3

11 TDA6107/A Black current loop instability protection 7330, 3351, CRT B1

12 SDA9488X I2C error while communicating with the PIP processor 7242 (PIP Module) F1

13 Not applicable - --

14 Not applicable - --

15 TDA9178T/N1 I2C error while communicating with LTI module 7610 H

16 TDA9887 I2C error while communicating with PIP_Demodulator 7201 F2

17 IBO Zapper No Communication possible with IBO Zapper module - K

18 IBO Zapper General error from IBO Zapper module - K

19 TDA1200 I2C error while communicating with SSD stereo sound decoder 7200 A4

20 TDA1200 I2C error while communicating with video cosmic in Hercules IC 7200 A4

Note: Errors 7, 8, 13, 14 are not applicable.

5.6 The Blinking LED Procedure

Using this procedure, you can make the contents of the error
buffer visible via the front LED. This is especially useful when
there is no picture.

When the SDM is activated, the LED will blink the contents of
the error-buffer:

• When all the error-codes are displayed, the sequence
finishes with an 'on' LED blink of 1.5 seconds,

• The sequence starts again.

Example of error buffer: 12 9 6 0 0
After activating SDM, the following occurs:

• 1 long 'on' blink of 5 seconds to start the sequence,

• 12 short blinks followed by a pause of 1.5 seconds,

• 9 short blinks followed by a pause of 1.5 seconds,

• 6 short blinks followed by a pause of 1.5 seconds,

• 1 long 'on' blink of 1.5 seconds to finish the sequence,

• The sequence starts again at 12 short blinks.

5.7 Protections

If a fault situation is detected, an error code will be generated;
and, if necessary, the television set will go into protection
mode. Blinking of the red LED at a frequency of 3 Hz indicates
the protection mode. In some error cases, the microprocessor
does not put the set in protection mode. The error codes of the
error buffer and the blinking LED procedure can be read via the
Service Default Menu (SDM), or via ComPair.
To get a quick diagnosis the chassis has three service modes
implemented:

• The Customer Service Mode (CSM).

• The Service Default Mode (SDM).

• The Service Alignment Mode (SAM).

For a detailed description, see the "Customer Service Mode,
Service Default mode" and "Service Alignment Mode" sections.

EN 16 L04E AB5.

Service Modes, Error Codes, and Fault Finding

5.8 Fault Finding and Repair Tips

Notes:

• It is assumed that the components are mounted correctly
with correct values and no bad solder joints.

• Before any fault finding actions, check if the correct options
are set.

5.8.1 NVM Editor

In some cases, it can be handy if one directly can change the
NVM contents. This can be done with the “NVM Editor” in SAM
mode.

5.8.2 IBO Zapper

In case of performance problems with the IBO Zapper module,
always check for the availability of new software first. Updates
of the IBO Zapper software will be distributed via Symptom
Cures.

5.8.3 Power Supply

Set Not Working

Check Power
Supply Mains

Switch

Set Does Not Start Up

Software

loaded?

Yes

Check

voltage

across 2552

No

Is Vbatt

approximately

140V

Yes

Check

voltage 2562

&2563

16V

Yes

Check 3V

across 2535

Yes

Check 6V

across 2535

Set Unable

to Start

Fuse Blown?

Load

Software

No

Yes

Check Power
Supply circuit

No

Change

Fuse

Not Ok

Check fusible
resistor 3510 &
circuit before it

Check IC7511 &

IC7531

Ok

Set able to

start-up

Ye s

End

No

Bridge Rectifier

circuit 6500

Ok

Check DC
voltage at
2505/2507

Ok

Check
fusible

resistor 3532

Not Ok

Check

7512

Figure 5-8 Fault finding tree “Set not working”

Check other

fusible resistor

and capacitor in

the circuit

E_14480_057.eps

190204

Yes

Set able to

Start

Yes

End

No

Check Line

Transistor 7405

E_14480_058.eps

Figure 5-9 Fault finding tree “Set does not start up”

170204

Service Modes, Error Codes, and Fault Finding

EN 17L04E AB 5.

5.8.4 Deflection

One Thin Vertical Line

Quick check:

• Set in protection mode.

• LED blinking with error “3”.

One Thin Vertical Line

LED Blinking

Check all

connection and

peripheral at

Deflection Circuit in

place

Check

Line Transistor

7405

Is VBE between

200mV to 30mV & V

approximately 500mV

Blank Screen

Blank Screen

Check Vg2

(fine tune)

Not Ok

Check Beam Current Limit

(voltage is 1.8V-2V when

brightness and contrast is

set to the maximum

Ok

Check heater voltage

(measure pin 9&10
at the CRT socket)

Check video supply

(2457) is approximately

180V

Yes

Check Horizontal

Deflection

Circuitry

CB

Ok

Not Ok

Ok

Picture

appears?

Picture not appearing

Check deflection

circuit

Picture not appearing

Picture

appears?

Ok

Not Ok

Replace transistor

E_14480_059.eps

170204

Figure 5-10 Fault finding tree “One thin vertical line”

One Thin Horizontal Line

Quick check:

• Set in protection mode.

• LED blinking with error “2”.

One Horizontal

Thin Line

LED Blinking

Check all connection

and peripheral at

Deflection Circuit

in place

Check transistor

(7451, 7523, 7543) at

Vertical Deflection Circuitry

Replace transistor

Ok

Figure 5-12 Fault finding tree “Blank screen”

5.8.5 Source Selection

Set is not able to go into AV or any missing AV is encountered

E.g. AV1 is available but not able to enter to AV1: Check if the
option setting is correct.

Set is able to go to AV, but no audio is heard.

1. Check that continuity of signal is there from the SCART/
Cinch input to the input of the Hercules.

2. If continuity is there and still no audio, check that option
settings are correct.

3. If logic setting is correct and still no audio, proceed to Audio
Decoder/Processor troubleshooting section.

Set is able to go into AV but no video is available:

1. Check continuity from AV input to HERCULES depending
on the input.

2. If continuity is available and yet no video, proceed to Video
Processor troubleshooting section.

End

E_14480_061.eps

170204

Check Vertical

Deflection Circuit

E_14480_060.eps

170204

Figure 5-11 Fault finding tree “One thin horizontal line”

EN 18 L04E AB5.

Service Modes, Error Codes, and Fault Finding

5.8.6 Tuner and IF

No Picture

1. Check that the Option settings are correct.

2. If correct, check that supply voltages are there.

3. If supply voltages are present, check whether picture is
present in AV.

4. If picture is present in AV, check with the scope the Tuner
IF output signal by manual storage to a known channel.

5. If IF output is present, Tuner is working fine. If no IF output,
I2C data lines may be open, check continuity of I2C lines.
If I2C lines are ok, Tuner may be defect, replaced Tuner.

6. If Tuner IF is present and yet still no picture in RF mode, go
to Video Processing troubleshooting section.

No Picture, No Sound

Yes

Check tuning

supply voltage,

pin 9 of tuner

>30V & <35V

Check supply

voltage, pin 7 of

tuner

No

No Picture,

No Sound,
Raster Ok

Check AGC

Voltage, pin 1

of tuner

AGC voltage
changes with

different signal

strength

Check

V

T

Section

Supply

Picture Ok, No Sound

Picture Ok,

No Sound

Check IF output of

tuner, pin 11

CVBS

present?

Ye s

Check SAW filter output

(pin 4&5)

EU/AP/CH (QSS)- 1001

NA/LA/AP INT - 1002

Output Ok?

Ye s

No

No

Refer to fig.

"Power Supply:

Set not working"

Replace SAW

filter

No

Check AGC

circuit section

5V

Yes

Check Tuner

pin 4 & 5

I2C Bus

Ok

Yes

Replace Tuner

Check Power

No

No

Supply

Check other

functional area

E_14480_062.eps

Figure 5-13 Fault finding tree “No picture, no sound”

170204

Check other

functional area

E_14480_063.eps

170204

Figure 5-14 Fault finding tree “Picture ok, no sound”

Unable To Perform Tuning

Unable to

perform tuning

Enter SDM

check optionbyte 1

Correct

Check if tuner

Supply Voltage

pin 7

Incorrect

5V

Yes

Check Tuner

Supply Voltage

Check I2C at pin

4 & 5 and tuner

Ok

Check other

functional area

Enter SDM and change

to the appropriate byte

Check Power

No

Supply

No

33V

Yes

Not Ok

Check I2C

circuit

Not Ok

I2C

Not Ok

E_14480_064.eps

Replace

Tuner

Not Ok

Tuner

170204

Figure 5-15 Fault finding tree “Unable to perform tuning”

Service Modes, Error Codes, and Fault Finding

EN 19L04E AB 5.

5.8.7 Controller

Below are some guidelines for troubleshooting of the Micro
Controller function. Normally Micro Controller should be
checked when there is a problem of startup.

1. Check that both +3.3 V_dc and +1.8 V_dc are present.

2. Check that crystal oscillator is working.

3. Check that Power Good signal is at “high” logic, normal
operation.

4. Check that HERCULES is not in standby mode. Pin 15 of
HERCULES should be 0 V_dc.

5. Make sure H-drive pulse is there. This can be checked at
resistor R3239. If H-drive does not exist, remove resistor
R3239 to check if there is loading.

Note: When the set shuts down after a few second after power
“on”, the main cause is that Vg2 not aligned properly, try
adjusting Vg2 during the few seconds of power “on”.

5.8.8 Video Processing

No Picture

When “no picture in RF”, first check if the microprocessor is
functioning ok in section “Controller”. If that is ok, follow the
next steps.
When “no picture in AV”, first check if the video source
selection is functioning ok in section “Source Selection”. If that
is ok, follow the next steps.

1. Check that normal operating conditions are met.

2. Check that there is video signal at pin 81. If no video,
demodulator part of the HERCULES is faulty, replace with
new HERCULES.

3. If video signal is available at pin 81, check pin 56, 57, and
58 for the RGB signal.

4. If signal is not available, try checking the BRIGHTNESS
and/or CONTRAST control, and make sure it is not at zero.

5. If still with the correct settings and no video is available,
proceed to the CRT/RGB amplifier diagram.

For sets with TDA9178, follow steps below:

1. Put Option Byte 2 bit 4 to “0”; if video signal is not available,
then check fault finding section “Controller”, Section
“Source Selection”, and steps above.

2. If video is available but not correct, put Option Byte 2 bit 4
to “1”, then check if LTI panel is present. If not, put LTI
panel in the main chassis (connector 1221).

3. If LTI panel is in main chassis, check cable between LTI
panel and main chassis (position is 1206). If it is
connected, then the LTI panel is faulty, replace it.

For sets with Scavem, and Scavem does not work, follow steps
below:

1. Check Scavem coil connector (position is 1361) if
connected; if not, connect it.

2. If connected, check NVM “bit storage” byte 1 bit 7; if it is not
“1”, set it to “1”.

3. If it is “1”, then check the data of the NVM addresses as in
the next table. If the data is not correct, then set these
addresses to diagram values.

4. If it still not works, track Scavem output from pin64 of
HERCULES to CRT panel.

Table 5-4 NVM default values for Scavem

Description

SPR, WS 140 8C 00

VMA, SVM 141 8D 31

NVM_SOC_SMD 142 8E 33

Address
(dec)

Address
(hex) Value (hex)

5.8.9 Audio Processing

No Sound

Picture Ok,

No Sound

Tuner IF Ok Check Tuner/IFNot Ok

Ok

Check AUDOUTLSL &

AUDOUTLSR pin at

UOCIII

Ok

Check Audio

Amplifier

Not Ok

Not Ok

Check UOCIII IC

Check Audio

Power Supply

Ok

Check Audio

Amplifier Circuit

and loud speaker

Ok

Check NVM

Not Ok

Figure 5-16 Fault finding tree “No sound”

No RF audio for QSS/Inter-Carrier stereo sets.

1. Check pin 99 and 100 for SIF signal (for QSS) or pin 104
and 105 for video with SIF (for Inter-Carrier)

2. If signal is not present, check for the QSS/FMI bit settings.
Check also the NVM data.

3. If signals are present and still no audio, check the audio
supply voltage +8V are present.

4. If still no audio signal at Hercules output, Hercules is faulty.

No AV audio.

1. Check troubleshooting methods in section “Source
Selection”.

2. Check the output of the Hercules to see if there is signal
available. If no, check the normal operating condition and
also the NVM data.

3. If still no audio signal at Hercules output, Hercules is faulty.

Note: If there is audio signal at Hercules output and no audio

at loudspeaker, proceed to Audio Amplifier troubleshooting
methods.

5.8.10 Audio Amplifier

No RF as well as AV audio at the loudspeaker:

1. Check that the normal operation condition of the amplifier
is met.

2. If normal operation conditions are met, check the continuity
from Hercules output to input of the amplifier.

3. If continuity is there and still no audio, check speaker wire
connections. If still no audio, amplifier IC might be faulty.

Check Power

Supply

Replace Audio

Amplifier

E_14480_065.eps

201005

EN 20 L04E AB5.

Personal Notes:

Service Modes, Error Codes, and Fault Finding

E_06532_012.eps

131004

Block Diagrams, Testpoint Overviews, and Waveforms

6. Block Diagrams, Testpoint Overviews, and Waveforms

Wiring Diagram

21L04E AB 6.

CVBS (YELLOW)

LEFT (WHITE)

RIGHT (RED)

HEADPHONE

RIGHT

SPEAKER

D

RED

BLACK

SIDE
A/V PANEL +
HEADPHONE

1279

3P

1252

1254

1278

AQUADAG

DEGAUSSING COIL

CRT
16:9

FRAME

ROTATION

COIL

2P

B

2P

SCAVEM

COIL

EHT
CRT

BLACK
RED

LEFT

SPEAKER

TOP CONTROL PANEL

E

1010

3P

(component view)

CRT PANEL

B

1351

1331

7P

5P

1332

1352

CRT

SOCKET

1361

3P

CRT PANEL

1381

1383

3P

FRONT INTERFACE

1693

6P

1509

1504

2P

1282

3P

4P

1582

12

5P

1401

1410

3P

1466

5P

1465

7P

1682

5P

1280

3

1431

7P

1462

3P

1683

CRT
INTF

7P

B3

FOR SUPPORT

5P

4P

ONLY

1510

A

MONO
CARRIER

1505

2P

1508

J

1693

1212

MAINS

SWITCH

6P

MAINS

1211

2P

CORD

2P

1219

1534

K

13

5P

3P

1004

5P4P

1212

IBO
ZAPPER

1240

1682

3P

(track view)

LTI/CTI

H

INTERFACE

1206

4P

TUNER

1215

1206

7P 4P

1217

1216

4P 5P 15

1214

1212

CONNECTOR

12P

COMPAIR

1005

3P

1004

1

3P

3

TUNER

1207

7P

1013

1763

3P

1206

1762

B3

7P

1664

CRT
INTF

1729

1204

3

1

1683

1221

3P

7P

1212

12P

1219

9P91

H

1401

1451

2P

LT I/
CTI

1404

2P

5401

5P

LOT

LINEARITY&

G

PANORAMA

1462

3P

1461

2P

2P

1464

E_14970_027.eps

080904

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Supply and Deflection

22L04E AB 6.

SUPPLY AND DEFLECTION

SUPPLY

FRONT INTERFACE

J

1211

A1

1505

1505

1

2

1231

MAINS

SWITCH

(not USA)

POWER SUPPLY

Degaussing

1506

OR

MAINS

SWITCH

(not USA)

I511

6512

3519

7532

F508 268V / div DC
F511 15V5 / div DC
F531 2V7 / div DC
F537 0V (N.A.)

Coil

1500

T4E

2511

6533

3530

I531

11

1212

1

2

1504

3507

t

5500 :
5502

7511

14

TEA1506T

DRAIN

DRIVER

2

SENSE

Vcc

CONTROL

IC

6

CTRL

DEMAG

STANDBY

SUPPLY

7531
TEA1620

3

Vcc

DRAIN

CONTROL

IC

6

REG

SOURCE

AUX

F552 130V / div DC
F561 15V9 / div DC
F564 9V4 / div DC
F573 0V (N.A.)

11

9

7

14

12

6532

I513

I519

I513 I516 I519 I533

3513

3514

3518

I533

6500

AC

3532

3517

3534

3531

DC

2534

3538

G

6511

7512

F508

2505

MAIN

SUPPLY

3516

LINEARITY & PANORAMA

TO 1221

A5

CONNECTIONS

G

ONLY FOR:
28"WSRF LA/NA
32" WSRF LA/NA
28" WS-SF LA

1464

4

1

1462

1

2

3

+9V

I2SD/1

7460

ACTIVATING

CIRCUIT

2466

LINEARITY AND

PANORAMA

CORRECTION

2474
2475

7462

7463

2464
2467

1463

1461
4

1

HOR.
DEFL.
COIL

DEFLECTION

HERCULES

Vbatt

-Vaudio

+Vaudio

+6VA

A4

2x

A4

+3V
+6VA
+6VA

+6V

Vaux

A4

A4

INTF_Y GREEN_IN

A5

EHTinfo

A2

F401 130V / div DC
F402 32V8 / div DC

56

97

7200-H
(SYNC)

VIDEO
IDENT

MAIN
SYNC

SEPARATOR

EHTo

2240

PHI 1

DETECTOR

VERTICAL

SEPARATOR

HORIZONTAL

GENERATOR

PROTECTION

SYNC

F412 F414

2V / div DC

20µs / div

VERTICAL

7541

1503

43

ENERGIZING

CIRCUIT

1

2

5520

9

8

4

I516

D

S

7514

5

3

2

4

3

35321532

1A

5531

4

5

1

2

(optional)

5551 5552

17

18

5562

13

14

5561

10

11

1

7515
TCET1103

2

6564

6535

10

9

6536

8

6

6551

6563

6562

3571

6573

2564

2535

2536

V_DG

F552

1543

6571

7571

REFERENCE

CIRCUIT

+3V3

7573

STANDBY

CIRCUIT

6565 6566

3565

F536

6537

G

7536

7561

6676

DS

I573

7535

F563

F561

3575

3576

Stdby_Con

POWER-DOWN

F564

5537

F537

I548

B

F455 F458 F459

3232

OSC.

SAND-

CASTLE

X-RAY

DIVIDER

A2 A2

EHTinfo

112

200V / div DC

20µs / div

Vguard

113 116

VERTICAL

GUARD

DETECTOR

PHI 2

DETECTOR

VERTICAL

SAW-

THOOTH

R.G.B.

BLANKING

HORIZONTAL

OUTPUT

E/W

+

GEOMETRY

VERTICAL

OUTPUT

+

GEOMETRY

F418

5V / div DC

20µs / div

F452 -13V4 / div DC
F453 190V8 / div DC

F460 F461

TO RGB
PROC.

7207

3291

HDRIVE

HD

SANDCASTLE

HD_PIP

EW_DRIVE

VDRA

VDRB

62

63

SEE BLOCK DIAGRAM VIDEO

108

106

107

I416 I417 I468I423 I433 I462

A5

A5

LINE + FRAME DEFLECTION

A2

+6VA

LINE

F412

HD

6486

-9V

5402

7404

BU4508DX

F418

E/W

+8V

+8V

3420 3440

7410

3498

I417

7484

7406

FRAME

+9V

F460

F461

3462

7455 7456

3463

7408

7405

3497

F414

LINE
OUTPUT
CIRCUIT

+

E/W

CORR.

3465

7452

-12V

7411

7454

Vbatt

OR

1404
1

2

7451

7453

3

1

F402

HOR.
DEFL.
COIL

5445

EHT

FOCUS

10

6

5

7

8

9

SEE BLOCK DIAGRAM VIDEO

3474

F458

3466

1491
1

2

VER.
DEFL.
COIL

F459

3461

FRAME_FB

3471

VD

Vguard

VG2

1454

3442

6481

Vbatt

A5

A4

I433

TO

CRT

B1

+Vbatt

3481

3410

6483 6484

6453

6456

3457

3455

6401

3411

3451

2403

6452

3458

3484

3485

1452

2456

6459

Vbatt

7401 : 7403
7480 : 7483

EHTb

+

EHTinfo

+

BCL

PROC.

VIDEO/SUPPLY

3401

F401

POWER-DOWN

FRAME_FB

EHTb

EHTinfo

BCL

F452

F453

VIDEO/SUPPLY

F455

FILAMENT

6454

6455

EHTb

FILAMENT

VT_SUPPLY

A1

A4

A4

-12V

+9V

1401

TO 1351

5

B1

4

CRT

or

3

TO 1401

B3

2

CRT

INTERFACE

1

PANEL

A4

100V / div DC

5µs / div

100V / div DC

5µs / div

2V / div DC

5µs / div

100V / div DC

5µs / div

HOT GROUND COLD GROUND

5V / div DC

20µs / div

20 V / div DC

5ms / div

1V / div DC

5ms / div

500mV / div DC

5ms / div

500mV / div DC

5ms / div

20V / div DC

20µs / div

500mV / div DC

20µs / div

10V / div DC

20µs / div

10V / div DC

20µs / div

10V / div DC

5ms / div

5V / div DC

5ms / div

E_14970_032.eps

090904

Block Diagrams, Testpoint Overviews, and Waveforms

Testpoint Overview Mono Carrier

23L04E AB 6.

3139 123 5676.3

E_14970_045.eps

090904

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Video

FRONT END

IBO-ZAPPER

K6

1600
TD1316L

RF-IN

BLOCK DIAGRAM

SEE BLOCK DIAGRAM

+5VClean

5602

11

DIGITAL

TUNER

FOR COMPLETE

IBO-ZAPPER

14

15

K1 K2 K3 K4

IF1

DIGITAL

AUDIO AND

VIDEO

IF2

PROCESSING

ANALOG BACK END

K5

GREEN/Y

BLUE/U

RED/V

R1

L1

CVBS_VCR

I2C_TV_SDA

I2C_TV_SCL

TV_IRQ

1212

1219

1206

24L04E AB 6.

LTI/CTI

H

INTF_Y_OUT

INTF_Y

INTF_U_OUT
INTF_Pb

INTF_V_OUT
INTF_Pr

INTF_FBL

INTF_V_OUT

INTF_U_OUT

INTF_Y_OUT

SC1_R/G/B

SC1_FBL

1214

1

3

5

1216

1

N.C.

1

1351

3

5

1

3

5

1

2

3

1351

1351

A5

1219

ERR

17,18

1

3

5

INTF_R_IN

INTF_L_IN

INTF_CVBS_IN

SEE

BLOCK DIAGRAM

AUDIO

7611
MM1389XFBE

1

16

14

11

8

9

CLAMP
CLAMP

CLAMP
CLAMP

CLAMP
CLAMP

1212

7610

7630

TDA9178T

7635
7636

6

3-STATE

5

3-STATE

3

3-STATE

CLAMPCTL

102,7,12

A5

1

2

3

1212

F224

1

F225

2

F226

3

6

YIN

8

UIN

9

VIN

LTI/CTI

PROC.

PULSE FORMER

19

YOUT

17

UOUT

16

VOUT

ERR

15

SC

1

1

SDA

SCL

3

Pb_2

Pr_2

SANDCASTLE

SDA

SCL

INTF_FBL

1212

Y_2

4

6

8

10

12061215

1

3

6

CONN.

A5

1212

F216

INTF_Y/GREEN_IN

4

INTF_Pb/BLUE_IN

6

INTF_Pr/RED_IN

8

F217

F218

SANDCASTLE

10

SEE BLOCK DIAGRAM

DEFLECTION

1206

1

E

D

3

INTF_FBL

6

SEE BLOCK DIAGRAM CONTROL

A4

A4

TUNER IF

A4

9002

+5V

+5VS

FM

3001

SDA

A4

A4

A4

A8

D

SVHS

VIDEO

3000

SCL

SEL-LLPIM

REAR I/O SCART (VIDEO PART)

SC1-RED-IN

SC1-GREEN-IN

SC1-BLUE-IN

SC2-CVBS-OUT

SC2-CHROMA-IN

SIDE AV

32

154

IN

SEE BLOCK DIAGRAM AUDIO

VT_SUPPLY

A2

6001

FM-RADIO

TUNER

+

TV TUNER

5

4

7001

FILTER

SELECTION

98

VT

AGC

SCART 1

21

20

19

16

15

FM

IF

1

BZX79-C33

F002

10

F004

11

50019003

6 7

1000

ERR

10

TV

I002

I001

7701

SSIF

7003

1002
1003

1004

TO
AUDIO
PAR T

RF_AGC

SC1-CVBS-OUT

SC1-CVBS-IN

11

7

SCART 2

21

20

19

16

15

8

SC1-STATUS

SC2-Y/CVBS-IN

11

8

7

CONNECTION

A5

1207

1252

Y

C

7

7

6

6

5

5

7607

7606

SC2-STATUS/ITV_MSG

SC2-CHROMA-IN

SIDE_CHROMA_IN

SIDE_Y/CVBS_IN

INTF_CVBS_IN

SEL_SC2_INTF

SELECT

SW_SC2_CVBS

SSIF

VIF_1

VIF_2

SIF1

SIF2

SC1-FBL

A4

SC1-R/G/B

A4

A4

A4

105

104

100

HERCULES

7200-A (IF)

98

99

PHASE

DISC

VIDEO

IF

TUNER IF

AGC

AUDIO IF

QSS/AM

F201 2V / div DC
F203 2V / div DC

A4

VCO

PLL

PLL

SOUND

MIXER

AM

SOUND

DET.

SOUND

TRAP

FM/QSS

AM

VIDEO

DEMOD

F205

500mV / div DC

10ms / div

HERCULES

7200-D (YUV PROCESSING)

Y

Pr

PEAKING

Pb

SCAVEM

PROC.

WHITE/BLACK

STRETCH

GAMMA COR.

TINT CONTROL

SKINTONE

F216 F217 F218

1V / div DC

20us / div

1V / div DC

20us / div

SWITCH

TO
AUDIO
PAR T

See block
diagram
AUDIO

F206

1V / div DC

20µs / div

1V / div DC

20us / div

SC1_CVBS_OUT

86

7200-B (CVBS I/O + FILTERS + COLOUR DECODING)

SW_SC2_CVBS

SC2_Y/CVBS_IN

SIDE_Y/CVBS_IN

SC2_CHROMA_IN

SIDE_CHROMA_IN

SC1_CVBS_IN

CVBS1

81

74

71

78

70

77

F240 F241 F242

500mV / div DC

20µs / div

MATRIXSATURATION

500mV / div DC

20µs / div

RGB

ADDER

R_Y

G_Y

B_Y

F224 F225 F226

500mV / div DC

20us / div

500mV / div DC

20us / div

INPUT

SWITCH

VIDEO
IDENT

F331 F332 F333

500mV / div DC

20µs / div

7200-E (RGB PROCESSING + CATHODE CALIBRATION)

R

G

B

64

CLAMP

MUTE

+

500mV / div DC

20µs / div

BLUE

STRETCH

&

CONTRAST

FROM µP PART

R_OSD

G_OSD

OSD

INSERTION

F338 F339 F341

500mV / div DC

20us / div

50V / div DC

20us / div

CVBS/Y

C

500mV / div DC

20µs / div

B_OSD

FBL

BRIGHTNESS

50V / div DC

20us / div

COMB
FILTER
&TRAP

SWITCH

+

PEAK WHITE

LIM.

BEAM

CURRENT

LIM.

CHROMA/CVBS

500mV / div DC

20µs / div

CATHODE

CALIBRATION

46

50V / div DC

20us / div

OUTPUT

SWITCH

PAL, NTSC

SECAM

DECODER

65

INTF_CVBS_OUT

YintYint

Uint

Vint

42

OUTPUT

43

STAGE

44

45

BCL

A2 A4

3226

3227

3228

(RGB/YPrPb/YUV
INPUT SWITCHING)

7200-C

N.C.

Yint

Uint

Vint

INSSW352

SELECTION

LOGIC

CRT INTERFACE PANEL

B3

1465

B

1

G

2

R

3

BC-INFO

4

5

SVM

6

ROT

7

1401 1466

VSVM

1

1351

+200V

2

FILAMENT

3

4

EHT-b

5

7308

BOUT

GOUT

ROUT

IBLACK

SVM

A5

SC1_FBL

F240

F241

F242

ROT

DEFLECTION

1

2

3

4

5

6

7

TO 1401

A2

SC1_BLUE_IN

YUV
RGB
DVD

6404

6403

34016401

2401 24036402

SC1_RED_IN

SC1_GREEN_IN

50

51

49

YPrPb2/
YPrPb3

SELECTION

DVD

TO

DVD

6405

DVD

6405

1431

RGB2/
RGB3

SELECTION

RGB

TO

DVD

RGB

SCAVEM

B2

13831405

CRT

B1

13311204

B

1

1

2

3

4

5

6

7

1

1351

2

3

4

5

1351

G

2

R

3

4

5

6

7

+200V

+200VA

1

1351

2

3

4

5

INTF_U-OUT58INTF_Pb/BLUE_IN

INTF_V-OUT

54

53

DVD

TO

YUV

ROT

SVM

F331

3351

2351

FILAMENT

F333

VSVM

VSVM

+200V

EHT-b

BC_INFO

SVM

ROT

INTF_Y_OUT

INTF_Y/GREE_IN

55

7330

3

F332

1

2

FILAMENT

57

YUV

TO

DVD

5

INTF_Pr/RED_IN

59

DIGITAL SIGNAL PROC.

- 4:3 LINEAR/NON-LINEAR SCALING

- DOUBLE WINDOW PROC.

YUV

FILAMENT

ROTATION

OUTPUT

SCAVEM
OUTPUT

+200VA

3332

7

B

3334

9

G

3336

8

R

5352

1332

11

B

6

G

8

R

10 9 5 7 1

DAC

DINT

1381
1

ROTATION
COIL

2

(OPTIONAL)

1361
1

SCAVEM
COIL

2

(OPTIONAL)

AQUADAG

DEFLECTION

FOCUS

VG2

A2

FROM DEFLECTION

E_14970_028.eps

080904

Y

Pr

Pb

CRT

25kV

EHT

ADC

6383

VSVM

F341

F338

F339

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Audio

AUDIO

TUNER IF

A3

+5V

+5VS

SDA

A4

SCL

A4

SEL-LLPIM

A4

REAR I/O SCART

A8

SCART 1

SCART 2

SIDE AV

D

L

R

9002

6

3

2

1

6

3

2

1

FM

3001

3000

VT_SUPPLY

A2

50019003

1000 6, 7 9

2

ERR

10

TV

I002

I001

1252

3

1

FM-RADIO

TUNER

TV TUNER

5

7001

FILTER

SELECTION

A5

1207

VT

FM

+

IF

AGC

1

4

CONNECTIVITIES

3

1

6001
BZX79-C33

F002

10

F004

11

SIDE_L_IN

SIDE_R_IN

SC1_L_IN

SC1_R_IN

SC2_L_IN

SC2_R_IN

7003

1002
1003

1004

HERCULES

A4

7200-A (IF)

SSIF

PHASE

DISC

VIF_1

24

VIDEO

25

31

29

30

IF

TUNER IF

AGC

AUDIO IF

QSS/AM

VIF_2

RF

SIF1

SIF2

IBO-ZAPPER PANEL

SEE

BLOCK DIAGRAM

IBO-ZAPPER

PAN E L

VCO

VIDEO

DEMOD

K5

PLL

R1

L1

To VIDEO PART
see block diagram
VIDEO

PLL

SOUND

MIXER

AM

SOUND

DET.

1

3

FM/QSS

AM

CONNECTIVITIES

A5

12191219

1

3

INTF_R_IN 75

INTF_L_IN 76

SC2_R_IN 72

SC2_L_IN 73

SIDE_R_IN 79

SIDE_L_IN 80

SC1_R_IN 94

SC1_L_IN

INTF_R_IN

INTF_L_IN

FM/QSS

SSIF

AM

25L04E AB 6.

7200-F (AUDIO)

96

95

FM

DEM.

A7

MAIN_OUTL

MAIN_OUTR

AMPLI

MUTE

AUDIO AMPLIFIER

VOL_MUTE

A4

REAR I/O SCART

A8

3762

DIGITAL PART

SC1_L_OUT

+

AUDIO

SOURCE

SELECTION

I951

I952

7991
7992

VOLUME

+

MUTE

ADC DAC

7990
TDA2616Q

1

9

2

7991

PROCESSING

V AUDIO+1

7

5

-V AUDIO

DIGITAL

SOUND

DIGITAL
STEREO

SOUND

DECODER

ERR

19

4

6

F952

F955

1281

5

2

1280

1

2

SELECT

SELECT

OR

AUDIO

AUDIO

SCART
CINCH

OUTPUT

OUTPUT

OUTPUT

Stby_Con

A4

POWER_DOWN

A4

L 8 Ohm/15W

R 8 Ohm/15W

SIDE AV

D

5

2

93

SC1_R_OUT

92

SC2_L_OUT

67

HP

LS

66

68

69

7993, 7994

SC2_R_OUT

MAIN_OUTR

MAIN_OUTL

MUTING

MUTE

12781254

1

2

SCART 1

SCART 2

7705

5

2

A5

L 8 Ohm/15W

R 8 Ohm/15W

6

3

2

1

6

3

2

1

4

1

MUTING

to 2-1683

A4

to 3-1581

A10

7706 : 7709

MUTING
CIRCUIT

1764

1763

1

1410

3757

3764 3761

7703 7702

ANTI D/P PLOP

B3

(part)

MUTING

1

POWER_DOWN

2

12V

DC

3

SPDIF

(optional)

1228

SUBWOOFER

(optional)

MONITOR

OUT

L

R

7410

MUTING
CIRCUIT

1

2

3

CONTROL

FRONT INTERFACE

J1

(PARTLY)

6692
TSOP1836

+3.3V

ON/OFF

USA only

6693

6691

KEYBOARD

LIGHT_SENSOR

LED

TOP CONTROL

E

LOCAL

KEYBOARD

FRONT CONTROL

A9

1693

3

IR

4

5

6

1693

3

4

5

6

6693

6692
TSOP1836

+3.3V

LOCAL

KEYBOARD

(USA only)

+

ON/OFF

F692

6691

1010

2

LED

KEYBOARD

LIGHT_SENSOR

LIGHT_SENSOR

LED

KEYBOARD

IR

OR

IR1

OR

HERCULES (CONTROL)

A4

1682

2

KEY_PROTN 9

IR 32

LED 30

LIGHT-SENSOR 14

POWER_DOWN 31

A1

1205

24MHz

7200-G (Control)
TDA12001H1

I/O PORTS

IIC BUS

TRANSCEIVER

PWM

OUTPUTS

TELETEXT

(close caption)

ROM
RAM

119

118

+

+

+

CPU

+

+

ERR

20

22

3207

20

3214

21

2

1

18

15

17

16

23

24

25

WRITE_PROTECT

+3.3V

32803279

VOL_MUTE

Stdby_Con

7205

ROT

SEL_LLPIM

I2SD/1

Reset__5V

SEL_SC2_INTF

+3.3V

3266

3265

FEATURES

A5

EEPROM

(NVM)

7

ERR

32043202

SDA

SCL

see

E

IIC

DIAGRAM

D

(FOR LTI)

A7

A1
A7

B2

+3.3V

8
6
5

9

36043605

see

IIC

DIAGRAM

F003 0V (N.A.)

F004

200mV / div AC

10ms / div

50mV / div AC

2ms / div

F692

2V / div DC

2ms / div

I001 I002

1V / div DC

20µs / div

I952I951 F952 F955

50mV / div AC

2ms / div

1V / div DC

20µs / div

500mV / div AC

2ms / div

500mV / div AC

2ms / div

A3

A5

G

A5

A5

SERVICE JUMPER

9275

SDM

9252

E_14970_029.eps

070904

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram IBO Zapper Panel

IBO - ZAPPER PANEL

FRONT END

K6

K6

I2C_TDA_SDA

I2C_TDA_SCL

+5V

3634

K1

DSP_EEPROM_WP

68P PCMCIA
CONNECTOR

13435

68

TUNER

3626

3612

FROM
MAIN

A3

+5V

EEPROM

7

WC

RF-IN

+5V

3607

3627

3633

56

7602
M24C256

1600
TD1316L

8 10 5 13

9

3606

K7

K7

K7

+5VClean

5602

11

TUNER

AGC

XTAL

2
3

I2C_LOCAL_SDA

I2C_LOCAL_SCL

7605
74AHC1GU04GW

2

INVERTER

7606
74AHC1GU04GW

2

INVERTER

A_MD (0-7) + A_MDO (0-7)

CONTROL LINES

7701
74LVC573ADB

7702
74LVC573ADB

7703
74LVC245A

RESET_FE-N

K1

14

15

7601-1
LM393D

1

CONTROL

LATCH

CONTROL

LATCH

CONTROL

BUS

TRANS

CEIVER

IF-AGC

AGC-TUN

COMB-OUT

3630

3631

3625

3629

4

X-IN

4

9

62

IF1

61

IF2

2
1

21

4

3

8

6

54

4MHz_MOJO

MIU_ADDR (0-7)PCMCIA-A (0-7)

MIU_ADDR (8-14)PCMCIA-A (8-14)

MIU_DATA (0-7)PCMCIA-D (0-7)

7600
TDA10046HT

COFDM

CHANNEL

DECODER

COFMD

K1

I615

38

TDA_DATA (0-7)
TDA_CLOCK

37

TDA_VALID

36

TDA_SYNC

35

UNCOR

33

FE_LOCK

25

MIU_ADDR (15-24)

K7

VCCEN

K7

I603

K1

7705
ST890C

3

CURRENT

SWITCH

7704
FXO-31FT

OSC

27MHz

I2C_LOCAL_SCL 31

I2C_LOCAL_SDA 30

I625

COMMON INTERFACE

K7

MPEG

8

PCMCIA_5V

FAULT

6

F701

3700

3701

7700
STV0700

TS

TS

INTER

IN

FAC E

CI

UCSG

12

INTERRUPT

MANAGEMENT

35

ICC

INTERFACE

TS

OUT

26L04E AB 6.

TS_DATA (0-7)
TS_CLOCK
TS_SYNC
TS_VALID

K1

MOJO

7100
PNX8316HS

TS

IN

MOJO

MOJO

AV

GPIO

181

CTSNO

RXDO

RTSNO

TXDO

DCDO

RSZ32_DSR

DTRO

SPDIF

K4

SPDIF

ANALOG BACK END

K5

MOJO_I2S_OUT_SD

MOJO_I2S_OUT_SCK

MOJO_I2S_OUT_WS

C_CVBS

G/Y

B/Pb

R/Pr

TV_IRQ

7502
UDA1334ATS

3

1

AUDI O

DAC

2

5511

5511

5512

5513

5514

FILTER

FILTER

FILTER

FILTER

FILTER

7402

EF

7500
7501

16

7503
7504

14

7507

7507
7508

7508

7509
7510

7505

7506

K1

R1

L1

CVBS_VCR

GREEN/Y

BLUE/U

RED/V

I2C_TV_SDA

I2C_TV_SCL

TV_IRQ

+12V

+5V

+12V_A

CLEAN

F517

F516

F514

F518

F519

F521

1401

1219

1212

1206

1534

1004

SPDIF
OUT

1

2

TO
1219

3

4

CONN.

5

1

2

TO
1214

3

4

LTI / CT I

5

INTERFACE

1

TO
1215

2

3

LTI / CT I

4

INTERFACE

TO

1

1582

2

1

TO
1004

2

3

TUNER IF

A4

H

H

A10

A3

5

1

UART

CONN.

FOR

COMPAIR

ONLY

RS232 INTERFACE (option)

K4

1

2

3

4

9

5

6

6

7

8

9

1402
1

2

3

DCD CTS CTSNO

RXD

TXD

DTR

DSR

RTS

CTS

N.C.

TXDO

RXDO

7400
ST202ECD

98

RXD RXDO

RTS RTSNO

TXD TXDO

DCD DCDO

8

DSR RS232_DSR

DTR DTRO

7401
ST202ECD

1213

107

1114

9

1213

107

1114

FLASH MEMORY

K2

MIU BUS

7200
M29W32ODT

EEPROM

NOR

FLASH

7201
M58LWO32A

NOR

FLASH

(optional)

I2C_LOCAL_SDA
I2C_LOCAL_SCL

7203

M24Z64

7202
KUS281632D

SDRAM

3209 3210

5

EEPROM

8KX8

POWER SUPPLY

K3

5302

I311

+12V_A

F303

+3V3

F304

+3V3CLEAN

F307

+1V8FE

F310

+1V2_MOJO

F313

+5V

F314

+5VCLEAN

E_14970_030.eps

020904

4304

+12V

MIU

F301

SDRAM

+5V

3207

3206

3211

I2C

6

WP

7

+3V3

73006
NCP303LSN30

POWER

ON

RESET

7300
MC34063AP1

5301

6

SUPPLY

7303
MC34063AP1

5304 5307

SUPPLY

7305
MC34063AP1

5306

SUPPLY

12

RESET_n

5300

2

6300

5303

26

6303

5305

6304

2311

DS

G

7309
7310

CONTROL

7302
LD1117V18

7307
LD1117V50

7308
LD1117V50

7311

K1 K2

Block Diagrams, Testpoint Overviews, and Waveforms

I2C and Supply Voltage Overview

27L04E AB 6.

SUPPLY LINES DIAGRAM

POWER SUPPLY

A1

SUPPLY PRIMARY SIDE

HOT GROUND COLD GROUND

* SEE DIVERSITY TABLE

9

8

4

5

3

2

4

3

1532
T315mA

4

5

1

2

5512

5531

7541

1503

43

ENERGIZING

1

2

5551 5552

17

18

5562

13

5561

10

12

1

7513
TCET1103

2

6564

6535

10

6536

8

6537

6

CIRCUIT
(optional)

6551

6563

6562

3571 *

6573

2564

2535 6576

2536

V_DG V_DG

1543 *

6571

7571

REFERENCE

CIRCUIT

+3V3

7573

STDBY_CON

STANDBY

CIRCUIT

7561

6565 6566

3565

5537

DS

7535

G

7536

Vbatt

-Vaudio -Vaudio

+Vaudio

+6VA

3575

3576

A4

POWER-DOWN

A4

+3V

+6VA

+6V

Vaux

B

A4

A7

A6

A4,A5

A4,A5,A9

A10

AUDIO_AMPLIFIER

Vaudio+1

CLASS D
AUDIO AMP

(RESERVED)

+6VA

A1

A5

A5

A3

A1

A5

A4

+3V

+3.3V

Stdby_Con

A1

POWER_DOWN

A1

+5V

Vbutter

+6V

+8V

1903

HERCULES

+Vaudio

9911

9910

*

7990
TDA2616Q

5

OUTPUT

7

19
35

125

15

31

+5V

+Vbutter

+6V

+8V

+Vbatt

AUDIO

Vaudio+1

V_DG

+3.3V

7200

HERCULES

PWM1

LINE + FRAME DEFLECTION

A2

HDRIVE

+Vbatt

7404

A4

EW_DRIVE

A4

+Vbatt

To 6407
on

3401

VT_SUPPLY

+6VA (To 3445)

3210

3211

3206

DECDIG

115

16

3208

3296

2204

7202

7210

G

7209

G

6207

3217

5402

3209

A2

D

S

D

S

LINE
OUTPUT
CIRCUIT

+

E/W

CORR.

7204

7201-1

VT_SUPPLY

A3,A5

7201-2

7203

7405

1404
1

2

3

1

HOR.
DEFL.
COIL

+3V

+1.8V_A

+1.8V_B

5445

EHT

FOCUS VG2

10

BCL

1454

6

6453

5

7

6456

8

3423

3459 2456

9

3456

3422

A3

Vbuffer Vbuffer Vbuffer

A1

+3V

A1

+6V

VT_SUPPLY

A2

RESET +5V

A4

TO

CRT

B1

To 3463, 3475
on

6452

3458

3484

3485

1452

6459

4604

13

3608

3606

3607

Vbatt

6483 6484

A2

VIDEO SUPPLY

FILAMENT

6454

6455

7603
L78L33ACZ

7605

7604

3609

-12V

+9V

To 6403, 3480,
3420, b-7401,
c-7403
on

Vbatt

VIDEO SUPPLY

FILAMENT

A2

To
VERTICAL
DEFLECTION

+3V (N.C.)

+6V

+6VS

+3.3V

+3.3V

+5V

+5V

+9V

1401

1

2

3

4

5

-12V

B3

1401

1410

A5

A4

A5

A2

A3
A4

A3

A1

CRT INTF

1

2

3

4

5

3

FEATURES &
CONNECTIVITIES

+9V

4611

3639

3610 6610

9605

TUNER IF

A3

5001

1004

1

3020

2

VT_SUPPLY

6001

-/C33

REAR I/O SCART

A8

FRONT CONTROL

A9

3690 3693

+6V

6401

VSVM

+200V

FILAMENT

12Vdc

+9V

+9V

+8V

A4

Vbutter

6694

-/C5V1

1405

1466

1

2

3

4

5

1221

1

+9V

1212

12

+9VA

+9VA_1

+8V

To TUNER
Pin 6.7

+5VS

Vbuffer

A4,A5,A8

+5V

To TUNER
Pin 9

To L ED

To 3-6692
(IR_REC)

1693

+6V

11

B2

B1

1351

1462

1

1212
12

1693

1

2

3

4

5

G

H

A1

J

1383

FILAMENT

SCAVEM

CRT

VSVM

+200V

LINEARITY

LTI /C TI

3610

SUPPLY

A10

Vaux

FRONT
INTERFACE

6610

ANALOG BACK END

K5

FILAMENT

VSVM

6383

+200V

3351

+200A

FILAMENT

+9V

9613

9V

1581

1

1582

1

2

+6V

1216

+8V

4

NC

1534

1

2

K3

K3

K3

K3

K3

K1

K3

K3

K3

K2

K3

K3

K4

K3

K1

K3

K6

K3

K3

K3

K3

K7

K3

K3

+12V

+5Vclean

+3V3

+3V3clean

+12V_A

POWER SUPPLY

4304

7300
MC34063AP1

5301

SUPPLY

+12V_A

7303
MC34063AP1

5304

6

SUPPLY

7305
MC34063AP1

5306

6

SUPPLY

MOJO

+3V3

+1V2_MOJO

+3V3clean

FLASH MEMORY

+3V3

+5V +5V

INTERFACE

+3V3

+3V3_MOJO

+5

FROM END

+1V8FE

+3V3

+5V

+5Vclean

COMMON INTERFACE

+3V3

+5V

7705

+5V

CURRENT

SWITCH

+3V3

+3V3clean

+12V +12V

5300

26

6300

5303

2

6303

5305

2

6304

+3V3clean

71

7311

DS

7309
7310

CONTROL

7302
LD1117V18

2311

7307
LD1117V50

7308
LD1117V50

G

5201

5200

5400

5801

5703

5704

5702

5700

5701

5518

5519

5520

5302

5307

5100

+12V_A

+12V_B

+12V

+12V_A+12V_A

+3V3

K1,K2,K4,K5,K6,K7

+3V3clean

+1V8FE

+1V2_MOJO

+5V

+5Vclean

+3V3

+1V2_MOJO

+3V3_MOJO

+3V3

+3V3_NOR48

+3V3_NOR48

+3V3

+3V3_MOJO

+5V_UART

+1V8FE

+3V3

+3V3_FE

+5V

+5Vclean

+3V3

+3V3_STV

+3V3_CORE

+3V3_BUF

+5V

PCMCIA_5V

PCMCIA_VPP

PCMCIA_AVCC

1004

1

2

K1,K5

K2,K4,K6,K7

K5,K6

K5

K6

K1

K4

I2C BUS INTERCONNECTION DIAGRAM IBO-ZAPPER

A4

HERCULES

7200

SET

PROCESSOR

PART OF

VIDEO­PROCESSER
(HERCULES)

ERR
19,20

+3.3V

+3.3V

3202

3204

20

21

22

+3.3V

3279 3280

2

1

3207

3214

62116210

WRITE_PROTECT

+3.3V

3266

3265

SDA

SCL

E

D

A5

ERR

6

FEATURES & CONNECTIONS

+3.3V

3601

56

7601
PCF85116
EEPROM

7

(NVM)

ERR

9

TUNER IF

A3

1206 1206

E

D

36043605

30003001

54

1000

TUNER

ERR

10

COMPAIR

1005

1

2

3

For

only

1

3

LTI/CTI INTERFACE

H

1

3

14 11

7610

TDA9178T

LTI/CTI
PROC.

ERR

15

1215 1206

SDA

1

SCL

3

36173616

17,18

ANALOG BACK END FRONT END

K5

ERR

3513

1

3512

3

2510

2509

I2C_TV_SDA

I2C_TV_SCL

K6A5

I2C_TDA_SDA

I2C_TDA_SCL

98

1600

TD1316L

TUNER

DIGITAL

36053607

+5V

3626 3627

56

M24C256
EEPROM

+5V

7602

36333632

7

+5V

3634

36313630 36293625

43

7600

TDA10046

COFDM

CHANNEL DECODER

86

WP

K1

I2C_local_SDA

I2C_local_SCL

33

MOJO

9

31463147

8

7100

PNX8316HS

MOJO

31433144

76

185

K2

WP

MEMORY

+5V

3211

+5V

3207 3206

56

7

7203

M2C64

EEPROM

+5V

32103209

COMMON

K7

INTERFACE

37003701

30 31

7700
STV0700
PCMCIA

CONTROLLER

E_14970_031.eps

270106

Circuit Diagrams and PWB Layouts

7. Circuit Diagrams and PWB Layouts

28L04E AB 7.

Mono Carrier: Power Supply

1234567891011

POWER SUPPLY

DEGAUSSING COIL

A

B

1508

1509

For

C

Lightning
Protection

3506

1510

TO 1013 OF

D

(For

Lightning

Protection)

E

F

2528

G

"$"

FOR MAINS 120V AC 170V (177V)

..V.. Normal Operation
(..V..) Standy Mode

HOT GROUND

COLD GROUND

3139 123 5676.1

1504

1505

1n5

3M3

2509

3529

*

I553

3528

**

F500

2

F501

1

9507

*

1506

*

2

1

MAINS SWITCH

9508

*

I511

2511

6511

RGP10D

BAT54 COL

15K

3527

I555

13V

7532
BC857B

0V3

F503

56

4

3

15V5

50V22u

2517

3512

*

I554

I503

3500

3501

6538

2

1

I504

3M3

I505

3M3

6512

3519

I541

*

3V8

220V AC 309V (317V)

2532

1501

PFC5000

F505

F504

7511

TEA1506T/N1

2

Vcc

3

Gnd

6

Ctrl

0V

1n0

I527

1K2

2512

10u

2530

5533

2544

*

T4E.250V

for ITV only

FREQUENCY

CONTROL

INPUT

CONTROL

CIRCUIT

BURST

DETECTOR

100n

6532

330p

33u

3534

10n

1500

9500

MANAGEMENT

6531

BAV21WS

100R

I536

3531

1502

PFC5000

SUPPLY

TEMPERATURE

6533

I556

6534

BZX384-C15

I557

2533

100K

F506

2500

470n

F507

VOLTAGE

CONTRLLED

OSCILLATOR

OVER

PROTECTIOM

POWER-ON

RESET

BZX384-B6V8

3530

220R BZX384-B3V9

I531

4n7

3537

2501

3505

*

2K2

2531

RES

V

3504

CONTROL

CIRCUIT

MAXIMUM

ON-TIME

PROTECTION

470p

2549

LOGIC

3533

100p

3

+t

Rs

3523

Rp

2

*

3507

+t

*

3509

+t

RES

9501
RES

5501

4

1

1M5

23

DMF-2405

9503

RES

3502

*

VALLEY

*

TEA1620 (Basic)

7531

TEA1623 (IDTV)

LOGIC

STOP

5

RC

OSC

1V

LOW FREQ

8K2

F

1.8 U

2.5V

6

REG

2V7

+

11

AUX

0V3

GND SGND NC

4

1

9502

*

5500

1

*

23

9504

*

3503

*

DSP

START-UP

CURRENT SOURCE

START-UP

CURRENT SOURCE

CURRENT
SENSING

OUTPUT
DRIVER

OVER

POWER

PROTECTION

3

SUPPLY

PWM

10X

-

4

2

1507

For 70W Subwoofer

Drain

HVS

Demag

Sense

Driver

3518

3K3

VCC

VALLEY

+

THERMAL
SHTDWN

PROT
LOGIC

POWER-UP

RESET

110

789

RES

2502

14

297V

7
0V

9

0V

11
2V2

1

3517

I520

131415 162

2508

I513

F502

I519

BLANK

+

+

100n

I517

3514

2513

330K

SOURCE

DRAIN

1500 B2

3575 D9
3576 D9
3577 D8
3578 C8
3579 C9
3589 C10
4534 E8
4535 F8
4536 F9
4537 E9
4538 G6
5500 B4
5501 B4
5502 A5
5503 B5
5511 C6
5512 C7
5513 E5
5531 E7
5532 F5
5533 F2
5534 E8
5535 F8
5536 E9
5537 F9
5551 A8
5552 A10
5561 B8
5562 B8
6500 B6
6511 E1
6512 E1
6514 C6
6531 F2
6532 F2
6533 F3
6534 F3
6535 E8
6536 F8
6537 F8
6538 F1
6540 F6
6541 A8
6551 A8
6562 B8
6563 B8
6564 E9
6565 E9
6566 E10
6571 C10
6572 D8
6573 D8
6575 D6
6576 F8
7511 C2
7512 C5
7513 E7
7514 C5
7531 E3
7532 F2
7535 F9
7536 G10
7541 A7
7561 E10
7571 D9
7573 C9
9500 B2
9501 B4
9502 B4
9503 C4
9504 C4
9505 B5
9506 A5
9507 B2
9508 C2
9509 A10
9510 A9
9511 B5
9512 F6
9513 C8
9514 B10
9532 F5
9536 E9
9537 F9
9589 D10
F500 A2
F501 A2
F502 A5
F503 B2
F504 C2
F505 B2
F506 B3
F507 C3
F508 B6
F509 B6
F510 D6
F535 E10
F536 E10
F537 F10
F541 A8
F542 B7
F551 B10
F552 A9
F561 B10
F562 B9
F563 B10
F564 E11
F573 C10
I501 A6
I502 B6
I503 B1
I504 C1
I505 C1
I506 A5
I507 B5
I511 C2

I513 C5
I514 C6
I515 C6
I516 C6
I517 C5
I518 D5
I519 D5
I520 E5
I521 D6
I523 E6
I524 C6
I527 E2
I529 F6
I531 G3
I532 F5
I533 E5
I535 E6
I536 G2
I537 E8
I538 F8
I539 F8
I540 F7
I541 F1
I542 A7
I543 A7
I544 F6
I545 G9
I546 F10
I547 F10
I548 F10
I551 A8
I552 A8
I553 F1
I554 G1
I555 F1
I556 F3
I557 F3
I561 D8
I562 B8
I565 E9
I571 D8
I572 C8
I573 C8
I574 C9
I575 E7
I576 C9
I577 D8
I578 D9
I579 B8

1501 A2
1502 A3
1503 A7
1504 A1

A

B

C

D

E

F

G

1505 B1
1506 B1
1507 C4
1508 C1
1509 C1
1510 D1
1532 E6
1535 A10
1542 B8
1543 B10
1545 G6
2500 B3
2501 A3
2502 B4
2503 A6
2504 B6
2505 B6
2506 A5
2507 B6
2508 B5
2509 C1
2511 D2
2512 E2
2513 E5
2514 D6
2515 D6
2516 D5
2517 E2
2518 E6
2519 D5
2528 F1
2530 F2
2531 F3
2532 F2
2533 G3
2534 F5
2535 F9
2536 F9
2537 F9
2538 E8
2539 F8
2540 G8
2541 A7
2542 B7
2543 F6
2544 G2
2545 F6
2546 F6
2547 E10
2548 F10
2549 G3
2550 F6
2551 A8
2552 B9
2553 A10
2561 C8
2562 C9
2563 B9
2564 E9
2565 B8
2566 E10
2570 D7
2571 C9
2572 D10
2573 E7
3500 C1
3501 C1
3502 C4
3503 C4
3504 B3
3505 B3
3506 C1
3507 A4
3508 A5
3509 A4
3510 B5
3511 D6
3512 E2
3513 C6
3514 D5
3515 D5
3516 D5
3517 E4
3518 E4
3519 F1
3520 D6
3521 C6
3522 D5
3523 A3
3524 C5
3527 F2
3528 F1
3529 D1
3530 F3
3531 G2
3532 E6
3533 F3
3534 F2
3535 G9
3536 F10
3537 G3
3538 G5
3539 G5
3541 A7
3542 F6
3563 E8
3565 E9
3571 C8
3572 C10
3573 D9
3574 D9

1503

LKS1AF

81

"$"

7541
BC857B

23

Vaux_GND

I506

3508

470R

45

5502

*

9506

*

2506

33n

2503

5503

23

I501

2

2n2

4

6500

F508

1

*

14

DMF-2810

9505
RES

4R7

RES

9511

3510

-T
I507

3513

7514

BC847B

2V3

2V3

7512

*

G

2K2

0V

3524

295V

D
S

0V

*

3522

3515

47K

-8V3

I532

3538

1K0

I518

100p

2519

I533

68P

2534

2R2 (IDTV)

1R8 (Basic)

0R1

3516

5513

1u0

9532

5532

I529

For IDTV Only

3R3

3539

Vaux_GND

470p

2516

100n

12
0V

2504

47K

6575

6514

3

2n2

I502

I514

I524

BAS316

3521

I516

1n5

2514

I521

3520

*

1N5062

2518

10n

6540

2546

470p

1545
Provision For
Lightning Protection

4538

Vaux_GND

I544

2505

3K3

F510

4K7

3511

For IDTV

5511

2515

Only

2507

*

F509

I515

470p

I523

1532

T315MA

I535

2550

33P

3542

68K

2545

10n
9512

2543

2n2

F508 268V / div DC

RES

*

*

2

3

4

5

8

9

15V6

4

1

5V

32

7513

TCET1103(G)

4R7

3532

5531

56

4

3

I540

2

110

SS22220-03

HOT

COLD

F511 15V5 / div DC
F531 2V7 / div DC
F537 0V (N.A.)

V_DG

I543

14

3541

I542

16V4

2541

F542

Vaux_GND

2542

5512

2570

9V3

1542

For Heatsink

18

17

16

15

14

13

12

AUDIO_GND1

11

AUDIO_GND2

10

470P

8V2

I575

220n

2573

Vaux_GND

7

8

Vaux_GND

9

F552 130V / div DC
F561 15V9 / div DC

F564 9V4 / div DC
F573 0V (N.A.)

47K

16V4

F541

47u 25V

I571

6573

6541

BZX384-C12

I551

I561

BZX79-C9V1

4534

RES

5534

1u0

5535

1u0
4535
RES

I539

For IDTV Only

9510

Audio_Gnd

I552

I579

2551

1n

6551

*

6563

5551

5562

*

2565

F562

1n

I562

6562

7V6

6V2

SB160

6536

SB180

2539

470P

*

I573

6572

220R

2538

470P

6535

2561

1n

I572

BC547B

I577

BZX384-B6V2

3563

Vaux_GND

AUDIO_GND1

3579

2K2

2571

15n

7571

6V8

I565

6576

BAS316

2535

Vaux_GND

2537

100V / div DC

5µs / div

AUDIO_GND2

I576

3573

3574

6564

BAS316

Vaux_GND

1m0 6.3V

16V2m2

5561

9513

RES

3571

*

3578

470R

3577

1K5

I537

I538

6537

STPS10L60D

2540

1n

I513 I516 I519 I533

100V / div DC

5µs / div

AUDIO_GND2

F552

160V

2552

100u

2563

*

2562

**

7573
PDTC114ET

82K

15K

3575

I578

4K7

3576

*

2564

100n

4537

10V

4536

2536

2m2

7535

SI2307DS

3535

I545

2V / div DC

5µs / div

*

*

1K0

6565

3565

I574

9536

RES

5536

RES

5537

RES

9537

RES

8V2

I547

AUDIO_GND1

1543

*

9514

*

6571
BAV70

K

BAS316

3536

*

100V / div DC

5µs / div

5552

27u

F551

6566

2547

2548

A1

A2

10n

2572

F535

1u0

Vaux_GND

1u0

Vaux_GND

I548

Vaux_GND

3
2
1

F563

F561

3572

F573

F536

180P

1535

0V

2566

100n

F537

PDTC143ZT

2553

9509

Vaux_GND

for DVD

3589

100R

9589

7561
PDTC143ZT

I546

7536

F564

3V3

Vaux_GND

Vbatt

140V

-Vaudio

-16V

+Vaudio

+16V

+6VA

Stdby_Con

POWER_DOWN

+3V

+6VA

+6V

Vau x

B

E_14480_116.eps

A4

A2
A4(3x)

A4

090904

123

4567891011