Philips HTS-4562 Service Manual

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Service

BD Home Theater System

HTS4562

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Tfswjdf Tfswjdf

Service

Service Manual

TABLE OF CONTENTS

Location Of PCB Boards

Versions Variation ...................................................... 1-2

Specifications ............................................................ 1-3

Measurement Setup .................................................. 1-6

Service Aids .............................................................. 1-7

ESD & Safety Instruction .......................................... 1-8

Lead-free Soldering Information................................ 1-9

Setting Procedure & Repair Instructions ......................2

Disassembly Instructions & Service Positions .............. 3

Block & Wiring .............................................................. 4

Diagram Quick Strart Guide ..........................................5

MAIN+VOL Bo a r d .......................................................... 6

Power Board .................................................................. 7

BD Board................................

Touch Board .................................................................. 9

Wireless Jack Board....................................................10

VFD+USB+MP3+AUX Board ......................................11

Mechanical Exploded View.......................................... 12

Revision List ................................................................ 13

............................................ 1-2

........................................ 8

Chapter

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

Published by RY_HF1111 Service Audio

ersion 1.1

Printed in The Netherlands Subject to modification

3139 785 35581

LOCATION OF PCB BOARDS

QPXFS

1 - 2

KBDL

VERSION VARIATION:

Type/Versions

Features

Output Power - 1000W

Voltage (220~240V)

Ipod Dock

Wireless ready

SERVICE SCENARIO MATRIX:

Type/Versions

Board in used

Main+VOL Board

HTS4562

/12

x x

HTS4562

/12

Power Board

VFD+USB+MP3+AUX Board

BD Board

Touch Board

Wireless Jack Board

Ipod Dock Module

*Bd= Board Level Replacement *C = Component Level Repair

SPECIFICATIONS

1 - 3

Media formats

AVCHD, BD, BD-R/ BD-RE, BD-Video,

• DVD-Video, DVD+R/+RW, DVD-R/RW, DVD+R/-R DL, CD-R/CD-RW, Audio CD, Video CD/SVCD, Picture les, MP3 media, WMA media, DivX (Ultra)/ DivX Plus HD media, USB storage device

File formats

Audio: .aac,.mka, .mp3, .wma, .wav, .mp4,

• .m4a Video:

•

.avi,.divx, .mp4, .mkv,.asf,.wmv,

•

.mpg,.mpeg, .rmvb, .rm (Available only in Asia

•

Pacic and China)

•

Picture: .jpg,.jpeg,.gif,.png

Video formats

If you have a high denition TV, your home theater allows you to play your video les with:

Resolution: 1920 x 1080 pixels at

• Frame rate: 6 ~ 30 frames per second.

•

.avi les in AVI container

Audio codec

PCM, AC-3, DTS core, MP3, WMA

Video codec Bit rate

DivX 3.11,DivX 4.x, DivX 5.x, DivX 6.x

MPEG 1, MPEG 2 20Mbps

10Mbps max

(peak 40Mbps)

Audio formats

Your home theater supports the following audio les.

Extension Container Audio

codec

.mp3 MP3 MP3 32kbps ~

.wma ASF WMA 64kbps ~

.aac AAC AAC,

HE-AAC

.wav WAV PCM 1.4Mbps

.m4a MKV AAC 192kbps

.mka MKA PCM 27.648

.mka MKA AC-3 640kbps

.mka MKA DTS core 1.54Mbps

Bit rate

320kbps

160kbps

192kbps

Mbps

MPEG 4 ASP 10Mbps max

H.264/AVC HP@4.1/4.0; MP@3.2/3.1/3.0

WMV9 20Mbps

.divx les in AVI container

Audio codec

PCM, AC-3, MP3, WMA

Video codec Bit rate

DivX 3.11,DivX 4.x, DivX 5.x, DivX 6.x

MPEG 1, MPEG 2 20Mbps

MPEG 4 ASP 10Mbps max

20Mbps (peak 40Mbps)

10Mbps max

(peak 40Mbps)

.mka MKA MPEG 912kbps

.mka MKA MP3 32kbps ~

320kbps

.mka MKA WMA 64kbps ~

160kbps

.mka MKA AAC,

HE-AAC

192kbps

1 - 4

.mp4 or .m4v les in MP4 container

Audio codec

AC-3, MPEG, MP3, AAC, HE-AAC

.mkv les in MKV container

Audio codec Video codec Bit rate

PCM, AC-3, DTS core, MPEG, MP3, WMA, AAC, HEAAC

.asf and .wmv les in ASF container

Audio codec

PCM, AC-3, MP3, WMA

.mpg and .mpeg les in PS container

Video codec Bit rate

MPEG 1, MPEG 2 20Mbps (peak

40Mbps)

MPEG 4 ASP 10Mbps max

H.264/AVC HP@4.1/4.0; MP@3.2/3.1/3.0

MPEG 1, MPEG220Mbps (peak

MPEG 4 ASP 10Mbps max

H.264/AVC HP@4.1/4.0; MP@3.2/3.1/3.0

WMV9 20Mbps

Video codec Bit rate

MPEG 4 ASP 10Mbps max

H.264/AVC HP@4.1/4.0; MP@3.2/3.1/3.0

WMV9 20Mbps

20Mbps (peak 40Mbps)

40Mbps)

20Mbps (peak 40Mbps)

Amplier

Total o ut pu t po we r :

• Europe and Asia:1000W RMS (30%

• THD) Latin America: 780W (10% THD)

•

Frequency response: 20 Hz-20 kHz / ±3

• dB Signal-to-noise ratio: > 65 dB (CCIR) /

• (A-weighted)

Input sensitivity:

•

AUX1, AUX2: 1000 mV

• Music iLink: 500 mV

•

Video

•

Signalsystem:PAL / NTSC

•

HDMI output: 480i/576i, 480p/576p, 720p, 1080i, 1080p, 1080p24

Audio

•

S/PDIFDigital audio input:

•

Coaxial: IEC 60958-3

•

Optical: TOSLINK

•

Sampling frequency:

•

MP3: 32 kHz, 44.1 kHz, 48 kHz

•

WMA: 44.1 kHz, 48 kHz

•

Constant bit rate:

•

MP3: 112 kbps - 320 kbps

•

WMA: 48 kbps - 192 kbps

Radio

•

Tuning range:

•

Europe/China: FM 87.5-108 MHz (50 kHz)

•

Asia Pacic/Russia/Latin America: FM

87.5-108 MHz (50/100 kHz)

•

Signal-to-noise ratio: FM 50 dB

•

Frequency response: FM 180 kHz-12.5 kHz / ±3 dB

Audio codec Video codec Bit rate

PCM, DTS core, MPEG,MP3

MPEG 1, MPEG 2

20Mbps (peak 40Mbps)

USB

•

Compatibility: Hi-Speed USB (2.0)

•

Classsupport: USB Mass Storage Class (MSC)

•

File system:FAT16, FAT32, NTFS

•

Maximum memory support: < 160 GB

Main unit

Power supply:

• Europe/China: 220-240 V~, 50 Hz

• Latin America/Asia Pacic: 110-127

• V/220-240 V~, 50-60 Hz

Russia/India: 220-240 V~, 50 Hz

• Power consumption: 105 W

• Standby power consumption: ≤ 0.5 W

• Dimensions (WxHxD): 435 x 57 x 356.5

• mm Weight: 3.69 kg

•

Subwoofer

Total o ut pu t powe r :

•

Europe and Asia:230W RMS (30%

•

THD) Latin America: 180W RMS (10%

•

THD)

Impedance: 3 ohm

• Speakerdrivers:

•

Europe and Asia:165 mm (6.5”)

•

woofer India and Latin America: 203 mm

•

(8”) woofer

Frequency response: 20 Hz-150 Hz

• Dimensions (WxHxD): 196 x 395 x 342

• (mm) Weight: 4.8 kg

• Cable length: 3 m

•

1 - 5

Total o ut pu t powe r :

• Europe and Asia:4 x 135W RMS

• (30% THD) Latin America: 4 x 105W RMS (10%

• THD)

•

Speakerimpedance: 5ohm

•

Speaker drivers: 2 x 76.2 mm (3”) full range

•

Frequency response: 150Hz-20kHz

•

Dimensions (WxHxD):

•

small speakers:100 x 280 x 104mm

•

Weight:

•

small speakers: 0.98-1.07 Kg each

•

Cable length (front speakers):4m

•

Cable length (rear speakers):10m

Remote control batteries

2 x AAA-LR03-1.5V

•

Laser

Laser Type (Diode): InGaN/AIGaN (BD),

• AIGaInP (DVD/CD) Wave length: 405 +7nm/-7nm (BD), 655

• +10nm/-10nm (DVD), 790 +10nm/-20nm (CD) Output power (Max. ratings): 20mW

• (BD), 6mW (DVD), 7mW (CD)

Speakers

Center speaker:

Total o ut pu t powe r :

• Europe and Asia: 230W RMS (30%

• THD) Latin America: 180W (10% THD)

•

System:full range satellite

• Speakerimpedance: 3ohm

• Speaker drivers: 2 x 76.2 mm (3”) full

• range Frequency response: 150Hz-20kHz

• Dimensions (WxHxD): 280 x 95 x 92mm

• Weight: 1.40kg

• Cable length: 2m

• Front / rear speakers:

Speci cations subject to change without prior notice.

MEASUREMENT SETUP

Tuner FM

1 - 6

Bandpass

LF Voltmeter

e.g. PM2534

RF Generator

e.g. PM5326

DUT

250Hz-15kHz

e.g. 7122 707 48001

Ri=50

S/N and distortion meter

e.g. Sound Technology ST1700B

Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).

Use Audio Signal Disc (replaces test disc 3)

DUT

SBC429 4822 397 30184

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

SERVICE AIDS

Service Tools:

Universal Torx driver holder .................................4822 395 91019

Torx bit T10 150mm ...........................................4822 395 50456

Torx driver set T6-T20 .........................................4822 395 50145

Torx driver T10 extended .....................................4822 395 50423

Compact Disc:

SBC426/426A Test disc 5 + 5A ...........................4822 397 30096

SBC442 Audio Burn-in test disc 1kHz .................4822 397 30155

SBC429 Audio Signals disc .................................4822 397 30184

Dolby Pro-logic Test Disc ....................................4822 395 10216

HANDLING CHIP COMPONENTS

1 - 7

WARNING

1 - 8

ESD

WAARSCHUWING

ll ICs and many other semi-conductors 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 via a wrist wrap with resistance. Keep components and tools also at this potential.

ATTENTION

Tous les IC et beaucoup d’autres semi-conducteurs sont sensibles aux décharges statiques (ESD). Leur longévité pourrait être considérablement écourtée par le fait qu’aucune précaution n’est prise à leur manipulation. Lors de réparations, s’assurer de bien être relié au même potentiel que la masse de l’appareil et enfiler le bracelet serti d’une résistance de sécurité. Veiller à ce que les composants ainsi que les outils que l’on utilise soient également à ce potentiel.

Complete Kit ESD3 (small tablemat, wristband,

connection box, estention cable and earth cable ....... 4822 310 10671

Wristband tester .................................................................4822 344 13999

WARNUNG

Alle ICs und viele andere Halbleiter sind empfindlich gegenüber elektrostatischen Entladungen (ESD). Unsorgfältige Behandlung im Reparaturfall kan die Lebensdauer drastisch reduzieren. Veranlassen Sie, dass Sie im Reparaturfall über ein Pulsarmband mit Widerstand verbunden sind mit dem gleichen Potential wie die Masse des Gerätes. Bauteile und Hilfsmittel auch auf dieses gleiche Potential halten.

ESD PROTECTION EQUIPMENT

Alle IC’s en vele andere halfgeleiders zijn gevoelig voor electrostatische ontladingen (ESD). Onzorgvuldig behandelen tijdens reparatie kan de levensduur drastisch doen verminderen. Zorg ervoor dat u tijdens reparatie via een polsband met weerstand verbonden bent met hetzelfde potentiaal als de massa van het apparaat. Houd componenten en hulpmiddelen ook op ditzelfde potentiaal.

AVVERTIMENTO

Tutti IC e parecchi semi-conduttori sono sensibili alle scariche statiche (ESD). La loro longevità potrebbe essere fortemente ridatta in caso di non osservazione della più grande cauzione alla loro manipolazione. Durante le riparazioni occorre quindi essere collegato allo stesso potenziale che quello della massa dell’apparecchio tramite un braccialetto a resistenza. Assicurarsi che i componenti e anche gli utensili con quali si lavora siano anche a questo potenziale.

Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used.

Safety components are marked by the symbol

CLASS 1

LASER PRODUCT

Veiligheidsbepalingen vereisen, dat het apparaat bij reparatie in zijn oorspronkelijke toestand wordt teruggebracht en dat onderdelen, identiek aan de gespecificeerde, worden toegepast.

De Veiligheidsonderdelen zijn aangeduid met het symbol

3122 110 03420

Les normes de sécurité exigent que l’appareil soit remis à l’état d’origine et que soient utiliséés les piéces de rechange identiques à celles spécifiées.

Less composants de sécurité sont marqués

Bei jeder Reparatur sind die geltenden Sicherheitsvorschriften zu beachten. Der Original zustand des Geräts darf nicht verändert werden; für Reparaturen sind Original-Ersatzteile zu verwenden.

Sicherheitsbauteile sind durch das Symbol

markiert.

Le norme di sicurezza esigono che l’apparecchio venga rimesso nelle condizioni originali e che siano utilizzati i pezzi di ricambio identici a quelli specificati.

Componenty di sicurezza sono marcati con

After servicing and before returning set to customer perform a leakage current measurement test from all exposed metal parts to earth ground to assure no shock hazard exist, The leakage current must not exceed 0.5mA.

Warning !

Invisible laser radiation when open. Avoid direct exposure to beam.

Varning !

Osynlig laserstrålning när apparaten är öppnad och spärren är urkopplad. Betrakta ej strålen.

Varoitus !

Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina näkymättömälle laserisäteilylle. Älä katso säteeseen!

DK Advarse !

Usynlig laserstråling ved åbning når sikkerhedsafbrydere er ude af funktion. Undgå udsaettelse for stråling.

"Pour votre sécurité, ces documents doivent être utilisés par des spécialistes agréés, seuls habilités à réparer votre appareil en panne".

Pb(Lead) Free Solder

When soldering , be sure to use the pb free solder.

INDENTIFICATION:

Regardless of special logo (not always indicated)

onemusttreatallsetsfrom1 Jan 2005onwards,according next rules:

Important note: In fact also products of year 2004must be treatedin this way as long as youavoid mixingsolderalloys(leaded/ lead-free). So best to always use SAC305 and the higher temperatures belong to this.

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

• Use only lead-free solder alloy Philips SAC305 with

ordercode062214900106. If lead-free solder-paste is required, please contact the manufacturer of your solder-equipment. In general use of solder-paste withinworkshops shouldbeavoidedbecausepaste is not easy to store and to handle.

• Use only adequate solder tools applicable for lead-

free solder alloy. The solder tool must be able – To reach at least a solder-temperature of 400 @C, – To stabilize theadjustedtemperature atthesolder-

tip

– To exchange solder-tips fordifferent applications.

• Adjust your solder tool so that a temperature around

360@C – 380@C is reachedand stabilized at thesolder joint.Heating-timeofthesolder-jointshould notexceed ~ 4 sec. A void temperaturesabove 400@C otherwise wear-out of tips will rise drastically and flux-fluid will be destroyed. To avoid wear-out of tips switch off unused equipment, or reduce heat.

• Mix of lead-free solder alloy / parts with leadedsolder

alloy / parts is possible but PHILIPS recommends strongly to avoidmixed solderalloy types (leadedand lead-free). Ifonecannot avoid ordoes not knowwhether product is lead-free, clean carefully the solder-joint from old solder alloy and re-solder with new solder alloy (SAC305).

• 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 BGA-ICs: – Always use the 12nc-recognizable soldering

temperature profile of the specific BGA (for desolderingalwaysuse thelead-free temperatureprofile, in case of doubt)

– Lead free BGA-ICswillbe delivered in so-called ‘dry-

packaging’(sealedpack including a silica gelpack) to protect the IC against moisture. After opening,

1 - 9

dependent of MSL-level seenon indicator-labelin the bag, the BGA-IC possibly still has to be baked dry. (MSL=Moisture Sensitivity Level). This will be communicated via AYS-website. Do not re-use BGAs at all.

• Forsets producedbefore 1.1.2005(except products

of 2004), containing leaded solder-alloy and components,allneededspare-partswill be available till the end of the service-period. For repair of such sets nothing changes.

• On our websitewww.atyourservice.ce.Philips.com

you find more information to:

• BGA-de-/soldering (+ baking instructions)

• Heating-profiles of BGAs and other ICs used in Philips-sets

You will find this and more technical information within the “magazine”, chapter “workshop news”.

For additional questions please contact your local repair-helpdesk.

Software upgrade & Procedure to restore product setting

1)Restore factory setting

a) Press “ ” <Home> button on R/C.

b) Select <SETUP>, then press “OK” button on R/C.

c) Select <Advanced setup> ,then press < OK > button on R/C.

d) Select <Restore default settings>,then press <OK> to confirm.

2)Password change

a) Press “

” <Home> button on R/C.

b) Select <SETUP>, then press “OK” button on R/C.

c) Select <preference setup>, then press <OK> button on R/C.

d) Select <Change Password> <Confirm>, then press <OK> button

on R/C.

“0000” is default password supplied.

3)Trade mode

5) Upgrading new software

Method 1: Update software from a USB storage device

a) Create a folder named “UPG_ALL” in your USB storage device,

and Copy the latest upgrading software into the folder.

b) Connect the USB storage device to the home theater.

c) Press “

” <Home> button on R/C, and select <Setup>.

d) Select <Advance Setup> <Software Update> <USB>.

e) TV will show message as follow:

Now searching for upgrade software! Please wait...!

Software upgrade will take 5 minutes

Do not switch off!

Package version: 000025.0

Software BE Completed

Software FE Completed

Software MCU1: Not started

Software Dock: 2%

Software MCU3: Not started

Software upgrade will take 5 minutes

Do not switch off!

2 - 12 - 1

b) Press “

” <Home> button on R/C, and select <Setup>.

c) Select <Advance Setup> <Software Update> <Network>.

d) TV will show message as follow:

Now searching for upgrade software! Please wait...!

Software updates for this player have been found. Do you want to upgrade?

a) In open model,press “

” <Home> button on R/C.

b) Press “2” “5” “9” on R/C,VFD will display “TRA ON” or “TRA

OFF”.

4)Check software version

a) Press “

” <Home> button on R/C

b) Select <Setup>, then press <OK> button on R/C.

c) Select <Advanced Setup> <Version Info.>,then press <OK>

button on R/C.

d) TV will show message as follow:

Model:HTS4562/12 Version: System SW:027.00 Subsystem SW:20-00-00-00 Ethernet MAC:00:25:D1:01:8D:6C For more information,frequently asked questions and software updates,please visit philips.com/support

e) Select <Close> on the version display screen and press <OK>

button to exit .

Software updates for this player have been found. Do you want to upgrade?

Cancel

Start

f) Select <Start>, press <OK> button on R/C.

Software upgrade will take 5 minutes

Do not switch off!

Package version: 000025.0

Software BE Completed

Software FE Completed

Software MCU1: 1%

Software Dock: Failed

Software MCU3:

g)The set will shut down automatically when the software upgrade is completed.

Method 2: Update software from the internet

Note: To check for new updates, compare the current software version of your home theater with the latest software version (if available) on the Philips web site, and for BD-Live application and software update, make sure that the network router has access to

the Internet and the firewall is disabled. a) The “LAN” jack at the back panel of the set must be connect to the network router via network cable and the set connect to TV,

Prepare the connection as shown follow:

/NI IMDH

CRA IMDH

Cancel

Start

e) Select <Start>, press <OK> button on R/C.

Software upgrade will take 5 minutes

Do not switch off!

Package version: 000025.0

Software BE 80%

Software FE Completed

Software MCU1:

Software Dock:

Software MCU3:

Software BE 80%

Software FE Completed

Software MCU1:

Software Dock:

Software MCU3:

LAN

www

Software upgrade will take 5 minutes

Do not switch off!

Package version: 000025.0

Software BE Completed

Software FE Completed

2 - 22 - 2

c) Assembly Blu-ray Loader to “J800”,”J900”,”J905” on the top of

BD Board as shown below.

Software MCU1: Not started

Software Dock: 2%

Software MCU3: Not started

Software upgrade will take 5 minutes

Do not switch off!

Package version: 000025.0

Software BE Completed

Software FE Completed

Software MCU1: 1%

Software Dock: Failed

Software MCU3:

f) The set will shut down automatically when the software upgrade is completed.

K:16

K:11

K911

d) Remove soldered joint on the ESD protection points.

The ESD protection points on the top of board

Top side view of OPU

The ESD protection points on the top of board

Bottom side view of OPU

Note: The 2 ESD protection points on any one side must be

soldered if

o the Blu-ray Loader is OK and needs to be disconnected

from connector J800, J900 and J905 of the BD Board.

o the defective Blu-ray Loader is needed to be send back to

supplier for failure analysis and to support backcharging evidence.

CAUTION! This information is conﬁ dential and may not be

distributed.Only a qualiﬁ ed service person should reprogram the Region Code.

6)How to replace the defective Blu-ray Loader

a) Remove the defective Blu-ray Loader.

b) Remove the shield cover at the top of Blu-ray Loader as shown

below.

REPAIR INSTRUCTIONS

2 - 32 - 3

All Functions are not working

Check all cables of system are loose or bad insert

Standby led of panel whether is light

Check all Voltages are 3.3V and 1.8V

All Functions are not working

Check F901 of power PCB whether is bad

Check 2pin of CN903 and 3pin of CN904 Voltage if are BK5V

Power Supply is not working

All Functions have no Sound

Power Supply is not working

All Voltages have no output

Touch key has no function

+33V Voltage has no output

-27V Voltage has no output

+12V Voltage has no output

+5V Voltage has no output

BK5V Voltage has no output

Aux In has no Sound

MP3 In has no Sound

MIC In has no Sound

All Functions have no Sound

Check power IC Voltage if is +33V

Check main pcb Voltage if is +5V

Check AMP pcb Audio Voltage if is 3.3V

Check AMP pcb Voltage if is P+12V

Check 39pin of IC5006 if is high3.0V or low 0V

Tuner has no Sound

IC5006

Coaxial In has no Sound

Touch key has no function

Check pin17 of U1 Voltage if is +5V

Optical has no Sound

Ipod has no Sound

Aux In has no Sound

MP3 In has no Sound

Change this jack

MIC In has no Sound

Change this jack

Tuner has no Sound

Coaxial In has no Sound

Optical has no Sound

Check JK303/3Pin approx+3.3V

Ipod has no Sound

REPAIR INSTRUCTIONS

2 - 42 - 4

BD Functions are not working

Loading has no Disc

All Video has no output

Ethernet is not starting

3 - 1 3 - 1

DISASSEMBLY INSTRUCTIONS

Dismantling of theTop & Front Panel Assemble

1) Loosen 6 screws and remove the Top Cover by lifting the rear portion upwards before sliding it out towards the rear.

- 4 screws “A” at the back panel as shown in  gure 1.

- 1 screw “B” each on the left & right side as shown in  gure 2.

Figure 1

Figure 2

2) Open the DVD Tray by using the Open/Close Button while the Set is ON and disconnect the mains supply after removing the DVD Door.

Note: If this is not possible, the DVD Tray has to be open manually.

a) Loosen 4 screws “ E “ at the DVD Module as shown in  gure 3. b) Rotate the gear wheel on the side of DVD Module to remove DVD Door as shown in  gure 4 and  gure 5 then close the tray

manually by pushing it back in.

3) Loosen 5 screws remove the front panel.

- 3 screws “C” at the bracket as shown in  gure 6.

- 1 screw “D” each on the left & right side as shown in  gure 7.

Figure 5

Figure 6

Figure 7

Figure 3

Dismantling of the VFD Board

1) Loosen 2 screws “F” on the top of VFD Board as shown in  gure 8.

Figure 4

Figure 8

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