Sharp 32LW-92H User manual

1
32LW-92H
SERVICE MANUAL
This document has been published to
be used for after sales service only.
AK-45 CHASSIS
In the interests of user safety (required by safety
regulations in some countries) the set should be re-
stored to its original condition and only parts identi-
cal to those specified should be used.
CONTENTS
ELECTRICAL SPECIFICATIONS ........................................................................................ 3
IMPORTANT SERVICING NOTES ...................................................................................... 4
CONTROLS & TERMINALS ................................................................................................ 5
PRINTED WIRING BOARD LAYOUT ................................................................................. 7
PARTS LISTING ................................................................................................................... 8
HOW TO UPDATE THE TECHNICAL INFORMATION ...................................................... 11
SHARP CORPORATION
MODEL 32LW-92H
SE0032LW92H00
Issued: 22nd Jan. 2004
PAL I SYSTEM COLOUR TELEVISION
In order to service the model 32LW-92H , refer to
the AK-45 Chassis Service Manual
(SE00AK45CHA00).

2
32LW-92H
Use this page to keep any special servicing information as Technical Report (Bulletin), Technical Information, etc.
If only part number changes are required, just change part number directly the part number in the Parts Listing Section.
If you need more information, please refer to the Technical Report (Bulletin).
SERVICE MANUAL UPDATE LOG SHEET
Part No.
Technical Report No.
Technical Bulletin No. Cause / Solution Page No. Application
Data /Serial No.

3
32LW-92H
ELECTRICAL SPECIFICATIONS
WARNING
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug
and power receptacle, when servicing this chassis.
To prevent electric shock, do not remove cover. No user-serviceable parts inside. Refer servicing to
qualified service personnel.
Specifications are subject to change without prior notice.
•Power Input .................... 220V-240 Volts AC 50 Hz
•Power Consumption
Normal Operation (Method IEC60107) ............... 90 W
Stand-by Operation .......................................... < 4 W
•Audio Power Output Rating (MPO) / Impedance
Internal Left Speaker ................................. 10 W, 8 Ω
Internal Right Speaker ............................... 10 W, 8 Ω
•Speakers
2 ways speaker elliptic (2 pcs) ............ 42 x 180 mm
Tweeter (2 pcs) ................................................... 27mm
•Convergence (Maximum Misconvergence)
•Picture Intermediate frequency ......... 38.9MHz
•Sound Carrier Trap ........................... 32.9MHz
•Adjacent Sound Carrier Trap ............. 40.9MHz
•Adjacent Picture Carrier Trap ........... 30.9MHz
•Aerial Input Impedance
VHF/UHF ................. 75 ohm Unbalanced
•Tuning Ranges ..... 45.75MHz thru 855.25 MHz
VHF: IR A - J / CC01-CC68 (Hiperband)
UHF: I21 - I69 CH
AREA 32” W
A0.4
BC 1.4
DE 1.0
FGHJ 1.8
KLMN 1.6
F’G’H’J’ 1.6
STUV 1.4
mm
•White Level
Apply the rated voltage at the rated frequency to the TV set, while it is receiving full white pattern RF signal of 60
dB/µV from its RF input via the pattern generator.
Turn all picture controls to maximum value. Measure the colour temperatures at the center of the screen by
using the colour analyzer.
X=0.290 ± 0.015 Y=0.284 ± 0.015

4
32LW-92H
IMPORTANT SERVICING NOTES
Only qualified service personnel are allowed to carry out maintenance and repair of this receiver.
Servicing of High Voltage System and CRT
It is important that the static charge is removed from the high voltage system when carrying out work on the
receiver. This can be achieved by connecting a 10K resistor (with a suitably insulated lead) from the CRT
cavity connector to the CRT ground tag. This must be carried out with the AC supply disconnected from the
receiver.
Note the following:
•The CRT in this receiver employs Integral Implosion Protection.
•If the CRT has to be changed it MUST be replaced with the correct type for continued safe working.
•DO NOT lift the CRT by its neck.
•When handing the CRT, ensure that shatterproof goggles are worn.
•Ensure that the CRT is discharge before handling.
X-Ray
This receiver is designed to keep any x-ray emission to an absolute minimum. Some fault conditions and
servicing procedures may produce potentially hazardous x-ray radiation levels. This is a problem when in
close proximity to the receiver for long periods of time. To reduce any risks associated with this, please
observe the following precautions:
1. When undertaking any servicing on this chassis, DO NOT increase the EHT to more than 31 KV, (at a
instantaneous beam current of 1800 µA).
2. Ensure that during normal operation the EHT does not exceed 29.5 KV (at a beam current of 1800 µA).
This level has been preset in the factory. Always check that this level has not been exceeded after
carrying out any repair on the receiver.
3. DO NOT replace the CRT with any other type than that specified in the parts listing as this may cause
excessive x-ray radiation.
Before returning the receiver to the customer
In addition to the above checks, the following should also be carried out before returning the receiver to the
customer.
1. Inspect all the leads to ensure that they are dressed correctly and that they are not obstructed or pinched
by any other parts.
2. Ensure that all protective devices are in good condition. These will include nonmetallic control knobs,
insulating fish papers, cabinets backs, compartment covers or shields, mechanical insulators, etc.

5
32LW-92H
CONTROLS & TERMINALS
0(18
3& +
FRONT PANEL
/
5
69+6
/
5
)5217$9
$17 (;7
(;7
REAR PANEL
)$9
Speakers (left + right)
= Power On / Off
- + = Volume -/+
- P/CH + = Program -/+
MENU = Menu
AUDIO L () = Au io left
AUDIO R () = Au io right
VIDEO ()= VCR
= Hea phone 3,6 mm Ø
ANT = Antenna (75 W)
EXT.1 = Scart Socket 1 (with RGB)
EXT.2 = Scart Socket 2 (with SVHS)
Power Cable

6
32LW-92H
REMOTE CONTROL

= Stand By
= Cursor Up
= Cursor Right
OK = OK
= Info (Program Menu)
0 - 9 = Direct Program
-/-- = Double Digit
= Wide mode button
P/CH+ = Program +
+ = Volume +
= TV / Quit Menu
(;7
= EXT button
(EXT-1, RGB, EXT-2, EXT-2S, F-AV)
Yellow = Feature Menu
Bl e = Installation Menu
= Hold
 
= Update
= Inde Page
= Reveal
= E pand
= Mi

= Telete t
= Time

Red = Sound Menu
Green = Picture Menu
= Mute
I-II = Mono/Stereo - Dual I-II
- = - Volume
- P/CH = -Program
= Flash back button

M = Menu

= Cursor Down

= Cursor Left

7
32LW-92H
CHASSIS LAYOUT
Mother Unit
CRT Unit Control Panel Unit
Remote Control Unit

8
32LW-92H
PARTS LISTING
REPLACEMENT PARTS
Replacement parts which have special safety characteristics are identified in
this manual. Electrical components having such features are identified by
in the Replacement Parts Listing.
The use of a substitute replacement part which does not have the same safety
characteristics as the factory recommended is not permitted.
Replacement parts not shown in this service manual may create shock fire, or
other hazards.
HOW TO ORDER REPLACEMENT PARTS
To have your order completed promptly and correctly please supply the follow-
ing information.
1. MODEL NUMBER 2. REF. NO.
3. PART NO. (*) 4. DESCRIPTION
5. CODE 6. QUANTITY
(*) When ordering any part, a “V” should be added before the Part No.
(*)
REF No. PARTS DESCRIPTION SN CODE EX CODE
D108 30001315 DIODE BYD33D 1A/200V 20A AA AE
D110 30001288 DIODE BYV27-200 2A/200V 50A AA AD
D111 30001318 DIODE BA159 1A/800V 20A AA AB
D118 30009366 DIODE UF5402 3A/200V 150A AB AF
D119 30009366 DIODE UF5402 3A/200V 150A AB AF
D121 20092405 CN.ASY.37-DIODE UF5407+FERRITE BAR 5*8 AB AE
D127 30001315 DIODE BYD33D 1A/200V 20A AA AE
D130 30001329 DIODE 1N4007 1A/1000V 30A AA AB
D131 30001318 DIODE BA159 1A/800V 20A AA AB
D133 30003722 DIODE ZENER ZPD15V AA AA
D2 30001371 DIODE ZENER 5.1V ZPD AA AB
D3 30001371 DIODE ZENER 5.1V ZPD AA AB
D4 30001371 DIODE ZENER 5.1V ZPD AA AB
D5 30001371 DIODE ZENER 5.1V ZPD AA AB
D601 30001377 DIODE ZENER 33V UZT 33B AB AF
D602 30001318 DIODE BA159 1A/800V 20A AA AB
D603 30001299 DIODE UF5404 3A/400V 150A AA AD
D604 30001299 DIODE UF5404 3A/400V 150A AA AD
D609 30001318 DIODE BA159 1A/800V 20A AA AB
D610 30001318 DIODE BA159 1A/800V 20A AA AB
D611 30007681 DIODE UF5407 3A/800V 150A AB AF
D613 30001291 DIODE HER107 1A/800V 30A AA AB
D615 30001318 DIODE BA159 1A/800V 20A AA AB
D625 30001320 DIODE GUC BY228 AB AF
D627 30001284 DIODE 1N4148 0.15A/100V 0.5A AA AB
D902 30001318 DIODE BA159 1A/800V 20A AA AB
D903 30001284 DIODE 1N4148 0.15A/100V 0.5A AA AB
D904 30001318 DIODE BA159 1A/800V 20A AA AB
D905 30001318 DIODE BA159 1A/800V 20A AA AB
D907 30001318 DIODE BA159 1A/800V 20A AA AB
D908 30014353 DIODE BAT85 AA AC
PACKAGED CIRCUITS
X100 30002852 XTAL REZ 455KHZ AA AD
X200 30002851 XTAL 4MHZ L.C=30PF AC AH
X201 30008778 XTAL 20.25MHZ AB AF
X500 30006662 XTAL 6MHZ AC AH
X700 30001756 XTAL 18.432MHZ AE AP
COILS
L101 30018866 LINE FILTER SAFE 2X22MH 10mmX12.5mm AC AH
L102 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L103 30001992 FIXED COIL 10UH Q65 K-A AA AB
L107 30007308 CAP CER 220PF 1KV K (PULSE) AA AD
L203 30001996 FIXED COIL 22UH Q40 K AA AB
L206 30001979 FIXED COIL 1UH Q45 M-A AA AB
L207 30001979 FIXED COIL 1UH Q45 M-A AA AB
L212 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L213 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L214 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L215 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L216 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L217 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L218 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L220 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L227 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L232 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L236 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L239 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L247 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L251 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L252 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L263 30001979 FIXED COIL 1UH Q45 M-A AA AB
L264 30001979 FIXED COIL 1UH Q45 M-A AA AB
L265 30001979 FIXED COIL 1UH Q45 M-A AA AB
L266 30001987 FIXED COIL 4.7UH Q70 K-A AA AB
!
REF No. PARTS DESCRIPTION SN CODE EX CODE
. 30011621 32" CRT TUBE SAFE 50HZ SF CP DL
. 30014862 32"16:9DEGCOIL&EARTH CB.SAFE WO/UL SLAT AP BA
TUNER
TU200 30009637 TUNER WSP (PLL) 38.9 MK2 - BATCH AR BC
INTEGRATED CIRCUITS
IC100 30015087 IC SAFE OPTOCOUPLER TCET1102G AA AE
IC101 30001622 IC 7805 (1A) AB AF
IC101 30018063 IC HT48RA0A OTP AF AR
IC102 30001668 IC LM317T AC AH
IC104 30001500 IC LM7808 AC AH
IC106 30011968 IC SMPS MC44608 DIP8 AF AQ
IC116 30001506 IC TL431 AC AH
IC200 30019492 IC VDP3134Y AP BA
IC201 30001619 IC VIDEO SWITCH TEA6415C DIP20 AM AY
IC206 30021082 IC TDA9885T/V3-SO24 AK AV
IC301 30016113 IC AAMP TDA7269A 2*14W MULTIWATT11 AH AV
IC600 30007793 IC STV9379FA AK AW
IC601 30001506 IC TL432 AC AH
IC700 30013658 IC MSP3410G SDIP64 AS BD
IC704 30001518 IC TDA1308 AE AP
IC900 30018768 IC TDA6109 AK AW
IC901 30014346 IC 78L05 TO-92 (100mA) AA AE
IC902 30014346 IC 78L05 TO-92 (100mA) AA AE
TRANSISTORS
Q100 30001453 TR BC337 AA AC
Q103 30001454 TR BC548B AA AC
Q106 30001454 TR BC548B AA AC
Q107 30001428 TR BF423 AA AC
Q110 30001384 TR MCR22-6 AB AG
Q600 30001429 TR BUK444-200A AD AM
Q601 30001435 TR NBJT BC639 1A/100V TO92 AA AB
Q602 30001441 TR BU2508AF AE AP
Q900 30001427 TR BF422 AA AE
Q906 30001452 TR BC327 AA AC
DIODES
D1 30001371 DIODE ZENER 5.1V ZPD AA AB
D100 30001329 DIODE 1N4007 1A/1000V 30A AA AB
D100 30002733 LED INFRARED IR333 AA AC
D100 30001279 LED RED/GREEN LTL293SJ AC AH
D101 20108354 DIODE BRIDGE GBU4M 4A/1000V 150A(FORMLU) AB AE
D103 30001318 DIODE BA159 1A/800V 20A AA AB
D104 30001318 DIODE BA159 1A/800V 20A AA AB
D105 30001318 DIODE BA159 1A/800V 20A AA AB
D106 30001344 DIODE ZENER 6.2V 1/2W AA AB
PICTURE TUBE
!
!
!

9
32LW-92H
REF No. PARTS DESCRIPTION SN CODE EX CODE
L500 30001992 FIXED COIL 10UH Q65 K-A AA AB
L501 30001992 FIXED COIL 10UH Q65 K-A AA AB
L502 30001992 FIXED COIL 10UH Q65 K-A AA AB
L503 30001992 FIXED COIL 10UH Q65 K-A AA AB
L504 30001992 FIXED COIL 10UH Q65 K-A AA AB
L505 30001992 FIXED COIL 10UH Q65 K-A AA AB
L506 30006770 FIXED COIL 0.22UH AA AB
L601 30002031 FIXED COIL INJECTION 15MH AD AL
L602 30017085 LINEARITY COIL 20UH AD AM
L603 30002829 FIXED COIL BRIDGE 1.5MH AD AL
L700 30001996 FIXED COIL 22UH Q40 K AA AB
L701 30001996 FIXED COIL 22UH Q40 K AA AB
L702 30001996 FIXED COIL 22UH Q40 K AA AB
L703 30001996 FIXED COIL 22UH Q40 K AA AB
L711 30001996 FIXED COIL 22UH Q40 K AA AB
L714 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L715 30001971 FERRITE BEAT (805) BLM21A601S AA AD
L717 30001979 FIXED COIL 1UH Q45 M-A AA AB
L719 30001968 FERRITE BEAD (0805) BLM21B201S AA AE
CERAMIC FILTERS
Z200 30014261 FILTER SAW K3958M AF AR
Z201 30013163 FILTER SAW K9356 AK AV
TRANSFORMERS
TR100 30019432 TRF SMPS SAFE AK45 110° (170-270V) AG AS
TR600 30021290 TRF FBT SAFE 110° 50HZ LAYER AS BC
TR601 30002090 LINE DRIVER NEW TYPE AD AM
CAPACITORS
C100 30000352 CAP EL 100UF 16V M AA AB
C101 30000190 CAP CER 100PF 50V J CH AA AB
C102 30000084 CAP MKT SAFE 150NF 275V M AC P=15 AC AG
C103 30000190 CAP CER 100PF 50V J CH AA AB
C103 30000094 CAP MKT SAFE 220NF 275V M AC AA AB
C104 30000190 CAP CER 100PF 50V J CH AA AB
C105 30000290 CAP CER 10NF 50V Z F AA AB
C106 30000290 CAP CER 10NF 50V Z F AA AB
C106 30000371 CAP EL 22UF 50V M AA AB
C107 30000433 CAP CER 1NF 1KV M B AA AB
C107 30000421 CAP EL 220UF 400V M (FOR 28'') AG AS
C108 30000433 CAP CER 1NF 1KV M B AA AB
C108 30000161 CAP MKP SAFE 47NF 630V J AB AE
C109 30000225 CAP CER 220PF 50V J SL AA AB
C110 30000225 CAP CER 220PF 50V J SL AA AB
C111 30007308 CAP CER 220PF 1KV K (PULSE) AA AD
C113 30006940 CAP CER 2.7NF 1KV K B AA AB
C114 30007308 CAP CER 220PF 1KV K (PULSE) AA AD
C115 30000440 CAP CER SAFE 2.2NF 4KV M AA AC
C118 30007308 CAP CER 220PF 1KV K (PULSE) AA AD
C119 30000090 CAP MKT 22NF 100V J AA AB
C120 30007308 CAP CER 220PF 1KV K (PULSE) AA AD
C122 30007308 CAP CER 220PF 1KV K (PULSE) AA AD
C124 30000376 CAP EL 220UF 25V M AA AB
C130 30000436 CAP CER 10NF 1KV ZE AA AC
C133 30018259 CAP EL 4700UF 25V M AC AG
C134 30018259 CAP EL 4700UF 25V M AC AG
C135 30018259 CAP EL 4700UF 25V M AC AG
C137 30000367 CAP EL 1UF 250V M AA AB
C140 30000393 CAP EL 3.3UF 50V M AA AB
C141 30000359 CAP EL 1000UF 16V M AA AC
C142 30000387 CAP EL 33UF 50V M AA AB
C145 30000375 CAP EL 220UF 16V M AA AB
C148 30000360 CAP EL 1000UF 25V M AA AE
C152 30000375 CAP EL 220UF 16V M AA AB
C154 30000375 CAP EL 220UF 16V M AA AB
!
!
!
!
!
!
REF No. PARTS DESCRIPTION SN CODE EX CODE
C155 30000375 CAP EL 220UF 16V M AA AB
C160 30000076 CAP MKT SAFE 100NF 275V M AC AB AE
C161 30000440 CAP CER SAFE 2.2NF 4KV M AA AC
C162 30007708 CAP CER 1NF 1KV K (PULSE) AA AD
C164 30000362 CAP EL 1UF 50V M AA AB
C165 30000362 CAP EL 1UF 50V M AA AB
C166 30000225 CAP CER 220PF 50V J SL AA AB
C168 30000161 CAP MKP SAFE 47NF 630V J AB AE
C172 30000313 CAP CER 22NF 50V Z F AA AB
C212 30000352 CAP EL 100UF 16V M AA AB
C225 30000109 CAP MKT 470NF 63V J AA AD
C226 30000352 CAP EL 100UF 16V M AA AB
C229 30000345 CAP EL 10UF 50V M AA AB
C252 30000387 CAP EL 33UF 50V M AA AB
C253 30000345 CAP EL 10UF 50V M AA AB
C259 30000345 CAP EL 10UF 50V M AA AB
C265 30000109 CAP MKT 470NF 63V J AA AD
C266 30000109 CAP MKT 470NF 63V J AA AD
C277 30000345 CAP EL 10UF 50V M AA AB
C280 30000345 CAP EL 10UF 50V M AA AB
C283 30000345 CAP EL 10UF 50V M AA AB
C286 30000345 CAP EL 10UF 50V M AA AB
C327 30000109 CAP MKT 470NF 63V J AA AD
C348 30000109 CAP MKT 470NF 63V J AA AD
C351 30000345 CAP EL 10UF 50V M AA AB
C356 30000109 CAP MKT 470NF 63V J AA AD
C357 30000345 CAP EL 10UF 50V M AA AB
C358 30000345 CAP EL 10UF 50V M AA AB
C506 30000345 CAP EL 10UF 50V M AA AB
C507 30000393 CAP EL 3.3UF 50V M AA AB
C508 30000345 CAP EL 10UF 50V M AA AB
C522 30000345 CAP EL 10UF 50V M AA AB
C523 30000345 CAP EL 10UF 50V M AA AB
C524 30000345 CAP EL 10UF 50V M AA AB
C525 30000345 CAP EL 10UF 50V M AA AB
C530 30000375 CAP EL 220UF 16V M AA AB
C601 30000351 CAP EL 10UF 350V M AA AE
C603 30000402 CAP EL 47UF 100V M AA AB
C604 30000075 CAP MKT 100NF 250V K (DC) AA AD
C605 30000406 CAP EL 47UF 250V M (HR) 105° AD AL
C608 30000409 CAP EL 470UF 25V M AA AD
C609 30000082 CAP MKT 15NF 63V J AA AB
C612 30000348 CAP EL 10UF 160V M AA AB
C613 30000360 CAP EL 1000UF 25V M AA AE
C614 30000360 CAP EL 1000UF 25V M AA AE
C616 30023449 CAP MKP 4.7NF 2KV J AA AD
C617 30000123 CAP PP 33NF 630V K AC AG
C618 30000444 CAP CER 470PF 1KV KB AA AB
C619 30000367 CAP EL 1UF 250V M AA AB
C621 30000136 CAP MKP SAFE 12NF 2000V %3.5 AC AG
C622 30000137 CAP MKP 15NF 630V J AC AG
C623 30000124 CAP MKP 620NF 250V %5 AB AG
C624 30000177 CAP MKP SAFE 820NF 250V J AC AK
C631 30000296 CAP CER 100NF 100V Z F AA AB
C632 30000074 CAP MKT 100NF 63V J AA AC
C636 30009208 CAP CER 470PF 1KV K (PULSE) AA AC
C638 30000092 CAP MKT 220NF 63V J AA AD
C643 30000092 CAP MKT 220NF 63V J AA AD
C646 30000296 CAP CER 100NF 100V Z F AA AB
C648 30000069 CAP MKT 1NF 100V J AA AC
C700 30000352 CAP EL 100UF 16V M AA AB
C701 30000345 CAP EL 10UF 50V M AA AB
C708 30000407 CAP EL 470UF 16V M AA AC
C717 30000092 CAP MKT 220NF 63V J AA AD
C718 30000092 CAP MKT 220NF 63V J AA AD
C720 30000345 CAP EL 10UF 50V M AA AB
!

10
32LW-92H
REF No. PARTS DESCRIPTION SN CODE EX CODE
C724 30000345 CAP EL 10UF 50V M AA AB
C735 30000393 CAP EL 3.3UF 50V M AA AB
C736 30000345 CAP EL 10UF 50V M AA AB
C737 30000345 CAP EL 10UF 50V M AA AB
C739 30000345 CAP EL 10UF 50V M AA AB
C744 30000345 CAP EL 10UF 50V M AA AB
C754 30000352 CAP EL 100UF 16V M AA AB
C769 30000345 CAP EL 10UF 50V M AA AB
C771 30000345 CAP EL 10UF 50V M AA AB
C772 30000345 CAP EL 10UF 50V M AA AB
C776 30000352 CAP EL 100UF 16V M AA AB
C782 30000352 CAP EL 100UF 16V M AA AB
C784 30000362 CAP EL 1UF 50V M AA AB
C789 30000362 CAP EL 1UF 50V M AA AB
C791 30000362 CAP EL 1UF 50V M AA AB
C808 30000345 CAP EL 10UF 50V M AA AB
C809 30000409 CAP EL 470UF 25V M AA AD
C900 30000075 CAP MKT 100NF 250V K (DC) AA AD
C902 30000415 CAP EL 4.7UF 250V M AA AC
C904 30000287 CAP CER 10NF 50V K B AA AA
C905 30000350 CAP EL 10UF 250V M AA AD
C906 30000075 CAP MKT 100NF 250V K (DC) AA AD
C908 30000438 CAP CER 2.2NF 2KV AA AD
C909 30000359 CAP EL 1000UF 16V M AA AC
C915 30000407 CAP EL 470UF 16V M AA AC
C916 30000352 CAP EL 100UF 16V M AA AB
C931 30000075 CAP MKT 100NF 250V K (DC) AA AD
C932 30000367 CAP EL 1UF 250V M AA AB
CXXX 30000266 CAP CER 560PF 50V J SL AA AB
CXXX 30000371 CAP EL 22UF 50V M AA AB
RESISTORS
R100 30000718 RES CF 1/4W 4.7K J AA AB
R101 30000896 RES MF 1/4W 160K G AA AA
R102 30000801 RES CF 1/4W 7.5K J AA AA
R103 30000712 RES CF 1/4W 470R J AA AB
R104 30000801 RES CF 1/4W 7.5K J AA AA
R105 30000982 RES MF 1/4W 4.7K J AA AA
R106 30000712 RES CF 1/4W 470R J AA AB
R108 30000452 RES CF 1/4W 10R J AA AB
R112 30000551 RES CF 1/4W 18R J AA AB
R113 30000551 RES CF 1/4W 18R J AA AB
R114 30000471 RES CF 1/4W 10K J AA AB
R115 30000471 RES CF 1/4W 10K J AA AB
R116 30000689 RES CF 1/4W 3.9K J AA AB
R116 30001173 RES MO 1W 0.47R J AA AB
R117 30001257 RES MG SAFE 1/2W 4.7M J AA AD
R118 30000580 RES CF 1/4W 22R J AA AB
R121 30000526 RES CF 1/4W 1.5K J AA AB
R122 30000770 RES CF 1/4W 680R J AA AB
R123 30000712 RES CF 1/4W 470R J AA AB
R124 30000622 RES CF 1/4W 270R J AA AB
R131 30000495 RES CF 1/4W 1.2K J AA AB
R132 30000495 RES CF 1/4W 1.2K J AA AB
R133 30000880 RES MF 1/4W 130K F AA AA
R137 30000481 RES CF 1/4W 1M J AA AB
R138 30000660 RES CF 1/4W 3.3K J AA AB
R140 30015222 RES MO 1W 0.75R J AA AA
R150 30000466 RES CF 1/4W 1K J AA AB
R152 30001224 RES FUSE SAFE 1/2W 0.22R J AA AB
R165 30001159 RES MO 1W 0.33R J AA AB
R167 30018085 CAP VAR SAFE 510V K MFCN14D511 AA AD
R168 30018085 CAP VAR SAFE 510V K MFCN14D512 AA AD
R206 30000459 RES CF 1/4W 100R J AA AB
R207 30000459 RES CF 1/4W 100R J AA AB
R219 30000792 RES CF 1/4W 75R J AA AB
!
!
REF No. PARTS DESCRIPTION SN CODE EX CODE
R221 30000792 RES CF 1/4W 75R J AA AB
R231 30000792 RES CF 1/4W 75R J AA AB
R235 30000655 RES CF 1/4W 330R J AA AB
R247 30000500 RES CF 1/4W 12K J AA AB
R265 30000459 RES CF 1/4W 100R J AA AB
R266 30000459 RES CF 1/4W 100R J AA AB
R288 30000770 RES CF 1/4W 680R J AA AB
R317 30000792 RES CF 1/4W 75R J AA AB
R326 30000815 RES CF 1/4W 8.2K J AA AB
R336 30000466 RES CF 1/4W 1K J AA AB
R337 30000466 RES CF 1/4W 1K J AA AB
R338 30000466 RES CF 1/4W 1K J AA AB
R505 30000471 RES CF 1/4W 10K J AA AB
R506 30000471 RES CF 1/4W 10K J AA AB
R519 30000466 RES CF 1/4W 1K J AA AB
R537 30000466 RES CF 1/4W 1K J AA AB
R567 30000459 RES CF 1/4W 100R J AA AB
R568 30000459 RES CF 1/4W 100R J AA AB
R601 30000470 RES CF 1/2W 10K J AA AA
R603 30001244 RES FUSE SAFE 1/2W 0.47R J AA AB
R604 30001244 RES FUSE SAFE 1/2W 0.47R J AA AB
R605 30000927 RES MF 1/4W 220K J AA AB
R608 30001100 RES MO 1W 150R J AA AB
R611 30001244 RES FUSE SAFE 1/2W 0.47R J AA AB
R612 30000471 RES CF 1/4W 10K J AA AB
R613 30001234 RES FUSE 2W 33R J AA AC
R614 30001244 RES FUSE SAFE 1/2W 0.47R J AA AB
R616 30018904 RES MO 5W 4.7k J AA AD
R618 30001216 RES FUSE 1W 1.2R J AA AA
R630 30000872 RES MF 1/4W 120K F AA AA
R631 30000880 RES MF 1/4W 130K F AA AA
R639 30001162 RES MO 1W 390R J AA AB
R640 30001134 RES MO 2W 2.2R J AA AB
R641 30000988 RES MF 1/2W 0.47R J AA AB
R644 30000649 RES CF 1/2W 33R J AA AB
R645 30000580 RES CF 1/4W 22R J AA AB
R649 30001228 RES FUSE SAFE 1/2W 2.2R J AA AB
R650 30001082 RES MO 1/2W 1K J AA AB
R652 30000848 RES MF 1/4W 1K F AA AB
R657 30000466 RES CF 1/4W 1K J AA AB
R658 30000466 RES CF 1/4W 1K J AA AB
R723 30000459 RES CF 1/4W 100R J AA AB
R818 30000723 RES CF 1/4W 47K J AA AB
R900 30000788 RES CF 1/4W 6.8M J AA AB
R901 30000459 RES CF 1/4W 100R J AA AB
R902 30000459 RES CF 1/4W 100R J AA AB
R903 30000459 RES CF 1/4W 100R J AA AB
R904 30000535 RES CF 1/2W 150K J AA AB
R905 30000477 RES CF 1/4W 100K J AA AB
R906 30000477 RES CF 1/4W 100K J AA AB
R907 30023197 RES CC 1W 1.5K K AA AD
R908 30023197 RES CC 1W 1.5K K AA AD
R909 30000477 RES CF 1/4W 100K J AA AB
R910 30023197 RES CC 1W 1.5K K AA AD
R911 30000466 RES CF 1/4W 1K J AA AB
R912 30000459 RES CF 1/4W 100R J AA AB
R913 30021483 RES CC 1W 2.2K K AA AD
R914 30000459 RES CF 1/4W 100R J AA AB
R917 30000583 RES CF 1/4W 220R J AA AB
R923 30000583 RES CF 1/4W 220R J AA AB
R927 30000583 RES CF 1/4W 220R J AA AB
R930 30000477 RES CF 1/4W 100K J AA AB
MISCELLANEOUS PARTS
SW101 30002181 SWITCH TACT(4) AA AC
SW102 30002181 SWITCH TACT(4) AA AC
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11
32LW-92H
How to update the Technical Information
appeared on this Service Manual
1. Web site: https://www.vestelservice.com
2. Select: Technical Support
3. Login: 101278
4. Password: SHPII278
By this access you can consult the latest schematic dia-
gram or request the Parts Listing of a concrete Produc-
tion Date / Serial Number.
By this way it can be also consulted the issued Techni-
cal Reports (Service Bulletins).
REF No. PARTS DESCRIPTION SN CODE EX CODE
SW103 30002181 SWITCH TACT(4) AA AC
SW104 30002181 SWITCH TACT(4) AA AC
SW105 30002181 SWITCH TACT(4) AA AC
PL100 30001792 CONN HEADER 2P 7.5MM TOP WHT AA AC
PL101 30001795 CONN HEADER 3P 5/7.5MM TOP WHT AA AC
PL101 30002325 CNAS 2P/600 TB FLT W/C UL2468AWG24 AB AF
PL102 30001792 CONN HEADER 2P 7.5MM TOP WHT AA AC
PL102 30002335 CNAS 3P/600 PREAMP FLT W/C UL2468AWG24 AB AG
PL106 30001830 CONN HEADER 2P 2.5MM TOP BLUE SD AA AB
PL106 30002362 CNAS 830 FAV SHL W/4C+FER AF AR
PL107 30001839 CONN HEADER 3P 2.5MM TOP GREEN SD AA AC
PL108 30020926 CNAS 3P/900 FLT W/BLK C UL2468AWG24 AA AE
PL109 30016924 CNAS 6P/650 TB FLT W/C UL2468AWG24 AB AE
PL204 30010921 DOUBLE-DECK SCART SOCKET AD AM
PL206 30010039 CONN HEADER 8P 2.5MM TOP WHT AA AB
PL207 30001830 CONN HEADER 2P 2.5MM TOP BLUE SD AA AB
PL500 30001783 CONN HEADER 5P 2.5MM TOP BD AA AC
PL502 30001784 CONN HEADER 6P 2.5MM TOP BD AA AC
PL503 30001762 CONN HEADER 2P 2.5MM(9.7MM) TOP AA AC
PL504 30001770 CONN HEADER 3P 2.5MM TOP BD AA AC
PL602 30001792 CONN HEADER 2P 7.5MM TOP WHT AA AC
PL602 30016483 CNAS 2P/600 HRZ DIS W/C UL1672AWG24 AA AE
PL603 30001829 CONN HEADER 2P 2.5MM TOP WHT SD AA AB
PL603 30019083 CNAS 2P/600 SIS W/C+FER UL1007AWG24 AB AF
PL604 30001850 CONN HEADER 6P 2.5MM TOP WHT SD AA AC
PL703 30001839 CONN HEADER 3P 2.5MM TOP GREEN SD AA AC
PL708 30001762 CONN HEADER 2P 2.5MM(9.7MM) TOP AA AC
PL709 30001764 CONN HEADER 2P 2.5MM(9.7MM) TOP BLACK AA AC
PL711 30001836 CONN HEADER 3P 2.5MM TOP BLACK SD AA AB
PL901 30001855 SOCKET CRT SAFE NARROWNECK W/GND AD AM
PL902 30010039 CONN HEADER 8P 2.5MM TOP WHT AA AB
PL902 30027546 CNAS 5P/350 SHL+3P/350 SIS RGB W/DC+FER AD AM
PL903 30001850 CONN HEADER 6P 2.5MM TOP WHT SD AA AC
PL903 30027043 CNAS 6P-4P+1P/600 SIS W/3C+FER UL1007 AC AH
JK101 30001893 RCA JACK 1P YELLOW 28 FAV AB AG
JK102 30001891 RCA JACK 1P WHITE 28 FAV AB AG
JK103 30001892 RCA JACK 1P RED 28 FAV AB AG
JK108 30001902 JACK HEADPHONE STEREO WO/SW AC AH
A-A 30009848 CABL 1P/240 SIS AA AB
B-B 30009834 CABL 1P/60 SIS AA AB
J344 30001996 FIXED COIL 22UH Q40 K AA AB
MD101 30001669 PREAMPLIFIER TFMS1380 AD AM
S224 30000452 RES CF 1/4W 10R J AA AB
SG901 30000428 SPARK GAP 300V AB AG
SG902 30000428 SPARK GAP 300V AB AG
SG903 30000428 SPARK GAP 300V AB AG
SG904 30000428 SPARK GAP 300V AB AG
SG905 30021532 SPARK GAP 1500V AC AG
TH101 30001268 THERMISTOR 3P AD AM
. 30000285 CAP CER 1NF 100V KB AA AA
. 30006712 FERRITE BEAD 3.5X4.7X0.8 AA AB
. 30009833 CABL 1P/100 SIS AA AB
. 30009833 CABL 1P/100 SIS AA AB
. 30019101 CABL 1P/350 DIS UL1672AWG22 AA AB
. 30007728 CABLE 1P R2.6 50 W/CLIPS AA AC
. 30002238 CABL 2P/200 SPK DIS UL1672AWG24 AA AC
. 30002238 CABL 2P/200 SPK DIS UL1672AWG25 AA AC
F100 30001731 FUSE SAFE 2.5A 250V 5*20MM AA AC
. 35000136 FUSE HOLDER TK79-A (GRAY) AA AD
. 30001964 FERRITE BAR 5*8 AA AD
. 30000426 CAP EL 6.8UF 50V M (BPL) AA AE
. 30000426 CAP EL 6.8UF 50V M (BPL) AA AE
. 30018087 CNAS 2P/350 TRFPFC DIS W/C AA AE
. 30002368 CNAS 2P/650 AC MAINS W/C AB AF
. 20148818 IC 24C16 V073L4214A00000100412 AB AG
. 30012632 CNAS 2P/690 DIS W/C+FER UL2547 AWG24 AB AG
!
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REF No. PARTS DESCRIPTION SN CODE EX CODE
. 30012631 CNAS 2P/760 DIS W/BL C+FER UL2547 AWG24 AB AG
. 30001668 IC LM317T AC AH
. 30007758 DIODE BRIDGE GBU4M 4A/1000V 150A AC AK
. 30022450 SWITCH SAFE ON/OFF 8A/128A AC AK
. 30028092 SPEAKER 8R 15W 57*160 (improved) AE AN
. 30001947 TWEETER 8R 15W CLOSED AE AP
. 30001947 TWEETER 8R 15W CLOSED AE AP
. 30001386 TR MTP6N60E (PLASTIC) AE AP
. 30009005 IC 24C16 AF AQ
. 30024554 POWER CORD SAFE BSI 2.2M SHARP W/FLT-FUS AH AV
. 30018270 TRANSFORMER PFC SAFE 1,7A 43MH 170W AM AX
. 20150375 PR.IC.45-SHARP 1.2.67-L1 AS BD
. 20090585 CHASSIS FRAME 288X (AK37) AE AP
ARTWORK
. 20013018 LBL.BCK.CVR.ASSY (TV) (WO/UL) AA AB
. 20143026 R/C 1548 SHARP (EKO2GRAY/I) (GRAY/S) AM AY
. 20143252 LBL.BCK.CVR.SHA.EL.SHARP 32LW92H(AK45) AA AC
. 20143303 LBL.CART.BOX SHARP 32LW92H(AK45) AA AC
. 40014959 LOGO BADGE SHARP (W/P-SILVER BRUSH/H.ST) AA AE
. 50011720 LABEL HIGH END AB AG
. 50031294 CARTON BOX 324X 16:9 CR&W/TV EMPTY AA AA
. 50044952 I/B SHARP 32LW92H/28LW92H P/AK45/1548/EN AB AG
. 50044953 WARRANTY CARD SHARP (ENG) AA AE
. 50045014 CARTON BOX SHARP EL.SHARP 32LW92H AS BD
. 50046865 PAP.I/B QSG SHARP 28LW92H/32LW92H (ENG) AA AB
. 50046867 PAP.I/B CONNEC.G.SHAR.28LW92H/32LW92H(E) AA AC
COSMETICS
. 20093536 SNOW BOX BOTTOM 324XW AG AS
. 20093537 SNOW BOX TOP 324XW AG AS
. 20098659 SNOW BOX ASSY 324XW AM AX
. 20112873 BACK CVR.3241/42/43/44W W/SB EKO2GRAY(I) AV BG
. 20112875 FRONT 3242W W/H SILVER (P) AS BD
. 20140816 BUT.A.2442-2842-2842W-3242W(SILV-O.BLUE) AB AF
. 40012331 RUBBER PAD (RC 1542) AD AL
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12
32LW-92H
PRINTED BY: ON:
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, recording, or otherwise, without
prior written permission of the publisher.
Technical information and Production:
Vestel Electronik AS
Technical information re-issued:
SHARP ELECTRONICA ESPAÑA S.A.
Service Manual Group
Engineering Dept.
Polígono Industrial Can Sant Joan
08190 Sant Cugat del Vallès
Barcelona
Spain
Think Ecology, please use
RECYCLED PAPER

TABLE OF CONTENTS
1.INTRODUCTION.....................................................................................................................................1
2.TUNER.....................................................................................................................................................1
3.IF PART (TDA9885/86)............................................................................................................................1
4.VIDEO SWITCH TEA6415......................................................................................................................2
5.MULTI STANDARD SOUND PROCESSOR...........................................................................................2
6.SOUND OUTPUT STA E WITH TDA7269A..........................................................................................2
7.BERTICAL OUTPUT STA E WITH STV9379FA...................................................................................2
8.VIDEO OUTPUT AMPLIFIER TDA6108..................................................................................................2
9.POWER SUPPLY (SMPS)......................................................................................................................3
10.MICROCONTROLLER SDA55XX.........................................................................................................3
10.1. eneral Features............................................................................................................................3
10.2.External Crystal and Programmable Clock Speed..........................................................................3
10.3.Microcontroller Features.................................................................................................................3
10.4.Memory............................................................................................................................................3
10.5.Display Features.............................................................................................................................3
10.6.Acquisition Features........................................................................................................................4
10.7.Ports................................................................................................................................................4
11.CLASS AB STEREO HEADPHONE DRIVER TDA1308.......................................................................4
12.SAW FILTERS ......................................................................................................................................4
13.IC DESCRIPTIONS...............................................................................................................................5
13.1.LM317T...........................................................................................................................................5
13.1.1.Description................................................................................................................................5
13.1.2.Features....................................................................................................................................5
13.2.TDA1308T.......................................................................................................................................5
13.2.1. eneral Description..................................................................................................................5
13.2.2.Features....................................................................................................................................5
13.2.3.Pinning......................................................................................................................................6
13.3.MSP34X0 (MSP3410 )...............................................................................................................6
13.3.1.Description................................................................................................................................6
13.3.2.Features....................................................................................................................................7
13.3.3.Pin connections........................................................................................................................7
13.4.VDP313xY.......................................................................................................................................8
13.4.1.Introduction...............................................................................................................................8
13.4.2.Features....................................................................................................................................9
13.4.3.Pin Connections and short descriptions...................................................................................9
13.5.TEA6415C.....................................................................................................................................10
13.5.1. eneral Description................................................................................................................10
13.5.2.Features..................................................................................................................................10
13.5.3.Pinning....................................................................................................................................11
13.6.STV9379FA...................................................................................................................................11
13.6.1.Description..............................................................................................................................11
13.6.2.Features..................................................................................................................................11
13.6.3.Pinning....................................................................................................................................11
13.7.TDA7269A.....................................................................................................................................12
13.7.1.Description..............................................................................................................................12
13.7.2.Features..................................................................................................................................12
13.8.LM7800 (LM7805/LM7808)...........................................................................................................12
13.8.1.Description..............................................................................................................................12
13.8.2.Features..................................................................................................................................12
13.9.AT24C08.......................................................................................................................................12
13.9.1.Description..............................................................................................................................12
13.9.2.Features..................................................................................................................................12
13.9.3.Pin Configurations..................................................................................................................13
13.10.SDA5555.....................................................................................................................................13
13.10.1. eneral definition..................................................................................................................13
13.10.2.Features................................................................................................................................13
13.11.MC44608.....................................................................................................................................14
13.11.1.Description............................................................................................................................14
13.11.2. eneral Features..................................................................................................................15
13.11.3.Pin Connections....................................................................................................................15
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AK45 Service Manual 17/12/2007

13.12.TCET1102 ................................................................................................................................16
13.12.1.Description............................................................................................................................16
13.12.2.Applications..........................................................................................................................16
13.12.3.Features................................................................................................................................16
13.13.TDA9885T...................................................................................................................................16
13.13.1. eneral Description..............................................................................................................16
13.13.2.Features................................................................................................................................16
13.13.3.Pinning..................................................................................................................................17
13.14.PI5V330.......................................................................................................................................17
13.14.1. eneral Description..............................................................................................................17
14.AK45 CHASSIS PRODUCTION SERVICE MODE ADJUSTMENTS..................................................18
14.1.SERVICE MENU...........................................................................................................................18
14.2.ADJUST MENU.............................................................................................................................18
14.3.OPTIONS MENU...........................................................................................................................30
Option 0. Video Processor Crystal Indication....................................................................................30
Option 1. (0x01) Video Processor Decoder Mode Register..............................................................30
Option 2. (0x18) Video Processor Blanking Control..........................................................................30
Option 3. (0x19) Video Processor Cathode Drive Level....................................................................31
Option 4. ...........................................................................................................................................31
Option 5. CTI Avaliable, Mono AVL...................................................................................................31
Option 6. ...........................................................................................................................................31
Option 7. OPTIONHOTELACTIVE, PLL_VST, PIP Zoom Mode, PIP Position.................................31
Option 8. IF Frequency......................................................................................................................32
Option 9. Standard Available.............................................................................................................32
Option 10. Scart, Combfilter, Teletext, Language.............................................................................32
Option 11. PLL Tuner Control 1 Byte................................................................................................33
Option 12. PLL Tuner Control 2 Low Byte.........................................................................................33
Option 13. PLL Tuner Control 2 Mid Byte..........................................................................................34
Option 14. PLL Tuner Control 2 High Byte........................................................................................34
Option 15. PLL Tuner VHF LOW – VHF HI H Crossover Low Byte................................................34
Option 16. PLL Tuner VHF LOW – VHF HI H Crossover High Byte...............................................34
Option 17. PLL Tuner VHF HI H – UHF Crossover Low Byte.........................................................34
Option 18. PLL Tuner VHF HI H – UHF Crossover High Byte........................................................ 34
Option 19. PIP PLL Tuner Control 1 Byte..........................................................................................35
Option 20. PIP PLL Tuner Control 2 Low Byte..................................................................................35
Option 21. PIP PLL Tuner Control 2 Mid Byte...................................................................................35
Option 22. PIP PLL Tuner Control 2 High Byte.................................................................................35
Option 23. PIP PLL Tuner VHF LOW – VHF HI H Crossover Low Byte.........................................35
Option 24. PIP PLL Tuner VHF LOW – VHF HI H Crossover High Byte........................................ 35
Option 25. PIP PLL Tuner VHF HI H – UHF Crossover Low Byte.................................................. 36
Option 26. PIP PLL Tuner VHF HI H – UHF Crossover High Byte..................................................36
Option 27. Language Available 1.......................................................................................................36
Option 28. Language Available 2.......................................................................................................36
Option 29. Language Available 3 and Zoom Mode Available............................................................36
Option 30. Country.............................................................................................................................37
Option 31. Prescaler MSP FM (AVL=OFF).......................................................................................37
Option 32. Prescaler MSP NICAM (AVL=OFF).................................................................................37
Option 33. Prescaler MSP SCART (AVL=OFF)................................................................................38
Option 34. Prescaler MSP I2S (AVL=OFF).......................................................................................38
Option 35. Not used...........................................................................................................................38
Option 36. Not used...........................................................................................................................38
Option 37. Reserved for USA............................................................................................................38
Option 38. TV Teletext Mode Selection, Child Lock, Equalizer Country........................................... 38
Option 39. Personal Preferance Equalizer Band 1............................................................................39
Option 40. Personal Preferance Equalizer Band 2............................................................................39
Option 41. Personal Preferance Equalizer Band 3............................................................................39
Option 42. Personal Preferance Equalizer Band 4............................................................................39
Option 43. Personal Preferance Equalizer Band 5............................................................................39
Option 44. Sound Efect (Standard; Music; Speech; Jazz; Pp)..........................................................39
Option 45. Volume Offset Left...........................................................................................................39
Option 46. Volume Offset Right.........................................................................................................39
Option 47. Volume Offset Center......................................................................................................40
Option 48. Volume Offset Rear.........................................................................................................40
Option 49. Surround Delay................................................................................................................40
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AK45 Service Manual 17/12/2007

Option 50. FM Prescale.....................................................................................................................40
Option 51. NICAM Prescale..............................................................................................................40
Option 52. Scart Input Prescale.........................................................................................................40
Option 53. I2S Prescale.....................................................................................................................40
Option 54. Scart Output Prescale......................................................................................................40
Option 55. Speaker Setup.................................................................................................................41
Option 56. Audio Options Available Or Not.......................................................................................41
Option 57. Stereo Threshold.............................................................................................................41
Option 58. MSP Audio Flags.............................................................................................................42
Option 59. NICAM Threshold............................................................................................................42
Option 60. Power Delay Time............................................................................................................42
14.4.OPTION TABLE RECOMMENDED VALUES...............................................................................45
14.5.SCREEN ADJUSTMENT (FBT SCREEN)....................................................................................47
14.6. EOMETRY ADJUSTMENT........................................................................................................48
4:3 FORMATS...................................................................................................................................48
16:9 FORMATS.................................................................................................................................49
16.BLOCK DIA RAM...............................................................................................................................57
17.CIRCUIT DIA RAMS..........................................................................................................................58
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AK45 Service Manual 17/12/2007

1.INTRODUCTION
11AK45 is a 50Hz colour television capable of driving 24” + CRT sizes( beginning from 24” 16:9 up to
33”).
The chassis is capable of operation in PAL, SECAM, NTSC (playback) colour standards and multiple
transmission standards as B/ , D/K, I/I’, and L/L´.
Sound system output is supplying 2x10W (10%THD) for left and right outputs of 8ohm speakers.
TV supports FASTTEXT. It is possible to decode transmissions including high graphical data.
The chassis is equipped with three full EuroScarts, only one of them supports R B input, one
headphone output, one FAV input, one SVHS input (via SCART)
2.TUNER
The hardware and software of the TV is suitable for tuners, supplied by different companies, which are
selected from the Service Menu. These tuners can be combined VHF, UHF tuners suitable for CCIR
systems B/ , H, L, L´, I/I´, and D/K. The tuning is available through the digitally controlled I2C bus (PLL).
Below you will find info on one of the Tuners in use.
General description o UV1316:
The UV1316 tuner belongs to the UV 1300 family of tuners, which are designed to meet a wide range of
applications. It is a combined VHF, UHF tuner suitable for CCIR systems B/ , H, L, L’, I and I’. The low
IF output impedance has been designed for direct drive of a wide variety of SAW filters with sufficient
suppression of triple transient.
Features o UV1316:
1. Member of the UV1300 family small sized UHF/VHF tuners
2. Systems CCIR: B/ , H, L, L’, I and I’; OIRT: D/K
3. Digitally controlled (PLL) tuning via I2C-bus
4. Off-air channels, S-cable channels and Hyperband
5. World standardized mechanical dimensions and world standard pinning
6. Compact size
7. Complies to “CENELEC EN55020” and “EN55013”
Pinning:
1. ain control voltage (A C) : 4.0V, Max: 4.5V
2. Tuning voltage
3. I²C-bus address select : Max: 5.5V
4. I²C-bus serial clock : Min:-0.3V,
Max: 5.5V
5. I²C-bus serial data : Min:-0.3V,
Max: 5.5V
6. Not connected
7. PLL supply voltage : 5.0V, Min:
4.75V, Max: 5.5V
8. ADC input
9. Tuner supply voltage : 33V, Min: 30V, Max: 35V
10. Symmetrical IF output 1
11. Symmetrical IF output 2
3.IF PART (TDA9885/86)
The TDA9885 is an alignment-free single standard (without positive modulation) vision and sound IF signal
PLL.
The TDA9886 is an alignment-free multistandard (PAL, SECAM and NTSC) vision and sound IF signal PLL
Both devices can be used for TV, VTR, PC and set-top box applications.
The following figure shows the simplified block diagram of the integrated circuit.
The integrated circuit comprises the following functional blocks:
VIF amplifier, Tuner and VIF-A C, VIF-A C detector, Frequency Phase-Locked Loop (FPLL) detector, VCO
and divider, Digital acquisition help and AFC, Video demodulator and amplifier, Sound carrier trap, SIF
amplifier, SIF-A C detector, Single reference QSS mixer, AM demodulator, FM demodulator and acquisition
help, Audio amplifier and mute time constant, I2C-bus transceivers and MAD (module address), Internal
voltage stabilizer.
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AK45 Service Manual 17/12/2007

4.VIDEO SWITCH TEA6415
In case of three or more external sources are used, the video switch IC TEA6415 is used. The main
function of this device is to switch 8 video-input sources on the 6 outputs.
Each output can be switched on only one of each input. On each input an alignment of the lowest level
of the signal is made (bottom of sync. top for CVBS or black level for R B signals).
Each nominal gain between any input and output is 6.5dB.For D2MAC or Chroma signal the alignment
is switched off by forcing, with an external resistor bridge, 5VDC on the input. Each input can be used
as a normal input or as a MAC or Chroma input (with external Resistor Bridge). All the switching
possibilities are changed through the BUS. Driving 75ohm load needs an external resistor. It is possible
to have the same input connected to several outputs.
5.MULTI STANDARD SOUND PROCESSOR
The MSP 34x10 family of single-chip Multi-standard Sound Processors covers the sound processing
of all analog TV-Standards worldwide, as well as the NICAM digital sound standards. The full TV sound
processing, starting with analog sound IF signal-in, down to processed analog AF-out, is performed on a
single chip.
The DBX noise reduction, or alternatively, MICRONAS Noise Reduction (MNR) is performed alignment
free. Other processed standards are the Japanese FM-FM multiplex standard (EIA-J) and the FM
Stereo Radio standard.
6.SOUND OUTPUT STAGE WITH TDA7269A
The TDA7269A is class AB dual Audio power amplifier assembled in the Multi-watt package, specially
designed for high quality sound application as Hi-Fi music centers and stereo TV sets.
7.BERTICAL OUTPUT STAGE WITH STV9379FA
The IC STV9379FA is the vertical deflection booster circuit. Two supply voltages, +14V and –14V are
needed to scan the inputs VERT+ and VERT-, respectively. And a third supply voltage, +60V for the
flyback limiting are needed. The vertical deflection coil is connected in series between the output and
feedback to the input.
8.VIDEO OUTPUT AMPLIFIER TDA6108
The TDA6108Q includes three video output amplifiers is intended to drive the three cathodes of a colour
picture tube.
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AK45 Service Manual 17/12/2007

9.POWER SUPPLY (SMPS)
The DC voltages required at various parts of the chassis are provided by an SMPS transformer
controlled by the IC MC44608, which is designed for driving, controlling and protecting switching
transistor of SMPS. The transformer generates 145V for FBT input, +/-14V for audio amplifier, 5V and
3.3V stand by voltage and 8V, 12V and 5V supplies for other different parts of the chassis.
An optocoupler is used to control the regulation of line voltage and stand-by power consumption. There
is a regulation circuit in secondary side. This circuit produces a control voltage according to the changes
in 145V DC voltage, via an optocoupler (TCET1102 ) to pin3 of the IC.
During the switch on period of the transistor, energy is stored in the transformer. During the switch off
period energy is fed to the load via secondary winding. By varying switch-on time of the power transistor,
it controls each portion of energy transferred to the second side such that the output voltage remains
nearly independent of load variations.
10.MICROCONTROLLER SDA55XX
10.1.General Features
• Feature selection via special function register
• Simultaneous reception of TTX, VPS, PDC, and WSS (line 23)
• Supply Voltage 2.5 and 3.3 V
• ROM version package PSDIP52-2, PMQFP64-1
• Romless version package PMQFP100-2, PLCC84-2
10.2.External Crystal and Programmable Clock Speed
• Single external 6MHz crystal, all necessary clocks are generated internally
• CPU clock speed selectable via special function registers.
• Normal Mode 33.33 MHz CPU clock, Power Save mode 8.33 MHz
10.3.Microcontroller Features
• 8bit 8051 instruction set compatible CPU.
• 33.33-MHz internal clock (max.)
• 0.360 ms (min.) instruction cycle
• Two 16-bit timers
• Watchdog timer
• Capture compare timer for infrared remote control decoding
• Pulse width modulation unit (2 channels 14 bit, 6 channels 8 bit)
• ADC (4 channels, 8 bit)
• UART (rxd, txd)
10.4.Memory
• Non-multiplexed 8-bit data and 16 … 20-bit address bus (ROMless Version)
• Memory banking up to 1Mbyte (Romless version)
• Up to 128 Kilobyte on Chip Program ROM
• Eight 16-bit data pointer registers (DPTR)
• 256-bytes on-chip Processor Internal RAM (IRAM)
• 128bytes extended stack memory.
• Display RAM and TXT/VPS/PDC/WSS-Acquisition-Buffer directly accessible via MOVX
• UP to 16KByte on Chip Extended RAM (XRAM) consisting of;
- 1 Kilobyte on-chip ACQ-buffer-RAM (access via MOVX)
- 1 Kilobyte on-chip extended-RAM (XRAM, access via MOVX) for user software
- 3 Kilobyte Display Memory
10.5.Display Features
• ROM Character Set Supports all East and West European Languages in single device
• Mosaic raphic Character Set
• Parallel Display Attributes
• Single/Double Width/Height of Characters
• Variable Flash Rate
• Programmable Screen Size (25 Rows x 33...64 Columns)
• Flexible Character Matrixes (HxV) 12 x 9...16
• Up to 256 Dynamical Redefinable Characters in standard mode; 1024 Dynamical Redefinable
Characters in Enhanced Mode
• CLUT with up to 4096 colour combinations
• Up to 16 Colours per DRCS Character
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AK45 Service Manual 17/12/2007

• One out of Eight Colours for Foreground and Background Colours for 1-bit DRCS and ROM
Characters
• Shadowing
• Contrast Reduction
• Pixel by Pixel Shiftable Cursor With up to 4 Different Colours
• Support of Progressive Scan and 100 Hz.
• 3 X 4Bits R B-DACs On-Chip
• Free Programmable Pixel Clock from 10 MHz to 32MHz
• Pixel Clock Independent from CPU Clock
• Multinorm H/V-Display Synchronization in Master or Slave Mode
10.6.Acquisition Features
• Multi-standard Digital Data Slicer
• Parallel Multi-norm Slicing (TTX, VPS, WSS, CC, +)
• Four Different Framing Codes Available
• Data Caption only limited by available Memory
• Programmable VBI-buffer
• Full Channel Data Slicing Supported
• Fully Digital Signal Processing
• Noise Measurement and Controlled Noise Compensation
• Attenuation Measurement and Compensation
• roup Delay Measurement and Compensation
• Exact Decoding of Echo Disturbed Signals
10.7.Ports
• One 8-bit I/O-port with open drain output and optional I2C Bus emulation support (Port0)
• Two 8-bit multifunction I/O-ports (Port1, Port3)
• One 4-bit port working as digital or analogue inputs for the ADC (Port2)
• One 2-bit I/O port with secondary function (P4.2, 4.3, 4.7)
• One 4-bit I/O-port with secondary function (P4.0, 4.1, 4.4) (Not available in P-SDIP 52)
11.CLASS AB STEREO HEADPHONE DRIVER TDA1308
The TDA1308 is an integrated class AB stereo headphone driver contained in a DIP8 plastic package.
The device is fabricated in a 1 mm CMOS process and has been primarily developed for portable digital
audio applications.
12.SAW FILTERS
K3953M:
Standard
B/ , D/K, I, L/L’
Features
TV IF filter with Nyquist slopes at 33,90 MHz and 38,90 MHz
Constant group delay
Suitable for CENELEC EN 55020
Terminals
Tinned CuFe alloy
Pin con iguration
1 Input
2 Input - ground
3 Chip carrier - ground
4 Output
5 Output
K3958M:
Standard
B/ , D/K, I, L/L’
Features
TV IF filter with Nyquist slopes at 33.90 MHz and 38.90 MHz
Constant group delay
Terminal and Pin configuration are the same with K3953M
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AK45 Service Manual 17/12/2007