1
AK - 44
CHASSIS
PAL
B/G, I
/ SECAM
L/L’, B/G, D/K
SYSTEM COLOUR TELEVISION
SERVICE MANUAL
This document has been published to
be used for after sales service only.
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
TABLE OF CONTENTS ....................................................................................................... 3
INTRODUCTION .................................................................................................................. 6
CIRCUIT DESCRIPTIONS ................................................................................................... 6
INTEGRATED CIRCUIT DESCRIPTIONS ....................................................................... 13
BLOCK DIAGRAM ................................................................................................................ 22
SERVICE MODE ADJUSTMENTS ...................................................................................... 23
HOTEL MODE FUNCTIONS ................................................................................................ 30
CIRCUIT DIAGRAMS ..................................................................................................... 31
HOW TO UPDATE THE TECHNICAL INFORMATION ...................................................... 41
SHARP CORPORATION
SE
00
AK44CHA00
Issued: 9
th
March 2004
CHASSIS
AK-44
Содержание 21LF-90N
Страница 6: ...6 21LF 90N CHASSIS LAYOUT Mother Unit CRT Unit Headphone Unit ...
Страница 44: ...32 AK 44 CHASSIS 18 2 Schematic Diagram of Video Circuit 1 I H G F E D C B A 2 3 4 5 6 7 Page 33 ...
Страница 45: ...33 AK 44 CHASSIS 8 9 10 11 12 13 14 I H G F E D C B A Page 32 18 2 Schematic Diagram of Video Circuit ...
Страница 46: ...34 AK 44 CHASSIS 1 I H G F E D C B A 2 3 4 5 6 7 Page 35 18 3 Schematic Diagram of SMPS Circuit ...
Страница 47: ...35 AK 44 CHASSIS 8 9 10 11 12 13 14 I H G F E D C B A Page 34 18 3 Schematic Diagram of SMPS Circuit ...
Страница 48: ...36 AK 44 CHASSIS 1 I H G F E D C B A 2 3 4 5 6 7 18 4 Schematic Diagram of Audio Circuit ...
Страница 49: ...37 AK 44 CHASSIS 8 9 10 11 12 13 14 I H G F E D C B A 18 5 Schematic Diagram of Deflection Circuit ...
Страница 50: ...38 AK 44 CHASSIS 1 I H G F E D C B A 2 3 4 5 6 7 Page 39 18 6 Schematic Diagram of Scart AV Front Circuits ...
Страница 52: ...40 AK 44 CHASSIS 1 I H G F E D C B A 2 3 4 5 6 7 18 7 Schematic Diagram of CRT Socket Circuit ...
Страница 55: ...43 AK 44 CHASSIS Notes ...