XL-70/70C
CONTENTS
Page
IMPORTANT SERVICE NOTES (FOR U.S.A. ONLY)...................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................ 2
NAMES OF PARTS .......................................................................................................................................................... 3
OPERATION MANUAL ..................................................................................................................................................... 5
DISASSEMBLY................................................................................................................................................................. 8
REMOVING AND REINSTALLING THE MAIN PARTS.................................................................................................. 10
ADJUSTMENT ................................................................................................................................................................ 12
TEST MODE ................................................................................................................................................................... 13
ERROR LIST .................................................................................................................................................................. 17
NOTES ON SCHEMATIC DIAGRAM ............................................................................................................................. 18
TYPES OF TRANSISTOR AND LED.............................................................................................................................. 18
WAVEFORMS OF CD CIRCUIT..................................................................................................................................... 19
BLOCK DIAGRAM .......................................................................................................................................................... 20
SCHEMATIC DIAGRAM ................................................................................................................................................. 24
WIRING SIDE OF P.W.BOARD ...................................................................................................................................... 30
TROUBLESHOOTING .................................................................................................................................................... 34
FUNCTION TABLE OF IC .............................................................................................................................................. 40
LCD SEGMENT .............................................................................................................................................................. 48
PARTS GUIDE/EXPLODED VIEW
PACKING OF THE SET (FOR U.S.A. ONLY)
SERVICE MANUAL
SHARP CORPORATION
No. S5037XL-70///
• In the interests of user-safety the set should be restored to its original
condition and only parts identical to those specified should be used.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
XL-70
XL-70 Micro Component System consisting of XL-70 (main unit) and
CP-XL70U (speaker system).
XL-70C Micro Component System consisting of XL-70C (main unit)
and CP-XL70U (speaker system).
XL-70C
MODEL
MICRO COMPONENT SYSTEM
MODEL
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