GX-CH170X/CH170Z
No. S6631GXCH170Z
SERVICE MANUAL
CONTENTS
Page
SPECIFICATIONS ............................................................................................................................................................. 2
VOLTAGE SELECTION (GX-CH170Z ONLY)................................................................................................................... 2
NAMES OF PARTS ........................................................................................................................................................... 3
REMOTE CONTROL ......................................................................................................................................................... 4
DISASSEMBLY.................................................................................................................................................................. 5
REMOVING AND REINSTALLING THE MAIN PARTS..................................................................................................... 7
FITTING OF DIAL POINTER ............................................................................................................................................. 8
ADJUSTMENT ................................................................................................................................................................... 9
TROUBLESHOOTING (CHANGER/CD SECTION) ........................................................................................................ 11
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 16
TYPES OF TRANSISTOR AND LED............................................................................................................................... 16
BLOCK DIAGRAM ........................................................................................................................................................... 17
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 20
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 35
FUNCTION TABLE OF IC................................................................................................................................................ 36
LCD SEGMENT ............................................................................................................................................................... 37
PARTS GUIDE/EXPLODED VIEW
DIFFERENCE BETWEEN GX-CH170X AND GX-CH170Z
GX-CH170X
GX-CH170Z
TUNER 2 BAND 4 BAND
FINE TUNING
FM STEREO INDICATOR
POWER SOURCE AC 220-240 V,50 Hz AC 110-127/220-240 V,
50/60 Hz
GX-CH170X
GX-CH170Z
• 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.
SHARP CORPORATION
Illustration: GX-CH170Z
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