Sharp gx ch 170 x service manual

Page 1

GX-CH170X/CH17OZ

SHARP SERVICE MANUAL

Illustration: GX-CH17OZ

Iflfigffi

No. $6631GXCH17OZ

GX-CH170X
GX-CH17OZ

- In the interests of user-safety the set should be restored to its
original condition and only parts identical 10 those specified

DIGITAL AUDIO should be used.

/ CONTENTS

SPECIFICATIONS ............................................
VOLTAGE SELECTION (GX-CH17OZ ONLY) ..
NAMES OF PARTS
REMOTE CONTROL .
DISASSEMBLY ..........
REMOVING AND REINSTALLING THE MAIN PARTS...
FITTING OF DIAL POINTER
ADJUSTMENT .........................
TROUBLESHOOTING (CHANGER/CD SECTION) .
NOTES ON SCHEMATIC DIAGRAM ......................
TYPES OF TRANSISTOR AND LED..
BLOCK DIAGRAM ..............................
SCHEMATIC DIAGRAM /W|R|NG SIDE OF P.W.BOARD
WAVEFORMS OF CD CIRCUIT..
FUNCTION TABLE OF IC ............
LCD SEGMENT ............................................................................................................................................................... 37
PARTS GUIDE/EXPLODED VIEW

DIFFERENCE BETWEEN GX-CH170X AND GX-CH17OZ

GX-CH170X GX-CH17DZ
TUNER 2 BAND 4 BAND
FINE TUNING X O
FM STEREO INDICATOR X 0
POWER SOURCE AC 220-240 v,5o Hz Ac 110-127/220-240 v,
50/60 Hz

SHARP CORPORATION

Page 2

GX-CH170X/CH17OZ

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.

0 General
Power source:
(GX-CH170X)

Power source:
(GX-CH17OZ)

Power consumption:

Output power:

Output terminal:

Dimensions:

Weight:

SPECIFICATIONS

AC 220-240 V, 50 Hz

DC 12 V [ "D" size (UM/SUM-1,
R20 or HP-2) battery x 8]

AC 110»127/220-240 V, 50/60 HZ
DC 12 V [ D" size (UM/SUM-1,
R20 or HP-2) battery x 8]

55 W

PMPO; 60 W (total)

MPO (Max.); 24 w (12 w + 12 W)
(AC operation)
RMS;10W(5W+5W)

(DC operation, 10 0/n T.H.D.)
Headphones; 16 - 50 ohms
(recommended; 32 ohms)

Width; 290 mm (11-1/2")

Height; 260 mm (10-1/4")

Depth; 277 mm (10-15/16")

4.3 kg (9.5 lbs.) without batteries

0 Compact disc player

Type:
Signal readout:

Audio channels:
D/A converter:
Decoder:

Filter:

Wow and flutter:

QACCBOOO4AW00

Twin CD mechanism
Non-contact, 3-beam semi-
conductor laser pickup

2

1-bit D/A converter

16-bit linear quantization

4-tims oversampling digital filter
Unmeasurable

(less than 0.001% W. peak)

0 Radio
Frequency range:
(GX-CH170X)
Frequency range:
(GX-CH170Z)

0 Tape recorder
Frequency response:
Signal/noise ratio:

Wow and flitter:
Motor:

Bias system:
Erase system:

0 Speaker section
Type:
Speakers:

Maximum input power:

Impedance:
Dimensions:

Weight:

FM; 87.6 -108 MHz

AM; 530 - 1,702 kHz
FM; 88 - 108 MHz

MW; 526.5 - 1,606.5 kHZ
SW1; 2.3 - 7.3 MHZ
SW2; 7.3 - 22 MHZ

50 - 14,000 HZ (Normal tape)

50 dB (TAPE 1, recording/
playback)

55 dB (TAPE 2, playback)

0.25 0/o (WRMS)

DC 12 V electric governor

AC bias

AC erase

2»way 4-speaker bass-reflex type
10 cm (4") woofer x 2

Tweeter x 2

8 W

3.2 ohms

Width; 190 mm (7-1/2")

Height; 260 mm (10-1/4")

Depth; 183 mm (7-1/4")

1.3 kg (2.9 lbs.) leach

prior notice.

Specifications for this model are subject to change without

VOLTAGE SELECTION (GX-CH17OZ ONLY)

Before operating the unit on mains, check the preset voltage.
It the voltage is different from your local voltage. Slide the AC
power supply socket cover by slightly loosing the screw to the
visible indication of the side of your local voltage.

QACCE0007AW00

I tame:

92LC6RD577B

92LPLUG027

92LPLUG155A

Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR