WQ-790W
CONTENTS
Page
SPECIFICATIONS ............................................................................................................................................................... 1
VOLTAGE SELECTION ....................................................................................................................................................... 2
AC POWER SUPPLY CORD AND PLUG ........................................................................................................................... 2
FITTING OF DIAL POINTER ............................................................................................................................................... 2
NAMES OF PARTS ............................................................................................................................................................. 3
DISASSEMBLY .................................................................................................................................................................... 4
ADJUSTMENT ..................................................................................................................................................................... 5
NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 6
VOLTAGE ............................................................................................................................................................................ 7
TYPES OF TRANSISTOR AND LED ................................................................................................................................... 7
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ................................................................................................. 8
PARTS GUIDE / EXPLODED VIEW
WQ-790W
SERVICE MANUAL
SHARP CORPORATION
No. S7852WQ790W//
• 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.
SPECIFICATIONS
Specifications for this model are subject to change without
prior notice.
●
General
Power source:
AC 110-127 V/220-240 V,
50/60 Hz
DC 15 V
[
"D" size (UM/SUM-
1, R20 or HP-2) battery
×
10
]
Power consumption:
20 W
Output power:
PMPO; 120 W (60 W + 60 W)
(AC operation)
MPO (Max.); 30 W
(15 W + 15 W) (AC operation)
RMS; 15 W (7.5 W + 7.5 W)
(DC operation, 10 % T.H.D.)
Speakers:
12 cm (4-3/4") free-edge
speaker
×
2
5 cm (2") surround speaker
×
2
Input terminal:
MIC 1/2; 1 mV/600 ohms
CD/LINE; 350 mV/47 kohms
Output terminal:
Headphones; 16-50 ohms
(recommended; 32 ohms)
Dimensions:
Width; 630 mm (24-13/16")
Height; 205 mm (8-1/8")
Depth; 215 mm (8-1/2")
Weight:
5.3 kg (11.7 lbs.) without bat-
teries
●
Radio section
Frequency range:
FM; 88 - 108 MHz
SW1; 2.3 - 7.3 MHz
SW2; 7.3 - 22 MHz
MW; 526.5 - 1,606.5 kHz
●
Tape recorder section
Frequency response:
60 - 12,000 Hz (Normal tape)
Signal/noise ratio:
40 dB (TAPE 1, recording/playback)
55 dB (TAPE 2, playback)
Wow and flutter:
0.15 % (WRMS)
Motor:
DC 15 V electric governor
Bias system:
AC bias
Erase system:
Magnet erase
