SD-SH111 (serv.man8). Adjustment - Sharp Audio Service Manual (repair manual). Page 2

Read Sharp SD-SH111 (serv.man8) Service Manual online

– 17 –
SD-SH111
TUNER SECTION
Frequency
Display
Adjusting
Parts
Instrument
Connection
98 MHz
98 MHz
VR1
Input: FM Antenna
(26dB)
Terminal
(EFM)
Output: Headphones
   Terminal
fL: Low-range frequency
fC: Middle-range frequency
fH: High-range frequency
• FM Mute Level
Signal generator: 400 Hz, 22.5 kHz, FM modulated
Turn the VR1 to set the volume to 26dB.
TEST MODE
When the tuner test mode is set, the initial setting of frequencies
is stored in the preset memory as shown in Table 1. For
details, refer to "8. Tuner test" on page 23.
The frequencies registered by the user will be changed when
the above setting is performed.
Table 1 Memory setting
Electronic 
Voltmeter
GND
FM Signal
Oscillator
Set
Headphones
Terminal
FM Antenna
Terminal
Figure 17-1
Figure 17-2
+
Set
AC 120 V
BIA110
Speaker
Output
Electronic
Voltmeter
VR : 0
Input : AUX
VRA101
R-CH
Output Offset Adjust
VRA100
L-CH
Output Offset Adjust
 1-bit amplifier's output offset voltage adjustment
Adjust VRA100 and VRA101 so that the DC voltage between
speaker terminals + and - is set to 0 
±
 5 mV.
Figure 17-3
Figure 17-4
 
DVD/CD SECTION
  Adjustment
Since this DVD/CD system incorporates the following
automatic adjustment functions, readjustment is not needed
when replacing the pickup. Therefore, different PWBs and
pickups can be combined freely.
Each time a disc is changed, these adjustments are
performed automatically. Therefore, playback of each disc
can be performed under optimum conditions.
VR1
TUNER UNIT
Preset
Memory
P1
87.50 MHz
P6
530 kHz
P2
108.00 MHz
P7
1,720 kHz
P3
90.00 MHz
P8
600 kHz
P4
106.00 MHz
P9
1,400 kHz
P5
98.00 MHz
P10
990 kHz
Frequency
FM
Preset
Memory
Frequency
AM
Page of 11
Display

Click on the first or last page to see other SD-SH111 (serv.man8) service manuals if exist.