Sharp XL-DV60 Service Manual

XL-DV60
2 – 1
XL-DV60
Service Manual
CHAPTER 2. ADJUSTMENTS
[1] ADJUSTMENT
1. TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
• FM Detection
Signal generator: 10.7 MHz FM sweep generator
• FM RF
Signal generator: 1 kHz, 75 kHz dev., FM modulated
2. 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 com-
bined freely.
Each time a disc is changed, these adjustments are performed
automatically. Therefore, playback of each disc can be performed
under optimum conditions.
Test Stage Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
IF 450 kHz 1,602 kHz T351 *1
AM Band
Coverage
— 530 kHz (fL): T306
1.1 ± 0.1 V
*2
AM Tracking 990 kHz 990 kHz T302 *3
*1. Input: IC303 21Pin Output: IC303 23Pin
*2. Input: Input is not connected Output: TP-VT(TP301)
*3. Input: Antenna Output:IC303 23Pin
Frequency Display Check
Point
Instrument
Connection
87.5 MHz 87.5 MHz 3.4V ± 1.0V TP301
108 MHz 108 MHz 7.8V ± 1.0V TP301
Frequency Display Adjusting
Parts
Instrument
Connection
98.00 MHz
(30 dBµV)
98.00 MHz VR351 Input: Antenna
Output: Speaker Terminal
Test
Stage
Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
FM IF 10.7 MHz 98.00 MHz T304 Input: Pin 1 of
IC301
Output: Pin 18
of IC303
Test
Stage
Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
FM OSC. — 87.50 MHz (fL): L303
3.4 ± 0.1 V
*1
FM RF 98.00 MHz
(10 ~ 20dB)
98.00 MHz L302 *1
*1. Input: Antenna Output: 18 Pin of IC303
Figure 1 ADJUSTMENT POINTS
CNP301
L302
T302
AM
Tracking fL
IC301
FM IF
T304
FM OSC.
L303
AM BAND
COVERAGE fL
T306
T351
AM IF
FM MUTE
LEVEL
VR351
IC303
IC302
20
C393
TP301
TP302
R350
R357
R356
FM RF
TUNER PWB-A2
1
18

Sharp XL-DV60 Specifications

General

Brand	Sharp
Model	XL-DV60
Category	Stereo System
Language	English