Sharp CD-PC671H Service Manual page 12

CD-PC671H/PC651H
TUNER SECTION
fL: Low-range frequency
fH: High-renge frequency
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage Frequency
IF 450 kHz
Band —
Coverage
Tracking 990 kHz
*1. Input: Antenna, Output: TP302
*2. Input: Antenna, Output: TP301
CNP303
TP302
R357
CD ERROR CODE DESCRIPTION
When a malfunction occurs during CD operation, an error
code will be displayed to identify the function in CD operation
which failed.
Error
0001
0101
0105
0201
0203
0304
0305
0307
Frequency Setting/
Instrument
Display Adjusting
Connection
Parts
1,620 kHz T351 *1
522 kHz (fL): T306 *2
1.1 ± 0.1 V
990 kHz (fH): T302 *1
VR351
T351
AM IF
FM MUTE
LEVEL
Figure 12 ADJUSTMENT POINTS
State Code
Cannot detect pickup-in SW
Tray close operation error
Tray close operation error
Tray open operation error
Tray open operation error
Disc skip operation error
Disc skip operation error
Disc skip operation error
• FM
Notes:
1: Description of the "FM IF Adjustment" is not carried on this
Manual. It is because the IF coil in the FM front end section
has been best adjusted in the factory so that its further
adjustment is not needed at the field. When replacing the
FM front end assembly, no adjustment is needed either.
2: The parts in the FM front end section are prepared in a
complete unit, so you can't obtain each part individually
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Frequency
98.00 MHz
(25 dBµV)
TUNER PWB
TP301
R336
FE301
T302
T306
AM BAND
COVERAGE
– 12 –
Adjusting
Frequency
Display Parts
98.00 MHz VR351
SO301
FM ANTENNA
TERMINAL
CNP301
AM LOOP
AM
ANTENNA
TRACKING
TERMINAL
Instrument
Connection
Input: Antenna
Output: Speaker
Terminal