Cdr1049u Argentina
Short Description
Download Cdr1049u Argentina...
Description
STEREO TUNER AUX CD SYSTEM
CD38NC AM/FM (ARGENTINA)
SERVICE SERVICE MANUAL MANUA L
CONTENTS
PERFORMANCE SPECIFIC SPECIFICATIO ATION.......................................................................................... N.......................................................................................... 2-4 TUNER ADJUSTM ADJUSTMENTS............................................................................................................. ENTS............................................................................................................. 5 SCHEMATIC DIAGRA DIAGRAM............................................................................................................. M............................................................................................................. 6 P.C.B. LAYOUT (W /COMPONENT) /COMPONENT)...... ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ............ ...... ... 7-8 WIRING DIAGRA DIAGRAM M .................................................................................................................... 9
-1-
STEREO TUNER AUX CD SYSTEM
CD38NC AM/FM (ARGENTINA)
PERFORMANCE SPECIFICATION
GENERAL TEST CONDITION 1
Power Supply
AC: 220V/50Hz, DC: 12V
2
Output Load
8 ohm/ch
3
Reference Output
4
Tuner Input Signal Source
5
Standard Modulation
50 mW/ch 50 ohm Test Loop for AM 75 ohm Dummy for FM 30%, 1kHz for AM 22.5kHz Dev. 1kHz for FM 75kHz Dev. 1kHz for FM-MPX (Pilot : 10%)
Note:
Specification subject to change without notice.
AM SECTION No.
Test Item
Unit
Normal
Limit
1.
Tuning Range
kHz
522~1638
5229 163827
2.
I.F.
kHz
455
5
56
62
56
62
1404kHz
56
62
603kHz
62
68
62
68
62
68
603kHz 3.
4.
Max. Sensitivity
Usable Sensitivity (20dB S/N)
999kHz
999kHz
dB/M
dB/M
1404kHz
Test Condition
5.
I.F. Rejection
603kHz
dB
52
46
6.
Image Rejection
1404kHz
dB
48
42
7.
-6dB Band width
999kHz
kHz
7
5~10
8.
ACA
999kHz
dB
22
16
9.
AGC Figure Merit
999kHz
dB
56
46
10.
Distortion
1
2
2
4
11.
Tweet, 2nd & 3rd,
%
4
8
12.
Modulation Hum
dB
42
36
100mV, 30%Mod.
13.
Min. Hum & Noise
mV
0.8
1.5
Min.Volume
14.
-6dB Audio Fidelity
Hz
60~2200
80~2000
10kHz
5mV, 30%Mod. 100mV, 80%Mod.
%
-2-
100mV, 30%Mod. Reference Output 5mV, 30%Mod.
Reference Output
STEREO TUNER AUX CD SYSTEM
CD38NC AM/FM (ARGENTINA)
PERFORMANCE SPECIFICATION
FM SECTION No.
Test Item
Unit
Normal
Limit
1.
Tuning Range
MHz
87~108.5
0.5
2.
I.F.
MHz
10.7
0.2
16
22
16
22
106MHz
16
22
90MHz
22
28
22
28
22
28
90MHz 3.
4.
Max. Sensitivity
98MHz
30dB Quieting Sensitivity
98MHz
dB
dB
106MHz
Test Condition
5.
I.F. Rejection
90MHz
dB
>60
50
6.
Image Rejection
106MHz
dB
22
16
7.
3dB Limit Sensitivity
98MHz
dB
20
26
8.
AM Suppression
98MHz
dB
42
36
9.
AFC Hold Range
98MHz
kHz
400
300~600
10.
Distortion
1
2
2
4
11.
Overload Break-up
dB
100
90
12.
Modulation Hum
dB
46
40
1mV, 22.5kHz Dev.
13.
Min. Hum & Noise
mV
0.8
1.5
Min.Volume
14.
-3dB Audio Fidelity
Hz
60~12,000
80~10,000
Unit
Normal
Limit
1mV, 22.5kHz Dev. 1mV, 75kHz Dev. 98MHz
%
Reference Output
50us Pre-Emphasis Reference Output
FM-MPX SECTION No.
Test Item
1.
Stereo Indicator Sensitivity
dB
22
28
2.
Channel Separation (1kHz)
dB
30
26
-3-
Test Condition
w/19kHz Filter
STEREO TUNER AUX CD SYSTEM
CD38NC AM/FM (ARGENTINA)
PERFORMANCE SPECIFICATION
CD SECTION No.
Test Item
Unit
Normal
Limit
Test Condition
dB
1
3
1
3
A-BEX,TCD-784, No.2 vs 4
1
3
A-BEX,TCD-784, No.2 vs 5
1.
Channel Balance 1kHz, L/R ch.
2.
Frequency Response
3.
S/N Ratio
dB
62
56
A-BEX,TCD-784, No.2 vs 7
4.
Distortion
%
0.5
1.5
A-BEX,TCD-784, No.2
5.
Channel Seperation
dB
48
40
A-BEX,TCD-784, No.8 vs 10
6.
Interruption
µm
900
600
PHILIPS, SBC444A
7.
Black Dots
µm
800
600
PHILIPS, SBC444A
8.
Finger Print
µm
75
65
PHILIPS, SBC444A
9.
Scratch
µm
600
400
A-BEX,TCD-721R
10.
Vertical Deviation
µm
1000
780
A-BEX,TCD-731RA
11.
Eccentricity
µm
210
140
A-BEX,TCD-713/712
12.
Hum & Noise
0.8
1.5
3
5
Normal
Limit
1
3
0
0
3
-10dB, 1kHz
0
3
1KHz 150mV
100Hz 10kHz
1kHz
Min. Volume Max.Volume
dB
mV
A-BEX,TCD-784, No.2
A-BEX,TCD-784, No.7
AUDIO SECTION No.
Test Item
Unit
AM 1.
Level Matching (Reference: FM)
FM CD
dB
AUX
Test Condition
60% Mod. 74dB/M 45kHz Dev. 1mV
AM: 80% Mod. 74dB/M 2.
10%THD Output Power
W
2.0+2.0
1.8+1.8
FM: 75kHz Dev. 1mV AUX: 1KHz, 500mV CD: 0dB, 1kHz
-4-
STEREO TUNER AUX CD SYSTEM
CD38NC AM/FM (ARGENTINA)
TUNER ADJUSTMENTS For adjustments use a plastic screwdriver. Adjust the intermediate frequency to the frequency of ceramic filter.
AM IF Input Connections
Output Connections
Frequency
Adjustment
Sweep Generator to Test Loop & Closely to L104
Alignment Oscilloscope to TP3
455kHz
T102
Input Connections
Output Connections
Frequency
Adjustment
Sweep Generator Terminal Connect to TP2
Alignment Oscilloscope to TP3
10.7MHz
T103
Frequency
Adjustment
522kHz
T101
1638kHz
TC104
603kHz
L104
1404kHz
TC103
Frequency
Adjustment
87MHz
L103
108.5MHz
TC102
90MHz
L102
106MHz
TC101
Output Indication
Balance & Max.
FM IF Output Indication
Balance & Max.
AM BAND Step
1 2 3 4 5
Adjustment Circuit
Tuning Coverage
Connections Input
Output
Sweep Generator to Test Loop
Tracking
Alignment Oscilloscope to TP3
Output Indication
Maximum
Repeat Adjustments From Step 1 to Step 4
FM BAND Step
1 2 3 4 5
Adjustment Circuit
Tuning Coverage Tracking
Connections Input
Sweep Generator Terminal Connect to TP1
Output
Alignment Oscilloscope to TP3
Repeat Adjustments From Step 1 to Step 4
-5-
Output Indication
Maximum
STEREO TUNER AUX CD SYSTEM
CD38NC AM/FM (ARGENTINA)
P.C.B. LAYOUT (W/COMPONENT)
-7-
STEREO TUNER AUX CD SYSTEM
CD38NC AM/FM (ARGENTINA)
P.C.B. LAYOUT (W/COMPONENT)
-8-
STEREO TUNER AUX CD SYSTEM
CD38NC AM/FM (ARGENTINA)
WIRING DIAGRAM
-9-
View more...
Comments
