Audiovox DM8900-00, Руководство по обслуживанию, Страница: 3 / 19

4
Power Supply : AC - DC Adaptor 100V: 6V DC 60Hz Battery:3V (AA x 2)
120V: 6V DC 60Hz
230V: 6V DC 50Hz
Lineout Load : 47Kohm
Headphone Output : 16ohm or 32ohm
Reference Output : 5mW
Input Signal Source : CBS SONY YED7 (PTD-001) SONY
PHILIPS SBC 444A (TDC-725, TDC-731, TDC-712) A.Bex
GENERAL TEST CONDITION
PERFROMANCE SPECIFICATIONS
UNIT NOMINAL LIMIT
1. 10% THD Output Power (1kHz, 0dB) (16 or 32ohm) mW - 15
*2. Signal to Noise Ratio (1kHz) dB 76 70
*3. Channel Separation (1kHz, 0dB) dB 55 45
*4. Total Harmonic Distortion 1kHz % 0.3 1
5. Bass Boost Measured Signal is 0dB at 100Hz, dB 8 +3-2
Where Output Power is 5mW & Down by 20dB at 32ohm Loading dB
6. Frequency response (1kHz, 0dB) 100Hz dB ±1 ±3
10kHz dB ±1 ±3
20kHz dB ±3 ±6
*with External A Filter
LINE OUT
UNIT NOMINAL LIMIT
1. Output (1kHz, 0dB) 47kohm Vrms 0.6 0.5
*2. Signal to Noise Ratio (1kHz, 0dB) dB 82 76
*3. Channel Separation 1kHz dB 70 60
*4. Harmonic Distortion 1kHz % 0.2 0.3
5. Dynamic Range dB 76 70
6. De-emphasis 16kHz Signal with Emphasis Recording (-9.04dB as 0dB) dB 0 ±1
5kHz Sgnal with Emphasis Recording (-4.53dB as 0dB)
7. Channel Balance (1kHz, 0dB) dB 0.5 1
8. Frequency Response (1kHz, 0dB) 100Hz dB ±1 ±3
10kHz dB ±1 ±3
20kHz dB ±3 ±6
PLAYABILITY TESTING
UNIT
1. Interruption (PHILIPS SBC-444A) mm
2. Black Dot (PHILIPS SBC-444A) mm
3. Finger Print (A. Bex TCD-725) µm
4. Vertical (A. Bex TDC-731A) mm
5. Eccentricity (A. Bex TDC-732) µm 150
0.6
0.6
65
0.5
TEST ITEMS
EARPHONE OUTPUT
TEST ITEMS
TEST ITEMS LIMIT