Toshiba FT-8901A, Service Manual

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HANDSET UNIT
RECEIVER Unit Nominal Limit
1. Sensitivity 12 dB SINAD (with CCITT Filter) dBm
−
115 <
−
107
2. AF Frequency Response (Ref: 1 kHz at 5 kHz Dev)
0.3 kHz dB +7.0 +3.0 ~ +11.0
3.0 kHz dB
−
10.0
−
14.0 ~
−
6.0
3. Audio Output Level (5 kHz Dev) VOL. HIGH dBV +15 LOW
+
15
±
3
VOL. MEDIUM dBV +8 LOW
+
8
±
3
VOL. LOW dBV
−
27.0
−
30.0 ~
−
24.0
4. Distortion at 1 mV RF Input (VOL. NOR) % 1.5 < 5.0
5. S/N ratio at 1 mV RF Input (with CCITT Filter, VOL. NOR)
dB 65 60 <
6. Selectivity (NQ 20dB) Bandwidth
−
kHz 15 10 <
Ban kHz 15 10 <
7. Image Rejection Ratio (SINAD 12 dB with CCITT Filter)
1st Image (f0
+
10.555 MHz
×
2) dB 30 20 <
2nd Image (f0
+
455 KHz
×
2) dB 55 30 <
8. Ringer Level at 30 cm from Speaker (Bell input)
2 TONE VOL HI dBSPL 87 75 <
2 TONE VOL LO dBSPL 74 57 <
3 TONE VOL HI dBSPL 79 60 <
3 TONE VOL LO dBSPL 67 47 <
TRANSMITTER
1. RF Power (50
Ω
Load) dBm
−
5.0
−
8.0 ~
−
2.0
2. Modulation Sensitivity Mic Input mV 9.0 6.3 ~ 12.7
3. AF Frequency Response (Ref:1kHz)
0.3 kHz (Input) dB
−
1.5
−
5.5 ~ +2.5
3.0 kHz (Input) dB
−
2.5
−
6.5 ~ +1.5
4. TX Frequency Tolerance Hz 0 <
±
2500
5. Code Deviation kHz 8.0 < 12.0
6. Distortion % 1.5 < 5.0
7. S/N Ratio (with CCITT Filter ) dB 35 30 <
POWER CONSUMPTION
1. Base Unit (with AC Adaptor, Answer off)
a. Stand-by Charge Off mA 130 < 150
b. Stand-by Charge On mA 200 170 ~ 240
c. Talk mA 200 < 250
2. Charge Current (at BATTERY)
at Full Charged Battery mA 55 40 ~ 70
3. Portable Unit (at 3.8V)
a. Stand-by (Ave.) mA 1.6 < 4.0
b. In use mA 65 < 85
c. Super Sleep mA 0.9 < 2.0
4. Battery Low Detect Voltage V 3.30 3.20 ~ 3.40
OTHERS
1. Battery: Ni-Cd Battery 600 mAH (@1.2 V
×
3 = 3.6 V)
2. Memory: 10 Memories (Number 16 Digits) + 1 Redial Memory (32 Digits)
3. Operating Temperature:
−
10 °C ~ +50 °C
4. Storage Temperature:
−
20 °C ~ +60 °C
5. Dial Mode Switch: DTMF-PULSE (10pps) Soft Selectable
REQUIREMENTS COMPLIANCE
Unit is designed to fully meet with UL 1950 and FCC Rules, Part 15 and 68.