SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
USB Player section
Interface:
USB (Full-speed)
Maximum current:
500mA
Power amplifi er section
Outputs:
Speaker outputs (sure seal connectors)
Speaker impedance:
4 – 8 ohms
Maximum power output:
52 W × 4 (at 4 ohms)
CDX-GT730UI/GT737UI/
GT780UI
CDX-GT730UI: US model/GT780UI
FM/AM COMPACT DISC PLAYER
CDX-GT730UI: AEP, UK, Italian model/GT737UI
FM/MW/LW COMPACT DISC PLAYER
9-889-377-01
2008L04-1
©
2008.12
US Model
AEP Model
UK Model
CDX-GT730UI
E Model
CDX-GT780UI
Russian Model
CDX-GT737UI
SPECIFICATIONS
CD Player section
Signal-to-noise ratio:
120 dB
Frequency response:
10 – 20,000 Hz
Wow and fl utter:
Below measurable limit
Tuner section
FM
Tuning range:
US model: 87.5 – 107.9 MHz
AEP, UK, IT, EA model: 87.5 – 108.0 MHz
E, MX model:
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
RU
model:
FM1/FM2: 87.5 – 108.0 MHz (at 50 kHz step)
FM3: 65 – 74 MHz (at 30 kHz step)
FM Tuning interval:
E, MX model: 50 kHz/200 kHz switchable
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency:
150 kHz
Usable sensitivity:
10 dBf
Selectivity:
75 dB at 400 kHz
Signal-to-noise ratio:
70 dB (mono)
Separation:
40 dB at 1 kHz
Frequency response:
20 – 15,000 Hz
AM (US, E, EA, MX model)
Tuning range:
US model: 530 – 1,710 kHz
EA model: 531 – 1,602 kHz
E, MX model:
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
AM Tuning interval:
E, MX model: 9 kHz/10 kHz switchable
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency:
25 kHz
Sensitivity:
26
μ
V
MW/LW (AEP, UK, IT, RU model)
Tuning range:
MW: 531 – 1,602 kHz
LW: 153 – 279 kHz
Antenna (aerial) terminal:
External antenna (aerial) connector
Intermediate frequency:
25 kHz
Sensitivity:
MW: 26
μ
V, LW: 45
μ
V
Model Name Using Similar Mechanism
CDX-GT63UIW/GT630UI/
GT637UI
CD Drive Mechanism Type
MG-101Z-188//Q
Optical Pick-up Name
DAX-25A
• The tuner and CD sections have no adjustments.
AUDIO POWER SPECIFICATIONS
(US model)
CEA2006 Standard
Power Output: 17 Watts RMS × 4 at
4 Ohms <1 % THD + N
SN Ratio: 82 dBA
(reference: 1 Watt into 4 Ohms)
Photo: CDX-GT730UI: AEP, UK, Italian model
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