Technics SA-DV250 User Manual

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Service Manual
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ORDER NO. AD0103076C2
Stereo tuner/ amplifier
l
SA-DV250
Colour
(S).......................Silver Type
Areas
EB.......................Great Britain.
EG.......................Europe.
System: SC-DV250
Because of unique interconnecting cables, when a
compact requires service, send or bring in the entire
system.
Specification
•Amplifier Section (Low frequency side)
Power output
DIN 100Hz, THD 1%, 8Ω both channels driven:
2x45W
RMS 100Hz, THD 10%, 8Ω both channels driven:
2x65W
•Amplifier Section (High frequency side)
Power output
DIN 1kHz, THD 1%, 6Ω both channels driven:
2x25W
RMS 1kHz, THD 10%, 6Ω both channels driven:
2x35W
Power output (prologic mode)
DIN (front: high frequency) 1kHz, THD 1%, 6Ω both channels driven:
2x25W
(front: low frequency) 100Hz, THD 1%, 8Ω both channels driven:
2x45W
(surround) 1kHz, THD 1%, 8Ω both channels driven:
2x30W
(center) 1kHz, THD 1%, 8Ω: 60W
RMS (front: high frequency) 1kHz, THD 10%, 6Ω both channels driven:
2x35W
(front: low frequency) 100Hz, THD 10%, 8Ω both channels driven:
2x65W
(surround) 1kHz, THD 10%, 8Ω both channels driven:
2x40W
(center) 1kHz, THD 10%, 8Ω: 80W
• Total harmonic distorition
Rated power at 1kHz/ 6Ω: 1%
Half power at 1kHz/ 6Ω: 0.1%
• Load impedance
Front
(high frequency): 6Ω
(low frequency): 8Ω
Surround: 8Ω
Center: 8Ω
• FM tuner section
Frequency range: 87.50-108.00MHz
(0.05MHz steps)
Sensitivity (S/N 26dB): 1.5μV
S/N: MONO 70dB
(75dB, IHF)
Antenna terminals: 75Ω (unbalance)
• AM tuner section

Technics SA-DV250 Specifications

General

Brand	Technics
Model	SA-DV250
Category	Amplifier
Language	English

Summary

SA-DV250 Specifications

Amplifier Section Details

Details on amplifier power output for high and low frequency sides, including PROLOGIC mode.

Distortion, Load Impedance, and Tuner Specs

Specifications for THD, rated power, load impedance, and FM/AM tuner sections.

Malfunction Code Display

U70 DVD/DECK Code Display

Automatic display of U70 DVD/DECK codes on the tuner/amplifier during malfunctions.

F61 Code Display

Automatic display of F61 code on the tuner/amplifier during malfunctions.

Returning to Normal Display

U70 DVD/DECK Code Return Procedure

Steps to revert from U70 DVD/DECK error codes to normal operation.

F61 Code Return Procedure

Procedure to return the system to normal display after an F61 error.

U70 Malfunction Troubleshooting

U70 Problem Description and Impact

Bus-line communication error due to incorrect flat cables, disabling remote operation.

U70 Correction Steps

Check/replace flat cables or faulty IC (IC901 for SA-DV250) to resolve U70 error.

F61 Malfunction Troubleshooting

F61 Problem Description

Unit automatically switches off upon power-on, preventing normal operation.

F61 Correction Procedure

Identifies faulty output IC (IC601) in SA-DV250 as the cause of F61 error.