Marantz SR7400 Specification

RS232C Control Spec. Page: 2 / 17
SR7400/8400 Document Version [1.00]
Table of Contents
1.
Introduction ............................................................................................................................................................ 3
1-1. Purpose ............................................................................................................................................................ 3
1-2. Scope................................................................................................................................................................ 3
1-3. Abbreviations ...................................................................................................................................................3
1-4. References....................................................................................................................................................... 3
2. Global Description ................................................................................................................................................ 3
2-1. Overview........................................................................................................................................................... 3
2-2. Block Diagram.................................................................................................................................................. 3
2-3. Interface connecter specification of This Product .......................................................................................... 3
2-4. Assumptions and Dependencies.................................................................................................................... 3
3. Detailed Description.............................................................................................................................................. 4
3-1. Connection format ........................................................................................................................................... 4
3-1-1. Physical connection................................................................................................................................. 4
3-1-1-1. Data transmission sequence from Host to Slave .......................................................................... 4
3-1-1-2. Data transmission sequence from Slave to Host .......................................................................... 4
3-2. Transmission data format................................................................................................................................ 5
3-2-1. Transmission data format from Host to Slave........................................................................................ 5
3-2-1-1. Form1: Command ........................................................................................................................... 5
3-2-1-2. Form2: Status request..................................................................................................................... 5
3-2-2. Transmission data format from Slave to Host........................................................................................ 5
3-2-2-1. Form1: ACK/NAK ............................................................................................................................ 5
3-2-2-2. Form2: Status answer ..................................................................................................................... 5
3-3. The transaction sequences and the regulations............................................................................................ 6
3-3-1. The transaction sequences..................................................................................................................... 6
3-3-2. The transaction regulations..................................................................................................................... 6
3-3-3. Example of the transactions.................................................................................................................... 6
3-3-4. Examples of the handshaking flowchart ................................................................................................ 7
3-3-4-1. Example of successful handshaking.............................................................................................. 7
3-3-4-2. Example of error handshaking........................................................................................................ 7
3-4. Command list ................................................................................................................................................... 8
3-4-1. Normal Command list.............................................................................................................................. 8
3-5. Status request and Status answer list...........................................................................................................13
3-5-1. Normal Status request and Status answer list .....................................................................................13
4. Revision history...................................................................................................................................................17

Marantz SR7400 Specifications

General

Number of Channels	7
DTS Processing	DTS, DTS-ES, DTS Neo:6
Component Video Inputs	3
Tuner	AM/FM
Type	AV Receiver
THD	0.08%
Input Sensitivity	200 mV
Signal to Noise Ratio	105 dB
Frequency Response	10 Hz - 100 kHz
Weight	28.7 lbs
Total Harmonic Distortion	0.08%
Signal-to-Noise Ratio	105 dB
HDMI Inputs	No
Preamp Outputs	Yes
Output Power (8 ohms)	105 watts per channel
Digital inputs	3 optical, 2 coaxial
Input Sensitivity/Impedance	200 mV / 47k ohms