Signal specification, TV Executive
| U= | DC voltage in volts (V) | Ubat = | Battery voltage (V) |
| Ulow = | Voltage approximately 0 V |
Fig 1: Identifying M2D Control Module (Fortv Executive. Rear Seat Entertainment, Generation 3.1/3.2, Premier TV Receiver) Connector
M2D control module (for the TV receiver)
| Terminal in control module connector N1 | Signal name | Signal type | Ignition on | Signal specification | ||
|---|---|---|---|---|---|---|
| N1-1 | VIDEO-in | Video signal TV | Analog signal | 1Vp-p +-0.2V |
||
| N1-2 | C-SYNC-in | Composite synch, TV | Analog signal | 0-5V | ||
| N1-3 | - | - | - | - | ||
| N1-4 | - | - | - | - | ||
| N1-5 | - | - | - | - | ||
| N1-6 | +B-TV | 30-supply to the TV tuner | U bat | - | ||
| N1-7 | GND-TV | Signal ground TV | U low | - | ||
| N1-8 | SHIELD-GND | Screen ground | U low | - | ||
| N1-9 | +B | 30-supply to the M2D control module | U bat | - | ||
| N1-10 | RHEO+-in | Background lighting, TV | U low | U bat
, when the BRIGHTNESS switch is pressed |
||
| N1-11 | REMOCON-out | Remote control TV | Digital signal | 33.3 kHz carrier wave when the remote control is pressed | ||
| N1-12 | - | - | - | - | ||
| N1-13 | GND | Ground | U low | - | ||
| N1-14 | - | - | - | - | ||
M2D control module (to the audio unit)
| Terminal in control module connector N4 | Signal name | Signal type | Ignition on | Signal specification | ||
|---|---|---|---|---|---|---|
| N4-1 | MSCK | Clock signal | Digital signal | Melbus protocol | ||
| N4-2 | SIG-GND | Signal ground | U low | - | ||
| N4-3 | EXT-ACC | 15 supply | U bat | - | ||
| N4-4 | MDATA | Data signal | Digital signal | Melbus protocol | ||
| N4-5 | MBUSY | Busy signal | Digital signal | Melbus protocol | ||
| N4-6 | LCH-OUT | Left audio channel | Alternating current when there is sound to the loudspeaker | 150m Vrms +/- 38mV (1kHz 30% mod) | ||
| N4-7 | RCH-OUT | Right audio channel | Alternating current when there is sound to the loudspeaker | 150m Vrms +/- 38mV (1kHz 30% mod) | ||
| N4-8 | - | - | - | - | ||
| H | FG | Screen ground | U low | - | ||
M2D control module (to the audio unit)
| Terminal in control module connector N5 | Signal name | Signal type | Ignition on | Signal specification | ||
|---|---|---|---|---|---|---|
| N5-1 | SIG-GND | Signal ground | U low | - | ||
| N5-2 | LCH-IN | Left audio channel | Alternating current when there is sound to the loudspeaker | 150m Vrms +/- 38mV (1kHz 30% mod) | ||
| N5-3 | - | - | - | - | ||
| N5-4 | RCH-IN | Right audio channel | Alternating current when there is sound to the loudspeaker | 150m Vrms +/- 38mV (1kHz 30% mod) | ||
| N5-5 | - | - | - | - | ||
| N5-6 | - | - | - | - | ||
| N5-7 | - | - | - | - | ||
| N5-8 | - | - | - | - | ||
| N5-9 | - | - | - | - | ||
| N5-10 | EXT-ACC | 15 supply | U bat | - | ||
| N5-11 | MBUSY | Busy signal | Digital signal | Melbus protocol | ||
| N5-12 | MSCK | Clock signal | Digital signal | Melbus protocol | ||
| N5-13 | MDATA | Data signal | Digital signal | Melbus protocol | ||
| H | FG | Screen ground | U low | - | ||
NOTE:
Before taking readings, the breakout box must be connected and the ground terminal must be checked. See Checking the ground terminals .
| DC voltage in volts (V) | Ulow = Voltage near V |
| Ubat = Battery voltage |
TV receiver terminals M1-M16 correspond to terminals #25-#40 on the breakout box.
| Control module terminal | Breakout box terminal | Signal type | Ignition on | Other |
|---|---|---|---|---|
| M1 | #25 | Video signal, TV | Analog signal | 1 V p-p +/- 0.2 V |
| M2 | #26 | Synchronizing signal, TV | Digital signal | 0-5 V |
| M3 | #27 | - | - | - |
| M4 | #28 | - | - | - |
| M5 | #29 | - | - | - |
| M6 | #30 | - | - | - |
| M7 | #31 | 30 supply | Ubat | - |
| M8 | #32 | Signal ground, TV signals | Ulow | - |
| M9 | #33 | Screen ground, TV signals | Ulow | - |
| M10 | #34 | - | - | - |
| M11 | #35 | - | - | - |
| M12 | #36 | - | - | - |
| M13 | #37 | Signal, remote control TV | Digital signal | 33.3 kHz carrier wave when the remote control is pressed |
| M14 | #38 | - | - | - |
| M15 | #39 | Ground (Measured to battery negative terminal) | Ulow | - |
| M16 | #40 | - | - | - |