Toshiba DP120F Service Manual page 379

• I/OP-1 GA Signal Table
No. Signal Name
55, 57 RLADJ11, 2
58, 59 HLEB6, 7
62, 63 HSER6, 7
64 SYSTEM1
65 TXALMX
66 BUCS
67 FMSTS
68 FMSTST2
69 MDSEL
70 RESETX
72 HLEAD
73-75 SPVOL0-2
76 RING/TONE
77 MDM1RESX
78 MDM2RESX
79 HCTR6
80 G1HZ
I: Input O: Output
DP120F/DP125F Circuit Description
(3/3)
Type
O Line 1 return loss adjust control signal
(EU/AU/ASIA models only)
Adjusts the return loss by switching the circuit.
RLADJ11
HIGH
HIGH
- Unused
- Signal ground
I Memory PBA detect signal (L: Installed)
Detects the installation status of the Memory PBA
(Option for DP120F).
I TX motor alarm signal (L: High temperature alarm)
Warns that the TX motor is hot.
I Backup status detect signal (H: Success, L: Failure)
Detects the backup status of data.
I Flash ROM status signal (H: READY, L: BUSY)
Detects the status of Flash ROM (IC13, IC20).
I Flash ROM status signal (H: READY, L: BUSY)
Detects the status of Flash ROM (IC21).
- +5V
I Reset signal (active-low)
Resets the system.
- Unused
O Speaker volume control signal
Controls the volume of the speaker.
O Ring/tone select signal (H: Ring, L: Tone)
Switches the signal to be monitored.
O Line 1 MODEM reset signal (active-low)
Resets the MODEM (IC5).
O Line 2 MODEM reset signal (active-low)
Resets the MODEM (IC1) on the MODEM PBA.
- Unused
- Unused
I/O: Bidirectional
Functions
RLADJ12
LOW LOW
LOW HIGH
LOW
HIGH
7-70
ASIA
Unused
AU
CTR21 (EU)
March 2000 © TOSHIBA TEC