Read Panasonic KX-TDA6178X / KX-TDA6178XJ (serv.man3) Service Manual Supplement online
2
KX-TDA6178X / KX-TDA6178XJ
1 CHANGES
1.1.
Subject
KX-TDA6178X
KX-TDA6178XJ
SUFFIX LOCATION
1.2.
Specifications
Change from the Original Service Manual Section 3.
Suffix
Reason for suffix change
E to F
Change PCB for VE and Change Software (U2Q1AE
→U2Q1AG) for improvement market quality.
Suffix
Reason for suffix change
H to I
Change PCB for VE and Change Software (U2Q1AE
→U2Q1AG) for improvement market quality.
Functional Block
Functional contents
Extension Interface
Number of Ports
24 ports
SLT Interface
-26V 26mA Feeding function
Dial-pulse signal detecting function
DTMF signal detecting function
Bell signal issuing function
Hook detecting function
Ringtrip detecting function
2W/4W converting function
Surge protective function
CODEC function
Dial-pulse signal detecting function
DTMF signal detecting function
Bell signal issuing function
Hook detecting function
Ringtrip detecting function
2W/4W converting function
Surge protective function
CODEC function
• Test function (Loop back, Tone generation)
• Programmable digital filtering function
• Serial interface function
• PIO function
• Programmable digital filtering function
• Serial interface function
• PIO function
DTMF Receiver
24 lines for each port
Caller ID (FSK)
24 lines for each port
On-board Ringer
20/25Hz 65Vrms
Phase control (Three-phase / Four-phase)
Phase control (Three-phase / Four-phase)
On-board DC/DC Power Supply
Input +15V
Output +3.3V
Input +40V
Output : VBAT(The required negative battery voltage).
The battery voltage generation circuit intelligently tracks the VBAT voltage to the optimal value under each
operating state (e.g. on-hook, off-hook, ringing, etc.)
Output +3.3V
Input +40V
Output : VBAT(The required negative battery voltage).
The battery voltage generation circuit intelligently tracks the VBAT voltage to the optimal value under each
operating state (e.g. on-hook, off-hook, ringing, etc.)
Power Failure Forwarding Function
4 lines supported
ASIC
EC bus interface function
H.100 bus interface function, Digital PLL function
Local bus interface function
Time switch function, Gain controlling function, FIFO/DPRAM function
Intelligent PIO function
H.100 bus interface function, Digital PLL function
Local bus interface function
Time switch function, Gain controlling function, FIFO/DPRAM function
Intelligent PIO function
Control Unit
CPU
SH-1/SH7020 (12.288MHz)
Flash ROM
512Kbyte
SRAM
128Kbyte
PLD
• Interface between codec and CPU
• Lattice MachX02 LCMXO2-640HC-4TG100C
• Lattice MachX02 LCMXO2-640HC-4TG100C
LED Display Circuit
Card status indicating LED: Two colors (Red/Green)
External Interface Connector
Extension interface
50pin Amphenol connector: 1
Power failure forwarding 4pin modular jack: 1
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