Panasonic KX-TDA3194XJ Service Manual ▷ View online
4
KX-TDA3194XJ
2.1.1.
Suggested PbF Solder
There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper,
(Sn+Ag+Cu), you can also use Tin and Copper, (Sn+Cu), or Tin, Zinc, and Bismuth, (Sn+Zn+Bi). Please check the manufac
turer's specific instructions for the melting points of their products and any precautions for using their product with other
materials.
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.
(Sn+Ag+Cu), you can also use Tin and Copper, (Sn+Cu), or Tin, Zinc, and Bismuth, (Sn+Zn+Bi). Please check the manufac
turer's specific instructions for the melting points of their products and any precautions for using their product with other
materials.
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.
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KX-TDA3194XJ
3 Technical Descriptions
3.1.
Block Diagram
CN101
DHW[1]
C4M
LD[7:0]
LA[0]
C4M
LD[7:0]
LA[0]
LDHW[1]
HWCLK[0]
HWCLK[0]
LUHW[1]
nCSx
LA[11-10]
nHW_FH
SHW_CLK
nSHW_FH
C8K
C16K
LA[11-10]
nHW_FH
SHW_CLK
nSHW_FH
C8K
C16K
nRD
nWR
nWR
DX0
nDSPCS
HW_FH
nDSPCS
HW_FH
nDSPACK
nPDN
nDSPRST
nPDN
nDSPRST
Card_ID[7:0]
LA[3:0]
LD[7:0]
nRD
nWR
LD[7:0]
nRD
nWR
+5V
+3.3V
GND
+3.3V
GND
DTMFR[0]
DTMFR[1]
DTMFR[1]
CNGDET
VOX[3:0]
CS_PIO
PIO-ASIC
CO-CO
transfer
transfer
AGC,REC
DSP
IC1
IC2
Flash
Memory
CPLD
IC9
IC5
CNGSEL
IC7
CNG
detection(0)
VOX
detection(0)
VOX
detection(1)
VOX
detection(2)
VOX
detection(3)
CODEC
IC10
CODEC
IC11
KX-TDA3194XJ BLOCK DIAGRAM
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KX-TDA3194XJ
3.2.
Circuit Operations
3.2.1.
ESVM2 CARD
Composition:
DSP IC (IC1)
Flash ROM (IC2)
Circuit Operation:
This card has a voice message circuit of DSP and Flash ROM.
The DSP has the functions of PCM recording and playback, voice prompting, tone detection, VOX detection and FAX tone defec-
tion.
The DSP stores voice data and voice prompts in the Flash ROM.
DSP IC (IC1)
Flash ROM (IC2)
Circuit Operation:
This card has a voice message circuit of DSP and Flash ROM.
The DSP has the functions of PCM recording and playback, voice prompting, tone detection, VOX detection and FAX tone defec-
tion.
The DSP stores voice data and voice prompts in the Flash ROM.
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KX-TDA3194XJ
4 Location of Controls and Components
4.1.
Names and Locations
KX-TDA30 (The PBX)
5 Installation Instructions
5.1.
Installation of KX-TDA3194 (ESVM2 Card)
Function
2-channel simplified voice message card for Simplified Voice Message feature.
Accessory and User-supplied Items
Accessory (included): Extension Bolt x 1, Screw x 1
User-supplied (not included): none
User-supplied (not included): none