Panasonic KX-TGA915EXS Service Manual ▷ View online
5
KX-TGA915EXS
2.1.2.
How to Recognize that Pb Free Solder is Used
(Example)
(Component View)
Note:
The location of the “PbF” mark is subject to change without notice.
IC4
IC7
IC6
IC9
CN2
Marked
PbF
6
KX-TGA915EXS
3 Specifications
7
KX-TGA915EXS
4 Technical Descriptions
4.1.
Block Diagram
JT
AG
URX
UTX
GND
1
CN2
3.2 V
3.2 V
3.2 V
3.2 V
3.2 V
Q9
D1
2
3
4
5
vbus
D-
D+
ID
GND
IC3
USB Controller
X2
(12 MHz)
X1
(10.368 MHz)
IC8
IC2
Flash ROM
(8 Mbit)
IC1
BBIC
IC6
RF module
IC5
EEPROM
RESET
PUCTL
USB_INT
P2[0]
INT0n
USB_CS
ACS1
RST
P1[3]
ACS0
FLASH_CS
FLASH_R
Y/BY
MI/READY
P3[7]
SDA
SDA2
SCL2
SCL
WP
KX-TGA915 BLOCK DIAGRAM (BASE UNIT)
JTIO
URX
UTX
RESET
Circuit
IC4
Regulator
RESET
8
KX-TGA915EXS
4.2.
Circuit Operation
4.2.1.
Outline
USB adaptor consists of the following ICs as shown in Block Diagram (P.7).
• DECT BBIC (Base Band IC): IC1
- All data signals (forming/analyzing ACK or CMD signal)
- All interfaces (ex: Key, Detector Circuit, Charge, DC/DC Converter, Flash ROM, LCD)
- All interfaces (ex: Key, Detector Circuit, Charge, DC/DC Converter, Flash ROM, LCD)
• FLASH MEMORY: IC2
- Source program data and temporary user data are stored
• EEPROM: IC5
- All setting data is stored.
ex: ID code, user setting (Device name, Name & ID of connected device)
• RF Module: IC6
- PLL Oscillator
- Detector
- Compress/Expander
- Amplifier for transmission and reception
- Detector
- Compress/Expander
- Amplifier for transmission and reception
• Regulator IC: IC4
- +3.2 V regulator
• Regulator IC: IC7, IC9
- +2.5 V regulator
• USB Controller: IC3
• AND IC: IC8
• AND IC: IC8
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