DOWNLOAD Panasonic KX-UT248RU / KX-UT248RU-B (serv.man3) Service Manual ↓ Size: 3.83 MB | Pages: 101 in PDF or view online for FREE

Model
KX-UT248RU KX-UT248RU-B (serv.man3)
Pages
101
Size
3.83 MB
Type
PDF
Document
Service Manual
Brand
Device
PBX / SIP PHONE
File
kx-ut248ru-kx-ut248ru-b-sm3.pdf
Date
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Panasonic KX-UT248RU / KX-UT248RU-B (serv.man3) Service Manual ▷ View online

69
KX-UT248RU/KX-UT248RU-B
12.7. Waveform
12.7.1. No.(1)-(6)
(1) RESET Signal
(2) PoE Switching Regulator Signal
(3) FLASH(IC501) SIGNAL
(5) LCD SIGNAL (CONTROL) (1)
(5) LCD SIGNAL (CONTROL) (2) 
(4) SDRAM (IC502) SIGNAL
(6) LCD DATA (1)
(6) LCD DATA (1)
1. 3.3V
2. SYS-RST
Q401 G pin4
1. IC501 pin14 RESET 
2. IC501 pin32 CE
3. IC501 pin31 A0  
4. IC501 pin35 D0
1. IC502 pin38 SD_CLK  72MHz 
2. IC502 pin19 CS
3. IC502 pin23 A0  
 
4. IC502 pin2  D0
1. CN501 pin14  LCD_RST       2. CN501 pin12  LCD_CS
3. CN501 pin13  LCD_WR        4. CN501 pin15  LCD_RS
1. CN501 pin14  LCD_RST      2. CN501 pin12  LCD_CS
3. CN501 pin13  LCD_WR       4. CN501 pin15  LCD_RS
1. CN501 pin9  LCD_D0 
  2. CN501 pin8  LCD_D1
3. CN501 pin7  LCD_D2 
  4. CN501 pin6  LCD_D3
1. CN501 pin5  LCD_D4 
  2. CN501 pin4  LCD_D5
3. CN501 pin3  LCD_D6 
  4. CN501 pin2  LCD_D7
70
KX-UT248RU/KX-UT248RU-B
12.7.2.  No.(7)-(12)
(7) IC503 CLOCK
(8) ASIC SIGNAL (1)
(8) ASIC SIGNAL (2)
(10) CODEC IC (IC103) CONTROL
(11) SWITCH IC (IC401) CLOCK
(9) CODEC IC(IC103) CLOCK
(12) SWITCH IC(IC401) TX (1)
(12) SWITCH IC (IC401) TX (2)
1. IC508 pin8
2. IC508 pin5
1. IC204 pin1   ASIC_CLK      2. IC204 pin41  ASIC_RST 
3. IC204 pin43  I2C_SCL       4. IC204 pin44  I2C_SDA  
1. IC204 pin1   ASIC_CLK      2. IC204 pin41  ASIC_RST 
3. IC204 pin43  I2C_SCL       4. IC204 pin44  I2C_SDA  
IC103 pin69 :16.384MHz
1. IC103 pin10 UART2_TX
2. IC103 pin11 UART2_RX
IC401 pin125  CLOCK 25MHz
1. IC401 pin102   E_TXCLK       2. IC401 pin84     E_TXER
3. IC401 pin105    E_TXD0
1. IC401 pin105 E_TXD0       2. IC401 pin106 E_TXD1
3. IC401 pin107 E_TXD2       4. IC401 pin108 E_TXD3
71
KX-UT248RU/KX-UT248RU-B
12.7.3. No.(13)-(16)
(13) SWITCH IC (IC401) RX (1)
(13) SWITCH IC (IC401) RX (2)
(14) LAN port TX (10Base) (1)
(15) LAN port RX (10Base) (1)
(15) LAN port RX (10Base) (2)
(14) LAN port TX (10Base) (2)
(16) PC port TX (10Base) (1)
(16) PC port TX (10Base) (2)
1. IC401 pin101  E_RXCLK       2. IC401 pin96   E_RXDV
3. IC401 pin94   E_RXD0
1. IC401 pin94 E_RXD0 
     2. IC401 pin93 E_RXD1
3. IC401 pin92 E_RXD2 
     4. IC401 pin91 E_RXD3
Between pin1 and pin2 of JK402
Between pin8 and pin9 of IC401
Between pin3 and pin6 of JK402
Between pin11 and pin12 of IC401
Between pin1 and pin2 of JK401
Between pin24 and pin25 of IC401
72
KX-UT248RU/KX-UT248RU-B
12.7.4. No.(17)-(20)
(17) PC port RX (10Base) (1)
(17) PC port RX (10Base) (2)
(18) LAN port TX (100Base) (1)
(19) LAN port RX (100Base) (1)
(19) LAN port RX (100Base) (2)
(18) LAN port TX (100Base) (2)
(20) PC port TX (100Base) (1)
(20) PC port TX (100Base) (2)
Between pin3 and pin6 of JK401
Between pin28 and pin29 of IC401
Between pin1 and pin2 of JK402
Between pin8 and pin9 of IC401
Between pin3 and pin6 of JK402
Between pin11 and pin12 of IC401
Between pin1 and pin2 of JK401
Between pin24 and pin25 of IC401
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