Panasonic KX-T7636 Service Manual Download Page 44

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PCM TX DATA

HANDSET RX

PCM RX DATA

HANDSET TX
HEADSET RX
HEADSET TX
SP PHONE RX
SP PHONE TX

CN7

CN6

JK1

MIC

C58

A3.3V

IC2

FC2

FC1

Vin

VO1

VCC

GND

VO2

C38

R26

C33

C27

A3.3V

C21

C41

R32

R33

R34

R30

C40

R29

R31

IC4

GSR1

SCLK

VREF

VFR1

GST1

VFTN1

BCLK

VSS

VR1

VDD

LPC

DATA

TNOUT

GST0

VFTN0

VFR0

GSR0

VR0

CSN

VFTP0

VFTP1

R28

C37

C44

A3.3V

JK4

R41

R45

R40

CN5

HS2SP

GND

HS2MIC

C19

C20

C36

R27

R19

R20

A3.3V

R18

A3.3V

R17

R42

C43

R36

C48

C47

C66

A3.3V

CN4

D3.3V

R47

R46

C56

C53

R43

C68

R24

C32

C51

SP1

MIC1

AG1

SP2

AG2

MIC2

MIC3

AG3

SP3+

SP3-

R49

R50

R35

R51

R12

C28

C29

C30

C31

C46

C23

C50

C49

R38

D3.3V

PN9CLK

IC7

C108

A3.3V

IC5

OEP/PN9CLK

PVSS

PVDD

RIN

PLLO

PEP/SCLK

PCM2M

PSR

PSX

SPOP

SPON

SPI

PLLI

VREF0

AVDD

PSYNC

CK16M

C59

C111

Q16

R120

R121

C112

R128

R124

R125

R126

C144

C42

R130

C146

C126

C125

C124

C147

C120

C35

C142

C121

C123

C122

C148

C149

CLK

DATA

MIC

TO HANDSET

ANALOG CIRCUIT

Summary of Contents for KX-T7636

Page 1: ...roprietary Telephone KX T7636 KX T7636 B White version Black version for U S A 2003 Panasonic Communications Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law IMPORTANT INFORMATION ABOUT LEAD FREE PbF ...

Page 2: ... and others like it manufactured using lead free solder will have PbF stamped on the PCB For service and repair work we suggest using the same type of solder although with some precautions standard Pb solder can also be used Caution PbF solder has a melting point that is 50 70 F 30 40 C higher than Pb solder Please use a soldering iron with temperature control and adjust it to 700 20 F 370 10 C In...

Page 3: ...s stamped to show that Pb free solder is used See the figure below 2 FOR SERVICE TECHNICIANS ICs and LSIs are vulnerable to static electricity When repairing the following precautions will help prevent recurring malfunctions 1 Cover the plastic parts boxes with aluminum foil 2 Ground the soldering irons 3 Use a conductive mat on the worktable 4 Do not touch IC or LSI pins with bare fingers 3 SPECI...

Page 4: ...4 LOCATION OF CONTROLS ...

Page 5: ...5 CONNECTION Caution Consult your dealer for more details about XDP 6 DISASSEMBLY INSTRUCTIONS ...

Page 6: ...1 Remove 9 Screws A 2 Remove the Bottom Cabinet 3 Remove the P C Board from the Top Cabinet 7 HOW TO REPLACE A FLAT PACKAGE IC 7 1 PREPARATION PbF Pb free Solder Soldering Iron ...

Page 7: ...eaning type Note See ABOUT LEAD FREE SOLDER PbF Pb free 7 2 PROCEDURE 1 Tack the flat pack IC to the PCB by temporarily soldering two diagonally opposite pins in the correct positions on the PCB Be certain each pin is located over the correct pad on the PCB 2 Apply flux to all of the pins on the IC 3 Being careful to not unsolder the tack points slide the soldering iron along the tips of the pins ...

Page 8: ... BETWEEN PINS 1 Add a small amount of solder to the bridged pins 2 With a hot iron use a sweeping motion along the flat part of the pin to draw the solder from between the adjacent pads 8 TROUBLESHOOTING GUIDE 8 1 NO OPERATION ...

Page 9: ...Note Refer to 1 5 of WAVEFORM for waveform 8 2 LCD DOES NOT OPERATE ...

Page 10: ...Note Refer to 6 of WAVEFORM for waveform 8 3 HANDSET DOES NOT WORK Receive Send ...

Page 11: ...Note Refer to 7 8 of WAVEFORM for waveform 8 4 HEADSET DOES NOT WORK Receive Send Note ...

Page 12: ...Refer to 7 8 of WAVEFORM for waveform 8 5 SPEAKER PHONE TROUBLE Receive Send Note Refer to 7 8 of WAVEFORM for waveform 8 6 DXDP DPT DOES NOT WORK ...

Page 13: ...OT WORK 9 BLOCK DIAGRAM 10 CIRCUIT OPERATIONS 10 1 KEY INPUT CONTROL CIRCUIT The key data is under the matrix control by 19 to 23 25 44 45 KEYOUT and 28 to 35 KEYIN of IC3 The key information outputted from KEYOUT is inputted into KEYIN when the key is pressed ...

Page 14: ...ch outputs the voltage necessary for LCD driving 4 5V from 1 2V generated at IC8 as a reference to 3 3V of the power supply voltage is pressurized four times in the LCD module and used as LCD driving voltage approx 18V LCD contrast is set by electronic volume in the LCD module The type of the LCD module is distinguished by pin 62 of IC3 ...

Page 15: ...Pin 62 of IC3 L KX T7636 24 digits 6 lines H KX T7630 KX T7633 24 digits 3 lines The lighting of the backlight is controlled by Q1 IC3 pin 56 H Q1 ON Backlight ON IC3 pin 56 L Q1 OFF Backlight OFF ...

Page 16: ...and pin 11 to 16 Colum of IC5 The LED lights up in a dynamic lighting system The duty ratio is 1 8 ON time 1 5ms Only D107 of LED for CO7 lights up in a static lighting system IC5 pin 55 H CO7 Green ON IC5 pin 55 L CO7 Green OFF IC5 pin 56 H CO7 Red ON IC5 pin 56 L CO7 Red OFF ...

Page 17: ...10 4 RESET CIRCUIT Reset Signal is outputted from IC1 and inputted into IC3 and IC5 at the connection of TEL cord ...

Page 18: ...into the power supply voltage of 3 3V by IC6 Switching Regulator IC IC10 controls the power supply circuit as below to turn IC6 on in low consumption current at starting up Input Voltage approx 30V or less IC10 pin 1 L IC6 OFF Input Voltage approx 30V or more IC10 pin 1 HiZ IC6ON ...

Page 19: ...D control LCD control voice data etc This information is continuously exchanged at all times Circuit Operation The data received from PBX is inputted to the comparator pin 68 built in IC5 through Pulse Trans T1 The threshold voltage of the comparator is determined by R62 to 64 and inputted to pin 67 and 29 The data to PBX is outputted from pin 70 and 71 of IC5 drives T1 by Transistor Q2 and transm...

Page 20: ...he data from Slave DPT is inputted to the comparator pin 61 built in IC5 The threshold voltage of the comparator is determined by R65 to 67 and inputted to pin 60 and 62 Also the supplying power to Slave DPT is controlled by a constant current circuit of Q15 as below IC5 pin 58 as H Constant current circuit ON IC5 pin 58 as L Constant current circuit OFF IC5 pin 57 as H 40mA Feeding Slave DPT usua...

Page 21: ...setting of the call path vol adjustment in each call mode by DSP built in IC5 The audio gain of each call is determined by download data from PBX IC5 sends each audio data to IC4 by PCM interface IC5 receives each audio data from IC4 by PCM interface 1 Handset Call Transmitting signal is inputted from handset microphone and amplified by IC4 built in Amp A D conversion inputted to IC5 in PCM data G...

Page 22: ...om Q16 transistor for buffer to headset 3 Speakerphone Call Speakerphone call realizes all double call by DSP echo canceller built in IC5 For a call in the most appropriate condition DSP checks voice level of the calling party acousticity in a room voice level of the other party and state of the line of contact and cancels echo in transmitting and receiving at the start of calling It operates in a...

Page 23: ...SP PLL adjustment 8 PLLI in DSP PLL adjustment 9 PLLO out DSP PLL adjustment 10 GND Digital ground 11 CML5 out LED column drive 5 12 CML4 out LED column drive 4 13 CML3 out LED column drive 3 14 CML2 out LED column drive 2 15 CML1 out LED column drive 1 16 CML0 out LED column drive 0 17 VDD Digital power supply 18 GND Digital ground 19 NROW9 out LED row drive 9 20 NROW8 out LED row drive 8 21 NROW...

Page 24: ...clock output 40 GND Digital ground 41 VDD Digital power supply 42 AG Analog ground For D A 43 VREFO out Analog reference voltage 44 SPOP out Side of output for handset SP Amp 45 SPON out Side of output for handset SP Amp 46 SPI in Input for handset SP 47 AVDD Digital power supply 48 GND Digital ground 49 PCK4MN tri 4 096MHz serial clock 50 PSX tri 2 048MHz serial data output 51 PSYNC tri 8Khz fram...

Page 25: ...utput 72 SCANE in Built in down Scan test enable pin 73 SCAN in Built in down Scan test enable pin 74 TEST0 in Test mode pin 0 75 TEST1 in Test mode pin 1 76 CK16M tri 16Mhz clock For Test 77 CK8M tri 8MHz clock For CPU 78 GND Digital ground 79 OSI in Crystal oscillator input 80 OSO out Crystal oscillator output 81 VDD Digital power supply 82 ADR6 in Built in Address 6 83 ADR5 in Built in Address ...

Page 26: ...ark 1 X1 I not in use Connecting to Vcc 2 X2 O not in use Open 3 Vss GND 4 OSC2 O Open 5 OSC1 I 8MHz clock from 8 192MHz ASIC 6 TEST I not in use Connecting to Vss 7 Vcc Power terminal 3 3V 8 Reset I Reset input Low active 9 P20 IRQ4 I Built in OP Rx Rdy 10 P21 SCK1 O LCD_SCK 11 P22 SI1 I Built in OP_Busy Low active 12 P23 SO1 O LCD_DATA 13 P24 SCK3 O Built in OP_SCK 14 P25 RxD I Built in OP_RXD 1...

Page 27: ...in KEY IN3 32 P54 WKP4 I Built in KEY IN4 33 P55 WKP5 I Built in KEY IN5 34 P56 WKP6 I Built in KEY IN6 35 P57 WKP7 O Built in not in use 36 P60 I O Built in DB0 37 P61 I O Built in DB1 38 P62 I O Built in DB2 39 P63 I O Built in DB3 40 P64 I O Built in DB4 41 P65 I O Built in DB5 42 P66 I O Built in DB6 43 P67 I O Built in DB7 44 P70 O AD0 KEY OUT6 45 P71 O AD1 KEY OUT7 46 P72 O AD2 47 P73 O AD3 ...

Page 28: ...ing 60 TONED O not in use not in use 61 VTref I not in use not in use 62 PB7 AN7 I out Model distinction 2 A D H 30 33 L 36 63 PB6 AN6 I out Option detection 64 CVcc I Internal electrical power source Connecting 0 1 F to GND 12 TERMINAL GUIDE OF ICs TRANSISTORS AND DIODES 13 CABINET AND ELECTRICAL PARTS LOCATION ...

Page 29: ...14 ACCESSORIES AND PACKING MATERIALS ...

Page 30: ...he Retention Time is limited for this item After the discontinuation of this assembly in production the item will continue to be available for a specific period of time The retention period of availability is dependent on the type of assembly and in accordance with the laws governing parts and ...

Page 31: ...ure s specified parts 3 The S mark means the part is one of some identical parts For that reason it may be different from the installed part 4 ISO code Example ABS HB of the remarks column shows quality of the material and a flame resisting grade about plastics 5 RESISTORS CAPACITORS Unless otherwise specified All resistors are in ohms K 1000 M 1000k All capacitors are in MICRO FARADS F P F Type W...

Page 32: ...SJS02P14Z CONNECTOR 2 PIN 15 PQAS57P03Z SPEAKER 16 PSGP1074Z COVER LCD HOLDER PC HB 17 L5DAALD00001 LIQUID CRYSTAL DISPLAY 18 A4LZGD000001 FLUORESCENT LAMP BACK LIGHT UNIT 19 PSBX1092Z1 PUSH BUTTON SOFT for KX T7636 ABS HB 19 PSBX1092Z2 PUSH BUTTON SOFT for KX T7636 B ABS HB 20 PSBX1091Z1 PUSH BUTTON FUNCTION for KX T7636 ABS HB 20 PSBX1091Z2 PUSH BUTTON FUNCTION for KX T7636 B ABS HB 21 PSBX1089Z...

Page 33: ...KX T7636 B ABS HB 36 PSHG1233Z SPACER RUBBER 37 PSKM1085Z1 CABINET BODY BASE for KX T7636 ABS HB 37 PSKM1085Z2 CABINET BODY BASE for KX T7636 B ABS HB 38 PSKL1014Z1 STAND for KX T7636 PS HB 38 PSKL1014Z2 STAND for KX T7636 B PS HB 39 PSYF1036Z1 CABINET COVER BASE ASS Y for KX T7636 PS HB 39 PSYF1036Z2 CABINET COVER BASE ASS Y for KX T7636 B PS HB 39 1 PSHA1010Z RUBBER PARTS FOOT 39 2 PSHA1011Z RUB...

Page 34: ... BOARD ASS Y RTL ICs IC1 C0EBF0000123 IC IC2 C0ABGA000023 IC IC3 C2BBGF000354 IC IC4 C1CB00001408 IC IC5 C1CB00001383 IC IC6 C0DBAGG00006 IC IC7 PQVITC4W53FU IC IC8 PQVITC7SH04F IC S IC9 C3EBAC000002 IC IC10 PQVIC61CN30N IC S TRANSISTORS Q1 PQVTDTC143XU TRANSISTOR SI S Q2 PSVTUMS1NTR TRANSISTOR SI S Q3 B1GHCFCJ0001 TRANSISTOR SI Q4 B1GHCFEM0001 TRANSISTOR SI Q5 B1GHCFEM0001 TRANSISTOR SI Q6 B1GHCF...

Page 35: ... D117 PQVDBRPY1204 LED S D118 PQVDBRPY1204 LED S D119 PQVDBRPY1204 LED S D120 PQVDBRPY1204 LED S D121 PQVDBRPY1204 LED S D122 PQVDBRPY1204 LED S D123 PQVDBRPY1204 LED S D124 PQVDBRPY1204 LED S D125 PSVD1SRCT LED S D126 PSVD1SRCT LED S D127 PSVD1SRCT LED S D128 PSVD1SRCT LED S D129 PSVD1VGCT LED S D130 B3AAB0000111 DIODE SI D131 B3ABB0000146 DIODE SI D132 B3ABB0000146 DIODE SI D133 PSVD1SRCT LED S ...

Page 36: ...1ST CERAMIC FILTER S COILS L5 G1A331D00005 COIL COMPONENT PARTS RA1 D1H81224A010 RESISTOR ARRAY TRANSFORMER T1 ETJS13ZA14AB TRANSFORMER CRYSTAL OSCILLATOR X1 PSVCC0052C CRYSTAL OSCILLATOR S RESISTORS J4 ERJ3GEY0R00 0 L4 ERJ6GEYJ3R3 3 3 R1 ERJ3GEYJ105 1M R2 ERJ3GEYJ105 1M R3 ERJ3GEYJ105 1M R4 ERJ3GEYJ105 1M R5 ERJ3GEYJ3R3 3 3 R6 ERJ3GEY0R00 0 R7 ERJ3GEYJ471 470 R8 ERJ3GEYJ473 47k R9 ERJ3GEYJ103 10k...

Page 37: ... 10k R48 ERJ3GEYJ181 180 R49 ERJ3GEYJ102 1k R50 ERJ3GEYJ102 1k R51 ERJ3GEYJ102 1k R52 ERJ3GEYJ471 470 R53 ERJ3GEYJ471 470 R54 ERJ3GEYJ471 470 R55 ERJ3GEY0R00 0 R56 ERJ3GEYJ122 1 2k R57 ERJ3GEYJ122 1 2k R58 ERJ3GEYJ105 1M R59 ERJ3GEYJ331 330 R60 ERJ3GEYJ182 1 8k R61 ERJ3GEYJ182 1 8k R62 ERJ3GEYJ822 8 2k R63 ERJ3GEYJ562 5 6k R64 ERJ3GEYJ123 12k R65 ERJ3GEYJ562 5 6k R66 ERJ3GEYJ682 6 8k R67 ERJ3GEYJ1...

Page 38: ...3GEYJ100 10 R102 ERJ3GEYJ223 22k R103 ERJ3GEYJ681 680 R104 ERJ3GEYJ270 27 R105 ERJ3GEYJ270 27 R106 ERJ3GEYJ270 27 R107 ERJ3GEY0R00 0 R108 ERJ3GEYJ121 120 R109 ERJ3GEYJ473 47k R110 ERJ3GEYJ473 47k R116 ERJ3GEYJ153 15k R117 ERJ3GEYJ102 1k R118 ERJ3GEYJ105 1M R119 ERJ3GEYJ184 180k R120 ERJ3GEYJ103 10k R121 ERJ3GEYJ102 1k R124 ERJ3GEYJ105 1M R125 ERJ3GEYJ274 270k R126 ERJ3GEYJ682 6 8k R127 ERJ3GEYJ100...

Page 39: ...2 C29 ECUV1A106ZF 10 C30 ECUV1C475ZF 4 7 C31 ECUV1A106ZF 10 C32 ECUV1H122KBV 0 0012 C33 ECUV1C104ZFV 0 1 C35 ECUV1H100DCV 10P C36 ECUV1C104KBV 0 1 C37 ECUV1C104KBV 0 1 C38 ECUV1H153KBV 0 015 C39 ECUV1H152KBV 0 0015 C40 ECUV1H820JCV 82P C41 ECUV1H680JCV 68P C42 ECUV1H332KBV 0 0033 C43 ECUV1C104KBV 0 1 C44 PQCUV1C224ZF 0 22 S C46 ECUV1A106ZF 10 C47 ECUV1C104ZFV 0 1 C48 ECUV1C104ZFV 0 1 C49 ECUV1A106...

Page 40: ...QCUV1C105ZF 1 S C100 PQCUV1H105JC 1 S C101 ECUV1C104ZFV 0 1 C102 PQCUV1C224ZF 0 22 S C103 PQCUV1C105ZF 1 S C104 PQCUV1H105JC 1 S C105 ECUV1H103KBV 0 01 S C106 ECUV1E104ZFV 0 1 S C107 F2G1H3300004 33 C108 ECUV1H102KBV 0 001 S C109 ECUV1H103KBV 0 01 S C110 ECUV1C104ZFV 0 1 C111 EEE0GA331WP 330 C112 ECUV1C104KBV 0 1 C114 ECUV1E223KBV 0 022 C115 ECUV1H103KBV 0 01 S C116 ECUV1H103KBV 0 01 S C117 ECUV1C...

Page 41: ... 1 DC voltage measurements are taken with an oscilloscope or a tester with a ground 2 The schematic diagrams and circuit board may be modified at any time with the development of new technology 17 SCHEMATIC DIAGRAM 18 WAVEFORM 19 PRINTED CIRCUIT BOARD MAIN SUB BOARDS 19 1 COMPONENT VIEW 19 2 BOTTOM VIEW NT1 KXT7636 KXT7636B ...

Page 42: ... R124 R51 33 36 30 25 C43 C116 R33R32 C134 R24 R12 C122 C36 MIC2 AG2 CN8 CN6 1 2 SP2 E6 B1 A1 9 1 F7 F6 Q16 C113 AG3 E7 F4 MIC3 E3 A C35 C33 SP3 SP3 C27 1 4 1 2 A3 3V C32 C142 IC7 IC2 1 1 8 C42 C41 C125 C45 R35 C136 R31 R125 R27 C39 R30 R126 C21 C146 C124 IC4 12 13 24 1 R129 C55 C56 R56 R94 Q3 Q4 Q5 Q6 Q7 C73 R54 R110 C57 C82 JK4 R132 R122 C67 R55 C70 C59 C111 C65 C76 R42 C137 C58 C62 C61 C60 R103...

Page 43: ...lor Function LED 8 LED s driver Tr Q3 7 Q11 13 LED Function LED 1 D133 Function Key 12 X1 16 384MHz 3 3V 3 3V TO LCD CN1 HOOK SW SO SCL A0 RES CS1 HF COMP IC5 ASIC EEPROM 128bit IC9 LIGHT TO LIGHT CN2 SP MIC JK4 HEADSET JACK POWER IC6 PCM I F Q1 IC2 8 196MHz D6 T1 OSX OSR OSYNC OCK2M RESETOUT SCLK TxD RxD TxEN RxRDY BUSY OPDET DPTS I F COMP DATA COMUNICATION Q8 Q9 Q2 Q15 IC7 LED Message D130 132 C...

Page 44: ...2 AG R41 R45 R40 CN5 1 HS2SP 2 GND 3 HS2MIC 4 C19 C20 C36 R27 R19 R20 A3 3V AG AG R18 A3 3V R17 R42 C43 R36 C48 C47 C66 DG A3 3V AG CN4 1 2 3 4 DG D3 3V R47 R46 C56 C53 R43 DG C68 R24 C32 C51 SP1 MIC1 AG1 SP2 AG2 MIC2 MIC3 AG3 SP3 SP3 R49 R50 R35 R51 AG R12 C28 C29 C30 C31 C46 C23 AG C50 C49 R38 D3 3V PN9CLK IC7 1 6 7 5 IC7 8 4 2 3 C108 A3 3V IC5 OEP PN9CLK 30 PVSS 5 PVDD 6 RIN 7 PLLO 9 PEP SCLK 5...

Page 45: ...D_CS 1 LCD_A0 3 LCD_SCK 4 LCD_DATA 5 MODELCOAD 22 R2147K DG JK4 1 5 4 3 2 AG CN5 1 HS2SP 2 GND 3 HS2MIC 4 C19 Z0 01 C20 1000P C36 0 1 R27 18K R19 1K R20 2 2K A3 3V AG AG R18 2 2K A3 3V R17 1 8K C43 0 1 A3 3V AG CN4 1 2 3 4 R23 33K R24 56K C32 1200P C39 NC R14 SP1 MIC1 AG1 SP2 AG2 MIC2 MIC3 AG3 SP3 SP3 C25 Z0 01 C26 Z0 01 NC R16 R12 3 3 C28 Z22 C29 Z10 C30 Z4 7 C31 Z10 C23 Z0 1 DG D3 3V C18 Z0 1 R1...

Page 46: ... Z0 1 DG C10 Z0 1 D3 3V DG C1 Z2 2 C2 Z2 2 C3 Z2 2 C4 Z2 2 C5 Z1 C6 Z1 C7 Z1 C8 Z1 C9 50VZ1 R3 1M R4 1M R1 1M R2 1M C22 Z0 1 IC8 2 4 DG D2 D3 SW132 CO6 SW140 AUTO STORE D11 D8 AREACOAD3 D10 MODELCOAD2 D6 AREACOAD1 D7 AREACOAD2 SW141 4 SW133 5 SW125 6 SW147 TRANS E1 E2 E4 E3 E6 E5 E8 E7 F1 F3 F2 F5 F4 F7 F6 F8 1 2V DG C15 Z0 01 IC1 Vout 1 Vin 2 Vss 4 NC 3 DG C13 Z0 1 R6 0 NC C16 SW156 UP SW149 SPPH...

Page 47: ...C103 50V Z1 R88 8 2K R41 47K R45 47K R40 47K R42 39K R36 33K C48 Z0 1 C47 Z0 1 C66 Z0 1 C73 Z0 1 DG Q14 1 4 3 2 5 6 R97 27 R99 18 R89 12K DG D3 3V R47 10K R46 220 C56 0 1 C53 0 1 R43 5 6K DG C68 B A C51 0 1 A3 3V GND R49 1K R50 1K R35 1K R51 1K AG NC C60 NC C61 NC C45 NC C62 DG DG DG R48 180 C46 Z10 D4 Q15 E C B AG CN13 1 A UK 2 T 3 R 4 Q9 1 2 3 4 5 6 C50 Z10 C49 Z10 R38 47K D3 3V PN9CLK R108 120 ...

Page 48: ...5 DG DG C67 Z0 01 NC C70 NC C82 CN11 1 2 3 4 CN12 1 2 3 4 Q12 1 6 2 4 3 5 Q13 1 6 2 4 3 5 CN10 18 VDD 1 GND 11 GND 13 GND 8 OSX 9 OSR 10 OSYNC 12 OCK2M 4 SCLK 6 TxD 5 RxD 7 TxEN 14 RESETOUT2 2 RxRDY 3 BUSY 15 OPDET 16 VDD 17 VDD G8 H6 AG OCK4MN 35 REN 2 WEN 1 OPO EYECLK 36 OP1 EYESYNC 37 OP2 EYED 38 OP3 39 INTN 4 OSR 32 OSX 31 OSYNC 33 OCK2M 34 11 CLM5 12 CLM4 13 CLM3 14 CLM2 15 CLM1 16 CLM0 19 NR...

Page 49: ...D3 3V Pin8 of IC3 and Pin100 of IC5 2 3 1 Pin80 of IC5 16 384MHz Pin5 of IC3 8 196MHz Pin8 of IC3 and Pin100 of IC5 Reset signal ...

Page 50: ... Pin4 of CN1 Pin5 of CN1 send data to PBX receive data from PBX send data to PBX receive data from PBX 5 6 4 Between H and L Communication waveform 2 Pin4 of T1 Communication waveform 1 Pin1 to 5 of CN1 Communication waveform ...

Page 51: ...data from DPT of DXDP Pin8 of IC4 Pin9 of IC4 Pin11 of IC4 Pin9 of IC4 Pin8 of IC4 Pin52 of IC5 8 9 7 Pin52 of IC5 Communication waveform about send Pin11 of IC4 Communication waveform about receive Pin61 of IC5 Communication waveform ...

Page 52: ...30 25 C43 C116 R33R32 C134 R24 R12 C122 C36 MIC2 AG2 CN8 CN6 1 2 SP2 E6 B1 A1 9 1 F7 F6 Q16 C113 AG3 E7 F4 MIC3 E3 A C35 C33 SP3 SP3 C27 1 4 1 2 A3 3V C32 C142 IC7 IC2 1 1 8 C42 C41 C125 C45 R35 C136 R31 R125 R27 C39 R30 R126 C21 C146 C124 IC4 12 13 24 1 R129 C55 C56 R56 R94 Q3 Q4 Q5 Q6 Q7 C73 R54 R110 C57 C82 JK4 R132 R122 C67 R55 C70 C59 C111 C65 C76 R42 C137 C58 C62 C61 C60 R103 R37 R49 R50 C12...

Page 53: ...SW107 CO23 SW106 CO22 SW105 CO21 SW104 CO20 SW103 CO19 SW115 CO17 SW114 CO16 SW113 CO15 SW112 CO14 SW111 CO13 SW116 CO18 CO9 CO8 CO7 CO6 CO5 AUTO STORE AUTO ANSWER CONF SW138 SW142 SW139 INTERCOM 1 SW141 4 SW117 7 SW109 8 SW101 9 SW118 SW110 0 SW102 SW133 5 SW125 6 SW134 2 SW126 SW124 SW132 CN4 4 1 SW131 CO4 SW130 CO3 SW129 CO2 SW128 CO1 SW127 3 S1 S2 S3 SW143 SW143_2 S4 D112 D111 D110 D109 D124 D...

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