Panasonic KX-TD7685 - Wireless Digital Phone Service Manual Download Page 61

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KX-TD7685

2/4

4/4

1/4

3/4

KX-TD7685 SCHEMA

TIC DIA

GRAM (4/4)

(22)

(23)

(24)

(r)

(t)

(s)

(u)

(w)

(v)

D306

D305

CN301

BATT

D304

R306

120

R309

10K

C304

Z0.1u

C305

Z0.1u

R312

R313

680

C307

Z0.1

R310

10K

R311

C306

Z0.1

C302

Z0.1u

C301

10V KB 1u

C303

Z0.1u

R302

R301

120

D301

D302

D2.7V

C313

10V KB 1u

C314

Z0.1u

C315

C316

R319

120

Q301

4.7K(B),4.7K(B-E)

Q302

4.7K(B),4.7K(B-E)

Q303

X101

6MHz

CK12

TP71

TP72

TP99

TP101

TP102

TP103

TP104

TP105

TP106

TP107

TP108

TP109

TP114

TP115

TP116

TP117

TP118

TP119

TP121

TP122

TP139

TP140

5.0V

D307

R307

390

TP141

D317

D318

5.0V

L301

C312

1000p

C308

0.1u

BATT

Q304

4.7K

D2.7V

TP100

TP112

CK7

IC303

GND

VCC

IC302

VOUT

CF1+

VIN

FSEL

VSEL

CF2-

GND

CF1-

CF2+

C309

10V 1u

C311

10V 1u

R315

10k

R308

R304

C310

Z1u

C317

Z1u

IC301

IRQ

IFSEL

SYNC

AVDD

TESTA5

TESTA6

TESTA7

VREFL

VREFR

AOUTL

AOUTR

AGND

PTST2

ILE

D7/TST0

D6/TST0

D5/ERQ

D4/SRQ

D3/ARQ

D2/SCLK

DGND24

D1/SDOUT

D0/SDIN

27VDDIO

28DVDD

29PTSTINT1

30CLOCK

31P0

32P1

33P2

34P3

35P4

36PTST1

VIB

DrvGND

PANEL

PWM0

PWM1

PWM2

PWM3

DVD0

DGND45

TEST1

PTSTINT2

RST

R320

560

R321

560

R322

560

R323

560

D310

D311

D309

D308

VIBRATOR

GREEN

RED

RINGING/CHARGING

CHARGE COMPLETE

Summary of Contents for KX-TD7685 - Wireless Digital Phone

Page 1: ... 2008 Panasonic Communications Co Ltd All rights reserved Unauthorized copying and distribu tion is a violation of law ORDER NO KMS0802461CE F19 DECT6 0 Portable Station KX TD7685 for U S A ...

Page 2: ... Ringer Trouble Handset 33 9 6 Key Click Sound Trouble Handset 34 9 7 No Link Trouble 35 9 8 No Voice Transmission 36 9 9 No Voice Reception 37 9 10 Password Trouble 38 9 11 Things to Do After Replacing Main Board BBIC 39 10 Disassembly and Assembly Instructions 40 10 1 Handset 40 10 2 Charger 42 11 Measurements and Adjustments 43 11 1 Adjustment for Main Part Handset 43 11 2 Adjustment for RF Par...

Page 3: ...ith the same or equivalent type recommended by the manufacturer Dispose of used batteries according to the manufacture s Instructions 2 Warning 2 1 About Lead Free Solder PbF Pb free Note In the information below Pb the symbol for lead in the periodic table of elements will refer to standard solder or solder that con tains lead We will use PbF when discussing the lead free solder used in our manuf...

Page 4: ... 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 3 Specifications ...

Page 5: ...5 KX TD7685 4 Technical Descriptions 4 1 Block Diagram Handset ...

Page 6: ...t driver with PWM RF Module IC601 PLL Oscillator Detector Compress Expander Amplifier for reception Amplifier for transmission Power control 4 2 2 Power Supply Circuit Reset Circuit When power on the Handset the voltage is as follows BATTERY 3 5 V to 4 2V Battery Q104 1 8V Q105 2 7V The Reset signal generates pin 78 of IC201 and 1 8V 3 1V for IC601 is generated with IC602 5 0V for Key back light a...

Page 7: ...m battery The detected voltage is as follows Battery Low Battery voltage V Batt 3 5V 50mV The BBIC detects this level and starts flashing Power Down Battery voltage V Batt 3 3V 50mV The BBIC detects this level and power down 4 2 5 TX Audio Path Microphone An audio signal from microphone is input to pin 76 MIC of IC201 via headset jack CN404 In IC201 the audio signal is converted from the analog si...

Page 8: ...from pin 68 LSR and pin 69 LSR to the receiver Headset When the headset is inserted a signal to the receiver is cut off and audio signal from pin 68 LSR of IC201 is input to the headset Speakerphone In Speakerphone mode the BBIC IC201 makes pin 1 of IC401 from Low to High And an audio signal from pin 70 LSR_HS of IC201 is sent to a monitor speaker through speaker Amplifier IC IC401 ...

Page 9: ...ols each LED through MIDI IC301 Type of LED LED ON LED OFF IC301 Transistor IC301 Transistor Call Charge indicator LED green D302 pin 34 high Q302 ON pin 34 low Q302 OFF Call Charge indicator LED red D301 pin 33 high Q301 ON pin 33 low Q301 OFF LCD back light LED blue D305 D307 Key back light LED blue D308 D311 pin 31 low Q304 OFF pin 31 high Q304 ON ...

Page 10: ...C201 makes pin 1 of IC401 from low to high 4 2 10 Key Click Sound Circuit When the key is pushed a signal is sent from pin 45 of IC201 to a monitor speaker through speaker Amplifier IC IC401 At this time BBIC IC201 makes pin 1 of IC401 from low to high 4 2 11 Vibrator Circuit BBIC IC201 controls Vibrator through MIDI IC301 Pin 37 VIB of IC301 goes low and Vibrator turns ON ...

Page 11: ...11 KX TD7685 5 Location of Controls and Components 5 1 Handset ...

Page 12: ...12 KX TD7685 ...

Page 13: ...may cause it to become disconnected 6 2 Battery 6 2 1 Battery Installation Insert the battery and close the cover as indicated below 6 2 2 Battery Charge At the time of shipment the battery is not charged Please charge the battery for about 7 hours before using the handset for the first time When the battery has been completely charged the charge indicator will change from red to green It is norma...

Page 14: ...he battery has been fully charged the battery should be replaced Before replacing the battery make sure the low battery warning is displayed then turn off the power to prevent memory loss Replace the battery and charge the new battery for at least 7 hours If you replace the battery before the low battery warnings appears the battery strength icon may display an incorrect reading In this case use t...

Page 15: ...Handset PSZZ1TD7896M 3 Maintenance software for PC PSZZ3TD7896M 7 2 Initial Setting 1 Connect the handset with your PC with the RS 232C cable 2 Copy the Maintenance software FlashProgram exe from Floppy Disk to your PC and double click the FlashProgram exe to start the program Then following screen appears ...

Page 16: ...685 3 Set communication environment Click Config and configure as follows Click OK Selected items will be stored 7 3 Command Reference 7 3 1 Select From Command Menu Example of Operation 1 Click test command tag ...

Page 17: ...17 KX TD7685 2 Click Command menu button and select the command that you want execute in case of test command EPW 3 Set parameters if necessary ...

Page 18: ...DD 4 Set the value 00 0F to the first parameter 5 Click Send button if returned value is OK It succeeded B Test Command RFC clock RFC 1 Click Command menu button 2 Point clock 3 Click RF clock RFC 4 Set 1 ON to the first parameter 5 Click Send button if returned value is OK It succeeded C Test Command frequency trimming SFR 1 Click Command menu button 2 Point clock 3 Click frequency trimming SFR 4...

Page 19: ... EPW 1 Click Command menu button 2 Point memory access 3 Click eeprom write EPW 4 Set parameters as follows First parameter address No 2 byte Second parameter Length 1 10 Hex Third parameter Data 5 Click Send button Returned value is data you wrote H Test Command set modulation SMR 1 Click Command menu button 2 Point RF 3 Click set modulation SMR 4 Set first parameter 25 as a provisional value 5 C...

Page 20: ...is software Version L Test Command eeprom initialize EPD 1 Click Command menu button 2 Point memory access 3 Click eeprom initialize EPD 4 Set the value F to first parameter 5 Click Send button if returned value is OK It succeeded M Test Command memory write WRT 1 Click Command menu button 2 Point memory access 3 Click memory write WRT 4 Set parameters as follows First parameter address No 2 byte ...

Page 21: ...2 Input the command and parameter if necessary directly to the command box Don t set parameter to the parameter box in case of test command WB2 3 Click send button Maintenance Window is generated and transmitted command and parameters are displayed Then receive data from the Base Unit is displayed ...

Page 22: ...4 34 2 Click Send button if returned value is OK It succeeded D Test Command MCW 1 Input the command directly to the command box 2 Click Send button if returned value is OK It succeeded E Test Command BWP 1 Input the command directly to the command box 2 Click Send button if returned value is OK It succeeded F Test Command M2B 1 Input the command and one parameter 0 fixed value directly to the com...

Page 23: ...to the command box Example LOP 1 2 Click Send button if returned value is OK It succeeded J Test Command VIB 1 Input the command and one parameter 0 OFF 1 ON directly to the command box Example VIB 1 2 Click Send button if returned value is OK It succeeded K Test Command PWC 1 Input the command directly to the command box 2 Click Send button if returned value is OK It succeeded L Test Command SLC ...

Page 24: ...tware Upload 8 1 1 Required Equipment 1 Personal Computer with serial port 2 RS232C cable for Handset PSZZ1TD7896M 3 Maintenance software for PC PSZZ3TD7896M 8 1 2 Before Uploading Step1 Run FlashProgram exe Then following screen appears ...

Page 25: ...tion environment Click Config and configure as follows Click OK Selected items will be stored 8 1 3 How To Upload Step 3 Connect Handset and PC with the RS 232C cable Caution COM port on PC should match with the one selected in Step 2 ...

Page 26: ...ower of target KX TD7685 to OFF Press and hold POWER key for 2 seconds 5 3 Keep pressing POWER key until step 5 6 This operation will not turn the power of target to ON If the target s power turns on check following items Then try again from Step 1 A Check the connection of PC and KX TD7685 Handset with RS 232C cable B Check Configuration Refer to Step 2 C Check the RS 232C cable attachment of tar...

Page 27: ...Don t release the POWER key in this step If the POWER key is released uploading will be failed 5 5 Communication check OK If communication check result is OK CRC ok will be displayed If communication check result is NG click cancel Then back to step 5 1 and try uploading again ...

Page 28: ...eral seconds Flash Program Start will be displayed You can release the POWER key in this step 5 7 After uploading completion After uploading is completed Download finished successfully will be displayed Click OK and disconnect the RS 232C cable ...

Page 29: ... the suspected parts check the soldering and resolder or replace the parts if it is necessary 9 1 Power Trouble Handset 9 1 1 Power Does Not Go On Cross Reference Adjustment should be done if IC201 BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC ...

Page 30: ...ed Refer to 9 11 1 When Replacing IC201 BBIC Adjustment should be done if LCD unit is replaced Refer to Section 11 1 6 Adjustment for LCD Contrast 9 2 Battery Charge Trouble Handset 9 2 1 Charge On Cross Reference Adjustment should be done if IC201 BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC ...

Page 31: ...31 KX TD7685 9 2 2 Charge Off Cross Reference Adjustment should be done if IC201 BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC ...

Page 32: ...CD Back Light Cross Reference Adjustment should be done if IC201 BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC 9 3 2 Charging And Ringing LED Cross Reference Adjustment should be done if IC201 BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC ...

Page 33: ...ross Reference Adjustment should be done if IC201 BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC 9 5 Ringer Trouble Handset Cross Reference Adjustment should be done if IC201 BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC ...

Page 34: ...34 KX TD7685 9 6 Key Click Sound Trouble Handset Cross Reference Adjustment should be done if IC201 BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC ...

Page 35: ...35 KX TD7685 9 7 No Link Trouble Cross Reference Adjustment should be done if IC201 BBIC or Main Board is replaced Refer to 9 11 Things to Do After Replacing Main Board BBIC ...

Page 36: ...36 KX TD7685 9 8 No Voice Transmission Cross Reference Adjustment should be done if IC201 BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC ...

Page 37: ...37 KX TD7685 9 9 No Voice Reception 9 9 1 Talk Mode Cross Reference Adjustment should be done if IC201 BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC ...

Page 38: ... BBIC is replaced Refer to 9 11 1 When Replacing IC201 BBIC 9 10 Password Trouble 9 10 1 User Password is forgotten Test command PWC Refer to Section 7 3 2 K set user password to 1234 9 10 2 System Lock Password is forgotten Test command SLC Refer to Section 7 3 2 L unlock the system lock ...

Page 39: ...t Refer to Section 11 1 6 9 Adjustment for modulation Refer to Section 11 2 4 Note If Need Repair 2 appears on LCD Display execute the below command 1 Test command MCW Refer to Section 7 3 2 D 2 Test command BWP Refer to Section 7 3 2 E 3 Test command M2B Refer to Section 7 3 2 F 9 11 2 When Replacing A Main Board 1 Solder the JP601 2 Write ID and Registration Refer to Section 7 3 1 I 3 Adjustment...

Page 40: ... 10 1 Handset 1 Remove the Battery Cover sliding it in the direction of the arrow 2 Take the Battery out of the Rear Cabinet 3 Remove two Screws A from the Rear Cabinet 4 Unfasten the Front Cabinet Rear Cabinet after rotating in the direction of the arrow ...

Page 41: ...41 KX TD7685 5 Remove three Screws B and the Charge Terminal R L from the Front Cabinet 6 Remove the Main Board from the Front Cabinet Caution Remove insert the FFC of LCD according to the illustration ...

Page 42: ...42 KX TD7685 10 2 Charger 1 Remove the two screws C and remove the Bottom Cabinet 2 Remove the Main Board from the Top Cabinet ...

Page 43: ... VDD Note Accuracy of voltage 1 8V is important Cross Reference VDD control VDD 7 3 1 Select From Command Menu _ A Item Service part No SPECIFICATION COMMENT Instrument Frequency counter none PCC has VP 4546A National Use the instrument with the same specification as VP 4546A Measurement frequency 10 368000MHz 10Hz DC power supply none 3 5V 3 8V 500mA for Handset Oscillator none PCC has LAG 120B L...

Page 44: ...quency is important Cross Reference RF clock RFC frequency trimming SFR 7 3 1 Select From Command Menu_ B C 11 1 5 Adjustment for Battery Low Detection 1 Supply voltage DC3 5V to Handset 2 Turn off all LEDs and then wait for 3 seconds 3 Run Test command AD1 Return value is XX 4 Run Test command WB2 XX 5 Run Test command WB4 XX 6 Run Test command WB3 YY YY XX 09 hex Example XX 2F YY 26 Cross Refere...

Page 45: ...trast and press OK refer to Fig 3 note The value is different for every handset 5 Adjustment of upper limit refer to Fig 4 Press joystick left Become light Press joystick right Become dark 6 Press OK push into the joystick 7 Press joystick down one time to select lower limit refer to Fig 5 note The value is different for every hand 8 Check the contrast of lower limit 9 Press power key and exit LCD...

Page 46: ... than 3 8V to cabinet cover of Handset 7 Press the Power Key for 3 seconds to turn on Handset Item Service part No SPECIFICATION COMMENT Instrument DIGITAL RADIO TESTER none PCC has CTS 60 ROHDE SCHWARZ Personal Computer with FLASH PROGRAM none CPU more than 400MHz Memory more than 64kB HD available space 100MB OS Windows 98 2000 XP Other with serial port Tool RS 232C cable PSZZ1TD7896M Serial cab...

Page 47: ...47 KX TD7685 8 DIGITAL RADIO TESTER CTS60 Configration 1 PP type Default PP type edit QMUX 03060306 2 RF Modulation Signal FDECT BUST FIG31 3 Carrier No Offset 18 ...

Page 48: ...48 KX TD7685 9 DIGITAL RADIO TESTER CTS60 set up Test Mode Manual GAP Mode Off DUT Portable Part ...

Page 49: ...f CTS60 to 62 0dBm on the config 8 Run the test command loopback mode PP to the handset Input RFPI 0102030405 and then send command 9 Press connect on the CTS60 10 Run the test command RF RSSI read RSS Read the returned value YY 11 Run test command eeprom write EPW Input address 0068 length 2 and data XXYY and then send command Data XXYY is returned value at No 5 and No 7 Cross Reference loopback ...

Page 50: ... the CTS60 5 Confirm the value of Max Pos Neg B field modulation Make sure it is from 370kHz to 380kHz 6 Run the test command set modulation SMR if it is out of specification at No 5 Adjust this value until the modulation reaches a value closest to 375kHz Cross Reference loopback mode PP set modulation SMR eeprom write SMR 7 3 1 Select from Command Menu_ E F G Dummy Slot 0 Dummy Carrier 0 Traffic ...

Page 51: ... loopback mode PP to the handset Input RFPI 0102030405 and then send command 4 Press connect on the CTS60 5 Press BER on the CTS60 6 Adjust RF Level to 88 dBm on the CTS60 7 Make sure BER is 0 ppm Cross Reference loopback mode PP 7 3 1 Select from Command Menu_ E Dummy Slot 0 Dummy Carrier 0 Traffic Slot 2 Traffic Carrier 2 RF Level 73 0dBm Carrier No Offset 18 Mode Loopback RFPI 0102030405 ...

Page 52: ...tion 3 Run the test command loopback mode PP to the handset Input RFPI 0102030405 and then send command 4 Press connect on the CTS60 5 Make sure NTP is from 15 dBm to 21 dBm Cross Reference loopback mode PP 7 3 1 Select from Command Menu_ E Dummy Slot 0 Dummy Carrier 0 Traffic Slot 2 Traffic Carrier 2 RF Level 73 0dBm Carrier No Offset 18 Mode Loopback RFPI 0102030405 ...

Page 53: ...ion 3 Run the test command loopback mode PP to the handset Input RFPI 0102030405 and then send command 4 Press connect on the CTS60 5 Make sure Freq Offset is within 50 kHz Cross Reference loopback mode PP 7 3 1 Select from Command Menu_ E Dummy Slot 0 Dummy Carrier 0 Traffic Slot 2 Traffic Carrier 2 RF Level 73 0dBm Carrier No Offset 18 Mode Loopback RFPI 0102030405 ...

Page 54: ...emove the co axial cable for radio signal measurement from P C B 3 Solder the JP601 onto the P C B 4 Put the cabinet cover back on 5 Set the battery then close the battery cover 11 3 Frequency Table Tx Frequency Rx Frequency channel frequency MHz 00 1928 448 01 1926 720 02 1924 992 03 1923 264 04 1921 536 ...

Page 55: ...55 KX TD7685 12 Miscellaneous 12 1 Terminal Guide of ICs Transistors and diodes 12 1 1 Handset 12 1 2 Charger ...

Page 56: ...rd when cutting the pins with a cutter 2 Make a few cuts into the joint between the IC and its pins first and then cut off the pins thoroughly 3 While the solder melts remove it together with the IC pins When you attach a new IC to the board remove all solder left on the land with some tools like a soldering wire If some solder is left at the joint on the board the new IC will not be attached prop...

Page 57: ...57 KX TD7685 MEMO ...

Page 58: ... TP45 TP46 TP47 TP48 TP50 TP51 TP52 TP55 TP56 TP57 TP70 TP10 TP138 C614 1 5p RF_GND R609 0 R604 0 R216 470K R217 270K C103 Z1u C108 6 3V 220u FB601 0 R611 47K C613 10V KB 1u BATT RF_GND R612 0 C122 6 3V KB 10u C102 Z0 1u TP49 R221 0 R222 0 IC201 1 P3 7 PD7 2 P3 1 PD1 3 P3 5 PD5 4 P3 4 PD4 5 P3 3 PD3 6 P3 2 PD2 7 VDD7 8 VSS8 9 RFCLK 10 VDDRF 11 VSSRF 12 XTAL 13 CAP 14 AVS 15 AVD 16 RSSI 17 RDI 18 C...

Page 59: ...8 SW13 0 SW11 SOFT_A SW02 5 SW03 SW01 TALK C217 16V KB 1u C221 16V KB 0 47u C222 16V KB 0 47u C223 6 3V KB 0 47u C224 6 3V KB 0 47u C225 16V KB 0 47u SW22 9 SW21 1 SW23 D2 7V C215 Z0 1u D201 NC D202 NC C219 6 3V KB 1u C216 10V KB 1u TP20 TP21 TP22 TP23 TP24 TP25 TP58 TP125 TP126 TP127 TP128 TP129 TP130 TP131 TP132 TP133 TP134 CN405 20 1 19 2 18 3 17 4 16 5 15 6 14 7 13 8 12 9 11 10 10 11 9 12 8 13...

Page 60: ...F20K AG AG AG AG AG IC401 1 CD 2 VREF 3 VIN 4 VIN 5 VOUT1 6 VCC 7 GND 8 VOUT2 Q104 E C B Q105 E C B CN404 HEADSET_JACK 1 2 3 4 5 CK5 CK6 CK8 CK9 TP12 TP38 TP39 TP73 TP74 TP75 TP76 TP78 TP79 TP80 TP81 TP82 TP83 TP84 TP85 TP86 TP88 TP89 TP90 TP98 TP11 TP136 TP137 C429 D403 D404 C115 10p C425 6 3V KB 22u C418 6 3V KB 10u AG C434 NC C435 NC C436 C426 10p C424 6 3V KB 22u CN403 1 2 1 2 C420 K0 1u C451 ...

Page 61: ... NC D318 NC 5 0V L301 C312 1000p C308 0 1u BATT Q304 4 7K D2 7V TP100 TP112 CK7 IC303 1 1A 2 3Y 3 2A 4 GND 5 2Y 6 3A 7 1Y 8 VCC IC302 1 VOUT 2 CF1 3 VIN 4 FSEL 5 VSEL 6 EN 7 CF2 8 GND 9 CF1 10 CF2 C309 10V 1u C311 10V 1u R315 10k R308 27 R304 27 C310 Z1u C317 Z1u IC301 1 IRQ 2 IFSEL 3 SYNC 4 AVDD 5 TESTA5 6 TESTA6 7 TESTA7 8 VREFL 9 VREFR 10 AOUTL 11 AOUTR 12 AGND 13 PTST2 14 ILE 15 CS 16 RD 17 WR...

Page 62: ...62 KX TD7685 13 2 Charger R1 120 R2 3 9 C1 Z0 1U D1 C2 M0 1U Q1 Q2 C4 NC C5 NC JT1 JT2 CK1 CK3 CK4 CK5 CK2 R3 0 R4 0 CK6 CN1 1 2 C3 16V 100U R5 47 L1 DC6 5V 500mA KX TD7685 CHARGER ...

Page 63: ...227 R221 C201 L201 C229 C228 C203 C231 R218 IC201 D203 R108 C122 C106 C123 CK3 D102 R117 C110 R111 C109 Q104 R433 R222 C214 R110 C412 C212 C210 C204 C211 C213 C420 C422 R410 R409 R411 C416 C417 C418 X100 R115 C114 R417 C103 C452 C423 R412 C435 L102 C102 D304 CN301 D103 Q103 Q102 Q101 R103 L101 R101 R118 CK1 3 CK14 1 JTAG URX 40 41 60 1 20 21 GND UTX SYRI 1 5 4 3 2 3 1 W 6 10 1 CK13 B R CK5 CK7 CK6...

Page 64: ...64 KX TD7685 14 2 Charger Board CN1 Q1 C3 PbF PSUP1645Z A KX TD7685 COMPONENT VIEW KX TD7685 BOTTOM VIEW CK6 L1 R1 C1 CK1 CK2 CK3 D1 Q2 RED BLK R2 C5 C2 C4 CK4 CK5 R5 R3 R4 PbF PSUP1645Z A ...

Page 65: ...formation of Schematic Diagram Note 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 ...

Page 66: ...e open 19 TDO O TXDA RF TX Data 20 LE O SYEN RF PLL control signal 21 SO O SYDA RF PLL control signal 22 SK O SYCL RF PLL control signal 23 DAC ADC2 I JACK DETECTION 24 P3 6 PD6 I Interrupt request input 1 IRQ from IC301 25 UTX P0 0 O Pull up Built in UTX For maintenance 26 URX P0 1 I URX For maintenance 27 JTIO P0 2 O Pull up Built in JTAG For maintenance 28 PCM_FSC1 P0 3 O Pull up Built in COL1 ...

Page 67: ...VBAT3 RINGING I VBAT3 57 DC_stab O Not in use open 58 DC_Sense I Not in use GND 59 AVS_sense I AVS_sense Charge current measurement 60 ADC3 I ADC3 Charge current measurement 61 LDO1_sense I LDO1_sense 2 7V control signal 62 LDO1_CTRL O LDO1_CTRL 2 7V control signal 63 LDO2_CTRL O LDO2_CTRL 1 8V control signal 64 VBAT2 I VBAT2 65 VBAT1 I Not in use GND 66 AVS2 Ground 67 AVD2 1 8V supply for core 68...

Page 68: ...equest output 1 IRQ to IC201 21 D4 SRQ O Interrupt request output 1 IRQ to IC201 22 D3 ARQ O Not in use open 23 D2 SCLK I Sync clock input Sync clock 1 152MHz from IC201 24 DGND Ground 25 D1 SDOUT O Not in use GND 26 D0 SDIN I Serial Data input Input serial data from IC201 27 VDDIO 2 7V supply 28 DVDD 2 7V supply 29 PTESTIN1 I Not in use GND 30 CLOCK I Master clock input 6 000MHz 31 P0 O Pull up B...

Page 69: ...69 KX TD7685 16 2 Cabinet and Electrical Parts Location 16 2 1 Handset ...

Page 70: ...70 KX TD7685 16 2 2 Charger ...

Page 71: ...71 KX TD7685 16 3 Accessories and Packing Materials ...

Page 72: ...DY ABS 94HB 7 PQGP10232Z LCD LENS ABS 94HB 8 PQHE10141Z LCD SPONGE 9 PSSX1037Z RUBBER KEY 10 PQBC10381Z1 PUSH BUTTON S 11 PQJT10205Z TERMINAL R 12 PQJT10204Z TERMINAL L 13 PSHG1287Z RUBBER SPACER 14 PSHR1364Z SPEAKER HOLDER ABS 94HB 15 L0AD02A00010 SPEAKER 16 PQHG10666Z SPACER RUBBER SHEET 17 PSHS1052Z SPEAKER NET 18 PSJC1008Z BATTERY TERMINAL 19 PSKE1083Z3 E P CAP S 20 PSKF1127Y1 CABINET COVER AB...

Page 73: ... C418 F1J0J106A004 10 C419 F1G1H100A420 10p C420 ECUV1C104KBV 0 1 C422 ECUE1H070DCQ 7p S C423 F1G1H100A420 10p S Ref No Part No Part Name Description Remarks C424 F1J0J2260002 22 C425 F1J0J2260002 22 C426 ECUV1H100DCV 10p C428 ECUE1H070DCQ 7p S C432 ECJ1VB0J225 2 2 C451 ECUV1C104KBV 0 1 C453 F1G1H100A420 10p C454 F1G1H100A420 10p C455 F1G1H100A420 10p C456 F1J0J2260002 22 C601 ECJ0EC1H0R5B 0 5 C60...

Page 74: ...K5H312200002 INCIRCUIT PROTECTOR Ref No Part No Part Name Description Remarks 100 PSWETD7685M CHARGER ASS Y RTL 100 1 PSGG1023Z3 GRILLE ABS 94HB 100 2 PSKM1127Z3 CABINET BODY PS 49HB 100 3 PQKE10356Z1 CHARGER TERMINAL CASE POM 94HB 100 4 PQJT10206Z CHARGER TERMINAL 100 5 PQHX10991Z CUSHION 100 6 PQMH10426Y WEIGHT 100 7 PQYF10563YD CABINET COVER ABS 94HB 100 8 PQHG316Z FOOT RUBBER PARTS 100 9 PSYET...

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