ORDER NO. KM40206883C3

Telephone Equipment

KX-TC1468LBB

900MHz Cordless Phone
Black Version (for Brazil)
2002 Kyushu Matsushita Electric Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.

CONTENTS

1 STANDARD BATTERY LIFE 1.1. Recharge 1.2. Battery Information 2 LOCATION OF CONTROLS 2.1. Base unit 2.2. Handset 2.3. Battery Replacement 3 CONNECTIONS 3.1. Adding Another Phone 4 OPERATIONS 4.1. Making Calls 4.2. Answering Calls 5 DISASSEMBLY INSTRUCUTIONS 6 HOW TO REMOVE TEL JACK 7 TROUBLESHOOTING GUIDE 7.1. Check Power 7.2. Bell Reception 7.3. Check Battery Charge 7.4. Check Link 7.5. Check Handset Transmission 7.6. Check Handset Reception 8 ADJUSTMENTS (BASE UNIT) 8.1. Test Mode Flow Chart (Base Unit) 8.2. Adjustment 8.3. Adjustment Standard (Base Unit) 9 ADJUSTMENTS (HANDSET) 9.1. Test Mode Flow Chart (Handset) 9.2. Adjustment 9.3. Adjustment (Handset) 10 FREQUENCY TABLE (MHz) 11 BLOCK DIAGRAM (Base Unit) 12 CIRCUIT OPERATION 12.1. Outline 12.2. Power Supply Circuit 12.3. Reset Circuit 12.4. Charge Circuit 12.5. Telephone Line Interface 12.6. Transmitter/Receiver 12.7. Signal Route 13 BLOCK DIAGRAM (Handset) 14 CIRCUIT OPERATION (HANDSET) 14.1. Outline 14.2. Reset Circuit/Charge Circuit 14.3. Battery Low / Power Down Detector
15 HOW TO REPLACE FLAT PACKAGE IC 15.1. Preparation 15.2. Procedure 15.3. Modification Procedure of Bridge 16 CPU DATA (Base Unit) 16.1. IC3 16.2. Digital Security Coding System 17 CPU DATA (Handset) 17.1. UEXPLANATION OF IC TERMINALS (RF Unit) 18.1. IC1
23.2. Handset 23.3. Accessories and Packing Materials 24 FOR SCHEMATIC DIAGRAM 24.1. Base Unit 24.2. Handset 25 SCHEMATIC DIAGRAM (Base Unit) 25.1. Main 25.2. RF Module 26 SCHEMATIC DIAGRAM (Handset) 26.1. Main 26.2. RF Module 27 CIRCUIT BOARD (Base Unit) 27.1. Main (Component View) 27.2. Main (Flow Solder Side View) 27.3. Locator (Component View) 27.4. Locator (Flow Solder Side View) 27.5. RF Module 28 CIRCUIT BOARD (Handset) 28.1. Main (Component View) 28.2. Main (Flow Solder Side View) 28.3. RF Module
19 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT) 20 CABINET AND ELECTRICAL PARTS LOCATION (HANDSET) ACCESSORIES AND PACKING MATERIALS 22.1. Base Unit 22.2. Handset 23 REPLACEMENT PARTS LIST 23.1. Base Unit 22 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES

1 STANDARD BATTERY LIFE

1.1. Recharge

Battery Information

Operation While in use (TALK) While not in use (Standby) Operating time Up to about 5 hours Up to about 5 days
After your Panasonic battery is fully charged:
The battery operating time may vary depending on usage conditions and ambient temperature. Clean the handset and the base unit charge contacts with a soft, dry cloth. Clean if the unit is subject to grease, dust or high humidity. Otherwise the battery may not charge properly. If the battery is fully charged, you do not have to place the handset on the base unit until the IN USE indicator flashes. This will maximize the battery life. The battery cannot be overcharged.

2 LOCATION OF CONTROLS

2.1. Base unit

Handset

Battery Replacement

3 CONNECTIONS

USE ONLY WITH Panasonic AC ADAPTOR PQWATC1468LB. The AC adaptor must remain connected at all times. (It is normal for the adaptor to feel warm during use.)

Adding Another Phone

This unit will not function during a power failure. To connect a standard telephone on the same line, use a T-adaptor.

4 OPERATIONS

4.1. Making Calls

Answering Calls

5 DISASSEMBLY INSTRUCUTIONS

Show in Fig. 3 4

To remove. Lower Cabinet Locator P.C.Board RF P.C.Board Main P.C.Board
Remove. Screws (2.6 8).. (A) 4 Screws (2.3 6).. (B) 4 Locator P.C.Board Screws (2 6).. (C) 3 RF P.C.Board Screws (2.3 6).. (D) 4 Main P.C.Board

Show in Fig. 7 8

To remove. Rear Cabinet Antenna RF P.C.Board Main P.C.Board
Remove. Battery compartment cover. Screws (2.6 8).(E) 2 Screw (2.6 8).(F) 1 Screws (2 6).(G) 2 RF P.C.Board. Screws (2 6).(H) 2 Main P.C.Board

6 HOW TO REMOVE TEL JACK

1. Keep 2 hooks for TEL JACK fixing open in the direction of arrow 1, then pull the top of TEL JACK forward as shown arrow 2 until the hooks click. (Refer to Fig. 1.) 2. Remove TEL JACK pulling just above in the direction of arrow 3. (Refer to Fig. 2.)

7 TROUBLESHOOTING GUIDE

Cross Reference: Check Power (P.15) Bell Reception (P.16) Check Battery Charge (P.17) Check Link (P.18) Check Handset Transmission (P.20) Check Handset Reception (P.20)

Check Power

Cross Reference: Reset Circuit (P.32) Power Supply Circuit (P.31) ** : CONNECTIONS (P.7)

Note: CPU: IC3

Cross Reference: Charge Circuit (P.33)

Note: CPU: U1

* : Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.58) or CIRCUIT BOARD (Handset) (P.62)

Bell Reception

Cross Reference: Telephone Line Interface (P.34)

Note: CPU : IC3

Check Battery Charge
Cross Reference: Charge Circuit (P.33) Power Supply Circuit (P.31) ** : CONNECTIONS (P.7)
Cross Reference: Reset Circuit/Charge Circuit (P.37)
*: Each measurement points are shown in CIRCUIT BOARD (Base Unit) (P.58) or CIRCUIT BOARD (Handset) (P.62)

Check Link

**: Refer to Adjustment (P.22)
Note: CPU: IC3 RF IC: IC1
**: Refer to Adjustment (P.26).

Note: CPU: U1 RF IC: IC1

*: Each measurement points are shown in RF Module (P.64)
Check Handset Transmission
Cross Reference: Signal Route (P.35)

Check Handset Reception

8 ADJUSTMENTS (BASE UNIT)
If your unit have below symptoms, adjust or confirm each item using remedy column from the table.
Symptom The base unit dose not respond to a call from handset. The base unit dose not transmit or the transmit frequency is off. The transmit frequency is off. The transmit power output is low, and the operating distance between the base unit and the handset is less than normal. The reception sensitivity of base unit is low with noise. The transmit level is high or low. The reception level is high or low. The unit does not link. Make Make Make Make Make Make Make Make adjustments adjustments confirmation confirmation confirmation confirmation adjustments confirmation Remedy* in item (A) in item (B) in item (C) in item (D) in item (E) in item (F) in item (G) in item (H)
*: Refer to Adjustment (P.22).
Test Mode Flow Chart (Base Unit)
The operation-flow of Test mode and main check items are shown below.
Note: **: Refer to the above table.

Adjustment

Adjustment Items Test Mode Adjustment Point L502 L503 VC1 T5 Check or Replace Parts Adjust L502 so that the reading of the Digital Voltmeter is 1.75V 0.2V. IC1, L502, (at TP808) VD501 Adjust L503 so that the reading of the Digital Voltmeter is 1.8V 0.15V. IC1, (at TP809) VD502, L503 Adjustment VC1 so that the reading of the frequency counter is 1ch Freq. IC1 (902.1MHz) 9KHz at the antenna. Confirm so that the reading of the RF VTVM is -7 2dBm. (at TP510) IC1, Q509, Q510, FL501, L503 1. Apply -107dBm output from S.S.G. (modulation frequency 1KHz, dev. FL501, 0KHz). CF501, IC1 2. Confirm that the distortion reading of Audio Analyzer is less than 25%. 1. Apply -60dBm output from S.S.G. (modulation frequency 1KHz, dev. IC2 25KHz). 2. Confirm that the reading of Audio Analyzer is -20 1dBm (600 load). 1. Input via loop simulator 1.0KHz, -10dBm (measured at T-R) signal. 2. Confirm so that the reading of FM Deviation Meter is 25KHz 1KHz. Hold the Locator key for 5 seconds to enter to RSSI test. 1. Measure the SSG output level when the SIG_OUT changes from Low to High. 2. Confirm that the SSG output level is -70+10/-15dBm. Confirm for 65 10KHz FM Deviation Meter reading IC1, VD502 IC1, FL501 *Procedure

Adjustment Items Test Mode (A) TX VCO (B) RX VCO (C) TX Frequency Adjustment (D) TX Power Confirmation (E) RX Sensitivity Confirmation (SP out) (F) RSSI Confirmation Stand-by Stand-by Stand-by Stand-by
(G) Speaker Output Level confirmation (H) Mic Modulation Factor (I) Data Modulation Confirmation
The connections of adjustment equipment are as shown in Adjustment (Handset) (P.27). SSG Frequency: 902.1 MHz

Adjustment (Handset)

(Main, component View)
DC Power Supply (Battery)
FM Deviation Meter Spectrum Analyzer Frequency Counter TP510

(H), (I) (D) (C)

TP809 (TXVCO) D.M. (A) TP808 (RXVCO)

D.M. (B)

SIG_OUT

Audio Analyzer (E)

GND Oscillo scope (G)

MIC_IN AF Generator

10 FREQUENCY TABLE (MHz)
Channel BASE UNIT Transmit Frequency Receive Frequency 902.10 925.90 902.15 925.95 902.20 926.00 902.25 926.05 902.30 926.10 902.35 926.15 902.40 926.20 902.45 926.25 902.50 926.30 902.55 926.35 902.60 926.40 902.65 926.45 902.70 926.50 902.75 926.55 902.80 926.60 902.85 926.65 902.90 926.70 902.95 926.75 903.00 926.80 903.05 926.85 903.10 926.90 903.15 926.95 903.20 927.00 903.25 927.05 903.30 927.10 903.35 927.15 903.40 927.20 903.45 927.25 903.50 927.30 903.55 927.35 903.60 927.40 903.65 927.45 903.70 927.50 903.75 927.55 903.80 927.60 903.85 927.65 903.90 927.70 903.95 927.75 904.00 927.80 904.05 927.85 HANDSET Transmit Frequency Receive Frequency 925.90 902.10 925.95 902.15 926.00 902.20 926.05 902.25 926.10 902.30 926.15 902.35 926.20 902.40 926.25 902.45 926.30 902.50 926.35 902.55 926.40 902.60 926.45 902.65 926.50 902.70 926.55 902.75 926.60 902.80 926.65 902.85 926.70 902.90 926.75 902.95 926.80 903.00 926.85 903.05 926.90 903.10 926.95 903.15 927.00 903.20 927.05 903.25 927.10 903.30 927.15 903.35 927.20 903.40 927.25 903.45 927.30 903.50 927.35 903.55 927.40 903.60 927.45 903.65 927.50 903.70 927.55 903.75 927.60 903.80 927.65 903.85 927.70 903.90 927.75 903.95 927.80 904.00 927.85 904.05

K X -T

11 BLOCK DIAGRAM (Base Unit)

8 L B B

RX-VCC

RF Module

LNA: Low Noise Amp Q555, Q556 MIXER Q37 IF FILTER CF501 DUPLEXER FL501 RX_LO QDet 1st IF IN COMP 36 EXP MIC_IN MIC_IN 15 receive transmit

Q1, Q4 DTMF ALC IC2C-D T4 AUDIO TRANSFORMER COM_STB COM_DATA COM_CLK 4

ANTENNA

Filter

48 TX_PD 3 SF_OUT

SIG_OUT RSSI 43

SIDE TONE NETWORK

Tip VDR1 RL1 F1 Ring Q3 RELAY CTRL

13 D_OUT

52 OSCI

Doubler/Buffer Q510

TX_VCO Q509, VD502

TX AUDIO

REF_CLK 1 X2 4MHz 2 RX_DATA 16 TX_DATA 15

Lnseize 24 RING_DET 26

IC2-A, IC2-B RING DETECTION Q6, Q7 RESET CIRCUIT

IC3 (CPU)

9V Q9 VOLTAGE REGULATOR To H/S

Q2, Q10 CHARGE DETECT

Q8 TX ON/OFF

Tx_PWR 17

RESET CHG_DET 25
KX-TC1468LBB: BLOCK DIAGRAM (BASE UNIT)

12 CIRCUIT OPERATION

12.1. Outline
Base unit consists of the following ICs as shown in BLOCK DIAGRAM. CPU:IC3 Controlling the whole system Forming/analyzing all data signals (ACK, CMD signal etc.) All interfaces (ex: LED, KEY, Detector Circuit (Charge/ Power Down) RF IC:IC1 PLL Oscillator Compress/ Expander Amplifier for transmission and reception Additionally Power Supply Circuit Reset Circuit Charge Circuit Telephone Line Interface Circuit
12.2. Power Supply Circuit
The power supply to the CPU (Digital, Analog) and RF IC from AC Adaptor (+9V) as shown in diagram in Reset Circuit (P.32).

12.3. Reset Circuit

After power supply from AC adaptor, the VDD (5.0V) is input to Q6, Q7 for making reset signal. Refer to the below waveform.

<Fig. 101>

<Fig. 102>

12.4. Charge Circuit

Circuit Operation: When charging the handset on the base unit, the charge current is as follows; DC+(9V) L1 CHG (Base) [CHG1 (Handset) D1 BAT1.Battery.BAT2 (GND) D2 D3 CHG2 (Handset)] CHG2 (Base) L7 ZD11 DC-(GND), In this way, the CPU on both unit detects the fact that the battery is charged.

<Fig. 103>

12.5. Telephone Line Interface
Function: Bell signal detection ON/OFF hook and pulse dial circuit Side tone circuit Bell signal detection and OFF HOOK circuit: In the idle mode, Q3 is open to cut the DC loop current and decrease the ring load. When ring voltage appears at the Tip (T) and Ring (R) leads (When the telephone rings), the AC ring voltage is transferred as follows: T L9 C7 R44 IC2-A, B CPU (Ring DET). [BELL] When the CPU(IC3) detects a ring signal and press the TALK Key onto the handset. Q3 turns on, thus providing an off-hook condition (active DC current flow through the circuit) and the following signal flow is for the loop current. T L9 R52 T4 RLY1 L10 F1 R [OFF HOOK] ON HOOK Circuit: Q3 is open, Q3 connected as to cut the DC loop current via RLY1 and to cut the voice signal. The unit is consequently in an on-hook condition. Pulse Dial Circuit: DSP (Relay) turns Q3 ON/OFF to make the pulse dialing via RLY1. Side Tone Circuit: Basically this circuit prevents the TX signal from feeding back to RX signal. As for this unit, TX signal feed back from IC2 is canceled by AC3 and so on.

12.6. Transmitter/Receiver
Base Unit and Handset are mainly consists of RF (Radio Frequency) IC(IC1) and CPU(IC3). Base Unit and Handset transmit/receive voice signal and data signal through the antenna on carrier frequency. Signal Pass: *Refer to CDL TX/RX in Signal Route (P.35).
12.6.1. Transmitter Block
Circuit Operation: The voice signal input from the TEL LINE interface goes to RF IC(IC1) as shown in BLOCK DIAGRAM (Base Unit) (P.30). And the signal goes through the compressor and SPLATTER FILTER of RF IC, it is output to transmitter circuit. The signal of the data sent to the handset is applied too. The capacitor of VARICAP (:VD502) is changing in accordance with the voice signal from telephone line interface or TX DATA signal from CPU. Therefore, the carrier frequency which is generated by TXVCO will be changing, and Frequency modulated RF signal is generated and amplified by RF AMP (Doubler: Q510). It pass through the Duplexer FL501 and radiated from Antenna. Handset detects the voice signal or data signal in the circuit same as the following explanation of Receiver Block.

12.6.2. Receiver Block

Circuit Operation: The signal of 900MHz band (925.9~927.85MHz) which is input from ANT is filtered at FL501 as shown in BLOCK DIAGRAM (Base Unit) (P.30), then it is input to RF IC. The signal input to RF IC is converted through Mixer, IF filter (CF501) and Expander. In short 1st local frequency is mixed with the received RF signal. Then it passes through IF (CF501: 10.7 MHz Intermidiate Frequency) and filtered at F1. The detected signal passes through the expander and Amplifier inside of RF IC to the TEL LINE interface. RX data (from Handset): The data signal from handset (ex: Talk, ACK, COM) is also included in 900 MHz band same as the voice data. After second if filter, the data signal is made square shape by data limiting AMP of the RF IC. RX data is output to CPU (RX Data).

12.7. Signal Route

Each signal route is as follows.
13 BLOCK DIAGRAM (Handset)
MIXER Q512 ANTENNA LNA: Low Noise Amp Q555, Q556 IF FILTER CF1st IF_IN SP OUT SP OUT RECEIVER

46 RX PD

IC1 (RF IC)

MIC_IN 9 MICROPHONE

DUPLEXER

RX_VCO Q506

TX AUDIO 4 SFC 2

REF_CLK

TX_VCO Q509
Key 9 # LOUD RE/PA TALK FLASH OFF CHAN AUTO
Q5 TX ON/OFF Tx VCC Tx_PWR 18 Q2 RX ON/OFF Rx VCC 11 Q4, Q1 Power-down Power-down 5 VDD 3.6V BATTERY R2 0R 27 RESET & CHARGE CIRCUIT 25 CHG_DET RESET Rx_PWR
10 TX_DATA PD-IN RX_DATA 17 R1 - 3

C1 - X1 4MHz VCC

Buzz RINGSW 23

RINGER ON/OFF

Q3, Q6 BUZZER CKT.
KX-TC1468LBB: BLOCK DIAGRAM (HANDSET)
14 CIRCUIT OPERATION (HANDSET)

14.1. Outline

Handset consist of the following ICs as shown in BLOCK DIAGRAM. CPU: U1 All data signals (forming/analyzing ACK or CMD signal*) All interfaces (ex; LED, Key, Buzzer, Detector Circuit, Charge, Battery Low) RAM for keeping the data (CH Number, ID Code, etc.) RF IC:IC1 PLL Oscillator Compress/Expander Amplifier for transmission and reception

14.2. Reset Circuit/Charge Circuit
The power of handset is supplied by battery. Whenever the battery is recharged or inserted, the impulse at CHG1 becomes Reset signal through D11, and sent to CPU. *Refer to Charge Circuit (P.33).

<Fig. 201>

14.3. Battery Low / Power Down Detector
Circuit Operation: Battery Low and Power Down are detected by RF IC which check the voltage from battery. Shortly, every detected blocks are inseide of RF IC. The detected voltage is as follows; Battery Low Battery voltage : V(Batt) < 3.57V The CPU detects this level and IN USE Power Down Battery voltage : V(Batt) < 3.36V The output of RF IC (P-DOWN) becomes low level, then CPU stops working to keep the data (CH number, ID Code, etc.) starts flashing.

<Fig. 202>

15 HOW TO REPLACE FLAT PACKAGE IC

15.1. Preparation

SOLDER Sparkle Solder 115A-1, 115B-1 or Almit Solder KR-19, KR-19RMA Soldering iron Recommended power consumption will be between 30 W to 40 W. Temperature of Copper Rod 662 50F (350 10C) (An expert may handle between 60 W to 80 W iron, but beginner might damage foil by overheating.) Flux HI115 Specific gravity 0.863. (Original flux will be replaced daily.)

15.2. Procedure

1. Temporary fix FLAT PACKAGE IC by soldering on two marked 2 pins.
*Most important matter is accurate setting of IC to the corresponding soldering foil. 2. Apply flux for all pins of FLAT PACKAGE IC.
3. Solder employing specified solder to direction of arrow, as sliding the soldering iron.
15.3. Modification Procedure of Bridge
1. Re-solder slightly on bridged portion. 2. Remove remained solder along pins employing soldering iron as shown in below figure.

16 CPU DATA (Base Unit)

16.1. IC3
Pin Port Name XOUT XIN TEST P67 P66 P65 P64 P63 P62 P61 P60 P77 P76 VSS P75 P74 P73 P72 P17 P16 P15 P14 P13 P12 P11 P10 RESET VDD Label XOUT XIN TEST RSSIN PAGE DTMF5 DTMF4 DTMF3 DTMF2 DTMF1 DTMF0 LEDP1 LEDP2 GND TXDATA TXRFPWR TXPWR RESERVED FLASHOPT COMCLK COMDATA COMSTB RXDATA LSEIZE CHGDET RINGDET RESET VDD Init. I/O O I I I I O O O O O O O O O O O O I O O O I O I I I Description 4MHz crystal oscillator 4MHz crystal oscillator Must be connected to Vss Carrier detect input (combo chip sigout) PAGE KEY recradle control, DTMF out5 DTMF out4 DTMF out3 DTMF out2 DTMF out1 DTMF out0 In-Use LED Flash time option Ground TX path data output TX RF POWER CONTROL TX power control Flash time option Combo chip clock, normal low output Combo chip data, normal low output Combo chip strobe, normal low output RX path data input Line seize control charge detect ring detect Power on reset pulse signal (w/charge reset) Power supply (+5V) Remark

H H H H H H H H H L H H H L L L L H L H H
H: carrier present L: KEY PRESSED

low: on H: 300ms

L: RF POWER OFF L: TX power on H: 600ms, L: 100ms Pull low through 10k

H: seize line L: charge

16.2. Digital Security Coding System
Every time the handset is put on the charging cradle of base unit, a 16-bit digital security code is generated and exchanged between base and handset. The security code is randomly selected amongst 65536 combinations. This is to comply with FCC Part 15.214(d) requirement.

17 CPU DATA (Handset)

17.1. U1
Pin Port XOUT XIN TEST P67 P66 P65 P64 P63 P62 P61 P60 P77 P76 VSS P75 P74 P73 P72 P17 P16 P15 P14 P13 P12 P11 P10 RESET VDD Label XOUT XIN TEST RING_SW/C_MUTE P66 R3 R2 R1 RSSI TX_DATA RX_PWR E_MUTE POW_DWN_IN VSS STB DATA CLK TX_PWR C4 C3 C2 C1 BUZZ RX_DATA CH_DET L_BATT RESET VCC Init I/O O I I I O I I I I I O O I Description 4MHz crystal oscillator 4MHz crystal oscillator Must be connected to Vss Ringer on/off switch Remark

L H H L L L L H H

H: RINGER ON L: RINGER OFF
Keyin 3 Keyin 2 Keyin 1 Carrier detect input (combo chip sigout) TX path data output RX power control for LNA & RX circuit TALK LED Power Down Detect in Ground COMBO STROBE COMBO DATA COMBO CLOCK TX POWER CONTROL Keyout 4, normal low output Keyout 3, normal low output Keyout 2, normal low output Keyout 1, normal low output Beep tone output, normal low output RX DATA INPUT CHARGE DETECT LOW BATTERY DETECT Power supply (battery voltage)
H: carrier present L: RX power on L: LED ON H: L: Detect H: ENABLE

L H H H L L L L H L L L

O O O O O O O O O I I I I

L: TX POWER ON

L: ON CHARGE CRADLE L: BATTERY LOW
18 EXPLANATION OF IC TERMINALS (RF Unit)

18.1. IC1

Pin No. EN CDET SF_OUT SFC2 SFC1 COMP_DC POWERSAVE MIC_OUT MIC_IN BREF PD_OUT VCC2 DOUT GND2 SPOUT2 SPOUT1 SPIN PE ZAP GND3 EXPOUT DIN EDET PRE_OUT PRE_IN DET_OUT NF_IN NF_OUT Pin Description Enable input COMP detection Splatter filter output External splatter filter COMP output COMP output VREF Power Down input Microphone amp output Microphone amp input Audio system reference output Power Down output VCC2 Data amp output Ground 2 SP amp output 1 SP amp output 2 SP amp input Half-Mute detection ZAP write Ground 3 EXP output Data amp input EXP detection Pre-amp output Pre-amp input FM Detector output Noise filter input Noise filter output Pin No. QUAD_IN QUAD_OUT NDET RSSI_DET 2NDIF_IN IFREF1 1STIF_OUT VCC1 1STIF_IN GND1 RXVCC PDL VSS FIN_RX SIGOUT BATTLOW VSSS RXPD PLLREG TX_PD TXVCC3 FIN_TX TXVSS OSCI OSCO DATA CLK Pin Description FM detector input IFamp2 output Noise Detection RSSI Detection IFamp2 input IFamp2 VREF IFamp1 output VCC1 IFamp1 input Ground 1 RX-counter VCC BL, PD threshold selection RX-counter Gnd RX-counter input LD, RSSI, ND output BatteryLow output Logic Gnd RX-phase comparator output Logic Power Source Output TX-phase comparator output TX-counter Vcc TX-counter input TX-counter Gnd Xtal oscillator input Xtal oscillator output1 Xtal oscillator output2 Serial data input Click input

19 CABINET AND ELECTRICAL PARTS LOCATION (BASE UNIT)
20 CABINET AND ELECTRICAL PARTS LOCATION (HANDSET)
21 ACCESSORIES AND PACKING MATERIALS
22 TERMINAL GUIDE OF THE ICs TRANSISTORS AND DIODES

22.1. Base Unit

22.2. Handset
23 REPLACEMENT PARTS LIST
1. RTL (Retention Time Limited) Note: The marking (RTL) indicates that the 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 depends on the type of assembly and the laws governing parts and product retention. At the end of this period, the assembly will no longer be available. 2. Important safety notice Components identified by the mark indicates special characteristics important for safety. When replacing any of these components, only use specified manufactures 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. RESISTORS & CAPACITORS Unless otherwise specified; All resistors are in ohms () K=1000, M=1000k All capacitors are in MICRO FARADS (F)P=F *Type & Wattage of Resistor
23.1.2. Main P.C.Board Parts
Ref. No. PCB1 IC2 IC3 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8 Q9 Q10 D1 D2 D3 D4 D5 D6 AD1 ZD1 ZD10 L1 L10 L6 L7 L8 L9 CN1 CN2 DCG JACK R1 R2 R3 R5 R6 R7 R8 R9 R10 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29 R30 R31 R32 R33 R34 R35 Part No. PQWP11468LBH PQLQZK1R0K PQLQZK680K PQLQZK680K PQLQZK680K PQLQZK1R0K ERDS2TJ220 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJERJ3GEYJ104 ERJ3GEYJ335 PQ4R10XJ471 ERJ3GEYJ104 ERD25TJ154 ERJ3GEYJ472 ERJ3GEYJ223 ERJ3GEYJERJ3GEYJ123 ERJ3GEYJ223 ERJ3GEYJ104 ERJ3GEYJ104 ERJ3GEYJ683 ERJ3GEYJ104 ERJ3GEYJ224 ERJ3GEYJ561 ERD25TJ220 ERJ3GEYJ105 ERJ3GEYJ563 ERJ3GEYJ103 ERJ3GEYJ223 ERJ3GEYJ122 ERJ3GEYJ202 ERJ3GEYJERJ3GEYJ222 ERJ3GEYJ822 Part Name & Description MAIN P.C.BOARD ASSY (RTL) (ICS) IC IC (TRANSISTORS) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) (DIODES) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) (COILS) COIL COIL COIL COIL COIL COIL (CONNECTORS) FLAT CABLE FLAT CABLE JACK JACK (RESISTORS) 22 10k 10k 68k 43k 100k 3.3M 470 100k 150k 4.7k 22k 47k 62k 12k 22k 100k 100k 68k 100k 220k 1M 56k 10k 22k 1.2k 2k 10k 51 2.2k 8.2k Remarks

S S S S S S S S S S S S S S S S S S S S S S

S S S S

23.1. Base Unit
23.1.1. Cabinet and Electrical Parts
11 Ref. No. Part No. 407400020370 Part Name & Description TERMINAL, CHARGE ANTENNA CABINET BODY CABINET COVER PLATE, FIXING LEVER, HOOK BUTTON, HANDSET LOCATOR KEYBOARD SWITCH NAME PLATE SHIELD, RF STAND, WALL MOUNT Remarks S S S S S S S S S S S
Ref. No. R36 R37 R38 R39 R40 R41 R42 R43 R44 R45 R46 R47 R48 R49 R51 R53 R55 R56 R65 R66 R67 R68 R69 R70 R71 R72 R73 R74 R75 R83 R86 R88 R90 R92 R94 R96 R98 R99 AR2 AR3 AR5 AR5 AR5 AR5 AR5 AR5 AR5 AR5 AR5 AR6 AR6 AR6 AR6 ER1 ER2 ER3 ER4 ER5 JR1 JR2 R100 R101 R103 R104 R111 R201 R202 R207 R208 C1 C2 C3
Part No. ERJ3GEYJ363 ERJ3GEYJ392 ERJ3GEYJ104 ERJ3GEYJ103 ERJ3GEYJ274 ERJ3GEYJ104 ERJ3GEYJ684 ERJ3GEYJ514 ERD25TJ206 ERD25TJ206 ERJ3GEYJ514 ERD25TJ101 ERDS2TJ103 ERJ3GEY0R00 ERJ3GEY0R00 ERJ3GEYJ473 ERJ3GEYJ102 ERJ3GEYJ103 ERJ3GEYJ394 ERJ3GEYJ473 ERJ3GEYJ473 ERJ3GEYJ152 ERJ3GEYJERDS2TJ000 ERJ3GEYJ471 ERJ3GEYJ473 ERJ3GEYJ184 ERJ3GEYJ223 ERJ3GEYJ104 ERJ3GEYJ475 ERJ3GEYJ153 ERJ3GEYJ303 ERJ3GEYJ623 ERJ3GEYJ124 ERJ3GEYJ244 ERJ3GEYJ474 ERJ3GEYJ244 ERJ3GEYJ473 ERJ3GEYJ473 ERJ3GEYJ204 ERJ3GEYJ244 ERJ3GEYJ753 ERJ3GEYJ104 ERJ3GEYJ154 ERJ3GEYJ184 ERJ3GEYJ224 ERJ3GEYJ274 ERJ3GEYJ823 ERJ3GEYJ204 ERJ3GEYJ124 ERJ3GEYJ154 ERJ3GEYJ184 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEY0R00 ERJ3GEY0R00 ERJ3GEY0R00 ERJ3GEYJ473 ERJ3GEYJ470 ERJ3GEYJ203 ERJ3GEYJ303 ERJ3GEYJ243 ERJ3GEYJ103 ERJ3GEYJ152 ERJ3GEY0R00 ERJ3GEYJ363 ECUV1H221JCV ECUV1C104ZFV ECUV1C104ZFV
Part Name & Description 36k 3.9k 100k 10k 270k 100k 680k 510k 20M 20M 510k 100 10k 47k 1k 10k 390k 47k 47k 1.5k 10k 470 47k 180k 22k 100k 4.7M 15k 30k 62k 120k 240k 470k 240k 47k 47k 200k 240k 75k 10k 150k 180k 220k 270k 82k 200k 120k 150k 180k 10k 10k 10k 10k 0 47k 47k 20k 30k 24k 10k 1.5k 0 36k (CAPACITORS) 220P 0.1 0.1

Remarks

Ref. No. C4 C5 C6 C7 C8 C9 C10 C12 C15 C24 C28 C29 C30 C31 C32 C34 C35 C60 C62 C63 C64 C65 C66 C73 C74 AE1 EC1 EC2 EC3 EC4 EC7 EC8 EC9 EC10 EC12 EC16 EC17 EC18 F1 RLY1 T4 VC1 VDR1 X2
Part No. ECUV1C224ZFV ECUV1H103KBV 220101681309 ECUV1C104ZFV ECUV1C104ZFV ECUV1C104ZFV ECUV1C104ZFV ECUV1C104ZFV ECUV1H471JCV ECUV1H103KBV ECUV1C474ZFV PQCUV1H104ZF 223271150000 ECUV1H222KBV ECUV1C104ZFV PQCUV1C225ZF ECUV1H103KBV ECUV1H103KBV ECUV1C104ZFV ECUV1H220JCV ECUV1H180JCV ECUV1C104ZFV ECUV1C104ZFV ECEA1AKA221 ECEA1CK101 ECEA1CKA471 ECEA1EU101 ECEA1HU100 ECEA1EU101 ECEA1CKA102 ECEA1HU100 ECEA1AU470 ECEA1HU2R2 ECEA1HU4R7 PQCUV1C105ZF PQCUV1C105ZF 218170900001 260000400017
Part Name & Description 0.22 0.01 0.1 0.01 0.01 0.1 0.1 0.1 0.1 0.1 470P 0.01 0.47 0.1 0.027 0.0022 0.1 2.2 0.01 0.01 0.1 22P 18P 0.1 0.2.2 4.1 (OTHERS) FUSE RELAY TRANS VARIABLE CAPACITOR VARISTOR CRYSTAL OSCILLATOR

S S S S S

23.2. Handset

23.2.1. Cabinet and Electrical Parts
Ref. No. 119 Part No. PQWBTC151022208301 Part Name & Description SPEAKER CABINET BODY CABINET COVER RID, BATTERY ANTENNA PANEL, LCD LEVER, RINGER KEYBOARD SWITCH SHEET, PET SHEET, PET NAME PLATE COVER, SPEAKER RUBBER CUSHION SPACER ADHESIVE TAPE BATTERY, NI-CD TERMINAL, CHARGE TERMINAL, CHARGE Remarks S S S S S S S S S S S S S S S S S S
23.2.2. Main P.C.Board Parts
Ref. Part No. No. PCB100 PQWP11461LAR U1 Q1 Q2 Q3 Q4 Q5 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D16 D17 ZD212560600000 Part Name & Description MAIN P.C.BOARD ASSY (RTL) (IC) IC (TRANSISTORS) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) (DIODES) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) DIODE(SI) (LED) Remarks

S S S S S S S S

23.2.3. RF P.C.Board Parts
Ref. Part No. No. PCB200 PQWP21461LAR IC1 Q506 Q509 Q510 Q512 Q555 Q556 VD501 VD502 CF501 F1 L502 L503 L504 FL501 R1 R2 R3 R4 R5 R6 R8 R9 R10 R11 R12 R15 R16 R17 R501 R503 R504 R509 R510 R511 R512 R513 R514 R517 R518 R520 R522 R524 R531 R533 R534 R536 R537 R541 R543 R544 R551 R561 R562 R569 R571 R577 R578 R585 R593 R604 R606 R609 RERJ3GEYJ153 ERJ3GEY0R00 ERJ3GEYJ273 ERJ3GEYJ104 ERJ3GEYJ104 ERJ3GEYJ152 ERJ3GEYJ474 ERJ3GEYJ274 ERJ3GEYJ682 ERJ3GEYJ513 ERJ3GEYJ273 ERJ3GEYJ154 ERJ3GEYJ753 ERJ3GEYJ223 ERJ3GEYJ184 ERJ3GEYJ330 ERJ3GEYJ102 ERJ3GEYJ102 ERJ3GEYJERJ3GEYJERJ3GEYJ101 ERJ3GEYJ100 ERJ3GEYJ153 ERJ3GEYJ103 ERJ3GEYJ103 ERJ3GEYJ221 ERJ3GEYJ103 ERJ3GEYJ303 ERJ3GEYJ821 ERJ3GEYJ153 ERJ3GEYJ221 ERJ3GEYJ102 ERJ3GEYJ331 ERJ3GEYJ331 ERJ3GEYJ203 ERJ3GEYJ101 ERJ3GEYJ124 ERJ3GEYJ103 ERJ3GEYJ102 ERJ3GEYJ101 ERJ3GEYJ274 ERJ3GEY0R00 ERJ3GEYJ102 ERJ3GEYJ471 ERJ3GEYJ123 ERJ3GEYJ123 ERJ3GEYJ513 Part Name & Description RF P.C.BOARD ASSY (RTL) (IC) IC (TRANSISTORS) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) TRANSISTOR(SI) (DIODES) DIODE(SI) DIODE(SI) (CERAMIC FILTERS) CERAMIC FILTER CERAMIC FILTER (COILS) COIL COIL COIL COIL (RESISTORS) 15k 0 27k 100k 100k 1.5k 470k 270k 6.8k 51k 27k 150k 75k 22k 180k 33 1k 1k 15k 10k 10k 220 10k 30k 820 15k 220 1k 20k 100 120k 10k 1k 100 270k 0 1k 470 12k 12k 51k Remarks

S S S S S S S S S S S S S S S
Ref. No. R611 R619 R621 R622 R16A R16A R16A R16A R16A R16A R16A R16A R16A JR1 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C15 C17 C19 C20 C21 C22 C23 C24 C25 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C39 C500 C502 C503 C504 C519 C521 C526 C527 C530 C533 C534 C535 C536 C537 C538 C539 C541 C542 C543 C545 C546 C549 C554 C556 C559
Part No. ERJ3GEYJ273 ERJ3GEY0R00 ERJ3GEY0R00 ERJ3GEY0R00 ERJ3GEYJ433 ERJ3GEYJ513 ERJ3GEYJ623 ERJ3GEYJ753 ERJ3GEYJ913 ERJ3GEYJ473 ERJ3GEYJ563 ERJ3GEYJ683 ERJ3GEYJ823 ERJ3GEY0R00 ECUV1H470JCV ECUV1C104ZFV ECUV1H473MDV ECUV1H040CCV ECUV1H221JCV ECUV1C104ZFV ECUV1H331JCV ECUV1C104ZFV ECUV1C104ZFV PQCUV1C105ZF PQCUV1C225ZF ECUV1H680JCV ECUV1C104ZFV ECUV1H473MD ECUV1H103KBV ECUV1C104ZFV ECUV1H101JCV ECUV1C104ZFV ECUV1C104ZFV ECUV1C104ZFV ECUV1H151JCV ECUV1C104ZFV ECUV1C104ZFV ECUV1C104ZFV PQCUV1C105ZF ECUV1C104ZFV ECUV1C104ZFV ECUV1C104ZFV ECUV1H681JCV ECUV1H682KBV ECUV1H122KBV ECUV1H010CCV ECUV1H121JCV ECUV1H330JCV ECUV1H102KBV ECUV1H680JCV ECUV1H103KBV ECUV1H040CCV ECUV1H103KBV ECUV1H103KBV ECUV1H030CCV ECUV1H680JCV ECUV1H100DCV PQCUV1C105ZF ECUV1C104ZFV ECUV1H123KBV PQCUV1E104MD PQCUV1C105ZF ECUV1H040CCV ECUV1H102KBV ECUV1H100DCV ECUV1H330JCV ECUV1H030CCV ECUV1H060DCV ECUV1H020CCV ECUV1H040CCV ECUV1H102KBV PQCUV1C224ZF
Part Name & Description 27k 0 43k 51k 62k 75k 91k 47k 56k 68k 82k 0 (CAPACITORS) 47P 0.1 0.047 4P 220P 0.1 330P 0.1 0.2.2 68P 0.1 0.047 0.01 0.1 100P 0.1 0.1 0.1 150P 0.1 0.1 0.0.1 0.1 0.1 680P 0.0068 0.0012 1P 120P 33P 0.001 68P 0.01 4P 0.01 0.01 3P 68P 10P 1 0.1 0.012 0.4P 0.001 10P 33P 3P 6P 2P 4P 0.001 0.22
Ref. No. C560 C561 C562 C563 C564 C565 C566 C567 C568 C569 C570 C571 C572 C573 C574 C575 C578 C582 C583 C586 C590 C591 C592 C593 C595 C597 C598 C599 C602 C604 C605 EC2 ESC10 R13 T1 VR1
Part No. ECUV1H102KBV ECUV1H470JCV ECUV1H220JCV ECUV1H222KBV ECUV1H470JCV ECUV1H020CCV ECUV1H050CCV ECUV1H040CCV ECUV1H102KBV ECUV1H100DCV ECUV1H103KBV ECUV1H680JCV ECUV1H470JCV ECUV1H010CCV ECUV1H060DCV ECUV1H060DCV ECUV1H060DCV ECUV1H040CCV ECUV1H330JCV ECUV1H150JCV ECUV1H030CCV ECUV1H123KBV PQCUV1E104MD ECUV1H680JCV ECUV1H100DCV ECUV1H010CCV ECUV1H020CCV ECUV1H150JCV ECUV1H010CCV ECUV1H222KBV ECUV1H270JCV ECEA1HKA3R3 ECUV1C104ZFV ECUV1H102KBV 250076000000 237472000000
Part Name & Description 0.001 47P 22P 0.0022 47P 2P 5P 4P 0.001 10P 0.01 68P 47P 1P 6P 6P 6P 4P 33P 15P 3P 0.012 0.1 68P 10P 1P 2P 15P 1P 0.0022 27P 3.3 0.1 0.001 (OTHERS) TRANS VARIABLE RESISTOR
23.3. Accessories and Packing Materials
Ref. No. A1 A2 A3 A4 P1 P2 P3 P4 P5 P6 Part No. 651500720600 PQWATC1468LB 435207101000 PQQX13238Y 491300010210 PQPK13645Z Part Name & Description CORD, TELEPHONE AC ADAPTOR CARD, CHARGE INSTRUCTION BOOK ACCESSORY BOX CUSHION CUSHION, ANTENNA PROTECTION COVER (for Unit) PROTECTION COVER Handset) GIFT BOX Remarks

S S S S Base S (for S

24 FOR SCHEMATIC DIAGRAM

24.1. Base Unit

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.
Important Safety Notice: Components identified by ; mark have special characteristics important for safety. When replacing any of these components, use only the manufacturers specified parts.

24.2. Handset

25 SCHEMATIC DIAGRAM (Base Unit)

25.1. Main

IC2-C IC2-D
Input f=1kHz 686mVp-p (-10dBm/600)

(-22dBm) 172mVp-p

Reception

4.5Vp-p

900mVp-p Ring
-40dBm 22mVp-p Output -20dBm

#"

LED GREEN IN USE/CHARGE

To AC Adaptor

TX To H/S

22R 180R 3904

Flash time option 100msec 300msec 600msec IC3-19pin AR1 (Hi) N/C N/C 47k 47k AR2 (Lo) 47k 47k N/C N/C IC3-13pin AR3 (Hi) N/C 47k N/C 47k AR7 (Lo) 47k N/C 47k N/C (Reserved) 67 % Remark 61 % N/C 47k Pulse Dial % Break IC3-11pin R53

(730msec)

KX-TC1468LBB: SCHEMATIC DIAGRAM(Base Unit) Main

25.2. RF Module

10.7 MHz 10.7 MHz
25KHz-Dev 1KHz Tone Input

1.75V 0.2V (at CH1)

25KHz-Dev 1KHz Tone Output

Rx VCO

Tx VCO 1.8V 0.15V (at CH1)

Tx VCO

KX-TC1468LBB: SCHEMATIC DIAGRAM (Base Unit) RF Module

-T C L B B

26 SCHEMATIC DIAGRAM (Handset)

26.1. Main

3.6V 3.3V 3Vp-p

300mVp-p

490mVp-p (Volume)
3.3V Input 1kHz 10.7mVp-p 3.0 V

0R N/C 47k

KX-TC1468LBB: SCHEMATIC DIAGRAM (Handset) Main

26.2. RF Module

Rx VCO Tx VCO 1.8V 0.15V (at CH1)
KX-TC1468LBB: SCHEMATIC DIAGRAM (Handset) RF Module

K X -T C L B B

27 CIRCUIT BOARD (Base Unit)
27.1. Main (Component View)

L seize

Power Down
Tx Down SIG_OUT KX-TC1468LBB: BASE UNIT Main (Component View)
27.2. Main (Flow Solder Side View)

LED P1 (IC3-12)

CHG_DET (IC3-25)
Ring_DET (IC3-26) KX-TC1468LBB: BASE UNIT Main (Flow Solder Side View)
27.3. Locator (Component View)

SCHEMATIC DIAGRAM-1

MAIN 1/5 CIRCUIT

IORST A(0-25) D(0-31) D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7) D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15) h g e d b a i l c k f
FDC.TC PMUT USB.SD USB.ST USB.MAITU MIDI.TX MIDI.RX RMCOM CP.CLK CP.DATA SD.CS b c d e f g h i j k

+3.3D Z14 4.7Kx4

D(0) D(1) D(2) D(3) D(4) D(5) D(6) D(7)

+3.3D 2 1

R12 4.7K R7 100K Q2 2SD0601AQL

C7 0.1

Z20 4.7Kx4
D(16) D(17) D(18) D(19) D(20) D(21) D(22) D(23) D(24) D(25) D(26) D(27) D(28) D(29) D(30) D(31)

+3.3D C28 0.1

R4 4.7K

Q1 2SB0709ARL

C11 0.01

C1 100P

R2 100
R20 R21 R22 R13 R15 R16 R18 R23

Z16 4.7Kx4

Z21 4.7Kx4

VCC GND

C9 0.1
R3 1K R6 1K D1 MA2J11100L

C3 0.22 D3 R8 4.7K

Z18 4.7Kx4
D(8) D(9) D(10) D(11) D(12) D(13) D(14) D(15)

Z22 4.7Kx4

IC7 C0JBAA000255

IC9 C0JBAA000117

REAL.SDA A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7)
VDD 160 SBSUB0/PSBSUB1/PSBSBSBTCTS 152 VSS 151 TMO10/SBT0/PTMI10/SBT1/PTW210/PTW310/PVDD 146 TW410/PTW510/PTMG10A/PTMG10B/PRST 141 VSS 140 D0/PD1/PD2/PD3/PVDD 135 D4/PD5/PD6/PD7/PVSS 130 D8/PD9/PD10/PD11/PVDD 125 D12/PD13/PD14/PD15/P17 121

R1 100

MA2J11100L

Z19 4.7Kx4

Z23 4.7Kx4
RIC7 C0JBAA000255 IC9 C0JBAA000117

+3.3D Z8 4.7Kx4

A(0) A(1) A(2) A(3) A(4) A(5) A(6) A(7) A(16) A(17) A(18) A(19) A(20) A(21) A(22) A(23)

+3.3D Z15 4.7Kx4

A(8) A(9) A(10) A(11) A(12) A(13) A(14) A(15)

Z9 4.7Kx4 Z11 4.7Kx4

A(8) A(9) A(10) A(11) A(12) A(13) A(14) A(15) 2 1

Z17 4.7Kx4

A(16) A(17) A(18) A(19) A(20) A(21) A(22) A(23)

Z12 4.7Kx4

A(24) A(25)
IRQ1 IRQ1 IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 VSS MNIRQ CS0 RAS1/CS1 RAS2/CS2 RAS3/CS3 VDD CAS0 CAS1 CAS2 CAS3 VSS WE0 WE1 WE2 WE3 VDD NC RE RD/WT SIZE0 SIZE1 VSS DK NC PBLL UP BG BR WOOVF FRQS PVDD PVSS

C2 Z2 4.7Kx4

A0 A1 A2 A3 VSS A4 A5 A6 A7 VDD A8 A9 A10 A11 VSS A12 A13 A14 A15 VDD A16 A17 A18 A19 VSS A20 A21 A22 A23 VDD A24 A25 A26/CS4/RAS4 A27/CS5 VSS A28/CS6 A29 A30 A31/CS7 VDD
IC2 MN103002A (32bit MICRO-CONTROLLER)
VSS DSDSAT DSCLK MMODE BMODE VDD D16 D17 D18 D19 VSS D20 D21 D22 D23 VDD D24 D25 D26 D27 VSS D28 D29 D30 D31 VDD DMR0 DMK0 DMR1 DMK1 DMR2 DMK2 DMR3 DMK3 VSS SYSCLK DSC1 DSC0 VREF5V VDD

R33 R34

4.7K 4.7K R36 R37 C19 4.7K 4.7K 0.1
D(16) D(17) D(18) D(19) D(20) D(21) D(22) D(23)

C27 220P

IC9 C0JBAA000117 IC9 C0JBAA000117 IC9 C0JBAA000117

C20 0.1

D(24) D(25) D(26) D(27) D(28) D(29) D(30) D(31)

C21 0.1

R31 4.7K R32 4.7K

R39 47

+5D C17 0.1 C22 0.1
16 VCC PSRT.EX3 TGCS TGCS2 JIGU.CS FDC.CS FDC.DACK PORT.EX0 A0 A1 A2 CS2 CS3 CS6 A(16) A(17) A(18)

Z1 4.7Kx4

Z3 47x4

C12 0.1

IC1 C0JBAN000098

R35 47

7 VDD 1 XIN SSCLK XOUT S6 FRSEL SGND 2

R40 47

R25 4.7K

R26 4.7K

D6 MA2J11100L

C15 0.1

LCD.CS SNS FDC.INT TBC.SNS TGS.INT1 USB.SOF FDD.INDEX FOC.DBO

Z4 4.7K

X1 C16 H0J800400015 C18 3P 3P
IC6 C0ZBZ0000667 Z13 100x4

R5 100K

RC8 0.1

100P 100P 100P 100P

Z6 4.7Kx4

Z7 4.7Kx4

Z5 4.7Kx4

Z10 4.7Kx4

BUSCLK LCD.WAIT RE WE3 WE2 CLK1 IORST

a b c d e f g

R27 4.7K R28 470

R38 33

IC3 C0JBAD000071

IC5 C0JBAE000140

c d e a h f

C23 C24 C25 C26

SCHEMATIC DIAGRAM-2

PORT.EX2

+3.3D +3.3D C29 0.1
25 VCC VCC VCC 17 LCAS BCAS DE RAS W NC NC NC NC NC 2 D(31) D(30) D(29) D(28) D(27) D(26) D(25) D(24) D(23) D(22) D(21) D(20) D(19) D(18) D(17) D(16) VCC RESET RY/BY 8 AD VSS 27

R10 10K +5D

C31 0.1
47 BYTE NC ACC CE DE WE DT VSS D(31) D(30) D(29) D(28) D(27) D(26) D(25) D(24) D(23) D(22) D(21) D(20) D(19) D(18) D(17) D(16) A(22) A(21) A(20) A(19) A(18) A(17) A(16) A(15) A(14) A(13) A(12) A(11) A(10) A(9) A(8) A(7) A(6) A(5) A(4) A(3) A(2) A(1) VCC RESET AD VSS 27

C32 0.1

47 BYTE RY/BY ACC CE DE WE DT VSS D(31) D(30) D(29) D(28) D(27) D(26) D(25) D(24) D(23) D(22) D(21) D(20) D(19) D(18) D(17) D(16) 16 VCC D1 D2 D3 D4 D5 D6 RESET CLOCK GND 8 Q1 Q2 Q3 Q4 Q5 Q15

A(13) A(12) A(11) A(10) A(9) A(8) A(7) A(6) A(5) A(4) A(3) A(2)

7 AD 0

A(22) A(21) A(20) A(19) A(18) A(17) A(16) A(15) A(14) A(13) A(12) A(11) A(10) A(9) A(8) A(7) A(6) A(5) A(4) A(3) A(2)
D(21) D(20) D(19) D(18) D(17) D(16)
DSP.INT3 DSP.CS DSP.RST DSP.INT

IC18 C0JBAE000098 +3.3D

IC21 C0JBAF000232 (D TYPE FLIPFLOP)

VSS VSS VSS 50

IC18 C0JBAE000098 (DUAL 2 INPUT OR GATE)

PORT.EX3

IC10 C3ABMG000166 MSM51V18265DSL (16M DRAM)
IC12 C3FBNG000007 (32M DRAM)
IC14 C3ZBNG000023 (64M FLUSH ROM)

+3.3D +3.3D C30 0.1

25 VCC VCC VCC 17 LCAS BCAS OE RAS W NC NC NC NC NC 2 D(15) D(14) D(13) D(12) D(11) D(10) D(9) D(8) D(7) D(6) D(5) D(4) D(3) D(2) D(1) D(0) VCC RESET RY/BY 8 AD VSS 27

C35 0.1

47 BYTE NC ACC CE OE WE DT VSS D(15) D(14) D(13) D(12) D(11) D(10) D(9) D(8) D(7) D(6) D(5) D(4) D(3) D(2) D(1) D(0) 16 VCC D1 D2 D3 D4 D5 D6 RESET CLOCK GND 8

C38 0.1

Q1 Q2 Q3 Q4 Q5 Q6
DAC.MD DAC.MC DAC.ML REAL.SCL USB.MSL USB.WAITM
IC18 C0JBAE000098 R45 3.3K
IC22 C0JBAF000232 (D TYPE FLIPFLOP) +3.3D R48 2.2K C36 0.1

R46 4.7K

R47 4.7K
IC23 C3EBDC000020 (EEPROM(2K))
VCC WP SCL SDA A0 A1 A2 GND 3 4
IC11 C3ABMG000166 MSM51V18265DSL (16M DRAM)
IC13 C3FBNG000007 (32M DRAM)

REAL.SDA

SX-KN2400 MAIN 1/5 SCHEMATIC DIAGRAM

SCHEMATIC DIAGRAM-3

TO C CPC 1/2 CIRCUIT (CN1) ON SCHEMA TIC DIA GRAM 10

MAIN 2/5 CIRCUIT

+3.3D R104

DE +5D DATA

CLK RST BEND

a b c d e d c b a e a b

d a b c e

TO FDD

DE DE +5D DCH SIDE RDT WPRT TRKO WGA WDT STEP DIR MOT DSB IP

CN102 C101 +5D 0.1

Z103 1Kx4

R101 R102 R103

C124 0.1
DENSEL DRVDEN1 DRVDEN0 RDATA DSKCNG VCC VSS WRYPRY INDEX TRXO TC IRQ

C129 0.1

IC105 C0JBAZ001264 DUAL 3 STATE BUFFER R123 4.7K G1 VCC 8 A1 GY2 YGND A+5D R126 4.7K
FDC DRQ FDC TC FDC INT FDC DACK FDC CS

C115 0.1 Z107 100x4

D(23) D(22) D(21) D(20)

f 35 36

R120 47

R122 4.7K

R127 4.7K

Z101 47x4

220P 220P 220P 220P 220P 220P i j k

h g f i

Z102 47x4
MEDIA IO0 MEDIA IO1 VDATA VGATE HDSEL VSS STEP VCC DIB MTRI/IDLE DSI/PO MTRO OSD RESET X2(0) X1(1) VSS A2 A1 A0 CS IOR IOW ORQ
VCC D7 D6 D5 D4 VCC VSS D3 D2 D1 D0 DACK
RC125 0.1 C126 47P C127 47P
IC107 C0JBAZ001264 DUAL 3 STATE BUFFER G1 VCC 8 A1 GY2 YGND A+5D +5D

Z108100x4

D(19) D(18) D(17) D(16)
IC102 C1DB00000607 (FLOPPY DISC CONTROLER) R109 1M

C118 220P

C102 C103 C104 C105 C106 C107

RIC101 C0JBAB000180

R124 10K C130 0.01