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SPP-A941
SERVICE MANUAL
Ver 1.2 2003.07
US Model Canadian Model
SPECIFICATIONS
CORDLESS TELEPHONE WITH ANSWERING SYSTEM
9-927-600-13
2003G05-1 C 2003.07
Sony Corporation
Personal Audio Company Published by Sony Engineering Corporation
TABLE OF CONTENTS 1. GENERAL
Identifying the Parts ........................................................ Setting Up the Base Unit ................................................ Preparing the Battery Pack ............................................. Making Calls ................................................................... Receiving Calls ............................................................... 3 4 4 5 5
Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat.
SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2. 3. 4.
DISASSEMBLY ......................................................... 11 TEST MODE .............................................................. 13 ELECTRICAL ADJUSTMENTS
Base Unit ......................................................................... 14 Handset ............................................................................ 16
ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
5.
5-1. 5-2. 5-3. 5-4. 5-5. 5-6. 5-7. 5-8. 5-9. 5-10. 5-11. 5-12. 5-13. 5-14. 5-15. 5-16.
DIAGRAMS
Block Diagram BASE UNIT Section (1/2) ............. Block Diagram BASE UNIT Section (2/2) ............. Block Diagram HANDSET Section ........................ Note for Printed Wiring Boards and Schematic Diagrams ....................................................... Printed Wiring Board BASE RF Board ................... Schematic Diagram BASE RF Board ...................... Printed Wiring Board BASE MAIN Board ............. Schematic Diagram BASE MAIN Board ................ Printed Wiring Board BASE I-TAD Board ............. Schematic Diagram BASE I-TAD Board ................ Printed Wiring Board BASE KEY Board ............... Schematic Diagram BASE KEY Board .................. Printed Wiring Boards HAND RF/MAIN Boards ......................................... Schematic Diagram HAND RF Board .................... Schematic Diagram HAND MAIN Board .............. IC Pin Function Description ........................................... 17 19 21 23 23 25 27 29 32 33 35 36 37 39 41 45
6. 7.
EXPLODED VIEWS ................................................ 49 ELECTRICAL PARTS LIST ............................... 51
2
GENERAL
instruction manual.
3
4
5
6
7
8
9
10
TEST MODE
BASE UNIT
1. Entering the Test Mode 1. While pressing the [HANDSET LOCATOR] key, turn the power ON, then change over the [DIAL MODE] switch from "PULSE" to "TONE" within 4 seconds. 2. When enter the test mode, Light up the [CHARGE] and [IN USE] LEDs. 2. Change the Mode Press and hold the [HANDSET LOCATOR] key for about 2 seconds to change the mode like Mode 1, Mode 2, Mode 3, Mode 4, Mode 1....
HANDSET
1. Entering the Test Mode 1. Press two keys of [3] and [#] simultaneously. 2. When enter the test mode, the happy tone is emitted.
[CHANNEL] key
2. Key Functions · Change the channel. (Each time the [CHANNEL] key is pressed, change the channel like 0, 1, 2...9, 0... (default channel is 5)) · Refresh PLL, RX/TX counters. · Toggle TX power. (ON: lights up the [TALK/BATT LOW] LED) · Refresh PLL, TX counters.
[PGM] key
[CHARGE] LED : Lights up.
Function Operation : Change the channel. : Each time the [HANDSET LOCATOR] key is pressed momentarily, change the channel like 0, 1, 2...9, 0... (default channel is 5ch)
Mode 1:
[SPEED DIAL] key
· Toggle RX power. · Refresh PLL REF, RX/TX counters.
Mode 2:
[CHARGE] LED : Goes off.
: Toggle TX power. : Each time the [HANDSET LOCATOR] key is pressed momentarily, change over ON/ OFF. (default status is ON)
[REDIAL] key
· Toggle TX attenuator. · Refresh PLL status register.
Function Operation
[TALK] key [OFF] key
· Change PLL gain mode. (lowest highest (4 steps))
Mode 3:
[CHARGE] LED : Lights up.
: Not used in servicing.
Function Mode 4:
· Exit the test mode and emit the sad tone.
Note: All keys pressed will emit the key tone.
[CHARGE] LED : Goes off.
: Transmit the tone signal for 3 seconds. : Press the [HANDSET LOCATOR] key momentarily to transmit the tone signal, and blinks the [CHARGE] LED. Each time transmit it, then change the frequency of signal tone like 697 Hz, 770 Hz, 852 Hz, 941 Hz, 1209 Hz, 1336 Hz, 1477 Hz, 1633 Hz, 697 Hz... (default frequency is 697 Hz)
Function Operation
3. Exiting the Test Mode Disconnect the power.
13
ELECTRICAL ADJUSTMENTS
0 dBm = 0.775 V 0 dBv = 1 V BASE UNIT
Adjustment Equipment and Connection
BASE RF Board RF generator TP (ANT)
audio generator BASE MAIN Board feedback bridge LINE Jack (J7) TP14 (TX LOOP VOLTAGE) TP15 (RX LOOP VOLTAGE) TP16 (RX AUDIO) digital voltmeter
6. MOD Deviation Adjustment 1. Connect the RF generator to TP (ANT) on the MAIN RF board. 2. Connect the audio generator (to feedback bridge) to LINE jack (J7) on the BASE MAIN board. 3. Set the audio generator as follows. output level : 17 dBv output frequency: 1 kHz 4. Set the RF generator as follows. input frequency : 903.8 MHz filter frequency : 300 Hz to 3 kHz detector : PK+1/2 5. Adjust VR2 on the BASE MAIN board for 25 ± 3 kHz reading on the RF generator.
DC 9 V
Setting: 1. Enter the test mode. (refer to page 13) 2. Set the channel to 6ch. 1. RX Loop Voltage Confirmation 1. Connect the digital voltmeter to TP15 (RX LOOP VOLTAGE) on the BASE MAIN board. 2. Confirm that the value of digital voltmeter is 0.5 Vdc to 4.3 Vdc. 2. TX Loop Voltage Confirmation 1. Connect the digital voltmeter to TP14 (TX LOOP VOLTAGE) on the BASE MAIN board. 2. Confirm that the value of digital voltmeter is 0.5 Vdc to 4.3 Vdc. 3. TX Frequency Adjustment 1. Connect the RF generator to TP (ANT) on the BASE RF board. 2. Adjust C15 on the BASE MAIN board for 903.8 MHz ± 3 kHz reading on the RF generator. 4. Quad-Voltage Adjustment 1. Connect the digital voltmeter to TP16 (RX AUDIO) on the BASE MAIN board. 2. Adjust C99 on the BASE RF board for 1.775 ± 0.15 Vdc reading on the digital voltmeter. 5. DEMOD Audio Level Adjustment 1. Connect the RF generator to TP (ANT) on the BASE RF board. 2. Connect the audio generator (to feedback bridge) to LINE jack (J7) on the BASE MAIN board. 3. Set the RF generator as follows. output frequency : 926.55 MHz output level : 50 dBm FM deviation : 25 kHz MOD tone frequency : 1 kHz 4. Adjust VR1 on the BASE MAIN board for 10 ± 1 dBv reading on the audio generator.
14
Adjustment Location:
BASE RF BOARD (Side A)
TP (ANT)
C99 Quad-Voltage Adjustment
BASE MAIN BOARD (Component Side)
BASE MAIN BOARD (Conductor Side)
VR1 DEMOD Audio Level Adjustment VR2 MOD Deviation Adjustment
C15 TX Frequency Adjustment
T (Tone)
SW1 TP15 (RX LOOP VOLTAGE)
P (Pulse) TP14 (TX LOOP VOLTAGE) TP16 (RX AUDIO)
15
HANDSET
Adjustment Equipment and Connection
HAND RF Board RF generator TP (ANT)
Adjustment Location:
HAND RF BOARD (Side B)
TP (ANT)
HAND MAIN Board audio generator TP (RECEIVER +)or TP (MIC IN) TP (RX AUDIO) digital voltmeter
C25 Quad-Voltage Adjustment
DC 3.6 V
Setting: 1. Enter the test mode. (refer to page 13) 2. Set the channel to 6ch. 3. Set the [VOL] switch (S19) to the "L" position. 4. Disconnect the microphone (U9) wire at the HAND MAIN board. 1. TX Frequency Adjustment 1. Connect the RF generator to TP (ANT) on the HAND RF board. 2. Adjust C92 on the HAND MAIN board for 926.55 MHz ± 3 kHz reading on the RF generator. 2. Quad-Voltage Adjustment 1. Connect the digital voltmeter to TP (RX AUDIO) on the HAND MAIN board. 2. Adjust C25 on the HAND RF board for 1.6 ± 0.075 Vdc reading on the digital voltmeter. 3. DEMOD Audio Level Adjustment 1. Connect the RF generator to TP (ANT) on the HAND RF board. 2. Connect the audio generator to TP (RECEIVER +) on the HAND MAIN board. 3. Set the RF generator as follows. output frequency : 903.8 MHz output level : 50 dBm FM deviation : 25 kHz MOD tone frequency : 1 kHz 4. Adjust R113 on the HAND MAIN board for 90 ± 5 mV reading on the audio generator. 4. MOD Deviation Adjustment 1. Connect the RF generator to TP (ANT) on the HAND RF board. 2. Connect the audio generator to TP (MIC IN) on the HAND MAIN board. 3. Set the audio generator as follows. output level : 35 mV output frequency: 1 kHz 4. Adjust R119 on the HAND MAIN board for 25 ± 3 kHz reading on the RF generator.
HAND MAIN BOARD (Side A)
C92 TX Frequency Adjustment
R113 DEMOD Audio Level Adjustment
R119 MOD Deviation Adjustment TP (RECEIVER +)
TP (MIC IN)
TP (RX AUDIO)
16
SPP-A SECTION 5 DIAGRAMS
5-1.
C99 QUAD-VOLTAGE 16 DEM TANK VR1 DEMOD AUDIO LEVEL DEM OUT 15 PREAMP LOW-PASS FILTER LOCAL OSC BUFFER RSSI RSSI COMPRESSOR, EXPANDER, NOISE GATE U4 LO IN LOW-PASS FILTER U5 (4/4) BUFFER U5 (3/4) 2 1 23 EXPANDER CIRCUIT 20 DEEMPHASIS PRE NF FIL2 IN FIL2 OUT EXP OUT
BLOCK DIAGRAM BASE UNIT Section (1/2)
MIX, OSC, LIMITER AMP, DET U1
926MHz A1IN MIXER 5 9 20 DEMODULATOR MIX OUT F5 10.7MHz F4 10.7MHz LIM2 IN LIMITER AMP LIM1 LIM1 IN LIMITER OUT 22 AMP
926.25MHz
L12 10.7MHz
ANT1 (ANTENNA)
B.P.F. F2
RF AMP Q2
SAW FILTER F3
3
+
19
RIN + RO1 AMP
RO1
18
BUFFER Q17
26
10 MIC AMP 5 COMP OUT LOW-PASS FILTER FIL1 FIL1 OUT IN 4 VR2 IN2 MOD DEVIATION TX MUTE Q6 RX DATA 25 TX DATA 24 MUTE 16 DATA/AUDIO ADDER U5 (2/4)
903MHz TX VCO Q8 3 CARRIER DETECT AMP Q3, 4
B.P.F. F1
TX AMP Q1
+
PRE EMPHASIS
+
EXP MUTE
COMPRESSOR CIRCUIT COMP MUTE
MIC NF
10
6
15
16
9
18 CAR-DET PLL U10
14 16 38
CP2 RX SYSTEM PLL CIRCUIT
FIN2
3
CP1 TX SYSTEM PLL CIRCUIT 1
FIN1
DTMF1 DTMF6
DTMF LOW-PASS FILTER U5 (3/4)
MIC1 REFERENCE DIVIDER SYSTEM CONTROLLER U1 (1/2) MIC
25 MIC+ 26 MIC
LIFPOUT/ 39 DTMF
CONTROL CIRCUIT
DATA CK STB
XIN
SP1 C15 TX FREQUENCY OSC Q4 26 OSC2 27 OSC1 X1 4MHz
SPEAKER AMP U6
23 SPK+
LIFMIN2 36
7 6 8
11
56 SP EN TAD U1 (1/2) 50 20 45
BU HOOK
HOOK SW
RINGER DET
31
10 13 11 12 9 PLL EN EEP/PLL CLK EEP/PLL DATA EEP DI EEP CS
HOOK ON/OFF DETECT Q1 LED1 IN USE
LEVEL SHIFT Q2
LINE DC COMPARATOR U2
3 2 4 1 DIN CLK DOUT CS T1 LINE TRANSFORMER D9 LED DRIVE Q12 HOOK ON/OFF U7 D10
AD0IN
D9 12 RECT
EEPROM U3
D12
· SIGNAL PATH
D11 J7 LINE OFF HOOK 17 RINGER DET 20
: RX
: TX
: BELL
RINGER DETECT U8
05
17
18
MIC OUT
RX VCO Q9
SPP-A941
5-2.
LD1 LD3 2 B+ SWITCH (FOR LEDS) Q10 B+ (+3V) 3 LD4 ANSWER ON/OFF U1 7 SEGMENTS LED (MESSAGE COUNTER) MAIL BOX 1 LD2
BLOCK DIAGRAM BASE UNIT Section (2/2)
15 1 2 3 QA QB QC QD QE QF QG
7 SEGMENTS LED DRIVE Q8 U10 LED/7 SEGMENTS LED DRIVE EEPROM U3 RESET 10 CS SCK SI SO 7 24 FSI RESET RSTIN X1 3.579545MHz 4 5 6 42 41 6 LED SEL ROW0 ROW4 COL0 COL2 75 77 XTAL2 XTAL1 14 18 62 57 58 59 8 CS FSK FSO TAD U1 (2/2) RESET SHIFT CLK LATCH CLK A B+ (+3V) KEY MATRIX KP0 2, 10 12, 20, 22 KP30, 31, 40 42
7 SEGMENTS LED DRIVE Q9
4 5 6
11 12 14
5 9 10 11 L LATCH L CLK L DATA 7SEG D1
4
7SEG D2
55
52
RESET SIGNAL GENERATOR Q3
VOLTAGE DETECT Q1
MIN
ATE 23
ATE
CRADLE DET 19
CRADLE/CHARGE DETECT Q15, 16
+
D2 B+ (+3V) LED2 CHARGE V REG B+ (RX PWR B+) TX PWR B+ B+ SWITCH (FOR TX SYSTEM) Q5 +3V REGULATOR U2
CHARGE TERMINAL
SYSTEM CONTROLLER U1 (2/2) SW1 DIAL MODE PULSE 22 TONE/PULSE TONE
+5V REGULATOR U9 J8
05
TX ENABLE 15 RESET 1 RESET SIGNAL GENERATOR Q2, 3 DC IN 9V
+
V REG B+ KP16 HANDSET LOCATOR
21 PAGE
19
20
SPP-A
5-3.
C25 QUAD-VOLTAGE 16
DEM TANK
BLOCK DIAGRAM HANDSET Section
S19 VOL L (LOW) M (MEDIUM) H (HIGH) 18
RO1
MIX, OSC, LIMITER AMP, DET U1 R113 DEMOD AUDIO LEVEL DEM OUT 15 PREAMP LOW-PASS FILTER LOCAL OSC BUFFER RSSI
RSSI LO IN
903MHz A1IN MIXER 5 9 20 DEMODULATOR 2 1 23 20 BUFFER U5 (4/4) EXPANDER CIRCUIT DEEMPHASIS MIX OUT PRE IN 19 F4 10.7MHz FIL2 IN FIL2 OUT LIM1 LIM1 IN LIMITER OUT 22 AMP F5 10.7MHz LIM2 IN LIMITER AMP EXP OUT
903.65MHz
L2 10.7MHz
B.P.F. F1
RF AMP Q2
3
ROIN + RO1 AMP + RO2 RO2 AMP 17
ANT2 (ANTENNA)
SAW FILTER F3
U8 (SPEAK
LOW-PASS FILTER U5 (2/4) COMPRESSOR, EXPANDER, NOISE GATE U7
26
10 MIC AMP
926MHz TX VCO Q1 3 R119 4 DATA/AUDIO ADDER U5 (3/4)
B.P.F. F2
TX AMP Q3
LOW-PASS FILTER FIL1 FIL1 OUT IN
+
5 MOD DEVIATION
PRE EMPHASIS
COMP OUT
+
IN2 EXP MUTE
COMPRESSOR CIRCUIT
COMP MUTE
MIC NF
10
U (M
RX VCO Q8 BUFFER Q1
6
15
16
PLL U3 RX DATA 25 TX DATA 24 FIN2 16 MUTE 19 SYSTEM CONTROLLER U3 TX SYSTEM PLL CIRCUIT 1 FIN1 BEEP 20 BUZZER DRIVE Q14, 17 U4 (BUZZER)
14
CP2 RX SYSTEM PLL CIRCUIT
3
CP1
CONTROL CIRCUIT
REFERENCE DIVIDER
DATA CK STB
XIN
TALK/BATT LED 17 C92 D5 TALK/BATT LOW 26 OSC2 ATE 21 27 OSC1 X1 4MHz CRADLE DET 23 TX FREQUENCY OSC Q12
B+ (MCU PWR)
7 6 8
11
ATE
CRADLE DETECT Q15
+
D7 OUTPUT MCU PWR B+ 3 14 V-ANA PWR B+ B+ SWITCH (FOR ANALOG SYSTEM) Q18 FEED BACK REGULATOR, RESET SIGNAL GENERATOR, BATTERY DETECT U11
CHARGE TERMINAL
12 PLL EN 13 PLL CLK 11 PLL DATA
REGULATOR ERROR AMP TX ENABLE 15 TX PWR B+ B+ SWITCH (FOR TX SYSTEM) Q13 6
INPUT
15
10 7
ROW1 ROW4
MUTE
SHUT DOWM COMPARATOR
SHUT DOWN
5
RECHARGEABLE BATTERY PACK (BP-T23) ERROR DROP OUT DETECT AMP
S1 S18
63
COL0 COL3
RX PWR B+ RX ENABLE 16 Q20 IRQ 2
B+ SWITCH (FOR RX SYSTEM) Q16
10
COMP OUT
AUXILLARY COMPARATOR 1.23V
COMP IN
11
KEY MATRIX (SHEET KEY)
· SIGNAL PATH
: RX
WATCH DOG TIMER COMPARATOR U5 (1/4) RESET 1 LOW BATT 22
SWITCHING Q19
: TX
: BELL
05
21
22
SPP-A
5-6.
SCHEMATIC DIAGRAM BASE RF Board
· See page 43 for IC Block Diagrams.
(Page 3
25
26
5-8.
SCHEMATIC DIAGRAM BASE MAIN Board
· See page 31 for Waveform.
· See page 43 for IC Block Diagrams.
SPP-A
(Page 26)
(Page 33)
(Page 33)
(Page 36)
29
30
5-10. SCHEMATIC DIAGRAM BASE I-TAD Board
· See page 31 for Waveform.
SPP-A
(Page 30)
(Page 30)
33
34
SPP-A941
5-14. SCHEMATIC DIAGRAM HAND RF Board
· See page 43 for IC Block Diagrams.
(Page 42)
39
40
SPP-A
5-15. SCHEMATIC DIAGRAM HAND MAIN Board
· See page 31 for Waveform.
· See page 44 for IC Block Diagrams.
(Page 4
41
42
· IC Block Diagrams
U4 U7
TA31103F (BASE MAIN Board) TA31103F (HAND MAIN Board)
U1 U1
VCC PRE NF PRE OUT E-RECT EXP OUT RIN RO1 RO2 COMP MUTE EXP MUTE THROUG VREF
U2765B-AFSG3 (BASE RF Board) U2765B-AFSG3 (HAND RF Board)
VCC2
LO REF
LO IN
GND2 NC VCC3
LIM1 OUT
GND3 LIM2 IN LIM2 REF GND4
DEM NTANK
DEM TANK
28 + + G EXP MUTE SUM AMP VREF VREF RO2 AMP + RO1 AMP SWITCH CONTROL +
27 26
25 24 23
22
21 20 19 18
17 16
15
LOCAL OSC BUFFER PRE AMP VCC/2 THROUGH VREF THROUG COMP MUTE + VREF + G SLICER VREF
LIMITER AMP
DEMODULATOR
MIX
LIMITER AMP
RSSI
COMPARATOR + FILTER AMP 2 IN 2 AMP + 13
COM IN SL IN
DEM OUT
24 23 21 18 17
22 20 19 16 15 14 13
MIC AMP +
A1 +
FILTER AMP 1
SUM VREF AMP +
1
2
3
4 5 6 7
8
9 14
10
11
12
NC
A1 REF
A1 IN
LIM1 IN
RSSI
LIM1 REF
GND1 MIX OUT VCC1 MIX NOUT
DATA OUT
COM NIN
1 6
IN2 C-RECT FIL1 IN FIL2 OUT FIL2 IN FIL1 OUT COMP OUT
2 3 4 5 7
8
C-NF
9
MIC OUT
10 11 12
MIC NF MIC IN GND
U3 U10
XOUT BO 9
TB31202BFN-EL (HAND RF Board) TB31202BFN-EL (BASE RF Board)
FIN2
VCC
CP2
GND
SW
16
15 10
14
13
12
11
XIN
U10
BUF
MC74HC595AF (BASE MAIN Board)
U11
LP2953IM (HAND MAIN Board)
SWITCH
L. OSC
1/2
PHASE COMPARATOR OUTPUT
SERIAL DATA INPUT OUTPUT ENABLE LATCH CLOCK SHIFT CLOCK
16 GND
RESET
PARALLEL DATA OUTPUT
1 32, 33 16 15 VCC
QA A
BUF 14 13
SERIAL DATA OUTPUT
1/2 12
GND 1 NC 2
11 10 9
SQH
PROGRAMABLE DIVIDER
OUTPUT 3 ERROR AMP +
SHIFT REGISTER
15 INPUT
REFERENCE DIVIDER
14 FEEDBACK
1 32, 33
BUF
PROGRAMABLE DIVIDER
1/2 CONTROL CIRCUIT
PHASE COMPARATOR OUTPUT
LOCK DET
SENSE 4 SHUT DOWN 5 +
13 5V TAP
1 8 STB DATA
2
3 7
4
5
6
LATCH
SHUT DOWN COMPARATOR DROP OUT DETECTION AMP
QC QD QE QF QG QB QH
LD
FIN1
VCC
CP1
GND
CK
ERROR 6
GND 1 2 3 4 5 PARALLEL DATA OUTPUT 6 7 8
+ NC 7 GND 8 12 VREF 1.23V AUXILLARY COMPARATOR 11 COMP IN 10 COMP OUT 9 GND +
U3
CAT93C46KI (BASE MAIN Board)
U6
KA8602D (BASE MAIN Board)
VCC
NC
ORG
8
7
6
GND
5
MEMORY ARRAY 128X8 bit/ 64X16 bit
HIGH VOLTAGE GENERATOR
BIAS CIRCUIT IN+ 1 IN 2 + + AMP2 6 OUT2 5 GND AMP1 OUT1 3 VCC 4
8
RIPPLE REJECTION 7 MUTE
ADDRESS DECODER
DATA REGISTER
BUFFER
DECODE & CONTROL LOGIC
CLOCK GENERATOR
1
2
3
4
CS
SK
DI
DO
43
44
SPP-A941
US Model Canadian Model
SERVICE MANUAL
Ver 1.1 2000.11
SUPPLEMENT-1
File this supplement with the service manual.
Subject: Change of Parts US model (Serial No. 0600001 and later) Canadian model (Serial No. 0200001 and later)
(ECN-CPE00452, CPE00458)
TABLE OF CONTENTS 1. 2. 3. SERVICING NOTES ............................................... 2 DISASSEMBLY ......................................................... 3 TEST MODE
Base Unit ......................................................................... 5 Handset ............................................................................ 5
4.
DIAGRAMS
7 9 11 13 15
4-1. Note for Printed Wiring Boards and Schematic Diagrams ................................................ 4-2. Printed Wiring Board BASE MAIN Board .............. 4-3. Schematic Diagram BASE MAIN Board ................. 4-4. Printed Wiring Board HAND MAIN Board ............ 4-5. Schematic Diagram HAND MAIN Board ...............
5. 6.
EXPLODED VIEWS ................................................ 17 ELECTRICAL PARTS LIST ............................... 19
9-927-600-81
1.
SERVICING NOTES
NEW/FORMER TYPE DISCRIMINATION
BASE MAIN Board (Conductor Side) BASE MAIN Board (Conductor Side)
FORMER TYPE
NEW TYPE
US model (Serial No. 0600001 and later) Canadian model (Serial No. 0200001 and later)
HAND MAIN Board (Component Side)
HAND MAIN Board (Component Side)
FORMER TYPE
NEW TYPE
US model (Serial No. 0600001 and later) Canadian model (Serial No. 0200001 and later)
NOTE FOR REPLACEMENT OF THE EEPROM The ID cord is written in the EEPROM. When replacing the EEPROM, U7 on the BASE MAIN board and U5 on HAND MAIN board should be replaced together as a pair. (Parts No. X-3380-233-1)
2