Sony SPP-S9101 - Cordless Telephone User manual

1
MICROFILM
SPP-S9101
US Model
Canadian Model
SPECIFICATIONS
SERVICE MANUAL
CORDLESS TELEPHONE

2
TABLE OF CONTENTS
1. GENERAL .......................................................................... 3
2. DISASSEMBLY
2-1. Battery Case LID (Handset)................................................ 12
2-2. Cabinet (Rear) (Handset) .................................................... 12
2-3. Hand Main Board (Handset) ............................................... 12
2-4. Cabinet and Boards (Base Unit) ......................................... 12
3. 900 MHz SYSTEM OPERATION
3-1. Access Method.................................................................... 13
3-2. Protocol ............................................................................... 13
4.TEST MODE
4-1. Base Unit Test Mode A ....................................................... 16
4-2. Base Unit Test Mode B ....................................................... 17
4-3. Handset Test Mode.............................................................. 18
4-4. RF Testing ........................................................................... 19
5. ELECTRICAL ADJUSTMENTS
5-1. Base Unit Section................................................................ 22
5-2. Handset Section .................................................................. 23
6. DIAGRAMS
6-1. IC Block Diagrams ............................................................. 25
6-2. Printed Wiring Boards – Base Unit/LED Section –............ 26
6-3. Schematic Diagram – Base Unit (1/2) Section – ................ 28
6-4. Schematic Diagrams – Base Unit (2/2)/LED Section –...... 29
6-5. Printed Wiring Board – Handset Section – ......................... 30
6-6. Schematic Diagram – Handset Section –............................ 31
6-7. IC Pin Functions ................................................................. 32
7. EXPLODEDVIEWS
7-1. Handset Section .................................................................. 35
7-2. Base Unit Section................................................................ 36
8. ELECTRICAL PARTS LIST ........................................ 37
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 !OR DOTTED LINE
WITH MARK !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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE !
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT.NE REMPLACERCES COMPOSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS
SONT DONNÉS DANS CE MANUEL OU DANS LES
SUPPLÉMENTS PUBLIÉS PAR SONY.

3
SECTION 1
GENERAL This section is extracted from
instruction manual.

4

5

6

7

8

9

10

11

12
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
Battery case lid
Nickel cadmium battery
Two screws (BTP 2.6x8)
1
23
1
1
2
Cabinet (rear)
Two screws (BTP 2.6x8) Screw (BTP 2.6x8)
Screw (BTP 2.6x12)
Hand main board
Helical antenna
Connector (CN601)
1
2
3
4
5
2-2. CABINET (REAR)(HANDSET)
2-3. HAND MAIN BOARD (HANDSET)
2-1. BATTERY CASE LID (HANDSET)
2-4. CABINET AND BOARDS (BASE UNIT)
1 Two screws
(P3x10)
7 Four screws
(P3x10)
8 Base (Main)
board
0 LED board
!¡ Button (H.L.)
!™ Lens
(Basic)
5 Cabinet (Upper)
3 Cabinet (Lower) assy
2 Two screws
(P3x10)
9 Two screws
(BTP2.6x8)
6 Antenna terminal
4 Three connectors

13
3-1. ACCESS METHOD
1. Transfer Format & Rate
The transfer format & rate of our system is as follows;
Table 3-1.Transfer method
Access method FDMA-TDD
Channel number 14 channel
Channel spacing 1.2 MHz
Modulation method DBPSK
Baseband transfer rate 960 Kbps
Spread method Direct Sequence Spread Spectrum
Chip rate 12 chips/bit
Data transfer rate 80 Kbps
2. Channel Number & Frequencies
RF channels occupy the frequency band 902 – 928 MHz are num-
bered 1 to 14.
RF channel numbers & center frequencies are specified as fol-
lows.
Table 3-2. Channel number & Channel frequency
Channel Channel Center Frequency (MHz)
Number UNIT CH PLAN TEST MODE CH PLAN
1 907.2 904.2
2 908.4 904.8
3 909.6 906.0
4 910.8 907.2
5 912.0 908.4
6 913.2 909.6
7 914.4 910.8
8 915.6 912.0
9 916.8 913.2
10 918.0 914.4
11 919.2 915.6
12 920.4 916.8
13 921.6 918.0
14 922.8 919.2
15 920.4
16 921.6
17 922.8
18 924.0
19 925.2
20 925.8
SECTION 3
900 MHz SYSTEM OPERATION
3-2. PROTOCOL
1. General
This system realizes the TX/RX superframe by TDD system. The
relation of master/slave dose not decide identification regarding
the protocol between BASE UNIT and HANDSET, but the initi-
ated side is the master and the requested side is the slave when the
RF link has been established.
2. Initial Acquisition
In order to establish the RF link between BASE UNIT and HAND-
SET, both of BASE UNIT and HANDSET need to have the same
system ID. When “power” is applied to this system, the system
have to do InitialAcquisition in order to have the same system ID.
It is to exchange a parameter when the HANDSET is parked on
the BASE UNIT, as soon as the system do System Parameters Re-
initialization.
3. System Parameter Re-initialization
This System Parameters Re-initialization can realize that the
HANDSET is parked on the BASE UNIT. So after the BASE UNIT
recognized to be parked the HANDSET, the BASE UNIT calcu-
lates a system parameter, and then it outputs this data from the
ARTO port, and then the system establishes the RF link. In order
to establish this link, the HANDSET send theA-Frame to the BASE
UNIT after the HANDSET received the system parameter, and
then the BASE UNIT send the A-Frame to the HANDSET. The
process of System Parameters Re-initialization is as follows.
Fig. 3-1. System Parameters Re-initialization
BASE UNIT HANDSET
System ID
confirmed
System ID
confirmed
(Park Detect)(Park Detect)
(PARK)
System Parameters
A-Frame
A-Frame
*Note) The UNIT has 14 channels according to the UNIT CH
PLAN while the number of channels which can be used in
the test mode are those in the TEST MODE CH PLAN.

14
(2) BASE UNIT
The BASE UNIT is supplied the power byAC line. While the
BASE UNIT is the stand-by, the BASE UNIT is always a wake
state. While the BASE UNIT monitors the current channel,
the BASE UNIT monitors also the other channel at the same
time
Because if the current channel can not use by some interfer-
ence, the system needs the clear channel information as a part
of system parameter for a channel hop.
If the BASE UNIT can not receive theA-Frame of Heart-beat
from the HANDSET, it become “link error”, and the system
become error recovery mode.
4. Stand-by Mode Operation
(1) HANDSET
When the HANDSET is the stand-by mode (sleep mode), the
HANDSET do the intermittent operation for power save, be-
cause the HANDSET is the battery operation.
This process of stand-by mode operation is as follows.
10 sec
10 sec
Heart-Beat Heart-Beat
1 sec 1 sec
RX
RX RX RX RX RX
1 sec
2 msec
2 msec 10 msec
10 msec
RXTXRX
Heart Beat
(Exchange A-Frame for Link confirmation purpose)
RX
Heart-Beat
10 sec
Fig. 3-2. Stand-by mode operation (HANDSET)

15
Master Slave
System ID
confirmed
System ID
confirmed
A-Frame
A-Frame
V-Frame
V-Frame
V-Frame
V-Frame
5. Link Establishment
According to the following Fig. 3-1, the requested side for link
establishment is the master.
The system have to exchange theA-Frame for link establishment,
and each system ID should be the same ID, and then the system
link is established.
The protocol and timing chart of link establishment are as fol-
lows.
Fig. 3-3. Link Establishment protocol
Master TX
Master RX
Slave RX
Slave TX
Master
Time Slot
Trip Delay
TX RX TX RX TX
AV
A' V
V
V
VA
VA'
V
Fig. 3-4. Link EstablishmentTiming Chart
6. State Change/Tarmination
After the RF link between HANDSET and BASE UNIT was es-
tablished, a movement of each state (State: ON-Hook, OFF-Hook,
PAGE, InterCom, etc) is sent through supervisory bits.
7. Error Recovery
In case of the following situation, The system becomes “Error
Recovery Mode”.
(1) The system failed to move to “Heart-Beat” during “Stand-by
mode, or failed “link establishment”.
(2) The system failed to keep the link.

16
4-1. BASE UNITTEST MODE A
Manual SystemTest Mode
[Start-up]
1. Set the DIAL MODE switch to P (PULSE), and turn on the
power while pressing the HANDSET LOCATOR key.
2. Change the DIAL MODE switch from P (PULSE) to T
(TONE) bP(PULSE), and release the HANDSETLOCATOR
key to start up.
3. After starting up Test Mode A, perform dial test.
4. The TEST MODEA state will be set after the dial test.
5. In test mode idlingA, pressing the HANDSETLOCATOR key
with the P (PULSE)/T (TONE) switch set to P (PULSE) state
switches to BASE UNIT TEST MODEA-1.
4-1-1. BASE UNITTest Mode A-1
1. In test mode idling A and the P (PULSE)/ T (TONE) switch set
to the P (PULSE) state, pressing the HANDSET LOCATOR
key changes the mode as shown below.
2. Setting the P (PULSE)/ T (TONE) switch from P (PULSE) to T
(TONE) in the BASE UNIT test mode A-1 in any time also en-
ables the mode to be changed to the BASE UNIT test mode
idling A.
• This mode is intended for checking that the IC501 line is operat-
ing properly.Add the LINEIN signal and check that the signal is
output to the SPEAKER OUT.
HANDSET
LOCATIOR
button
pressing
count 1
2
3
4
CODEC Forward Loopback (L1)
(Line: Talking state)
(CODEC LINE IN nSPEAKER OUT)
ADPCM Forward Loopback (L2)
(Line: Talking state)
(CODEC LINEIN nADPCM
nCODEC SPERKER OUT)
Does not function
Returns to BASE UNIT TEST MODE • IDLING A
Test mode
Note: If the LEDs are lit due to the idling state test, clear all the
LEDs, and return to the idling state.
[Base Set AUDIO Input/Output Level test
[CODEC Forward Loop Back (LI) Mode]]
[DialTest]
Afterstarting BASEUNITTESTModeA, closethe circuitfor about
500 msec after start, and dial PAUSE , 0 (DP), wait 2 seconds, 1
(Tone), 4 (Tone), 8 (Tone), # (Tone) in this order.
[Ring DetectTest]
1. Rings theNormalRinger synchronizedwith anexternalcall com-
ing in, and blinks the IC501 Pin !™, !£ (New Call LED/MES-
SAGE LED) at the same time.
[CIDType 1 ReceptionTest]
1. When an external call comes in, receive the CID Type 1 signal
(the CID signal timing conforms to the regular specifications).
If it could be received correctly (determined by whether the
checksum is correct), the New Call LED is blinked, and hereaf-
ter the ringer sounds and lights up the memory match tone.
[Visual MessageWaiting IndicatorTest]
1. During test mode idling, receive the signal (the CID signal tim-
ing conforms to the regular specifications) of the Visual Mes-
sage Waiting Indicator generated by the PJK signal. If it could
be received correctly, (determined by whether the checksum is
correct), the New Call LED is lit. At the same time, the MES-
SAGE LED is synchronized and blinked.
[Charge Detection and ART0 OutputTest]
1. Detects thatthechargedetection terminalIC501 Pin@∞ (PARKP)
has turned from H to L, and outputs a square waveform signal
(2.4 kbps) from the ART0 terminal.
2. Clears the EEPROM contents at the same time.
[Charge ControlTest]
1. When the IC501 Pin !• input (BATT_CHK) changes from
L, H, to L during charge detection, the IC501 Pin !¶ output
(CHRG_CTL) will output L, H, LH, L, to H only once.
[Branch DetectionTest]
When the shared phone is detected to be off the hook and the Branch
detection terminal IC501 Pin (¢ (EXT_DET) detects L, the MES-
SAGE LED is lit. When off-hook is detected and the Branch detec-
tion terminal IC501 Pin (¢ (EXT_DET) detects H, the MESSAGE
LED is turned off.
Audio analyzer Level meter
Base main mount
• Short:TP911 GND
TP102
TP912
GND
TP911
TP101
osc out
Setting:
Setting: OSC=–13.0 dBV (Open terminal)
MOD=1 kHz
DIAL MODE switch
P (PULSE) side
T (TONE) side
Idle status
Test Mode Idle A-1
Test Mode Idle A-2
SECTION 4
TEST MODE

17
4-2. BASE UNITTEST MODE B
Manual SystemTest Mode
[Start-up]
1. Set the DIAL MODE switch to T (TONE), and turn on the
power while pressing the HANDSET LOCATOR key.
2. Change the DIAL MODE switch from T (TONE) to P
(PULSE)bT (TONE), and release the HANDSET LOCATOR
key to start up.
3. The TEST MODE B state will be set.
4. In test mode idling B, pressing the HANDSET LOCATOR
key with the P(PULSE)/T (TONE) switch set to T (TONE) state
switches to BASE UNIT TEST MODE B-1.
[CallWaiting ReceptionTest]
1. Set the audio signal route to the normal TALK state, and receive
the Caller ID Type 2 data (the CID signal timing conforms to the
regular specifications). If it could be received correctly, (deter-
mined by whether the checksum is correct), the New Call LED
is lit. At the same time, the VMWI LED is synchronized and
blinked.”
[StutterTone Detection]
1. Monitors the stutter tone detection terminal IC501 pin (∞
(Detect_In) at all times and lights the VMWI LED when 5 pulses
are detected like in actual operations.
HANDSET
LOCATOR
button
pressing
count
Radio mode
1ch single carrier continuous transmission mode
(high power)
10ch single carrier continuous transmission mode
(high power)
20ch single carrier continuous transmission mode
(high power)
1ch continuous transmission mode
(high power)
1ch continuous transmission mode (middle power)
1ch continuous transmission mode (low power)
10ch continuous transmission mode (high power)
10ch continuous transmission mode
(middle power)
10ch continuous transmission mode (low power)
20ch continuous transmission mode (high power)
20ch continuous transmission mode
(middle power)
20ch continuous transmission mode (low power)
1ch continuous reception mode
10ch continuous reception mode
20ch continuous reception mode
Returns to BASE UNIT TEST MODE • IDLING B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
*1 Radio block: TDD mode (master timing)
Audio block: Line speech status
*2 Radio block: Standby status
Audio block: Line open
DIAL MODE switch
T (TONE) side
P (PULSE) side
Idle status
Test Mode Idle B-1 *1
Test Mode Idle B-2 *2
4-2-1. BASE UNITTest Mode B-1
1. In test mode idling B with the P (PULSE)/T (TONE) switch set
to the T(TONE) state, pressing the HANDSET LOCATOR key
changes the mode as shown below.
2. Setting the P (PULSE)/T (TONE) switch from T (TONE) to P
(PULSE) in BASE UNIT test mode B-1 any time also enables
the mode to be changed to BASE UNIT test mode idling B.
Note: If the LEDs are lit due to the idling state test, clear all the
LEDs, and return to the idling state.
4-2-2. Ending the Base Unit Test Mode
1. To end the base unit test mode, turn off the power of the base
unit.
ANTENNA
Pickup coil
Frequency counter
Spec: 904.2 MHz ± 27KHz
[BASE UNIT carrier frequency measurement
[Single carrier 1CH continuous transmission]]
Setting:

18
4-3. HANDSETTEST MODE
[Start-Up]
1. Press the TALK , 0 , and 1 keys simultaneously to start.
2. The normal ringer is rung at a high level for 500 msec after start-
ing, and the TALK LED and BATT LOW LED blink together.
The HANDSET TEST MODE and idling state LEDs will re-
main lit.
3. The unit sets into the test command key input standby state. The
state can be changed to a desired test mode item by pressing a
command key.
4. In the HANDSET TESTMODE idling state, all LEDs are turned
ON (the state where the LCD backlight lights up).
[Battery Low DetectionTest]
1. In the HANDSET TEST MODE idling state, if Low Battery
is detected (if the battery input terminal (IC401 Pin &¶) is
grounded),the TALK (Basic)LEDgoes off.Aconfirmation beep
which lights up the BATT LOW LED sounds.
2. If the Low Battery state is cleared (if the battery input terminal
(IC401 Pin &¶)is releasedits grounding), theTALK (Basic)LED
is lit. The BATT LOW LED goes off and the previous HAND-
SET TEST MODE idling state is returned.
3. The mode cannot be changed to other HANDSETTEST MODE
with Low Battery detected (Battery input terminal (IC401 Pin
&¶) is grounded.
[Setting the Handset Test Mode by Test Command Key
Inputs]
Byentering testcommands from thekeypad intheHANDSETTEST
MODE, the following test items can be set.
• However, to set a test with a different test group, be sure to return
to test mode first and then set the desired mode.
A) Test Resetting
Command
0-0-#
0-1-#
Mode/Operation
Ends the test mode. Clears the EEPROM data. Sounds
the ACK beep if OK. Exits the test mode and returns to
the normal operating state.
Returns to test mode idling.
Note: In the continuous reception test, the “All 1’s Data” inASIC
should be used.
Command Mode/Operation
1ch continuous reception (LNA, AGC ON)
CH increment.
1ch n2ch n3ch n4ch n........ n20ch
1-1-#
*
Command Mode/Operation
1ch continuous transmission (TX power High)
1ch continuous transmission (TX power Mid)
1ch continuous transmission (TX power Low)
Single carrier 1ch continuous transmission
(TX power High)
CH increment
1ch n2ch n3ch n4ch n........ n20ch
2-1-#
2-2-#
2-3-#
2-4-#
*
Note: In the loopback test, the sound route of the handset is set to
the normal TALK state (Set Mic-in and SPKO to be effec
tive).
[Handset AUDIO Input/Output Level Measurement
[CODEC Forward Loopback (L1); 3-1-#]]
Setting:
Command Mode/Operation
CODEC Forward Loopback (L1)
(MIC nSP) (within CODEC)
ADPCM Forward Loopback (L2)
(MIC nCODEC nADPCM nCODEC nSP)
Does not function.
3-1-#
3-2-#
3-3-#
B) Continuous Reception Test
C) Continuous Transmission Test
Note: In the continuous reception test, the “All 1’s Data” inASIC
should be used.
Audio analyzer Level mete
r
Hand main mount
TP601
TP603
TP604
TP602
Setting: OSC=–41dBV
(Open terminal)
MOD=1kHz
osc out
Pickup coil
Frequency counter
ANTENNA
D) Loopback Test
[Handset AUDIO Input/Output Level Measurement
[CODEC Forward Loopback (L1); 2-4-#]]
Setting:
Spec: 904.2 MHz ± 27KHz
Spec: -27.5 to -23.5 dBV

19
Key matrix test
JOG shuttle test
LCD test
LED OFF
1) Press the One-Touch B key and turn off the LCD
Backlight LED. (CID/LCD)
2) Press the One-Touch B key and turn off the DIAL
LED. (CID/LCD)
3) Press the One-Touch B key and turn on all LEDs
and return to step 1. (CID/LCD)
Command Mode/Operation
5-1-#
5-2-#
5-3-#
5-4-#
E) MMI Test
Command Mode/Operation
Clears all EEPROM data.
Clears EEPROM ID data. If cleared successfully, sounds
theACK beep.
Battery Save Mode
7-0-#
7-1-#
9-0-#
Jig antenna
(Utilize the antenna for handset)
Spectrum
analyzer
10 cm
[Check theTransmission Wave]
Purpose
It is necessary to check spectrum wave of transmission wave which
is an important factor in order to confirm operational performance
of Spread Spectrum models. If this wave deviates from correct wave
form, normal data transmission cannot be made and, as a result of
that, possibility that occurrence of mute increases and communica-
tion distance becomes shorter will increase.
Measuring process
• Setting Spectrum analyzer:
Center frequency : 904.2 kHz (CH1)
RBW : 30 kHz
VBW : 30 kHz
Span : 3 MHz (or 5MHz)
• Setting Test mode:
Continuous Transmit mode (CH1 High Power)
(Refer to “Test Mode” on page 10)
• Measurement:
Measure transmitting wave.
• Specifications:
Acceptable level [XdB] difference between the highest peak and
the lowest peak of odd side band (the first to seventh side band
fromCenter Frequency;TransmissionFrequency f0: CH1)isunder
10 dB. (Refer Fig. 1 and Fig. 2)
If output wave form deteriorates, side band appears like Fig. 3
and Fig. 4.
4-4. RF TESTING
This test is for checking the RF system without disassembling the
set in servicing. Perform measurement using the spectrum analyzer
and jig antenna.
4-4-1. RFTesting method
Please follow the below instruction to perform RF test.
[Setting Condition]
Connect a receiving antenna to RF INPUT of Spectrum analyzer
and set the unit 10 cm (4 inches) away from the receiving antenna.
Measuring tool: Spectrum analyzer (equivalent to HP8595E)
Jig: Receiving antenna (for Spectrum analyzer)
10 cm
Spectrum
analyzer
Details
1. Key Matrix Test: 5-1-#
If the keys are pressed continuously in the following desig nated
order correctly, a confirmation beep sounds.
If pressed incorrectly, an error beep sounds and the unit re
turns to the idling state.
TALK nOFF nFLASH nREDIAL nPGM n
PAUSE n1 n2 n3 n4 n5 n6 n
7 n8 n9 nn0 n# nA nB nC
2. JOG shuttle test: 5-2-#
• When the JOG shuttle is rotated in the clockwise direction, R is
displayed on the LCD. When rotated in the counterclockwise
direction, L is displayed. When the JOG shuttle is pressed, P is
displayed. (1st line and digit of the LCD).”
3. LCD test mode: 5-3-#
• Set the mode which lights up all dots.
F) Others
*
4-3-1. Ending the HANDSET Test Mode
1. Entering the command “0-0-#” from the keypad in any state of
the HANDSET TEST MODE ends the HANDSET MODE and
returns the normal mode.

20
• Transmission Wave:
CENTER 904.2 MHz
RBW 30 KHz SPAN 5.000 MHz
SWP 50.0 msec
903.392 MHz
MKR –16.00 dBm
903.392 MHz
MKR
–16.00 dBm
ATTEN 10 dB
RL 0 dBm 10 dB/
VBW 30 kHz
Fig. 1
CENTER 904.2 MHz
RBW 30 KHz SPAN 5.000 MHz
SWP 50.0 msec
903.233 MHz
MKR –14.67 dBm
903.233 MHz
MKR
–14.67 dBm
ATTEN 10 dB
RL 0 dBm 10 dB/
VBW 30 kHz
Fig. 2
Fig. 3
[Check Center Frequency]
Measuring process
• Setting Spectrum analyzer:
Center frequency : 904.2 MHz (CH1)
RBW : 10 kHz
VBW : 10 kHz
Span : 1 MHz
• Setting Test mode:
Continuous Transmit mode (CH1 High Power)
(Refer to “Test Mode” on page 16)
• Measurement:
Measure transmitting wave f0(Formula of center frequency)
(Refer Fig. 5)
• Specification:
904.2 MHz ± 27 kHz
• Center Frequency:
Fig. 4
Fig. 5
[ConfirmTransmitting output]
Measuring process
• Setting Spectrum analyzer:
Center frequency : 904.2 MHz (CH1)
RBW : 1 MHz
VBW : 100 kHz
Span : 5 MHz
• Setting Test mode:
Continuous Transmit mode (CH1 High Power)
(Refer to “Test Mode” on page 16)
–9
–8
–7
–6
–5
–4
–3–2
–1 1
2
345
67
8
9
18dB
f –1
f –2
f 0
f 1
f 2PN
Tr-A
10dB/
CENTER 904.2 MHz
RBW 30 KHz SPAN 5.000 MHz
SWP 50.0 msec
903.233 MHz
MKR –14.67 dBm
903.233 MHz
MKR
–14.67 dBm
ATTEN 10 dB
RL 0 dBm 10 dB/
VBW 30 kHz