Sony SPP-SS955 - Cordless Telephone User manual
– 2 –
TABLE OF CONTENTS
1. SERVICING NOTES............................................... 3
2. GENERAL
Setting up the base phone ............................................... 4
Preparing the battery pack .............................................. 4
Making calls .................................................................... 5
Receiving calls ................................................................ 6
Speed dialing ................................................................... 6
Switching the phones during a call................................. 7
Talking between the phones (Intercom) ......................... 7
Voice paging .................................................................... 7
Transferring a call ........................................................... 7
Mounting the base phone on a wall ................................ 8
Checking the package contents....................................... 8
3. DISASSEMBLY ......................................................... 9
4. 900 MHz SYSTEM OPERATION
4-1. Access Method ................................................................ 12
4-2. Protocol ........................................................................... 12
5. TEST MODE
5-1. Base Unit ......................................................................... 15
5-2. Handset ............................................................................ 16
5-3. RF Testing ....................................................................... 17
6. ELECTRICAL ADJUSTMENTS
6-1. Base Unit Section............................................................ 19
6-2. Handset Section............................................................... 20
7. DIAGRAMS
7-1. Block Diagram – BASE UNIT Section – ...................... 23
7-2. Block Diagram – HANDSET Section –........................ 25
7-3. Notes for Printed Wiring Boards
and Schematic Diagrams ................................................ 27
7-4. Printed Wiring Board
– BASE MAIN Board (Side A)/
BASE MICROPHONE Board (Side A) –....................... 27
7-5. Printed Wiring Board
– BASE MAIN Board (Side B)/
BASE MICROPHONE Board (Side B) –....................... 29
7-6. Schematic Diagram – BASE MAIN Section (1/3) – .... 31
7-7. Schematic Diagram – BASE MAIN Section (2/3) – .... 33
7-8. Schematic Diagram – BASE MAIN Section (3/3) – .... 35
7-9. Printed Wiring Board – BASE KEY Section – ............. 37
7-10. Schematic Diagram – BASE KEY Section – ................ 38
7-11. Printed Wiring Board – HANDSET Section –.............. 39
7-12. Schematic Diagram – HANDSET Section –................. 41
7-13. IC Pin Function Description ........................................... 43
8. EXPLODED VIEWS................................................ 51
9. ELECTRICAL PARTS LIST ............................... 53
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged 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 PUB-
LISHED BY SONY.
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 3 –
SECTION 1
SERVICING NOTES
CABLE FASTENING METHOD
• TDD noise may be generated in the intercom or handset speech
depending on how the cables are fastened, and therefore fasten
the cables as shown below.
1Erect the cabinet (upper) 90 degrees.
2Insert the wires in the ribs at Aand B.
3Clamp them at Cand D.
4Affix the sponges at Eand Fpositions.
5Fix the cables with tapes at Gto Lpositions.
Cable fasting direction
Cable fasting direction
OK
NG
Note:Make sure the wires do not
rise above the shield plate.
AG
L
K
F
J
E
I
D
H
B
Note:Tape over the
diode (D1001).
Direction for drawing
speaker lead wires
black
white
90
°
red
C
clamp stopper
Cable fasting direction
25~30 mm
Affix position
Bottom flushed
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 9 –
• HANDSET
REAR CABINET
Note: Follow the disassembly procedure in the numerical order given.
SECTION 3
DISASSEMBLY
2
two screws
(BTP 2.6
×
10)
1
Remove the battery case lid
to direction of the arrow
A
.
A
4
claw
3
two claws
3
two claws
5
Remove the rear cabinet to
direction of the arrow
B
.
B
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 10 –
HAND MAIN BOARD
3
screw
(BTP2.6
×
8)
1
connector
(CN401)
2
four screws
(P3
×
16)
1
connector
(CN302)
3
three screw
s
(BTP2.6
×
8
)
4
Removal of the HAND MAIN
board direction of the arrow
A
.
A
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 11 –
• BASESET
BASESET (UPPER) ASS’Y
1
two screws
(P3
×
10)
1
two screws
(P3
×
10)
2
two claw
s
3
baseset (upper) ass’y
BASE MAIN BOARD
5
BASE MAIN board
2
four screws
(P3
×
16)
1
four screws
(BTP2.6
×
8)
4
Connector
(CN202)
4
Connector
(CN601)
3
Connector
(CN801)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 12 –
SECTION 4
900 MHz SYSTEM OPERATION
4-1. Access method
1.Transfer format & rate
The transfer format & rate of our system is as follows;
Table 4-1.Transfer method
Access method FDMA-TDD
Channel number 20 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 20.
RF channel numbers & center frequencies are specified as fol-
lows.
Table 4-2. Channel number & Channel frequency
Channel Channel Center Channel Channel Center
Number Frequency (MHz) Number Frequency (MHz)
1 903.6 11 915.6
2 904.8 12 916.8
3 906.0 13 918.0
4 907.2 14 919.2
5 908.4 15 920.4
6 909.6 16 921.6
7 910.8 17 922.8
8 912.0 18 824.0
9 913.2 19 925.2
10 914.4 20 926.4
4-2. 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 BS and HS, but the initiated side is the mas-
ter 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 BS and HS, both of BS
and HS need to have the same system ID. When “power” is ap-
plied to this system, the system have to do Initial Acquisition in
order to have the same system ID. It is to exchange a parameter
when the HS is parked on the BS, as soon as the system do System
Parameters Re-initialization.
3. System parameter re-initialization
This System Parameters Re-initialization can realize that the HS
is parked on the BS. So after the BS recognized to be parked the
HS, the BS calculates 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 HS send theA-Frame to the
BS after the HS received the system parameter, and then the BS
send the A-Frame to the HS. The process of System Parameters
Re-initialization is as follows.
Fig. 4-1. System Parameters Re-initialization
Base Station Handset
System ID
confirmed
System ID
confirmed
(Park Detect)(Park Detect)
(PARK)
System Parameters
A-Frame
A-Frame
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 13 –
4. Stand-by Mode Operation
(1) HS
When the HS is the stand-by mode (sleep mode), the HS do
the intermittent operation for power save, because the HS is
the battery operation.
This process of stand-by mode operation is as follows.
(2) BS
The BS is supplied the power by AC line. While the BS is the
stand-by, the BS is always a wake state. While the BS moni-
tors the current channel, the BS monitors also the other chan-
nel 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 BS can not receive the A-Frame of Heart-beat from the
HS, it become “link error”, and the system become error re-
covery mode.
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. 4-2. Stand-by mode operation (HS)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 14 –
5. Link Establishment
According to the following Fig. 4-1, 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.
6. State Change/Termination
After the RF link between HS and BS was established, a move-
ment 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.
Fig. 4-3. Link Establishment protocol
Master Slave
System ID
confirmed
System ID
confirmed
A-Frame
A-Frame
V-Frame
V-Frame
V-Frame
V-Frame
Fig. 4-4. Link EstablishmentTiming Chart
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
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 15 –
5-1. BASE UNIT
[Start-up]
1. Set the [DIALMODE] switch to the P (PULSE) side.
2. Keeping the [INTERCOM] button pressed, turn the power on.
3. After a start-up acknowledge tone sounds, set the [DIALMODE]
switch from P (PULSE) toT (TONE) side, then return to the P
(PULSE) side.
4. Release the[INTERCOM] button, and theTest Mode will start.
5. Allow for normal ringer to sound at high level for duration of
500 msec after start-up, then close the line and dial Pause →0
(DP) →(mode change) →1 (tone) →4 (tone) →8 (tone)
→# (tone).
6. After dialing, the base unit will go in Test Mode Idle status.
[Ring DetectionTest]
1. The LINE LED blinks in synchronization with the RING sgnal
and at the same time, Normal Ringer sounds, if the RING sig-
nal is detected in the Test Mode Idle status.
[Charge Detection • ARTO OutputTest]
1. Square-wave signal (2.4 kHz) is output to the IC751 pin #¢
(ARTO terminal) when the CHARGE signal is detected (IC751
pin ^™ (PARKP terminal) H →L) in the Test Mode Idle sta-
tus.
2. At this time, the EEPROM (IC951) is reset.
[Charge ControlTest]
1. IC751 pin *¶ (CHG-HIGH RATE terminal) outputs H →L →
H once, if IC751 pin *£ (VCHG-MON terminal) changes to H
→L →H when the CHARGE signal is detected in the Test
Mode Idle status.
[Test Mode by Manual Input]
• The key input in the Test Mode Idle status can change the set
status to the following modes. However, the transition to an-
other mode within respective test mode groups (A-J) is possible
directly, but in case of transition to other test mode group, the
set must be returned to the Test Mode Idle status once by enter-
ing the command “0-1-#”.
A) Test mode termination
Command Mode/Operation
0-0-# Terminate the Test mode.
B) Return test mode idle
Command Mode/Operation
0-1-# Return to Test Mode Idle status.
C) Continuous receiving test group (Note 1)
Command Mode/Operation
1-1-# CH1 continuous receiving status (LNA, AGC ON)
D) Continuous transmission test group (Note 1)
Command Mode/Operation
2-1-# CH1 continuous transmission status (TX Power High)
2-2-# CH1 continuous transmission status (TX Power Mid)
2-3-# CH1 continuous transmission status (TX Power Low)
Note 1: Each time the [*] key is pressed, the channels change over as
follows:
CH1 →CH2 →CH3 →…→CH20
SECTION 5
TEST MODE
E) Loopback test group 1
Command Mode/Operation
3-1-# CODEC Forward Loopback (L1)
(Speech path: Talk status)
(LINE IN →LINE OUT: CODEC LINE IN→
SPKR OUT)
3-2-# ADPCM Forward Loopback (L2)
(Speech path: Talk status)
(LINE IN →CODEC →ADPCM →CODEC →
LINE OUT)
3-3-# ADPCM →RF Loopback
(Speech path: Talk status)
(LINE IN →CODEC →ADPCM →RF →ADPCM
→CODEC →LINE OUT)
F) TDD test group 1
Command Mode/Operation
4-1-# CH1 TDD mode (Master timing, Power High) status
4-2-# CH1 TDD mode (Master timing, Power Mid) status
4-3-# CH1 TDD mode (Master timing, Power Low) status
4-4-# TDD mode (Slave timing, Standby) status. Power
(Note 2) control
Note 2: To make a speech with the handset, first operate the set in Slave
mode by “4-4-#” command, and operate the counterpart in the
Master mode by “6-1-#” command. However, the ID must be
same. To set the same ID, perform ON-Charge in advance, or
clear the EEPROM by “7-1-#” command. In this case, however,
the speech path should be the intercom status.
G) MMI test group
Command Mode/Operation
5-1-# Key test.
• Press the keys successively in the following
order:
[PGM] →[SPEEDDIAL] →[REDIAL/PAUSE]
→[FLASH] →[1] →[2] →[3] →[4] →[5]
→[6] →[7] →[8] →[9] →[*] →[0] →
[#] →[INTERCOM] →[HOLD] →
[SPEAKERPHONE]
• If key input sequence is correct: An acknowl-
edge tone sounds, and the set returns to theTest
Mode Idle status.
• If key input sequence is wrong: An error tone
sounds, and the set returns to the Test Mode
Idle status.
H) TDD test group 2
Command Mode/Operation
6-1-# TDD mode (Master timing) status. Power control.
Refer to the description of “4-4-#” command.
I) Memory clear test group
Command Mode/Operation
7-1-# The contents of EEPROM are cleared. In case of
successful clear, an acknowledge tone sounds.
J) Loopback test group 2
Command Mode/Operation
8-1-# ADPCM Forward Loopback
(Speech path: Intercom status)
(MIC IN →SPEAKER OUT: CODEC MIC IN →
ADPCM →CODEC LINE OUT
(Speech path: Intercom status)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 16 –
5-2. HANDSET
[Start-up]
1. With the power supplied, press [TALK], [0], and [1] keys simul-
taneously, and the Test Mode will start.
2. Allow for normal ringer to sound at high level for duration of
500 msec after start-up, then the handset will go in Test Mode
Idle status.
3. The RF in Talk/Intercom status is as follows.
TALK LED lights up.
[Test Mode by Manual Input]
• The key input in the Test Mode Idle status can change the set
status to the following modes. However, the transition to an-
other mode within respective test mode groups (A-J) is possible
directly, but in case of transition to other test mode group, the
set must be returned to the Test Mode Idle status once by enter-
ing the command “0-1-#”.
A) Test mode termination
Command Mode/Operation
0-0-# The Test mode terminates. The contents of EEPROM
are cleared. In case of successful clear, an
acknowledge tone sounds.
B) Return test mode idle
Command Mode/Operation
0-1-# Return to Test Mode Idle status.
C) Continuous receiving test group (Note 1)
Command Mode/Operation
1-1-# CH1 continuous receiving status (LNA, AGC ON)
D) Continuous transmission test group (Note 1)
Command Description
2-1-# CH1 continuous transmission status (TX Power High)
2-2-# CH1 continuous transmission status (TX Power Mid)
2-3-# CH1 continuous transmission status (TX Power Low)
Note 1: Each time the [*] key is pressed, the channels change over as
follows:
CH1 →CH2 →CH3 →…→CH20
E) Loopback test group 1
Command Mode/Operation
3-1-# CODEC Forward Loopback (L1)
(MIC →SP) (within CODEC)
3-2-# ADPCM Forward Loopback (L2)
(MIC →CODEC →ADPCM →CODEC →SP)
3-3-# ADPCM →RF Loopback
(MIC →CODEC →ADPCM →RF →ADPCM →
CODEC →SP)
F) TDD test group 1
Command Mode/Operation
4-1-# CH1 TDD mode (Master timing, Power High) status
4-2-# CH1 TDD mode (Master timing, Power Mid) status
4-3-# CH1 TDD mode (Master timing, Power Low) status
4-4-# TDD mode (Slave timing, Standby) status. Power
control
G) MMI test group
Command Mode/Operation
5-1-# Key test.
• Press the keys successively in the following
order:
[TALK/FLASH] →[OFF] →[HOLD] →
[PGM] → [INTERCOM] →[REDIAL/PAUSE]
→[1] →[2] →[3] →[4] →[5] →[6] →
[7] →[8] →[9] →[*] →[0] →[#] →
[SPEEDDIAL]
• If key input sequence is correct: An acknowl-
edge tone sounds, and the set returns to the Test
Mode Idle status.
• If key input sequence is wrong:An error tone
sounds, and the set returns to the Test Mode
Idle status.
H) TDD test group 2
Command Mode/Operation
6-1-# TDD mode (Master timing) status.
I) Memory clear test group
Command Mode/Operation
7-1-# The contents of EEPROM are cleared. In case of
successful clear, an acknowledge tone sounds.
J) Battery save mode
Command Mode/Operation
9-0-# Battery Save mode.
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 17 –
5-3. RF TESTING
This test is for checking the RF system without disassembling the
set in servicing. Perform measurement using the spectrum ana-
lyzer and jig antenna.
5-3-1.RF Testing 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)
• Transmission Wave:
Jig antenna
(Utilize the antenna for handset)
Spectrum
analyzer
10 cm
Spectrum
analyzer
10 cm
[Check the Transmission 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
communication distance becomes shorter will increase.
Measuring process
• Setting Spectrum analyzer:
Center frequency : 903.6 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 15)
• 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
from Center Frequency ; Transmission Frequency f0: CH1) is
under 10 dB. (Refer Fig. 1 and Fig. 2)
If output wave form deteriorates, side band appears like Fig. 3
and Fig. 4.
CENTER 903.600 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
–9
–8
–7
–3
–1
–2
–4
–5
–6 1
2
34
56
7
8
9
f
–1
f
1
f
0
XdB
Fig. 2
CENTER 903.600 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. 3
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 18 –
[Check Center Frequency]
Measuring process
• Setting Spectrum analyzer:
Center frequency :903.6 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 15)
• Measurement:
Measure transmitting wave f0(Formula of center frequency)
(Refer Fig.5)
• Specification:
903.6 MHz ± 27 kHz
• Center Frequency:
Fig. 4
–9
–8
–7
–6
–5
–4
–3–2
–1 1
2
345
67
8
9
18dB
[ConfirmTransmitting output]
Measuring process
• Setting Spectrum analyzer:
Center frequency :903.6 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 15)
Fig. 5
f
–1
f
–2
f
0
f
1
f
2PN
Tr-A
10dB/
• Measurement:
Measure peak level by Spectrum analyzer.
DATA (UNIT; dbm)
NO HANDSET BASESET
HIGH MID LOW HIGH MID LOW
1 –3.93 –20.95 -34.53 –2.36 –19.17 –32.81
2 –3.70 –20.36 –33.75 –1.52 –18.33 –30.79
3 –4.47 –21.48 –34.78 –4.36 –18.65 –33.3
4 –4.64 –21.85 –35.12 –4.25 –19.37 –33.05
5 –4.52 –21.18 –35.54 –2.35 –19.05 –32.95
6 –4.02 –21.57 –35.12 –2.96 –19.14 –33.45
7 –5.03 –22.14 –35.45 –4.12 –19.12 –33.01
8 –5.58 –22.35 –35.61 –2.89 –18.56 –32.12
9 –4.03 –21.32 –35.82 –5.01 –18.33 –32.41
10 –4.43 –19.69 –33.92 –2.74 –17.28 –31.33
×–4.435 –21.29 –34.96 –3.256 –18.7 –32.52
σ0.5336 0.7634 0.6747 1.0562 0.5895 0.8273
× + 4σ–2.301 –18.24 –32.27 0.9687 –16.34 –29.21
× – 4σ–6.569 –24.34 –37.66 –7.481 –21.06 –35.83
• Specification:
HANDSET MIN –17 dBm
(at High power: Include location loss)
BASE SET MIN –18 dBm
(at High power: Include location loss)
CENTER 903.600 MHz
RES BW 1.0 MHz SPAN 5.000 MHz
SWP 20.0 msec
903.587 MHzMKR –3.67 dBmAT 10 dB.0 dBmREF
PEAK
LOG
WA SB
SC FC
CORR
PLOTTER ADRS
10
dB/
VBW 100 kHz
0
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 19 –
SECTION 6
ELECTRICAL ADJUSTMENTS
6-1. BASE UNIT SECTION
• Make the set in Test mode (see page 15)
1. Checking RX I&Q Output Level
Setting:
Procedure:
1. Place the base unit in the Continuous Receive mode (CH1,
LNA ON, AGC ON).
2. Set the SSG frequency to the frequency on CH1 + 300 kHz,
and the RF output level to –95 dBm.
3. Measure the output level of RXIN, RXIP, RXQN and RXQP
with a level meter. At this time, confirm with an oscilloscope
that a sine wave of 300 kHz is output.
4. Confirm that the measured output level is –26.0 to 19.0 (TYPI-
CAL –22.0) dBV. If IC951 was replaced (there is no ID data),
the output level is –31.0 to –24.0 dBV.
5. Also, execute steps 1 through 4 for the channels 10 and 20.
* For the frequency on each channel, see page 12.
2. CheckingTX Center Frequency
Setting :
• short: TP918 ↔TP919
Procedure:
1. Short TP918 and TP919 (GND) on the BASE MAIN board in
the base unit.
2. Place the base unit in the Continuous Transmit mode (CH1,
High power).
3. Measure the ANT OUT frequency of the RF module in the
base unit using a frequency counter.
4. Confirm that the measured frequency is 903.600 MHz ±
27 kHz.
5. Also, execute steps 1 through 4 for the channels 10 and 20.
3. Checking TX Output
Setting:
Procedure:
1. Place the base unit in the Continuous Transmit mode (CH1,
High power).
2. Measure the ANT OUT output of the RF module in the base
unit using a peak power meter.
3. Confirm that the measured output is 80 mW (MIN 30 mW).
4. Also, execute steps 1 through 4 for the channels 10 and 20.
CH10: 80 mW (MIN 30 mW)
CH20: 75 mW (MIN 25 mW)
+
level meter
oscilloscope
–
+
–
TP906: RXIP
TP905: RXIN
TP904: RXQ
P
TP903: RXQ
N
TP919: GND
SSG
ANTENNA TERMINA
L
+
frequency counter
ANTENNA TERMINA
L
–
+
peak power meter
–ANTENNA TERMINA
L
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
– 20 –
6-2. HANDSET SECTION
• Make the set in Test mode (see page 16)
1. Checking RX I&Q Output Level
Setting:
Procedure:
1. Place the handset in the Continuous Receive mode (CH1, LNA,
AGC ON).
2. Set the SSG frequency to the frequency on CH1 + 300 kHz,
and the RF output level to –95 dBm.
3. Measure the output level of RXIN, RXIP, RXQN, and RXQP
with a level meter. At this time, confirm with an oscilloscope
that a sine wave of 300 kHz is output.
4. Confirm that the measured output level is –26.0 to 19.0 (TYPI-
CAL –22.0) dBV. If IC502 was replaced (there is no ID data),
the output level is –31.0 to –24.0 dBV.
5. Also, execute steps 1 through 4 for the channels 10 and 20.
* For the frequency on each channel, see page 12.
2. CheckingTX Center Frequency
Setting:
• short: TP555 ↔TP553
Procedure:
1. Short TP555 and TP553 (GND) on the HAND MAIN board in
the handset.
2. Place the handset in the Continuous Transmit mode (CH1, High
power).
3. Measure theANT OUT frequency ofthe RF modulein thehand-
set using a frequency counter.
4. Confirm that the measured frequency is 903.600 MHz ±
27 kHz.
+
level meter
oscilloscope
–
+
–
TP520: RXIP
TP521: RXIN
TP522: RXQ
P
TP523: RXQ
N
TP553: GND
SSG
ANTENNA TERMINA
L
+
frequency counter
ANTENNA TERMINA
L
–
3. CheckingTX output
Setting:
Procedure:
1. Place the handset in the Continuous Transmit mode (CH1, High
power).
2. Measure the ANT OUT output of the RF module in the hand-
set using a peak power meter.
3. Confirm that the measured output is 80 mW (MIN 20 mW).
4. Also, execute steps 1 through 3 for the channels 10 and 20.
CH10: 80 mW (MIN 20 mW)
CH20: 50 mW (MIN 10 mW)
+
peak power meter
–ANTENNA TERMINA
L
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
Other manuals for SPP-SS955 - Cordless Telephone
3
Table of contents
Other Sony Cordless Telephone manuals
Sony
Sony SPP-Q120 User manual
Sony
Sony SPP-A60 Primary User manual
Sony
Sony SPP-800 User manual
Sony
Sony SPP-A985 - Cordless Telephone With Answering... User manual
Sony
Sony SPP-N1023 User manual
Sony
Sony SPP-206 User manual
Sony
Sony SPP-A700 Primary User manual
Sony
Sony SPP-A400 - Cordless Telephone With Answering... User manual
Sony
Sony SPP-A945 User manual
Sony
Sony SPP-A941 - Cordless Telephone With Answering... Quick start guide
Sony
Sony SPP-68 User manual
Sony
Sony SPP-900 - Cordless 900mhz Telephone User manual
Sony
Sony SPP-IM982 - 900mhz Cordless Telephone User manual
Sony
Sony SPP-A2480 - Cordless Telephone With Answering... User manual
Sony
Sony SPP-A700 Primary User manual
Sony
Sony SPP-S2730 - Cordless Telephone User manual
Sony
Sony SPP-M932 Primary User manual
Sony
Sony SPP-A973 - Cordless Telephone With Answering... User manual
Sony
Sony SPP-M920 Primary User manual
Sony
Sony SPP-ID970 - Cordless Telephone User manual
