Sony SPP-S9003 Service Manual
SPP-S9003
SERVICE MANUAL
E Model
SPECIFICATIONS
CORDLESS TELEPHONE
MICROFILM
1
TABLE OF CONTENTS |
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1. GENERAL .......................................................................... |
3 |
2. DISASSEMBLY |
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2-1. Battery Case LID (Handset) .................................................. |
6 |
2-2. Cabinet (Rear) (Handset) ...................................................... |
6 |
2-3. Hand Main Board (Handset) ................................................. |
6 |
2-4. Cabinet and Boards (Base Unit) ........................................... |
6 |
3. 900 MHz SYSTEM OPERATION |
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3-1. Access Method ...................................................................... |
7 |
3-2. Protocol ................................................................................. |
7 |
4. TEST MODE |
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4-1. Base Unit Test Mode A ....................................................... |
10 |
4-2. Base Unit Test Mode B ....................................................... |
11 |
4-3. Handset Test Mode .............................................................. |
12 |
4-4. RF Testing ........................................................................... |
13 |
5. ELECTRICAL ADJUSTMENTS |
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5-1. Base Unit Section ................................................................ |
16 |
5-2. Handset Section .................................................................. |
17 |
6. DIAGRAMS |
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6-1. IC Block Diagram ............................................................... |
19 |
6-2. Printed Wiring Board – Base Unit Section – ...................... |
20 |
6-3. Schematic Diagram – Base Unit (1/2) Section – ................ |
22 |
6-4. Schematic Diagram – Base Unit (2/2) Section – ................ |
23 |
6-5. Printed Wiring Board – Handset Section – ......................... |
24 |
6-6. Schematic Diagram – Handset Section – ............................ |
25 |
6-7. IC Pin Functions ................................................................. |
26 |
7. EXPLODED VIEWS |
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7-1. Handset Section .................................................................. |
29 |
7-2. Base Unit Section ................................................................ |
30 |
8. ELECTRICAL PARTS LIST ........................................ |
31 |
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.
2
SECTION 1 GENERAL
This section is extracted from instruction manual.
4
5
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
2-1. BATTERY CASE LID (HANDSET) |
2-2. CABINET (REAR)(HANDSET) |
Cabinet (rear)
Nickel cadmium battery
Battery case lid |
2 |
3 Two screws (BTP 2.6x8) |
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1
1
1
2-3. HAND MAIN BOARD (HANDSET) |
2-4. CABINET AND BOARDS (BASE UNIT) |
1 Two screws (BTP 2.6x8)
Hand main board
4
2Screw (BTP 2.6x12) |
6 Antenna terminal |
4 Three connectors |
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5 Cabinet (Upper) |
3 Screw (BTP 2.6x8) |
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8 Base (Main)
board
5 Connector (CN601)
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7 Four screws |
!™ Lens |
(P3x10) |
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(Basic) |
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!¡ Button (H.L.)
Helical antenna
0 LED board |
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9 Two screws |
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(BTP2.6x8) |
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3 Cabinet (Lower) assy |
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2 Two screws |
1 Two screws |
(P3x10) |
(P3x10) |
6
SECTION 3
900 MHz SYSTEM OPERATION
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 |
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Channel spacing |
1.2 MHz |
Modulation method |
DBPSK |
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Baseband transfer rate |
960 Kbps |
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Spread method |
Direct Sequence Spread Spectrum |
Chip rate |
12 chips/bit |
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Data transfer rate |
80 Kbps |
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2. Channel Number & Frequencies
RF channels occupy the frequency band 902 – 928 MHz are numbered 1 to 14.
RF channel numbers & center frequencies are specified as follows.
Table 3-2. Channel number & Channel frequency
Channel |
Channel Center Frequency (MHz) |
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UNIT CH PLAN |
TEST MODE CH PLAN |
1 |
907.2 |
904.2 |
2 |
908.4 |
904.8 |
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3 |
909.6 |
906.0 |
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4 |
910.8 |
907.2 |
5 |
912.0 |
908.4 |
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6 |
913.2 |
909.6 |
7 |
914.4 |
910.8 |
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8 |
915.6 |
912.0 |
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9 |
916.8 |
913.2 |
10 |
918.0 |
914.4 |
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919.2 |
915.6 |
12 |
920.4 |
916.8 |
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13 |
921.6 |
918.0 |
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14 |
922.8 |
919.2 |
15 |
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920.4 |
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16 |
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921.6 |
17 |
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922.8 |
18 |
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924.0 |
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19 |
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925.2 |
20 |
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925.8 |
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*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.
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 initiated 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 HANDSET, 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 Initial Acquisition 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 Reinitialization.
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 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 HANDSET send the A-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.
BASE UNIT |
HANDSET |
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(PARK) |
(Park Detect) |
(Park Detect) |
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System Parameters |
A-Frame
System ID
confirmed
A-Frame
System ID
confirmed
Fig. 3-1. System Parameters Re-initialization
7
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, because the HANDSET is the battery operation.
This process of stand-by mode operation is as follows.
10 sec |
10 sec |
Heart-Beat
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10 sec |
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Heart-Beat |
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1 sec |
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Heart-Beat |
1 sec |
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RX |
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RX |
RX |
RX |
RX |
RX |
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1 sec |
2 msec |
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2 msec |
10 msec |
10 msec |
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RX |
TX RX |
RX |
Heart Beat
(Exchange A-Frame for Link confirmation purpose)
Fig. 3-2. Stand-by mode operation (HANDSET)
(2)BASE UNIT
The BASE UNIT is supplied the power by AC 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 interference, the system needs the clear channel information as a part of system parameter for a channel hop.
If the BASE UNIT can not receive the A-Frame of Heart-beat from the HANDSET, it become “link error”, and the system become error recovery mode.
8
5. Link Establishment
According to the following Fig. 3-1, the requested side for link establishment is the master.
The system have to exchange the A-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 follows.
Master |
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Slave |
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A-Frame |
System ID |
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System ID |
A-Frame |
confirmed |
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confirmed |
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V-Frame |
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V-Frame
V-Frame
V-Frame
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Fig. 3-3. Link Establishment protocol |
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Master |
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TX |
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RX |
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TX |
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Time Slot |
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Master TX |
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Master RX |
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Slave RX |
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Slave TX |
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Trip Delay
Fig. 3-4. Link Establishment Timing Chart
6. State Change/Tarmination
After the RF link between HANDSET and BASE UNIT was established, 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.
9
SECTION 4 TEST MODE
4-1. BASE UNIT TEST MODE A
Manual System Test Mode
[Start-up] |
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1. Set the |
DIAL MODE |
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switch to P (PULSE), and turn on the |
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power while pressing the |
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key. |
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HANDSET LOCATOR |
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2.Change the DIAL MODE switch from P (PULSE) to T (TONE) bP (PULSE), and release the HANDSET LOCATOR
key to start up.
3.After starting up Test Mode A, perform dial test.
4.The TEST MODE A state will be set after the dial test.
5. In test mode idling A, pressing the HANDSET LOCATOR key with the P (PULSE)/T (TONE) switch set to P (PULSE) state switches to BASE UNIT TEST MODE A-1.
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Idle status |
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DIAL MODE |
switch |
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P (PULSE) side |
Test Mode Idle A-1 |
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T (TONE) side |
Test Mode Idle A-2 |
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[Dial Test]
After starting BASE UNIT TEST Mode A, close the circuit for about 500 msec after start, and dial PAUSE , 0 (DP), wait 2 seconds, 1 (Tone), 4 (Tone), 8 (Tone), # (Tone) in this order.
[Ring Detect Test]
1.Rings the Normal Ringer synchronized with an external call coming in, and blinks the IC501 Pin !™(New Call LED/VMWI LED)
at the same time.
[Charge Detection and ART0 Output Test]
1.Detects that the charge detection terminal IC501 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 Control Test]
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 Detection Test]
When the shared phone is detected to be off the hook and the Branch detection terminal IC501 Pin (¢ (EXT_DET) detects L, the VMWI LED is lit. When off-hook is detected and the Branch detection terminal IC501 Pin (¢ (EXT_DET) detects H, the VMWI LED is turned off.
4-1-1. BASE UNIT Test 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 enables the mode to be changed to the BASE UNIT test mode idling A.
• This mode is intended for checking that the IC501 line is operating properly. Add the LINEIN signal and check that the signal is output to the SPEAKER OUT.
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HANDSET |
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LOCATIOR |
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button |
Test mode |
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pressing |
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count |
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1 |
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CODEC Forward Loopback (L1) |
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(Line: Talking state) |
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(CODEC LINE IN nSPEAKER OUT) |
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2 |
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ADPCM Forward Loopback (L2) |
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(Line: Talking state) |
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(CODEC LINEIN nADPCM |
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nCODEC SPERKER OUT) |
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3 |
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Does not function |
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4 |
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Returns to BASE UNIT TEST MODE • IDLING A |
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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]]
Audio analyzer |
Level meter |
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osc out
TP101
TP102
TP911 |
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GND |
• Short: TP911 GND |
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TP912 |
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Base main mount |
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Setting:
Setting: OSC=–13.0 dBV (Open terminal)
MOD=1 kHz
10
4-2. BASE UNIT TEST MODE B
Manual System Test Mode |
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[Start-up] |
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1. |
Set the |
DIAL MODE |
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switch to T (TONE), and turn on the |
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power while pressing the |
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key. |
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HANDSET LOCATOR |
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2. |
Change the |
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switch from T (TONE) to P |
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DIAL MODE |
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(PULSE)bT (TONE), and release the |
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HANDSET LOCATOR |
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key to start up. |
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3. |
The TEST MODE B state will be set. |
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4. |
In test mode idling B, pressing the |
HANDSET LOCATOR |
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key with the P (PULSE)/T (TONE) switch set to T (TONE) state switches to BASE UNIT TEST MODE B-1.
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Idle status |
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DIAL MODE |
switch |
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T (TONE) side |
Test Mode Idle B-1 *1 |
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P (PULSE) side |
Test Mode Idle B-2 *2 |
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*1 |
Radio block: TDD mode (master timing) |
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Audio block: Line speech status |
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*2 |
Radio block: Standby status |
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Audio block: Line open |
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[Stutter Tone Detection]
1.Monitors the stutter tone detection terminal IC501 pin (° (Stutte_Det) at all times and lights the VMWI LED when 5 pulses are detected like in actual operations.
4-2-1. BASE UNIT Test 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.
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HANDSET |
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LOCATOR |
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button |
Radio mode |
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pressing |
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count |
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1 |
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1ch single carrier continuous transmission mode |
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(high power) |
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2 |
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10ch single carrier continuous transmission mode |
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(high power) |
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3 |
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20ch single carrier continuous transmission mode |
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(high power) |
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4 |
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1ch continuous transmission mode |
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(high power) |
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5 |
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1ch continuous transmission mode (middle power) |
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6 |
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1ch continuous transmission mode (low power) |
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7 |
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10ch continuous transmission mode (high power) |
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8 |
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10ch continuous transmission mode |
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(middle power) |
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9 |
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10ch continuous transmission mode (low power) |
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10 |
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20ch continuous transmission mode (high power) |
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11 |
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20ch continuous transmission mode |
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(middle power) |
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12 |
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20ch continuous transmission mode (low power) |
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13 |
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1ch continuous reception mode |
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14 |
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10ch continuous reception mode |
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15 |
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20ch continuous reception mode |
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16 |
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Returns to BASE UNIT TEST MODE • IDLING B |
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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.
[BASE UNIT carrier frequency measurement [Single carrier 1CH continuous transmission]]
Setting:
ANTENNA
Pickup coil
Frequency counter
Spec: 904.2 MHz ± 27KHz
11
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