Sony SPP-H273 Service manual
SPP-H273
SERVICE MANUAL
Ver 1.1 2001.08
SPECIFICATIONS
General
Spread method Direct-Sequence Spread-Spectrum
Access method FDMA-TDD
Frequency band 2.4075 - 2.4720 GHz
Operating channel 40 channels
Supplied accessories Charger/AC power adaptor (AC-T127)
US Model
Canadian Model
Rechargeable battery pack (BP-T38)
Sticker (for station number/Answering function)
(1 sheet)
Cordless handset
Power source Rechargeable battery pack BP-T38
Battery life Standby: Approx. 6 days
Talk: Approx. 5 hours
Battery charging time Approx. 12 hours
Dimensions Approx. 2 3⁄8 x 6 5⁄8 x 1 15⁄16 inches (w/h/d), antenna
Mass Approx. 8.1 oz (approx. 230 g), battery included
Charger
Power source DC 9 V from AC power adaptor
Dimensions Approx. 3
Mass Approx. 2.7 oz (approx. 75 g)
Design and specifications are subject to change without notice.
excluded (approx. 58 x 166 x 48 mm)
Antenna: Approx. 2 7⁄8 inches (approx. 72 mm)
AC-T127
(approx. 80 x 64 x 102 mm)
1
⁄4 x 2 5⁄8 x 4 1⁄8 inches (w/h/d)
CORDLESS HANDSET
9-873-163-02 Sony Corporation
2001H0500-1 Personal Audio Company
C 2001.8 Shinagawa Tec Service Manual Production Group
SPP-H273
Ver 1.1
TABLE OF CONTENTS
1. SERVICING NOTES............................................... 3
2. GENERAL
Identifying the Parts ........................................................ 4
Registering a cordless handset........................................ 6
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 7
3-2. Cabinet (Rear) ................................................................. 7
3-3. Hand Main Board ............................................................ 7
4. TEST MODE.............................................................. 8
5. ELECTRICAL ADJUSTMENTS......................... 13
6. DIAGRAMS
6-1. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 14
6-2. Block Diagram ................................................................ 15
6-3. Printed Wiring Board – HAND MAIN Board – ........... 16
6-4. Schematic Diagram – HAND MAIN Board (1/2) – ..... 17
6-5. Schematic Diagram – HAND MAIN Board (2/2) – ..... 18
6-6. IC Pin Function Description ........................................... 20
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.
NOTE FOR REPLACEMENT OF THE CRYSTAL VIBRATOR ON THE HAND MAIN BOARD
There are two types of crystal vibrators used on the HAND MAIN
board. Accordingly, when replacing the crystal vibrator, replace
the following reference number parts together. Similarly, when
the following reference number parts are replaced, check which
type of crystal vibrator is used and use the same type.
Crystal
vibrator
X31 C12 18PF 22PF
[How to identify the TYPE A or B of crystal vibrator]
The type A or B can be identified from the initial character of a
character staring indicated on the top surface of the parts.
TYPE A: Starting with a numeric value
TYPE B: Staring with alphabet D
Ref. No. TYPE A TYPE B
C11 18PF 33PF
R40 1.5kΩ 1kΩ
7. EXPLODED VIEW................................................... 22
8. ELECTRICAL PARTS LIST ............................... 23
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 MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS P AR 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.
SECTION 1
SERVICING NOTES
IF AN ERROR MESSAGE IS DISPLAYED
If the following error message is displayed after the power was turned on, check the items where “1” is indicated.
SPP-H273
ERROR=
• Note on Replacing The EEPROM
After the EEPROM was replaced, write various parameters in the “TEST MODE E” (see page 9). (For the ID, see “Writing ID Numbers”
described below)
Note: Replacing the EEPROM causes all data such as customer registered telephone directory to be cleared.
[][][][][][]
00
EEPROM*1 data error → Write correct data to the EEPROM.
ID error → Write correct ID data.
Flash memory (IC403)
Flash memory (IC403)
DSP (IC402)
EEPROM
*1) Base unit: IC303, Handset: IC122
*2) Base unit only
*2
*1
error → Check the EEPROM and its peripheral circuits.
*2
data error → Replace the flash memory (IC403).
*2
error → Check the flash memory (IC403) and its peripheral circuits.
error → Check the DSP (IC402) and its peripheral circuits.
RE-REGISTERING ALREADY REGISTERED SET
Initialize the registered information on this set, and then register again this set by the method giv en below . When re-registering the handset,
refer to “Registering additional cordless handsets” in the instruction manual. (see page 6)
1. Turn the power on.
2. Press three keys of [1], [EZ ACCESS], and [INTERCOM] simultaneously.
WRITING ID NUMBERS (for registering handsets)
The ID numbers are given in decimal notation on the bottom of base unit. If handsets are registered, ID can be written in the T EST mode,
but the TEST mode handles ID numbers in hexadecimal notation, thus requiring decimal numbers to be converted into hexadecimal
numbers. Accordingly, when registering this set, refer to “Registering a cordless handset” in the instruction manual. (see page 6)
However, if the EEPROM was replaced, the handsets cannot be registered by the method mentioned above. In such a case, enter various
parameters except ID numbers in the “TEST MODE E”, and then register the handsets by the method given in the instruction manual.
Also, the ID numbers can be written in the “TEST MODE B”(decimal number) (see page 10).
3
SPP-H273
Identifying the parts
Cordless handset
1
2
SECTION 2
GENERAL
This section is extracted from
instruction manual.
3
4
5
6
7
8
1 Antenna
2 Speaker
3 Display window
4 TALK button
Lets you make or receive a call.
5 HOLD/PLAY button
Puts a call on hold/plays back
recorded messages.
6 Battery compartment
7 CALL WAITING/FLASH button
Switches to a second call if you
have “call waiting” service, or lets
you make a new call.
9
0
qa
qs
qd
8 EZ ACCESS button
Lets you make a call with the
registered access number.
9 Jog Dial
0 OFF button
Allows you to disconnect the call.
qa INTERCOM button
Lets you talk between the base
phone and the cordless handset.
qs Dialing keys
qd ERASE button
4
qj
qk
SPP-H273
qf
qg
qh
qf REPEAT . button
Press once to repeat the current
message or twice to go back to the
previous message.
qg TONE button
Allows you to switch temporarily to
tone dialing.
qh RINGER
qj I (HEADSET) jack
qk V OL (volume) switch
Adjust the cordless handset
volume.
ql SKIP > button
Press to skip to the next message.
ql
w;
wa
ws
wd
w; # button
Used to change the number of
digits of the phone number in the
Caller ID list.
wa PGM (program) button
ws REDIAL/PAUSE button
Redials one of the last five numbers
called/inserts a pause in the dialing
sequence.
wd
MIC (Microphone)
5
SPP-H273
Registering a cordless handset
The phone systems can be expanded to a total of four cordless handsets.
The station number of the base phone (or base unit) is set to 0 and that of
the cordless handset (supplied with the base phone or base unit) is set to 1
at the factory. The station number of the cordless handset newly added to
the system will be one of the number 2 through 4 in the order of
registration.
Before you start registering, set all the unit of the system in standby mode
and place them close to each other (within a distance of 12 inches). Then do
the following procedure on the cordless handset.
Caution
Do not register two or three cordless handsets at the same time .
Doing so may result in more than one cordless handsets having an
identical station number.
within 12 inches
Base phone (or base unit)
1
2
Cordless handset
Press (PGM).
Press (INTERCOM).
You hear a confirmation beep.
ENTER SYSTEM ID
_
RING OFFMASSAGEOLDNEW
Attaching the supplied sticker
You can utilize the supplied two type of stickers provided for the station
number (for all QuadraStation 2.4 series) and for the reference of the
Answering function (only for the SPP-A2780 and SPP-A2770). Attach them
on the cordless handset if necessary.
To attach the sticker for the station number
Attach either of the two forms on each cordless handset to your preference.
To attach the sticker for the Answering
function (only for the SPP-A2780 and
SPP-A2770)
Attach the sticker for the reference of the button
operation required for playing back the recorded
messages as shown in the figure.
(Example: the bottom of SPP-A2780)
3
Enter the 10 digits system ID
by pressing the dialing keys.
The system ID is shown on a
sticker affixed to the bottom of
the base phone (or base unit).
System ID
4
Press (PGM).
You hear a long confirmation beep and the assigned station
number is displayed.
Notes
• Do not allow more than 60 seconds to elapse during the operation procedure.
• Once you add a cordless handset to the base phone (or base unit) system, you
cannot change the station numbers, or cancel the additional registrations.
• When you press any button other than (PGM) to use an unregistered cordless
handset, the message “PLEASE REGISTER THIS HANDSET” will appear on the
display, and five short error beeps will be heard. You must first register the
cordless handset you want to add to the system.
• If you try to register a cordless handset which you have already added to the
system, the five short error beeps will be heard and the registration will be
canceled.
• If the registration is unsuccessful, “ERROR” will appear on the display, and five
short error beeps will be heard after (PGM) is pressed in step 4. Move the cordless
handset closer to the base phone (or base unit), and then start over the procedure.
To check the station number assigned to the
cordless handset
The station number of the cordless handset
appears on the display of the cordless handset
while it is seated on the charger. You can also
utilize the supplied sticker of the station
number and attaching on the cordless handset.
HANDSET 2
RING OFFMASSAGEOLDNEW
6
• This set can be disassembled in the order shown below.
d
3-1. DISASSEMBLY FLOW
SPP-H273
SECTION 3
DISASSEMBLY
Set
Note: Follow the disassembly procedure in the numerical order given.
Cabinet (rear) Hand Main Boar
3-2. CABINET (REAR)
4
two claws
2
two screws (BTP2.6 × 12)
1
5
cabinet (rear)
lid, battery case
3-3. HAND MAIN BOARD
5
cover (antenna. H)
6
button (VOL. H)
3
two claws
3
cover (head set jack)
1
4
connector
(CN1)
2
three screws
(BTP2.6
7
HAND MAIN Board
×
8)
7
SPP-H273
SECTION 4
TEST MODE
TEST MODE
[ENTERING THE TEST MODE]
1. Connect the power.
2. Press three keys of [2], [6], and [ERASE] simultaneously.
3. When the test mode becomes active, the LCD displays as be-
low along with an acknowledged tone. (Idling status of test
mode)
display example
JK 0425to
FONT=NEW
A2780
4. Pressing either key in the following table causes the mode as-
sociated with the pressed key to be activated.
Key Mode Items
[1] TEST A Manufacturing mode
[3] TEST C Electrical adjustment mode
[4] TEST D RF control mode
[5] TEST E EEPROM read/write mode
[7] TEST B Writing the ID numbers
[ERASE] Erase Initialize the EEPROM
1-2. Jog Test
1. In the “TEST A” status, press the [2] key to acti ve the jog test
and display as below.
display example
TEST A JOG
UP
2. In this test mode, rotate the jog dial up/down or press the jog
dial to respective status will be displayed on the LCD as follows.
Up the jog dial : “UP” is displayed on the second line.
Down the jog dial : “DN” is displayed on the second line.
Press the jog dial : “P” is displayed on the second line.
1-3. LCD and LED Test
In the “TEST A” status, press the [3] key to active the LCD and
LED test and display as below along with the LCD back light and
key illumination LED blink alternately.
display
5. To return the idling status, press the [OFF] key.
[RELEASING THE TEST MODE]
Disconnect the power.
[DETAIL OF EACH MODE]
1. TEST MODE A (Manufacturing mode)
In the test mode idling status, press the [1] key to activ e this mode
and display “TEST A”.
1-1. Key T est
1. In the “TEST A” status, press the [1] key to acti ve the k ey test
and display “TEST A KEY”.
2. Press the key following order.
[TALK]t[OFF]t[HOLD]t [INTERCOM]t[1]t[2]t
[3]t[4]t[5]t[6]t[7]t[8]t[9]t[*]t[0]t[#]t
[CALL WAITING/FLASH]t [EZ ACCESS] t [ERASE] t
[REDIAL/PAUSE]t[PGM]
3. When this test finished, a completion tone is generated and
the base unit returns to the initial test mode “TEST A” and
waits for a command.
Also, pressing the keys in wrong order causes the set to be
returned to the initial status.
[NEW][OLD][MESSAGE][RING OFF]
Note: “NEW”/“MESSAGE” and “OLD”/“RING OFF” blink alternately
2. TEST MODE C (TX Power Measurement Mode)
In the test mode idling status, press the [3] key to active this mode
and display “TEST C”.
1. In the “TEST C” status, press the [1] key to active the TX
power measurement mode and transmit the single carrier continuously.
2. In this status, setting can be changed by entering the following
keys (not displayed).
[1] : Set TX power to middle/low
[3] : Set TX power to high
[7] : Select channel 5
[8] : Select channel 28
[9] : Select channel 50
8
SPP-H273
3. TEST MODE D (RF Control Mode)
In the test mode idling status, press the [4] key to activ e this mode
and display “TEST D”.
In this mode, TX power lev el, TX power on/of f, bit error late (fixed
at 0Fh), channel number, LQ, mode, RSSI and RXST are displayed
on the LCD as below . Each setting can be changed by entering the
following keys. (default: TX on, slave mode)
display example
PW=Hi TXON BR=0F
CH=15 LQM=3F Slv
RSSI=3F STS=1101
[1] : Lowers the channel
[3] : Raises the channel
[4] : Turns on/off the TX
[6] : Switches the mode to master/slave
[7] : Switches the TX power to Lo/ML/MH/Hi
4. TEST MODE E (EEPROM Read/Write Mode)
In the test mode idling status, press the [5] key to activ e this mode
and display as below.
display example
EEPROM ADRS=
Read Dt=
WriteDt=
[][][]
[][][][][][][][]
[][][][][][][][]
EEPROM data:
Address Data (hexadecimal)
(hexadecimal) 1st byte 2nd byte 3rd byte 4th byte
004 (ID1) (ID2) F6 (C-sum)
0E0 A9 3D 1C FD
008 50 03 51 08
00C 52 08 54 0D
010 5A 06 5D 02
014 60 0B 66 0F
018 70 07 FF 83
01C FF FF FF FF
020 FF FF FF FF
024 FF FF FF FF
0D8 01 01 (M-No.) (C-sum)
Contents of EEPROM data:
Address Data (hexadecimal)
(hexadecimal) 1st byte 2nd byte 3rd byte 4th byte
004 ID1 ID2 RF parameter C-sum
0E0 C-sum
008 C-sum
00C C-sum
010 C-sum
014 RF parameter C-sum
018 C-sum
01C C-sum
020 C-sum
024 C-sum
0D8 OWN-No. H-No. M-No. C-sum
[]: hexadecimal number (initial values are all blank)
Refer to following table for key assignment.
Key Assignment
[0] to [9] input 0 to 9
[HOLD] input A
[INTERCOM] input B
[CALL WAITING/FLASH] input C
[EZ ACCESS] input D
[ERASE] input E
[REDIAL/PAUSE] input F
[PGM] check sum
[#] enter
[*] reset
Enter the data associated with each address by referring to the
“EEPROM data” in the following table.
Writing procedure:
1. Input the address number (3 digit) of EEPROM.
2. Press the [#] key to enter the address number and display read
data (8 digit=4 byte).
3. If rewrite the data, input the rewriting data (8 digit=4 byte).
4. Press the [#] key to enter the rewriting data.
5. To release this mode, press the [OFF] key.
Note:
ID1, ID2 : ID numbers in hexadecimal notation (refer to “5. TEST MODE
B”)
C-sum : Check sum value (After entering the data up to 3 bytes, press
the [PROGRAM] key to start automatic calculation)
OWN-No.: Self number of handset
H-No. : Number of registered handset
M-No. : Number of model destination
: Number of base unit model
SPP-A2770 : 40h
SPP-A2780 : C0h
SPP-S2720 : 00h
SPP-S2730 : 80h
9
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