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SERVICE MANUAL
US Model
SPP-N1020
Canadian Model
SPP-N1021
SPECIFICATIONS
SPP-N1020/N1021
Ver 1.1 2001.12
9-873-146-12
Sony Corporation
2001L0500-1
Personal Audio Company
C
2001.12
Published by Sony Engineering Corporation
CORDLESS TELEPHONE
General
Operating frequency
Base unit: 902 - 905 MHz (310
µw)
Handsset: 925 - 928 MHz (400
µw)
Operating channel
30 channels
Dial signal
Tone, 10 PPS (pulse) selectable
Supplied accessories
AC power adaptor AC-T130
Telephone line cord
Rechargeable battery pack BP-T18
Belt clip
Wall bracket
Handset
Power source
Rechargeable battery pack BP-T18
Battery life
Standby: Approx. 7 days
Talk: Approx. 7 hours
Dimensions
Approx. 2 1/
4 x 1
7/
8 x 7
1/
4 inches (w/h/d), antenna excluded
(approx. 55 x 47 x 183 mm)
Antenna: Approx. 1 3/
8 inches (approx. 34 mm)
Mass
Approx. 7.7 oz (approx. 220 g), battery included
Base unit
Power source
DC 9V from AC power adaptor AC-T130
Battery charging time
Approx. 12 hours
Dimensions
Approx. 5 x 2 1/
4 x 7
1/
2 inches (w/h/d), antenna excluded
(approx. 127 x 55 x 189 mm)
Antenna: Approx. 6 1/
8 inches (approx. 153 mm)
Mass
Approx. 9 oz (approx. 250 g), wall bracket excluded
Design and specifications are subject to change without notice.
Photo: SPP-N1020


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2
SPP-N1020/N1021
TABLE OF CONTENTS
1.
SERVICING NOTES ................................................ 2
2.
GENERAL
Set Up the Base Unit .......................................................
4
Install the Battery Pack ...................................................
4
Charge the Battery Pack .................................................
4
Change the Display Language ........................................
5
Choose the Dialing Mode ...............................................
5
Making Calls ...................................................................
6
Receiving Calls ...............................................................
6
One-touch Dialing ...........................................................
6
Phone Directory ..............................................................
7
Using Caller ID Service ..................................................
7
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
8
3-2. H/S Rear Assy .................................................................
8
3-3. H/S FRT Assy ..................................................................
9
3-4. HAND MAIN Board .......................................................
9
3-5. Base Bottom .................................................................... 10
3-6. BASE MAIN Board ........................................................ 10
4.
TEST MODE .............................................................. 11
5.
DIAGRAMS
5-1. Block Diagram ­ BASE UNIT Section ­ ...................... 15
5-2. Block Diagram ­ HANDSET Section ­ ........................ 16
5-3. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 17
5-4. Printed Wiring Board ­ BASE MAIN Board ­ ............. 18
5-5. Schematic Diagram ­ BASE MAIN Board ­ ................ 19
5-6. Printed Wiring Board ­ HAND MAIN Board ­ ............ 20
5-7. Schematic Diagram ­ HAND MAIN Board ­ .............. 21
5-8. IC Pin Function Description ........................................... 22
6.
EXPLODED VIEWS
6-1. Hand Set Section ............................................................. 23
6-2. Base Set Section .............................................................. 24
7.
ELECTRICAL PARTS LIST ............................... 25
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 PUB-
LISHED BY SONY.
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 COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
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.
NOTE FOR REPLACEMENT OF THE EEPROM
The ID cord is written in the EEPROM.
When replacing the EEPROM, U6 on the BASE MAIN board and
U4 on HAND MAIN board should be replaced together as a pair.
(Parts No. X-3381-081-1)
PRIOR CHECK FOR SERVICING
This set can rewrite the ID number of handset to the ID number of
base unit in the test mode even their serial numbers are different.
You can find which is wrong, handset or base unit with this
function.
Note: A normal set is needed for this test.
Define A as the normal set and B as the faulty set.
Disconnect their power.
Procedure:
1. Press the [PGM] key.
2. Select the "DIAL MODE" menu by pressing v or V keys.
3. Press the key sequence [SELECT]
, [2], [1], [0], [4].
4. When enter the test mode, happy tone is emitted, and the LCD
displays as shown below.
5. While pressing the [HANDSET LOCATOR] key of the base
unit A, turn the power on, then release and press it again within
2 seconds to enter the test mode.
6. When enter the test mode, the [LINE] LED blinks slowly .
7. Disconnect the power of the handset B, then connect the power
again.
8. Disconnect the power of the base unit A, then connect the power
again.
9. Cradle the handset B on the base unit A to charge the battery
of handset B for about 1 minute.
10. Press the [TALK] key of the handset B and join the base unit
A.
11. When joining is successful, the handset B is normal. But when
it fails, charge the battery of the handset B again.
12. Next, repeat the step 1 to step 9 with the handset A and base
unit B
13. When joining is successful with handset A and base unit B,
base unit B is normal and handset B is faulty.
SECTION 1
SERVICING NOTES


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SPP-N1020/N1021
NOTE FOR REPAIRING AND REPLACEMENT OF THE
NEW TYPE BOARD
When a new type board is damaged or out of order, do not repair
that board, but replace with an former type board (BASE MAIN
board : Part No. A-3062-659-A, HAND MAIN board : Part No.
A-3062-658-A (N1020)/A-3062-742-A(N1021)). In this case, re-
move the EEPROM (BASE MAIN board : Ref No. U6, HAND
MAIN board : Ref No. U4) from the new type board and install it
on the former type board as a replacement.
NEW/FORMER TYPE DISCRIMINATION
In this set with the following serial No. or later BASE MAIN and
HAND MAIN boards have been changed.
SPP-N1020 : Serial No. 0270853 or later
SPP-N1021 : Serial No. A0114793 or later
Ver 1.1
Serial No.
Serial No.
Lid Battery
Bottom View
Bottom View
­ BASE MAIN BOARD (Conductor Side) ­
U6
­ HAND MAIN BOARD (Component Side) ­
U4
U4
Former Type
New Type


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SPP-N1020/N1021
SECTION 2
GENERAL
This section is extracted from
instruction manual.
1 Set up the base unit
3 Raise the antenna.
To LINE
To AC outlet
To telephone outlet
To DC
IN 9V
2 Connect the AC power
adaptor AC-T130.
1 Connect the telephone
line cord.
2 Install the Battery Pack
1 Slide open the
battery
compartment
lid.
2 Connect the
battery
connector with
correct polarity
(black wire goes
on right side
and red wire
goes on left).
3 Insert the
battery pack,
and close the
lid.
3 Charge the Battery Pack
Charge the battery pack for at least
12 hours.
Place the handset on the base unit.
CHARGE lamp
BP-T18
Black
Red


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5
SPP-N1020/N1021
4 Change the display language
1 Press (PGM).
2 Raise or lower the Jog lever until
"LANGUAGE" or "IDIOMA" appears
on the display.
3 Press (SELECT).
4 Raise or lower the Jog lever to
change the display language, and
then press (PGM).
ENGLISH ESPANOL
5 Choose the dialing mode
1 Press (PGM).
2 Raise or lower the Jog lever until
"DIAL MODE" appears on the display.
3 Press (SELECT).
4 Raise or lower the Jog lever to choose
the dialing mode ("TONE" or
"PULSE"), and then press(PGM).
DIAL MODE: TONE