Sony SPP-930 Service Manual

SERVICE MANUAL

SUPPLEMENT - 3

File this Supplement with the Service Manual.

Subject :

CHANGE OF BOARDS

CENTRAL & SOUTH AMERICA MODEL ADDED

A MODEL IN CREAM COLOR HAS BEEN ADDED FOR US MODEL

SPP-930

US Model

Canadian Model

E Model

(ECN-CP701144)

TABLE OF CONTENTS

1. LOCATION AND FUNCTION OF CONTROLS ......... 2

2. CHANGE OF BOARDS...................................................... 3

3. ADJUSTMENTS

3-1. Base Unit Section ................................................................ 4

3-2. Handset Section ................................................................... 6

4. DIAGRAMS

4-1. Printed Wiring Boards (Handset Section) ........................... 8

4-2. Schematic Diagram (Handset Section).............................. 11

4-3. Schematic Diagram (Base Unit Section) ........................... 14

4-4. Printed Wiring Boards (Base Unit Section)....................... 17

5. EXPLODED VIEWS

5-1. Base Unit Section .............................................................. 21

5-2. Handset Section ................................................................. 22

6. ELECTRICAL PARTS LIST............................................ 23

1. LOCATION AND FUNCTION OF CONTROLS

(Service Manual See page 3)

BASE UNIT

: Changed portion

1 PAGE button 2 CHARGE lamp 3 IN USE lamp 4 POWER lamp 5 Antenna 6 DC IN 9V jack 7 LINE (Telephone) jack

HANDSET

: Corrected portion

!¢ 3

!£

!™

!¡

!º

1 TALK lamp

2 VOL(Volume) H/L switch 3 PGM (Program) button

4 Dialing keys 5 Charge terminals 6 Microphone 7 CHANNEL button 8 REDIAL button 9 SPEED DIAL button !º OFF button !¡ BATT LOW lamp

!™ Speaker !£ Antenna !¢ TALK/FLASH button

– 2 –

2. CHANGE OF BOARDS

The base main board was divided into base RF board and base TEL board. Adjustment, printed wiring boards and schematic diagram of new type, and changed parts list are described in this Supplement-3. Refer to original service manual (9-925-735-11), Supplement-1 (9-925-735-81) and supplement-2 (9-925-735-82) previously issued for the other information.

NEW TYPE IDENTIFICATION

Former Type

[BASE MAIN BOARD]

IC6

IC5

IC3

New T ype

IC1

[BASE RF BOARD]

[BASE TEL BOARD]

– 3 –

3. ADJUSTMENTS

3-1. BASE UNIT SECTION

• Perf orm the adjustment at 6CH (RX : 926.55MHz, TX :

903.8MHz) by removing R1 as a rule.

Former Type only

1. RX LOOP VOLTAGE Adjustment

Procedure :

1. Connect the FM rf signal g enerator to ANTENNA point. FM rf signal generator condition :

Carrier frequency : 926.55MHz Modulation : 1kHz Deviation : ± 25kHz Output level : – 50 dBm (EMF)

2. Connect the digital v oltmeter to RX LOOP V (A TE terminal).

3. Adjust the C88 f or 2.0V ± 0.2V reading on the digital v oltmeter .

2. TX LOOP VOLTAGE Adjustment

Procedure :

1. Connect the digital v oltmeter to TX LOOP V (A TE terminal).

2. Adjust the C49 f or 2.0V ± 0.2V reading on the digital v oltmeter .

3. QUAD-TUNE VOLTAGE Adjustment

Procedure :

1. Connect the FM rf signal g enerator to ANTENNA point. FM rf signal generator condition :

Carrier frequency : 903.8MHz Modulation : 1kHz Deviation : ± 25kHz Output level : – 50 dBm (EMF)

2. Connect the digital v oltmeter to RX A UDIO (ATE terminal).

3. Adjust the C87 (Former type), C151 (New type) for 2.2V ± 0.1V reading on the digital v oltmeter .

6. TX DEVIATION Adjustment

Procedure :

1. Connect the modulation meter to ANTENNA point.

2. Adjust the R135 f or DEVIATION = 25kHz ± 1.0kHz reading on

the modulation meter .

7. TX power and TX frequency Confirmation

Procedure :

1. Connect the modulation meter to ANTENNA point.

2. Confirm the TX po wer is – 5 dBm ± 2dB. Confirm the TX frequenc y is 903.8MHz ± 1kHz.

Connect and Adjustment Location : BASE Main boar d

(Former type : Service Manual see page 24)

Connect and Adjustment Location : BASE RF boar d

(New type : See page 5)

4. 4.0MHz CLOCK REFERENCE Adjustment

Procedure :

1. Connect the frequency counter to IC3 ( @§ pin).

2. Adjust the C92 (Former type), C152 (New type) for 4.0MHz ±

500Hz reading on the frequenc y counter .

5. DEMODULATION LEVEL Adjustment

Procedure :

1. Connect the FM rf signal g enerator to ANTENNA point. FM rf signal generator condition :

Carrier frequency : 903.8MHz Modulation : 1kHz Deviation : ± 25kHz Output level : – 50 dBm (EMF)

2. Connect the modulation meter to IC6 ( !• pin).

3. Adjust the R114 f or 21dBV ± 1dB reading on the modulation meter .

– 4 –

Connect Location (New type) :

R 1

IC6

R117

C93

R74

C116

IC1

IC5

IC3

112

1324 18

IC3 (@§ pin) :

4.0MHz CLOCK REFERENCE Adjustment

IC6 (

!•

pin) :

DEMODULATION LEVEL Adjustment

ANTENNA point

[BASE RF BOARD] (SIDE A)

[BASE RF BOARD] (SIDE B)

Adjustment Location (New type) :

[BASE RF BOARD] (SIDE A)

ATE TERMINAL

GND RX AUDIO

RX LOOP V TX LOOP V TX PWR

ATE I/O

RX AUDIO : QUAD-TUNE VOLTAGE Adjustmen

R114 : DEMODULATION LEVEL Adjustmen

IC1

IC6

IC5

R135 : TX DEVIATION Adjustment

C152 : 4.0MHz CLOCK REFERENCE Adjustment

C151 : QUAD-TUNE VOLTAGE Adjustment

– 5 –

3-2. HANDSET SECTION

• P erf orm the adjustment at 6CH (RX : 903.8MHz, TX :

926.55MHz) b y remo ving R1 as a rule .

Former Type only

1. RX LOOP VOLTAGE Adjustment

Procedure :

1. Connect the FM rf signal g enerator to ANTENNA point. FM rf signal generator condition :

Carrier frequency : 903.8MHz Modulation : 1kHz Deviation : ± 25kHz Output level : – 50 dBm (EMF)

2. Connect the digital v oltmeter to RX LOOP V (A TE terminal).

3. Adjust the C88 f or 1.2V ± 0.2V reading on the digital v oltmeter .

2. TX LOOP VOLTAGE Adjustment

Procedure :

1. Connect the digital v oltmeter to TX LOOP V (A TE terminal).

2. Adjust the C49 f or 1.2V ± 0.2V reading on the digital v oltmeter .

3. QUAD-TUNE VOLTAGE Adjustment

Procedure :

1. Connect the FM rf signal g enerator to ANTENNA point. FM rf signal generator condition :

Carrier frequenc y : 903.8MHz Modulation : 1kHz Deviation : ± 25kHz Output le vel : – 50 dBm (EMF)

2. Connect the digital v oltmeter to RX A UDIO (ATE terminal)

3. Adjust the C87 f or 1.2V ± 0.1V reading on the digital v oltmeter .

6. TX DEVIATION Adjustment

Procedure :

1. Connect the modulation meter to ANTENNA point. 2 . Adjust the R119 f or TX DEVIA TION= 25kHz ± 2kHz read-

ing on the modulation meter .

7. TX power and TX frequency Confirmation

Procedure :

1. Connect the modulation meter to ANTENNA point.

2. Confirm the TX po wer is – 5 dBm ±2dB. Confirm the TX frequenc y is 926.55MHz ±1kHz.

Connect and Adjustments Location : HAND MAIN boar d

(Former type : Service Manual see page 26)

(New type : See page 7)

4. 4.0MHz CLOCK REFERRENCE Adjustment

Procedure :

1. Connect the frequenc y counter to IC3 ( @§ pin).

2. Adjust the C92 f or 4.0MHz ± 500Hz reading on the frequenc y

counter .

5. DEMODULATION LEVEL Adjustment

• Remo ve the speaker fr om SP1 (RECEIVER).

• Set [VOL] switch (S19) in “L”.

Procedure :

1. Connect the FM rf signal g enerator to ANTENNA point. FM rf signal generator condition :

Carrier frequenc y : 903.8MHz Modulation : 1kHz Deviation : ± 25kHz Output le vel : – 50 dBm (EMF)

2. Connect the modulation meter to RECEIVER + (A TE ter minal)

3. Adjust the R113 f or – 19dBV ± 1dB reading on the modulation meter .

– 6 –

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