Sony SPP-Q123 Service Manual

SPP-Q123

SERVICE MANUAL

E Model

SPECIFICATIONS

CORDLESS TELEPHONE

MICROFILM

– 1 –

TABLE OF CONTENTS
1. GENERAL ..........................................................................	3
2. DISASSEMBLY
2-1. Battery Case Lid ...................................................................	7
2-2. Cabinet (Rear) .......................................................................	7
2-3. Hand Main Board ..................................................................	7
3. TEST MODE .......................................................................	8
4. ELECTRICAL ADJUSTMENTS ...............................	13
5. DIAGRAMS
5-1. Block Diagrams
• Base Unit Section .............................................................	15
• Handset Section ................................................................	17
5-2. Printed Wiring Board – Base Unit Section – ......................	21
5-3. Schematic Diagram – Base Unit Section – .........................	23
5-4. Schematic Diagram – Handset Section – ...........................	25
5-5. Printed Wiring Board – Handset Section – .........................	27
5-6. IC Pin Function Description ...............................................	29
6. EXPLODED VIEWS
6-1. Handset Section ..................................................................	31
6-2. Base Unit Section ................................................................	32
7. ELECTRICAL PARTS LIST ........................................	33

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.

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SECTION 1

GENERAL

LOCATION AND FUNCTION OF CONTROLS

BASE UNIT

2	3
2
	4
	5
1	6 7 8
	6 7 8
1 Charging terminals	6 LINE jack
2 Hang-up tab	7 DIAL MODE switch
3 Telescopic antenna	8 DC IN 9V jack
4 CHARGE lamp
5 PAGE key

HANDSET

1!º

!¡

!™

1 SPEED DIAL

2 TALK button

3 TALK/BATT low lamp

4 OFF button

5 SPEAKER

6 Helical antenna

7 FLASH button

8 Dialing keys

9 CHANNEL button

0 REDIAL/PAUSE button !¡ PGM

!™ Microphone

– 3 –

This section is extracted from instruction manual.

– 4 –

– 5 –

– 6 –

SECTION 2

DISASSEMBLY

Note: Follow the disassembly procedure in the numerical order given.

2-1. BATTERY CASE LID

Nickel cadmium battery
	2
Battery case lid	3
	3

4 Screws (2.6x8)

2-2. CABINET (REAR)

Cabinet (rear)

2-3. HAND MAIN BOARD

1 Screws (2.6x8)	2 Screw (2.6x12)

4 Connector (CN101)

Hand main board

Helical antenna

– 7 –

	SECTION 3
	TEST MODE

BASE UNIT SECTION	MACHINE TEST MODE
	Set the Test Mode:
	Set the Test Mode:

MANUAL TEST MODE

Set the Test Mode:

1.Set the [DIAL MODE] switch to “P” (pulse).

2.While pressing the [PAGE] key, switch on the power supply (Reset start).

3.With the [PAGE] key, still held down, switch the [DIAL MODE] switch “P” (pulse) n“T” (tone) n“P” (pulse).

4.When you release the [PAGE] key, test mode starts.

5.First dial “0” at 10 pps. Then output “1”, “4”, “8” and “#” with DTMF.

6.Set to TX ON. Goes to external line state in 1 CH.

Release the Test Mode:

1. Pull out the AC adaptor and turn off the power.

1.With one of the CH setting terminals in “H” input state, cause Reset of Power ON. Equipment enters machine test mode.

2.Setting of CH according to logic input with CH setting terminal.

3.ON/OFF of TX is according to the input logic of the DIAL MODE terminal.

Release the Test Mode:

1.Pull out the AC adaptor and turn off the power.

2.Remove the short plug and turn on the power again.

– base main board (conductor side) –

TP46(PAGE)

TP47 (DIAL MODE)

TP66 (TEST2)

TP62 (M2)

TP61 (M1)

TP63 (M3)

TP67 (TEST3)

TP65 (TEST1)

TP64 (M4)

TP106 (5V)

– 8 –

Channel Setting:

During startup in machine test mode, make the following channel settings by loading the terminal input data.

Pin No.

TX frequency

RX frequency

Channel

M1(TP61)

M2(TP62)

M3(TP63)

M4(TP64)

(MHz)

CH1

43.720

48.760

CH2

43.740

48.840

CH3

43.820

48.860

CH4

43.840

48.920

CH5

43.920

49.020

CH6

43.960

49.080

CH7

44.120

49.100

CH8

44.160

49.160

CH9

44.180

49.200

CH10

44.200

49.240

CH11

44.320

49.280

CH12

44.360

49.360

CH13

44.400

49.400

CH14

44.460

49.460

CH15

44.480

49.500

CH16

46.610

49.670

CH17

46.630

49.845

CH18

46.670

49.860

CH19

46.710

49.770

CH20

46.730

49.875

CH21

46.770

49.830

CH22

46.830

49.890

CH23

46.870

49.930

CH24

46.930

49.990

CH25

46.970

49.970

TEST1

43.780

48.800

TEST2

43.890

48.970

TEST3

46.800

49.910

TEST4

46.900

49.950

Machine Test Mode Input / Output:

1. Input (Input ports for other than main tasks)

Pin Name

Pin No.

Function

Logic

M1 (TP61)

M2 (TP62)

Setting the CH (channel)

Refer to channel settig

M3 (TP63)

M4 (TP64)

DIAL MODE (TP47)

Setting the TX ON/OFF

H(T) : OFF, L(P) : ON

Manual : Channel increment

Incrementing of channels in order from 1 to 25.

PAGE (TP46)

Machine : Dial data "5" is output to DTMF/DP exchange

Key input with "L" input.

The first time there is output of "5" with DTMF.

29 Pin

28 Pin

27 Pin

Operation with

TEST1 (TP65)

TEST2 (TP66)

TEST3 (TP67)

CHARGE LED

TX ON

If RSSI(H) is detected : Light ON

If RSSI(L) is detected : Light ON

If TX LOCK is detected : Light OFF

If RX LOCK is detected : Light OFF

BEEP output

ID CODE output

If RING is detected : Light ON

If PAGE KEY is input : Light ON

2. Output (Output ports for other than main tasks)

Pin Name	Pin No.	Function	H Logic	L Logic
CHARGE DET (TP21)	18	State in section 1. Input	Refer to section 1. Input

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