Sony SPP-801, SPP-811, SPP-851, SPP-861 Service Manual

SPP-801/811/851/861

SERVICE MANUAL

Taiwan Model

Ver 1.1 2000. 11 With SUPPLEMENT-1 (9-927-610-81)

	Photo: SPP-851

	SPECIFICATIONS
General
Frequency control	Crystal-controlled PLL
Operation mode	FM, duplex
Operation channel	10 channels
Supplied accessories	AC power adaptor AC-T56 (1)
	Telephone line cord (1)
	Rechargeable battery pack BP-T16 (1)
	Screws (2)
	Directories (2 sheets)
Handset
Power source	Rechargeable battery pack BP-T16
Battery life	Standby: Approx. 14 days
	Talk:	Approx. 6 hours
Dimensions	Approx. 58 × 194 × 47 mm (w/h/d), antenna
	excluded
	Antenna: Approx. 110 mm
Mass	Approx. 220 g, battery included
Base unit
Power source	DC 9V from AC power adaptor
Battery charging time	Approx. 12 hours
Dimensions	Approx. 132 × 56 × 220 mm (w/h/d), antenna
	excluded
	Antenna: Approx. 310 mm
Mass	Approx. 310 g

Design and specifications are subject to change without notice.

CORDLESS TELEPHONE

MICROFILM

– 1 –

	TABLE OF CONTENTS
1. GENERAL ...........................................................................	3	5. DIAGRAMS
		5-1.	IC Pin Descriptions ...........................................................	16
2. DISASSEMBLY		5-2. Block Diagram –Base Unit Section– ................................		19
2-1. Cabinet (Lower) (Base Unit) ...............................................	6	5-3.	Block Diagram –Handset Section– ...................................	21
2-2. Cabinet (Rear) (Handset) ....................................................	6	5-4.	Printed Wiring Board –Base Unit Section– ......................	23
		5-5. Schematic Diagram –Base Unit Section– .........................		25
3. TEST MODE		5-6. Printed Wiring Board –Handset Section– .........................		27
Base Unit Section ....................................................................	7	5-7.	Schematic Diagram –Handset Section– ............................	29
Handset Section .......................................................................	9	6. EXPLODED VIEWS
		6. EXPLODED VIEWS
4. ELECTRICAL ADJUSTMENTS		6-1.	Base Unit Section ..............................................................	32
Base Unit Section ..................................................................	12	6-2.	Handset Section .................................................................	33
Handset Section .....................................................................	14	7. ELECTRICAL PARTS LIST		34
		7. ELECTRICAL PARTS LIST		34

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.

– 3 –

– 4 –

– 5 –

Sony SPP-801, SPP-811, SPP-851, SPP-861 Service Manual

SECTION 2

DISASSEMBLY

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

2-1. CABINET (LOWER) (BASE UNIT)

1 P 3x10

2 P 3x10

4 cabinet (lower)

3 connector (CN301)

2-2. CABINET (REAR) (HANDSET)

4 claw

3 claws

1 battery case lid assy

2 BTP 2.6x10

5 cabinet (rear)

– 6 –

SECTION 3 TEST MODE

BASE UNIT SECTION

MANUAL TEST MODE

Set the Test Mode:

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

2.While pressing the HANDSET LOCATOR key, insert the AC adaptor (Reset start).

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

“P” (pulse).

4.When the HANDSET LOCATOR key is released, test mode starts.

5.Firstly, “0” will be dialled out at 10 pps. Then “1”, “4”, “8” and “#” will be sent out by DTMF.

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

Release the Test Mode:

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

–base main board (conductor side) –

TP46

IC101

MACHINE TEST MODE

Set the Test Mode:

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 or turn off the power.

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

TP47

TP66	TP62	TP61
TP63

	TP65	TP67
	TP64	TP67
	TP64

IC501

TP106

– 7 –

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

(MHz)

Channel

(TP61)

(TP62)

(TP63)

(TP64)

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 setting

M3 (TP63)

M4 (TP64)

DIAL MODE

Setting the TX ON/OFF

TONE : open, PULSE : short

(TP47)

HANDSET LOCATOR

Manual : Channel increment

Incrementing of channels in order from 1 to 10.

Machine : Dial data “5” is output to

Key input with “L” input.

(TP46)

DTMF/DP exchange

The first time there is output of “5” with DTMF.

TEST1

TEST2

TEST3

Operation with CHARGE LED

Operation with TX ON

(TP67)

(TP66)

(TP65)

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 HANDSET LOCATOR 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

– 8 –

HANDSET SECTION

MANUAL TEST MODE

Set the Test Mode:

1.Enter the test mode by pressing 0 key while pressing 1 and TALK keys when in idle condition.

(Key operation 0 n 1 nTALK )

2.The RINGER will ring for 500 msec. when the test mode is started.

3.Measurement mode of consumption current. (42# state)

4.Use key input to carry out the various settings.

5.Use port inputs to set output from LED terminals.

Release the Test Mode:

1.	Press the 0 , 0 and # keys.
2.	Turn off the power. (Remove the battery and replace them.)

– hand main board (side B) –

TP36

TP35

TP55

IC101

MACHINE TEST MODE

Set the Test Mode:

1.When power on reset is applied while a “H” (high) is input the TEST SW (TP43) terminal (IC501 $¼ pin), the RING (Level

H, 500 msec) sounds.

2.Following that, at timing in which the TEST SW terminal has “H” (high) input, there is output of “L” (low) by the CH (channel) setting control terminal. Then there is PLL setting to the CH which was read to with the CH setting terminal according to that “L” (low) output.

3.Set the TX setting to TX OFF.

4.The channel is set by voice not by data.

5.Use port inputs to set output from LED terminals.

Release the Test Mode:

1.Press the OFF key.

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

	TP13
TP43	TP14
TP43	TP15
TP44	TP16
	TP17

TP33	IC501

– 9 –

Channel Setting:

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

Pin No.	34	33	32	31	29	TX frequency	RX frequency
Pin No.	ROW5	ROW4	ROW3	ROW2	ROW1	TX frequency	RX frequency
	ROW5	ROW4	ROW3	ROW2	ROW1	(MHz)	(MHz)
Channel	(TP13)	(TP14)	(TP15)	(TP16)	(TP17)	(MHz)	(MHz)
Channel	(TP13)	(TP14)	(TP15)	(TP16)	(TP17)

CH1	H	L	L	L	L	48.760	43.720
CH2	H	L	L	L	H	48.840	43.740
CH3	H	L	L	H	L	48.860	43.820
CH4	H	L	L	H	H	48.920	43.840
CH5	H	L	H	L	L	49.020	43.920
CH6	H	L	H	L	H	49.080	43.960
CH7	H	L	H	H	L	49.100	44.120
CH8	H	L	H	H	H	49.160	44.160
CH9	H	H	L	L	L	49.200	44.180
CH10	H	H	L	L	H	49.240	44.200
CH11	H	H	L	H	L	49.280	44.320
CH12	H	H	L	H	H	49.360	44.360
CH13	H	H	H	L	L	49.400	44.400
CH14	H	H	H	L	H	49.460	44.460
CH15	H	H	H	H	L	49.500	44.480
CH16	L	L	H	H	L	49.670	46.610
CH17	L	L	H	H	H	49.845	46.630
CH18	L	H	L	L	L	49.860	46.670
CH19	L	H	L	L	H	49.770	46.710
CH20	L	H	L	H	L	49.875	46.730
CH21	L	H	L	H	H	49.830	46.770
CH22	L	H	H	L	L	49.890	46.830
CH23	L	H	H	L	H	49.930	46.870
CH24	L	H	H	H	L	49.990	46.930
CH25	L	H	H	H	H	49.970	46.970
TEST1	L	L	L	H	L	48.800	43.780
TEST2	L	L	L	H	H	48.970	43.890
TEST3	L	L	H	L	L	49.910	46.800
TEST4	L	L	H	L	H	49.950	46.900

Machine Test Mode Input / Output:

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

Pin Name	Pin No.	Function	Logic
ROW1 (TP17)	29
ROW2 (TP16)	31
ROW3 (TP15)	32	Setting the CH (channel)	Refer to channel setting
ROW4 (TP14)	33
ROW5 (TP13)	34
TEST CH (TP33)	1	Control terminal for setting the CH (channel)	H : OFF, L : ON
TEST SW (TP43)	40	Start up of the test mode	H : Start, L : Not start
TEST ACK (TP44)	44	During the test mode, causes start of intermittent	H : Intermittent start
TEST ACK (TP44)	44	operation with external input.	H : Intermittent start
		operation with external input.

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

Pin Name	Pin No.	Function	H Logic	L Logic
TALK LED (TP35)	48	Various input/output monitor output	No detection	Detection
TALK LED (TP35)	48	(default : RSSI (H) detection).	No detection	Detection
		(default : RSSI (H) detection).

KEY LED (TP55)	2	During test mode : All light lit. However, does	No light	Light
KEY LED (TP55)	2	not include measurment of consumption current.	No light	Light
		not include measurment of consumption current.

– 10 –

Key Processing (Setting the Manual Test Mode) :
1.	(Upper position) (Lower position) Set with #.
2.	3X# can be substituted with X*.

Upper position

MIC

Lower position

QUIT

10 ch

20 ch

Batt Alarm

KEY TEST

1 ch

11 ch

21 ch

CHARGE DET

2 ch

12 ch

22 ch

3 ch

13 ch

23 ch

4 ch

14 ch

24 ch

RX LOCK

5 ch

15 ch

25 ch

TX LOCK

6 ch

16 ch

T1 ch

RSSI (H)

7 ch

17 ch

T2 ch

RSSI (L)

—

8 ch

18 ch

T3 ch

DATA TX

—

9 ch

19 ch

T4 ch

—

Purpose

CH setting only

SIGOUT control

General

operation

The standard is external communication

Condition

state.

Measurement mode of

Application

surveillance with

State for standard electrical adjustment

consumption current.

TALK LED.

process.

g: ON, G: OFF

•By pressing the CH key there is increment of the channel. However, this does not include the test channel.

•Control of the power source during 38# DATA TX is (TX & RX RF & RX AF=ON) in 44# state.

•Control of the power source during the 70# key check mode is 41# state (TX OFF).

•For CH setting, SIGOUT control and power source control (with the exception of above-mentioned 38# state) the state can be set independently.

Example : In 15 ch, the order for carrying out TX modulation

level and RSSI (H) sensitivity setting is as follows : The following are possible : 15# n44# n36#

36# n15# n44# 44# n36# n15#

– 11 –

SECTION 4

ELECTRICAL ADJUSTMENTS

BASE UNIT SECTION

Note:

•Apply 9V dc from regurated DC power supply.

•Perform the adjustment at TEST3CH (28CH: 49.910 MHz) as a rule.

•Set to base unit manual test mode. (Refer to page 7)

•Switch position :

S302 (DIAL MODE) : P (pulse)

TX SECTION ADJUSTMENT

• The electrolytic capacitor (10 µF/10 V) connected TP23 (DET OUT) to TP19 (GND). (Only TX section adjustment)

TX VT Adjustment

Setting :

digital voltmeter

+ TP6 (TX VT)

– TP19 (GND)

Procedure :

1.The digital voltmeter connected TP6 (TX VT) to TP19 (GND).

2.Adjust the L52 for 2.2 ± 0.05 V reading on the digital voltmeter.

RX VT Adjustment

Setting :

digital voltmeter

+ TP5 (RX VT)

– TP3 (RX GND)

Procedure :

1.The digital voltmeter connected TP5 (RX VT) to TP3 (RX GND).

2.Adjust the L101 for 2.4 ± 0.05 V reading on the digital voltmeter.

RX SECTION ADJUSTMENT

RX LEVEL Adjustment

Note:

• Perform the adjustment at TEST3CH (28CH: 49.910 MHz) as a rule.

Setting :

FM RF signal generator

	TP2
	TP3 (RX GND)
Carrier frequency : 49.910 MHz
Modulation	: 1 kHz
Deviation	: FM 3 kHz
Output level	: 60 dBµV (1 mV) (EMF)
level meter
+	TP105

– TP104

600 ½

PBX tester

DC 48V F.B.

Procedure :

1.Adjust the FL101 for the maximam reading on the level meter. Also check that the output level is the specified values.

Specified Value : –1.4 to –9.6 dBV

RSSI Hi Adjustment

Note:

• Perform the adjustment at TEST3CH (28CH: 49.910 MHz) as a rule.

Setting :

AF oscillator

Output: 20 Hz

FM RF signal generator

	TP2
	TP3 (RX GND)
Carrier frequency : 49.910 MHz
Modulation	: 20 Hz (EXT)
Deviation	: AM 50%
Output level	: 17 dBµV (7.1 µV) (EMF)

oscilloscope (DC range)

+ TP9 (SIG OUT)

– TP19 (GND)

Procedure :

1.Use the oscilloscope to confirm the FM RF signal generator input (AF) signal waveform and RSSI signal, and use the RV101 so that they are synchronized (duty is synchronized).

RSSI output waveform	AF oscillator
	EXT signal
0 V	20 Hz
Adjust so that they
synchronize at 0 V.

RSSI WAVEFORM

Adjustment Location : base main board (See page 13)

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