Sony SPP-874 Bedienungsanleitung

– 1 –

SERVICE MANUAL

SPECIFICATIONS

General

Operating channel

25 channels

Dial signal

Tone, 10 PPS (pulse) selectable

Supplied accessories

AC power adaptor (AC-T56) (1) (E92)

AC power adaptor (AC-T124) (1) (E12)

AC power adaptor (AC-T125) (1) (ARGENTINE)

Telephone line cord (1)

Rechargeable battery pack (BP-T16) (1) (SPP-874)

Rechargeable battery pack (BP-T16) (2) (SPP-884)

Wall bracket/stand (1)

Screws (2)

Handset

Power source

Rechargeable battery pack BP-T16

Battery life

Standby: Approx. 14 days

Talk : Approx. 6 hours

Battery charging time

Approx. 12 hours

Dimensions

Approx. 54 ×195 ×49 mm (w/h/d),

antenna excluded

(approx. 2 1/4 ×7 3/4 ×1 15/16 inches)

Antenna: Approx. 285 mm

(approx. 11 1/4 inches)

MassApprox. 240 g (approx. 8 oz), battery

included

SPP-874/884

E Model

CORDLESS TELEPHONE

Base unit

Power source

DC 9V from AC power adaptor

Rechargeable battery pack BP-T16

(SPP-884 only)

Battery charging time

Approx. 20 hours (SPP-884 only)

Dimensions

Approx. 120 ×64 ×223 mm (w/h/d),

antenna excluded

(approx. 4 3/4 ×2 5/8 ×8 7/8 inches)

Antenna: Approx. 680 mm

(approx. 26 7/8 inches)

MassApprox. 350 g (approx. 12 oz), wall

bracket and battery excluded

Design and specifications are subject to change without

notice.

• Abbreviation

E12 : 220–240V area of E model

E92 : 120V area of E model

MICROFILM

Photo: SPP-884

Handset

Base unit

– 27 – – 28 –

SPP-874/884

5-4. SCHEMATIC DIAGRAM — BASE SECTION — • Refer to page 37 for IC Block Diagrams.

Note:

• All capacitors are in µF unless otherwise noted.

pF: µµF 50 WV or less are not indicated except for

electrolytics and tantalums.

• All resistors are in Ωand 1/4W or less unless other-

wise specified.

•¢: internal component.

•C: panel designation.

•U: B+ Line.

•H: adjustment for repair.

• Power voltage is dc 9 V and fed with regulated dc

power supply from external power voltage jack.

• Voltage is dc with respect to ground under

no-signal condition.

• Voltage dc with respect to ground under no-signal

conditions.

• Voltages are taken with a VOM (Input impedance

10 MΩ).

Voltage variations may be noted due to normal pro-

duction tolerances.

• Signal path.

N: RX

O: TX

P: bell

• Abbreviation

E12 : 220-240V area of E model

E92 : 120V area of E model

5-6. SCHEMATIC DIAGRAM — HAND MAIN SECTION — • Refer to page 37 for IC Block Diagrams.

– 31 – – 32 –

SPP-874/884

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF

50 WV or less are not indicated except for electrolytics

and tantalums.

• All resistors are in Ωand 1/4W or less unless otherwise

specified.

•¢: internal component.

•U: B+ Line.

•H: adjustment for repair.

• Powervoltageisdc3.6 V andfed with regulateddc power

supply from battery connector (CN2).

• Voltage is dc with respect to ground under no-signal

condition.

• Voltages are takenwith aVOM(Input impedance10 MΩ).

Voltage variations may be noted due to normal produc-

tion tolerances.

• Signal path.

N: RX

O: TX

• Abbreviation

E12 : 220-240V area of E model

E92 : 120V area of E model

(Page 36)

5-8. SCHEMATIC DIAGRAM — HAND KEY SECTION — • Refer to page 37 for IC Block Diagrams.

– 35 – – 36 –

SPP-874/884

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF

50 WV or less are not indicated except for electrolytics

and tantalums.

•C: panel designation.

•U: B+ Line.

• Powervoltage is dc3.6 V andfed with regulateddc power

supply from battery connector (CN2).

• Voltage is dc with respect to ground under no-signal

condition.

• Voltages are takenwith aVOM(Input impedance10 MΩ).

Voltage variations may be noted due to normal produc-

tion tolerances.

• Abbreviation

E12 : 220-240V area of E model

E92 : 120V area of E model

(Page 32)

• IC Block Diagrams

– 37 – – 38 –

5-9. IC PIN DESCRIPTIONS

• IC801 LC6621108A (SYSTEM CONTROL) (BASE UNIT)

Pin No. Pin Name I/O Pin Description

1 RSSI CTRL O RSSI sens select output (L: Low sens)

2 EEPROM DATA I/O EEPROM data input/output (Not used in this set.)

3 EEROM CLK O EEPROM clock output (Not used in this set.)

4 RX-DATA I RF reception data input

5 CHARGE DET I Charge detection input

6 TX-DATA O Beep output at RF transmission data or outside the circle.

7 HOLD DET I Hold cancellation detection input

8 GND — Ground

9 OSC1 — Crystal oscillation input (4.048MHz)

10 OSC2 — Crystal oscillation output (4.048MHz)

11 VDD — Power supply pin

12 RESET — Reset input

13 TEST — Not used. (Fixed at L in this set.)

14 AC DET I AC adaptor without detection input

15 RING DET I Ring detection input

16 PLL-STB O PLL control standby output

17 PLL-CLK O PLL control clock output

18 PLL-DATA O PLL control data output

19 SIG-DATA-IN I RSSI/LOCK signal input (L:RSSI, H:LOCK)

20 TX+B CTRL O TX power control output

21 DTMF O DTMF output

22 DP O Pulse output

23 COL1 I MODEL1/PAGE input

24 COL2 I MODEL2/ T/P input

25 COL3 I MODEL3/MAKE input

26 COL4 I FLASH time/ D/P input

27 ROW1 O Matrix 1 output

28 ROW2 O Matrix 2 output

29 TEST I/O I/O At TEST start-up or ID writing, data input/output. (L: TEST start-up)

30 TEST CLK/POWER LED I/O At initial ID writing, clock input/output and flashing on power failure.

IC501 TB31224F (BASE MAIN BOARD)

IC1 TB31224F (HAND MAIN BOARD)

IC901 MC34063AM

12345678910

38 37 36 35 34 32

33 31 30 29 28 27 26 25

1st

MIXER

2nd

MIXER

BATTERY

ALARM

DATA

LATCH

CONTROL

LIMITER

EXPANDER

COMPRESSOR

IF AMP QUOD

LACHA

DETECT

LPF

NOISE

FILTER

DATA

COMPARATOR

RSSI

RECEIVE

AMP

E-MUTE

C-MUTE

MIC

AMP

PRE AMP

SPLATTER

2nd

LOCAL

PLL

VCO

VREF

VCC2

C-RECT

VCC3

E-RECT N-REC VCC1

GND1

C-NF

–

1.25V

REFERENCE

REGULATOR

COMPARATOR

IPK

OSCILLATOR

DRIVER

COLLECTOR

COMPARATOR

INVERTING

INPUT

IPK SENSE

VCC

GND

TIMING

CAPACITOR

SWITCHING

EMITTER

SWITCHING

COLLECTOR

– 39 –

• IC401 LC662716A (SYSTEM CONTROL) (HANDSET)

Pin No. Pin Name I/O Pin Description

1 BEEP ATT O Beep volume High/Low control output (L: High)

2 TX-DATA O RF transmission data output

3 BEEP O Beep output

4 VSS — Ground

5 OSC1 — Crystal oscillation input (4.048MHz)

6 OSC2 — Crystal oscillation output (4.048MHz)

7 VDD — Power supply pin

8 RESET — Reset input

9 BAT-IN I Battery detection input

10 PE1 — Not used. (Fixed at L in this set.)

11 TEST — Not used. (Fixed at L in this set.)

12 HOLD I Input for intermittent. (CR external)

13 – 16 ACT4 O Output for intermittent reception control. (L: at operation)

17 CHARGE DET I Charge detection input (H: in charge)

18 BAT-LOW-IN I Battery low-voltage detection input

19 — — Not used. (Fixed at L (SPP-874/884:E92), H (SPP-884:E12) in this set.)

20 RX-DATA I RF reception data input

21 PLL-STB O PLL control standby output

22 PLL-DATA O PLL control data output

23 PLL-CLK O PLL control clock output

24 SIG-DATA-IN I RSSI/LOCK signal input (L: RSSI, H: LOCK)

25 TX+B CTRL O TX power control output

26 HICUT MUTE O High band noise mute output

27 RSSI CTRL O RSSI sens select output (L: Low sens)

28 VOLUME O VOLUME HIGH/NORM select output

29 – 32 P80 – 83 O Not used. (Fixed at H in this set.)

33 MODE0 I Destination model select input 0 (Fixed at L (SPP-874:E92/884),

H (SPP-874:E12) in this set.)

34 MODE1 I Destination model select input 1 (Fixed at L in this set.)

35 TEST CLK I/O At initial ID writing, clock input/output.

36 TEST I/O I/O At TEST start-up or ID writing, data input/output. (L: TEST start-up)

37, 38 PA0, 1 — Not used. (Fixed at L in this set.)

39 LIGHT O Key & LCD back light LED control output

40 TALK LED O TALK LED control output

41 – 45 ROW1 – 5 O Key matrix output

46 JOG-EN1 I JOG input

47 JOG-PUSH I JOG input

48 JOG-EN2 I JOG input

49 – 52 COL1 – 4 I Key matrix input

53 LCD+B CTRL O LCD power control output (L: at operation)

54 LCD-E O LCD-R/W trigger output

55 LCD-R/W O LCD-R/W control output

56 LCD-RS O LCD register select signal output

57 – 60 LCD-DB4 – 7 O LCD-DATA output

61 EEPROM WP O EEPROM write protect output

62 EEPROM DATA I/O EEPROM data input/output

63 EEPROM CLK O EEPROM clock output

64 MIC ON O MIC ON/OFF control output (L: OFF)

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