Sony IT-B7 - Telephone Service Manual Download Page 2 | Manualshive

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SECTION 1

GENERAL

This section is extracted
from instruction manual.

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Summary of Contents for IT-B7 - Telephone

Page 1: ... oz Supplied accessories Telephone line cords 2 Canadian Telephone line cord 1 E SP Wall bracket 1 Canadian Design and specifications are subject to change without notice Abbreviation SP Singapore model SPECIFICATIONS 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 MICROFILM Photo Gray type REVI...

Page 2: ... 2 SECTION 1 GENERAL This section is extracted from instruction manual ...

Page 3: ...ssembly procedure in the numerical order given 2 1 CABINET LOWER 3 cabinet lower 1 BTP 2 6X6 2 KEY board 3 rubber key switch 4 button 12 key 1 JP2 2 BTP 2 6X6 3 BTP 2 6X6 4 MAIN board 5 modular jack 1 BTP 3X10 2 BTP 3X10 2 2 KEY BOARD 2 3 MAIN BOARD ...

Page 4: ...C 8 U30 D 11 ZD1 C 9 ZD10 D 11 ZD51 D 10 ZD52 C 8 ZD55 F 13 D1 C 10 D2 C 10 D3 B 10 D4 B 10 D5 B 8 D10 D11 B 11 D12 D13 B 11 D14 D 11 D40 E 13 LED1 G 4 Q10 C 12 Q11 C 11 Q20 D 12 Ref No Location Semiconductor Location Ref No Location Note X parts extracted from the component side Carbon pattern b Pattern from the side which enables seeing ...

Page 5: ...dicated except for electrolytics and tantalums All resistors are in Ω and 1 4 W or less unless otherwise specified C panel designation U B Line Power voltage is dc 12 V and fed with regulated dc power supply from JP1 with 100 Ω in series Voltage is dc with respect to ground under no signal condition no mark OFF HOOK ON HOOK Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may ...

Page 6: ...1 ZD1 B 9 ZD10 D 11 ZD54 E 13 ZD55 E 13 D1 C 10 D2 C 10 D3 B 10 D4 B 10 D5 B 8 D10 C 11 D11 C 11 D12 C 11 D13 C 11 D14 D 11 D50 E 10 D51 E 10 Q10 D 11 Q11 D 12 Ref No Location Semiconductor Location Ref No Location Note X parts extracted from the component side Carbon pattern b Pattern from the side which enables seeing ...

Page 7: ... 11 12 3 4 SCHEMATIC DIAGRAM E Singapore Model IT B7 IC Block Diagram U1 BA8206 ...

Page 8: ...R ASSY CREAM E SP 11 X 3376 475 1 CABINET LOWER ASSY BLUE E SP JP50 1 785 426 11 JACK MODULAR 4C 4P HANDSET 1 670 806 11 KEY BOARD Canadian 1 670 808 11 KEY BOARD E SP DIODE LED1 8 719 072 22 LED SML 310LTT86 MN HOLD Canadian A 3672 540 A MAIN BOARD COMPLETE Canadian A 3672 545 A MAIN BOARD COMPLETE E SP CAPACITOR C1 1 136 193 11 FILM 0 47uF 5 250V C2 1 126 964 11 ELECT 10uF 20 50V C3 1 163 809 11...

Page 9: ...R13 1 216 079 00 METAL CHIP 18K 5 1 10W Canadian R13 1 216 113 00 METAL CHIP 470K 5 1 10W E SP R16 1 216 049 11 RES CHIP 1K 5 1 10W E SP R20 1 249 469 11 CARBON 100K 5 1 4W R21 1 216 294 00 METAL CHIP 10M 5 1 8W R24 1 216 109 00 METAL CHIP 330K 5 1 10W Canadian R25 1 216 689 11 METAL CHIP 39K 0 5 1 10W Canadian R26 1 249 441 11 CARBON 100K 5 1 4W Canadian R27 1 216 133 00 METAL CHIP 3 3M 5 1 10W C...

Page 10: ...RINGER LEVEL SW20 1 692 494 21 SWITCH HOOK HOOK SW31 1 572 903 51 SWITCH SLIDE DIAL MODE SW50 1 692 207 21 SWITCH SLIDE HANDSET VOLUME Canadian IC U1 8 759 081 73 IC BA8206 U30 8 759 559 34 IC LC662204A 4K56 VIBRATOR X30 1 577 306 11 OSCILLATOR CERAMIC 1MHz DISCHARGE GAP Z1 1 517 224 11 GAP DISCHARGE Canadian Z1 1 801 271 11 VARISTOR VF07M10820K E SP DIODE ZD1 8 719 983 24 DIODE MTZJ T 77 27C ZD10...

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