28.1.1999
8dds40gb_fm5.fm
8
Product: DDS-40(Office set) / YO0310
Spare battery discharge is controlled with signal D2. High level on output switches
transistors Q287 and Q285 into conducting state which makes current flow through
resistors R280-283 and transistor Q285. Nominal value of discharge current is ~ 180
mA.
Signal D3 is used to turn on/off the detect current supply I234. Logic high signal
turns the regulator off and logic low on. When the phone is present, the state of this
pin is usually low. Only when the charge control line I0 has a value greater than 4
VDC is this output turned to high state. Regulator I234 output is ~ 7 VDC, Imax 150
mA.
Charge indicator leds are turned on using the signals D4 to D7. Logic high signals
switch transistors Q303, Q305, Q313 and Q315 into conducting state. The emitter
pins of the transistors are directly connected to the anode pins of the leds.
9.1.3.3 Audio
The signal P1 (HF_OFF) of the I2C circuit I203 is used to control the analog
switches I435 and I437. Q512 inverts this signal for switch I484. The inverted signal
is also used for controlling the MUTE pin of the power amplifier I528. Low level sig-
nal turns MUTE on and high level signal (3 V) off respectively. Switch I481 and
MUTE pin of power amplifier I499 are controlled with signal HS_CTRL. This signal is
inverted from the DC level of the handset earphone signal.
HOOK signal is controlled with the handset. Whenever the handset has been placed
on the holder, the DC level of the HS_ERP signal should be ~ 4,2 V. Removing the
handset from the holder makes the voltage drop to a value of 0,4 VDC. This signal
and the transistors Q474 and Q475 are used to control the DC level of the EXTERP
signal. ON_HOOK level is ~ 5 VDC, OFF_HOOK ~ 0,6 VDC.
Содержание DELTA TDP-40-TN2
Страница 1: ...28 1 1999 Tdp40enTOC fm 1 Product TDP 40 TN2 Delta SERVICE MANUAL BENEFON DELTA TDP 40 TN2 ...
Страница 16: ...1user_gb fm 1 2 0 OWNER S MANUAL ...
Страница 46: ...28 1 1999 TDP 40E7_fm5 fm 1 Product TDP 40 TN2 6 0 PHONE S CONSTRUCTION ...
Страница 74: ...28 1 1999 XA0300E4_fm5 fm 29 Product TDP 40 TN2 Delta OA0300 Solder Side Layout PA0300A4 Schematic OA0300A C3 ...
Страница 77: ...28 1 1999 XA0300E4_fm5 fm 32 Product TDP 40 TN2 Delta OA0300 ...
Страница 78: ...28 1 1999 XA0300E4_fm5 fm 33 Product TDP 40 TN2 Delta OA0300 ...
Страница 79: ...28 1 1999 XA0300E4_fm5 fm 34 Product TDP 40 TN2 Delta OA0300 ...
Страница 80: ...28 1 1999 XA0300E4_fm5 fm 35 Product TDP 40 TN2 Delta OA0300 ...
Страница 81: ...28 1 1999 XA0300E4_fm5 fm 36 Product TDP 40 TN2 Delta OA0300 ...
Страница 89: ...28 1 1999 XS030ZE4_fm5 fm 44 Product TDP 40 TN2 Delta OS0320 Component Side Layout PS0300A1 OS0320 ...
Страница 90: ...28 1 1999 XS030ZE4_fm5 fm 45 Product TDP 40 TN2 Delta OS0320 Solder Side Layout PS0300A1 ...
Страница 96: ......
Страница 97: ......
Страница 98: ......
Страница 102: ...28 1 1999 XQ0300E4_fm5 fm 57 Product TDP 40 TN2 Delta OQ0300 Regulator Solder Side Layout PQ0300A1 Schematic OQ0300A1 ...
Страница 103: ...28 1 1999 XQ0300E4_fm5 fm 58 Product TDP 40 TN2 Delta OQ0300 Regulator ...
Страница 106: ...28 1 1999 XT0300E4_fm5 fm 61 Product TDP 40 TN2 Delta OT0300 Antenna Switch ...
Страница 107: ...28 1 1999 XO0300E4_fm5 fm 62 Product TDP 40 TN2 Delta YO0300 Batteries 6 4 BATTERIES YO0300 Batteries ...
Страница 110: ...28 1 1999 XO0300E4_fm5 fm 65 Product TDP 40 TN2 Delta PO0403 PO0403 Component Side Layout Solder Side Layout ...
Страница 111: ...28 1 1999 XO0300E4_fm5 fm 66 Product TDP 40 TN2 Delta PO0403 ...
Страница 112: ...28 1 1999 8HAR_GB fm 1 7 0 CHARGING CHARGING ...
Страница 115: ...28 1 1999 XO0244E4_fm5 fm 4 Product HPT 40 Desktop Charger YO0244 7 3 DESKTOP CHARGER YO0244 ...
Страница 124: ...28 1 1999 XO0244E4_fm5 fm 13 Product HPT 40 Desktop Charger OO0244 Component Side Layout PO0244A0 Schematic OO0244A0 ...
Страница 125: ...28 1 1999 XO0244E4_fm5 fm 14 Product HPT 40 Desktop Charger OO0244 Solder Side Layout PO0244A0 Schematic OO0244A0 ...
Страница 126: ...28 1 1999 XO0244E4_fm5 fm 15 Product HPT 40 Desktop Charger OO0244 Component Side layout PO0247A0 Schematic OO0247A0 ...
Страница 127: ...28 1 1999 XO0244E4_fm5 fm 16 Product HPT 40 Desktop Charger OO0244 Solder Side Layout PO0247A0 Schematic OO0247A0 ...
Страница 128: ...28 1 1999 XO0244E4_fm5 fm 17 Product HPT 40 Desktop Charger OO0244 ...
Страница 129: ...28 1 1999 XO0244E4_fm5 fm 18 Product HPT 40 Desktop Charger OO0244 ...
Страница 139: ...28 1 1999 Xo0314e4_fm5 fm 10 Product CIU 40 Carbox OW0314 The Top Side Layout PW0314A1 ...
Страница 140: ...28 1 1999 Xo0314e4_fm5 fm 11 Product CIU 40 Carbox OW0314 The Bottom Side Layout PW0314A1 ...
Страница 141: ...28 1 1999 Xo0314e4_fm5 fm 12 Product CIU 40 Carbox OW0314 ...
Страница 142: ...28 1 1999 Xo0314e4_fm5 fm 13 Product CIU 40 Carbox OW0314 ...
Страница 143: ...28 1 1999 Xo0314e4_fm5 fm 14 Product CIU 40 Carbox OW0314 ...
Страница 144: ...28 1 1999 Xo0314e4_fm5 fm 15 Product CIU 40 Carbox OW0314 ...
Страница 145: ...28 1 1999 Xo0314e4_fm5 fm 16 Product CIU 40 Carbox OW0314 ...
Страница 146: ...28 1 1999 XMOO24E4_fm5 f 17 Product HDH 40 Phone holder YM0024 8 2 PHONE HOLDER YM0024 ...
Страница 147: ...28 1 1999 XMOO24E4_fm5 f 18 Product HDH 40 Phone holder PO0243 Component Side Layout PO0243 ...
Страница 148: ...28 1 1999 XMOO24E4_fm5 f 19 Product HDH 40 Phone holder PO0243 Solder Side Layout ...
Страница 149: ...28 1 1999 XMOO24E4_fm5 f 20 Product HDH 40 Phone holder OO0343 module OO0343 module ...
Страница 154: ...28 1 1999 8HDS50GB_fm5 f 25 Product HDS 50 Ext Handset With Cradle The Top Side Layout PO0009A1 Schematic OO0009A1 ...
Страница 155: ...28 1 1999 8HDS50GB_fm5 f 26 Product HDS 50 Ext Handset With Cradle The Bottom Side Layout PO0009A1 Schematic OO0009A1 ...
Страница 156: ...28 1 1999 8HDS50GB_fm5 f 27 Product HDS 50 Ext Handset With Cradle HLS 41 HDS 50 HXS 40 ...
Страница 157: ...28 1 1999 8HDS50GB_fm5 f 28 Product HDS 50 Ext Handset With Cradle 8 3 8 Cradle 8 3 8 1 Mechanics ...
Страница 158: ...28 1 1999 8OSET_GB fm 1 9 0 OFFICE SET OFFICE SET ...
Страница 172: ...28 1 1999 8dds40gb_fm5 fm 15 Product DDS 40 Office set OO0300 ...
Страница 173: ...28 1 1999 8dds40gb_fm5 fm 16 Product DDS 40 Office set OO0300 ...
Страница 174: ...28 1 1999 8dds40gb_fm5 fm 17 Product DDS 40 Office set OO0300 ...
Страница 176: ...28 1 1999 8dds40gb_fm5 fm 19 Product DDS 40 Office set OO0301 ...
Страница 178: ...28 1 1999 8dds40gb_fm5 fm 21 Product DDS 40 Office set OO0302 ...
Страница 179: ...28 1 1999 8dds40gb_fm5 fm 22 Product DDS 40 Office set OO0302 ...
Страница 184: ...28 1 1999 8hxs40gb_fm5 fm 27 Product HXS 40 External Handset The Top Side Layout PO0009A1 Schematic OO0009A1 ...
Страница 185: ...28 1 1999 8hxs40gb_fm5 fm 28 Product HXS 40 External Handset The Bottom Side Layout PO0009A1 Schematic OO0009A1 ...
Страница 186: ...28 1 1999 8hxs40gb_fm5 fm 29 Product HXS 40 External Handset HLS 41 HDS 50 HXS 40 ...
Страница 187: ...28 1 1999 8OTHE_GB fm 1 10 0 OTHER ACCESSORIES OTHER ACCESSORIES ...
Страница 198: ...28 1 1999 Xo0245e4_fm5 fm 12 Product LIF 40 Line Interface OO0245 OO0245 Component Side Layout PO0245A0 ...
Страница 199: ...28 1 1999 Xo0245e4_fm5 fm 13 Product LIF 40 Line Interface OO0245 Solder Side Layout PO0245A0 ...
Страница 200: ...28 1 1999 Xo0245e4_fm5 fm 14 Product LIF 40 Line Interface OO0245 ...
Страница 201: ...28 1 1999 Xo0245e4_fm5 fm 15 Product LIF 40 Line Interface OO0245 ...
Страница 202: ...28 1 1999 Xo0236e4_fm5 fm 16 Product DB 40 Branching Unit YO0236 10 2 BRANCHING UNIT YO0236 ...
Страница 207: ...28 1 1999 Xo0236e4_fm5 fm 21 Product DB 40 Branching Unit OO0241 Solder Side Layout PO0241A3 Schematic OO0241A3 ...
Страница 208: ...28 1 1999 Xo0236e4_fm5 fm 22 Product DB 40 Branching Unit OO0241 ...