27.1.1999
8dds50gb_fm5.fm
8
Product: DDS-50(Office set) / YO0311
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. The 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 does it have a high output. 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.
8.1.3.3 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 the power amplifier I499 are controlled with signal HS_CTRL. This sig-
nal is inverted from the DC level of the handset earphone signal.
The 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. Remov-
ing 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 SIGMA GOLD TDP-52-SN3
Страница 1: ...27 1 1999 Dp_52ngbTOC fm 1 Product TDP 52 SN3 SERVICE MANUAL BENEFON SIGMA GOLD TDP 52 SN3 ...
Страница 12: ...27 1 1999 2DP_52GB 7 Product TDP 52 SN3 General Line interface Branching unit LIF 40 DB 40 ...
Страница 14: ...27 1 1999 2DP_52GB 9 Product TDP 52 SN3 General Belt clip Hand strap Portable hands free BeneWin ...
Страница 15: ...1user_gb fm 1 2 0 OWNER S MANUAL ...
Страница 53: ...27 1 1999 4A0701GB __1 19 Product TDP 52 SN3 Sigma Gold OA0701 Proc The Top Side Layout PA0700 A5 ...
Страница 54: ...27 1 1999 4A0701GB __1 20 Product TDP 52 SN3 Sigma Gold OA0701 Proc The Bottom Side Layout PA0700 A5 ...
Страница 57: ...27 1 1999 4A0701GB __1 23 Product TDP 52 SN3 Sigma Gold OA0701 Proc ...
Страница 58: ...27 1 1999 4A0701GB __1 24 Product TDP 52 SN3 Sigma Gold OA0701 Proc ...
Страница 59: ...27 1 1999 4A0701GB __1 25 Product TDP 52 SN3 Sigma Gold OA0701 Proc ...
Страница 60: ...27 1 1999 4A0701GB __1 26 Product TDP 52 SN3 Sigma Gold OA0701 Proc ...
Страница 61: ...27 1 1999 4A0701GB __1 27 Product TDP 52 SN3 Sigma Gold OA0701 Proc ...
Страница 62: ...27 1 1999 4A0701GB __1 28 Product TDP 52 SN3 Sigma Gold OA0701 Proc ...
Страница 67: ...27 1 1999 4H0700GB __2 33 Product TDP 52 SN3 Sigma Gold OH0700 The Top Side Layout PH0700 A5 ...
Страница 68: ...27 1 1999 4H0700GB __2 34 Product TDP 52 SN3 Sigma Gold OH0700 The Bottom Side Layout PH0700 A5 ...
Страница 69: ...27 1 1999 4H0700GB __2 35 Product TDP 52 SN3 Sigma Gold OH0700 ...
Страница 76: ...27 1 1999 4Z0700GB __2 42 Product TDP 52 SN3 Sigma Gold OY0725 RF The Top Side Layout PY0700A3 OY0725 RF ...
Страница 77: ...27 1 1999 4Z0700GB __2 43 Product TDP 52 SN3 Sigma Gold OY0725 RF The Bottom Side Layout PY0700A3 ...
Страница 84: ...27 1 1999 4Y0725GB 50 Product TDP 52 SN3 Sigma Gold OY0725 RF ...
Страница 85: ...27 1 1999 4Y0725GB 51 Product TDP 52 SN3 Sigma Gold OY0725 RF ...
Страница 86: ...27 1 1999 4Y0725GB 52 Product TDP 52 SN3 Sigma Gold OY0725 RF ...
Страница 87: ...26 1 1999 8HAR_GB fm 1 6 0 CHARGING CHARGING ...
Страница 90: ...26 1 1999 8CARA_GB fm 1 7 0 CAR ASSEMBLY KIT CAR ASSEMBLY KIT ...
Страница 98: ...27 1 1999 8udh50gb_fm5 fm 9 Product UDH 50 Carbox OO0700 The Top Side Layout PW0700B2 ...
Страница 99: ...27 1 1999 8udh50gb_fm5 fm 10 Product UDH 50 Carbox OO0700 The Bottom Side Layout PW0700B2 ...
Страница 100: ...27 1 1999 8udh50gb_fm5 fm 11 Product UDH 50 Carbox OO0700 A2 ...
Страница 101: ...27 1 1999 8udh50gb_fm5 fm 12 Product UDH 50 Carbox OO0700 A2 ...
Страница 102: ...27 1 1999 8udh50gb_fm5 fm 13 Product UDH 50 Carbox OO0700 A2 ...
Страница 103: ...27 1 1999 8udh50gb_fm5 fm 14 Product UDH 50 Carbox OO0700 A2 ...
Страница 113: ...27 1 1999 8UDH50GB __1_f 24 Product UDH 50 Carbox OW0700 The Top Side Layout PW0700A5 ...
Страница 114: ...27 1 1999 8UDH50GB __1_f 25 Product UDH 50 Carbox OW0700 The Bottom Side Layout PW0700A5 ...
Страница 115: ...27 1 1999 8UDH50GB __1_f 26 Product UDH 50 Carbox OW0700 A5 ...
Страница 116: ...27 1 1999 8UDH50GB __1_f 27 Product UDH 50 Carbox OW0700 A5 ...
Страница 117: ...27 1 1999 8UDH50GB __1_f 28 Product UDH 50 Carbox OW0700 A5 ...
Страница 118: ...27 1 1999 8UDH50GB __1_f 29 Product UDH 50 Carbox OW0700 A5 ...
Страница 119: ...27 1 1999 8UDH50GB __1_f 30 Product UDH 50 Carbox OW0700 A5 ...
Страница 124: ...27 1 1999 8kds50gb_fm5 fm 35 Product KDS 50 Hands free Cradle YO0701 KDS 50 ...
Страница 129: ...27 1 1999 8HDS50GB_fm5 f 40 Product HDS 50 Ext Handset With Cradle The Top Side Layout PO0009A1 Schematic OO0009A1 ...
Страница 130: ...27 1 1999 8HDS50GB_fm5 f 41 Product HDS 50 Ext Handset With Cradle The Bottom Side Layout PO0009A1 Schematic OO0009A1 ...
Страница 131: ...27 1 1999 8HDS50GB_fm5 f 42 Product HDS 50 Ext Handset With Cradle HLS 41 HDS 50 HXS 40 ...
Страница 132: ...27 1 1999 8HDS50GB_fm5 f 43 Product HDS 50 Ext Handset With Cradle 7 4 8 Cradle 7 4 8 1 Mechanics ...
Страница 133: ...27 1 1999 8OSET_GB fm 1 8 0 OFFICE SET OFFICE SET ...
Страница 147: ...27 1 1999 8dds50gb_fm5 fm 15 Product DDS 50 Office set OO0303 ...
Страница 148: ...27 1 1999 8dds50gb_fm5 fm 16 Product DDS 50 Office set OO0303 ...
Страница 149: ...27 1 1999 8dds50gb_fm5 fm 17 Product DDS 50 Office set OO0303 ...
Страница 151: ...27 1 1999 8dds50gb_fm5 fm 19 Product DDS 50 Office set OO0301 ...
Страница 153: ...27 1 1999 8dds50gb_fm5 fm 21 Product DDS 50 Office set OO0302 ...
Страница 154: ...27 1 1999 8dds50gb_fm5 fm 22 Product DDS 50 Office set OO0302 ...
Страница 159: ...27 1 1999 8hxs40gb_fm5 fm 27 Product HXS 40 External Handset The Top Side Layout PO0009A1 Schematic OO0009A1 ...
Страница 160: ...27 1 1999 8hxs40gb_fm5 fm 28 Product HXS 40 External Handset The Bottom Side Layout PO0009A1 Schematic OO0009A1 ...
Страница 161: ...27 1 1999 8hxs40gb_fm5 fm 29 Product HXS 40 External Handset HLS 41 HDS 50 HXS 40 ...
Страница 162: ...27 1 1999 8OTHE_GB fm 1 9 0 OTHER ACCESSORIES OTHER ACCESSORIES ...
Страница 173: ...27 1 1999 Xo0245e4_fm5 fm 12 Product LIF 40 Line Interface OO0245 OO0245 Component Side Layout PO0245A0 ...
Страница 174: ...27 1 1999 Xo0245e4_fm5 fm 13 Product LIF 40 Line Interface OO0245 Solder Side Layout PO0245A0 ...
Страница 175: ...27 1 1999 Xo0245e4_fm5 fm 14 Product LIF 40 Line Interface OO0245 ...
Страница 176: ...27 1 1999 Xo0245e4_fm5 fm 15 Product LIF 40 Line Interface OO0245 ...
Страница 177: ...27 1 1999 Xo0236e4_fm5 fm 16 Product DB 40 Branching Unit YO0236 9 2 BRANCHING UNIT YO0236 ...
Страница 182: ...27 1 1999 Xo0236e4_fm5 fm 21 Product DB 40 Branching Unit OO0241 Solder Side Layout PO0241A3 Schematic OO0241A3 ...
Страница 183: ...27 1 1999 Xo0236e4_fm5 fm 22 Product DB 40 Branching Unit OO0241 ...