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MICROFILM

E Model

SERVICE MANUAL

CORDLESS TELEPHONE

SPP-Q123

SPECIFICATIONS

Summary of Contents for SPP-Q123

Page 1: ... 1 MICROFILM E Model SERVICE MANUAL CORDLESS TELEPHONE SPP Q123 SPECIFICATIONS ...

Page 2: ...at the minus side of a tantalum capacitor may be damaged by heat 1 GENERAL 3 2 DISASSEMBLY 2 1 Battery Case Lid 7 2 2 Cabinet Rear 7 2 3 Hand Main Board 7 3 TEST MODE 8 4 ELECTRICAL ADJUSTMENTS 13 5 DIAGRAMS 5 1 Block Diagrams Base Unit Section 15 Handset Section 17 5 2 Printed Wiring Board Base Unit Section 21 5 3 Schematic Diagram Base Unit Section 23 5 4 Schematic Diagram Handset Section 25 5 5...

Page 3: ...2 3 4 5 6 7 8 5 4 3 2 1 7 8 9 º 6 LOCATION AND FUNCTION OF CONTROLS BASE UNIT 6 LINE jack 7 DIAL MODE switch 8 DC IN 9V jack HANDSET 1 SPEED DIAL 2 TALK button 3 TALK BATT low lamp 4 OFF button 5 SPEAKER 6 Helical antenna 7 FLASH button 8 Dialing keys 9 CHANNEL button 0 REDIAL PAUSE button PGM Microphone ...

Page 4: ... 4 This section is extracted from instruction manual ...

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Page 7: ...edure in the numerical order given 2 1 BATTERY CASE LID Nickel cadmium battery Battery case lid 1 2 3 4 Screws 2 6x8 Cabinet rear 1 1 2 2 3 1 Screws 2 6x8 2 Screw 2 6x12 4 Connector CN101 Hand main board Helical antenna 3 2 2 CABINET REAR 2 3 HAND MAIN BOARD ...

Page 8: ...e in 1 CH Release the Test Mode 1 Pull out the AC adaptor and turn off the power 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 ...

Page 9: ...tected Light OFF L H H If RX LOCK is detected Light OFF If RX LOCK is detected Light OFF H L L BEEP output H L H ID CODE output H H L If RING is detected Light ON If RING is detected Light ON H H H If PAGE KEY is input Light ON If PAGE KEY is input Light ON Pin Name Pin No Function H Logic L Logic CHARGE DET TP21 18 State in section 1 Input Refer to section 1 Input Pin No 23 24 25 26 TX frequency ...

Page 10: ...on reset is applied while a H high is input the TEST SW TP43 terminal IC501 40pin the RING Level H 500msec sounds 2 Following that at a timing in which the TEST SW terminal has H high input there is output of L low by the CH chan nel setting control terminal Then there is PLL setting to the CH which was read to wit the CH setting terminal according to that L low output 3 Set the TX setting to TX O...

Page 11: ... 43 820 48 860 CH4 H L L H H 43 840 48 920 CH5 H L H L L 43 920 49 020 CH6 H L H L H 43 960 49 080 CH7 H L H H L 44 120 49 100 CH8 H L H H H 44 160 49 160 CH9 H H L L L 44 180 49 200 CH10 H H L L H 44 200 49 240 CH11 H H L H L 44 320 49 280 CH12 H H L H H 44 360 49 360 CH13 H H H L L 44 400 49 400 CH14 H H H L H 44 460 49 460 CH15 H H H H L 44 480 49 500 CH16 L L H H L 46 610 49 670 CH17 L L H H H...

Page 12: ...X modulation level and RSSI H sensitivity setting is as follows The following are possible 15 n 44 n 36 36 n 15 n 44 44 n 36 n 15 Upper position 4 Lower position TX RX RF RX AF MIC Lk 0 QUIT 10 ch 20 ch Batt Alarm H A L T G KEY TEST 1 1 ch 11 ch 21 ch CHARGE DET G g G G G 2 2 ch 12 ch 22 ch G g g G G 3 3 ch 13 ch 23 ch g g G G G 4 4 ch 14 ch 24 ch RX LOCK g g g G G 5 5 ch 15 ch 25 ch TX LOCK g g g...

Page 13: ...el is the specified values Specified Value 2 6 to 10 6dBV RSSI H Sensitivity Adjustment Note Perform the adjustment at T3CH 28CH 49 910MHz as a rule Setting Procedure 1 Use the osclloscope to confirm the FM RF signal generator in put AF signal waveform and RSSI signal and use the RV101 so that they are synchronized duty is synchronized Adjustment Location digital voltmeter TP6 TX VT TP19 GND digit...

Page 14: ...SI H Sensitivity Adjustment Note Perform the adjustment at T1CH 26CH 43 780MHz as a rule Setting Procedure 1 Use the osclloscope to confirm the FM RF signal generator in put AF signal waveform and RSSI signal and use the RV101 so that they are synchronized duty is synchronized Adjustment Location digital voltmeter TP6 TX VT TP3 GND digital voltmeter TP5 RX VT TP3 GND FM RF signal generator Carrier...

Page 15: ...5 10 LIMITER AF AMP Q202 RELAY DRIVE Q201 COMPRESSOR DATA LATCH CONTROL D401 CHARGE 2 3 ANT 1 TELESCOPIC ANTENNA BPF1 BPF BPF51 BPF BPF2 BPF 46 0MHz 49 0MHz CF102 10 68MHz CF101 460kHz AMP AF OUT COMP IN L01 L02 RF IN MIX IN MIX OUT MIX OUT CONTR TVCOIN D COMP OUT PD OUT PD OUT RV101 RSSI H MODULATION D51 PRE AMP PRE IN MUTE EXP OUT EXPANDER IC101 2 3 FIL OUT LPF CLK DATA STB AMP COMPRESSOR IC101 ...

Page 16: ...101 460kHz R01 R02 RECE IN RECEIVER AMP SP1 SPEAKER AF OUT COMP IN L01 L02 RF IN MIX IN MIX OUT MIX OUT CONTR TVCOIN RSSI D COMP OUT RSSI COMP PD OUT PD OUT RV101 RSSI H D501 CN202 D203 D202 CN201 TALK BATT LOW MODULATION D51 PRE AMP PRE IN MUTE EXP OUT EXPANDER IC101 2 3 FIL OUT LPF CLK DATA STB BATT LOW SIG OUT BATT LOW SWITCH Q502 BUZZER DRIVE Q301 BZ301 BUZZER MIC AMP MIC1 MIC COMPRESSOR IC101...

Page 17: ...Ω in series base unit Power voltage is dc 4V and fed with regulated dc power supply from external battery terminal CN201 handset Voltages and waveforms are dc with respect to ground under no signal conditions no mark TALK Voltages are taken with aVOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations...

Page 18: ...uctor Location D1 C 2 D51 G 2 D101 D 8 D201 B 9 D203 B 8 D204 B 8 D205 B 7 D301 C 8 D401 B 5 D601 G 7 D602 C 8 D701 F 4 D702 F 3 D703 F 4 IC101 E 4 IC301 G 10 IC501 F 8 Q51 E 1 Q52 F 2 Q54 E 2 Q201 B 6 Q202 D 6 Q301 C 8 Q302 F 10 Q401 A 2 Q402 B 4 Q403 B 4 Q601 G 6 Q701 G 4 Q702 G 4 ...

Page 19: ...SPP Q123 23 24 5 3 SCHEMATIC DIAGRAM BASE UNIT SECTION See page 20 for Waveforms Note Signal path N RX O TX ...

Page 20: ...SPP Q123 5 4 SCHEMATIC DIAGRAM HANDSET SECTION See page 20 for Waveforms 25 26 Note Signal path N RX From Tel Line O TX To Tel Line ...

Page 21: ...conductor Location Ref No Location D51 D 3 D101 B 3 D202 C 11 D203 B 9 D301 C 11 D401 G 7 D402 F 7 D403 G 9 D404 F 9 D501 A 5 D502 D 8 D504 D 9 IC101 C 4 IC201 A 11 IC501 C 8 Q1 B 3 Q51 C 2 Q52 D 3 Q54 C 2 Q201 B 8 Q202 B 11 Q301 D 11 Q401 F 4 Q501 B 7 Q502 B 7 ...

Page 22: ...C Not used Open 43 NC Not used Open 44 TEST ACT I During test mode causes start of intermittent operation with external input 45 RSSI H L O RSSI sense H L selector L Low sense 46 H MUTE O Half mute control L Mute ON 47 BATT DET I Battery detection input H DET 48 LED O Talk LED control L LED ON Pin No Pin Name I O Function Pin No Pin Name I O Function 5 6 IC PIN FUNCTION DESCRIPTION IC501 SB662106A...

Page 23: ... Description Remark Ref No Part No Description Remark 10 3 935 515 41 LID BATTERY CASE 11 3 370 982 01 FOOT H TWN RUBBER 12 3 935 520 01 CUSHION BATTERY 13 3 939 071 01 SPONGE MICROPHONE ANT1 1 501 839 11 ANTENNA HELICAL HANDSET MIC1 1 542 118 11 MICROPHONE ELECTRET CONDENSER SP1 1 505 333 11 SPEAKER 2 1CM 1 3 024 411 01 HOLDER SPEAKER 2 3 935 522 01 CUSHION SP 2 3 3 935 513 61 CABINET FRONT 4 3 9...

Page 24: ...50 01 LID BASE BATTERY CASE 61 3 029 154 01 CUSHION BASE BATTERY ANT1 1 501 511 11 ANTENNA TELESCOPIC BASE UNIT 51 3 936 694 41 CLAW WALL HOOK 52 3 020 458 61 CABINET UPPER 53 3 936 695 01 TERMINAL CHARGE 54 3 936 692 41 BUTTON PAGE 55 3 936 693 01 LENS 56 A 3672 564 A BASE MAIN BOARD COMPLETE E12 MODEL 56 A 3672 565 A BASE MAIN BOARD COMPLETE E92 MODEL 56 57 1 1 ANT1 54 55 3 51 59 52 53 58 60 3 1...

Page 25: ... 1 163 239 11 CERAMIC CHIP 33PF 5 50V C103 1 163 106 00 CERAMIC CHIP 36PF 5 50V C105 1 163 243 11 CERAMIC CHIP 47PF 5 50V C106 1 163 137 00 CERAMIC CHIP 680PF 5 50V C107 1 165 319 11 CERAMIC CHIP 0 1uF 50V C108 1 124 261 00 ELECT 10uF 20 50V C109 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C110 1 163 035 00 CERAMIC CHIP 0 047uF 50V C111 1 164 161 11 CERAMIC CHIP 0 0022uF 10 100V C112 1 163 037 11 CERA...

Page 26: ...COIL OSC L501 1 408 958 21 INDUCTOR 1uH MODULAR JACK MJ201 1 766 250 11 JACK MODULAR 2C 6P PHOTO INTERUPTER PH201 8 719 156 73 PHOTO COUPLER PS2501 1LA TRANSISTOR Q51 8 729 031 85 TRANSISTOR 2SC4365 34 TB Q52 8 729 031 86 TRANSISTOR 2SC3142 J3J4 TB Q54 8 729 026 49 TRANSISTOR 2SA1037AK T146 R Q201 8 729 120 28 TRANSISTOR 2SC1623 L5L6 Q202 8 729 106 68 TRANSISTOR 2SD1615A GP Q301 8 729 106 68 TRANS...

Page 27: ...1K 5 1 10W R508 1 216 097 00 RES CHIP 100K 5 1 10W R509 1 216 121 00 RES CHIP 1M 5 1 10W R510 1 216 246 00 RES CHIP 100K 5 1 8W E12 MODEL R511 1 216 097 00 RES CHIP 100K 5 1 10W R513 1 216 075 00 METAL CHIP 12K 5 1 10W R514 1 216 073 00 METAL CHIP 10K 5 1 10W R515 1 216 057 00 METAL CHIP 2 2K 5 1 10W R522 1 216 097 00 RES CHIP 100K 5 1 10W R523 1 216 097 00 RES CHIP 100K 5 1 10W R524 1 216 097 00 ...

Page 28: ... 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C138 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C140 1 104 396 11 ELECT 10uF 20 16V C141 1 163 021 11 CERAMIC CHIP 0 01uF 10 50V C142 1 163 809 11 CERAMIC CHIP 0 047uF 10 25V C143 1 162 638 11 CERAMIC CHIP 1uF 16V C148 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C202 1 164 336 11 CERAMIC CHIP 0 33uF 25V C204 1 163 809 11 CERAMIC CHIP 0 047uF 10 25V C205 1 163 0...

Page 29: ...46 00 RES CHIP 100K 5 1 8W R109 1 216 097 00 RES CHIP 100K 5 1 10W R110 1 216 097 00 RES CHIP 100K 5 1 10W R111 1 216 109 00 METAL CHIP 330K 5 1 10W R112 1 216 093 00 METAL CHIP 68K 5 1 10W R113 1 216 085 00 METAL CHIP 33K 5 1 10W R114 1 216 093 00 METAL CHIP 68K 5 1 10W R115 1 216 081 00 METAL CHIP 22K 5 1 10W R116 1 216 097 00 RES CHIP 100K 5 1 10W R118 1 216 073 00 METAL CHIP 10K 5 1 10W R119 1...

Page 30: ...4 31 SWITCH RUBBER KEY ANT1 1 501 511 11 ANTENNA TELESCOPIC BASE UNIT ANT1 1 501 839 11 ANTENNA HELICAL HANDSET MIC1 1 542 118 11 MICROPHONE ELECTRET CONDENSER SP1 1 505 333 11 SPEAKER 2 1CM ACCESSORIES PACKING MATERIALS 1 473 708 11 ADAPTOR AC AC T56 E92 MODEL 1 475 210 11 ADAPTOR AC AC T56 E12 MODEL 1 528 710 12 BATTERY NICKEL CADMIUM BP T16 1 696 454 11 CORD WITH MODULAR PLUG LINE 3 864 676 11 ...

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