C 1 C service manual specifications general frequency band (spp-id975) 902 C 928 mhz frequency band (SPP-ID976) 923.1 C 927.75 mhz base phone : 18 w handset : 73 w operating channel 30 channels dial signal tone, 10 pps (pulse) selectable supplied accessories ac power adaptor ac-t122 (1) telephone line cords (2) wall bracket for base phone (1) rechargeable battery pack bp-t23 (1) handset power source rechargeable battery pack bp-t23 battery charging time approx. 12 hours battery life standby : approx. 7 days talk : approx. 6 hours dimensions approx. 58 177 46 mm (w/h/d), antenna excluded (approx. 2 3/8 7 1 13/16 inches) antenna: approx. 72 mm (approx. 2 7/8 inches) mass approx. 270 g (approx. 9.5 oz), battery included spp-id975/id976 us model spp-id975 canadian model SPP-ID976 cordless telephone microfilm photo: spp-id975 base phone power source dc 9v from ac power adaptor ac-t122 battery charging time approx. 24 hours dimensions approx. 166 63 225 mm (w/h/d), antenna excluded (approx. 6 5/8 2 1/2 8 7/8 inches) antenna: approx. 120 mm (approx. 4 3/4 inches) mass approx. 595 g (approx. 1 lb 9 oz), wall bracket excluded design and specifications are subject to change without notice. notes on chip component replacement never reuse a disconnected chip component. notice that the minus side of a tantalum capacitor may be dam- aged by heat. ver 1.0 1999. 11
spp-id975/id976 C 25 C C 26 C 4-3. schematic diagram base main section (1/2) (page 27) caution: pattern face side: parts on the pattern face side seen from the (side b) pattern face are indicated. parts face side: parts on the parts face side seen from the (side a) parts face are indicated. this note is common for printed wiring boards and schematic diagrams. (in addition to this, the necessary note is printed in each block.) for schematic diagrams ? all capacitors are in f unless otherwise noted. pf: ?f 50 wv or less are not indicated except for electrolytics and tantalums. ? all resistors are in w and 1 / 4 w or less unless otherwise specified. ? c : panel designation. ? u : b+ line. ? power voltage is dc 9 v and fed with regulated dc power supply from external power voltage jack. (base phone) ? power voltage is dc 12 v and fed with regulated dc power supply from j1008 with 100 w in series. (base phone) ? power voltage is dc 3 v and fed with regulated dc power supply from battery terminal. (handset) ? voltage is dc with respect to ground under no-signal condition. ? voltages are taken with a vom (input impedance 10 m w ). voltage variations may be noted due to normal produc- tion tolerances. ? signal path. n : tx (to tel line) o : rx (from tel line) p : bell for printed wiring boards ? x : parts extracted from the component side. ? : carbon pattern. ? z : through hole. ? b : pattern from the side which enables seeing. (the other layers patterns are not indicated.)
4-4. schematic diagram base main section (2/2) ? refer to page 41 for ic block diagrams. C 27 C C 28 C spp-id975/id976 rf unit (bu) (page 35) (page 26)
spp-id975/id976 4-7. schematic diagram base key section C 35 C C 36 C (page 27)
C 39 C C 40 C spp-id975/id976 4-9. schematic diagram hand main section ? refer to page 41 for ic block diagrams.
16 15 14 13 12 11 10 9 8 shift register 7 6 5 4 3 2 1 gnd parallel data output vcc qa a sqh reset serial data output shift clock latch clock output enable serial data input parallel data output qb qc qd qe qf qg qh latch lcd1001 j1003, 1004 1 2 4 18 17 3 u1003 u1005 ant1001 5 6 15 19 7 8 9 9 10 11 9 12 13 14 13 9 16 j1001, 1002 + 8 7 6 5 4 3 2 1 _ + _ vo2 cd cf 2 cf 1 v in gn d vcc vo1 bias circuit + 28 1 2 3 4 5 6 7 8 9 10 11 12 13 14 27 26 25 24 23 22 21 20 19 18 17 16 15 + + + + r r 400 bias back ground noise moniter back ground noise moniter att control agc level det level det 15mv vr vr vr vr rx att dp-det vcc r r tx att filter gnd fo fi co vcc hto(+) hto(? nti txo txi wco wci mute vcl ct cpr pu1 plo1 tlo1 tu1 rx0 rx1 rli2 rlo2 tlo2 tli2 cpt v8 section 5 exploded views note: ? the mechanical parts with no reference number in the exploded views are not supplied. ? items marked * are not stocked since they are seldom required for routine service. some delay should be anticipated when ordering these items. ? -xx and -x mean standardized parts, so they may have some difference from the original one. ? color indication of appearance parts example : knob, balance (white) ... (red) parts color cabinets color ref. no. part no. description remark 5-1. handset section r ref. no. part no. description remark ? accessories and packing materials are given in the last of this parts list. ? ic block diagrams u1006, 3007 cat93c86s-le10 u3001 mc74hc595af u3004 mc34118dw u3005 mc34119d C 41 C C 42 C r 1 8 2 3 4 instruction decoder, control logic and clock generators instruction register address register decoder iof 1024 (or 2048) data out buffer eeprom array 16384 bit & (1024x16) or (2048x8) read write amps data in/out resister 16 (or 8) bits high voltage generator and program timer vcc 7 nc 6 org 5 vss do di sk cs 1 3-038-148-01 key (hs), rubber (id975) 1 3-038-148-11 key (hs), rubber (id976) 2 3-038-075-01 case (fr) 3 3-041-211-01 rubber, microphone 4 3-038-081-01 lens (hs) 5 3-041-520-01 holder (hs), lcd 6 3-041-537-01 ring, cushion receiver 7 3-041-212-01 cushion, speaker 8 a-3672-875-a rf unit (hs) 9 7-685-548-19 screw +btp 3x12 type2 n-s 10 3-038-076-01 case (rear) 11 3-038-083-01 lid (hs), battery case 12 4-356-741-21 screw, tapping (bind 2x8) 13 4-356-741-11 screw, tapping (bind 2x6) 14 3-038-085-01 knob (hs), volume 15 3-041-535-01 felt, rx * 16 a-3672-876-a hand main board, complete (id975) * 16 a-3672-897-a hand main board, complete (id976) 17 3-038-084-01 diffuser (hs) 18 3-041-536-01 sheet 19 3-041-547-01 cover (hs), hook ant1001 1-754-103-11 antenna j1001 3-041-208-01 terminal, charge j1002 3-041-208-01 terminal, charge j1003 3-041-210-01 terminal, battery j1004 3-041-210-01 terminal, battery lcd1001 1-803-832-11 lcd module u1003 1-542-260-31 microphone, electret condenser u1005 1-505-593-11 speaker (2.8cm)
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