Receiving calls ..............6 OPERATION. REPLACE THESE COMPONENTS WITH Speed dialing ..............6 SONY PARTS WHOSE PART NUMBERS APPEAR AS Switching the phones during a call ......... 7 SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- Talking between the phones (Intercom) ......7 LISHED BY SONY.
http://www.xiaoyu163.com SECTION 1 SERVICING NOTES 3 7 63 1515 0 CABLE FASTENING METHOD • TDD noise may be generated in the intercom or handset speech depending on how the cables are fastened, and therefore fasten the cables as shown below. 1 Erect the cabinet (upper) 90 degrees.
http://www.xiaoyu163.com SECTION 2 This section is extracted from instruction manual. GENERAL 3 7 63 1515 0 L 13942296513 u163 – 4 – http://www.xiaoyu163.com...
http://www.xiaoyu163.com SECTION 3 DISASSEMBLY 3 7 63 1515 0 Note: Follow the disassembly procedure in the numerical order given. • HANDSET REAR CABINET 2 two screws (BTP 2.6 × 10) 1 Remove the battery case lid to direction of the arrow A . L 13942296513 3 two claws 4 claw...
Page 10
http://www.xiaoyu163.com 3 7 63 1515 0 HAND MAIN BOARD 1 connector 2 four screws 3 screw (CN401) (P3 × 16) (BTP2.6 × 8) 1 connector (CN302) 3 three screws (BTP2.6 × 8) 4 Removal of the HAND MAIN board direction of the arrow A . L 13942296513 u163 –...
Page 11
http://www.xiaoyu163.com 3 7 63 1515 0 • BASESET BASESET (UPPER) ASS’Y 3 baseset (upper) ass’y 2 two claws 1 two screws 1 two screws (P3 × 10) (P3 × 10) L 13942296513 BASE MAIN BOARD 5 BASE MAIN board 1 four screws (BTP2.6 ×...
http://www.xiaoyu163.com SECTION 4 3 7 63 1515 0 900 MHz SYSTEM OPERATION 4-1. Access method 4-2. Protocol 1. General 1. Transfer format & rate This system realizes the TX/RX superframe by TDD system. The The transfer format & rate of our system is as follows; relation of master/slave dose not decide identification regarding the protocol between BS and HS, but the initiated side is the mas- Table 4-1.
Page 13
http://www.xiaoyu163.com 3 7 63 1515 0 4. Stand-by Mode Operation (1) HS When the HS is the stand-by mode (sleep mode), the HS do the intermittent operation for power save, because the HS is the battery operation. This process of stand-by mode operation is as follows. 10 sec 10 sec Heart-Beat...
Page 14
http://www.xiaoyu163.com 3 7 63 1515 0 5. Link Establishment Master Slave According to the following Fig. 4-1, the requested side for link establishment is the master. The system have to exchange the A-Frame for link establishment, and each system ID should be the same ID, and then the system A-Frame link is established.
http://www.xiaoyu163.com SECTION 5 TEST MODE 3 7 63 1515 0 5-1. BASE UNIT E) Loopback test group 1 [Start-up] Command Mode/Operation [DIAL MODE] 1. Set the switch to the P (PULSE) side. 3-1-# CODEC Forward Loopback (L1) [INTERCOM] 2. Keeping the button pressed, turn the power on.
http://www.xiaoyu163.com 3 7 63 1515 0 5-2. HANDSET G) MMI test group [Start-up] Command Mode/Operation [TALK] 1. With the power supplied, press , and keys simul- 5-1-# Key test. taneously, and the Test Mode will start. • Press the keys successively in the following 2.
http://www.xiaoyu163.com 3 7 63 1515 0 5-3. RF TESTING • Transmission Wave: This test is for checking the RF system without disassembling the –16.00 dBm ATTEN 10 dB 903.392 MHz 0 dBm 10 dB/ set in servicing. Perform measurement using the spectrum ana- lyzer and jig antenna.
Page 18
http://www.xiaoyu163.com 3 7 63 1515 0 • Measurement: Measure peak level by Spectrum analyzer. 903.587 MHz –5 .0 dBm AT 10 dB –3.67 dBm PEAK –6 –1 –4 –7 18dB –3 –2 PLOTTER ADRS –8 –9 WA SB SC FC CORR Fig.
http://www.xiaoyu163.com SECTION 6 ELECTRICAL ADJUSTMENTS 3 7 63 1515 0 6-1. BASE UNIT SECTION 3. Checking TX Output Setting: • Make the set in Test mode (see page 15) peak power meter 1. Checking RX I&Q Output Level Setting: ANTENNA TERMINAL –...
http://www.xiaoyu163.com 3 7 63 1515 0 6-2. HANDSET SECTION 3. Checking TX output Setting: • Make the set in Test mode (see page 16) peak power meter 1. Checking RX I&Q Output Level Setting: ANTENNA TERMINAL – oscilloscope level meter TP520: RXIP Procedure: TP521: RXIN...
Page 21
http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 Adjustment Location: [HAND MAIN board] (Side A ) ANTENNA TERMINAL ANTENNA TERMINAL [BASE MAIN board] : Checking RX I&Q Output level : Checking RX I&Q Output level SW951 frequency counter : Checking TX Center Frequency (Side B) frequency counter : Checking TX Center Frequency P ˜...
http://www.xiaoyu163.com 7-13. IC PIN FUNCTION DESCRIPTION 3 7 6 3 1 5 1 5 0 • BASE MAIN BOARD IC751 C7311-11 (ASIC) Pin No. Pin Name Function Pin No. Pin Name Function RXQN Receive data (Q negative) input from the RF unit KEY-OUT5 Key output terminal Not used (open) —...
Page 33
http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Function XTALI Main system clock input terminal (9.6 MHz) XTALO Main system clock output terminal (9.6 MHz) VDDP — Power supply terminal (+5V) (for pad) VSSP — Ground terminal (for pad) L 13942296513 u163 –...
Page 34
http://www.xiaoyu163.com 3 7 63 1515 0 • HAND MAIN BOARD IC501 C7311-11 (ASIC) Pin No. Pin Name Function KEYPADB5 Key output terminal Not used (open) Selection input of the model Not used (open) 3, 4 D1, D2 Not used (open) Selection input of the test mode Not used (open) Not used (open) Microphone gain control input terminal (fixed at “L”...
Page 35
http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Function RXQP Receive data (Q positive) input from the RF unit RXQN Receive data (Q negative) input from the RF unit — Not used (open) IBIAS Analog bias input terminal AGND —...
Page 36
http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Function XTALI Main system clock input terminal (9.6 MHz) XTALO Main system clock output terminal (9.6 MHz) VDDP — Power supply terminal (+5V) (for pad) VSSP — Ground terminal (for pad) L 13942296513 u163 –...
Page 37
http://www.xiaoyu163.com 3 7 63 1515 0 • Waveforms – HAND MAIN Board – – BASE MAIN Board – 1 IC751 (¶ (XTALI) 1 IC501 (¶ (XTALI) 4 Vp-p 2.9 Vp-p 104 ns 104 ns L 13942296513 u163 – 49 – http://www.xiaoyu163.com...
http://www.xiaoyu163.com SECTION 8 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • Items marked “*” are not stocked since they • -XX and -X mean standardized parts, so they may have some difference from the original are seldom required for routine service. Some one.
Page 40
http://www.xiaoyu163.com 3 7 63 1515 0 (2) BASESET SECTION SP101 ANT901 L 13942296513 RFU901 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 51 1-671-562-11 BASE KEY BOARD * 63 A-3622-208-A BASE MAIN BOARD, COMPLETE 1-771-364-11 SWITCH, RUBBER KEY (BASE) 3-029-168-01 SHEET (COPPER LEAF.
Page 41
http://www.xiaoyu163.com SECTION 9 BASE KEY BASE MAIN 3 7 63 1515 0 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark ! or dotted line with mark parts list may be different from the parts speci- are seldom required for routine service.
Need help?
Do you have a question about the SPP-SS955 and is the answer not in the manual?
Questions and answers