Samsung SP-C501R Service Manual Download

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Samsung Cordless 900MHz Phone

SERVICE

Wide Phone SP-C501R

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Samsung Electronics Co., Ltd. 11. 2003

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Printed in Korea

Samsung Cordless 900MHz Phone

Table of Contents

1. Service Guidelines

2. Product Specifications

3. How to Check for Trouble

4. Test Mode Procedure

5. Electrical Components List

6. Layout of Components

7. Perspective View and Components List

8. Block Diagram

9. Circuit Diagram

MANUAL

Summary of Contents for SP-C501R

Page 1: ...Korea Samsung Cordless 900MHz Phone Table of Contents 1 Service Guidelines 2 Product Specifications 3 How to Check for Trouble 4 Test Mode Procedure 5 Electrical Components List 6 Layout of Components 7 Perspective View and Components List 8 Block Diagram 9 Circuit Diagram 2 3 4 9 16 21 24 30 33 MANUAL ...

Page 2: ...d stolen Explanations on the Abbreviated Words Used in this Manual Abbreviations AF BPF CO MPU ID CODE IF LD LN LNA MCF PABX PCB PLL RF SAW TCXO Audio Frequency Band Pass Filter Central Office Micro Processor Unit Identification Code Intermediate Frequency Lock Detector Line Engage Disengage Low Noise Amplifier Monolithic Crystal Filter Private Automatic Branch Exchange Printed Circuit Board Phase...

Page 3: ...n measuring the RF Level as it may reduce the measuring error by its low resistance against RF ID numbers may not be changed as it is memorized in the EEPROM of base and remote sets If ID numbers stored in base and remote sets differ from each other then please enroll the remote set in the base set again You must enroll with the same ID Number at this time When placing the remote set on the charge...

Page 4: ...re a ringing sound in the remote set 1 Check the adaptor 2 Check the power circuit U900 LED2 1 Check the Ring Detector circuit surrounding circuit of PC 201 and if the pulse is supplied when the ring is entered in the pin U1 No 30 Diagnosis completion Yes No Yes No Yes Yes A Is the ID setting done correctly When the wireless channel is captured does the dial tone sound and is the call available 1 ...

Page 5: ...om high to low 2 Check to see if the in use LED is normal Yes Yes No When pressing the page button does the ring tone sound 1 Check and see if pin No 11 of CON1 CON2 goes from high to low 3 2 REMOTE SET Connect battery Above 3 6V Diagnosis completion Yes No Is the LCD DISPLAY appearing correctly 1 Then check the power unit 2 Check the RESET circuit and the MPU oscillation section X1 Yes No Is the ...

Page 6: ... 2 Defective contact terminal Troubleshooting Check the voltage of each end Charge and or replace the battery Check the ID setting Check the transmitting receiving data path Remove the cause of the trouble Readjust the PWR adjustable resistance Check the speech IC U500 and surrounding circuits Check the DTMF path Check the ring detecting circuit and surrounding circuits Replace the MIC Check the t...

Page 7: ...by turning the RV402 of PBA after selecting the 400Hz HPF 15KHz LPF for the FILTER of HP8920A 0 0 5dBm Tel line both ends RX Audio Level 1 Same as RX Audio Level in measuring condition 2 Select the DISTORTION FACTOR and read the value Adjusting point is none Less than 5 RX Audio Distortion 1 Change the RF Level to 15dBm under the condition of measuring the RX Audio Level 2 Read the value of Distor...

Page 8: ...ition 2 Set the Distortion Factor and read the value Adjusting point is none Less than 5 RX Audio Level RX Test Mode 1 Convert the HP8920A to the RX Test Mode 2 Set the Exl LOAD R RF GEN and amplitude to 600ohm corresponding channel frequency and 55dBm respectively 3 Set the AF GEN to the modulation factor of 3KHz dev for 1KHz AUDIO 4 Read the value of AC Level after selecting the Filter of HP8920...

Page 9: ...4 5125 904 5375 904 5625 904 5875 904 6125 904 6375 904 6625 904 6875 904 7125 904 7375 904 7625 904 7875 904 8125 904 8375 904 8625 904 8875 904 9125 904 9375 904 9625 904 9875 BASE TX REMOTE RX TABLE BASE TX REMOTE RX 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 814 0125 814 0375 814 0625 814 0875 814 1125 814 1375 814 1625 814 18...

Page 10: ...NAL MMBT2222A NPN 350MW SOT 23 TP 35 300 39 3 0501 000457 Q3 TR SMALL SIGNAL MMBT2222A NPN 350MW SOT 23 TP 35 300 40 3 0501 000457 Q5 TR SMALL SIGNAL MMBT2222A NPN 350MW SOT 23 TP 35 300 41 3 0501 000457 Q9 TR SMALL SIGNAL MMBT2222A NPN 350MW SOT 23 TP 35 300 42 3 0501 000462 Q12 TR SMALL SIGNAL MMBT2907A PNP 350MW SOT 23 TP 50 300 43 3 0501 000462 Q4 TR SMALL SIGNAL MMBT2907A PNP 350MW SOT 23 TP ...

Page 11: ...rt Number Spec 136 3 2203 000440 C5 C CER CHIP 1nF 10 50V X7R TP 1608 137 3 2203 000624 C1 C CER CHIP 0 022NF 2 50V C0G TP 1608 138 3 2203 000783 C8 C CER CHIP 0 33NF 5 50V C0G TP 1608 139 3 2203 000798 C28 C CER CHIP 33nF 10 16V X7R TP 1608 140 3 2203 000888 C23 C CER CHIP 4 7nF 10 50V X7R TP 1608 141 3 2203 000972 C31 C CER CHIP 47nF 10 16V X7R TP 1608 142 3 2203 001052 C6 C CER CHIP 0 56nF 10 5...

Page 12: ...NER ZY13 13V 12 4V 14 1V 2W 222 4 GG92 01443A ASSY PCB AUTO BASE RD SP C501R 223 5 2201 000560 C500 C CERAMIC DISC 0 47NF 20 400V Y5P TP 6 3X3MM 5 224 5 2201 000560 C501 C CERAMIC DISC 0 47NF 20 400V Y5P TP 6 3X3MM 5 225 5 2401 000041 C902 C AL 220uF 20 16V GP TP 10x12 5 5 No Level Part Number Spec 226 5 2401 000042 C405 C AL 100uF 20 16V GP TP 6 3x7 5 227 5 2401 000042 C424 C AL 100uF 20 16V GP T...

Page 13: ...umber Spec 316 5 2203 000189 C407 C CER CHIP 100nF 80 20 25V Y5V TP 1608 317 5 2203 000189 C415 C CER CHIP 100nF 80 20 25V Y5V TP 1608 318 5 2203 000189 C701 C CER CHIP 100nF 80 20 25V Y5V TP 1608 319 5 2203 000189 C704 C CER CHIP 100nF 80 20 25V Y5V TP 1608 320 5 2203 000189 C718 C CER CHIP 100nF 80 20 25V Y5V TP 1608 321 5 2203 000189 C901 C CER CHIP 100nF 80 20 25V Y5V TP 1608 322 5 2203 000189...

Page 14: ...EAL SP R912 CRP 65 0x95 0 ORG 364 2 GG68 00441B MANUAL SP C501R SAMSUNG RUS ENG RUS MOJO PAPER 106MM 174MM 1 0 365 2 GG69 00068A BAG PE BASE VINYL PE T0 06 250X350 SP R915 366 2 GG69 00069A BAG PE PE T0 06 120X210 SP R915 367 2 GG69 00070A BAG PE H S R M VINYL PELD T0 06 100X260 SP RM928 368 2 GG69 00231C BOX CARTON SP C501R SW2 A KOL L588 0 W240 0 H175 0 369 2 GG69 00232C BOX INNER SP C501R ST300...

Page 15: ... 27 Samsung Electronics Co Ltd Service Manual SP C501R 26 Samsung Electronics Co Ltd Service Manual SP C501R 6 2 REMOTE LOGIC TOP 6 3 REMOTE LOGIC BOTTOM ...

Page 16: ... SIDE SCREW TAPTITE PWH 2 5 6 CBF HARNESS 2P CHF HARNESS 11P SCREW TAPTITE PH3 6 BASE MAIN PBA BASE PLATE ANTENNA WHIP RUBBER FOOT CAP BASE LED LANP KEY BASE CALL SCREW TAPTITE PWH 2 6 6 SCREW TAPTITE PH 2 5 8 SCREW TAPTITE PH 3 8 BASE HOUSING PLECE GG61 00262C GG63 00074C 6003 000193 GG39 00119A GG39 00118A 6003 000165 GG92 01400A GG61 00260C GG81 01618A GG73 00035A GG67 00037A GG64 00286A 6003 0...

Page 17: ...TE DIAL SUB REMOTE ILLUMINATING PLATE LCD HOLDER REMOTE BUZZER REMOTE CONTACT REMOTE UPPER SCREW TAPTITE HANDSET HEARING DECO COVER REMOTE BATTERY SCREW TAPTITE ATENNA HERICAL SPONGE HEARING UNIT BATTERY NI MH REMOTE CID DECO GG59 00079D GG64 00283B GG61 00243A GG97 02151D GG59 00072A GG07 00021A GG61 00239A GG59 00071A GG59 00068F 6003 000149 GG59 00078B GG63 00072F 6003 000314 GG41 00027A GG72 0...

Page 18: ...2 Samsung Electronics Co Ltd Service Manual Chapter 8 Block Diagram SP C501R 8 1 RF BLOCK DIAGRAM 8 2 BASE SET BLOCK DIAGRAM MODEM TIP RING MICOM EEPROM SP C501R BASE BLOCK DIAGRAM RING DTMP SPEECH NETWORK POWER Signal path Data path RING DETECTOR RF MODULE ...

Page 19: ...repeated dividing and comparison In the other words when the input phase of PD completely accords PD Output becomes 0 and output resistance becomes the infinity so the 1st local frequency is stabilized as there is no change in the DC Voltage of VCO This is the detailed synthesizing process of 1st received local frequency and transmission frequency is synthesized on the same principle The time take...

Page 20: ...through the X TAL Filter XF101 XF102 It is demodulated through the super heterodyne process by being combined with the QUAD Coil L 103 and outputting the 455KHz after passing the external filter CF151 and being mixed at IC151 internal 2nd Mixer The demodulated signal is supplied to the Speech IC by compensating the signal controlled by the Compressor in the transmitting section through the AK2361 ...

Page 21: ...0dBm The Expander has the characteristic of 1 2 and compensates the signal compressed by the Compressor The signal passing through the RX AFSW is transmitted to the SPK Unit through the buffers AMP3 and AMP4 of AK2361E at this time 38 Samsung Electronics Co Ltd Service Manual SP C501R 9 2 REMOTE SET 9 2 1 RF Circuit This phone is operated in FULL DUPLEX Method that transmits the TX Signal and rece...

Page 22: ...Service Manual SP C501R 40 Samsung Electronics Co Ltd 9 3 BASE MAIN CIRCUIT DIAGRAM ...

Page 23: ...Service Manual SP C501R 39 Samsung Electronics Co Ltd 9 4 REMOTE LOGIC CIRCUIT DIAGRAM ...

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