Manual for SP-C501R

Manual for SP-C501R

Brand: SAMSUNG

Category: MOBILE PHONE

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 8:40 p.m.

Manual Publish Date: 2003-11-01

Warranty Information

None

  • Service Guidelines:
    • Adjust remote set only in a SHIELD ROOM. Use ceramic adjusting tool.
    • Be careful not to damage the PCB when removing modules.
    • Use correct screwdriver size for small screws.
    • Use thick and flexible wire for RF Level measurement.
    • ID numbers are memorized in EEPROM; re-enroll if they differ.
    • Clean charger contacts if remote set is not charging.
    • Do not adjust parts unless modified.
    • Use authorized adjusting tools for RF Module.
  • Product Specifications:
    • Frequency Range: 814.0125MHz~814.9875MHz / 904.0125MHz ~ 904.9875MHz
    • Channels: 40
    • Channel Space: 25KHz
    • Output Power: Less than 10mW
    • Modulation Method: FM
    • Talk Times: More than 3 hours
    • Standby Times: More than 20 hours
    • Operating Temperature: 0℃~+40℃
    • Operating Humidity: 5%~90%

Troubleshooting and error codes

Troubles Causes Troubleshooting
Not operable at all 1. Defective power source (base)
2. Battery is discharged (Remote) 		• Check the voltage of each end.
Charge and/or replace the battery.
Channel is not captured 1. ID discord
2. Defective transmitting/receiving data 		Check the ID setting.
Check the transmitting/receiving data path
Communication distance is too short 1. Antenna is open
2. Defective transmitting power adjustment 		• Remove the cause of the trouble.
Readjust the PWR adjustable resistance
Call path is not formed Defective SPEECH IC(U500) Check the speech IC (U500) and surrounding circuits
Dialing is not available Defective SPEECH IC(U500)
Defective ring detector Circuit (PC201) 		• Check the DTMF path
Check the ring detecting circuit and surrounding circuits
Ring tone does not sound 1. Defective MIC
2. Defective transmitting path 		Replace the MIC
• Check the transmitting path
Transmitting is not normal (Remote set) 1. Defective receiving unit
2. Defective receiving path 		Replace the receiving unit
• Check the receiving path
Receiving is not normal (Remote set) 1. Defective battery
2. Defective contact terminal 		Replace the battery
• Check the contact terminal
Is not chargeable 1. Defective power source (base)
2. Battery is discharged (Remote) 		• Check the voltage of each end.
Charge and/or replace the battery.
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