Brand: SAMSUNG
Category: TV
Document Type: Manual
Language: EN
Manual for K15A
Uploaded: Nov. 21, 2025, 7:51 p.m.
Manual Publish Date: 1999-09-01
Warranty Information
Consult manufacturer for warranty details.
Follow safety, servicing, and ESD precautions to prevent damage and hazards. Ensure protective devices are replaced and nonmetallic covers are restored. Do not insert fingers into cabinet openings. Perform leakage current hot and cold checks, adhering to specified limits. Replace the picture tube with the same type and reinstall shields for X-ray protection. Measure high voltage whenever servicing high-voltage circuits and reconfirm X-ray protection circuit operation. Handle picture tubes with care, wearing shatterproof goggles and never by the neck. Replace components with identical safety-related characteristics.
Troubleshooting and error codes
| Condition | Symptom | Check Point | Expected Result | Abnormal Action | Normal Action | Abnormal Result | Normal Result | Action |
|---|---|---|---|---|---|---|---|---|
| No Power | Check LED when AC cord is plugged. | OFF | Normal | Check Fuse. Abnormal: Check and Replace D807-D810 | ON | Check IC802. Abnormal: Check/Replace IC802, R812, D856. | Check IC801* Pin 1 Oscillation. Abnormal: Check IC801* Pin 3 B+. Abnormal (0-15V): Check/Replace D806, Q401, Q801, D802, D814* | Normal (15-20V) |
| Check IC801* Pin 4 Voltage. Abnormal (0V): Check/Replace PC802, DZ807 | Normal (0.5 - 3V) | Check/Replace DZ802, DZ803, D806 | ||||||
| No Sound | Check Connector CN601 and CN701. Abnormal: Check CN601 and CN701 Connector Soldering and A/V PCB. | Normal | Check Waveform of IC601 Pin 1. Normal | Check Waveform of IC201 Pin 52. Normal | Check Waveform of IC201 Pin 1. Abnormal | Volume Up. NG: Check/Replace IC201. | Ok | Check SIF (L201). |
| Ok | Check Voltage of IC601 and IC602 Pin 5. Abnormal: Check Power 12V Line Voltage. | Normal (approx. 12V) | Replace IC601 and IC602. | |||||
| Single Horizontal Line Appears | Check 24V-C Voltage. Abnormal | Check Waveform of IC201 Pins 22,24. Normal | Check Whether a horizontal line appears in the service mode. NG: Check/Replace IC201. | Normal | Ok | Normal (24V) | Abnormal | Check FBT Pin 2 (24V) Oscillation. NG: Check/Replace FBT. |
| Ok | Normal | Check R409 Open. Open: Check/Replace R409. | Ok | |||||
| No Signal | Check each tuner terminal voltage. Abnormal: Check voltage line. | Normal | Check tuner SCL,SDA waveform. Normal | Check Micom IC901. Normal | Check tuner IF terminal waveform. Abnormal: Replace tuner. | Normal | Check IC201 Pins 7,8 waveform. Normal | Check whether AGC and AFT adjustment are normal in the service mode. Normal |
| Abnormal | Readjust AGC and AFT. | Normal | ||||||
| Check IC201 Pin 41 waveform level. Normal (2Vp-p) | Check IC201 Pin 43 waveform level. Normal (1Vp-p) | Check IC201 Pins 19,20, 21 waveform level. Normal (3-5Vp-p) | ||||||
| Check CRT PCB (180V) and heater Voltages. | Check IC201 Pin 47 waveform level. Normal (2Vp-p) | Check IC201 Pin 37 waveform level. Normal (1Vp-p) |