Sharp TM200 Service Manual - Page 26

CONFIDENTIAL (1) Handset microphone Handset receiver Trouble found by SPST (2) Handset microphone Hands free receiver (1) & (2): No voice is heard. (1): Voice is heard. (2): No voice is heard. (1) & (2): No voice is heard. (3) Hands free microphone Hands free receiver (4) Hands free microphone Handset receiver (1): No voice is heard. (2): Voice is heard. (3)&(4): No voice is heard. (3): Voice is heard. (4): No voice is heard. (3): No voice is heard. (4): Voice is heard. Troubleshooting (based on [3] Troubleshooting) See "Phone" in the section "2. Voice transmission/recording is impossible." See "Hands free kit (monaural headset)" in the section "3. No voice is heard from the earpiece" or "Hands free kit (stereo headset)-Option" in the section "3. No voice is heard from th earpiece." See "Phone" in the section "3. No voice is heard from the earpiece." See "Hands free kit (headset)" in the section "2. Voice transmission/recording is impossible." 4-8-10. Camera check The following appears. 4-8-14. Main display flicker adjustment The following is displayed. PENDING Select a Camera mode from the pull-down menu. Click "Shutter" to check that the camera operates properly. Click "Back to performance check menu" to return to the previous screen. • If a failure occurs, see "10. Pictures cannot be taken." in [3] Troubleshooting. 4-8-11. Memory check Click "S-RAM" and "PSRAM" to see each test result. For "Check Sum", the calculation appears after the SPST communicating dialog box. 4-8-12. LCD test Check that the specified color appears on the main display. • If a failure occurs, see "12. The display does not appear on Main Dis- play." and "13. The display does not appear on External Display (in 65K color mode)." in [3] Troubleshooting. 4-8-13. Temperature adjustment The following appears. Setting temp. indicates the current temperature. The relative temperature is displayed in the text box below. (Only the relative temperature is adjustable.) If displayed Setting temp. value differs from the current temperature, click [b] or [c] to set a correction value in the range of -99 to +99 and click "Save" Check a main display visually within a distance of 20 cm from a fluorescent light, and adjust the value to minimize flicker on the display with the [b] and [c] buttons. Click "Save" and confirm that the main display does not flicker. (Fine adjustment for DC voltage between display electrodes) Enlarged view (A black line appears after each gradation line.) 8-level graduation pattern with alternate black and gradation lines (black and white) 4-8-15. External display contrast adjustment Click the "External display contrast adjustment" button. The following screen appears. Correction value = (Setting temp.)-(current temp.)+(displayed correction value) TM200 1ADJUSTMENTS, PERFORMANCE CHECK, AND FIRMWARE UPGRADE 2 - 22