radio MAZDA MX-5 1994 User Guide

T AUDIO Compact disc (CD) player CD slot P Disc set light Repeat button Random-play button I Upldown button (rewindtfast forward lllustration r AUTO M SCAN J Operation Insert CD, player automatically pulls in CD and begins play Set light turns on when CD is inserted, turns off when CD is ejected Press RPT button while tune is playing to play it again after it finishes Press button again to cancel repeat operation and resume normal play Press RAN button to play tunes on disc in random order; RANDOM ap- pears on display Press again to cancel random operation and resume normal play Press SCAN button to play beginning of tunes one by one (10 seconds each) Press button during play to start scanning from next tune Press button during scanning to play current tune Scanning is canceled automatically when all programs in disc have been scanned Press button to stop play; press again to start To start CD while in radio or tape mode, press button with CD inserted in player Press button to eject CD 1. Press button for more than 1.5 seconds to rewind or fast forward; play will begin at point where button is released 2. Press button for 1.5 seconds or less to advance or reverse song selec- tion before or during play Press ( A ) button to advance to beginning of next song and begin Play Repeat procedure to advance one song at a time Press ( V) button once to return to beginning of current song Press button again to move to beginning of previous song 35UOTX-05: Gartner Banana

AUDIO Clock The clock can be adjusted during radio, tape, or CD play. I Name I Illustration Clock button (clock display) ALC (Auto level controller) Name 1 Illustration ALCJbodysonic volume control knob I Mute button Roof mode button I Stereo-wide button Operation Press button to display present radio frequency or operation mode If power supply to unit is broken (burnt fuse or disconnected battery), clock setup will be canceled When clock button is pushed for 2 seconds, clock display flashes. At this point, press H button to advance hours and M button to advance minutes Press clock button again to return to normal display If clock button is pressed again while clock display is flashing and time has not been adjusted (that is, H and M buttons have not been pressed), min- utes will be set at :00. If time before adjustment showed 30-59 minutes, time will be set at next hour For example, Operation Press knob to turn ALC on or off 1. At ON, ALC adjusts sound corresponding to vehicle speed; ALC indica- tor light turns on 2. To adjust seat vibration, turn knob to right or left Right -t Seat vibration increases Left + Seat vibration decreases Turn knob right or left to transfer sound Right -+ Door speakers Left -t Headrest speakers Press button to lower overall volume by 10dB Press button to switch between roof-open mode and roof-closed mode; sound quality is adjusted depending on whether roof is opened or closed Press button to turn stereo-wide function on or off At ON, stereo-wide mode improves sound quality Gartner Banana

AUDIO T I Symptom: Poor sound quality or noise (Radio) 1 ,, Possible cause Damaged cassette tape Damaged speaker Damaged antenna Damaged audio unit Open circuit in wiring harness Poor connection of connector 45UOTX-245 Step 1 1. Tune to the strongest AM station using the automatic memory function. 2. If the automatic memory function does not operate, go to Step 4. 3. Compare sound quality with that of another vehicle that has the same type audio unit. 4. If the sound quality is inferior to the other unit, go to Step n L. 5. If the sound quality is the same as the other unit, the sys- tem is OK. Step 2 1. Play a known good cassette tape, and compare the sound quality with another vehicle that has the same type audio unit. 2. If the sound quality is inferior to the other unit, the mal- function may be in the speaker circuit. Go to Step 3. 3. If the sound quality is same as the other unit, the mal- function may be in the antenna circuit. Go to Step 4. Step 3 1. Check for damage to the speakers. 2. Check for proper connection of speaker connectors. 3. Disconnect the speaker connectors, and measure resis- tance of each speaker. Resistance: 452 4. If a speaker has incorrect resistance or is damaged, re- place it. 5. If the speakers are OK, replace the audio unit. Step 4 1. Check that there is no continuity (infinite ohms) between the mast antenna and a body ground. 2. If there is continuity, replace the antenna. 3. If there is no continuity, go to Step 5. Gartner Banana

T AUDIO Symptom: Cassette tape will not load Possible cause Damaged cassette tape Damaged audio unit Step 1 1. Check if a known good cassette tape will load. 2. If the tape loads, the previous tape is defective. The sys- tem is OK. 3. If the tape will not load, go to Step 2. I I 9MUOTX-384 s=Jh Step 2 1. Check if radio operation is OK. 2. If radio operation is OK, replace the audio unit. 3. If the radio do not operate, there is a defect in the power supply circuit. Gartner Banana

T AUDIO Symptom: Compact disc will not load Possible cause Damaged compact disc Ll' Damaged CD player Note The CD player automatically ejects dirty or damaged discs. Step 1 1. Check if a known good compact disc will load. 2. If the compact disc will load, the system is OK. 3. If the compact disc will not load, go to Step 2. Step 2 1. Check if the radio operates normally. 2. If the radio operates normally, replace the audio unit. 3. If the radio does not operate there is defective in the power supply circuit. I I 35UOTX-074 Symptom: Compact disc skips Possible cause Damaged compact disc Damaged CD player Remedy 1. Check with the driver if skipping occurs often. 2. If it occurs often, check that the audio unit is properly installed. (1) If the audio unit is not installed properly, remedy it. (2) If the audio unit is installed properly, replace the audio unit. Gartner Banana

AUDIO I Symptom: No sound can be heard I Possible cause Burnt CIGAR fuse Burnt ROOM fuse Damaged audio unit ROOM 1 OA 35UOTX-077 Open circuit in wiring harness Poor connection of connector Damaged DIN cord Step 1 Check the CIGAR 15A fuse and ROOM 1 OA fuse in the fuse block. I Fuse 1 Action I Step 2 1. Remove the audio unit. (Refer to page T-145.) 2. Check the connectors and the DIN cord of the audio unit. 3. If a connection is poor or loose, repair or replace it. 4. If the connectors are OK, go to Step 3. Burnt OK Step 3 1. Turn the ignition switch to ACC position. 2. Measure voltage at terminals A (UB) and C (UR) of the AM-FM radio unit connector (1 2-pin). Replace fuse after checking and repairing wiring harness Go to Step 2 B+: Battery positive voltage Terminal 1 Voltfe Action Measure terminal C (VR) voltage Repair wiring harness (CIGAR fuse - AMeFM radio unit) Go to Step 4 Repair wiring harness (ROOM fuse - AM-FM radio unit) 1 Step 4 1. Check for continuity between body of the AM-FM radio unit and ground. I No Repair wiring harness (AM-FM radio unit - GND) 1 Continuity Yes Action Replace audio unit Gartner Banana

AUDIO T Step 2 1. Remove the door speaker (woofer). (Refer to page T-146.) 2. Make sure the speaker is properly connected. 3, If the connections are OK, go to Step 3. 4. If a connection is poor, repair it. Step 3 1. Disconnect the connector from the suspected faulty door speaker. 2. Measure the resistance between the terminals of the door speaker (woofer). Step 4 1. Remove the audio unit. (Refer to page T-145.) 2. Make sure the audio unit connectors are properly con- Resistance 4Q Other nected. 3. If the connections are OK. ao to Step 5. Action Go to Step 4 Replace speaker 4. If a connection is poor, rep& it. 1. 6heck for continuity between the AM-FM radio unit con- nector (1 2-pin) and the door speaker (woofer) connec- tor (2-pin). Radio r 'Laker I connector I connector Right door 2. If correct, replace the AM-FM radio unit. 3. If not as specified, repair the wiring. Left door ~ ~ I M ((VV 12-pin tr B (WG) 2-pin N (L) 12-pin +t A (RMI) 2-pin Yes Yes K (RIG) 12-pin tr B (RIG) 2-pin L (WW) 12-pin o A (RNV) 2-pin Yes Yes Gartner Banana

AUDIO T Step 10 1. Check for continuity between the network connector (4-pin) and the AM-FM radio unit connecter (12-pin). Network I 'peaker I connector 'Waker 1 Continuity I I connector I I 35UOTX-093 2. If correct, redace the network. Right door Left door 3. If not as specified, repair the wiring. Step 11 1. Remove the headrest speaker. (Refer to page T-147.) 2. Make sure the speaker is properly connected. 3. If the connections are OK, go to Step 12. 4. If a connection is poor, repair it. I A (WG) 4-pin t, M (VY) 12-pin B (W) 4-pin ++ N (L) 12-pin A (WG) *in ++ K (WG) 1 2-ph B (WW) 4-pin tt L (WW) 1 P-pin Step 12 1. Disconnect the headrest speaker connector. 2. Measure the resistance between the terminals of the headrest speaker connector. Yes Yes Yes Yes Resistance Actlon 8Q Go to Step 13 Step 13 1. Remove the audio unit. (Refer to page T-145.) 2. Make sure the audio unit connector and DIN cord are properly connected. 3. If the connections are OK, go to Step 14. 4. If a connection is poor, repair it. Gartner Banana

T AUDIO Step 14 1. Turn the ignition switch to ACC. 2. Measure the voltage at terminal C (UB) of the auto level controller connector (&pin). .J B+: Battery positive voltage I voltage Action Step 15 1. Disconnect the auto level controller DIN cord (&pin). 2. Measure the voltage at terminal 2 of the DIN cord. B+ Other Go to Step 15 Repair wiring harness CIGAR fuse - Auto level controller B+: Battery positive voltage Step 16 1. Check for continuity between the auto level controller connector (&pin) and the headrest speaker and body- sonic connector (&pin). Voltage B+ Other Action Go to Step 16 Replace AMFM radio unit 2. If correct, replace the auto level controller. 3. If not as specified, repair the wiring. I Speaker Right headrest Left headrest ALC I 'peaker connector connector H (VW) 8-pin +t C (LMI) 6-pin B (UO) &pin ++ D (LO) 6-pin F (RIL) &pin o B (RIL) Gpin A (W) &pin o A (W) 6-pin continuity Yes Yes Yes Yes .- / Gartner Banana

AUDIO T Symptom: Bodysonic will not play Possible cause Damaged bodysonic Damaged audio unit Damaged DIN cord Open or short circuit in wiring harness Poor connection of connector Open or short circuit in DIN cord 45UOTX-269 Step 1 1. Remove the audio unit. (Refer to page T-145.) 2. Make sure the audio unit connector and DIN cord are properly connected. 3. If the connections are OK, go to Step 2. 4. If a connection is poor, repair it. Step 2 1. TI~ the ignition switch to ACC. .. .-... 2. Measure fhe voltage at terminal C (UB) of the auto level controller connector (8-pin). B+: Battery positive voltage Step 3 1. Disconnect the auto level controller DIN cord (6-pin). Voltage B+ Other 2. Measure the voltage at terminal 2 of the DIN cord. Action Go to Ste~ 3 J Repair wiring harness (CIGAR fuse - Auto level controller) B+: Batterv ~ositlve voltage I Other I Replace AMaFM radio unit . . - Step 4 1. Make sure headrest speaker and bodysonic connectors are properly connected. 2. If the connections are OK, go to Step 5. 3. If a connection is poor, repair it. Voltage B+ Action Go to Stea 4 Gartner Banana