Appendix 117AppendixTroubleshooting chartThe indication “Er91-13F” appears in thedisplay window.CauseTroubleshootingYou can use this chart to establish possible causes ofan apparent problem; always double-check beforesending the unit for repair. If a problem persists,contact your Sony dealer.Symptoms RemedyThe unit does not power on when youturn the POWER switch on.There is no battery pack loaded. Load a battery pack (page 44).The battery pack has reached the end ofits usable life.The AC power adaptor is not connected,or it is not turned on.Replace the battery pack with a fullycharged one (page 44).Connect the AC power adaptor (page45).The POWER switch of the unit is turnedoff.The tape transport does not operatewhen you press either VTR button.Turn the POWER switch on (page 13).The unit has reached the end of tape. Rewind the tape, or load a new cassette(page 51).The cassette is set record-inhibited. Either load a new cassette, or releasethe record-inhibit (page 50).An incorrect type of DVCAM or DVcassette is loaded.(The indication blinks.)Load a correct type of DV or DVCAMcassette (page 49).The power supply cuts while operating.The cassette holder is not solidly closedafter the cassette is inserted.Press on the “PUSH” indication to closethe holder solidly (page 51).The battery pack is exhausted. Replace the battery pack with a fullycharged one (page 44).The battery goes dead very quickly. The operating temperature is very low.The battery pack is inadequatelycharged.Use a BP-L60/L60A or BP-L90/L90A(page 44).Recharge the battery pack (page 44).It is not possible to eject the cassette.The POWER switch is turned off.The battery pack is exhausted. Replace the battery pack with a fullycharged one (page 44).Press on the “PUSH” indication to closethe holder solidly and then press theEJECT button (page 51).The playback sound does not hear.The video heads are dirty.The playback picture quality is poor.The playback picture does not appear.Clean the video heads using a DVM-12CL Cleaning Cassette (page 114).All controls except the EJECT button aredisabled.There is condensation on the headdrum.Remove the cassette, power off, andwait until the condensation hasevaporated (page 116).Audio recording is not possible.Adjust the setting of the AUDIO LEVELknob (page 11).The recorded sound is distorted. The audio level is too high.The unit has reached the end of tape. Either rewind the tape, or load a newcassette (page 51).Adjust the setting of the AUDIO LEVEL(CH-1/CH-2) knobs, and record again(page 15).The recorded sound has a high noiselevel.The audio level is too low. Adjust the setting of the AUDIO LEVEL(CH-1/CH-2) knobs, and record again(page 15).The unit has failed in loading or savingthe cassette memory data.Load a new cassette (page 51).The cassette is automatically ejected.The tape transport does not operatewhen you press any tape transportbutton.Turn the POWER switch on. (page 13)The cassette holder is not solidly closedafter the cassette is inserted.Troubleshooting(Continued)The AUDIO LEVEL knob on the front isset to the minimum level.The AUDIO LEVEL (CH-1/CH-2) knobsare set to the minimum level.Adjust the setting of the AUDIO LEVEL(CH-1/CH-2) knobs (page 15).An incorrect type of cassette is loaded. Load a correct type of cassette (page49).