你也要看看人家是国中对吧

@@ww-km5gt 不要理他，忽略掉這種人

也是.. 😅

現在也有國樂

sorry, I have no idea.

HA! HA! HA!

It is correct to use 2 AA batteries. manual: [Take two size AA 1.5volt dry cells. (preferable alkaline type)]

Thanks for your answere I Tried with eneloop xxx, and duracell alkaline AA... But those batteries are very long... I can't close the door

yes.

What type of battery is it?

Hi, I am not sure, but you can reference the manual. please download from here: support.casio.com/en/manual/manualfile.php?cid=008001029

Yes, you have sitar and harmonium

Hi, If the light in the viewfinder always red instead of yellow, maybe light meter has a problem. Reference description "Fully Automatic Electric-Eye Contro" below: 1. Looking through the viewfinder at your subject, push the shutter release button down slightly to determine the light level and picture taking mode. A. if the green lamp in the upper left corner of the viewfinder lights up and then goes out as you continue to push the shutter release, light is adequate for normal hand. held auto exposure without flash, and you can proceed to take the picture as soon as you have focused and composed your subject. B. If the green lamp does not go out but changes to red as you continue to depress the shutter release button, a shutter speed slower than 1/30 sec, is indicated, and use of a tripod is recommended if you are not using flash. Your Himatic E will continue to make accurate auto exposures down to 2 full seconds without flash. Adequate attention should, of course, be paid to subject movement at slow shutter speeds. It is important to remember, at these slow shutter speeds, that you MUST HOLD THE SHUTTER RELEASE BUTTON DOWN UNTIL THE RED LAMP GOES OUT. If it is inconvenient to look into the viewfinder, as under certain conditions when using a tripod, instead watch the battery check lamp, which lights and goes out in parallel with the viewfinder's EE indicator lamp, and keeps the shutter button or cable release plunger depressed until it goes out. CAUTION For normal EE exposure, be sure the flash selector is set at AUTO. Never set it at MANUAL when you are not using flash. Hope it helps you.

You can simply depress the shutter release button slightly to check the condition of the batteries.

The environment for recording movies is quite noisy. I am not sure if the clicking sound refers to the sound of pressing the keys. In the impression, pressing the keys is not a knocking sound.

Yes

Sometimes the clicking sound is because of your nails

When there is no battery, the shutter cannot be fired, advance lever will get stuck, can only move a small margin until you release the shutter.

What type of battery are you running in this camera?

PX640(1.35V)

@@binheng where can you buy these?

Please search "PX640 Battery Converter Adapter", will find very lot of on eBay.