I can find the convertible top release both electronic and manual but can something be stuck? I assume the rear deck moves to receive top and carrige below deck. I am looking to pick up this car a 1994 corvette convertible

Question edited to add maker.
Question moved to model category.

It appears to be a known issue. Videos that may help.

https://www.google.com/search?q=1997+Jaguar+XK8+convertible+top+will+not+raise

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look for a blown fuse or a bad relay or bad sensor. possibly the mechanism is in a mechanical bind .. i would go to youtube and search the issue to see if it's a common problem and if so there will be videos on fixing it ..

Manually Moving the Folding Top from the Down Position
Important: Allow the system a minimum of four minutes to bleed down pressure after the last cycle.
Manually release the folding top cover latch using the emergency release cable.
Raise the folding top stowage cover.
Manually raise the folding top, holding the 5 bow up.
Manually lower and latch the folding top stowage cover.
Manually unfold the top and latch per normal procedure.

Manually Moving the Folding Top from the Up Position
Important: Allow the system a minimum of four minutes to bleed down pressure after the last cycle.
Manually release header latch per normal operation.
Manually lift front of roof off of the header and raise the #5 bow at the same time.
Manually release the Folding Top Cover latch using the emergency release cable.
Fold the roof down into the well.
Manually close and latch the folding top stowage cover.

Power Folding Top System Components
The power folding top system consists of the following components:
• Folding top control (FTC) module
• Body control module (BCM)
• Folding top control switch
• Serial data communication
• Folding top cover latch actuator
• Folding top cover pull down actuator
• Folding top pump motor with valve manifold
• Position switches and limit switches:
- Pin receiver switch
- Luggage barrier switch
- Folding top cover open switch
- Top open switch
- Top closed switch
- 5 bow raised switch
- 5 bow lowered switch
• Tonneau release relay
• TONNEAU PULL DOWN ACTUATOR Fuse 20 A
• TONNEAU RELEASE Fuse 10 A
• BATT 2 Fuse 40 A
• REAR FOG/ALDL TOP SW Fuse 10 A
• Folding top mechanical components:
- Folding top
- Folding top cover
- Folding top valve 1
- Folding top valve 2
- Folding top valve 3
- Hydraulic lines and cylinders

Folding Top Cover Latch Actuator
The power folding top system includes a folding top cover that is powered open and close by a hydraulic system that is controlled by the FTC module. A power unlatch motor is used to unlatch the folding top cover before the folding top control (FTC) module powers the top cover open. The folding top cover unlatching is requested by the FTC module via class 2 message, but is executed by the body control module (BCM). When requested, the BCM applies battery voltage through the folding top cover release relay control circuit to the tonneau release relay. The relay is energized and battery voltage is applied through the folding top cover release control circuit to the latch actuator. The actuator is energized and the latch releases the folding top cover.

The electronics on this are very complex ,

System Operation
Before any movement of the power folding top is allowed, the folding top control (FTC) module must be aware of the following conditions:
• Unlatch the header. The FTC module reads the pin receiver switch is Inactive.
• The windows must be normalized. Refer to Power Window Reinitialization.
• The ignition must be placed in Accessory or RUN.
• The transmission must be placed in PARK, or with manual transmission, the park brake must be applied.
• Trunk status must not be ajar.
• The luggage barrier must be in place.
• The pump motor temperature must be within the operating range.

After the last cycle of power folding top operation, allow the hydraulic system a minimum of 4 minutes to bleed down before attempting manual operation of the top.
Your best bet take and have it checked for DTC'S - diagnostic trouble codes .
DTC B3666 Rear Tonneau Position Error
DTC B3667 Tonneau Release Circuit
DTC B1011
DTC B1291
DTC B1420
DTC B3602
DTC B3666
DTC B3667
DTC B3670
DTC B3971

What make ,model an year vehicle ? Could be a sensor or a control module . Some of these convertibles are very complex , could set DTC'S diagnostic trouble codes .
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The hydraulic lines and the cylinders

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GMLAN communication to the Body Control Module (BCM)

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Open/Close request circuit to the driver and passenger window motors

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Power and Grounds

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Folding Top Main Power Fuse 30A

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Folding Top Logic Power Fuse 20A

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Ground G301 for the FTC module and G305

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Folding Top Open/Close Switch (S15 and S16)

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Rear Compartment Limit Switches

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Rear Compartment Lid Release Switch (S3 and S4)

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Rear Compartment Lid Release Switch-Front Hinge-Left (S11 and S12)

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Rear Compartment Lid Release Switch-Front Hinge-Right (S9 and S10)

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Folding Top Front Location Pin Guide-Left (S17 and S18)

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Rear Compartment Lid Release Switch-Left (S19A)

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Rear Compartment Lid Release Switch-Right (S19B)

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Rear Compartment Partition Position Switch (S20)

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Folding Top Front Location Pin Position Switch (S13)

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Folding Top Front Latch Actuator Position Switch (S14)

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Hall Effect Sensors

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Folding Top Header Latch Cylinder Sensor (S1)

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Rear Compartment Cylinder Extended Sensor (S2)

DTC B367F 58: Roof Stowed Ready to Latch Sensor Circuit incorrect reaction after event

DTC B367F 59: Roof Stowed Ready to Latch Sensor Circuit circuit/component protection time out
DTC B367B 58: Deck Lid Anti-Rotation Latched Sensor Circuit incorrect reaction after event

DTC B367B 59: Deck Lid Anti-Rotation Latched Sensor Circuit circuit/component protection time out
Your best bet is probably to take your vehicle to a qualified repair shop.

I have a 1991 convertible Vette and I had a simular problem. The top would release from the deck, but only the driver's side latch would release on the deck lid. What I discovered is a small bracket that is held on by a retaining washer clip and the clip had come off. Went to the hardware store and bought a new one for $ .50 and remounted the bracket. The manual release for the deck is located behind each seat, pull towards the center of the car.

you need to turn the allen screw to work the front latch release's and that will unlatch the front.also as you turn the allen you will notice the front of the top pull back slightly,after this allen has been turned un-till it stops (this may take a while) you can then start to move the top manually.pull the front of the top back,then lift the rear section,then you will be able to lift the rear lid move top into the stowed area

If you reach behind the headrest on the driver's side, you should feel a handle. Pull that handle to release pins from the rear deck lid. Then there is a small yellow button under the deck lid or you can use the slide switch located on either door to release the deck lid. Next you must unlatch the front by pulling on the handles located above each of the visors. Then, with the deck lid open, fold the top down into the cargo area and close the deck lid.
Hope this helps.

This has happened to my wife's 2004 A4 Convertible 2x's. I had to read the owner's manual several times to get the job done correctly (pages in the high 70's to low 80's) ...the following is offered from memory: The handle/tool needed to accomplish the task 'manually' is located in the fuse box on the LEFT SIDE of the dashboard. A small flat blade screwdriver will enable you to pry open the fuse cover & gain access to the handle/tool. Slight twist the tool and it comes out easily. Tool is a "T" shaped handle. Once you have the handle/tool IN HAND, simply turn the RED part (only) on the handle until it 'locks' in an open position. Leaves a small space on the handle. Can't recall if you go clockwise or counterclockwise, but it will be evident. Now...move both front seats forward and tilt them to gain access to rear seat. Remove the ski boot cover in middle of the rear seat and put aside. Then, 'click' the interior boot cover panel down to gain access to a 'hole' (about size of a 50 cent piece) in the top of the boot space. This hole allows you to insert (upward) the above mentioned tool into a lock/unlock mechanism in the rear deck just forward of the trunk. The tool needs to be jiggled to go 'all the way' in...you will sense that. Once in, TURN the RED part of the handle to "LOCK" the handle into the mechanism. The tool will hang down by itself. My approach is to 'store' the roof in the open convertible position first. The front portion of the roof should be partially forward as that appears to 'release' a lever within the roof's up/down mechanism to allow you to raise the rear window portion. Thus, lift (with that friend) the rear window portion up and forward (takes some effort). The roof now has a kind of 'clamshell' appearance front & rear. The front may even flop forward but tht's OK. This step exposes the rear deck. Twist the tool to unlock the rear deck. It should click & release and a small space appears enabling you to use hands (that friend again) under it (the deck). Lift the deck up & back until the hydraulics kick in and keep the deck vertically open. Now you are ready to tackle the roof & rear window for storage under the rear deck cover. Get a friend, if possible to help with the lifting...remember, this is a "Manual" job! Once here, gently push back & lower the rear window portion of the roof into the open storage area simultaneously followed by the remainder of the roof itself. Watch fingers for possible pinching in the levers, etc., during this part of operation Hopefully you now have the roof & rear window stored in the area in front of trunk and be able to lower the rear deck to almost closed position. If so, go back to the tool and twist it to 'lock' the deck in place with roof stored. Remove tool from the ski storage area by reversing procedure above. Now comes the "Moment of Truth"! With the ignition turned on and car running, use the roof switch to bring the stored roof up and all the way to the closed position. Don't forget you must keep your finger on that switch until the operation completely finishes. Then, reverse the process to open & store the roof for a good blow dry (drive)!

The convertible top motor and release lever are in the luggage compartment.
From the Bentley manual, the following general procedure is suggested in order to close the top in an emergency situation.
Main motor. To release the top linkage from the motor, lift the left corner of the rear seat to access emergency release handle.
It is then possible to push the top manually to a near closed position. In case of the semi-automatic top, simply attach and lock the front latches.
Front latches. Once the fully automatic convertible top has been released from the motor and manually pushed to near-closure, emergency latching of the top is possible by using the S-shaped hex key provided in the emergency tool kit(attached to the trunk lid underside).
First, remove the the plastic cover over the latch motor in the front bow of the convertible top.
Next, use the hex key from the tool box to crank the front latches shut.

After a manual raise or lower of the convertible top using the red latch behind rear seat....Gap in cover near window right ? Unhitch the cover on the passenger side rear near gas tank and inside you'll see the convertible motor. The rear level disengages the motor so you can move the top manually. Snap the motor back into place and then push the top control to fully close the top eliminating the gap. Then you'll have to find out why it stopped in the first place.