HF636P, JDW HI-FI schematic please

[zen]

Hi all

This unit not ejecting CD tray.

No motor/mechanical noise at all, therefore, might be a supply issue.

[zen]

Re: HF636P, JDW HI-FI schematic please

On connector CON 7, measured 5V4 at pins marked MO + & MO -

Could be for tray motor but need to strip out this 3 CD tray mech to find out.

DOOR ERR appears in display.

[zen]

Re: HF636P, JDW HI-FI schematic please

Bit of a chore to strip mech out.

Tested voltage directly at tray motor pins & 5V4 present.

Gave the motor a little tap & the mech sprang into action.

Need I say more?

[lotas]

Re: HF636P, JDW HI-FI schematic please

Most likely stretched pasik (rubber belt) on the motor.

[zen]

Re: HF636P, JDW HI-FI schematic please

Thanks very much for your input Lotas

Not belt this time.

Cleaned brushes & lubricated bearings with a very fine watchmaker oil.

Working on test.

[zen]

Re: HF636P, JDW HI-FI schematic please

Also replaced tray motor belt as it felt slightly slack.