What to do if the CD function changes to TV by itself on my JBL Processor?
If the CD function (PLAY, TRACK UP) on your JBL Processor changes to TV by itself, short pins 60 & 61 on IC701 together by solder or jumper wire on the MAIN PCB.
How to fix a JBL Processor when the display stays on after power off?
If the display stays on when the power is off on your JBL Processor, change R719 (10k ohm resistor) to 1k ohm (QAF0650-102) on the MAIN PCB.
What to do if CD play is intermittent and the display is blinking on my JBL Processor?
If you are experiencing intermittent CD play with a blinking display on your JBL Processor, try the following: 1. On the CONTROL PCB, cut out jumper J015 and R368. 2. Replace existing part Q313 with a 2SD882P NPN Transistor (RHN0882-001). 3. Solder 2 pcs. Diode IN41418 (RAD4148-001) in parallel with ZD301. Observe all polarities. 4. Insert and solder a 2.4 ohm resistor (or two 4.7 ohm [QAF0450-479] in parallel) at R364. 5. Insert and solder a 2.2K ohm resistor (QAF0650-222) at R363.
How to resolve intermittent CD play on a JBL Processor?
If CD play is intermittent on your JBL Processor, cut out C721 on the MAIN PCB.
How to fix uneven display brightness on a JBL Processor?
To correct uneven display brightness on your JBL Processor, cut out R364 & R367 on the CONTROL PCB.
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