7 Series Recovery Procedure for Units that Do Not Boot
Escalation Article
Written by Jerome King
Updated at September 23rd, 2026
Table of Contents
Brand:
- JBL
Affected Products:
- 705P
- 708P
Summary:
Some units may fail to boot completely or fail to boot intermittently. After applying power, the boot cycle will not complete and the LCD will display “708P" or "705P”. It may be possible to restore functionality without the need to replace board assembly or amplifier assembly.
Troubleshooting:
The procedure to restore functionality will require that unit be sent to an authorized service center.
Please contact HARMAN Support to locate a service center.
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