Peavey 6505TM+ operation manual Bias Adjust System, Front Panel Features

7/8. EFFECTS SEND/EFFECTS RETURN

Signals are supplied to outboard effects or signal processing units by patching from the Effects Send (7) output into the outboard unit(s) and back into the Effects Return (8) input using shielded cables with 1/4" mono phone plugs. Only non-gain effects devices (chorus, reverb, delay, etc.) should be used in the effects loop. If footswitch is used, “Effects” must be selected (LED illuminated) for effects to work.

9. PREAMP OUT

This output can be used to send a preamp signal from the 6505™+ to a mixing console, tape recorder, etc., using a shielded instrument cable. Patching from the PREAMP OUT does not affect the normal operation of the amplifier.

BIAS ADJUST SYSTEM

10. BIAS TEST TERMINALS

These terminals, along with the adjustment knob behind the grille are provided to measure and adjust the power amp tubes’ bias. The bias adjustment should only be done by a qualified technician.

FRONT PANEL FEATURES

13 15 21 15 12 11

14 16 22 20 17 18 19 23 24

ON STANDBY

11. POWER SWITCH/LED

This switch supplies power to the unit. Depressed to the “ON” position, the red Power LED indicator will illuminate above the Power Switch when power is being supplied to the unit.

12. STANDBY SWITCH/LED

This switch allows the 6505+ to be placed in a non-operational standby mode. When the Standby Switch is activated, the tubes remain hot and ready for instantaneous operation, eliminating warm-up time. The Standby LED indicator above the switch will illuminate when the amp is in the operational mode.

PREAMP

13. INPUT

The 6505+ input jack is designed to accommodate a variety of guitar output levels, regardless of pickup configuration. Due to the extreme high gain capabilities of the 6505+, it is imperative that you use a premium shielded instrument cable in order to minimize noise.

14. CHANNEL SELECT SWITCH

This switch allows selection of the Rhythm or Lead Channel. Depressing the switch to the “in” position activates the Lead Channel. The red LED next to the Lead Pre control will illuminate to indicate that the Lead Channel is active. In the “out” position, the Rhythm channel is activated and the green LED illuminates next to the Rhythm Pre control to indicate that the Rhythm Channel is active. Channels may be selected using the remote footswitch. If remote selection is desired, the Channel Select Switch must be set to the “in” position (Lead Channel). See page 11.

15. CHANNEL SELECT LED

Both the Rhythm Channel and Lead Channel have these LEDs to indicate which channel is active. The two Channel Select LEDs are never on at the same time. The channel with its indicator illuminated is the active channel.

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