Adjustment Method - JVC RX-8010VBK Service Manual

Audio/video control receiver

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RX-8010VBK

Adjustment method

Tuner section

1.Tuner range

87.5MHz~108.0MHz

AM(MW)

530kHz~1710kHz

Power amplifier section

Adjustment of idling current

Measurement location

Adjustment part

Attention

This adjustment does not obtain a correct adjustment value immediately after the amplifier is

used (state that an internal temperature has risen).

Please adjust immediately after using the amplifier after turning off the power supply of the

amplifier and falling an internal temperature.

1.Set the volume control to minimum during this adjustment.(No signal & No load)

2.Set the surround mode OFF.

2.Turn VR787 and VR788 fully counterclockwise to warm up before adjustment.

If the heat sink is already warm from previous use the correct adjustment can not be made.

3.For L-ch,connect a DC voltmeter between B2204 and B2205 (Lch)

And,connect it between B2213 and B2214(Rch).

4.30 minutes later after power on, adjust VR787 for L-ch, or VR788 for R-ch so that the DC voltmeter

value has 1mV~10mV.

* It is not abnormal though the idling current might not become 0mA even if it is finished to turn variable

resistance (VR787,VR788) in the direction of counterclockwise.

1-10

B2204-B2205(Lch) , B2213-2214(Rch)

VR787(Lch) , VR788(Rch)

Heat sink

B2213, B2214

VR788 (Rch)

VR787 (Lch)

B2204, B2205

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