Kenwood KVT-910DVD Service Manual
Also see for KVT-920DVD: Instruction manual
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KVT-910DVD/920DVD/930DVD/940DVD/960DVD51ADJUSTMENTX86 Circuit Adjustment Specification (E, W type)Item Adjustment Method & Value Condition1. Divercity free-runfrequencyadjustmentVR12. Adjustment of audiodetection coilL1013. Adjustment of imagedefection coil fordiversityL1031. Connect frequency counter to Pin1 [IC2 #7] of CN5.2. Connect CN53 Pin3 [IC2 #8] of CN5 and Pin2 [GND].3. Adjust VR1 [15KHz] to 15625Hz ± 100Hz.1. Input RF signal 70dBμ 9CH color bar to ANT input terminal.2. Connect a voltmeter to TP [SIF] (both ends of R107) andadjust L101 so that 0V ± 0.01V is achieved.1. Input RF signal 70dBμ 9CH stair step to ANT inputterminal.2. Observe the waveform of TP [VIDEO] (Q102 emitter R108),using an oscilloscope. Adjust L103 so that the edges ofsync chip and pedestal are horizontal.• ANT no signal• PAL B/G• P/S radio 10dB• PAL B/G• Turn color off.NG OK NG |
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