Adjustments - Pioneer CDJ-500G Service Manual

CDJ-500G, CDJ-500
1.7 ADJUSTMENTS
@ Adjustment Methods
If a disc player is adjusted incorrectly or inadequately, it may malfunction or not work at all even though there is nothing at all
wrong with the pickup or the circuitry. Adjust correctly following the adjustment procedure.
@ Adjustment Items/Verification Items and Order
If the specified values cannot be obtained or no adjustment is possible by performing the verifications or adjustments de-
scribed in steps 1-4, the pickup block may be defective.
| Sep{ tem | Test Point Adjustment Location
| 1 | Focus offset verification TP1, Pin6é(FCS. ERR) None
Tracking error balance verification TP1, Pin2(TRK. ERR)
3 Pickup radial/tangential direction TP1, Pinl(RF) Radial tilt adjustment screw,
tilt adjustment Tangential tilt adjustment screw
4 | RF level verification TP1, Pinl(RF)
TP1, Pin6(FCS. ERR)
TP1, Pin2(TRK. ERR)
7 MSB adjustment AUDIO OUT(JA801) VR402(MSB ADJ.L)
L or R terminal VR401(MSB ADJ.R)
| 8 | 3.58MHz Free-run Frequency adjustment TP3 VC501(FSC)
@ Abbreviation table
FCS. ERR :Focus Error
TRK. ERR :Tracking Error
FCS GAN_ :Focus Gain
TRK GAN :Tracking Gain
FCS.IN — :Focus In
TRK.IN — :Tracking In
@ Measuring Instruments and Tools
1.Dual trace oscilloscope (10:1 probe)
2.Signal generator
3.Test disc (YEDS-7)
4.8cm disc (With at least about 20 minutes of recording)
5.Low-pass filter (39k0Q+0.001F)
6.Resistor (100k22)
7.Ball point hexagon wrench (GGK1002)
8 Standard tools
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