KENWOOD DPFK6010V
Instrukcja Serwisowa

DPF-K6010V
ADJUSTMENT
No. ITEM INPUT SETTINGS OUTPUT SETTINGS Apply the sensor section of optical power meter on the pickup lens. PLAYER SETTINGS While pressing the DISC 3 key, turn the AC ON. Press the DISPLAY key, and then press the SELECT [ 3 ] key. confirm that the display is "2 01". Press the SELECT key(3), then confirm that the display is"2 01". ALIGNMENT POINTS ALIGN FOR On the power from 0.05 to 0.15 mW, when the diffraction grating is correctly aligned with the RF level of 0.8 Vp-p or more. Symmetry between upper and lower patterns DC=0±25mV FIG.

1

LASER POWER

�

�

(a)

2

TRACKING ERROR BALANCE

Test disc Type 4

Connect an oscilloscope as follows. CH1 : RF (CN2 PIN1) CH2 : TE1 (CN2 PIN6)

TE BALANCE VR2

c

3

FOCUS ERROR BIAS

Test disc Type 4

Connect an oscilloscope as follows. CH1 : RF (CN2 PIN1) CH2 : TE1 (CN2 PIN6) Connect a LPF to CN2 pin 5-6 to which you connect an oscilloscope or AC voltmeters.

Press the SELECT key(3), then confirm that the display is "2 02".

FE BIAS VR1

Optimum eye pattern

(b) or (d)

4

Test disc TRACKING Apply Type 4 of 1.2 signal GAIN kHz, 50mVrms to CN2 pin 5-6.

Press the SELECT display then confirm that thekey(3), is "2 02".

TRACKING GAIN VR3

Two VTVMs should read the same value.

(e)

Note: Type 4 disc : SONY YEDS-18 Test Disc or equivalent. LPF: Around 47 k� + 390 pF or so. Step 1~4 are in Test Mode.

(a) Laser power
0.05~0.15 mW

(e) Tracking gain CN2
1 2 3

VC + + L.P.F. VTVM

_ Pickup 1.2 kHz 50 mVrms Optical power meter +

4 5 6 7

L.P.F.

VTVM

10