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KENWOOD DPSG7G
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of KENWOOD DPSG7G Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 4 (click to view)
DP-SG7/SG7G
ADJUSTMENT
No. ITEM INPUT SETTINGS OUTPUT SETTINGS PLAYER SETTINGS ALIGNMENT POINTS ALIGN FOR FIG.

While pressing the "REPEAT" key, turn the AC ON. { Refer to test mode (MODE 0 0) } On the power from 0.08 to 0.15 mW, when the diffraction grating is correctly aligned with the RF level of 0.6 Vp-p or more.

1

LASER POWER

−

Apply the sensor section of optical power meter on the pickup lens.

Press the PLAY/PAUSE key, then confirm that the LED is "03".

−

(a)

2

FOCUS ERROR BIAS

Test disc Type 4

Connect an oscilloscope as follows. CH1 : RF (CN3 pin 1) CH2 : TE (CN3 pin 6)

Press the PLAY/PAUSE key, then confirm that the LED is "05".

FE BIAS VR2

Optimum eye pattern

3

TRACKING ERROR BALANCE

Test disc Type 4

Connect an oscilloscope as follows. CH1 : RF (CN3 pin 1) CH2 : TE (CN3 pin 6)

Press the PLAY/PAUSE key, then confirm that the LED is "03".

TE BALANCE VR1

Symmetry between upper and lower patterns

4

TRACKING GAIN

Test disc Type 4 Connect a LPF to CN3 Apply signal of pin 5-6 to which you 1.2 kHz, connect an oscilloscope 50mVrms to or AC voltmeters. CN3 pin 5-6.

Press the PLAY/PAUSE key, then confirm that the LED is "05".

TRACKING GAIN VR3

Two VTVMs should read the same value.

(e)

Note: Type 4 disc : SONY YEDS-18 Test Disc or equivalent.(KTD-0V) LPF: Around 47 kΩ+ 390 pF or so. Step 1~4 are in Test Mode.

(a) Laser power
0.08 0.15 mW

(e) Tracking gain
CN3
1 2 3 RF FE1 FE2 VC TE2 TE1

VC L.P.F. L.P.F. + + VTVM VTVM

_
1.2 kHz 50 mVrms

4 5 6

+

Pickup

Optical power meter

7 S.S

ALIGNMENT POINTS

CN1

T-GAIN

TE-B

FE-B

VR3

VR1

VR2

4

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