Manual for DP-SE7/SE7(G)/SE9

Manual for DP-SE7/SE7(G)/SE9

Brand: KENWOOD

Category: Audio

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 6:51 p.m.

Manual Publish Date: 1997-10-01

Warranty Information

No specific warranty period is mentioned in the provided pages.

The manual provides detailed information on the operation, circuit description, adjustment procedures, and component layout for the KENWOOD DP-SE7/SE7(G)/SE9 Compact Disc Player. It includes external views, system configurations, and exploded views of the mechanism and unit. Specific sections cover test modes for alignment, laser power adjustment, focus error bias, tracking error balance, and tracking gain. The service manual also lists parts with their corresponding numbers and descriptions for both DP-SE7 and DP-SE9 models. Safety precautions regarding laser radiation are also highlighted.

Troubleshooting and error codes

No. ITEM INPUT SETTINGS OUTPUT SETTINGS PLAYER SETTINGS ALIGNMENT POINTS ALIGN FOR FIG.
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". 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. (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
Apply signal of 1.2 kHz, 50mVrms to CN3 pin 5-6.		 Connect a LPF to CN3 pin 5-6 to which you connect an oscilloscope or AC voltmeters. Press the PLAY/PAUSE key, then confirm that the LED is "05". TRACKING GAIN VR3 Two VTVMs should read the same value. (e)
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