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KENWOOD DVR7000
Service Manual


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

Description of KENWOOD DVR7000 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 45 (click to view)
DVR-7000

4.2 MAIN ASSY ADJUSTMENT
Note : Use disc : [ PAL DVD test disc ] No.
1

It is recommended to adjust using PAL Disc. Adjustment Value
27.000000MHZ ± 130Hz

Adjustment Name
Master clock free-running adjustment (Clock system adjustment)

Adj. Point Measurement Point
VC3001 MAIN ASSY IC4007 Pin54 (CLKO) (M65774AFP) Y output of S terminal (75Ω termination)

Adjustment State
No input signal or during test disc playback Playback the PAL DVD test disc(100% color-bar). Terminate the Y output of S terminal with 75Ω and adjust so that the level of between sync tip and white peak becomes 1.0Vp-p. Playback the PAL DVD test disc(100%colorbar). Terminate the C output of S terminal with 75Ω and adjust so that the amplitude of color burst becomes 300mVp-p. Playback the PAL DVD test disc(100% color-bar). At the pin 11 of CN7001 in the MAIN ASSY, adjust so that the level of between sync tip and white peak becomes 760mVp-p. Playback the PAL DVD test disc(100%colorbar). At the pin 13 of CN7001 in the MAIN ASSY, adjust so that the level of between bottom and top becomes 520mVp-p in the 100% color-bar screen. Playback the PAL DVD test disc(100%colorbar). At the pin 15 of CN7001 in the MAIN ASSY, adjust so that the level of between bottom and top becomes 520mVp-p in the 100% color-bar screen.

2

Y level adjustment of CVBS system (Output system adjustment)

VR7002

1.0Vp-p ± 40mV

3

C level adjustment of CVBS system (Output system adjustment)

VR7001

C output of S terminal (75Ω termination)

300mVp-p ± 12mV

4

Y level adjustment of component system (Output system adjustment)

VR7003

MAIN ASSY CN7001 Pin11 (Y(G) Out)

760mVp-p ± 22mV

5

PB level adjustment of component system (Output system adjustment)

VR7004

MAIN ASSY CN7001 Pin13 (PB(B) Out)

520mVp-p ± 15mV

6

PR level adjustment of component system (Output system adjustment)

VR7005

MAIN ASSY CN7001 Pin15 (PR(R) Out)

520mVp-p ± 15mV

When NTSC test disc GGV1025 is used, the adjustment No.2 to No.6 value is changed to the following value. No.
2

Adjustment Name
Y level adjustment of CVBS system (Output system adjustment)

Adj. Point Measurement Point
VR7002 Y output of S terminal (75Ω termination)

Adjustment Value
980mVp-p ± 39mV

Adjustment State
Playback the NTSC DVD test disc (75% color-bar). Terminate the Y output of S terminal with 75Ω and adjust so that the level of between sync tip and white peak becomes 980mVp-p.

3

C level adjustment of CVBS system (Output system adjustment)

VR7001

C output of S terminal (75Ω termination)

280mVp-p ± 11mV

Playback the NTSC DVD test disc(75%colorbar).Terminate the C output of S terminal with 75Ω and adjust so that the amplitude of color burst becomes 280mVp-p. Playback the NTSC DVD test disc (75% color-bar). At the pin 11 of CN7001 in the MAIN ASSY, adjust so that the level of between sync tip and white peak becomes 745mVp-p. Playback the NTSC DVD test disc(75%colorbar). At the pin 13 of CN7001 in the MAIN ASSY, adjust so that the level of between bottom and top becomes 390mVp-p in the 75% color-bar screen. Playback the NTSC DVD test disc (75% color- bar). At the pin 15 of CN7001 in the MAIN ASSY, adjust so that the level of between bottom and top becomes 390mVp-p in the 75% color-bar screen.

4

Y level adjustment of component system (Output system adjustment)

VR7003

MAIN ASSY CN7001 Pin11 (Y(G) Out)

745mVp-p ± 22mV

5

PB level adjustment of component system (Output system adjustment)

VR7004

MAIN ASSY CN7001 Pin13 (PB(B) Out)

390mVp-p ± 12mV

6

PR level adjustment of component system (Output system adjustment)

VR7005

MAIN ASSY CN7001 Pin15 (PR(R) Out)

390mVp-p ± 12mV

Note : Do the MAIN ASSY adjustment first, before TUMJ ASSY adjustment. When using 75% color bar, adjust making PB/PR output to 75%.

45

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