Section Electrical Adjustments, CD Section

SECTION 3 ELECTRICAL ADJUSTMENTS

CD SECTION

Note:

1.CD Block basically constructed to operate without adjustment. Therefore, check each item in order given.

2.Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.

3. Use the oscilloscope with more than 10 MΩ impedance.

4.Clean an objective lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.

Focus Bias Adjustment

Setting: This adjustment is performed with the set placed horizontally.

oscilloscope

SERVO board

TP (RF) +

TP (RF. GND) –

Procedure:

1.Connect an oscilloscope between TP (RF) and TP (RF. GND) on the SERVO board.

2.Connect the power supply.

3.Push the RESET button (S900) on the MAIN board.

4.Insert the disc (YEDS-18) and playback.

5.Adjust RV1 so that the oscilloscope waveform is clear and check RF signal level is correct or not.

Note: Clear RF signal waveform means that the sharp “” can be clearly distinguished at the center of the waveform.

RF signal waveform

VOLT/DIV: 200 mV

TIME/DIV: 500 nS

level: 1.0 – 1.5 Vp-p

•When observing the eye pattern, set the oscilloscope to AC range and raise the vertical sensitivity so that it may be easily seen.

Adjustment Location: servo board

Focus Gain Adjustment (Coarse adjustment)

This adjustment is not required unless the following parts are replaced:

•Optical pick-up

•RV4

Procedure:

1.Set RV4 to the standard position. (mechanical center)

2.Check whether operation noise (while noise type) caused by the 2-axis device (lens section of the optical pick-up) is abnormally loud.

If the operation noise is too loud, turn RV4 slightly counter-

clockwise.

•If the gain is too low:

Focus does not function and no music is selected.

•If the gain is too high:

Noise caused by scratches and dust is heard and the operation becomes unstable.

Adjustment Location: servo board

Adjustment Location: servo board (component side)

FOCUS GAIN ADJ

RV4

IC3

CN2

	IC1	(RF. GND)
	CN1
		IC2

(RF)

CN3

RV1

FOCUS BIAS ADJ

CDX-1000RF specifications

The Sony CDX-1000RF is a notable addition to the world of automotive audio systems, offering an impressive blend of quality, reliability, and advanced technology. This car CD player boasts a range of features that appeal to audiophiles and casual listeners alike, enhancing the in-car experience for commuters and road warriors.

One of the standout features of the CDX-1000RF is its ability to play a variety of audio formats, including standard CDs, CD-Rs, and CD-RWs. This versatility allows users to enjoy their favorite music from different mediums. Moreover, the player incorporates advanced digital signal processing technology, which significantly enhances audio quality by minimizing distortion and optimizing sound output.

The CDX-1000RF also features a built-in radio tuner that supports AM and FM bands, complete with RDS functionality. This feature enables users to receive real-time information such as song titles, artist names, and traffic updates, making it easier to stay informed while on the road. The user-friendly interface includes an adjustable LED display, providing clear visibility of all necessary information, even during daylight driving.

Another significant characteristic of this model is its seamless integration with external audio devices. With multiple inputs, including auxiliary inputs and USB ports, users can easily connect their smartphones or portable music players. This connectivity allows for the direct playback of digital music files, further expanding the listening options available in the car.

The CDX-1000RF is designed with user convenience in mind. Its rotary dial and intuitive button layout facilitate easy navigation through playlists and settings. Additionally, the player supports remote control functionality, allowing users to adjust settings without taking their eyes off the road.

Durability is also a key aspect of the CDX-1000RF. Built to withstand the rigors of automotive environments, the player incorporates robust materials and construction techniques that ensure longevity and reliability. The device is engineered to resist shock, providing steady playback even on bumpy roads.

In summary, the Sony CDX-1000RF stands out in the automotive audio market due to its diverse format compatibility, advanced audio processing technologies, and seamless connectivity options. Combined with a user-friendly interface and impressive durability, it represents a strong choice for car enthusiasts seeking to enhance their audio experience without compromising on quality. Whether for daily commutes or long journeys, the CDX-1000RF delivers exceptional sound performance and functionality.