Sony CDP-790 - Service Manual

Compact disc player
Frequency response
Signal to noise ratio
Dynamic range
Harmonic distortion
Channel separation
Outputs
LINE OUT
(phono jacks)
DIGITAL OUT (OPTICAL)
(optical output connector)
PHONES
(stereo phone jack)
General
Power requirements
Power consumption
Dimensions
(approx., including
projections)
Weight (approx.)
US Model
SPECIFICATIONS
2 Hz - 20 kHz+0.3 dB
More than 104 dB
More than 97 dB
Less than 0.003%
More than 98 dB
Output level 2 V (at 50 kilohms)
Load impedance over 10 kilohms
Wave length 660 nm
Output level — 18 dBm
Output level max. 15 mW
Load impedance 32 ohms
120 V AC, 60Hz
14W
430 X 110 X 280 mm (w/h/d)
(17 X 49/.X 11'/s inches)
3.8 kg (8 lbs 70z)
Supplied accessories
Audio cord 1 (2 phono plugs - 2 phono plugs)
Remote commander 1
R6 (size AA) batteries 2
Remote commander (RM-D290)
Remote control system infrared control
Power requirements 3 V DC with two R6 (size AA) batteries
Dimensions Approx. 67 X 18 X 175 mm (w/h/d)
(2°/4X 7/32 7 inches)
Weight Approx. 150 g (5.3 0z)
Including batteries
Design and specifications subject to change without notice.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY SHADING AND MARK
A ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
COMPACT DISC PLAYER
ONY.

Sony CDP-790 Specifications

General

Brand	Sony
Model	CDP-790
Category	CD Player
Language	English

Summary

SPECIFICATIONS

SAFETY-RELATED COMPONENT WARNING!

SAFETY CHECK-OUT

LEAKAGE TEST

Procedure for checking AC leakage from exposed metal parts to earth ground.

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING

Laser Diode Properties

Details on laser diode material, wavelength, emission duration, and output power.

SECTION 1 GENERAL

1-1. LOCATION OF CONTROLS

Identifies the location of all controls on the front panel and remote commander.

SECTION 2 ELECTRICAL ADJUSTMENT

RF Level Check

Procedure to check the RF signal level and eye pattern for optimal playback.

RF PLL Free-run Frequency Check

Procedure to confirm the RF PLL free-run frequency using a frequency counter.

Focus;Tracking Gain Adjustment

Adjustment of focus and tracking gain to ensure proper pick-up follow-up.

SECTION 3 DIAGRAMS

3-1. SEMICONDUCTOR LEAD LAYOUTS

Diagrams showing semiconductor lead layouts and their locations on the circuit boards.

3-2. PRINTED WIRING BOARDS

Printed wiring board layouts for the main, BD, loading, display, and switch boards.

SECTION 4 EXPLODED VIEWS

4-1. CHASSIS BLOCK

Exploded view and parts list for the chassis block assembly.

4-2. MD BLOCK (CDM14-5 BD1)

Exploded view and parts list for the MD block (CDM14-5BD1) mechanism.

4-3. OPTICAL PICK-UP BLOCK (BU-5 BD1)

Exploded view and parts list for the optical pick-up block (BU-5BD1).

SECTION 5 ELECTRICAL PARTS LIST

ACCESSORIES AND PACKING MATERIALS

CORRECTION-1