This document is a service manual for the DVD Player model DVD-RV22PP (Black Type) and DVD-RV32P-CHINA-PRODUCT / DVD-RV32PC-CHINA PRODUCT (Black Type and Silver Type). It provides detailed information for servicing, including specifications, replacement parts, schematic diagrams, and adjustment procedures.
The device is a DVD Player with a region number of 1. It supports various disc types, including DVD-Video, DVD-R (DVD-Video compatible), CD-Audio (CD-DA), Video CD, CD-R/CD-RW (CD-DA, Video CD formatted discs), and MP3. For MP3, it recognizes a maximum of 999 tracks and 99 groups, with compatible compression rates between 32 kbps and 320 kbps. The DVD-RV32P-CHINA-PRODUCT / DVD-RV32PC-CHINA PRODUCT models also support WMA.
Important Technical Specifications:
- Power Supply: AC120 V, 60 Hz
- Power Consumption: 14 W (approx. 2 W in standby mode)
- Dimensions: 430 (W) × 247 (D) × 74.5 (H) mm [16 15/16” (W) × 9 12/16” (D) × 2 15/16” (H)] (excluding protrusions)
- Mass: 2.4 kg (5.31 lb.)
- Signal System: NTSC
- Operating Temperature Range: +5 to +35°C (+41 to 95°F)
- Operating Humidity Range: 5 to 90 % RH (no condensation)
- Video Output: 1 Vp-p (75 Ω) via Pin jack (1 system)
- S-Video Output: Y output level: 1 Vp-p (75 Ω), C output level: 0.286 Vp-p (75 Ω) via S terminal (1 system)
- Component Video Output: Y output level: 1 Vp-p (75 Ω), PB output level: 0.7 Vp-p (75 Ω), PR output level: 0.7 Vp-p (75 Ω) via Pin jack (Y: green, PB: blue, PR: red) (1 system)
- Audio Output: 2 Vrms (1 kHz, 0 dB) via Pin jack (2CH: 1 system, Subwoofer output (0.1 ch): 1 system). The DVD-RV32P-CHINA-PRODUCT / DVD-RV32PC-CHINA PRODUCT models also feature 5CH discrete output (5.1 ch).
- Audio Signal Output Characteristics (Frequency Response):
- DVD (linear audio): 4 Hz-22 kHz (48 kHz sampling), 4 Hz-44 kHz (96 kHz sampling)
- CD audio: 4 Hz-20 kHz
- S/N Ratio (CD audio): 115 dB
- Dynamic Range:
- DVD (linear audio): 102 dB
- CD audio: 98 dB
- Total Harmonic Distortion (CD audio): 0.0025 %
- Digital Audio Output: Optical terminal
- Pickup: Wavelength: 658 nm/790 nm, Laser Power: CLASS 2a/CLASS 1
Usage Features:
The manual outlines various service modes and self-diagnosis functions to aid in troubleshooting and repair. These include:
- Cumulative Operation Time Display Function: For spindle motor and DVD/CD laser, useful for identifying components with limited service life.
- Servo Process Display Function: Aids in fault diagnosis of player startup malfunctions.
- ADSC Internal RAM Display Function: Displays internal RAM data of the ADSC servo processor, including learned values for focus, tracking, data slice, and equalizer. This helps identify faulty parts in the servo system.
- Increased Number of Last Errors Stored: Stores up to 20 events for improved fault diagnosis.
- Jitter Check, Tilt Adjustment: Allows for adjustment of tangential and tilt adjustment screws to minimize jitter values, ensuring optimal disc playback.
- Region Number and Broadcast System Check: Verifies regional settings.
- Program Version Check: Confirms the FLASH ROM program version.
- Laser Drive Current Check: Monitors the laser drive current, with a guideline to replace the optical pickup if the value exceeds 55.
- Initializing DVD Player: Restores factory preset settings, useful when replacing microprocessors or P.C.B.s.
- Sales Demonstration Lock Function: Prevents disc ejection and disables ordinary operation, displaying "LOCKED" on the unit.
Maintenance Features:
The manual emphasizes safety precautions and specific procedures for handling sensitive components:
- General Safety Guidelines: Observe original lead dress, replace overheated/damaged parts, and ensure protective devices are properly installed.
- Leakage Current Checks (Cold and Hot): Detailed procedures for checking leakage current to prevent shock hazards.
- Prevention of Electro Static Discharge (ESD): Techniques for handling electrostatically sensitive devices (ESDs) like integrated circuits and optical pickups, including grounding procedures (wrist straps, conductive surfaces) and proper soldering practices (grounded-tip soldering iron, anti-static solder removal devices).
- Precaution of Laser Diode: Warnings against disassembling the laser unit and using a tester to check the laser diode, as it can cause damage.
- Optical Pickup Replacement: Specific instructions for handling and replacing the optical pickup unit, including cutting the antistatic flexible sheet after installation and removing short circuits on the laser diode leads.
- Firmware Updating and Recovery: Procedures for using a recovery disc to automatically update firmware and optimize the player after replacing FROM, EEPROM, and modular P.C.B.
- Disassembly Procedures: Step-by-step instructions for disassembling the casing, tray, front panel, mechanism unit, terminal P.C.B., module P.C.B., front-1 P.C.B., front-2 P.C.B., rear panel, mother P.C.B., clamp plate unit, traverse block, traverse gear, optical pickup unit, middle chassis, traverse gear A, and spindle motor unit.
- Adjustment Procedures: Details on optical pickup tilt adjustment using test discs (DVDT-S15 or DVDT-S01) and specialized tools (hex wrench, extension cables).
- Storing and Handling Test Discs: Guidelines for maintaining the flatness and precision of test discs.
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