Service Manuals, User Guides, Schematic Diagrams or docs for : Funai DR DR-A2677 & A2631 & B2737 DR-A2677 & A2631 & B2737
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www.freeservicemanuals.info 12/1/2013 www.nostatatech.nl
SERVICE MANUAL
DVD RECORDER
DR-A2677
DR-A2631
DR-B2737
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www.freeservicemanuals.info 12/1/2013 www.nostatatech.nl
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1
Laser Beam Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-1
Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1
Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1
Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
How to Initialize the DVD Recorder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
Firmware Renewal Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1
Function Indicator Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1
Schematic Diagrams / CBA's and Test Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
IC Pin Function Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
Manufactured under license from Dolby Laboratories.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories.
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www.freeservicemanuals.info 12/1/2013 www.nostatatech.nl
SPECIFICATIONS
Item Conditions Unit Nominal Limit
1. VIDEO
1-1. Video Output 75 load Vp-p 1.0
1-2. S-Video Output
Y (Luminance) 75 load Vp-p 1.0
C (Chrominance) 75 load Vp-p 0.3
2. AUDIO
2-1. Output Level Vrms 2.0
2-2. Frequency Response
DVD-VIDEO LPCM fs = 96 kHz Hz 20 - 44 k
fs = 48 kHz Hz 20 - 20 k
Audio CD fs = 44.1 kHz Hz 20 - 20 k
2-3. Signal/Noise Ratio
DVD-VIDEO LPCM dB 85
CD dB 85
REC & Playback Input: 2 Vrms, Rec Speed: SP dB 85
2-4. THD+N 1 kHz, 0 dB
DVD-VIDEO LPCM % 0.01
CD % 0.01
REC & Playback Input: 2 Vrms, Rec Speed: SP % 0.01
3. TUNER
3-1. Video Output 75 load Vp-p 1.0
3-2. Video S/N dB 42
3-3. Audio Output dBv -12
3-4. Audio S/N dB 46
Notes:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply: 220 - 240 V ~ 50 Hz
3. Load imp.: 100 k
4. Room ambient : 5 ◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo