Power after the power is switched on, power on the system where the power goes into protection status, the red light keeps flashing. Reflected through the user record, before the Dragon AVR-1803 repair, reset the channel after a silent, after reset the channel in recent years, but a configuration, or 6.1-channel, home theaters are not used, English logo for the back, some machines are after the two shared a amplifier rear channel level. According to first check the rear channel amplifier Board of this phenomenon, this trial after losing one channel of the amplifier tube power supply,LdGservice manual download site
LdGservice manual download site
Able to boot correctly, shows a short circuit is the reason of protection. Measuring amplifier with rear panel found that final amplifier tube D2390/B156 has a short circuit, resistor 47 ohm circuit, an amplifier before tube C1845/A992 short circuit, replace all damaged components test machine troubleshooting. Denon amplifier tubes and other power amplifier tube, is not a simple transistor, models for D2390/B1560 of composite tubes of the tube is a Darlington, can not use the other transistor in place, promoting the level of D947F for composite pipe, an amplifier before tube C1845/A992 for ordinary triode. Repairs to components when the correct replacement.LdGservice manual download site
Tianlong AVR-1604, TL-AVR-1803 amplifier and power amplifier are largely similar, especially machine materials and layout, are the same version, just use the functional interface is slightly different. See below comments on the Web about 1803.LdGservice manual download site
DENON AVR-1803 Denon Freudian slip (TL) amplifier introduction to intermediate machine. 6.1-channel upgrade easily, wrapping and precise dynamic response is good, sound information is very abundant. With function and Dolby Digital EX decoding DTS-ES decoding capabilities, along with DOLBY PRO LOGIC II decoding functions. This amplifier has turn a 2-channel signal into a high quality multi-channel DTS signal NEO:6 mode, 96kHz/24bit signal corresponds to high quality using advanced high-quality 32bit quality DSP processor.LdGservice manual download site
LdGservice manual download site
130W, identical separate six-channel power amplifier section with 7 kinds of beautiful Denon original DSP surround mode and equipped cinema circuit. This amplifier provides users with perfect enjoyment: sound bright and strong sense of direction, wide dynamic range, able to maintain overall coherence and a sense of balance, good low frequency levels, but the absence of its high-end machine voice is rather mellow and delicate texture of landscaping.LdGservice manual download site