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Original well scanned manual. Got the job done. Microwave problem found & corrected. For $5 and a new magnitron from ebay, it was a cheap and good the first shot fix. Electrical schematics allowed me to mage sure every thing else was ok before cutting and order for parts. Hard to live without.
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I was very skeptical of this website, I have never downloaded manuals before. I put it on the AMEX and payed through Paypal to ensure protection. I got the manual exactly as described and now I can replace the filter capacitor for this amp. Great Price, others selling for 12.99 or more and this is the same manual. I will search out this website for other manuals. Thank you
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Manual was reasonably easy to follow. I am not an engineer or know much about electronics but with the manuals help I was able to figure out the problem, identify the part required for the repair. Replacement part cost around $30. Whilst replacing the part I was telling myself, "this aint gonna work cos it seems far too easy". Took about 15 minutes to do and my plasma TV works a treat. Would never have been able to do this without the service manual.
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It is OK, this manual help me to repair my dynacord
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Good manual. Even it is an old printed manual, it is well scanned and complete, with all drawings, schematics and parts list. Very good return for the cost.
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A
If this status continues for more than 3 seconds, the power is turned off (for Standby mode). If the port becomes "L" within 3 seconds, the unit resets automatically.
If this status continues for more than 3 seconds, the power is turned off (for Standby mode). If the port becomes "L" within 3 seconds, the unit resets automatically. When the power is turned off owing to DC detection (also when a user prompted by the warning indication turns off the switch on the primary side), key inputs are disabled for 60 seconds. The microcomputer backs up the value of the 60-second timer. The unit will only enter Standby mode, and power will not be turned on within 60 seconds in response to a key input after power-off on the primary side. (When the switch on the primary side is turned on again, key inputs will be limited for 60 seconds even if the timer value is less than 60 seconds.) After DC detection, power-on from the multiroom side is also disabled for 60 seconds. If the unit resets within 3 seconds (before the power is turned off) after DC detection, the normal operation is restored.
(2) Transformer temperature rise control
Valid with European and Japanese domestic models only. European models If the temperature at the transformer rises, the TRANS_DET port becomes "H." Detecting "H," the microcomputer performs the following operations: 1. System muting on 2. Protection relays off As long as the detection port remains "H," statuses 1 and 2 are maintained. When the port becomes "L" (when the temperature at the transformer drops), statuses 1 and 2 are canceled, and the unit resets automatically (automatic reset is requested by safety regulations). The warning indication "OVER HEAT" appears on the FL display.
B
(6) Diagnostic mode
This mode is only for servicing and checking the circuit design, and not open to users. When the DNR key and VSEL key are both held pressed for 3 seconds in Standby mode, the power is turned on, and the number of times of each defect or abnormality detection is sequentially displayed on the FL display. Displayed items: � DC detection � Overload detection � Fan detection � Temperature detection Hold the DNR key and VSEL key pressed for 3 seconds in Standby mode. PROTECT DC � PROTECT OVER � PROTECT FAN � PROTECT TEMP CHECK 003 CHECK 000 CHECK 000 CHECK 000 � With models other than North American models � With North American and Japanese domestic models
(3) Temperature detection
Valid with North American and Japanese domestic models only. The process mentioned in (1) is performed with European and other general-area models.
C
If the temperature at the heat sink rises, the TEMP1 port becomes "H." Detecting "H," the microcomputer performs the following operations: 1. System muting on 2. Protection relays off The warning indication "OVER HEAT" appears on the FL display. If this status continues for more than 3 seconds, the power is turned off (for Standby mode). If the port becomes "L" within 3 seconds, the unit resets automatically.
D
(4) Overload detection (abnormality detection)
If the speaker terminals are short-circuited or low-load driving is detected, the OL_DET port becomes "H." Detecting "H" in an interrupt process, the microcomputer performs the following operations: 1. System muting on 2. All relays off (expander output off) The expander output is turned off to perform detection during the interrupt. As the AC relay is also turned off, no warning indication appears on the FL display. 3. Power off (Standby mode)
E
There is no specific mode for clearing the above-mentioned diagnostic mode. Diagnostic mode is only cleared with an all-reset operation.
(5) DC detection (defect detection)
Only DC detection is enabled 2 seconds after power-on. If there is a fault in the power amplifier or a high-level signal lower than5 Hz is input, the DC_DET port becomes "H." Detecting "H," the microcomputer performs the following operations: 1. System muting on 2. Protection relays off The warning indication "AMP ERR" appears on the FL display.
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VSX-49TXi
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