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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
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I will definitely be back for more information when I need it.
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The service manual when downloaded and printed out was clear and easy to read. I would have liked to have been able to enlarge some details, but this was not possible as the file permissions did not allow this. The service was very good. The time taken from placing my order to downloading the document was only a few minutes.
TX-SR875 OPERATION CHECK-2
SPEAKER PROTECT-2 (CURRENT DETECTION)
[When] 1. Exchange the power transistors (Q6050 - 6056, Q6060 - 6066, Q6080 - 6086, Q6090 - 6096). 2. Exchange the amplifier PC board ass'y (NAAMP-9061, 9062, NACLA-9063 - 9069). [Procedure] <Note> No input. Do not check two or more channels at the same time. Do not connect a dummy load to speaker terminal longer than 2 seconds. 1. Press and hold down CD button, then press STANDBY/ON button while the unit is powered on. " Test - _ "is displayed only for 5 seconds.
Te st - _
Blinks
2. Press GAME/TV button, while " Test - _ " is displayed. The unit will be in the state of " Test-4-00 ".
Te st - 4- 00
3. Repeatedly press TONE + button until " Test-4-36 " is displayed.
Te st - 4- 36
4. Connect the dummy load of 3 ohms to the Front L ch speaker terminal. At this time, confirm that the speaker relay is not turned off.
Te st - 4- 36
5. Connect the dummy load of 1 ohm to the Front L ch speaker terminal. At this time, confirm that the speaker relay is turned off and " Protect " is displayed.
P r otect
Disconnect the dummy load immediately after checking the display of " Protect ".
Te st - 4- 36
6. Check other channels according to the same procedure as 4 and 5. Front R, Center, Surround L, Surround R, Surround Back L, Surroun R 7. Press STANDBY/ON button.
Turn off
Clear
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