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I needed a service manual as the display on my oscilloscope was very dim. I thought I'd give owner-manuals.com a try, as they advertised a huge number of manuals. Sure enough they had one listed. I bought it hoping it would be useful... actually, I bought it hoping it would be readable! I've had manuals from online sources in the past, and been very disappointed. Not this time! An excellent manual, complete, and very readable. Using it I fixed my 'scope, and as such the manual was an investment that paid off manyfold. Do I have any complaints? One very minor one - The circuit diagrams could have been scanned at a higher resolution, as some of the details were a little difficult to make out - not impossible, just not as easy as my old eyes would like! Overall, I'm very satisfied with my manual, and I will certainly be using this company again. Well done.
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I Have looked for this manual for quiet a while now, I have finally found it here. I believe this is the only place they have them in a very nice scan, pages are very clear to read, some of the pages are a bit tilted but overall it is great to have this manual available for purchase. Thanks
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This is quiet a rare manual, I Have looked for this manual for quiet a while now, I have finally found it here. I believe this is the only place they have them in a very nice scan, Excellent guide: very clear, enabling us to print readable diagram overall it is great to have this manual available for purchase. This is a complete service manual no pages are missing. Thanks
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This SM is quiet scarce and hard to find it is an excellent Service manual, very clear to read and to print schematics and diagrams, Hi quality, Complete manual with no pages missing. I am very pleased with the manual and the fast service I have received. Great place to shop.
Good luck finding you manual...
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Quick delivery, the document was usefull, although the copy was i little bit unclear in the details.
KRF-X7775D/X7775D-S/VR-5080/5090
CIRCUIT DESCRIPTION
5.Test Mode
5-1 Setting Method of the Test Mode
�Turn on the power supply while pressing the "INPUT SELECTOR DOWN" key, to make a set in test mode.
5-2 Canceling the Test Mode
�The system is initialized and the test mode is cancelled if unplug the AC power cord from an AC power wall outlet.
5-3 Contents of the Test Mode
� The following operation is available when the FL is all lighting up mode only. Key SOUND LISTEN MODE THX MEMORY Operation Set up the RF frequency to428MHz. Set up the RF frequency to422MHz. Indicated the tuner destination in the FL. Changed the dimmer off/1/2 cyclically. Display RF BAND RF BAND EX. TYPE E1 ALL FL Light ON
6. Main Microcomputer: uPD784217A516 (X13, IC3)
6-1 Main Microcomputer Periphery block diagram
X11(IC2/21) Selector IC NJU7312AM X11(IC3/22/24) Selector IC NJU7313AM X11,IC23 Selector IC NJU7311AM X11,IC6 X13,IC6 LCD Remote Cont. Transmitter IC uPD17215GF X13,IC5 Serial Parallel TC74HC164AF
Protection
Fan
X07,K6 PWR Relay X07,K1~k4 SP. Relay
Vol. IC TC9459N
X11,IC8
97~99
1,2
94,95
88 78~82
Mute Circuit X08,IC43
Vol. IC TC9459N
X11,IC10
73,74
Sub u-Com uPD784224K507
Vol. IC TC9459N X11,IC12 Vol. IC TC9459N
X11,IC35
65,66
X13, IC3 Main Microcomputer uPD784217A516
3~7 36
TEXT UART
X25,J201 SL16
X25,ED1 FL X25,IC1
Vol. IC TC9459N
X11,IC34
FL Driver uPD780204
Power/Input Down Key X25 Panel Key
Tone Cont. IC TC9184AP
Model Type X05-513X, IC2
53 25~80
48,60
54
Destination SW Panel Door
KRF-X9995D VR-5900 only
Tuner Unit LC72131
X05-510X, IC2
58,59 25,26,30 93 8,10 REM2 50
PLL for Remote Control LV2105V
Except KRF-X9995D and KRF-X7775D X25,IC401 RF/IR IN SWITCH KRF-X9995D/ VR-5900 only
Rotary Encoder
X25,S19 Relay Cont.
Video Selector IC
X13(IC502,504,505) (IC603,604,701~703)
IR SEL.
IR Receiver Except KRF-X7775D (M/X/V TYPE) and KRF-X9995D (M/X TYPE)
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