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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.
AR-404/KRF-A4030/A4030E/A4030-S
CIRCUIT DESCRIPTION
1. BACK UP DATA AND INITIAL STATE
1-1 BACK UP
(1) AMP � POWER.......................................STANDBY � INPUT SELECTOR .....................TUNER � BALANCE ...................................CENTER � SPEAKER A RELAY ...................ON � SPEAKER B RELAY ...................OFF � VOLUME LEVEL ........................ -66dB � BASS LEVEL...............................0dB � TREBLE LEVEL ..........................0dB � INPUT LEVEL .............................0dB � SOURCE DIRECT.......................OFF � TAPE2/MONITOR .......................OFF (2) TUNER � BAND ..........................................FM � PRESET CHANNEL...................."--" � FREQUENCY..............................LOWER LIMIT VALUE K1...............................FM:87.50MHz AM:530kHz E1/E3 .........................FM:87.50MHz AM:531kHz � AUTO/MANUAL ..........................AUTO � DISPLAY MODE .........................FREQUENCY � E ON THRUST RECEIVING .......OFF MODE � T1 VOLUME ................................OFF(-66dB)
1-2 INITIAL SETTING
The initial setting is performed when the AC power cord is plugged into the AC power wall out let while pressing the power (STANDBY) key.
2. DESTINATION LIST OF TUNER
TUNER DESTINATION K,P M,X M E TYPE K1(1700) E1 K2(1600) E3 RDS BAND FM AM FM AM FM AM FM AM RECEIVING FREQUENCY RANGE 87.5MHz~108.0MHz 530kHz~1700kHz 87.5MHz~108.0MHz 531kHz~1602kHz 87.5MHz~108.0MHz 530kHz~1610kHz 87.5MHz~108.0MHz 531kHz~1602kHz CHANNEL SPACE 100kHz 10kHz 50kHz 9kHz 100kHz 10kHz 50kHz 9kHz IF +10.7MHz +450kHz +10.7MHz +450kHz +10.7MHz +450kHz +10.7MHz +450kHz PLL DSW3 DSW2 DSW1 DSW0 REFERENCE (D507) (D505) (D504) (D510) FREQUENCY 25kHz 10kHz 25kHz 9kHz 25kHz 10kHz 25kHz 9kHz 0 0 0 0 0 0 0 1 0 1 0 0 0 1 1 1
DSW0~DSW3(DIODE SW)
* 0: NONE DIODE,1:ADD DIODE
3. TEST MODE
3-1 SETTING
Turn the power ON while pressing the [BAND] key.
� During the test mode, it can be operated in a special manner that is deferent from an ordinary operation by using the keys on the remote control or the main body ,specifically as shown in the following table (3-5 CONTENTS). � Channel space will be no changed in the test mode.
3-2 CANCELLATION
Unplug the AC power cord from an AC power wall outlet.
3-3 STARTING ACTIVE CONTENTS
� The power on state is entered whenever the power is trued on while pressing the [BAND] key. � All functions are initialized and activated in the all lighting mode. � All lighting mode is canceled when any main unit's keys are pressed. The normal display obtained when the selector is set to TUNER then appears. � E2PROM check(Etype only). Check the reading data and the writing data of the E2PROM after setting the test mode. Display shows blank if the reading data and writing data are the same. Display shows "LW" if the different data will be written to E2PROM.
3-5 CONTENTS
3-5-1 TUNER FUNCTION WITH THE SELECTOR ON TUNER (E TYPE ONLY)
OPERATION KEY FUNCTION PTY DISPLAY TA/NEWS S LEVEL RF ATT FL DISPLAY REMARKS
(EX.) (1) (1)(SLEVEL), (RF ATT)OFF (2)(SLEVEL), (RF ATT)ON (2) (3) (3)(NORMAL), (RF)ATT OFF CYCLE P.CALL UP P.CALL FREQUENCY PI CODE PI 0000 PI CODE ON/OFF
3-4 ACTIVE CONTENTS
� The mute control is not activated when the mode is switched. � The test mode will be terminated by plugging it off the power source or by initializing it when all the settings will be initialized.
3-5-2 AMP FUNCTION WITH THE SELECTOR ON SOMETHING OTHER THAN TUNER � One touch max,min setting for Audio level. SOUND KEY KEY MASTER VR. BASS TREBLE BAND AUTO MEMORY -89dB 0dB -10dB 0dB 0dB 0dB +10dB +10dB +10dB
Bass and treble are selected while the sound key is pressed.
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