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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.
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The manual is useful for trouble shooting for an old instrument. It saved money,and let me enjoy DIY.
KRF-V7090D/VR-9050/9060/9070
ACCESSORIES / CAUTIONS / ADJUSTMENT
ACCESSORIES
AM loop antenna (1) (T90-0893-05) Remote control unit (1) See the following table. Batteries (R03/AAA) (2)
FM indoor antenna (1) U.S.A. and Canada Other countries (T90-0905-05) (T90-0855-05)
PCB vs MODEL
MODEL VR-9050/-S VR-9060/-S VR-9070/-S KRF-V7090D-S KRF-V7090D/D-S SURROUND K,P X08-3390-10 K,P X08-3390-11 K,P X08-3390-12 X E X08-3390-10 X08-3392-71 AUDIO X09-6960-10 X09-6960-10 X09-6960-10 X09-6960-71 X09-6962-71 SUB X13-7960-10 X13-7960-11 X13-7960-12 X13-7962-71 X13-7962-71 DISPLAY X14-7900-10 X14-7900-11 X14-7900-12 X14-7900-71 X14-7902-71
REMOTE CONTROL vs MODEL
MODEL VR-9050/-S VR-9060/-S VR-9070/-S KRF-V7090D-S KRF-V7090D/D-S K,P K,P K,P X E PARTS # A70-1673-05 A70-1671-05 A70-1675-05 A70-1674-05 A70-1674-05 CONTROLLER # RC-R0731 RC-R0829 RC-R0918 RC-R0731E RC-R0731E
CAUTIONS
Resetting the Microcomputer
The microcomputer may malfunction (unit cannot be operated, or shows an erroneous display) if the power cord is unplugged while the power is ON, or due to some other external factor. If this happens, execute the following procedure to reset the microcomputer and return the unit to its normal operating condition.
Memory back up function
Please note that the following items will be deleted from the unit's memory if the power cord is disconnected from the AC outlet for approximately 1 day. Power mode Input selector settings Speaker ON/OFF Volume level BASS, TREBLE, INPUT level TONE ON/OFF LOUDNESS ON/OFF Dimmer level Listen mode setting Speaker settings Distance setting Input mode setting Sound mode settings Broadcast band Frequency setting Preset stations Tuning mode ACTIVE EQ mode GAME mode setting
Unplug the power cord from the wall outlet, then plug it back in while holding down the (POWER ON/STANDBY) key.
� Please note that resetting the microcomputer will clear the contents of the memory and returns the unit to the state it was in when it left the factory.
ADJUSTMENT
No. ITEM INPUT SETTINGS OUTPUT SETTINGS RECEIVER SETTINGS ALIGNMENT SETTINGS VR1(FL) VR2(FR) VR3(SL) VR4(SR) VR5(CENTER) VR6(SBL) X09(A/4) VR702(SBR) X13(F/6) ALIGNMENT POINTS FIG.
AUDIO SECTION
<1>
IDLE CURRENT *
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SPEAKER : A CN11, FL ch. CN10, FR ch. CN14, SL ch. CN13, SR ch. CN12, C ch. CN15, SBL ch. X09(A/4) CN706, SBR ch. X13(F/6)
(FRONT 2ch MODE) Volume: Minimum
Adjust every potentiometer 10 minutes later after turned the power on.
* Idling Current Adjustment All power amplifier stage need idling current adjustment after the installation of TRAIT transistor. 1. Connect a voltmeter to CNs with the correct polarity as indicated by the PCB silk print. 2. Adjust the preset, VRs to get 8.8mV (Idling current = 20mA) at the voltmeter reading. 3. Repeat step few times for all channels.
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