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This scanned manual is well done in that most all the pages except for one is straight and clear- the way I would do them. One page was upside down but that happens. For the money that is charged on this site you get a pretty good deal. Now with complex repairs, I still prefer to us paper manuals which I have to buy at stereomanuals but the one I got here was much less than the $45 he was charging but this is a larger than normal manual for three different units. I am a picky manual user because I have used original manuals from Sony and Teac.
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Very useful service manual, was exactly what i needed.Good quality,reasonable price.Thank you.
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Acurate informations inside the SM and I could repair my old Sansui SC-3330 without any problems. Thanks.
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I used it to repair a NAD 7030, but unfortunately, the 7045 is different !
But documentation was useful.
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Content A4 and A3 format pages. Exactly what I needed to restore my old receiver.
Pin No. 75 76 77, 78 79 80
Pin Name NC BU-IN NC KEYACK TEL-ATT
I/O O I O I I Not used (open)
Function Battery detect signal input from the SONY bus interface (IC600) and battery detect circuit �L� is input at low voltage Not used (open) Input of acknowledge signal for the key entry Acknowledge signal is input to accept function and eject keys in the power off status On at input of �H� Telephone muting signal input terminal At input of �H�, the signal is attenuated by �20 dB Used for the MDX-C5970/C5970R only (MDX-C5960R: fixed at �H�) FM stereo broadcasting detection signal input from the FM/AM tuner unit (TU1), or forced monaural control signal output to the FM/AM tuner unit (TU1) �L� is input in the FM stereo mode, or �L� is output in the forced monaural mode Seek control signal output to the FM/AM tuner unit (TU1) AM mode: Used for IF count output/SD output request/AGC cut at SEEK or BTM FM mode: Used for SD speed up at SEEK, BTM, or AF �L� is output at tuner off Station detector detect input from the FM/AM tuner unit (TU1) Stop level for SEEK, BTM, etc. is determined SD is present at input of �H� Not used (open) PLL serial chip enable signal output terminal Not used (open) Hardware standby input terminal �L�: hardware standby mode Reset signal input in this set Setting terminal for the CPU operational mode (fixed at �L� in this set) Setting terminal for the CPU operational mode (fixed at �H� in this set) Setting terminal for the CPU operational mode (fixed at �H� in this set) System reset signal input from the reset signal generator (IC801) and reset switch (S900) �L�: reset �L� is input for several 100 msec after power on, then it changes to �H� Ground terminal Main system clock input terminal (3.68 MHz) Main system clock output terminal (3.68 MHz) Power supply terminal (+5V) Power select switch input terminal �L�: off (halt mode), �H�: on (operation mode) Not used (open) Polar monaural detection signal input terminal Not used (open) Not used (open) Frequency select switch (S701) input terminal �L�: MW10k step/FM 200k step, �H�: MW 9k step/FM 50k step Used for the E model only (Except E models: fixed at �H�) Not used (open) Internal RAM reset detection signal input from the RN5VD23AA (IC802) Input terminal to check that RAM data are not destroyed due to low voltage This checking is made within 100 msec after reset Not used (open) Chip enable signal output to the liquid crystal display driver (IC801) �H� active Internal flash memory data write mode detection signal input terminal �L�: data write mode Not used (fixed at �H� in this set) Dial pulse input of the rotary encoder (EN801) (for VOLUME/BASS/TREBLE/BALANCE/FADER control) Power on/off control signal output of the illumination LED and liquid crystal display driver (IC801) �H�: power on Main system power supply on/off control signal output to the BA3918 (IC800) �H�: power on FM system power supply on/off control signal output to the BA3918 (IC800) �L�: AM power on, �H�: FM power on
81
ST-MONO
I/O
82
SEEKOUT
O
83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 to 99 100 101 102 103 104 105 106 107 108 109 110
SD-IN MONO PLL CE HSTX MD2 MD1 MD0 RESET VSS X0 X1 VCC POW-SEL POL MONO NC BAND (9K-10K) NC RAMBU NC LCD CE FLASH-W RE-IN0 RE-IN1 LAMP ON (ILL ON) PW-ON FM-ON
I O O I I I I I � I O � I I O I O I O O I I I O O O
� 70 �
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