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Hard to find manual was ready the next day. Scans were very legible (including schematics). All the essential parts of the service manual were present (adjustment procedure, schematics, and parts list). It would have been nice if the rest of the manual was included (disassembly procedure, theory of operation, etc.).
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The Service Manual for the Kenwood KR-V55R provided by owner-manuals.com was as described/advertised. The contents provided the necessary information to effect a diagnosis of the unit. The schematics above all else was instrumental in tracing the the signal flow from component to component.
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This manual was the factory original. Excellent value and contained all the details I needed. Easy dowwnload provided the information when I needed it.
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Impeccable, document très complet. Perfect, i get all i need. All schematic are correct. Thanks
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The manual is of better quality compared to other. I found it less expensive and therefore it it is the best buy cost vs quality.
DPX-3030/MP4030
MICROCOMPUTER�S TERMINAL DESCRIPTION
Pin No. Pin Name 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 I2C-SDA NC I2C-SCL DMA-SCL DMA-SDA JS TYPE1 JS TYPE2 /CD/MP3 TYPE1 TYPE2 TYPE3 MS-MODE C-F/R /MTL C-MUTE DOLBY /MS IN PLL CE PLL DI PLL DO PLL CLK /SD/ST-IND CD-SW2 CD-SW1 /CD-MUTE-L /CD-RST /CD-STOP CD-SW4 CD-SW3 CD-LO/EJ CD-LMON /AMP-MUTE AMP-SVR /AMP-STBY DSP-DATA DSP-STB DSP-CLK SA-MUTE I/O I/O O I/O I/O I/O I I I I I I O O O O O I O I O O I I I I O O I I I/O O O O O O O O O Purpose / Description Control of CD mechanism Control of CD mechanism Control of input/output clock for external ROM Control of input/output data for external ROM Mode change of Chastity model or on the market model Mode change of Chastity model or on the market model Mode change for destination Mode change for destination Mode change for destination Mode change for destination Blank detection mode control of TAPE function Playback head switching control output terminal Playback equalizer control Muting for cassette Dolby NR SW Blank detection input terminal Control of PLL IC Control of PLL IC Control of PLL IC Control of PLL IC F/E SD, ST-IND input terminal Control of CD mechanism Control of CD mechanism Control of CD mechanism System reset output terminal Control of CD mechanism (for CD STOP mode) Control of CD mechanism Control of CD mechanism Control of CD mechanism Control of CD mechanism Control of power pack IC for muting mode Control of power pack IC for SVR mode Control of power pack IC for standby mode Control of DSP Control of DSP Control of DSP Muting for spectrum analyzer input signal Processing Operation E VOL and E2P ROM input / output data for CD mechanism Connected to GND E VOL and E2P ROM input / output clock signal for CD mechanism NC NC L : On the market model L : On the market model L : DPX-3030 H : DPX-MP4030 L : M type H : K type L : K type H : M type L : ALL MODEL L : FF/REW H : PLAY (to IC201, 20PIN) L : FORWARD H : REVERES (to IC201, 19PIN) L : 70usec H : 120usec L : MUTE OFF H : MUTE ON (to IC201, 17PIN) L : NR OFF H : NR ON (to IC201, 16PIN) Blanc of music : H found in music : L (from IC201, 14PIN) CE signal output for PLL IC (to IC151, 2PIN) Data signal input form PLL IC (to IC151, 5PIN) Data signal output for PLL IC (to IC151, 3PIN) Clock signal output for PLL IC (to IC151, 5PIN) SEEK function H : receive the radio station, Tuner mode H : MONO L : Stereo 12cm DISC EJ END detection form CD mechanism LOADING START SW detection form CD mechanism Control of muting signal from CD mechanism L : RESET H : PLAY L : STOP Detection of 8cmDISC EJ END SW input (form CD mechanism) Detection of down limit SW input (form CD mechanism) LO/EJ SW input/output control signal (from CD mechanism) To motor driver SW output L : MUTE ON (to IC501 : 22PIN) Control of pop noise for Power pack IC (power ON/OFF function) L : Standby H : AMP ON (to IC501, 4PIN) Data output for DSP IC (to IC331, 5PIN) Strobe signal for DSP IC (to IC331, 4PIN) Clock signal for DSP IC (tor IC331, 3PIN) NC
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