Teac D-70 Bedienungsanleitung
DD--7700
SERVICE MANUAL
Multi D/A Converter
Effective : October, 2002 S-0077A
CONTENTS
1 SPECIFICATIONS ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・2
2 ADJUSTMENTS AND CHECKS ・・・・・・・・・・・・・・・・・・・・・・・・3
3 EXPLODED VIEWS AND PARTS LIST ・・・・・・・・・・・・・・・・・5
4 PC BOARDS AND PARTS LIST ・・・・・・・・・・・・・・・・・・・・・・・・9
5 INCLUDED ACCESSORIES ・・・・・・・・・・・・・・・・・・・・・・・・・・・17
NOTES
●PC boards shown are viewed from parts side.
●Parts marked with * require longer delivery time.
●The parts with no reference number or no parts number in the
exploded views are not supplied.
●As regards the resistors and capacitors, refer to the circuit diagrams
contained in this manual.
●£Parts marked with this sign are safety critical components. They
must be replaced with identical components - refer to the appropriate
parts list and ensure exact replacement.
●Parts of [ ] mark can be used only with the version designated.
[US]:U.S.A.[C]:CANADA[E]:EUROPE
−2−
331mm
369mm
465mm
162mm
1 SPECIFICATIONS
Electrical characteristics (at 24bit/44.1kHz input)
Frequency response ........................................20Hz-20kHz ±0.3dB
S/N ratio ..............................................................................116dB
Dynamic range......................................................................108dB
THD ..................................................................................0.0025%
Channel separation ..............................................................115dB
Valid sampling frequencies (kHz)
32, 44.1, 48, 88.2, 96, 176.4, 192 (each ±1%)
Sampling frequencies (kHz) corresponding to de-emphasis
32, 44.1, 48
Input levels
TOS x 3 ........................–24 to –14.5dBm peak (λ:700nm typical)
SPDIF x 3 ........................................................0.5 Vp-p±0.1V/75Ω
XLR x 2 ..........................................................5.0Vp-p±0.1V/110Ω
Output levels
Analog outputs
RCA x 1 system............................................2.20Vrms±0.1V/47kΩ
XLR x 1 system............................................2.20Vrms±0.1V/600Ω
Digital output
TOS x 1............................................................-21 to -15dBm peak
WORD SYNC output
BNC x 2 ..........................................................................TTL / 75Ω
General
Power supply ................................AC 230V, 50Hz (Europe model)
AC 120V, 60Hz (U.S.A./Canada model)
AC 220V, 60Hz (Korea model)
Power consumption ..............................................................26W
Dimensions (WxHxD)..................................465 x 162 x 369 (mm)
Weight..........................................................................about 25 kg
Remote control unit
Type..............................................................Infrared pulse system
Battery..........................................DC3V (AA batteries, SUM-3 x 2)
Dimensions (WxHxD) ....................................57 x 21 x 216 (mm)
Weight..........................................about 320g (including batteries)
Accessories
Power cord x 1
Remote Control Unit x 1
Batteries (AA, SUM-3) x 2
Felt x 3
Warranty card x 1
Owner's manual x 1
Improvements may result in specification or feature changes
without notice.
2-2 Audio System
Setting
CLOCK MODE: PLL
AES3 INPUT: SINGLE
DIGITAL FILTER: FIR
DIGITAL IN: Fs=44.1kHz, FullBit
●If you intend to use a digital output of the P-70 or others for
connection to the digital input, use a digital signal that is not
upconverted.
2-2-1 DC Offset Adjustment
1. Set the OUTPUT SELECT switch on the rear panel to "XLR".
2. Apply a digital signal to the DIGITAL IN and check to see that
the input indicator turns on and that a sampling frequency
shows in the display. (Check of the lock status.)
3. Turn the OUTPUT LEVEL control counterclockwise, so that the
output level is –∞(as shown by "___._" in the display).
4. Measure the DC offset voltage between pins 2 (+) and 3 (–) of
LINE OUT (XLR). Adjust VR303 (L) and VR403 (R) on ANALOG
PCB for ±5mV.
−3−
VR403 VR303
ANALOG PCB
XLRピン番号
2 ADJUSTMENTS AND CHECKS
2-1 Test Mode
2-1-1 Getting into Test Mode
While holding down the INPUT SELECTOR ＜and ＞buttons,
power on the unit and hit the DIGITAL FILTER button repeatedly.
2-1-2 Version Display
When the test mode is activated, the microcomputer version
information, "uComVer X.XX", is displayed. Then, at each
press of the INPUT SELECTOR ＞button, the RDOT version
information, "RDOTver XXXX", and the RAM version
information, "RAMversionXX", are displayed in sequence.
2-1-3 FL Grid Check
After displaying a series of version information, pressing the
INPUT SELECTOR ＞button activates the grid check mode and
the display reads "GridChecking". Turn the OUTPUT LEVEL
control to check to see that the grids turn off one after another.
Continue to turn the OUTPUT LEVEL control to check to see that
the grids turn on one after another.
2-1-4 FL Segment Check
When the FL grid check is done with, press the INPUT SELECTOR
＞button to activate the segment check mode. Turn the OUTPUT
LEVEL control to check to see that the dot matrix turns on by dot.
2-1-5 LED Check
When the FL segment check is done with, press the INPUT
SELECTOR ＞button to activate the LED check mode. The display
reads "LEDCHECK RDT". Turn the OUTPUT LEVEL control to
check to see that each LED turns on.
2-1-6 Resetting EEPROM
When the LED check is done with, press the INPUT SELECTOR ＞
button and "! EEPRESET !" is displayed. Press the DIGITAL
FILTER button and the display changes to read "EEPSAVE
OK" and the ROM is reset.
XLR pin assignments
−4−
2-2-2 Output level check
1. Connect the AC voltmeter to the LINE OUT.
2. Play the track 2 (1kHz, 0dB) of the MCD-111, and check the
output level.
Specifications: 2.2±0.2Vrms (100kΩload, RCA)
4.4±0.2Vrms (100kΩload, XLR)
2-2-3 Distortion check
1. Connect the distortion meter to the LINE OUT.
2. Play the track 2 (1kHz, 0dB) of the MCD-111, and check the
distortion.
Specification: 0.005% or less (400Hz HPF ＋20kHz LPF)
2-2-4 Frequency response check
1. Play the track 3-6 (20Hz – 20kHz, 0dB) of the MCD-111, and
check that output level are within the specified values with
respect to the 1kHz reference level.
Specifications: 20Hz – 20kHz, 0±1dB (FIR mode)
20Hz – 20kHz, 0±1dB (CUSTOM mode)
20kHz, –3±1dB (RDOT mode)
●The DIGITAL FILTER button cycles through the following
modes:
2-2-5 S/N check
1. Play the track 7 (non-signal) of the MCD-111, and check that
noise level are within the specified values with respect to the
1kHz reference level.
Specification: 100dB or more (IEC-A)
2-2-6 Channel separation check
1. Play the track 8 (L:1kHz / R:non-signal) of the MCD-111, and
check the leakage from Lch to Rch.
2. In the same way, play the track 10 (R:1kHz / L:non-signal) of
the MCD-111, and check the leakage from Rch to Lch.
Specification: 100dB or more (IEC-A)
RDOT FIR CUSTOM
EXPLODED VIEW-1
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3 EXPLODED VIEWS AND PARTS LIST
−6−
EXPLODED VIEW-1
REF.NO. PARTSNO. DESCRIPTION REMARKS
1‑1 * M00941100A TOPPANEL
1‑2 M00260101A COLLAR,SCREW(S)
1‑3 M00260100A COLLAR,SCREW(L)
1‑4 * M00940501A SIDEPANEL,L
1‑5 * M00940601A SIDEPANEL,R
1‑6 * M00940800A ENDCAP
1‑7 * M00940700A FRONTPANEL,CAP
1‑8 * M00942900A BRACKET,CAPL
1‑9 * E95133800A PCBASSY,TOGGLED
1‑10 * M01379700A BRACKET,PCBLED
1‑11 M00481000A LENS
1‑12 * M00409500A HOLDER,BUTTON(A)
1‑13 * 5801070200 PWRSPR
1‑14 M00941500A BUTTONASSY,POWER
1‑15 * M01380700A PLATE,BUTTON
1‑16 M00701600A CPRSNSPRING,BUTTON
1‑17 M01379900A ESCUTCHEON,BTTN
1‑18 M01379800A BUTTON,D5
1‑19 * M01380800A COVER,FL
1‑20 * M01378400A PANEL,SUB
1‑21 * M01254700A FILTER
1‑22 * M01380300A SPACER,LENS
1‑23 * M01380200A HOLDER,LENS
1‑24 * M01380100A HOLDER,BUTTON
1‑25 * M00404600A CPRSNSPRING,KNOB
1‑26 M00393102A BUTTONASSY,D=8BR
1‑27 M01380000A ESCUTCHEON,FRONT
1‑28 * 5801533720 NAMEPLATE,TEAC(BLK.BLK)
1‑29 * M01383200A FRONTPANEL
1‑30 M01380400A KNOB,D44
1‑31 * M01517901A CHASSIS,BASE
1‑32 M01494801A FOOT(A),HEX21
1‑33 M00689100A CUSHION,TRAY
1‑34 M01494900A FOOT(B)
1‑35 M01495000A STAND,FOOT
1‑41 * 5801539500 SCREW,HEXAGON3X8BLACK
1‑42 * B00023000A SCREW,HEXAGON3X17.5BLACK
1‑43 * 5780023005 SCREW,BPA3X5NB
1‑44 * 5783033006 SCREW,S‑TITEBINDM3X6
1‑45 * 5780023006 SCREW,BPA3X6NB
1‑46 * 5783533008 SCREW,BPB3X8NB
1‑47 * 5786002500 ERING,E‑2.5(JIS)
1‑48 * 5780023008 SCREW,BPA3X8NB
1‑49 * B00090900A SCREW,VPBR3X8FNB
1‑50 * 5783113006 SCREW,ZPAT3X6NB
1‑51 * B00091000A SCREW,VPBR3X10FNB
EXPLODED VIEW-2
−7−
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−8−
EXPLODED VIEW-2
REF.NO. PARTSNO. DESCRIPTION REMARKS
2‑1 * M01378500B REARPANEL
2‑2 * M00289000A SHIELDSHEET
2‑3 * M00689100A CUSHION,TRAY
2‑4 * 5332031900 EARTHTERMINALM3
2‑5 * M01396100A COVER,PLATE1394RESERVED
2‑6 * E95134300A PCBASSY,INLET
2‑7 * M00943200A PLATE,EMIFILTER
2‑8 E95133900A PCBASSY,BALSW
2‑9 E95133500A PCBASSY,DIGITAL
2‑10 E00699400A FLATCABLE,DIGI‑FRONT
2‑11 E00699300A FLATCABLE,DIGI‑ANA
2‑12 E95134100A PCBASSY,PWRANA[US,C]
E95134150A PCBASSY,PWRANA[E]
2‑13 * M01379500A SHIELDPLATE,L
2‑14 E95134200A PCBASSY,PWSW
2‑15 * M01379000A FRAME,B
2‑16 * M00752100A RUBBERSHEET,ICT0.7
2‑17 * M01431500A HEATSINK,L
2‑18 E95134000A PCBASSY,PWRDIGI[US,C]
E95134050A PCBASSY,PWRDIGI[E]
2‑19 * M01379600A SHIELDPLATE,R
2‑20 E95134400A PCBASSY,WORD
2‑21 * 5730041200 INSULRING,IU‑7/16
2‑22 * M01385100A BRACKET,SHLDPLT
2‑23 * M01378700A CHASSIS,SIDEL
2‑24 * M01379200A CHASSIS,CENTERL
2‑25£E00690220A POWERTRANSFORMER,ANALOG[US,C]
£E00690250A POWERTRANSFORMER,ANALOG[E]
2‑26£E00690120A POWERTRANSFORMER,DIGITAL[US,C]
£E00690150A POWERTRANSFORMER,DIGITAL[E]
2‑27 * M01385000A SHIELDPLATE,CASSY
2‑28 * M01378900A FRAME,A
2‑29 * M01379300A CHASSIS,CENTERR
2‑30 * M01378800A CHASSIS,SIDER
2‑31 * M01379100A FRAME,C
2‑32 * M01378600A CHASSIS,FRONT
2‑33 E95133700A PCBASSY,FRONT
2‑34 E95133600A PCBASSY,ANALOG
2‑41 * B00091000A SCREW,VPBR3X10FNB
2‑42 * 5781702606 SCREW,HEXAGONM2.6X6(NI)
2‑43 * 5730036400 SCREW,CLAWBINDM3X8(BLK)
2‑44 * 5783613008 SCREW,VPCR3X8NB
2‑45 * 5783543008 SCREW,P‑TITEBINDM3X8NB
2‑46 * 5780023008 SCREW,BPA3X8NB
2‑47 * 5780023006 SCREW,BPA3X6NB
2‑48 * 5783533008 SCREW,BPB3X8NB
2‑49 * 5783012006 SCREW,PPB2X6ZC
2‑50 * B00100800A SCREW,PPSB4X10FZC
−9−
DIGITAL PCB
This PCB is a four-layered board.
4 PC BOARDS AND PARTS LIST
−10−
ANALOG PCB
This PCB is a four-layered board.
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