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For Europe model
Ver. 1
SERVICE MANUAL
MODEL DCD-1500AE
SUPER AUDIO CD PLAYER
For purposes of improvement, specifications and
design are subject to change without notice.
Please use this service manual with referring to the
operating instructions without fail.
Some illustrations using in this service manual are
slightly different from the actual set.
TOKYO, JAPAN
Denon Brand Company, D&M Holdings Inc.
X0243 V.01 DE/CDM 0508
DCD-1500AE
SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
LEAKAGE CURRENT CHECK
Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the
power cord is less than 460 kohms, the unit is defective.
LASER RADIATION
Do not stare into beam or view directly with optical instruments, class 3A laser product.
2
DCD-1500AE
DISASSEMBLY
(Follow the procedure below in reverse order when
reassembling.)
1. Top Cover
(1) Remove 8 top and side screws. And remove 2 rear
screws, then detach the Top cover.
2. Front Panel Ass'y
(1) Detach the Loader panel Ass'y by lifting.
(2) Remove 4 top screws and 2 bottom screws of Front
Panel Ass'y.
(3) Remove H/P BRACKET and CHASSIS screw, then
detach the Front Panel Ass'y.
(Refer to Fig. 1)
Fig. 1
3
DCD-1500AE
3. Mechanism
(1) Remove 4 screws, then detach the Mechanism.
4. Attachment of Mechanism
(1) Mechanism is put on MECHA BRACKET BOTTOM.
(2) ADJUST.COLLAR is put on 2 places of the front.
(3) 2 front side screws are tightened.
(4) 2 rear side screws are tightened.
ADJUST. COLLAR
MECHA BRACKET BOTTOM
5. Attachment of Mechanism
Follow the procedure below.
(1) 1 screw of volume side is tightened.
(2) 1 screw of H/P jack side is tightened.
(3) (4) 2 screws of H/P jack top is tightened.
1 3 4 2
(Note) When assembling the volume pwb and the bracket,
insert thickness 1.6mm board between the bracket
and volume.
4
DCD-1500AE
Note Handling and Replacement of the
Laser pick-up
1. Disassembly
Do not disassemble or adjust this mechanism due to preci-
sion component.
2. Storage
Do not leave this mechanism in high temperature and hu-
midity. Be sure to prevent this mechanism from static elec-
tricity, dust and excessive forces.
Do not leave this mechanism without a unti-static cover for
the dust.
3. Handling
Do not shock to this mechanism.
Don't touch the parts as follows.To touch them may cause
big trouble.
Trim-potentionmeter
CD laser dode and Fixate of CD laser
Fixate plate of OEIC
High frequency module and DVD laser diode
Objective
Actuator (Include screw, spring, and connected point
actuator and PWB)
The laser diode soldering portion of and is sharp,
be careful especially because it is dangerous.
5
DCD-1500AE
Never touch the objective lens, actuator, laser diode, photo
detector and the trim-potentiometer.
Be sure no dust or soil on the objective lens.
If dust is on the objective lens, below it away by clean air.
If dust or soil remain on the objective lens, use the cleaning
liquid (B4) made by JCB INDUSTRY Ltd. No alternative.
Make sure that a person who handles this mechanism is
well earthed. Be sure to earth to the manufacturing equip-
ment.
Do not approach magnetic materials.
Too much forces on the leads of laser diode, OEIC, and the
printed wiring board, may caused the pickup to damage.
Too much forces on the leads of laser diode, OEIC, and the
printed wiring board, may caused the pickup to damage.
Guide shafts in mechanism should not be forced when you
set the FFC to the connector, which may cause the guide
shafts to deform.
4. Surrounding atmosphere
For proper operation storage and operating environment
should not contain corrosive gases. For example HS2, SO2,
NO2, Cl2 ets. In addition storage environment should not
have materials that emit corrosive gases especially from si-
licic, cyanic, formalin and phenol group. In the mechanism
or set, existence of corrosive gases may cause no rotation
in motor.
5. Laser drive circuit
We solder the Short land on PWB before shipment to pro-
tect laser diode. Open the short landsafte you connect
pick-up your circuit by flat cable. (Refer to Fig. a)
When you unstrap the short solder for the laser diode pro-
tection in the condition which doesn't connect by a flat ca-
ble, the laser diode and PEIC may destroy by static
electricity.
6
DCD-1500AE
DIAGNOSTICS OF OPTICAL PICKUP
AND REPLACING TRAVERSE UNIT
Make failure diagnostics of the Optical Pickup as follows.
If the laser drive current (Iop) becomes more than 1.5 times of
the initial value, the Optical Pickup should be replaced.
The laser drive current is registered on the seal attached to
the rear of the Mecha.Unit.
In case of replacing the Pickup, change the whole part of the
Traverse Unit.
No mechanical adjustment is necessary after the replace-
ment.
Disc no read,unsteady playback, etc.
Laser drive current (Iop) check
HF wave form check
(Refer to page 73)
Present value exceeds the ini-
tial value by 1.5 times
Traverse Unit replacing
(See page 8 for details)
Laser current registering after replacement.
Step: Disc playback
Write the measured value on the seal attached to the
Mecha. Unit
*As to the measuring method, refer to page 8,9.
7
DCD-1500AE
1. Label Indication of SACD Mechanism.
Example: DVD 30mA
CD 30mA
2. Note for Handling the Laser Pick-Up
the protection for the damage of laser diode.
If you want to change the optical device unit from any other
units, you must keep the following.
(1) It should be done at the desk already took measures the
static electricity in care of removing the OPU's (Optical
device unit) connector cable.
(2) Workers should be put on the "Earth Band".
(3) It should be done to add the solder to the short land to
prevent the broken Laser diode before removing the 24P
FFC cable.
(4) Don't touch OPU's connector parts carelessly.
3. Replacement of the Laser Pick-up
(Traverse Unit)
Check the Iop(Laser drive current)
If the present Iop (current) value exceeds.+50% of the ini-
tial value, replace the Traverse unit(Laser Pick-up) with a
new one.
4. Iop Measurement Method
When measuring Laser drive current (Iop), playback the
discs (CD,SACD) described below, measure Iop for CD
Laser and DVD Laser by the test point (+5V-M2~
LD(CD),LD(DVD))on the SACD P.W.B.
Test Disc :SACD/Philips DAC Test Disc or commercially
available discs.
:CD/TCD-784 (manufactured by ALMEDIO INC)
or commercially available discs.
8
DCD-1500AE
4.1. DVD Laser current measurement
LD(DVD) LD(DVD)
+5V-M2 +5V-M2
Oscilloscope Oscilloscope
(1) Connect the oscilloscope to +5V-M2 of test point for GND
side and LD(DVD) of test point for signal side.
(2) Playback the stereolayer track 1 of the SACD Test Disc.
(3) Measure the voltage between +5V-M2 and LD(DVD), cal-
culate Iop by the formula as shown below.
Measurement Voltage Value
Iop = ----------------------------------------------------------------------------
-
14 (Resistance value)
4.2. CD Laser current measurement
(1) Connect the oscilloscope to +5V-M2 of test point for
GND side and LD(CD) of test point for signal side.
(2) Playback the track 1 of the CD Test Disc.
(3) Measure the voltage between +5V-M2 and LD(CD), cal-
culate Iop by the formula as shown below.
Measurement Voltage Value
Iop = ----------------------------------------------------------------------------
-
11.75 (Resistance value)
LD (CD)
LD (DVD)
+5V-M2
1U-3624 SACD MODULE P.W.B. unit foil side
9
DCD-1500AE
HOW TO REPLACE TRAVERSE UNIT
Caution: The optical pickup can be damaged easily by
static electricity charged on human body.
Take necessary anti-static measures when
repairing around the optical pickup.
1. Guide Clamp Bracket disassembly
(1) Remove 2 screws.
(2) Remove Guide Clamp Bracket to arrow direction.
2. Tray disassembly
(1) Remove to arrow direction.
(2) Solder the short-circuit (see in the frame).
10
DCD-1500AE
3. Traverse Unit disassembly
(1) Remove 24P FFC, 15P FFC and 5P PH WIRE connect-
ing with from the Main P.W.B.
(2) Remove 4 screws fixing Damper.
(3) Remove Traverse Unit to arrow direction.
Note for disassembly Traverse Unit
(1) When assembling, reverse the order of the above.
(2) When inserting Tray, confirm boss on Slide Cam set to
ditch of the Tray (Compare with below drawing).
11
OPEN/CLOSE+PLAY+AC_ON
H.R.NORMAL operation Model Name display
TOC read playback PLAY
(DCD-1500)
title-all of the disc.
OPEN CLOSE A.S.FWD or A.S.RVS
TOC read
A.S.FWD B/E µcom A.S.FWD F/E µcom
It displats repeatedly. H.R.NORMAL display
Ver.display Ver.display
PLAY A.S.RVS A.S.RVS
STOP+A.S.RVS
A.S.FWD A.S.RVS A.S.FWD
H.R.SHORT operation
A.S.RVS
CD TEST MODE & SERVICE MODE
STOP+A.S.RVS STOP+A.S.RVS
TOC read playback
title-all of the disc.
H.R.SHORT display TEST Mode
OPEN CLOSE
12
STOP+A.S.RVS
TOC read PLAY
STOP+A.S.RVS
It displats repeatedly.
A.S.FWD
A.S.RVS STOP+A.S.RVS STOP+A.S.RVS
FL tube A.S.FWD FL all light
H.R.CHACKING operation The display for each grit.
H.R.CHACKING display
A.S.RVS (It displays at intervals A.S.RVS
TOC read OPEN
of 1 second.)
CLOSE TOC read PLAY
It displats repeatedly. A.S.FWD
Key & Remocon input mode display
The name of the inputted key and
remote control code is displayed.
DCD-1500AE
DCD-1500AE
SETTING UP THE TEST MODE
(1) Setting up
· In order to set up the test mode, you press STOP button
and REV button simultaneously in the heat-run mode.Fun-
damentaly, you can set up the test mode at the stop state
after disc loading. (Heat-run mode is set up by pressing
PLAY button,holding OPEN/CLOSE button. If it becomes
heat run mode, PLAY indicator and PAUSE indicator will
light up.)
LOADING display
FL display (The display part of 13 digits)
(2) Mode Select
· There are two, servo adjustment value display mode and
trace mode (error rate display), in the mode.
(a) If the REV button or the FWD button is pushed in the test
mode, it will become servo adjustment value display
mode.
FL display (The display part of 13 digits)
(b) If the REV button or the FWD button is pushed again, it
will become the trace mode (error rate display).
FL display (The display part of 13 digits)
(3) Mode decision
· The mode will be decided if the PLAY button is pushed in
the state where the mode is chosen.
(a) In the case of servo adjustment value display mode, a fo-
cus offset adjustment value is displayed.
FL display (The display part of 13 digits)
(n:adjustment value)
(b) In the case of trace mode (error rate display), trace of the
circumference in one layer is chosen.
FL display (The display part of 13 digits)
(F: An address and an error rate display F at the time of undecided.)
(4) Change within the mode
· If the REV button or the FWD button is pushed in the state
where the mode is decided, a change within the mode will
be made.
(a) In the case of servo adjustment value display mode (re-
fer to table 1 servo adjustment value display mode de-
tails)
FL display (The display part of 13 digits)
(XX:selection mode [31--62] n:adjustment value)
13
DCD-1500AE
(b) In the case of trace mode (error rate display) (refer to ta-
ble 2 trace mode details)
FL display (The display part of 13 digits)
(YY: select mode [71--94] ,F: address and an error rate display F at the
time of undecided)
(5) Execution of trace mode (error rate display)
(refer to table 2 trace mode details)
· Trace will be performed if the PLAY button is pushed after
choosing operation.
FL display (The display part of 13 digits)
(YY:select mode[71--94],m:address[PBA][HEX],
l:error rate[COUNT/SEC][HEX])
(Note) Renewal of data is carried out for every CD:300 frame and
DVD:85ECC block.
· The mode chosen when selection mode was changed into
the trace execution and the PLAY button was pushed is
performed from the beginning.When the PLAY button is
pushed without changing selection mode, the mode under
selection is performed from the beginning.(If the PLAY but-
ton is pushed, the address corresponding to the chosen
mode will be searched again.)
(6) Other operation
(a) If the STOP button is pushed into servo adjustment val-
ue display mode and trace mode (error rate display), it
will return to the state at the time of a test mode injection.
FL display (The display part of 13 digits)
(b) Push the OPEN/CLOSE button twice and carry out ser-
vo readjustment in OPEN operation ->CLOSE opera-
tion.
(It readjusts with test mode.)
OPEN display
CLOSE display
LOADING display
FL display (The display part of 13 digits)
(c) By pressing STOP button and REV button simulta-
neously in the test mode, it returns to heat-run mode.
14
DCD-1500AE
(7) Test mode detailed table
Table 1: servo adjustment value display mode details
15
DCD-1500AE
-
-
-
-
-
-
-
16
DCD-1500AE
Table 2: trace mode details
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
17
DCD-1500AE
Table 3:
Table 4:
Table 5: HEAT RUN ERROR CODE
No Error contents FL Display
1 Tray Error ( Back End ) E1 **** ( Back End ) E1 ****
2 Bad Disc E2 **** E2 ****
3 Focus Error E2 **** E2 ****
4 Read Error E2 **** E2 ****
5 Tracking Error E4 **** E4 ****
6 Tray Error (Front End ) E5 **** (Front End ) E5 ****
7 Navigation Pack Read Error E6 **** E6 ****
8 Communication Error E7 **** E7 ****
9 No Disc NO DISC **** NO DISC ****
(**** ; umber of times to error generating. ) (**** ; )
18
DCD-SA11
BLOCK DIAGRAM
CX051 CY051
CX035 5P-PH 5P-PH
GND_A
7812 (1)+16V_MU
(2)GND_RL
(1)+16V_MU
(2)GND_RL 1U-3713-1
CX023 7912 (3)+12V_A
(4)GND_A
(3)+12V_A
(4)GND_A AUDIO UNIT
(BLK) (5) 12V_A (5) 12V_A
GND_D
7805 BD9702 CX041 CY041 BA033 +3.3V_D1
CX024 2412 4P-PH 4P-PH 7805
(BLU) CX081 (1)+5V_D1 (1)+5V_D1
(2)GND_D1 (2)GND_D1
7808 (3)+5V_DO (3)+5V_DO
CX026 (4)GND_DO (4)GND_DO
(WHT)
11A121
11A121
(2)GND_DISP
(8)+12V_M1
(6)+8V_M1
(7)GND_M
(5)GND_M
(3)GND_A
(1)GND_B
(1)+5V_U BA033
(3) 32V
(4)+5V_A
(2)+5V_B
TRANS 1U-3714-2
(4)F+
(5)F
CX054 CX082 POWER UNIT +5V_D2
SO1L
CY291 +3.3V_D2 +5V_A1
SO1R
29PFFC
LRCK
(1)GND_D1 DXP6001AF
(2)PCM_DATA
PBCK DSD1791
(3)PCM_LRCK
29PFFC 27PFFC 5PZH (OPEN) (4)GND_D1
+5V_D1
(5)PCM_BCK
(9)~(7)AL_Test3/4/5
(6)GND_D1 Vout_+L
Lch
(27)PCM_LRCK
(9)~(7)AL_Test3
(28)PCM_DATA
(2)DSD_NORM
(7)DSAL
(25)PCM_BCK
(27)DIR_RST2
(26)ROM_RST
(19)DLINKCD
(12)DSD/PCM
(10)EXT_SEL
(16)DSDBCK
11A121
(6)~(1)OPEN
(8)DSAR 157
(18)DSASW
(17)DIT_CE
(14) SEL4fs
(3)AL_Test3
(4)AL_Test4
(5)AL_Test5
(4)EXT/INT
(20)DSARS
(19)DSCLK
(18)DL_ON
(21)DSALS
(6)DSRST1
(1)CD_SEL
Vout_ L
(23)SPDIF
(21)MCLK
(22)DSAR
(19)DSAC
(23)DSAL
(9)DSALS(OPEN)
(5)DSCS1
(13)RST3
(20)DSDI
(10)RST2
(29)GND
(26)GND
(24)GND
(17)GND
(15)GND
(11)GND
(3)MUT1
(24)GND
(22)GND
(20)GND
(16)GND
(25)DSDL
(11)~(15)
(2MODE
DSAL
(25)VPP
(7)GND
(1)GND
(10)DSARS(OPEN)
(11)DSAC(OPEN)
74HCT7007
DARD (24)DSDR
ANALOG OUT
(12)DSASW(OPEN)
(13)GND_D1 DBCK 64fs (1)PLRCK Vout_+R
MCLK
(14)DSDBCK
(15)GND_D1
(2)PBCK Vout_ R
Rch
16M CXD2753 (16)SEL_4fs(OPEN)
1 12
768FS (17)RST3(OPEN) MODE MODE
SDRAM (SACD Dec) (18)DSD/PCM(OPEN)
DXP_RST GAL16
GND_D1 MUT1
(19)GND_D1 (4)DBCK
GAL_RST
(20)EXTSEL(OPEN)
(21)~(23)(OPEN)
(1)+12V_M1 (24)~(29)(OPEN)
(2)GND_M PLD ucon SCK
(3)+8V_M1
(4)GND_M EPM3128 DSD_CS
(5)+5V_A +3.3V_D1 7WHCU04
M30625FGPGP DSD_RST
(6)GND_A
(7)+5V_B DSD/DXP_DI
(8)GND_B SPDIF PURE 7WHCU04 DSD/DXP_CL
CXD1885 DIRECT CY271
(F/E Prosessor) 27PFFC
33.8688MHz
74HCT7007
(1)DIR_RST2(OPEN)
(2)ROM_RST(OPEN)
Master
16M (3)VPP(OPEN)
7SHU04
CLOCK COAX OUT
(4)GND_D1
CXD1881 DRAM
1M
(5)SPDIF
(6)GND_D1 DIGITAL OUT
(RF Amp) (7)MCLK
SRAM (8)GND_D1
(9)DSD_RST OPT OUT
CX241 (10)DL_ON(OPEN) 74HCT7007
(11)DSD_CS +5V_D1
(12)GND_D1
(13)DSD/DXP_CL
CX151
FAN8042 (14)(DIR_INT(OPEN)
(15)DSD/DXP_DI
(Act Driv) (16)DIR_DO(OPEN)
DVD DRIVE MECH (17)DXP_CS
(18)RST2(OPEN)
TD-5HP-D6-DE (19)DXP_RST
AN8471 (20)DIR_DI(OPEN)
(Spi Driv) (21)GND_D1
(22)DF_RST(OPEN)
(5)REMOCON
(23)GAL_RST
(24)EXT/INT(OPEN)
(7)FRRST
(10)FDAT
1U-3624
(11)GND
(9)FCLK
(1)KEY2
(2)KEY1
(3)KEY0
CY024 (25)MUT1
(4)GND
(6)GND
(8)FCS
11P FFC (26)MODE
1U-3714-5 CX052 SACD MODULE INIT (27)GND_D1
P.SW UNIT
CY111
(11)KEY2
||
(2)FDAT
(1)GND
JUMPER 1U-3713-3 H/P UNIT CY052 CY112 CX112
(2)GND_DISP
5P-PH (11)KEY2 (1)KEY2
(1)+5V_U
H/P VR
(3) 32V
MUT1 (10)KEY1 (2)KEY1
1U-3413-4 (9)KEY0 (3)KEY0
(4)F+
H/P UNIT CY042
(5)F
(9)GND_+5V (4)GND
H/P OUT 4P-PH
(1)MUT1
(7)REMOTE
(6)GND_+5V
(5)REMOCON
(6)GND
(Remocon) (7)FRRST
(2)H/P_L (5)FRES
(3)GND_A BA330FP
FL Driver ; M66005-0001AHP (4)FCEN (8)FCS
(4)H/P_R (3)FCLK (9)FCLK
+3.3V (2)FDAT (10)FDAT
(1)GND_5V (11)GND CX042
1U-3714-1 DISPLAY UNIT 4P-PH
19
DCD-1500AE
SEMICONDUCTORS
Only major semiconductors are shown, general semiconductors etc. are omitted to list.
1. IC's
Note: Abbreviation ahead of IC No. indicates the name of P.W.B., etc.
AD : AUDIO P.W.B.
PD : POWER/DISPLAY/HP P.W.B.
SM : SACD MODULE P.W.B.
CXD1885Q (SM: IC502)
Pin Assignment
DRAM I/F PWM.FG D/A
DA3 (SLED2_TILT)
DA2 (FSCON)
DA0 (TSCON)
DA1 (SLED)
GPWM5
GPWM4
GPWM3
GPWM2
GPWM1
GPWM0