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Ver. 4
Please refer to the
MODIFICATION NOTICE.
SERVICE MANUAL
MODEL JP E3 E2 EK E2A E1C E1K EUT
S-52
S-52 DAB
WIRELESS NETWORK CD MUSIC SYSTEM
MODEL JP E3 E2 EK E2A E1C E2K EUT
S-32
WIRELESS NETWORK MUSIC SYSTEM
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.
Denon Brand Company, D&M Holdings lnc.
X0360 V.04 DE/CDM 0712
S-52/S-52DAB/S-32
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.
CAUTION Please heed the points listed below during servicing and inspection.
Heed the cautions! Inspect for safety after servicing!
Spots requiring particular attention when servicing, such as Check that all screws, parts and wires removed or discon-
the cabinet, parts, chassis, etc., have cautions indicated on nected for servicing have been put back in their original posi-
labels or seals. Be sure to heed these cautions and the cau- tions, inspect that no parts around the area that has been
tions indicated in the handling instructions. serviced have been negatively affected, conduct an insulation
check on the external metal connectors and between the
Caution concerning electric shock! blades of the power plug, and otherwise check that safety is
ensured.
(1) An AC voltage is impressed on this set, so touching inter-
nal metal parts when the set is energized could cause
(Insulation check procedure)
electric shock. Take care to avoid electric shock, by for ex-
Unplug the power cord from the power outlet, disconnect the
ample using an isolating transformer and gloves when
antenna, plugs, etc., and turn the power switch on. Using a
servicing while the set is energized, unplugging the power
500V insulation resistance tester, check that the insulation re-
cord when replacing parts, etc.
sistance between the terminals of the power plug and the ex-
(2)There are high voltage parts inside. Handle with extra care ternally exposed metal parts (antenna terminal, headphones
when the set is energized. terminal, microphone terminal, input terminal, etc.) is 1M or
greater. If it is less, the set must be inspected and repaired.
Caution concerning disassembly and assembly!
Though great care is taken when manufacturing parts from
sheet metal, there may in some rare cases be burrs on the
edges of parts which could cause injury if fingers are moved CAUTION Concerning important safety parts
across them. Use gloves to protect your hands.
Many of the electric and structural parts used in the set have
Only use designated parts! special safety properties. In most cases these properties are
difficult to distinguish by sight, and using replacement parts
The set's parts have specific safety properties (fire resis- with higher ratings (rated power and withstand voltage) does
tance, voltage resistance, etc.). For replacement parts, be not necessarily guarantee that safety performance will be pre-
sure to use parts which have the same properties. In particu- served. Parts with safety properties are indicated as shown
lar, for the important safety parts that are marked ! on wiring below on the wiring diagrams and parts lists is this service
diagrams and parts lists, be sure to use the designated parts. manual. Be sure to replace them with parts with the designat-
ed part number.
Be sure to mount parts and arrange the
wires as they were originally! (1) Schematic diagrams ... Indicated by the ! mark.
For safety reasons, some parts use tape, tubes or other insu- (2) Parts lists ... Indicated by the ! mark.
lating materials, and some parts are mounted away from the
Using parts other than the designated parts
surface of printed circuit boards. Care is also taken with the
could result in electric shock, fires or other
positions of the wires inside and clamps are used to keep
dangerous situations.
wires away from heating and high voltage parts, so be sure to
set everything back as it was originally.
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S-52/S-52DAB/S-32
DIMENSION
S-52/S-32
3
S-52/S-52DAB/S-32
WIRE ARRANGEMENT
If wire bundles are untied or moved to perform adjustment or
parts replacement etc., be sure to rearrange them neatly as
they were originally bundled or placed afterward.
Otherwise, incorrect arrangement can be a cause of noise
generation.
1. MAIN UNIT
a,Fasten the CX111 11P PH-PH CON.CORD and CX051 5P
PH-PH CON.CORD to the circuit board with a style pin and
clamp band.(S-52E3/E2/JP,S-32E3/E2)
b,Fasten the CX111 11P PH-PH CON.CORD and CX051 5P
PH-PH CON.CORD, CX081 8P PH-PH SHIELD CORD to
the circuit board with a style pin and clamp band.(S-
52DABEK)
Fasten the 9P PH-PN SHIELD CORD to the circuit board
with a style pin, and arrange the wire along the SIDE
BRACKET.
CX051 CX051
CX111
CX111
CX081
CX091 a CX091 b
S-52E3/E2/JP,S-32E3/E2 S-52DABEK
Fasten the CY064 6P ZH-ZH CON.CORD to the circuit
board with a style pin.
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S-52/S-52DAB/S-32
2. SIDE BRACKET(R)
Fasten the CY091 9P PH- PH SHIELD CORD on the H/P
PORTBLE IN UNIT to the SIDE BRACKET (R) with a cord
holder
3. SIDE BRACKET(L)
Fasten the CY051 5P PH- PH CON. CORD on the USB
TERM. UNIT to the SIDE BRACKET (L) with a cord hold-
er.(S-52)
Fasten the CY051 5P PH- PH CON. CORD on the USB-
TERM. UNIT to the SIDE BRACKET (L) with a clamp
band.(S-52)
5
S-52/S-52DAB/S-32
4. FERRITE CLAMP102010N
Coil and lock the primary side code of the power transformer
with FERRITE CLAMP opened, then paste the EMIFILTER
CUSHION to outer.
Fasten the FERRITE CLAMP to the EMIFILTER CUSHION
with a clamp band .
5. POWER UNIT & POWER AMP UNIT
Fasten the CY062 6P PH-PH SHIELD CORD and CX032 3P
ZH-SAN CON.CORD and CY061 6P PH-PH CON.CORD
and CX021 1P SAN EH CON.CORD and CX063 secondary
side code of Power trans with a style pin.
Fasten the CY041 4P PH-PH CON. CORD with a style pin.
6
S-52/S-52DAB/S-32
DISASSEMBLY
(Follow the procedure below in reverse order when reassem-
bling.)
1. BOTTOM COVER & SPEAKER BLOCK
(1) Remove the 2 screws 107 on the bottom side.
(2) Detach the COVER PLATE in the direction of the arrow.
(3) Disconnect the 4P VH CON.CORD from the [CY042] on
the POWER AMP UNIT.
107
Cover Plate
4P VH CON.CORD
(4) Remove the 8 screws 106 and 6 screws 111, the 2
screws 108 on the bottom side.
(5) Detach the BOTTOM COVER & the SPEAKER BLOCK
in the direction of the arrow.
106
111
111
108
BOTTOM COVER&
SPEAKER BLCK
111
7
S-52/S-52DAB/S-32
2. SPEAKER UNIT
(1) Remove the 4 screws 109 fixing the SPEAKER BOX.
(Both left and right)
109 109
(2) Remove the wire soldered to the SPEAKER terminal.
(Both left and right)
(3) Remove the 4 screws 112 fixing the speaker, then detach
the SPEAKER in the direction of the arrow.(Both left and
right)
112
8
S-52/S-52DAB/S-32
3A.CD MECHA BLOCK(S-52)
(1) Remove the 7 screws 105 and the 1 screw 104.
105 104
105
(2) Remove the 4 screws 104.
(3) Disconnect the 9P PH-PH SHIELD CORD from the
CY091 on the H/P PORTABLE IN UNIT.
(4) Disconnect the 5P PH-PH CON.CORD from the
CY051 on the USB TERM. UNIT.
104
5P PH-PH CON.CORD
9P PH-PH SHIELD CORD
9
S-52/S-52DAB/S-32
(5) Disconnect the 9P/5P PH-PH CON.CORD in the direc-
tion of each the arrow.
(6) Lift up the CD MECHA BLOCK as shown in the photo and
disconnect the 30P FFC(1.0) from the the [CX151] on the
MAIN UNIT.
(7) Disconnect the 6P PH-PH CON.CORD from the the
[CY061] on CD MECHA UNIT.
6P PH-PH CON. CORD
30P FFC(1.0)
10
S-52/S-52DAB/S-32
3B.MAIN CHASSIS(S-32)
(1) Remove the 8 screws 105.
105
105
(2) Remove the 2 screws 104.
(3) Disconnect the 9P PH-PH SHIELD CORD from the
CY091 on the H/P PORTABLE IN UNIT.
9P PH-PH SHIELD CORD
104
11
S-52/S-52DAB/S-32
(4) Disconnect the 9P PH-PH SHIELD CORD in the direction
of the arrow A.
(5) Disconnect the MAIN CHASSIS in the direction of the ar-
row B.
.
B
A
MAIN CHASSIS
12
S-52/S-52DAB/S-32
4. 1U-3851 CD ROM UNIT(S-52)
(1) Remove each 2 screws D and E, then detach the MAIN
CHASSIS and the MECHA BRACKET in the direction of
the arrow.
E
D
MAIN CHASSIS
& MECHA BRACKET
E
D
(2) Move the Pick Up to the rear side and solder the short-
circuit, then disconnect the FFC.
Solder to short-circuit
FFC
13
S-52/S-52DAB/S-32
(3) Disconnect the 2P, 3P, 4P Wire and the FFC, then re-
move the 2 screws E.
E
FFC
3P Wire
4P Wire 2P Wire
(4) Stand the CD ROM UNIT and disconnect the FFC.
FFC
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S-52/S-52DAB/S-32
5. MAIN BLOCK
(1) Remove the 5 screws 106 and the 5 screws 108 on the
rear.
106
108
108
108
(2) Disconnect the 10P ZH-JB CON.CORD from the [CX101]
on the MAIN UNIT.
(3) Disconnect the 13P PH-PH SHIELD CORD from the
[CX131] on the MAIN UNIT.
13P PH-PH SHIELD CORD
10P ZH-JB CON. CORD
15
S-52/S-52DAB/S-32
(4) Disconnect the 16P FPC from the [CX161] on the MAIN
UNIT.
(5) Disconnect the 6P ZH-ZH CON.CORD from the [CX064]
the MAIN UNIT.
16P FPC
6P ZH-ZH CON. CORD
(6) Detach the MAIN BLOCK in the direction of the arrow.
16
S-52/S-52DAB/S-32
6A. 1U-3854 STANDBY TRANS UNIT
(for JP/E3/E2)
Remove the 1 screw 113 and the 1 screw 105 on the rear.
105 113
(2) Disconnect the 5P PH-PH CON.CORD from the [CX051]
on the STANDBY TRANS UNIT.
(3) Disconnect the 2P Wire from the [CX121] on the STAND-
BY TRANS UNIT.
(4) Detach the STANDBY TRANS UNIT in the direction of
the arrow.
5P PH-PH CON. CORD
2P WIRE
17
S-52/S-52DAB/S-32
6B. 1U-3854 STANDBY TRANS UNIT(for EK)
Disconnect the 8P PH-PH SHIELD CORD from the
[CY081] on 1U-3847-2.
(2) Remove the 2 side screws 117, then detach the DAB
SUB ASS'Y.
117
8P PH-PH SHIELD CORD
DAB SUB ASSY
(3) Remove the 2 screws 113 and the 1 screw 105 on the
rear.
(4) Disconnect the 5P PH-PH CON.CORD from the [CX051]
on the STANDBY TRANS UNIT.
(5) Disconnect the 2P Wire from the [CX121] on the STAN-
BY TRANS UNIT.
(6) Detach the STANBY TRANS UNIT in the direction of the
arrow.
5P PH-PH CON. CORD
113 105 113
2P Wire
18
S-52/S-52DAB/S-32
7. POWER TRANS
(1) Remove the 4 screws 105 on the rear.
105
8. 1U-3847-1 POWER AMP UNIT
Disconnect the 6P PH-PH SHIELD CORD from the
[CY062] on the POWER AMP UNIT.
(2) Disconnect the 1P SIN EH CONN CORD from the
[CY021] on the POWER AMP UNIT.
(3) Disconnect the 4P PH-PH CON.CORD from the [CY041]
on the POWER AMP UNIT.
(4) Disconnect the 3P ZH-SAN CON.CORD from the the
[CX303] on the MAIN UNIT and pull out in the direction of
the arrow.
6P PH-PH SHIELD CORD
3P ZH SIN CON. CORD
1P SIN EH CONN CORD
4P PH-PH CON. CORD
19
S-52/S-52DAB/S-32
(5) Remove the 2 inside screws 104 and the 2 rear screws
105.
104
105
9. 1U-3859-1 POWER UNIT
Disconnect the 11P PH-PH CON.CORD from the [CY111]
on the POWER UNIT.
(2) Disconnect the 6P PH-PH CON.CORD from the [CY061]
on the POWER UNIT.
(3) Remove the 4 screws 104.
104
6P PH-PH CON. CORD
6P PH-PH SHIELD CORD
20
S-52/S-52DAB/S-32
10. 1U-3846 MAIN UNIT
Remove the 2 screws 104 where the code holder outside
of the side bracket is fixed.
104
104
(2) Cut off the 1 WIRE CLAMPER and remove.(S-52 only)
(3) Disconnect the 16P CON.CORD from the [CX161] on the
MAIN UNIT.(S-52E3 only)
(4) Disconnect the 15P FFC CABLE from the [CX151] on the
MAIN UNIT.(S-52JP/E2/EK,S-32E2/E3)
(5) Disconnect the 6P PH-PH CON.CORD from the [CX062]
on the MAIN UNIT.
(6) Disconnect the 9P PH-PH CON.CORD from the [CX091]
on the MAIN UNIT.
(7) Disconnect the 3P ZH-SAN CON.CORD from the
[CX303] on the MAIN UNIT.
(8) Disconnect the 5P PH-PH CON.CORD from the [CX051]
on the MAIN UNIT.
(9) Disconnect the 5P PH-PH CON.CORD from the [CX054]
on the MAIN UNIT.(S-52 only)
(10) Disconnect 8P PH-PH CON.CORD from the [CX081] on
the MAIN UNIT.(EK only)
(11) Disconnect 11P PH-PH CON.CORD from the [CX111] on
the MAIN UNIT.
16P CON.CORD 15P FFC CABLE
6P PH-PH CON.CORD
5P PH-PH CON.CORD
9P PH-PH SHIELD
8P PH-PH SHIELD CORD
3P ZH-SIN CON.CORD
11P PH-PH CON.CORD
5P PH-PH CON.CORD
WIRE CRAMPER
21
S-52/S-52DAB/S-32
(12) Disconnect the 1P SAN EH CON.CORD from CX021 on
the Power Amp Unit, then pull out in the direction of the
arrow.
1P SAN EH CON. CORD
(13A)Remove the 4 screws 105 and the 1 screw 113.(E3
only)
(13B)Remove the 3 screws 105 and the 1 screw 113.(JP/E2/
EK only)
(14) Remove the WASHER 114 and the NUT 115.
113 105 105 113 105
105
105 114 115 105 114 115
E3 JP/E2/EK
22
S-52/S-52DAB/S-32
(15) Remove the 6 screws 105 and the 2 screws 104, the 2
washers 118.
(16) Disconnect the 15P FFC CABLE from the AM FM TUN-
ER.(S-52JP/E2/EK,S-32E2/E3)
(17) Disconnect the 9P PH-PH SHIELD CORD from the
[CX063] on the POWER UNIT.
(18) Detach the TOP BRACKET in the direction of the arrow.
105
15P FFC CABLE
15P PH-PH SHIELD CORD
TOP BRACKET
A
118
104
(19) Remove the 3 screws 104.
(20) Lift up the front of MAIN UNIT and detach it in the direc-
tion of the arrow.
104
23
S-52/S-52DAB/S-32
11.ROTARY KNOB
The SNAP FIT is bent from the back of the CABINET in
the direction of the arrow .
(2) The ROTARY KNOB RING is rotated in the direction of
the arrow and detach.
(3) Detach the ROTARY KNOB in the direction of the arrow
.
ROTARY KNOB RING
SNAP FIT
ROTARY KNOB
24
S-52/S-52DAB/S-32
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 initial value is checked by "Iop checked
Method" of next page.
In case of replacing the Pickup, change the whole part of the
Traverse Unit.
No mechanical adjustment is necessary after the replace-
ment.
Laser drive current initial value:
Disc no read, unsteady playback, etc.
Laser drive current (Iop) check
HF wave form check
(Refer to WAVE FORMS)
Present value exceeds the ini-
tial value by 1.5 times
Traverse Unit replacing
Laser current (Iop) memorizing after replacement
25
S-52/S-52DAB/S-32
1. Iop checked Method
Select the laser ON/OFF (CD) mode of the test mode, and
check the lop value of CD laser.
(See page 32 for test mode.)
1.1. CD Laser current check
(1) Press the or button to display the laser
current value, and then select T21.
(2) Check the current value of Iop (nnnn).
( : Off, CD laser, Initial value: mm.mm [mA],
Current value: nn.nn [mA])
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.+150% of the ini-
tial value, replace the Traverse unit (Laser Pick-up) with a
new one.
26
S-52/S-52DAB/S-32
4. Rewriting the default value of the laser
current
To rewrite the default value of the laser current, press the
button for at least 5 seconds while the CD laser current
is displayed, then press the or button to select
T23. (For details, see "Iop checked Method" on page 26.)
If the button is pressed while T23 is displayed, the cur-
rent value is displayed at "mmmm" and stored in the EE-
PROM.
5. Resetting the accumulated laser on time
To clear the accumulated laser on time, press the button
while the accumulated laser on time is displayed (TB1: For
details, see "Test Mode" on page 32.) until " " appears at
the fourth position, the accumulated laser on time of CD is
cleared.
When TB1 is selected, "nnnnnnn" is displayed as 0 so you
can check.
( : Off, nnnnnnn: Hour [h])
27
S-52/S-52DAB/S-32
HOW TO REPLACE TRAVERSE UNIT
(S-52,S-52ADB)
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.
(Follow the procedure below in reverse order when reas-
sembling.)
1. Top Cover disassembly
(1) Remove screw A, then move the Top Cover as shown in
the arrow direction. And detach left end of it as shown
in the arrow direction.
(2) Remove screw B, then move the Loading Unit as shown
in the arrow direction. And detach it as shown in the ar-
row direction.
A
B
28
S-52/S-52DAB/S-32
2. Traverse Unit disassembly
(1) Solder the short-circuit.
(2) Remove 4 screws C.
(3) Disconnect FFC from the Pick Up.
C Solder to short-circuit
C
C
FFC
C
(4) Lift the Traverse Assy and disconnect FFC.
FFC
29
S-52/S-52DAB/S-32
SERVICE MODE
1. Initial Setting Mode
1.1. Preparation
(1) Equipment used: None
(2) Unit setting: No spec other than the following procedure.
1.2. Procedure
SYSTEM
Initialize the backup data when