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SERVICE MANUAL
DBR10 DBR12 DBR15
CONTENTS
SPECIFICATIONS .............................. 3 INSPECTIONS ......................................... 44
PANEL LAYOUT ................... 4 UPDATING ................................. 51
CIRCUIT BOARD LAYOUT MODEL ID SETTING .............. 53
............................................... 5 STARTING SEQUENCE .. 54/56
DIMENSIONS ......................................... 7 FINISHING SEQUENCE .. 58/59
DISASSEMBLY PROCEEDURE ...... 8 PARTS LIST
LSI PIN DESCRIPTION ......... 21 BLOCK DIAGRAM
CIRCUIT BOARDS .................... 22 LEVEL DIAGRAM
TEST PROGRAM ............... 29 CIRCUIT DIAGRAM
NOTES ON THE MEASUREMENT ENVIRONMENT
.................................. 42
PA 012126
HAMAMATSU, JAPAN
Copyright (c) Yamaha Corporation. All rights reserved. PDF '14.07
DBR10/DBR12/DBR15
IMPORTANT NOTICE
This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic
service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users,
and have therefore not been restated.
WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in personal injury,
destruction of expensive components and failure of the product to perform as specified. For these reasons, we advise
all Yamaha product owners that all service required should be performed by an authorized Yamaha Retailer or the
appointed service representative.
IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certification,
recognition of any applicable technical capabilities, or establish a principal-agent relationship of any form.
The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and service
departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable and changes in
specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the
distributor's Service Division.
WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have accumulated
by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to this bus.)
IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.
WARNING: This product contains chemicals known to the State of California to cause cancer, or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT SO EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to solder/
flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
WARNING: THIS APPARATUS MUST BE EARTHED
IMPORTANT. The wires in this mains lead are coloured in accordance with the following code:
GREEN-AND-YELLOW: EARTH
BLUE: NEUTRAL
BROWN: LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying the
terminals in your plug, proceed as follows:
The wire which is coloured GREEN and YELLOW must be connected to the terminal in the plug which is marked by the letter
E or by the safety earth symbol or colored GREEN or colored GREEN and YELLOW.
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those
originally installed.
2
DBR10/DBR12/DBR15
SPECIFICATIONS
General DBR15 DBR12 DBR10
System Type 2-way, Bi-amp Powered Speaker, Bass-reflex Type
Frequency Range (-10dB) 50Hz20kHz 52Hz20kHz 55Hz20kHz
Coverage Angle H90° x V60° Constant Directivity Horn
Crossover Type FIR-X Tuning (Linear Phase FIR Filter)
Crossover Frequency 2.1kHz 2.1kHz 2.1kHz
Measured Maximum SPL (peak) 132dB SPL 131dB SPL 129dB SPL
IEC noise@1m
Transducer DBR15 DBR12 DBR10
LF Diameter 15" Cone 12" Cone 10" Cone
Voice coil 2.5" 2" 2"
Magnet Ferrite
HF Diaphragm 1.4" 1"
Type 1" Throat Compression Driver
Magnet Ferrite
Enclosure DBR15 DBR12 DBR10
Material, Color Plastic, Black
Floor Monitor Angle 50° Symmetrical 50° Symmetrical 50°
Dimensions 455 x 700 x 378 mm 376 x 601 x 348 mm 308 x 493 x 289 mm
(WxHxD, with rubber feet) (17.9" x 27.6" x 14.9") (14.8" x 23.7" x 13.7") (12.1" x 19.4" x 11.4")
Net Weight 19.3kg (42.6lbs) 15.8kg (34.8lbs) 10.5kg (23.2lbs)
Handles Side x 2 Top x 1
Pole Socket 35mm
Rigging points Bottom x 2, Rear x 1 (Fit for M8 x 15mm Eyebolts) Bottom x 2 (Fit for M8 x 15mm
Eyebolts)
Optional Seaker Bracket BBS251, BCS251, BWS251-300, BWS251-400
Amplifier DBR15 DBR12 DBR10
Amplifier Type Class-D
Power Rating *1 Dynamic 1000W (LF: 800W, HF: 200W) 700W (LF: 500W, HF: 200W)
Continuous 465W (LF: 400W, HF: 65W) 325W (LF: 260W, HF: 65W)
Cooling Fan cooling, 4 speeds
AD/DA 24bit 48kHz sampling
HPF/LPF OFF, 100Hz, 120Hz, 24dB/Oct. HPF
DSP preset D-CONTOUR: FOH/MAIN, MONITOR, OFF
Protection Speaker Clip Limiting, Integral Power Protection, DC-fault
Amplifier Thermal, Output Over Current
Power supply Thermal, Output Over Voltage, Output Over Current
Connectors Input Input1: Combo x1, Input2: Combo x1, RCA PIN x2 (Unbalanced)
Output Output: XLR3-32 x1 (CH1 Parallel Through or CH1+CH2 Mix)
Input Impedance INPUT1 (XLR, Phone): 3 k, INPUT2 (XLR, Phone, RCA Pin): 10 k
Input Sensitivity (LEVEL: Maximum) INPUT1: LINE: 0 dBu, MIC: -32 dBu, INPUT2: 0 dBu
Input Sensitivity (LEVEL: Center) INPUT1: LINE: +10 dBu, MIC: -22 dBu, INPUT2: +10 dBu
Maximum Input Level INPUT1: LINE: +24 dBu, MIC: -8 dBu, INPUT2: +24 dBu
Controls LEVEL x2, LINE/MIC, HPF, D-CONTOUR, THRU/MIX, POWER
Idle Power Consumption 18W
1/8 Power Consumption 74W 60W
Power Requirements 100V, 110120V, 220240V, 110/127/220V (Brazil), 50/60Hz
0dBu is referenced to 0.775Vrms.
*1 Power rating (120V, 25°C). This is total value of individual output power.
· Included Accessories
· AC power cord
· Owner's manual
·Technical Specifications (English only)
3
DBR10/DBR12/DBR15
PANEL LAYOUT
Rear Bottom
w
r
q t
y !5
u
q e
!0
!1
i
o
!2
!3 !4
q [INPUT] jacks (CH1 and CH2) q[
w [LEVEL] knobs w[
e [MIC/LINE] switch e[
r [LIMIT] indicator r[
t [SIGNAL] indicator t[
y [PROTECTION] indicator y[
u [POWER] indicator u[
i [OUTPUT] switch i[
o [OUTPUT] jack o[
!0 [D-CONTOUR] indicator !0 [
!1 [D-CONTOUR] switch !1 [
!2 [HPF] switch !2 [
!3 [AC IN] socket !3 [
!4 [I/ ] (power) switch !4 [I/ ]
!5 Pole socket !5
4
DBR10/DBR12/DBR15
CIRCUIT BOARD LAYOUT
5
DBR10/DBR12/DBR15
(P destination only)
6
DBR10/DBR12/DBR15
DIMENSIONS
DBR10
493
308
120
2-M8 depth 17mm
138
148
336
50°
289
For pole 35mm
Unit : mm
M8 depth 17mm
DBR12
102
601
376
150
2-M8 depth
17mm
152
162
408
50°
348
For pole
35mm
Unit : mm
M8 depth 17mm
DBR15
126
700
455
150
2-M8 depth 17mm
163
173
464
50°
378
For pole 35mm
Unit : mm
7
DBR10/DBR12/DBR15
DISASSEMBLY PROCEDURE
A. Disassembly of DBR10
* When you remove binding ties and such, always
install as before removal.
A-1. Grille 10 Assembly
(Time required: About 1 minute)
A-1-1 Remove the four (4) screws marked [230]. The grille
10 assembly can then be removed. (Fig. A-1)
A-2. Loud Speaker (Woofer)
(Time required: About 3 minutes)
A-2-1 Remove the grille 10 assembly. (See procedure A-1.)
A-2-2 Remove the four (4) screws marked [210]. The loud
speaker (woofer) can then be removed.
(Fig. A-2, Fig. A-3)
* When installing the loud speaker (woofer), first
match the position of the terminal to the direction
shown by the mark and then tighten the two (2)
priority screws as shown in Fig. A-3.
A-2-3 Remove the LF 10 connector assembly (red/black)
attached to the loud speaker (woofer) terminal.
(Fig. A-2, Fig. A-4)
* The loud speaker (woofer) is heavy. Be careful not to
drop it.
Fig. A-1 Fig. A-2
8
DBR10/DBR12/DBR15
Fig. A-3 Fig. A-4
A-3. Baffle 10 Assembly
(Time required: About 4 minutes)
A-3-1 Remove the grille 10 assembly. (See procedure A-1.)
A-3-2 Remove the loud speaker (woofer). (See procedure A-2.)
A-3-3 Remove the twelve (12) screws marked [170]. The
baffle 10 assembly can then be removed.
(Fig. A-5, Fig. A-6)
* When installing the baffle 10 assembly, first tighten the
seven (7) priority screws in order as shown in Fig. A-6.
A-3-4 Disconnect the connectors of the LF 10 connector
assembly (red/black), HF 10 connector assembly
(yellow/blue) from the amp assembly 10.
(Fig. A-5, Photo A-1)
* Take care not to open the baffle 10 assembly
too wide or these connector assemblies may be
damaged. (Fig. A-5, Photo A-1)
Fig. A-5
9
DBR10/DBR12/DBR15
w e
q q
e w
r
Fig. A-6 Photo A-1
A-4. Loud Speaker (Tweeter)
(Time required: About 5 minutes)
A-4-1 Remove the grille 10 assembly. (See procedure A-1.)
A-4-2 Remove the loud speaker (woofer). (See procedure A-2.)
A-4-3 Remove the baffle 10 assembly. (See procedure A-3.)
A-4-4 Remove the HF 10 connector assembly (yellow/blue)
attached to the loud speaker (tweeter) terminal.
(Fig. A-7, Fig. A-8)
A-4-5 Remove the four (4) screws marked [140]. The bradket
HFP can then be removed together with the loud
speaker (tweeter). (Fig. A-7, Fig. A-8)
* When installing the bracket HFP, first tighten the two
(2) priority screws as shown in Fig. A-8.
A-4-6 Remove the two (2) screws marked [130] and two
(2) washer o. tooth marked [120]. The loud speaker
(tweeter) can then be removed from the bradket HFP.
(Fig. A-7)
Fig. A-7
10
DBR10/DBR12/DBR15
Fig. A-8
A-5. Amp Assembly 10
(Time required: About 3 minutes)
A-5-1 Remove the ten (10) screws marked [250].
(Fig. A-9, Fig. A-10)
* When installing the amp assembly 10, first tighten the
two (2) priority screws in order as shown in Fig. A-10.
A-5-2 Loosen the two (2) screws for removing the amp
assembly . (Fig. A-10)
* Loosen only ! Never remove these screws. Tighten
these screws when installing the amp assembly 10.
(Fig. A-10)
A-5-3 Hold the two (2) screws for removing the amp assembly
and then remove the amp assembly 10 carefully.
(Fig. A-10)
For about disassembly of amp assembly, refer to 17
page.
q
w
Fig. A-9 Fig. A-10
11
DBR10/DBR12/DBR15
B. Disassembly of DBR12/DBR15
* When you remove binding ties and such, always
install as before removal.
B-1. Grille 12 Assembly/Grille 15 Assembly
(Time required: About 1 minute)
B-1-1 Remove the six (6) screws marked [260]. The grille 12
assembly/grille 15 assembly can then be removed. (Fig. B-1)
* When installing the grille 12 assembly/grille 15
assembly, first tighten the two (2) priority screwa as
shown in Fig. B-1.
B-2. Loud Speaker (Woofer)
(Time required: About 3 minutes)
B-2-1 Remove the grille 12 assembly/grille 15 assembly.
(See procedure B-1.)
B-2-2 Remove the eight (8) screws marked [240]. The loud
speaker (woofer) can then be removed.
(Fig. B-2, Fig. B-3)
* When installing the loud speaker (woofer), first
match the position of the terminal to the direction
shown by the mark and then tighten the four (4)
priority screws as shown in Fig. B-3.
B-2-3 Remove the LF 12 connector assembly/LF 15 connector
assembly (red/black) attached to the loud speaker
(woofer) terminal. (Fig. B-2, Fig. B-4)
* The loud speaker (woofer) is heavy. Be careful not to
drop it.
This figure shows the DBR12.
This figure shows the DBR12.
Fig. B-1 Fig. B-2
12
DBR10/DBR12/DBR15
q
q
r
r
e e
w w
Fig. B-3
Fig. B-4
B-3. Baffle 12 Assembly/Baffle 15 Assembly
(Time required: About 4 minutes)
B-3-1 Remove the grille 12 assembly/grille 15 assembly.
(See procedure B-1.)
B-3-2 Remove the loud speaker (woofer). (See procedure B-2.)
B-3-3 DBR12 :
Remove the fourteen (14) screws marked [200A]. The
baffle 12 assembly can then be removed.
(Fig. B-5, Fig. B-6)
DBR15 :
Remove the sixteen (16) screws marked [200B]. The
baffle 15 assembly can then be removed.
(Fig. B-5, Fig. B-6)
* When installing the baffle 12 assembly/baffle 15
assembly, first tighten the ten (10)/twelve (12) priority
screws in order as shown in Fig. B-6.
B-3-4 Disconnect the connectors of the LF 12 connector
assembly/LF 15 connector assembly (red/black), HF 12
connector assembly/HF 15 connector assembly (yellow/
blue) from the amp assembly 12/amp assembly 15.
(Fig. B-5, Photo B-1)
* Take care not to open the baffle 12 assembly/baffle
15 assembly too wide or these connector assemblies
may be damaged. (Fig. B-5, Photo B-1)
13
DBR10/DBR12/DBR15
DBR12 : [200A] x 14
DBR15 : [200B] x 16
This figure shows the DBR12.
Fig. B-5
t y
r t r e
w e w q
q w
q q
e w e r
t r y t
Fig. B-6
This photo shows the DBR12.
Photo B-1
14
DBR10/DBR12/DBR15
B-4. Loud Speaker (Tweeter)
(Time required: About 5 minutes)
B-4-1 Remove the grille 12 assembly/grille 15 assembly.
(See procedure B-1.)
B-4-2 Remove the loud speaker (woofer). (See procedure B-2.)
B-4-3 Remove the baffle 12 assembly/baffle 15 assembly.
(See procedure B-3.)
B-4-4 Remove the HF 12 connector assembly/HF 15
connector assembly (yellow/blue) attached to the loud
speaker (tweeter) terminal. (Fig. B-7, Fig. B-8)
B-4-5 Remove the four (4) screws marked [170]. The TW
plate AL can then be removed together with the loud
speaker (tweeter). (Fig. B-7, Fig. B-8)
* When installing the TW plate AL, first tighten the two
(2) priority screws as shown in Fig. B-8.
B-4-6 Remove the four (4) screws marked [160] and four
(4) washer o. tooth marked [150]. The loud speaker
(tweeter) can then be removed from the TW plate AL.
(Fig. B-7)
This figure shows the DBR12.
Fig. B-7
This figure shows the DBR12.
Fig. B-8
15
DBR10/DBR12/DBR15
B-5. Amp Assembly 12 /Amp Assembly 15
(Time required: About 3 minutes)
B-5-1 Remove the ten (10) screws marked [280].
(Fig. B-9, Fig. B-10)
* When installing the amp assembly 12/amp assembly
15, first tighten the two (2) priority screws in order as
shown in Fig. B-10.
B-5-2 Loosen the two (2) screws for removing the amp
assembly. (Fig. B-10)
* Loosen only ! Never remove these screws. Tighten
these screws when installing the amp assembly 12/
amp assembly 15. (Fig. B-10)
B-5-3 Hold the two (2) screws for removing the amp assembly
and then remove the amp assembly 12/amp assembly
15 carefully. (Fig. B-10)
For about disassembly of amp assembly, refer to 17
page.
This figure shows the DBR12.
Fig. B-9
q
w
This figure shows the DBR12.
Fig. B-10
16
DBR10/DBR12/DBR15
C. Disassembly of Amp Assembly
* Before disassembly, remove the amp assembly in
advance. (See procedure A-5, B-5.)
* When you remove binding ties and such, always
install as before removal.
C-1. SUBL (SP IN) Circuit Board
(Time required: About 8 minutes)
C-1-1 Remove the grille assembly. (See procedure A-1, B-1.)
C-1-2 Remove the loud speaker (woofer).
(See procedure A-2, B-2.)
C-1-3 Remove the amp assembly. (See procedure A-5, B-5.)
C-1-4 Remove the HF/LF connector assembly from the SUBL
(SP IN) circuit board. (Fig. C-1)
C-1-5 Remove the four (4) screws marked [40] (DBR10) or
marked [50] (DBR12/DBR15). The SUBL (SP IN)
circuit board can then be removed. (Fig. C-1, Photo C-1)
SUBL(SP IN)
This figure shows the DBR12. SUBL(SP IN)
Photo C-1
Fig. C-1
C-2. Shield AMP Assembly
(Time required: About 1 minute)
C-2-1 Remove the connector assembly of DC fan. (Fig. C-2)
C-2-2 Remove the five (5) screws marked [380]. The shield
AMP assembly can then be removed. (Fig. C-2)
* When installing the shield AMP assembly, first tighten
the three (3) priority screws in order as shown in Fig.
C-2.
e
w
q
Fig. C-2 17
DBR10/DBR12/DBR15
C-3. SUBL (SP OUT) Circuit Board
(Time required: About 1 minute)
C-3-1 Remove the shield AMP assembly. (See procedure C-2.)
C-3-2 Remove the SUBL (SP OUT) circuit board by pulling
it from the connector CN202 of the AMPS circuit board.
(Fig. C-3)
C-4. AMPS Circuit Board
(Time required: About 3 minutes)
C-4-1 Remove the shield AMP assembly. (See procedure C-2.)
C-4-2 Remove the SUBL (SP OUT) circuit board.
(See procedure C-3.)
C-4-3 Remove the ten (10) screws marked [300]. The AMPS
circuit board can then be removed. (Fig. C-3)
* When installing the AMPS circuit board, first tighten the
two (2) priority screws in order as shown in Fig. C-3.
SUBL(SP OUT)
q
AMPS
w
Fig. C-3
C-5. SUBL (ACIN) Circuit Board
(Time required: About 3 minutes)
C-5-1 Remove the shield AMP assembly. (See procedure C-2.)
C-5-2 Remove the three (3) screws marked [170] and the
screw marked [340]. The SUBL (ACIN) circuit board
can then be removed. (Fig. C-4)
* When installing the SUBL (ACIN) circuit board, first tighten
the two (2) priority screws in order as shown in Fig. C-4.
C-5-3 Remove the five (5) nylon rivets white marked [110] .
The cover ACIN can then be removed. (Fig. C-4)
C-5-4 Remove the screw marked [70] . The angle acin can
then be removed. (Fig. C-4)
* The cover ACIN, angle ACIN and the bracket AC inlet
are not parts of the SUBL (ACIN) circuit board. When
replacing the SUBL (ACIN) circuit board, remove from
the SUBL (ACIN) circuit board and install them to the
new SUBL (ACIN) circuit board. (Fig. C-4)
* Change the nonwoven fabric cloth when replacing the
SUBL (ACIN) circuit board.
* When installing the screw marked [340], tighten so that
the terminal lug points within the 90-degree range as
shown in Fig. C-4
18
DBR10/DBR12/DBR15
SUB(ACIN)
Fig. C-4
C-6. DSP Circuit Board
(Time required: About 5 minutes)
C-6-1 Remove the shield AMP assembly. (See procedure C-2.)
C-6-2 Remove the six (6) screws marked [180]. The shield
DSP assembly can then be removed. (Fig. C-5)
* When installing the shield DSP assembly, first tighten
the two (2) priority screws in order as shown in Fig. C-5.
C-6-3 Remove the two (2) knob VR small. (Fig. C-5)
C-6-4 Remove the seven (7) screws marked [30] and seven (7)
screws marked [200]. The DSP circuit board can then
be removed. (Fig. C-5)
* After replacing the DSP circuit board, be sure to execute
setting of the model ID.
For details, refer to "MODEL ID SETTING".
(See page 53)
q
w
DSP
Fig. C-5
19
DBR10/DBR12/DBR15
C-7. VSL Circuit Board (P destination only)
(Time required: About 4 minutes)
C-7-1 Remove the shield AMP assembly. (See procedure C-2.)
C-7-2 Remove the SUBL (ACIN) circuit board.
(See procedure C-5.)
C-7-3 Remove the two (2) screws marked [190]. The VSL
circuit board can then be removed. (Fig. C-6)
* When installing the VSL circuit board, first tighten the
priority screw as shown in Fig. C-6.
VSL
Fig. C-6
C-8. DC FAN (Time required: About 1 minute)
C-8-1 Remove the four (4) screws marked [370]. The DC fan
can then be removed. (Fig. C-7)
* When installing the DC fan, first tighten the two (2)
priority screws in order as shown in Fig. C-7.
* Check the color of connector assembly in DC fan.
AMP ASSEMBLY 10 : Red (hot), Black (cold)
AMP ASSEMBLY 12/15 : White (hot), Black (cold)
Fig. C-7
20
DBR10/DBR12/DBR15
LSI PIN DESCRIPTION
PCM1781DBQR (X7375A00) DAC (Digital to Analog Converter) ........................................................21
PCM1803ADBR (X7357B00) ADC (Analog to Digital Converter) ........................................................21
PCM1803DBR (X7357A00) ADC (Analog to Digital Converter) ..........................................................21
TM4C1230D5PMIR (YF553A00) CPU .................................................................................................22
YSS952-QZE2A (YE441A00) DSP (SPR-2) (Digital Signal Processor) ...............................................21
PCM1803DBR (X7357A00) ADC (Analog to Digital Converter)
PCM1803ADBR (X7357B00) ADC (Analog to Digital Converter) DSP: IC401
PIN PIN
NAME I/O FUNCTION NAME I/O FUNCTION
NO. NO.
1 VINL I Analog input (L ch) 11 BCK I/O Audio data bit clock input/output
2 VINR I Analog input (R ch) 12 DOUT O Audio data digital output
3 VREF1 - Reference-voltage-1 decoupling capacitor 13 DGND - Digital ground
4 VREF2 - Reference-voltage-2 decoupling capacitor 14 VDD - Digital power supply +3.3V
5 VCC - Analog power supply +5V 15 SCKI I System clock input
6 AGND - Analog ground 16 OSR I Oversampling ratio select input
7 PDWN I Power-down control, active-low 17 FMT0 I Audio data format select input 0
8 BYPAS I HPF bypass control 18 FMT1 I Audio data format select input 1
9 TEST I Test, must be connected to DGND 19 MODE0 I Mode select input 0
10 LRCK I/O Audio data latch enable input/output 20 MODE1 I Mode select input 1
YSS952-QZE2A (YE441A00) DSP (SPR-2) (Digital Signal Processor) DSP: IC402
PIN PIN
NAME I/O FUNCTION NAME I/O FUNCTION
NO. NO.
1 GPIO5 I/O 17 OPEN - Leave this pin open
2 GPIO4 I/O General-purpose I/O pins 18 DVSS - GND
3 GPIO3 I/O 19 IRQ_N O Interrupt request output pin to the host controller
4 DVSS - GND 20 DVDD18 - Core power supply
5 GPIO2 I 21 GPIO11 I/O General-purpose I/O pins
6 GPIO1 I General-purpose I/O pins 22 TESTb I Test pin
7 GPIO0 I 23 DVSS - GND
8 PLLVDD - PLL power supply 24 OPEN - Leave this pin open
9 IC_N I Hardware reset pin 25 DVSS - GND
10 PLLVSS - 26 GPIO10 I/O
11 PLLVSS - PLL GND 27 GPIO9 I/O General-purpose I/O pins
12 XIN I Clock input pin 28 GPIO8 I/O
13 XOUT O Clock output pin 29 IOVDD - Control interface power supply
14 IOVDD - Control interface power supply 30 GPI07 I/O General-purpose I/O pins
15 SCL I I2C control bus clock input pin 31 DVDD18 - Core power supply
16 SDA I/O I2C control bus data I/O pin 32 GPI06 I/O General-purpose I/O pins
PCM1781DBQR DAC
PIN PIN
NAME I/O FUNCTION NAME I/O FUNCTION
NO. NO.
21
DBR10/DBR12/DBR15
TM4C1230D5PMIR CPU
PIN PIN
NAME I/O FUNCTION NAME I/O FUNCTION
NO. NO.
CIRCUIT BOARDS
AMPS Circuit Board (YF909C0) .......................................................... 23/24
DSP Circuit Board (YF913C0) ............................................................. 25/26
SUBL (ACIN) Circuit Board (YF910D0) ................................................... 27
SUBL (SP IN) Circuit Board (YF910D0) ................................................... 26
SUBL (SP OUT) Circuit Board (YF910D0) ............................................... 28
VSL Circuit Board (YF911B0)(P destination only) .................................... 28
Note: See parts list for details of circuit board component parts.
22
DBR10/DBR12/DBR15
AMPS Circuit Board
to VSL-CN901
(P destination only)
to SUBL(ACIN)-W301
to POWER TRANSFORMER (T101)
to DSP-CN505
to SUBL(SP OUT)-CN303
to DSP-CN504
to DC FAN Component side
2NA-ZJ27480 1
23
DBR10/DBR12/DBR15
AMPS Circuit Board
Pattern side
2NA-ZJ27480 1
24
DBR10/DBR12/DBR15
DSP Circuit Board
Scale: 90/100
to AMPS-CN201 to AMPS-CN103
not connected not connected
to DSP-CN601 to DSP-CN602
Component side
Scale: 90/100
Pattern side
2NA-ZJ27600 1
25
DBR10/DBR12/DBR15
DSP Circuit Board
to DSP-CN603 to DSP-CN604
Component side
Pattern side
SUBL (SP IN) Circuit Board
to TWEETER
to SUBL(SP OUT)-CN304
to WOOFER
Component side Pattern side
DSP: 2NA-ZJ27600 1
SUBL (SP IN):2NA-ZJ27580 1
26
DBR10/DBR12/DBR15
SUBL (ACIN) Circuit Board to POWER SWITCH
to AMPS-CN101
Component side
Pattern side
2NA-ZJ27580 1
27
DBR10/DBR12/DBR15
SUBL (SP OUT) Circuit Board
to AMPS-CN202
to SUBL(SP IN)-CN305
Component side Pattern side
VSL Circuit Board (P destination only)
to AMPS-CN102
Component side
SUBL (SP OUT):2NA-ZJ27580 1
VSL: 2NA-ZJ28000
28
DBR10/DBR12/DBR15
TEST PROGRAM
This test program is applied to the DBR10, DBR12 and
DBR15.
1. Preparation
1-1. Required items
· Personal Computer
Windows machine 1 unit
Windows 7 with COM port
(CPU multi core 1.0 GHz or above,
RAM 1 GB(32 bit)/2 GB(64 bit) or above)
· Serial Interface Jig set for diagnosis :
ZF928400/ZF928401 (USB2UART-CP2102 x 1,
4 pin cable x 1)
If the operation system is Windows XP, download the
USB-UART conversion jig driver from the YSISS homep-
age.
*For Windows 7, it is recognized as the COM port.
Seral port settings are below.
Baud rate (Bit/s) : 115200
Byte size : 8
Parity : NO PARITY
Stop bit : 1
1-2. Application for Service inspection
Download the latest version of application files for service
inspection from the YSISS homepage and copy them to C
drive of personal computer as shown below.
(URL >> http://plaza.yamaha.co.jp/ysiss/exindex.nsf) URL >> http://plaza.yamaha.co.jp/ysiss/index.nsf
· C:ĄDBRĄtoolsĄDIAGĄDiagDBR-SERVICE.exe · C:ĄDBRĄtoolsĄDIAGĄDiagDBR-SERVICE.exe
· C:ĄDBRĄtoolsĄDIAGĄDiagDBR-SERVICE.ini · C:ĄDBRĄtoolsĄDIAGĄDiagDBR-SERVICE.ini
These are used for displaying the instruction of test
execution and the result of execution.
1-3. Connection
Perform connection as shown in the figure below.
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DBR10/DBR12/DBR15
2. Service inspection
2-1. How to activate
(1) When the power is supplied to the AMP UNIT, the
diagnostic mode is activated automatically and LED
in the rear panel are all-points lighted only once. It
starts in the state of CFG0 (PROTECTION : off, FAN
: stop, AMP : disable, MUTE : all on) of ANALOG
inspection.
(2) Run application for Service inspection (DiagDXR-
SERVICE.exe).
The following inspection screen is displayed.
Note:
If all LEDs on the rear panel do not carry out all-points
light, it's considered that it started with mode other than
diagnostic mode, setup mistake or peripheral circuitry
trouble.
Inspection screen
30
DBR10/DBR12/DBR15
3. Test Items
For details of inspection refer to "INSPECTIONS" on
page 44.
3-1. INFO inspection
Check VERSION number by sight.
Check MODEL ID by sight.
The result is displayed in property window as shown below.
* It's possible that the column of value is in blank.
* Example is described in the column of Value.
* If firmware is broken, "firmware is broken" is
displayed in VERSION.
Value
Field Supplementary note
(Example)
DBR10
DBR12
MODEL ID Corresponding Model ID.
DBR15
UNKNOWN
F/W
V1.00 Character string of Version.
VERSION
Caution
If the version number indicated in the VERSION column
varies from the latest version number, discontinue testing.
Update the firmware to the latest version and then restart
testing.
Troubleshooting
It is the model and property which are displayed on the
target when it fails. It is checked whether the model
currently displayed on the window is in agreement.
If models differ, inspect by the Diag application
corresponding to the model of the target. If the model is in
agreement , check an AMPS circuit board.
31
DBR10/DBR12/DBR15
3-2. DSP inspection
Communication condition with DSP via I2C-BUS,
operational state of inside DSP and connection of a DSP-
IRQ terminal are inspected automatically.
The result is displayed in output window as shown below.
When Normal
I2C DSP COM PASS: DSP I2C-COM
I2C DSP CTRL PASS: DSP I2C-CTRL
DSP-IRQ PASS: DSP DSP-IRQ
When out of order
I2C DSP COM FAIL: DSP I2C-COM
I2C DSP CTRL FAIL: DSP I2C-CTRL
DSP-IRQ FAIL: DSP DSP-IRQ
Troubleshooting
If you fail, check wire connection and the following parts.
CPU (PCB DSP : IC504-32pin):DSP-SDA DSP (PCB
DSP : IC402)
CPU (PCB DSP : IC504-33pin):DSP-SCL DSP (PCB
DSP : IC402)
CPU (PCB DSP : IC504-34pin):/DSP-IRQ DSP (PCB
DSP : IC402)
CPU (PCB DSP : IC504-35pin):/DSP-RES DSP (PCB
DSP : IC402)
3-3. AD input port inspection
The voltage (temperature) from T-SENSE port is
inspected automatically.
The result is displayed in output window as shown below.
When Normal
0.52V~1.15V PASS: Temperature *(xxxx mV)
When Abnormal
0.52V or below FAIL: Temperature *( xxxx mV)
1.15 V or above FAIL: Temperature *( xxxx mV)
*( xxxx mV) represents electric pressure measured.
Troubleshooting
If you fail, check wire connection and the following parts.
32
DBR10/DBR12/DBR15
3-4. LED inspection
LIMIT LED lights. Conduct inspection whether it turns
off the light.
SIGNAL LED lights. Conduct inspection whether it
turns off the light.
PROTECTION LED lights. Conduct inspection whether
it turns off the light.
POWER LED lights. Conduct inspection whether it
turns off the light.
D-CONTOUR LED lights. Conduct inspection whether
it turns off the light.
Conduct inspection whether all LEDs light or not.
Each LED test is started.
In consideration of a case that operator misses a sequence
of action that turns on off the LED, it's possible to
reconfirm the successive test with "Retry" button.
Determine all LED tests comprehensively.
If result is PASS, click "Yes" button.
If result is FAIL, click "No" button.
The result is displayed in output window as shown below.
When Normal
LED CHECK PASS: LED CHECK LED CHECK PASS: LED CHECK
When out of order
LED CHECK FAIL: LED CHECK LED CHECK FAIL: LED CHECK
33
DBR10/DBR12/DBR15
Troubleshooting
If you fail, check wire connection and the following parts.
3-5. SWITCH inspection
Inspect On | Off status of D-CONTOUR switch.
Inspect On | Off status of HPF switch.
[D-CONTOUR inspection]
Following the window below, the state of each switch is
operated. After "OK" button is pressed, the status of switch
is inquired to firmware side and judged automatically.
If status received from firmware is not the one intended,
whether or not to perform again the test that status of
switch is the same is confirmed. The test is performed
again with "Retry" button, and not performed again with
"Cancel" button.
[HPF inspection]
Following the window below, the state of each switch is
operated. After "OK" button is pressed, the status of switch
is inquired to firmware side and judged automatically.
34
DBR10/DBR12/DBR15
If status received from firmware is not the one intended,
whether or not to perform again the test that status of
switch is the same is confirmed. The test is performed
again with "Retry" button, and not performed again with
"Cancel" button.
The result is displayed in output window as shown below.
When Normal
D-CONTOUR PASS: SW D-CNTR-FOH xxxx[mV] (xxxx) D-CONTOUR PASS: SW D-CNTR-FOH xxxx[mV] (xxxx)
switch PASS: SW D-CNTR-OFF xxxx[mV] (xxxx) PASS: SW D-CNTR-OFF xxxx[mV] (xxxx)
PASS: SW D-CNTR-MONI xxxx[mV] (xxxx) PASS: SW D-CNTR-MONI xxxx[mV] (xxxx)
HPF switch PASS: SW HPF-120HZ xxxx[mV] (xxxx) HPF PASS: SW HPF-120HZ xxxx[mV] (xxxx)
PASS: SW HPF-100HZ xxxx[mV] (xxxx) PASS: SW HPF-100HZ xxxx[mV] (xxxx)
PASS: SW HPF-OFF xxxx[mV] (xxxx) PASS: SW HPF-OFF xxxx[mV] (xxxx)
When out of order
D-CONTOUR FAIL: SW D-CNTR-FOH *[voltage] *[value] D-CONTOUR FAIL: SW D-CNTR-FOH *[voltage] *[value]
switch FAIL: SW D-CNTR-OFF *[voltage] *[value] FAIL: SW D-CNTR-OFF *[voltage] *[value]
FAIL: SW D-CNTR-MONI *[voltage] *[value] FAIL: SW D-CNTR-MONI *[voltage] *[value]
HPF switch FAIL: SW HPF-120HZ *[voltage] *[value] HPF FAIL: SW HPF-120HZ *[voltage] *[value]
FAIL: SW HPF-100HZ *[voltage] *[value] FAIL: SW HPF-100HZ *[voltage] *[value]
FAIL: SW HPF-OFF *[voltage] *[value] FAIL: SW HPF-OFF *[voltage] *[value]
*[voltage]= A voltage value set as 3 steps by the slide
switch [mV]
*[value]= 12bit A/D value
Troubleshooting
If you fail, check wire connection and the following parts.
35
DBR10/DBR12/DBR15
3-6. FAN inspection
Inspect FAN condition when the speed of FAN is changed.
Inspect the speed of FAN to change and to become early.
Determine FAN tests comprehensively.
If result is PASS, click "Yes" button.
If result is FAIL, click "No" button.
The result is displayed in output window as shown below.
When Normal
FAN CHECK PASS: FAN CHECK FAN CHECK PASS: FAN CHECK
When out of order
FAN CHECK FAIL: FAN CHECK FAN CHECK FAIL: FAN CHECK
Troubleshooting
If you fail, check wire connection and the following parts.
3-7. AMP inspection
The quality of the AMP-ENA/ AMP-ERR connection is
inspected.
The AMP-ENA is set to DISABLE and the response of
AMP-ERR generating is inspected.
The result is displayed in output window as shown below.
When Normal
AMP-ERR PASS: AMP AMP-ERR *[time] AMP-ERR PASS: AMP AMP-ERR *[time]
When out of order
AMP-ERR FAIL: AMP AMP-ERR *[time] AMP-ERR FAIL: AMP AMP-ERR *[time]
*[time]= It is time after setting AMP-ENA to DISABLE
until an AMP-ERR response occurs.
Troubleshooting
If you fail, check wire connection and the following parts.
CPU (PCB DSP : IC504-6pin):AMP-EN-U CN504
AMPS
CPU (PCB DSP : IC504-5pin):AMP-ERR CN504
AMPS
36
DBR10/DBR12/DBR15
3-8. ANALOG inspection
Configuration for conductihg various kinds of analog-
characteristics inspection is performed.
[CFG0] PROTECTION:off, FAN:stop, AMP:disable,
MUTE:all on.
[CFG1] PROTECTION:off, FAN:low, AMP:enable,
MUTE:all off.
Operator shall measure Analog signal value.
The measurement result in the ANALOG test of each path
is inputted.
When determination of the result based on measurement
result by operator is input, the result is displayed in output
window as shown below.
When Normal
Measurement value PASS PASS: ANA CFG[0-1]
When Out of order
Measurement value FAIL FAIL: ANA CFG[0-1]
3-9. MUTE inspection
Conduct Level check when DSP mute (SP OUT side).
Conduct Level check when DAC mute (SP OUT side).
Conduct Level check when LINE mute (LINE OUT side).
Input measuring result on each MUTE test.
If result is PASS, click "Yes" button.
If result is FAIL, click "No" button.
37
DBR10/DBR12/DBR15
When determination of the result based on measurement
result by operator is input, the result is displayed in output
window as shown below.
When Normal
Measurement value PASS PASS: MUTE DSP-ON
PASS: MUTE DSP-OFF
PASS: MUTE DAC-ON
PASS: MUTE DAC-OFF
PASS: MUTE LINE-ON
PASS: MUTE LINE-OFF
When Abnormal
Measurement value FAIL FAIL: MUTE DSP-ON
FAIL: MUTE DSP-OFF
FAIL: MUTE DAC-ON
FAIL: MUTE DAC-OFF
FAIL: MUTE LINE-ON
FAIL: MUTE LINE-OFF
Troubleshooting
If you fail, check wire connection and the following parts.
38
DBR10/DBR12/DBR15
3-10.POFF-REQ inspection
Inspect the shutdown of the power supply when POFF-
REQ is activated.
At this time, it also checks that PWR-OFF occurs.
It is set to "FAIL" when there is no response, even if
PWR-OFF becomes temporary standard time.
Click "OK" button and start the POFF-REQ tests.
Determine POFF-REQ tests comprehensively.
If result is PASS, click "Yes" button.
If result is FAIL, click "No" button.
When determination of the result based on measurement
result by operator is input, the result is displayed in output
window as shown below.
When Normal
POFF CHECK PASS: POFF CHECK *[time] POFF CHECK PASS: POFF CHECK *[time]
When out of order
POFF CHECK FAIL: POFF CHECK *[time] POFF CHECK FAIL: POFF CHECK *[time]
*[time]= It is time after setting POFF-REQ to ENABLE
until an PWR-ERR response occurs.
Troubleshooting
If you fail, check wire connection and the following parts.
CPU(PCB DSP:IC504-4pin):POFF-REQ CN505
POWER SUPPLY MODULE
CPU(PCB DSP:IC504-1pin):/PWR-OFF CN505
POWER SUPPLY MODULE
Returning to Original State after Completion of Checking
Turn off the power switch, wait for 1 minute or longer and
then turn on the power switch.
39
DBR10/DBR12/DBR15
The explanation of Application
(1) Title bar (q) q
Title of application is displayed.
(2) Title button (w) w
Button for managing window is displayed.
The buttons are "minimization", "maximization" and
"close" from the left. e
(3) Menu bar (e)
Menu list is displayed. r
(4) Tool bar (r)
Command buttons are displayed. t
(5) Tree window (t)
Test items are shown by hierarchical display.
After being selected, item which is included in hierarchy
is displayed in "List window". y
(6) List window (y)
List of items which are included in hierarchy selected in
Tree window is displayed.
When test is started from [Test]-[Start] menu, it is per-
formed to item only which was ticked.
When "Detail" is selected to display, "Result" and "Pro-
cedure" are displayed.
Font color can be changed depending on test result.
Font color change is specified at [View]-[Options] menu.
40
DBR10/DBR12/DBR15
(7) Property window (u) u
List of character strings obtained by test is displayed.
(8) Output window (i) i
Character strings, such as communication content with
the unit, are displayed.
Font type and the color are specified at [View]-[Options]
menu.
(9) Function Key (o) o
Commands assigned from F1 to F12 are displayed.
(10) Status bar (!0)
The explanation of select command and status of toggle !0
key are displayed.
(11) Communication error
If there is no communication response in each inspection,
"Port open error" is indicated in Output window.
The followings are considered as the cause.
· The serial port is used with other PC applications.
· USB cable is not connected.
· Check the serial port setting (Port setup). (See page 29)
· Malfunction of Serial port and/or peripheral circuitry.
41
DBR10/DBR12/DBR15
NOTES ON THE MEASUREMENT ENVIRONMENT
The AMP assembly of DBR is using class D amplifier.
1. Insert AUX-0025 between classD amplifier and the
audio analyzer when you measure classD amplifier.
* Reason to which insertion of the Audio Precision AUX-0025 is
indispensable.
The high frequency noise caused by the switching drive is included
in the output signal of classD amplifier.
However, the audio analyzer doesn't generally assume the high
frequency. In a word, there is no tolerance to the high frequency.
Therefore, there is a possibility that the audio analyzer doesn't
operate normally when the high frequency is not removed with
AUX-0025.
Dummy Load
AMP ASSY of DBR
Balanced type shield wire Ground wire
AUX-0025
(Filter)
CHANNEL A CHANNEL B
ANALOG INPUT ANALOG OUTPUT ANALOG INPUT ANALOG OUTPUT
AUDIO ANALYZER Analog input
APX SERIES
SYSTEM ONE CH1 CH2
SYSTEM TWO
ATS-2
VP-7722A etc
Fig. 1
2. The reason to recommend the connection method
of "Fig. 1"
The "Fig. 2" is a block chart of the output composition of the AMP
assembly of DBR.
The output of the AMP assembly of DBR is single-ended, but
generally the output of D class amplifier is not necessarily a single-
ended output.
The output method of a recent classD amplifier takes various forms.
Therefore, the connection method with the interchangeability that
can correspond to any amplifier output method is preferable.
The connection method of "Fig. 1" can be compatible for the
amplifier output with the single-ended output and the bridge output,
and apply an