Service manual

IC601
IC603
IC602
IC751
CB601
CB602
CB603
CB604
CB605
CB606
CB607
A
1
2
3
4
5
6
7
8
9
10
BCDEFGH I JK
L MN
YSP-500/HTY-750
70
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★ Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
DSP 2/2
5.2
5.2
0.2
0
5.2
0
0.2
0
0.2
0
5.2
0
0.2
0
0.2
0
5.2
0
0.2
5.0
0
2.5
2.5
0
2.5 2.5
5.0
5.0 3.3
1.6
0
3.3
0.4
3.2 0.5
3.4
3.4
1.2 1.2
0.6
0 0
1.7
1.7 5.0
2.5 2.4 2.2
5.2
5.2
0
2.4 0 5.0
0.2
0 5.2 0 0.2 0 0.2 0 5.0 0 0.2 5.0 0
2.5
3.3
5.0 0
5.1
5.0
5.1
5.0
3.3
0
0
0.2
0
5.0
0
0.2
0
0.2
0
5.0
0
0.2
0
0.2
0
5.0
0
0.2
5.0
0
2.5
0
5.0
5.1
5.0
0.2
0
5.0
0
0.2
0
0.2
0
5.0
0
0.2
0
0.2
0
5.0
0
0.2
5.0
0
2.5
2.5
0
2.5 2.5
5.0
5.0 3.3
1.6
0
3.3
0.4
3.2 0.5
3.4
3.4
1.2 1.2
0.6
1.7
0
1.7
1.7 5.0
2.2
5.1
5.0
0
2.5 0 5.0
0.2
0 5.0 0 0.2 0 0.2 0
5.0
0 0.2 5.0 0
2.5
3.3
3.4 0
5.1
5.0
5.1
5.0
3.3
0
0
0.2
0
5.0
0
0.2
0
1.7
10.3
3.4
1.7
0.6
1.7
1.7
0
0
10.3
10.3
1.5
1.5
1.5
0
0
1.5 1.5 1.5
10.3 10.3
10.3 10.3 1.5 1.5 1.5 0 0
1.5
1.5 1.5 10.3
10.3
0
0
0.1
0
3.3
0
3.4
0
5.1
5.1
5.1
0
3.3
0
0
0.1
0
0
0
3.4
3.4
3.4
0.2
0
5.0
0
0.2
0
0.2
0
5.0
0
0.2
5.0
0
2.5
0
5.0
B-1
WOOFER L OUT
SPEAKER OUT SPEAKER OUT
FRONT IN
SURROUND IN
CENTER IN
WOOFER IN
SUBWOOFER IN
SUBWOOFER OUT
IC601, 602: YDA141-SZ
Sound projector
/IRQ#1
Chip#14
D4-SPJ
D4-SPJ
Chip#0
XIN
CLKC
CLKC
XIN
/IRQ#14
/IRQ#15
/IRQ#0-
High
SCK
SO
SI
/CS
/IRQO
/IRQI
SDO[3:0]
/IRQI
WCK2
BCKO
/IRQO
/IRQI
/CS
SCK
SO
SI
/TEST
PWMSW
DACENABLE[1:0]
TESTOCP
TESTOTP
MASKOCP
MASKOTW
DAT[15:0]
WCK2
LT[9:0]
FSHOP[1:0]
GAINA[1:0]
GAING[1:0]
ENABLE[7:0]
/OCPO[7:0]
/SPERR[7:0]
AMHOP
SPCHK
/UVLC
/CKDET
/OTP
/OTW
MASKUVLO
MASKCKDET
MASKOTP
EXT[0:1]
DEGLITCH
/TRIDET
CLKC
CLKC
WCK
MCK
BCK
DSI[3:0]
SCK
SO
SI
/CS
/IRQO
Chip#15
D4_core
Speaker A~H
OUTPC
OUTMC
XIN XOUT
/DISABLE
/ERROUT
O/Dout
/IC
MOD[1:0]
MCK=24 576MHz
WCK fs=32/44 /48k*2
Fixed
SO is bus connected by /CS.
IRQ terminals are connected in
daisy chain, forming an OR circuit.
TI/DSP
SA_DSP
Beam & NoiseShaper
DIR
For DAC monitor
To be modified if there are many SDC latches
8ch D4
DAC & PDD Amp
CH_A~H
DAC-I,J
Microprocessor interface complies with EVE.
Quarts Crystal circuit
Microprocessor
Bus connected to
microprocessor
POINT B-1 XL601 (Pin 48 of IC601)
IC751: YDA147-SZE2
Digital audio power amplifier
Power
Limit
INRP
VREF
AVDD
PVDDREG
CKIN
MUTEN
SLEEPN
GAIN1
GAIN0
PLIMIT
NCDRC1
NCDRC0
GAIN0
PLIMIT
AVDD PVDD
GAIN1
GAIN0
GAIN1
PLIMIT
INRM
Rch
Lch
PVDDMR
PVSSR
PVDDPR
MUTE
SLEEPN
MUTEN
Feed Back
Feed Back
Feed Back
Feed Back
OUTPR
OUTMR
PWM
Amp
Oscillator
UVLO
Non-Clip
DRC
Control
3.3V
Regulator
VREF/
REF
Level
Shift
Logic
Gain
Control
Power
Limit
INLP
INLM
PVDDML
PVSSL
PVDDPL
OUTPL
OUTML
PWM
Amp
Level
Shift
Logic
Gain
Control
MUTE
OTP
MUTE
Control
OCP
PROTN
CKOUT
1NC
NC
NC NC
NC
NC
SLEEPN
PROTN
MUTEN
CKOUT
CKIN
NCDRC0
GAIN0
GAIN1
NCDRC1
PVDDML PVDDML PVDDPL PVDDPL OUTML OUTML OUTML OUTPL OUTPL OUTPL PVSSL PVSSL
PVDDPR PVDDPR
OUTPR OUTPR OUTPR
PVSSR PVSSR
OUTMR OUTMR OUTMR
PVDDMR PVDDMR
PVDDREG
AVDD
INLP
INLM
INRM
INRP
VREF
AVSS
PLIMIT
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
48 47 46 45 44 43 42 41 40 39 38 37
13 14 15 16 17 18 19 20 21 22 23 24
BCKIN
LRCIN
DIN
MCLK DVDDAVDD
MUTEBSDIDEMSCKDSDLATI2SMODE CSBIWL ZERO
VOUTL
VOUTR
VMID
AGND DGNDVREFP VREFN
16 15
14
20 19 18 17 5
67
1
2
3
413
12
11
8
910
IC603: WM8728
24-bit, 192 kHz stereo DAC
DIGITAL POWER AMP.DIGITAL POWER AMP.
D-AMP
DRIVER
TWEETER x 8
DRIVER
TWEETER x 8
DRIVER
WOOFER R
DRIVER
WOOFER L
No replacement part available.
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4.7/6.3
to INPUT (1)_CB504
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