Sony MZ-R55 Diagram
MZ-R55
• Wavef orms
1
2
3
VOLT/DIV : 0.5V AC
TIME/DIV : 1µsec
IC501
#•
VOLT/DIV : 0.1V AC
TIME/DIV : 0.1msec
Approx. 0.5Vp-p
IC501 @ª
VOLT/DIV : 1V AC
TIME/DIV : 5msec
6-8. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 49 for IC Block Diagrams.
1.0±0.3Vp-p
2.4Vp-p
13.4msec
IC503
!¡
VOLT/DIV : 1V AC
4
TIME/DIV : 20nsec
2.4Vp-p
22.5MHz
IC503
!¶
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
• % : indicates tolerance.
Note:
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part
number specified.
• A : B+ Line.
• Power voltage is dc 3 V and fed with regulated dc power
supply from external power voltage jack.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PB
( ) : REC
• Voltages are tak en with a V OM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J : PB (digital)
c : REC (digital)
• Abbreviation
HK : Hong Kong model.
JE : Tourist model.
: Impossible to measure
∗
4
W or less unless otherwise
Note:
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
(Page 47)
(Page 43)
(Page 45)
(Page 48)
(Page 47)
(Page 43)
(Page 43)
(Page 45)
– 40 – – 41 – – 42 –
6-9. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 49 for IC Block Diagrams.
MZ-R55
(Page 42)
(Page 42)
(Page 42)
(Page 48)
(Page 48)
• Wavef orms
VOLT/DIV : 1V AC
5
TIME/DIV : 20nsec
2.3Vp-p
12kHz
IC802
$º
VOLT/DIV : 0.1V AC
6
TIME/DIV : 10µsec
1.4Vp-p
32kHz
IC805
8
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
• % : indicates tolerance.
• C : panel designation.
• A : B+ Line.
• H : adjustment for repair.
• Power voltage is dc 3 V and fed with regulated dc power
supply from external power voltage jack.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : PB
( ) : REC
• Voltages are tak en with a V OM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tolerances.
• Circled numbers refer to waveforms.
4
W or less unless otherwise
(Page 42)
(Page 42)
(Page 47)
– 43 – – 44 – – 45 –
MZ-R55
6-10. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — • Refer to page 49 for IC Block Diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
• % : indicates tolerance.
• C : panel designation.
• A : B+ Line.
• Power voltage is dc 3 V and fed with regulated dc power
supply from external power voltage jack.
• Voltage is dc with respect to ground under no-signal
condition.
no mark : PB
( ) : REC
4
W or less unless otherwise
– 46 – – 47 – – 48 –
• Voltages are tak en with a V OM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tolerances.
• Signal path.
F : PB (analog)
L : REC (analog)
J : PB (digital)
c : REC (digital)
• Abbreviation
HK : Hong Kong model.
JE : Tourist model.
(Page 42)
(Page 45)(Page 42)
(Page 43)
(Page 45)
(Page 42)
• IC Block Diagrams
1
2
3
4
8
7
6
5
V OUT
IN+1
VSS
IN–1
VDD
IN–2
IN+2
OUT2
MCLK
LRCK
BCLK
SDTO
SDTI
DIFO
DIFI
TST3
DCODE0
DCODE1
DCODE2
CS(SCK)
IC301 AK4517-VQ-L
CMODE
PD
RST
SSB
151413 16 24232217 18 19 20 21
VD
DGND
CDTI(SSO)
1
2
3
4
5
6
7
8
9
10
11
12
48
CLOCK
DIVIDER
AUDIO
I/F
CONTROLLER
CONTROL
REGISTER
I/F
CDTO
CCLK(SSI)
LIN1
VB
RIN1
VA
TST1
AGND
LIN2
VCOM
RIN2
DZF
TST2
LIN3
3839404142434445 3747 46
DACDBBDPGA
ROUT1
OPGAR
RIN3
HPF
ADO
IPGAL
36
ADCL
35
VCMC
34
VCMR
33
ADCR
32
IPGAR
31
VRAD
30
LOUT2
29
ROUT2
28
VRDA
27
OPGAL
26
LOUT1
25
IC303 AN7535SA-E1
MUTE TC
MUTE
VREF
BEEP IN
GAIN CONTROL
PRE GND
LINE NF1
LINE IN1
IN1
24 23
MUTE
VCC
1 7 10 122 3 54 6 8 9 11
VCC 1
22 21 20 19 18 17 16 15 14 13
VREF
RIPPLE
RIPPLE
VCC
DET.
VCC
BEEP
OUT 1
NC
VREF
CENTER OUT
GND
VREF
OUT 2
IN2
LINE OUT1
IC601 XC6383E401MR
LX
VLX LIMIT
VOUT
1
2
VDD
3
NC
2 STEP PFM CONTROL
BUFFERVREF
OSC 100/180kHz
5
VSS
4
– 49 –
LINE VCC
LINE IN2
LINE NF2
NC
LINE OUT2
IC302 TLV23621PW
IC501 CXA2523AR
MORFO47MORFI46RFO45OPN
48
–
+
RFA1
+
–
1I
2J
CVB
3VC
4A
IVR
5B
IVR
6C
IVR
7D
IVR
8E
IVR
9F
IVR
GSW
+
–
+
–
+
–
+
–
+
–
+
–
+
–
IV
RFA2
–
–
–
–
–
–
–
AA
BB
CC
DD
EE
FF
1
2
1
2
GRVA
EBAL
HLPT
OFST
GRV
+
–
+
–
FBAL
OPO43ADDC42COMPP41COMPO40AGCI39RF AGC38RF37PEAK
44
USROP
EE'
–1
–2
–2
–1
–
–
–
–
+
+
–
–
–
–
+
+
ESW
FF'
+
–
–
+
–
+
BPF3T
BPF22
WBL
WBL
RFA3
PTGR
PBSW
ABCDA
FEA
ATA
EFB TESW
RF AGC EQ
USRC
PEAK
BOTTOM
WBL
ADIP
PTGR
PEAK3T
P-P
PBH
AGC
WBL
3T
EQ
3T
3T WBL
DET
–1
–2
–1
–2
DET
TEMP
EQ
AUX
SW
BPFC
SEA
TEA
VI CONV
TG
TG
36
BOTM
35
ABCD
34
FE
33
AUX
32 ADFG
31 ADAGC
30 ADIN
29 ADFM
28 SE
27 CSLED
26 TE
25 WBLADJ
10PD
11APC
12APCREF
+
–
TEMPERATURE
SENSOR
AUXSW
COMMAND
+
–
14
13
GND
TEMPI
15
TEMPR
SCRI - PARA
DECODE
17
16
SWDT
18
SCLK
XLAT
19
XSTBY
BGR
VREF
20
F0CNT
24
23
22
21
EQADJ
3TADJ
VCC
VREF
IC901 NJU7015MIC803 S-8110ANP-DSB-T2
VDD
1
VOUT
2
NC
3
4
VSS
V OUT
IN–1
IN+1
VSS
1
2
3
4
8
VDD
OUT2
7
IN–2
6
5
IN+2
– 50 –
IC505 MPC17A58DTBEL
VG
SPOFF
PSB
35 3436
VG
LGND
B OUT
B OUT B
PGND35
F03
VM3
R03
26 25272829 21 2024 23 192233 32 31 30
PGND34
FM0
VM4VCFM1
VC
RI3
FI3
RI2
CONTROLCONTROLCONTROLCONTROLCONTROL
VM5
PRE-DRIVER
AOUT B
PGND15
PRE-DRIVER
HALF
BLIDGE
DRIVER
PRE-DRIVER
H BLIDGE
DRIVER
CH3
F01
VM1
R01
F02
PGND12
PRE-DRIVER
14
R02
VM2
H BLIDGE
DRIVER
CH2
PGND2
PRE-DRIVER
STEP
MOTOR
DRIVER
321 4 5 6 7 8 9 10 11 12 13 15 161718
FS1
PGND5
RS1
A OUT
IC509 MN41X17400CTT
PRE-DRIVER
FI1
RI1
H BLIDGE
DRIVER
CH1
FI2
VDD
DQ0
DQ1
RAS
A10
A01
A02
A03
A04
VDD
24
CLOCK GENERATOR
1
2
3
WE
4
5
NC
5
7
8
9
10
11
12
ON CHIP
VSS
GENERATOR
ROW
ADDRESS
BUFFER
COLUMN
ADDRESS
BUFFER
CBR REFRESH
COUNTER
ROW
DECODER
WORD
DRIVER
MEMORY
CELL
SENSE
AMP
COLUMN
DECODER
I/O
SELECTOR
CLOCK
GENERATOR
DATA
INPUT
BUFFER
DATA
OUTPUT
BUFFER
VSS
23
DQ3
22
DQ2
21
CAS
OE
20
A10
19
A09
18
A08
17
16
A07
15
A06
14
A05
– 51 –
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