XR-5880R/5890R
AEP Model
UK Model
SERVICE MANUAL
Photo: XR-5890R
Model Name Using Similar Mechanism
XR-C6100R
Tape Transport Mechanism Type
MG-25G-136
SPECIFICATIONS
FM/MW/LW CASSETTE CAR STEREO
MICROFILM
XR-5880R/5890R
6-2. SCHEMATIC DIAGRAM — MAIN (1/2) SECTION — • Refer to page 29 for IC Block Diagrams.
• Waveforms
1
5.4Vp-p
32.8KHz
IC501 &£
2
5.6Vp-p
3.68MHz
IC501 (£
3
5.4Vp-p
4.332MHz
IC51 4
Note on Schematic Diagram:
• 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 1/4 W or less unless otherwise
specified.
¢
•
: internal component.
• C : panel designation.
• U : B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : FM
<
> : TAPE PLAYBACK
: Impossible to measure
∗
• Voltages are taken with a VOM (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.
F : FM
f : AM (MW)
E : TAPE PLAYBACK
• Abbreviation
G
: German model.
(Page 23, 24)
– 21 –
– 22 –
XR-5880R/5890R
6-3. SCHEMATIC DIAGRAM — MAIN (2/2) SECTION —
• Refer to page 29 for IC Block Diagrams.
(Page 21, 22)
Note on Schematic Diagram:
• 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 1/4 W or less unless otherwise
specified.
¢
•
: internal component.
• C : panel designation.
• U : B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : FM
<
> : TAPE PLAYBACK
: Impossible to measure
∗
• Voltages are taken with a VOM (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.
F : FM
f : AM (MW)
E : TAPE PLAYBACK
• Abbreviation
G
: German model.
(REMOTE IN)
(Page 27)
– 23 –
– 24 –
XR-5880R/5890R
6-5. SCHEMATIC DIAGRAM — PANEL SECTION —
(Page 23)
Note on Schematic Diagram:
• 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 1/4 W or less unless otherwise
specified.
¢
•
: internal component.
• C : panel designation.
• U : B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : FM
<
> : TAPE PLAYBACK
: Impossible to measure
∗
• Voltages are taken with a VOM (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.
– 27 –
• Circled numbers refer to waveforms.
• Signal path.
F : FM
f : AM (MW)
E : TAPE PLAYBACK
• Abbreviation
G
: German model.
– 28 –
• IC Block Diagrams – MAIN Board –
VDD
+IN1 3
6
–IN2
SEEK/RECP
AMP
VEE 4
5
+IN2
AFIN
MAD
PSWN
SIGNAL QUALITY
DECODER
RDS/RDBS
DEMODULATOR
DATA
IIC BUS SLAVE
TRANSCEIVER
4
3
5
6
7
8
DAVN
1 2
8 VS
VSSD
9 OUT1
OSCO
VCC 3
BUFFER
INTERFACE
REGISTER
OSCILLATOR
& CLOCK
TCON
18BIT
4
DATA
OSCI
REF
IN1 2
22BIT
5
CLOCK
RDS/RDBS
DECODER
10 N.C.
TEST
CONTROL
18BIT
9
10
7 OUT2
OUT-1
VDD2
29
28 27
26
25
24
23 22 21
24dB
120µ/70µ
TDA7462D
MSSW
I/O-1
I/O-2
30
NC
SR
NC
CE
DIN
CK
DOUT
LINEOUT2
12
DIREF
10 11
AUXIN2
9
CXA2509AQ-T4
TAPEIN2
8
IC301
GND
7
6 N.C.
PBOUT2
3 4 5 6
GND 5
PBEQ2
2
OUT-2
1
OSC
OUTPUT
PORT
XO
I/O
PORT
VDD2
IN2 4
SERIAL
INTERFACE
IC401
57kHz
8th ORDER
BAND-PASS FILTER
CLOCK
GND 1
PAUSE
DETECTOR
POWER SUPPLY
& RESET
LB1638M
40BIT SHIFT
REGISTER
ON/OFF
12 11
VDDD
12BIT
PROGRAMMABLE
COUNTER
20BIT
IF COUNTER
REFERENCE
DIVIDER
OSCILLATOR
13
4
IC361
SIG
14
+
PRESCALLER
PHASE
COMPARATOR
15
CLOCKED
COMPARATOR
CONTROL LOGIC
SEEK/RECP
16
MRO
MPTH
REGULATOR
17
SCL
AMP
– +
4BIT SWALLOW
COUNTER
18
MULTI
PATH
DETECTOR
VCC
– +
19
SDA
AMP
20
7 OUT2
–IN1 2
2CH
+
VDDA
VDD
IFC
1CH
VSSA
16 15 14 13
MPX
17
8 VCC
VREF
AM IN
18
OUT1 1
SAA6588T-118
SCOUT
D-GND
19
IC51
CIN
FM CP OUT
20
BA4558F
LVIN
VT
22 21
FM IN
AM CP OUT
IC90
VCC
24 23
REG
A-GND
TB2118F (EL)
XI
IC1
T2
+ –
20 MSMODE
– +
28
27
26
25
24
23
VOLUME
CONTROL
CIRCUIT
SOFT
MUTE
TREBLE/
BASS
CONTROL
CIRCUIT
FRONT
FADER
VOICE BANDPASS
HP
22 OUT FL
PBFIN2 34
16 NC
FWD/RVS
VCT 35
PBGND 36
VCT
MS ON/ 15 NC
OFF
VCC
LPF
+
–
DETECT
14 MSOUT
PBFIN1 37
21 OUT FR
F3
F1
PBREF1 38
13 DGND
X1
PBRIN1 39
PBFB1 40
REAR
FADER
12 MSTC
20 OUT RL
T1
120µ/70µ
SUBWOOFER
LP
BEEP
1
2
3
4 5
6
7
8
9
10
TAPEIN1
AUXIN1
MSLPF
LINEOUT1
NC
NC
G2FB
19 OUT RR
24dB
VCC
REAR
FADER
11 G1FB
PBOUT1
LOUDNESS
CONTROL
CIRCUIT
19 DRSW
18 TAPESW
17 INSW
TAPE EQ
+
COMPANDER
REAR SIDE
SELECTOR
TAPE/AUX
F2
PBREF2 33
LP
FRONT
FADER
INPUT
GAIN
X1
PBEQ1
FRONT SIDE
SELECTOR
LOUDNESS
CONTROL
CIRCUIT
MS
MODE
+ –
1
2
3
4
5
6
7
8
9
10
11
12
13
INPUT
GAIN &
AUTO
ZERO
NR BIAS
PBFB2 31
PBRIN2 32
– +
SE1L
SE1R
MD+
MD–
CDL+
CDL–
CDR–
CDR+
PDR
PDGND
PDL
SE2L
SE2R
INPUT MULTIPLEXER &
MIXING STAGE
PAUSE
DETECT
SE3L
SE3R
MUTE
SDA
SCL
PAUSE
FADER
18 SUBOUT+
SUBWOOFER
OUT
17 SUBOUT–
SDA
DIGITAL CONTROL CIRCUIT
IIC
BUS
SCL
POWER
SUPPLY
CREF 14
– 29 –
16 VDD
15 GND
– 30 –
6
7
NC
VDD
AMP
VCC
10
11
12
GND
9
FM
8
AM
5
ANT
2 3 4
COM
1
MODE2
MODE1
STB
–
+
+
–
+
–
IC671
+
–
TAB
PW-GND
OUT2–
ST-BY
OUT2+
Vcc1
OUT1–
PW-GND1
OUT1+
SVR
IN1
IN2
S-GND
IN4
IN3
AC-GND
OUT3+
PW-GND3
OUT3–
Vcc2
OUT4+
MUTE
OUT4–
PW-GND4
DIAGNOSTICS OUT
IC611
TDA7385
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
BA3918-V3
REGULATOR
OVER VOLTAGE
PROTECT
– 31 –
6-6. IC PIN FUNCTION DESCRIPTION
• IC501 MASTER U-COM (MB90574PFV-G-177-BND)
Pin No.
1
Pin Name
SEKOUT
I/O
O
Seek out
2
AFSEEK
O
AF seek
3
–
4
ST IND
5
TUMUTE
6
FM ON
O
FM_ON output
7
TU ON
O
TUNER_ON output
8
VCC
–
Power supply terminal +5V
9
–
–
Not used
10
BUSON
O
Bus ON control output
11
SYSRST
O
SYSTEM RESET output
12
DOORSW
I
Door OPEN/CLOSE detection input
13
LCDSO
O
LCD serial data output
14
LCDCKO
O
LCD serial clock output
15
BEEP
O
BEEP output
16
LCDCE
O
LCD chip enable output
–
I/O
O
Function
Not used
Stereo display input and control MONO output
Tuner mute output
17
UNISI
I
BUS serial data input
18
UNISO
O
BUS serial data output
19
UNICKI
I
BUS serial clock input
20
SD IN
I
Signal detection input
21 to 23
–
–
Not used
24
SIRCS
I
Remote commander (infrared) input
25
PLLSI
I
PLL data input
26
PLLSO
O
PLL data output
27
PLLCKO
O
PLL clock output
28
PLLCE
O
PLL chip enable output
29
ILL ON
O
Illumination power control output
30 to 31
–
–
Not used
32
NOISE ON
O
NOISE DET discharge control output
33
VSS
–
Ground
34
C
–
Capacity connection terminal for power supply stabilization
35
AD ON
O
AD conversion power supply control output
36
RE IN0
I
Rotary encoder input 0
37
RE IN1
I
Rotary encoder input 1
38
DVcc
–
Power supply input for D/A
39
DVss
–
Ground for D/A
40, 41
–
–
Not used
42
AVcc
–
Power supply input for analog
43
AVRH
–
A/D converter VRef + input
44
AVRL
–
A/D converter VRef – input
45
AVss
–
Ground for analog
46
KEYIN0
I
KEY input 0
47
KEYIN1
I
KEY input 1
48
RC INO
I
Rotary commander input
49
DSTSEL
I
Destination setting
50
NOISE DET
I
NOISE DET, Noise level input for SEEK
51
D BASS
I
D_BASS KEY input
52
MTP
I
Tuner multipath input
53
VSM
I
S_meter voltage detection input
– 32 –
Pin No.
54
Pin Name
Vcc
I/O
–
Function
Power supply terminal +5V
55
RAMBU
I
RAM reset detection input (Non RDS)
56
PW SEL
I
Power select initial setting input
57
–
–
Not used
58
TESTIN
I
Test mode detection input
59
DOORIND
O
Not used
60
–
–
Not used
61
COLOR SW
I
Color switching, L:2 color, H:Single color
62
COLER SEL
I
Color selection, L:AMBER, H:GREEN
63
VSS
–
Ground
64
–
–
Not used
65
MUTE
O
System mute output terminal
66
COSTOM FILE
I
Custom file, L:Non, H:Yes
67
CD-TEXT
I
CD text, L:Non, H:Yes
68
AMPMUT
O
Power amplifier mute control output terminal
69
FLASH W
I
Flash memory writing mode detection input
70
I2C SIO
I/O
71
I2O CKO
O
Electronic Vol & RDS serial clock output
72
RC IN1
I
Rotary commander input
73
X1A
–
Low speed oscillator connection terminal (32.768 KHz)
74
X0A
–
Low speed oscillator connection terminal (32.768 KHz)
75
DAVN
I
RDS signal quality detection input
76
KEYACK
I
Keyack knowledge input
77
BU IN
I
Backup detection input terminal
78
ILLIN
I
ILLIN signal detection input terminal (VAG only)
79
TELATT
I
Telephone ATT detection input
80
NOSESW
I
Front panel detachment/attachment detection input terminal
81
ACCIN
I
ACC detection input terminal
82 to 85
Electronic Vol & RDS serial data input/output
–
–
Not used
86
HSTX
–
Hardware standby input terminal
87
MD2
–
To Vss
88
MD1
–
To Vcc
89
MD0
–
To Vcc
90
RSTX
I
Microprocessor reset input terminal
91
Vss
–
Ground
92
X0
–
High speed oscillator connection terminal ( MHz)
93
X1
–
High speed oscillator connection terminal ( MHz)
Vcc
–
To Vcc
–
–
Not used
94
95 to 99
100
9K/10K
I
9K/10K step switching detection terminal
101
–
–
Not used
102
AMTLIN
I
Auto metal detection terminal
103
AMSIN
I
Song presence/absence detection input during AMS
104
REEL
I
Reel rotation detection input
105
POS0
I
Position signal detection input 0
106
POS1
I
Position signal detection input 1
107
POS2
I
Position signal detection input 2
108
POS3
I
Position signal detection input 3
109
LM EJ
O
Loading motor control output (EJECT)
110
LM LD
O
Loading motor control output (LOAD)
111
CM ON
O
Tape capstan motor control output
– 33 –
Pin No.
112
Pin Name
TAPEON
I/O
O
Function
TAPE power supply control output
113
N ROUT
O
FOR/REV control output
114
AMSON
O
AMS control output
115
MTLON
I/O
Metal control input/output
116
DOLON
I/O
DOLBY control input/output
117
TAPMUT
O
Audio signal selection control output terminal
118
AMPON
O
Power IC standby control output
119
Vss
–
Ground
120
PW ON
O
System power supply control output
– 34 –
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