XR-C8220 [SONY]
SERVICE MANUAL; 维修手册
| 型号： | XR-C8220 |
| 厂家： | 
SONY CORPORATION |
| 描述： | SERVICE MANUAL |
| 文件： | 总14页 (文件大小：1637K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
XR-C8220
SERVICE MANUAL
US Model
E Model
For RM-X4S (Remote Commander),
please refer to RM-X4S Service Manual
(9-925-698-∏) previously issued.
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trade-
marks of Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
XR-C9100
MG-25D-136
SPECIFICATIONS
FM/AM CASSETTE CAR STEREO
MICROFILM
XR-C8220
6-8. SCHEMATIC DIAGRAM – MAIN Section (1/4) – • See page 28 for Waveforms. • See page 47 for IC Block Diagrams.
(Page 35)
(Page 39)
(Page 38)
– 33 –
– 34 –
XR-C8220
6-9. SCHEMATIC DIAGRAM – MAIN Section (2/4) – • See page 48 for IC Block Diagrams.
(Page
34)
(Page
38)
(Page 40)
– 35 –
– 36 –
XR-C8220
6-10. SCHEMATIC DIAGRAM – MAIN Section (3/4) – • See page 28 for Waveforms. • See page 47 for IC Block Diagrams.
(Page 34)
(Page
35)
(Page
39)
– 37 –
– 38 –
XR-C8220
6-11. SCHEMATIC DIAGRAM – MAIN Section (4/4) – • See page 49 for IC Block Diagrams.
(Page 36)
(Page
34)
(Page 46)
(Page
38)
(Page 46)
(Page 46)
(Page 46)
– 39 –
– 40 –
XR-C8220
6-13. SCHEMATIC DIAGRAM – PANEL Section – • See page 28 for Waveforms.
(Page 46)
– 43 –
– 44 –
XR-C8220
6-14. PRINTED WIRING BOARD – SUB/INVERTER Section –
6-15. SCHEMATIC DIAGRAM – SUB/INVERTER Section – • See page 28 for Waveform.
(Page 32)
(Page 42)
(Page 40)
(Page 43)
(Page 31)
(Page 40)
(Page 40)
(Page 32)
(Page 40)
(Page 32)
– 45 –
– 46 –
• IC Block Diagrams
– MAIN Board –
IC10 BU2624FV-E2
IC201 LB1638M
10
9
1
N.C.
GND
20 XOUT
19
VSS
PHASE
DET
18 PD
2
OUT1
IN1
REFERENCE
DIVIDER
17
16
VDD
XIN
1
8
7
VS
FMIN
MAIN
COUNT
PRESCALER
VCC
IN2
3
4
OUT2
2
4
5
CE
CK
DA
I/O
CTL
SHIFT REGISTER LATCH
AMIN
P2
15
14
5
6
N.C.
GND
CD
6
IF COUNT
CTL
P0
7
20BIT COUNT
13 IFIN
9
P1
P3
10
12
11
SD
P4
IC250 CXA2510AQ-T4
30
29 28 27 26
25
24
23 22 21
NR
120µ/
70µ
T2
+
–
20
MSMODE
19 DRSW
18
+
–
NR BIAS
TAPE/AUX
TAPE EQ
FWD/RVS
VCC
MS
MODE
PBFB1 31
X1
PBRIN1 32
TAPESW
F2
33
34
PBREF1
PBFIN1
17 INSW
NR
MODE
16 NRSW
VCT 35
VCT
15 NC
PBGND
36
MS ON/
OFF
+
LPF
+
–
DETECT
14 MSOUT
13 DGND
37
PBFIN2
F3
F1
PBREF2 38
X1
PBRIN2
PBFB2
39
40
12 MSTC
11 FF
–
+
–
+
OFF/B
NR
T1
120µ/
70µ
2
3
4
5
6
7
8 9 10
1
– 47 –
IC301 CXA1946BQ-T6
36
35 34
LOUD
33
32
31
30 29 28 27 26
25
24 FNTO1
23 REO1
VOLUME
8dB STEP
VOLUME
1dB STEP
TONE
FADER
GAIN12 37
GAIN11 38
IN14 39
VCTBUFF
VCTBUFF
VCTBUFF
IN13 40
IN12 41
IN11 42
LATCH
CONTROL
22 CE
LATCH
SHIFT
21 CLK
20 DGND
19 GND
ZCDET
45k
45k
REGISTER
18 VCC
IN21 43
IN22 44
17 VCT
VCTBUFF
VCTBUFF
VCTBUFF
16 DATA
15 TIMER
IN23 45
IN24 46
GAIN21 47
GAIN22 48
14 REO2
VOLUME
8dB STEP
VOLUME
1dB STEP
LOUD
TONE
FADER
12
13 FNTO2
1
2
3
4
5
6
7 8 9 10 11
IC350 CXA1846BN-T4
IC310, 410 TDA8574 (T)
VCCL
INL
1
2
20
19
18
17
16
15
14
13
12
11
VCCL
BUFFER
CL+
16
–
+
15 CL–
SVRL
3
8dB STEP
VOLUME
1dB STEP
VOLUME
LIFT
AMP
BUFFER
VCT
BUFFER
REFERENCE
LATCH
CONTROL
ZC
DET
LATCH
VCCL
LGND
14
13
SIGNAL
AMP
OUTL
4
5
INML
INMR
SHIFT
REGISTER
VCCR
12
OUTR
8dB STEP
VOLUME
1dB STEP
VOLUME
SIGNAL
AMP
+
–
11 RGND
REFERENCE
VCCR
1
2
3
4
5
6
7
8
9
10
LIFT
AMP
BUFFER
BUFFER
CR–
CR+
SVRR
INR
6
10
9
7
8
VCCR
– 48 –
IC502 BA3918-V3
IC602 BA8270F-E2
BUS ON
SWITCH
14 VCC
BUS ON
1
2
3
REGULATOR
RESET
SWITCH
13
RST
RST
12 BUS ON
11 CLK IN
10 BU IN
BATTERY
SWITCH
BATT
OVER VOLTAGE
PROTECT
4
5
6
CLK
VREF
DATA
–
–
–
–
9
8
DATA IN
+
+
+
+
GND
7
DATA OUT
2
3
4
5
6
7
8
9
10
11
12
1
IC650 MSM6656A-687GS-KR1 (US model)
IC650 MSM6656A-689GS-KR1 (E model)
24
GND
AOUT
NAR
NC
23
22
21
20
1
VDD
XT
XT
2
3
4
5
6
7
8
BUSY
TIMMING
BEEP TONE
NC
OSC
LPF
19
18
NC
NC
CONTROLLER
GENARATOR
CMD
NC
MELODY
GENARATOR
12 BIT
DAC
I/O
INTERFACE
NC
ST
17
RESET
12
PCM
SYNTHSIZER
17 BIT
ADDRESS
COUNTER
DATA
CONTROLLER
ADPCM
SYNTHESIZER
1M BIT ROM
EDITING ROM &
ADDRESS ROM
CONTAINS 22KBIT
8
17 BIT
MULTIPLEXER
7
16 CH
9
15 16/SD
10
11
ADDRESS
&
COMMAND
CONTROLLER
15/SI
14
13 14
10
12/PoRT0 11
13/PoRT1
12
– 49 –
6-16. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC600 MB90574PFV-G-182-BND (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Function
Seek control signal output to the FM/AM tuner unit (TUX10)
AM mode: Used for IF count output/SD output request/AGC cut at SEEK or BTM
FM mode: Used for SD speed up at SEEK, BTM, or AF
“L” is output at tuner off
1
SEEKOUT
O
PLL low-pass filter time constant selection signal output at AF SEEK
“H” is output when AF SEEK Not used (open)
2
3
AF-SEEK
WIDE
O
O
IF band select signal output to the FM/AM tuner unit (TUX10) “H”: wide mode
In receiving FM signals, interference noise from adjacent stations is removed by narrowing the
IF band automatically in the tuner unit so as to raise the selectivity, but in this case, the distortion
may increase and accordingly, the IF band is widened forcibly
FM stereo broadcasting detection signal input from the FM/AM tuner unit (TUX10), or forced
monaural control signal output to the FM/AM tuner unit (TUX10)
4
ST-MONO
I/O
“L” is input in the FM stereo mode, or “L” is output in the forced monaural mode
5
6
TUNMUTE
FM-ON
O
O
Muting on/off control signal output of the FM and AM tuner signal “H”: muting on
FM system power supply on/off control signal output to the BA3918 (IC502)
“L”: AM power on, “H”: FM power on
Tuner system power supply on/off control signal output to the BA3918 (IC502)
“H”: tuner power on
7
TU-ON
O
8
VCC
—
O
O
O
I
Power supply terminal (+5V)
9
CSV-RST
BUS-ON
SYSRST
DOORSW
LCD SO
LCD CKO
BEEP
Reset signal output to the CSV (IC650) “L”: reset
10
11
12
13
14
15
16
17
18
19
Bus on/off control signal output to the SONY bus interface (IC602) “L”: bus on
Reset signal output to the SONY bus interface (IC602) “L”: reset
Front panel open/close detection signal input “L” is input when the front panel is closed
Serial data output to the liquid crystal display driver (IC900)
Serial data transfer clock signal output to the liquid crystal display driver (IC900)
Beep sound drive signal output terminal
O
O
O
O
I
LCD CE
UNISI
Chip enable signal output to the liquid crystal display driver (IC900) “H” active
Serial data input from the SONY bus interface (IC602)
UNISO
O
O
Serial data output to the SONY bus interface (IC602)
UNICKO
Serial data transfer clock signal output to the SONY bus interface (IC602)
Station detector detect input from the FM/AM tuner unit (TUX10)
Stop level for SEEK, BTM, etc. is determined SD is present at input of “H”
20
SD-IN
I
21
22
23
24
25
26
27
28
O
O
O
I
CSV-SO
CSV-CKO
CSV-CE
SIRCS
Serial data output to the CSV (IC650)
Serial data transfer clock signal output to the CSV (IC650)
Chip enable signal output to the CSV (IC650) “L” active
Sircs remote control signal input from the remote control receiver (IC901)
PLL serial data input from the FM/AM PLL (IC10)
PLLSI
I
PLLSO
O
O
O
PLL serial data output to the FM/AM PLL (IC10)
PLLCKO
PLLCE
PLL serial data transfer clock signal output to the FM/AM PLL (IC10)
PLL chip enable signal output to the FM/AM PLL (IC10) “H” active
Power on/off control signal output of the illumination LED and liquid crystal display driver
(IC900) “H”: power on Depends on initial setting of power select switch (S600)
Power select switch (S600) on: “H” output at the accessory on
29
ILL-ON
O
Power select switch (S600) off: “H” output at the power on
Dimmer control in/out terminal
At initial mode: The presence of dimmer select function is set (if this status, if “L” is input, the
dimmer select function is present)
At normal mode: LCD back light brightness control signal output
30
31
DIMMER
TIR-IND
I/O
O
LED drive signal output of the TIR indicator “H”: LED on Not used (open)
– 50 –
Pin No.
32
Pin Name
LCD INH
VSS
I/O
O
Function
Blank indicate control signal output to the liquid crystal display driver (IC900) “L”: no display
Ground terminal
33
—
—
34
C
Connected to coupling capacitor for the power supply
A/D converter power control signal output terminal
35
AD-ON
O
When the KEYACK (pin &§) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input
36
37
38
39
40
RE-IN0
RE-IN1
DVCC
DVSS
—
I
I
Dial pulse input of the rotary encoder (RE900)
(for VOLUME/BASS/TREBLE/BALANCE/FADER control)
—
—
I
Power supply terminal (+5V) (for D/A converter)
Ground terminal (for D/A converter)
Not used (fixed at “L”)
View field angle control signal is output when front panel is fully opened
“H”: front panel is fully opened
41
LCDANG
O
42
43
44
45
AVCC
AVRH
AVRL
AVSS
—
I
Power supply terminal (+5V) (for A/D converter)
Reference voltage (+5V) input terminal (for A/D converter)
Reference voltage (0V) input terminal (for A/D converter)
Ground terminal (for A/D converter)
I
—
Key input terminal (A/D input) (LSW900, S900, LSW901 to LSW908) OFF, SEEK/AMS +
+ ) = 0 – , MODE *, SOURCE, SOUND, DSPL, SHIFT, 1, 2, 3 keys input
46
47
KEYIN0
KEYIN1
I
I
Key input terminal (A/D input) (SW801, LSW909, LSW912 to LSW918)
6, LIST, 10, 9, 8, 7, 6, 5, 4 keys input
48
49
50
RC-IN0
DSTSEL0
DSTSEL1
I
I
I
Rotary remote commander key input terminal (A/D input)
Destination setting terminal (fixed at “L”)
Destination setting terminal (fixed at “H”)
Destination setting terminal
(US model: fixed at 3/4 voltage, E model: frequency select switch input)
51
52
53
54
DSTSEL2
MTP
I
I
Multi-path detection signal input from the RDS decoder Not used (open)
FM and AM signal meter voltage detection input from the FM/AM tuner unit (TUX10)
(A/D input)
VSM
I
VCC
—
Power supply terminal (+5V)
Internal RAM reset detection signal input from the RN5VD33AA (IC501)
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset
55
RAMBU
I
56
57
58
POWSEL
EQ-SEL
TESTIN
I
I
I
Power select switch (S600) input terminal “L”: off (halt mode), “H”: on (operation mode)
Not used (fixed at “H”)
Setting terminal for the test mode “L”: test mode, Normally: fixed at “H”
LED drive signal output of the tape window illumination and 6 indicators (LED800, 802)
“H”: LED on “H” is output to turn on LED when front panel is opened
59
60
PACK-IND
TIR-PLAY
O
O
AM/TIR selection signal output terminal “L”: AM signal, “H”: TIR signal
Not used (pull down)
61
62
63
64
65
SUB-SW1
SUB-SW0
VSS
O
O
Sub woofer output cut-off frequency select signal output terminal
Sub woofer output cut-off frequency select signal output terminal
Ground terminal
—
O
VOLCE
MUTE
Chip enable signal output to the main electrical volume (IC301) “H”: active
Audio line muting on/off control signal output terminal “H”: muting on
O
VOLSO/
SUBSO
66
67
O
O
Serial data output to the main electrical volume (IC301) and sub electrical volume (IC350)
VOLCKO/
SUBCKO
Serial data transfer clock signal output to the main electrical volume (IC301) and sub electrical
volume (IC350)
– 51 –
Pin No.
Pin Name
I/O
Function
68
SUBCE
O
Chip enable signal output to the sub electrical volume (IC350) “H” active
Internal flash memory data write mode detection signal input terminal “L”: data write mode
Not used (fixed at “H” in this set)
69
I
FLASH-W
70
71
72
73
74
IIC SIO
IIC CKO
RC-IN1
X1A
I/O
O
I
Two-way data bus with the external device Not sued (fixed at “H”)
Bus clock signal output to the external device Not sued (pull-up)
Rotary remote commander shift key input terminal “L”: shift
Sub system clock output terminal (32.768 kHz)
O
I
X0A
Sub system clock input terminal (32.768 kHz)
Data transmit completed detect signal input from the RDS decoder “H” active
Not sued (open)
75
76
77
DAVN
KEYACK
BU-IN
I
I
I
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function
and eject keys in the power off status On at input of “H”
Battery detect signal input from the SONY bus interface (IC602) and battery detect circuit
“L” is input at low voltage
Auto dimmer control illumination line detection signal input terminal
“L” is input at dimmer detection
78
79
80
ILL IN
I
I
I
TEL-ATT
NOSESW
Telephone muting signal input terminal At input of “H”, the signal is attenuated by –20 dB
Front panel block remove/attach detection switch (SW500) input terminal
“L”: front panel is attached
81
82 to 85
86
ACC IN
TIR-D0 to TIR-D3
HSTX
I
Accessory detect signal input terminal “L”: accessory on
I/O
Two-way data bus with the external device Not used (open)
I
I
I
I
Hardware standby input terminal “L”: hardware standby mode Reset signal input in this set
Setting terminal for the CPU operational mode (fixed at “L” in this set)
Setting terminal for the CPU operational mode (fixed at “H” in this set)
Setting terminal for the CPU operational mode (fixed at “H” in this set)
87
MD2
88
MD1
89
MD0
System reset signal input from the reset signal generator (IC500) and reset switch (SW800)
“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
90
RESET
I
91
92
VSS
X0
—
I
Ground terminal
Main system clock input terminal (3.68 MHz)
93
X1
O
—
I
Main system clock output terminal (3.68 MHz)
94
VCC
Power supply terminal (+5V)
95
TIR-BUSY
TIR-WR
TIR-CE0
TIR-CE1
TIR-RES
TIR-PDOWN
TIR-RD
MTLIN
Busy detection signal input from the external device Not used (fixed at “L”)
Data write strobe signal output to the external device Not used (open)
Chip enable signal output to the external device Not used (open)
Chip enable signal output to the external device Not used (open)
Reset signal output to the external device “H”: reset Not used (open)
Power down control signal output to the external device “L”: power down Not used (open)
Data read strobe signal output to the external device Not used (open)
Metal detection signal input terminal “L”: normal position, “H”: metal position
96
O
O
O
O
O
O
I
97
98
99
100
101
102
Whether a music is present or not from CXA2510AQ (IC250) is detected at auto music sensor
“L”: music is present, “H”: music is not present
103
104
AMSIN
REEL
I
I
Rotation detect signal input from supply reel sensor and take-up reel sensor on the deck
mechanism
105
106
107
108
POS0
POS1
POS2
POS3
I
I
I
I
Tape position (EJECT/FF/REW/
REV/FWD mode) detect input from
the tape operation switch on the deck POS2: “L”: REW mode, “H”: others mode
mechanism POS3: “L”: REV and EJECT mode, “H”: others mode
POS0: “L”: EJECT mode, “H”: others mode
POS1: “L”: FF and FWD mode, “H”: others mode
Motor drive signal output to the loading/tape operation motor drive (IC201) “H” active
(For the eject direction and reverse side operation) *1
109
LM-EJ
O
– 52 –
Pin No.
Pin Name
I/O
Function
Motor drive signal output to the loading/tape operation motor drive (IC201) “H” active
(For the loading direction and forward side operation) *1
110
LM-LOD
O
111
112
CM-ON
O
O
Capstan/reel motor (M901) drive signal output terminal “H”: motor on
Tape system power supply on/off control signal output terminal “H”: tape on
TAPEON
Forward/reverse direction control signal output to the CXA2510AQ (IC250)
“L”: forward direction, “H”: reverse direction
113
114
115
N-ROUT
AMSON
DOLBC
O
O
O
Tape auto music sensor control signal output to the CXA2510AQ (IC250)
“L” is output to lower the gain for audio level at FF/REW mode
Standby on/off control signal output to the power amplifier (IC700)
“L”: standby mode, “H”: amp on
Dolby control in/out terminal
At initial mode: valid/invalid selection input of dolby function (valid at “L” input)
At normal mode: dolby on/off control signal output to the CXA2510AQ (IC250)
(dolby on at “H” output)
116
DOLBY
I/O
117
118
119
120
I
CSV-NAR
LEDON
VSS
“H” is input when CSV (IC650) sends data
O
—
O
Power supply on/off control signal output of the illumination LED “H”: power on
Ground terminal
POWON
Main system power supply on/off control signal output to the BA3918 (IC502) “H”: power on
*1 Loading/tape operation motor control
Mode
LOADING/
FORWARD
EJECT/
REVERSE
STOP
BRAKE
Terminal
LM-LOD (pin `⁄⁄‚)
LM-EJ (pin `⁄‚·)
“L”
“L”
“H”
“L”
“L”
“H”
“H”
“H”
– 53 –
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