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XR-C6200
SERVICE MANUAL
E Model
Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation. "DOLBY" and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism Tape Transport Mechanism Type
XR-C5100 MG-25F-136
SPECIFICATIONS
FM/MW/SW CASSETTE CAR STEREO
MICROFILM
XR-C6200
6-3.
SCHEMATIC DIAGRAM MAIN Board (1/2) · See page 29 for IC Block Diagrams. · See page 31 for Waveforms.
21
22
XR-C6200
6-4.
SCHEMATIC DIAGRAM MAIN Board (2/2)
· See page 30 for IC Block Diagrams.
(Page 27)
23
24
XR-C6200
6-6.
SCHEMATIC DIAGRAM KEY Board
· See page 31 for Waveform.
(Page 24)
27
28
XR-C6200
· IC Block Diagrams MAIN Board IC21 TB2118F-EL-S
AM CP OUT FM CP OUT
IC331
TDA7462D013TR
24 23
22 21
20
19
18
17 AMP
16 15 14 13
PAUSE DETECT INPUT GAIN & AUTO ZERO TREBLE/ BASS CONTROL CIRCUIT FRONT FADER
28 27 26 25 24 23
SE3L SE3R MUTE SDA SCL PAUSE
A-GND
D-GND
AM IN
FM IN
VDD
REG
VCC
VDD AMP
VCC
REGULATOR SEEK/RECP SEEK/RECP
4BIT SWALLOW COUNTER
PRESCALLER 12BIT PROGRAMMABLE COUNTER
+
PHASE COMPARATOR
SIG
REF
20BIT IF COUNTER 40BIT SHIFT REGISTER 18BIT 22BIT
SE1L SE1R MD+ MD CDL+ CDL CDR CDR+ PDR PDGND PDL SE2L SE2R
1 2 3 4 5 6 7 8 9 10 11 12 13
FRONT SIDE SELECTOR
+
+ +
IFC
VT
XI
LOUDNESS CONTROL CIRCUIT
VOLUME CONTROL CIRCUIT
SOFT MUTE
VOICE BANDPASS HP LP
22 OUT FL
INPUT MULTIPLEXER & MIXING STAGE
AMP
FRONT FADER COMPANDER REAR FADER LOUDNESS CONTROL CIRCUIT
21 OUT FR
REAR SIDE SELECTOR
20 OUT RL
INPUT GAIN
REAR FADER
19 OUT RR
OSCILLATOR
REFERENCE DIVIDER
ON/OFF BUFFER
18BIT
BEEP
SUBWOOFER LP
FADER 18 SUBOUT+ 17 SUBOUT SDA
SERIAL INTERFACE
I/O PORT
OUTPUT PORT
VDD2
SUBWOOFER OUT IIC BUS
DIGITAL CONTROL CIRCUIT
1 2 3 4 5 6 7 8 9 10 11 12
SCL 16 VDD 15 GND
CE DIN CK DOUT
I/O-1
I/O-2
OUT-1
OUT-2
VDD2
CREF 14
POWER SUPPLY
XO
OSC
SR
IC301
CXA2510AQ-T4
LINEOUT1 TAPEIN1 PBOUT1 AUXIN1 PBEQ1 MSSW
IC351
LB1930M-TLM
IC611
BA3918-V2
DIREF
TCH1
GND
NC
VCC 1 NC 2 IN1 3 IN2 4
10 NC BUFFER CONTROL CIRCUIT BUFFER MOTOR DRIVE CIRCUIT 9 OUT1 8 NC 7 OUT2 6 P-GND
OVER VOLTAGE PROTECT + + + + REGULATOR
30
29
28 27
26
25
24
23 22 21 NR
T2 + PBFB1 31 PBRIN1 32 PBREF1 33 PBFIN1 34 F2 TAPE EQ FWD/RVS VCT 35 PBGND 36 VCT + PBFIN2 37 PBREF2 38 PBRIN2 39 PBFB2 40 T1 120µ/ 70µ 1 2 3 4 5 6 7 + + F1 F3 X1 LPF VCC + NR BIAS X1 TAPE/AUX
+
OFF/B
120µ/ 70µ
20 MSMODE MS MODE 19 DRSW 18 TAPESW 17 INSW NR MODE 16 NRSW
S-GND 5
MODE2 MODE1 STB
VDD
NC
AMP
VCC
COM
14 MSOUT
BUS ON 1
13 DGND
BUS ON SWITCH RESET SWITCH BATTERY SWITCH
14 VCC
12 MSTC OFF/B NR 8 9 10 11 FF
RST 2
BATT 3
13 12 11 10
RST BUS ON CLK IN BU IN
TAPEIN2 AUXIN2
LINEOUT2
PBOUT2
MSLPF
PBEQ2
VCC
TCH2 NC PLAY
CLK 4 VREF 5 DATA 6 GND 7
9 DATA IN 8 DATA OUT
29
30
GND
ANT
AM
FM
MS ON/ 15 NC OFF DETECT
IC581
BA8270F-E2
1 2 3 4 5 6 7 8 9 10 11 12
· Waveforms MAIN Board
1 IC21 1 (XT OUT)
KEY Board
1 IC901 ^ş OSC
0.2 Vp-p
2.7 Vp-p
97.6 ns
2 IC501 ! (XT IN)
27 µs
1.7 Vp-p
30.5 µs
3 IC501 !£ (OSC IN)
1.3 Vp-p
54.2 ns
31
6-7.
IC PIN FUNCTION DESCRIPTION
· MAIN BOARD IC501 MN101C12GTB1 (SYSTEM CONTROLLER) Pin No. 1 2 Pin Name AVREF VSM I/O I I Function Reference voltage (0V) input terminal (for A/D converter) FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1) (A/D input) Key input terminal (A/D input) (LSW921 to LSW923, LSW925, LSW926, LSW928 to LSW933) 6, PRESET DISC /+, DSPL, LIST, 6, 5 ENTER, 4 n, 3 PLAY MODE, 2 SET UP, 1 N keys input Key input terminal (A/D input) (LSW901 to LSW903, S901, LSW905, LSW906) OFF, SOURCE, MODE *, SEEK/AMS = 0 + ) +, SOUND, SHIFT keys input D-BASS switch (S981) input terminal (A/D input) Destination setting terminal Frequency select switch (S502) input terminal ("L": MW 9 kHz/FM 50 kHz step, "H": MW 10 kHz/FM 200 kHz step) Setting terminal for the function select (fixed at "L" in this set) Not used (open) Rotary remote commander key input terminal (A/D input) Reference voltage (+5V) input terminal (for A/D converter) Power supply terminal (+5V) Main system clock output terminal (18.432 MHz) Main system clock input terminal (18.432 MHz) Ground terminal Sub system clock input terminal (32.768 kHz) Sub system clock output terminal (32.768 kHz) Ground terminal Rotary remote commander shift key input terminal "L": shift Reset signal output to the SONY bus interface (IC581) "L": reset Bus on/off control signal output to the SONY bus interface (IC581) "L": bus on Serial data output to the SONY bus interface (IC581) Serial data input from the SONY bus interface (IC581) Serial data transfer clock signal output to the SONY bus interface (IC581) Serial data reading clock signal input for the SONY bus interface Not used (open) Not used (open) 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" Front panel block remove/attach detection signal input terminal "L": front panel is attached Battery detect signal input from the SONY bus interface (IC581) and battery detect circuit "L" is input at low voltage Sircs remote control signal input from the remote control receiver (IC951) Telephone muting signal input terminal At input of "H", the signal is attenuated by 20 dB Setting terminal for the test mode "L": test mode, Normally: fixed at "H" Internal RAM reset detection signal input from the XC61BN3312MR (IC552) Input terminal to check that RAM data are not destroyed due to low voltage This checking is made within 100 msec after reset System reset signal input from the reset signal generator (IC551) and reset switch (S551) "L": reset "L" is input for several 100 msec after power on, then it changes to "H" Muting control signal output to the electrical volume (IC331) Volume minimum: "" output ("H" active)
3
KEYIN1
I
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
KEYIN0 D-BASS IN DSTSEL FUNC-SEL NCO RC-IN0 AVREF+ VDD OSC OUT OSC IN GND XT IN XT OUT GND RC-IN1 SYSRST BUS-ON UNISO UNISI UNICKO UNICKI NCO KEYACK NOSESW BU-IN SIRCS TEL-ATT TEST-IN RAMBU
I I I I O I I -- O I -- I O -- I O O O I O I O I I I I I I I
33 34
RESET VOL-MUT
I O
32
Pin No. 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
Pin Name BEEP AMP-MUT AMP ON PLL-CKO PLL-CE PLL-SO PLL-SI LCD-SO LCD-CE LCD-CKO VOL-SIO NCO VOL-CKO ACC-IN MUT NCO AMSON N/R-OUT
I/O O O O O O O I O O O I/O O O I O O O O Beep sound drive signal output terminal
Function Muting on/off control signal output to the power amplifier (IC751) Standby on/off control signal output to the power amplifier (IC751) "L": standby mode, "H": amp on PLL serial data transfer clock signal output to the FM/AM PLL (IC21) PLL chip enable signal output to the FM/AM PLL (IC21) PLL serial data output to the FM/AM PLL (IC21) PLL serial data input from the FM/AM PLL (IC21) Serial data output to the liquid crystal display driver (IC901) Chip enable signal output to the liquid crystal display driver (IC901) Two-way data bus with the electrical volume (IC331) Not used (open) Bus clock signal output to the electrical volume (IC331) Accessory detect signal input terminal Not used (open) Tape auto music sensor control signal output to the CXA2510AQ (IC301) "L" is output to lower the gain for audio level at FF/REW mode Forward/reverse direction control signal output to the CXA2510AQ (IC301) "L": forward direction, "H": reverse direction METAL control in/out terminal At initial mode: valid/invalid selection input of METAL function (valid at "L" input) At normal mode: METAL on/off control signal output to the CXA2510AQ (IC301) (METAL on at "H" output) Tape muting on/off control signal output to the CXA2510AQ (IC301) Active at ATA, FF/REW mode "H": muting on "L": accessory on "H": muting on Audio line muting on/off control signal output terminal "H" active Serial data transfer clock signal output to the liquid crystal display driver (IC901) "H" active "L": muting on
53
MTLON
I/O
54
TAPE-MUT
O
55
DOLON
I/O
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 (IC301) (dolby on at "H" output) Whether a music is present or not from CXA2510AQ (IC301) is detected at auto music sensor "L": music is present, "H": music is not present Not used (open) FM stereo broadcasting detection signal input from the FM/AM tuner unit (TU1), or forced monaural control signal output to the FM/AM tuner unit (TU1) "L" is input in the FM stereo mode, or "L" is output in the forced monaural mode Station detector detect input from the FM/AM tuner unit (TU1) Stop level for SEEK, BTM, etc. is determined SD is present at input of "H" Dial pulse input of the rotary encoder (RE900) (for VOLUME/BASS/TREBLE/BALANCE/FADER control) A/D converter power control signal output terminal 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 Power select switch (S501) input terminal "L": off (halt mode), "H": on (operation mode)
56 57 to 75 76
AMSIN NCO ST-MONO
I O I/O
77 78 79 80 81
SD-IN RE-IN0 RE-IN1 AD-ON POWSEL
I I I O I
82
ILL-ON
O
Power on/off control signal output of the illumination LED and liquid crystal display driver (IC901) "H": power on Depends on initial setting of power select switch (S501) Power select switch (S501) on: "H" output at the accessory on Power select switch (S501) off: "H" output at the power on Rotation detect signal input from supply reel sensor and take-up reel sensor on the deck mechanism
83
REEL
I
33
Pin No. 84 85 86 87 88 89 90 91 92 93 94 95 to 100
Pin Name POS3 POS2 POS0 POS1 LM-LOD LM-EJ TAPEON CM-ON POWON FM-ON TU-ON NCO
I/O I I I I O O O O O O O O Tape position (EJECT/FF/REW/REV/ FWD mode) detect input from the tape operation switch on the deck mechanism
Function POS3: "L": REV and EJECT mode, "H": others mode POS2: "L": REW mode, "H": others mode POS0: "L": EJECT mode, "H": others mode POS1: "L": FF and FWD mode, "H": others mode "H" active "H" active
Motor drive signal output to the loading/tape operation motor drive (IC351) (For the loading direction and forward side operation) *1 Motor drive signal output to the loading/tape operation motor drive (IC351) (For the eject direction and reverse side operation) *1 Tape system power supply on/off control signal output terminal Capstan/reel motor (M901) drive signal output terminal
"H": tape on "H": power on
"H": motor on
Main system power supply on/off control signal output to the BA3918 (IC611) FM system power supply on/off control signal output to the BA3918 (IC611) "L": AM power on, "H": FM power on Tuner system power supply on/off control signal output to the BA3918 (IC611) "H": tuner power on Not used (open)
*1 Loading/tape operation motor control Mode Terminal LM-LOD (pin *·) LM-EJ (pin *Ş) STOP "L" "L" LOADING/ FORWARD "H" "L" EJECT/ REVERSE "L" "H" BRAKE "H" "H"
34