SERVICE MANUAL
XR-C6100
Saudi Arabia 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
SPECIFICATIONS
NEW
MG-25F-136
– Continued on next page –
FM/MW/SW CASSETTE CAR STEREO
MICROFILM
SECTION 6
DIAGRAMS
11
12
13
14
8
9
10
6
7
15
23
24
25
20
21
22
26
16
17
18
19
6-1.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC501
µ
PD78058GC-F58-3B9 (SYSTEM CONTROLLER)
Pin No.
Pin Name
1
2
3
4
DSEL
RC IN0
SD IN
AVSS
I/O Function
I
I
Destination setting terminal Frequency select switch (S502) input in this set
“L”: MW 9k step or FM 50k step, “H”: MW 10k step or FM 200k step
Rotary remote commander shift key A/D input terminal
I
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”
— Ground terminal (for A/D converter)
5 ST I/O
Input of FM stereo detection signal from FM/AM tuner unit (TU1), and output of forced monaural control signal to FM/AM tuner unit (TU1) (Commonly used for stereo display input and forced monaural output)
FM stereo detection at input of “L”, forced monaural at output of “L”
27
28
29
30
31
32
33
34
35
36
PLLCE
AVREF1
PLLSI
PLLSO
PLLCKO
P-STIN
LCDSO
LCDCKO
LCDCE
LCDINH
UNISI
UNISO
UNICKI
UNICKO
BUSON
SYSRST
AMPON
AMP MUT
TUNON
FM ON
PW ON
COLOR
AMSON
REL
MTLIN
POS3
POS2
GND
POS0
POS1
LM LOD
I
O
O
O
I
O
O
O
I
O
O
O
O
O
O
O
I
O
I
O
O
I
PLL serial chip enable output to the FM/AM PLL (IC1)
Reference voltage (+5V) input terminal (for D/A converter)
PLL serial data input from the FM/AM PLL (IC1)
PLL serial data output to the FM/AM PLL (IC1)
PLL serial data transfer clock signal output to the FM/AM PLL (IC1)
Polar stereo signal input terminal Not used (fixed at “H”)
Serial data output to the liquid crystal display driver (IC901)
Serial data transfer clock signal output to the liquid crystal display driver (IC901)
Chip enable output to the liquid crystal display driver (IC901)
Blank indicate control signal output to the liquid crystal display driver (IC901)
“L”: no display
Serial data input from the bus interface (IC701) (for SONY bus)
Serial data output to the bus interface (IC701) (for SONY bus)
Serial data reading clock signal input terminal (for SONY bus)
Serial data transfer clock signal output to the bus interface (IC701) (for SONY bus)
Bus on/off control signal output to the bus interface (IC701) (for SONY bus) “L”: bus on
Reset signal output to the bus interface (IC701) (for SONY bus) “L”: reset
Standby control signal output to the power amplifier (IC611) “L”: standby
Muting control signal output to the power amplifier (IC611) “L”: muting on
Tuner system power supply on/off control signal output to the BA3918 (IC671) “H”: tuner on
FM system power supply on/off control signal output to the BA3918 (IC671) “H”: FM on
Main system power supply on/off control signal output to the BA3918 (IC671) “H”: power on
Input terminal to set whether the illumination color change function is present or not
“L”: illumination color change function is present (fixed at “L” in this set)
O
Tape auto music sensor control signal output to the CXA2510AQ (IC301)
“L” is output to lower the gain for audio level at FF/REW
I
I
Reel table rotation detect signal input from the take-up and supply reel sensor
Input terminal to set whether the auto metal function is present or not
“L”: auto metal function is present Not used this function in this set (fixed at “H”)
I
Tape position detect input from the tape operation switch on the mechanism block
I
— Ground terminal
I
Tape position detect input from the tape operation switch on the mechanism block
I
O
Loading/tape operation motor control signal output to the LB1638M (IC361)
(For the loading direction and forward side operation) *1
– 17 –
60
64
65
66
61
62
63
49
50
51
46
47
48
52
53
Pin No.
37
Pin Name
LM EJ
38
39
40
41
42
43
44
N/R OUT
P.ON
CM ON
TAPEON
COLSEL
RC IN1
TEST
45
54
55
56
57
58
59
ILL ON
BEEP
MUT
VOLCE
SUBCE
VOLCKO
SUBCKO
VOLSO
TAPMUT
DOLON
DOLBC
AMSIN
MTLSEL
AD ON
RAMBU
RESET
SIRCS
BU IN
PW SEL
ACCIN
NOSESW
TELMUT
I/O
O
Function
Loading/tape operation motor control signal output to the LB1638M (IC361)
(For the eject direction and reverse side operation) *1
O
Forward/reverse direction control signal output to the CXA2510AQ (IC301)
“L: forward direction, “H”: reverse direction
O Polar stereo detection signal output terminal “H”: polar stereo Not used (open)
O Capstan/reel motor (M901) drive signal output terminal “H”: motor on
O Tape system power supply on/off control signal output terminal “H”: tape on
I Setting terminal for the illumination color “L”: amber, “H”: green (fixed at “H”)
I Rotary remote commander shift key A/D input terminal
I
O
Setting terminal for the test mode “L”: test mode (normally fixed at “H”)
Power supply on/off control signal output terminal at the illumination and liquid crystal display driver (IC901) “H”: power on
At power select switch (S501) on mode: “H” output at the accessory on
At power select switch (S501) off mode: “H” output at the power on
O Beep sound signal output terminal
O Line muting control signal output terminal “H”: line muting on
O Chip enable signal output to the electrical volume (IC161)
O Chip enable signal output terminal Not used in this set (open)
O Serial data transfer clock signal output to the electrical volume (IC161)
O Serial data transfer clock signal output terminal Not used in this set (open)
O Serial data output to the electrical volume (IC161)
O Tape muting on/off control signal output to the CXA2510AQ (IC301) “H”: tape muting on
I/O
Dolby control in/out terminal
At initial mode: valid/invalid selection input of dolby function (“L” input: valid)
At normal mode: dolby on/off control signal output to the CXA2510AQ (IC301)
“H”: dolby on
I/O
I
I/O
Dolby B/C selection control in/out terminal
At initial mode: dolby B only/dolby B and C type selection input (“L” input: dolby B and C)
At normal mode: dolby type selection signal output “L”: dolby B, “H”: dolby C
Not used this function (fixed at “H”)
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
METAL control in/out terminal
At initial mode: auto/manual mode selection input of METAL function “L”: manual mode
At manual mode: METAL on/off control signal output to the CXA2510AQ (IC301)
“H”: METAL on
At auto mode: input at MTLIN (pin #º)
I
I
I
I
I
I
O Power supply on/off control signal output for the A/D converter “L”: power on
I
Internal RAM reset detection signal input from the RN5VD23AA (IC651)
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset
I
System reset signal input from the reset signal generator (IC652) and reset switch (S503)
“L” is input for several 100 msec after power on, then it changes to “H”
Sircs signal input from the remote control receiver (IC902)
Battery detect signal input terminal “H”: battery on
Power select switch (S501) input terminal “L”: off (halt mode), “H”: on (operation mode)
Accessory detect signal input terminal “L”: accessory on
Detects the removal of the attaching and removing type front panel block “L”: attaching
Telephone muting signal input terminal At input of “L”, the signal is attenuated by –20 dB
– 18 –
Pin No.
67
68
69
70
71
72
73
74
75
76
77
78
79
80
Pin Name
KEYACK
VDD
X OUT
X IN
GND
XT OUT
XT IN
AVDD
AVREF0
KEYIN0
KEYIN1
D-BASS
VSM
KEYSEL
I
I
I
I/O
I
Function
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”
— Power supply terminal (+5V)
O Main system clock output terminal (5 MHz)
I Main system clock input terminal (5 MHz)
— Ground terminal
O Sub system clock output terminal (32.768 kHz)
I Sub system clock input terminal (32.768 kHz)
— Power supply terminal (+5V) (for A/D converter)
I Reference voltage input terminal (+5V) (for A/D converter)
I
Key input terminal (A/D input)
OFF, SOURCE, MODE *, SEEK AMS + + ), SEEK AMS = 0 –, VOLUME –,
SEL, VOLUME +, DSPL, ATT keys input (LSW901 to LSW910)
I
Key input terminal (A/D input)
6, INTRO 1, REPEAT 2, SHUF/a 3, BL SKIP 6, ATA 5, BANK/MTL 4, BTM LCL, FILE,
PRESET DISC +/– keys input (LSW921 to LSW931)
D-BASS switch (SW951) input (A/D input)
FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1)
Setting terminal for the key (fixed at “L”)
*1 loading/tape operation motor control
MODE
TERMINAL
STOP
LM LOD (pin #§)
LM EJ (pin #¶)
“L”
“L”
LOADING/
FORWARD
“H”
“L”
EJECT/
REVERSE
“L”
“H”
BRAKE
“H”
“H”
– 19 –
XR-C6100
6-4.
SCHEMATIC DIAGRAM – MAIN Section (1/2) – •
See page 31 and 32 for IC Block Diagrams.
– 23 – – 24 –
6-5.
SCHEMATIC DIAGRAM – MAIN Section (2/2) – •
See page 32 for IC Block Diagramas.
– 25 – – 26 –
XR-C6100
• Waveforms
1 IC1 1 (XO)
4.2 Vp-p
7.2 MHz
2 IC501 ^ª (XOUT)
4.6 Vp-p
5 MHz
3 IC501 &™ (XT_OUT)
32.768 kHz
5 Vp-p
6-7.
SCHEMATIC DIAGRAM – PANEL Section –
– 29 – – 30 –
XR-C6100
• IC Block Diagrams
– MAIN BOARD –
IC1 BU2624F-E2
XOUT 1
XIN 2
REFERENCE
DIVIDER
PHASE
DETECT
CE 3
CK 4
DA 5
CD 6
P0 7
P1 8
P3 9
P4 10
I/O
CONTROL
SHIFT
REGISTER
LATCH
MAIN
COUNT
PRESCALLER
IF COUNT
CONTROL
20BIT COUNT
15 P2
14 IF1
13 IF2
12 SD
11 PD2
20 VSS
19 PD1
18 VDD
17 FMIN
16 AMIN
IC161 LC75373ED
LSELO
L4
L3
L2
L1
34
35
36
37
38
VDD 39
R1
R2
R3
R4
RSELO
40
41
42
43
44
33
1
+
–
–
+
+
–
–
+
32
2
–
+
+
–
31 30 29 28 27 26 25 24 23
–
+
–
+
+
–
+
–
22 LFIN
21 LFOUT
20 LROUT
+
–
–
+
+
–
3 4 5
+
–
DECODER
+
–
LATCH
SHIFT
REGISTER
CONTROL
–
+
–
+
+
–
19 VREF
18
17
16
15
14
CE
DI
CL
VSS
RROUT
13
12
RFOUT
RFIN
6 7 8 9 10 11
– 31 –
IC301 CXA2510AQ-T4
PBFB1
PBRIN1
31
32
PBREF1 33
PBFIN1 34
VCT
PBGND
35
36
PBFIN2 37
PBREF2 38
PBRIN2
PBFB2
39
40
30
F2
29 28 27
120
µ
/
70 µ
26
T2
– +
X1
VCT
F1
+
X1
LPF
FWD/RVS
VCC
+
–
F3
25
NR BIAS
TAPE/AUX
TAPE EQ
24 23 22 21
NR
+ –
MS
MODE
20 MSMODE
19 DRSW
18
17
TAPESW
INSW
16 NRSW
NR
MODE
MS ON/
OFF
DETECT
15 NC
14 MSOUT
13 DGND
– +
T1
+ –
12 MSTC
11 FF
1 2
120
µ
/
70 µ
3 4 5 6 7
OFF/B
NR
8 9 10
IC361 LB1638M
GND 1
IN1 2
VCC 3
IN2 4
GND 5
10 N.C.
9 OUT1
8 VS
7 OUT2
6 N.C.
IC611 TDA7384
DRIVER DRIVER DRIVER DRIVER
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
IC671 BA3918-V2
REGULATOR
1 2 3 4
–
+
OVER VOLTAGE
PROTECT
5 6 7 8 9
–
+
–
+
10 11 12
– 32 –
–
+
BUS ON
1
RST 2
BATT 3
CLK
VREF
DATA
4
5
6
GND 7
IC701 BA8270F-E2
BUS ON
SWITCH
RESET
SWITCH
BATTERY
SWITCH
14 VCC
13
12
11
10
RST
BUS ON
CLK IN
BU IN
9 DATA IN
8 DATA OUT
