Sony XR-C6100 User Manual 2

XR-C6100

SERVICE MANUAL

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.

SPECIFICATIONS

Saudi Arabia Model

Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MG-25F-136

MICROFILM

– Continued on next page –

FM/MW/SW CASSETTE CAR STEREO

SECTION 6

DIAGRAMS

6-1. IC PIN FUNCTION DESCRIPTION

• MAIN BOARD IC501 µPD78058GC-F58-3B9 (SYSTEM CONTROLLER)

Pin No. Pin Name I/O Function

1 DSEL I

2 RC IN0 I Rotary remote commander shift key A/D input terminal

3 SD IN I

4 AVSS — Ground terminal (for A/D converter)

5 ST I/O

6 PLLCE O PLL serial chip enable output to the FM/AM PLL (IC1)
7 AVREF1 I Reference voltage (+5V) input terminal (for D/A converter)
8 PLLSI I PLL serial data input from the FM/AM PLL (IC1)

9 PLLSO O PLL serial data output to the FM/AM PLL (IC1)
10 PLLCKO O PLL serial data transfer clock signal output to the FM/AM PLL (IC1)
11 P-STIN I Polar stereo signal input terminal Not used (fixed at “H”)
12 LCDSO O Serial data output to the liquid crystal display driver (IC901)
13 LCDCKO O Serial data transfer clock signal output to the liquid crystal display driver (IC901)
14 LCDCE O Chip enable output to the liquid crystal display driver (IC901)

15 LCDINH O

16 UNISI I Serial data input from the bus interface (IC701) (for SONY bus)
17 UNISO O Serial data output to the bus interface (IC701) (for SONY bus)
18 UNICKI I Serial data reading clock signal input terminal (for SONY bus)
19 UNICKO O Serial data transfer clock signal output to the bus interface (IC701) (for SONY bus)
20 BUSON O Bus on/off control signal output to the bus interface (IC701) (for SONY bus) “L”: bus on
21 SYSRST O Reset signal output to the bus interface (IC701) (for SONY bus) “L”: reset
22 AMPON O Standby control signal output to the power amplifier (IC611) “L”: standby
23 AMP MUT O Muting control signal output to the power amplifier (IC611) “L”: muting on
24 TUNON O Tuner system power supply on/off control signal output to the BA3918 (IC671) “H”: tuner on
25 FM ON O FM system power supply on/off control signal output to the BA3918 (IC671) “H”: FM on
26 PW ON O Main system power supply on/off control signal output to the BA3918 (IC671) “H”: power on

27 COLOR I

28 AMSON O

29 REL I Reel table rotation detect signal input from the take-up and supply reel sensor

30 MTLIN I

31 POS3 I
32 POS2 I
33 GND — Ground terminal
34 POS0 I
35 POS1 I

36 LM LOD O

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

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”

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”

Blank indicate control signal output to the liquid crystal display driver (IC901)
“L”: no display

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)

Tape auto music sensor control signal output to the CXA2510AQ (IC301)
“L” is output to lower the gain for audio level at FF/REW

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”)

Tape position detect input from the tape operation switch on the mechanism block

Tape position detect input from the tape operation switch on the mechanism block

Loading/tape operation motor control signal output to the LB1638M (IC361)
(For the loading direction and forward side operation) *1

– 17 –

Pin No. Pin Name I/O Function

37 LM EJ O

38 N/R OUT O

39 P.ON O Polar stereo detection signal output terminal “H”: polar stereo Not used (open)
40 CM ON O Capstan/reel motor (M901) drive signal output terminal “H”: motor on
41 TAPEON O Tape system power supply on/off control signal output terminal “H”: tape on
42 COLSEL I Setting terminal for the illumination color “L”: amber, “H”: green (fixed at “H”)
43 RC IN1 I Rotary remote commander shift key A/D input terminal
44 TEST I Setting terminal for the test mode “L”: test mode (normally fixed at “H”)

45 ILL ON O

46 BEEP O Beep sound signal output terminal
47 MUT O Line muting control signal output terminal “H”: line muting on
48 VOLCE O Chip enable signal output to the electrical volume (IC161)
49 SUBCE O Chip enable signal output terminal Not used in this set (open)
50 VOLCKO O Serial data transfer clock signal output to the electrical volume (IC161)
51 SUBCKO O Serial data transfer clock signal output terminal Not used in this set (open)
52 VOLSO O Serial data output to the electrical volume (IC161)
53 TAPMUT O Tape muting on/off control signal output to the CXA2510AQ (IC301) “H”: tape muting on

54 DOLON I/O

Loading/tape operation motor control signal output to the LB1638M (IC361)
(For the eject direction and reverse side operation) *1

Forward/reverse direction control signal output to the CXA2510AQ (IC301)
“L: forward direction, “H”: reverse direction

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

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

Dolby B/C selection control in/out terminal

55 DOLBC I/O

56 AMSIN I

57 MTLSEL I/O

58 AD ON O Power supply on/off control signal output for the A/D converter “L”: power on

59 RAMBU I

60 RESET I

61 SIRCS I Sircs signal input from the remote control receiver (IC902)
62 BU IN I Battery detect signal input terminal “H”: battery on
63 PW SEL I Power select switch (S501) input terminal “L”: off (halt mode), “H”: on (operation mode)
64 ACCIN I Accessory detect signal input terminal “L”: accessory on
65 NOSESW I Detects the removal of the attaching and removing type front panel block “L”: attaching
66 TELMUT I Telephone muting signal input terminal At input of “L”, the signal is attenuated by –20 dB

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)

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

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”

– 18 –

Pin No. Pin Name I/O Function

67 KEYACK I

68 VDD — Power supply terminal (+5V)
69 X OUT O Main system clock output terminal (5 MHz)
70 X IN I Main system clock input terminal (5 MHz)
71 GND — Ground terminal
72 XT OUT O Sub system clock output terminal (32.768 kHz)
73 XT IN I Sub system clock input terminal (32.768 kHz)
74 AVDD — Power supply terminal (+5V) (for A/D converter)
75 AVREF0 I Reference voltage input terminal (+5V) (for A/D converter)

76 KEYIN0 I

77 KEYIN1 I

78 D-BASS I D-BASS switch (SW951) input (A/D input)
79 VSM I FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1)
80 KEYSEL I Setting terminal for the key (fixed at “L”)

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”

Key input terminal (A/D input)
OFF, SOURCE, MODE *, SEEK AMS + + ), SEEK AMS = 0 –, VOLUME –,
SEL, VOLUME +, DSPL, ATT keys input (LSW901 to LSW910)

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)

*1 loading/tape operation motor control
MODE
TERMINAL

LM LOD (pin #§) “L” “H” “L” “H”

LM EJ (pin #¶) “L” “L” “H” “H”

STOP

LOADING/
FORWARD

EJECT/

REVERSE

BRAKE

– 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.

XR-C6100

• Wavef orms

1 IC1 1 (XO)

4.2 Vp-p

7.2 MHz

2 IC501 ^ª (XOUT)

5 MHz

3 IC501 &™ (XT_OUT)

4.6 Vp-p

5 Vp-p

– 25 –

32.768 kHz

– 26 –

6-7. SCHEMATIC DIAGRAM – PANEL Section –

XR-C6100

– 29 –

– 30 –

• IC Block Diagrams
– MAIN BOARD –

IC1 BU2624F-E2

1

XOUT

2

XIN

3

CE

4

CK

5

DA

6

CD

7

P0

8

P1

9

P3

10

P4

I/O

CONTROL

REFERENCE

DIVIDER

SHIFT

REGISTER

LATCH

20BIT COUNT

MAIN

COUNT

IF COUNT
CONTROL

PHASE

DETECT

PRESCALLER

IC301 CXA2510AQ-T4

20

VSS

19

PD1

18

VDD

PBFB1

PBRIN1

17

FMIN

16

AMIN

15

P2

14

IF1

13

IF2

12

SD

11

PD2

PBREF1

PBFIN1

VCT

PBGND

PBFIN2

PBREF2

PBRIN2

PBFB2

PBEQ1

PBOUT1

120µ/

70µ

+

–

31
32

1

PBEQ2

VCT

F2

F1

–

+

120µ/

70µ

2

PBOUT2

33
34

35
36

37
38

39
40

AUXIN1

TAPEIN1

GND

T2

LPF

MSLPF

NR BIAS

TAPE/AUX

TAPE EQ

FWD/RVS

VCC

F3

+

LINEOUT2

X1

+

X1

T1

345 6 7 8 9 10

VCC

AUXIN2

TAPEIN2

LINEOUT1

DIREF

2425

+

–

+
–

–

OFF/B

NR

NC

TCH2

NR

OFF/B

PLAY

TCH1

NC

MSSW

2122232627282930

MS

MODE

NR

MODE

DETECT

MS ON/

OFF

20

19

18
17

16

15

14

13

12
11

MSMODE

DRSW

TAPESW
INSW

NRSW

NC

MSOUT

DGND

MSTC
FF

IC161 LC75373ED

LVRIN

+
–

34

LSELO

35

L4
L3

36

L2

VDD

RSELO

37

L1

38

39

R1

40
41

R2
R3

42

R4

43
44

+

–

–

+

–
+

LCOM

IC361 LB1638M

10

1

GND

SHIFT

REGISTER

2324252627282930313233

LSOUT

CONTROL

2

IN1

VCC

22

LFIN

+
–

+
–

–
+

–
+

LFOUT

21

LROUT

20

19

VREF

18

CE

17

DI

16

CL

15

VSS

14

RROUT

RFOUT

13

12

RFIN

3
4

IN2

5 6

GND

CONTROL LOGIC

IC671 BA3918-V2

REGULATOR

LS3

LS1

LSIN

LT3

LT2

LT1

+
–

+
–

+
–

–
+

LTOUT

–
+

DECODER LATCH

+
–

LS2

–
+

–
+

+
–

+
–

N.C.

9

OUT1

VS

8

7

OUT2

N.C.

IC611 TDA7384

DRIVER

5

3 4

1

2

TAB

GND

OUT2–

OUT2+

STNBY

6

VCC

DRIVER

7 8

OUT1–

GND

10 12

9

OUT1+

SVR

11

14

16

S-GND

IN4

17

15

IN3

AC-GND

IN1

13

IN2

IC701 BA8270F-E2

BUS ON

RST

BATT

DRIVER

OUT3+

1

2

3

GND

1918

OUT3–

20

VCC

BUS ON
SWITCH

RESET

SWITCH

BATTERY

SWITCH

DRIVER

21

OUT4+

2322

MUTE

24

OUT4–

GND

14

13
12
11
10

25

N.C.

VCC

RST
BUS ON
CLK IN
BU IN

1

RVRIN

2 345 6 7 8 9 10

RT1

RT2

RCOM

RT3

RSIN

RTOUT

RS1

RS2

RS3

– 31 –

11

RSOUT

OVER VOLTAGE

PROTECT

–
+

2 3

4

1

NC

STB

MODE2

MODE1

5 6 7 8 9 10 1211

VCC

AMP

ANT

COM

VDD

–
+

AM

–
+

FM

–
+

GND

4

CLK

5

VREF

6

DATA

GND

7 8

DATA IN

9

DATA OUT

– 32 –