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
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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
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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”
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