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XR-C5090
SERVICE MANUAL
E Model
Refer to RM-X4S SERVICE MANUAL (9-925-698-) issued previously for information of remote commander (RM-X4S) supplied with this set
Model Name Using Similar Mechanism Tape Transport Mechanism Type
XR-C340 MG-25F-136
SPECIFICATIONS
FM/AM CASSETTE CAR STEREO
MICROFILM
SECTION 6 DIAGRAMS
6-1. IC PIN FUNCTION DESCRIPTION
· MAIN BOARD IC501 µPD17708GC-567-3B9 (SYSTEM CONTROLLER) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Pin Name AMSSEL POS3 POS2 POS0 POS1 TAPEON CM ON LM LOD LM EJ TUNON FM ON PW ON MUT VOLCE VOLCKO VOLSO AMPON AMPMUT DX/LO AM MONO GND DSTSEL DBASIN KEYIN1 I/O I I I I I O O O O O O O O O O O O O O O -- I I I Tape system power supply on/off control signal output terminal "H": tape on Capstan/reel motor (M901) drive signal output terminal "H": motor on Loading/tape operation motor control signal output to the LB1638M (IC351) (For the loading direction and forward side operation) *1 Loading/tape operation motor control signal output to the LB1638M (IC351) (For the eject direction and reverse side operation) *1 Tuner system power supply on/off control signal output to the BA3918 (IC611) "H": tuner on FM system power supply on/off control signal output to the BA3918 (IC611) "H": FM on Main system power supply on/off control signal output to the BA3918 (IC611) "H": power on Line muting control signal output terminal "H": line muting on Chip enable signal output to the electrical volume (IC331) Serial data transfer clock signal output to the electrical volume (IC331) Serial data output to the electrical volume (IC331) Standby control signal output to the power amplifier (IC751) "L": standby Muting control signal output to the power amplifier (IC751) "L": muting on Local/DX selection signal output to the FM/AM tuner unit (TU1) "L": DX, "H": local AM forced monaural signal output terminal Not used (open) Ground terminal Destination setting terminal (frequency select switch (S502) input terminal) "L": AM 9k step or FM 50k step, "H": AM 10k step or FM 200k step D-BASS switch (SW951) input (A/D input) Key input terminal (A/D input) 6, INTRO 1, REPEAT 2, SHUF 3, BL SKIP 6, ATA 5, 4, PRESET DISC +/ keys input (LSW921 to LSW927, LSW929 and LSW930) Key input terminal (A/D input) OFF, SOURCE, MODE *, + ) + SEEK AMS, = 0 SEEK AMS, VOLUME , SEL, VOLUME +, ATT , DSPL, BTM, LCL keys input (LSW901 to LSW912) Rotary remote commander shift key A/D input terminal FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1) AM intermediate frequency detection signal input from the FM/AM tuner unit (TU1) FM intermediate frequency detection signal input from the FM/AM tuner unit (TU1) Power supply terminal (+5V) FM local oscillator detection signal input from the FM/AM tuner unit (TU1) AM local oscillator detection signal input from the FM/AM tuner unit (TU1) Ground terminal Not used (open) Main charge-pump control signal output terminal Setting terminal for the test (fixed at "L") Not used (open) Seek control signal output to the FM/AM tuner unit (TU1) MW/SW selection signal output to the FM/AM tuner unit (TU1) "L": MW, "H": SW Beep sound output terminal Tape position detect input from tape operation switch on the mechanism block Function Setting terminal for the AMS selection fixed at "L"
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
KEYIN0 RC IN0 VSM AMIFIN FMIFIN VDD2 FM OSC AM OSC GND NCO EO1 TEST0 NCO SEKOUT MW/SW BEEP
I I I I I -- I I -- O O I O O O O
15
Pin No. 41 42
Pin Name KEYACK BU IN
I/O I 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" Battery detect signal input terminal "H": battery on 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 terminal ("H" output: METAL on) At auto mode: input at MTLIN (pin %ª) Not used this function in this set (fixed at "H") 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 ("H" output : dolby on) Not used this function in this set (fixed at "H") Whether a music is present or not from CXA2509AQ (IC301) is detected at auto music sensor "L": music is present, "H": music is not present 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" Tape auto music sensor control signal output to the CXA2509AQ (IC301) "L" is output to lower the gain for audio level at FF/REW Forward/reverse direction control signal output to the CXA2509AQ (IC301) "L: forward direction, "H": reverse direction Tape muting on/off control signal output to the CXA2509AQ (IC301) "H": tape muting on 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 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" 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 Reel table rotation detect signal input from the take-up and supply reel sensor Accessory detect signal input terminal "L": accessory on Setting terminal for the test mode "L": test mode (normally fixed at "H") Rotary remote commander shift key A/D input terminal Power select switch (S501) input terminal "L": position A (halt mode), "H": position B (operation mode) Input terminal to set whether the auto metal function is present or not "L": auto metal function is present (fixed at "H") Power supply on/off control signal output for the A/D conversion Setting terminal for the key (fixed at "H") Active selection terminal for the SEKOUT (pin #·) (fixed at "H") Setting terminal for the illumination color "L": amber, "H": green (fixed at "H") Chip enable output to the liquid crystal display driver (IC901) Serial data transfer clock signal output to the liquid crystal display driver (IC901) Serial data 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 reading clock signal input terminal (for SONY bus) Serial data output to the bus interface (IC581) (for SONY bus)
43
MTLSEL
I/O
44
DOLON
I/O
45
AMSIN
I
46
ST
I/O
47 48 49
AMS ON N/R OUT TAPMUT
O O O
50
ILLON
O
51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
SD IN NOSESW TELMUT REL T ACCIN TESTIN RC IN1 PW SEL MTLIN ADON KEYSEL SEKOUTSEL COLORSEL LCDCE LCDCKO LCDSO LCDINH UNICKI UNISO
I I I I I I I I I O I I I O O O O I O
16
Pin No. 70 71 72 73 74 75 76 77 78 79 80
Pin Name UNISI UNICKO BUSON SYSRST VREG GND X OUT X IN CE VDD1 RESET
I/O I O O O O -- O I I -- I
Function Serial data input from the bus interface (IC581) (for SONY bus) Serial data transfer clock signal output to the bus interface (IC581) (for SONY bus) Bus on/off control signal output to the bus interface (IC581) (for SONY bus) "L": bus on Reset signal output to the bus interface (IC581) (for SONY bus) "L": reset CPU regulator output terminal Connected to capacitor Ground terminal Main system clock output terminal (4.5 MHz) Main system clock input terminal (4.5 MHz) CPU chip enable signal input (fixed at "H") Power supply terminal (+5V) System reset signal input from the reset signal generator (IC551) and reset switch (S551) "L" is input for several 100 msec after power on, then it changes to "H"
*1 loading/tape operation motor control MODE TERMINAL LM LOD (pin 8) LM EJ (pin 9) STOP "L" "L" LOADING/ FORWARD "H" "L" EJECT/ REVERSE "L" "H" BRAKE "H" "H"
17
· IC Block Diagrams MAIN Board IC301 CXA2509AQ-T4
LINEOUT2 TAPEIN2 PBOUT2 AUXIN2 MSSW PBEQ2 DIREF GND
NC 24dB
30
29
28 27
26
25
24
23 22 21
120µ/70µ 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 PBEQ1 2 PBOUT1 3 VCC 4 5 TAPEIN1 AUXIN1 6 MSLPF 7 LINEOUT1 + + OFF/B 24dB 8 NC 9 NC F1 F3 X1 LPF VCC + NR BIAS X1 TAPE/AUX +
NC
20 MSMODE MS MODE 19 DRSW 18 TAPESW 17 INSW 16 NC
MS ON/ 15 NC OFF DETECT 14 MSOUT 13 DGND
12 MSTC 11 G1FB
10 G2FB
IC331
LC75373ED
LTOUT LSIN LS1 LVRIN LCOM LS2 LS3 LT1 LT2 LT3 LSOUT
33
32 +
31 30
29
28 27 26
25 24
23
+
+
+ + +
22 LFIN 21 LFOUT
1
RVRIN
2
RCOM
3 4
RT1 RT2
5
RT3
6 7 8
RTOUT RSIN RS1
9 10
RS2 RS3
11
RSOUT
29
+
+
+
+
R1 R2 R3 R4 RSELO
40 41 42 43 44
+
+
VDD 39
+ +
LSELO L4 L3 L2 L1
34 35 36 37 38
+
+
20 LROUT
19 VREF DECODER LATCH SHIFT REGISTER CONTROL 18 17 16 15 CE DI CL VSS 14 RROUT
+ +
13 RFOUT 12 RFIN
IC351
GND 1
LB1638M
10 N.C.
IC581
BA8270F-E2
BUS ON 1
BUS ON SWITCH RESET SWITCH BATTERY SWITCH
14 VCC
CONTROL LOGIC
IN1 2
9 OUT1 8 VS 7 OUT2
RST 2
BATT 3
13 12 11 10
RST BUS ON CLK IN BU IN
VCC 3 IN2 4 GND 5
6 N.C.
CLK 4 VREF 5 DATA 6 GND 7
9 DATA IN 8 DATA OUT
IC611
BA3918-V2
REGULATOR
OVER VOLTAGE PROTECT + 11
FM
1
NC
2 3 4
MODE2 MODE1 STB
5
VDD
6
AMP
7
VCC
8
ANT
9
COM
10
AM
30
GND
+
+
+
12