Document text
SERVICE MANUAL
XR-C5090
E Model
Refer to RM-X4S SERVICE MANUAL (9-925-698-11) issued
previously for information of remote commander (RM-X4S)
supplied with this set
Model Name Using Similar Mechanism XR-C340
Tape Transport Mechanism Type MG-25F-136
SPECIFICATIONS
Cassette player section Power amplifier section
Tape track 4-track 2-channel stereo Outputs Speaker outputs
Wow and flutter 0.08 % (WRMS) (sure seal connectors)
Frequency response 30 – 18,000 Hz Speaker impedance 4-8 ohms
Signal-to-noise ratio 58 dB Maximum power output 40 W x 4 (at 4 ohms)
Tuner section
FM
Tuning range FM tuning interval:
50 kHz/200 kHz
switchable
87.5 - 108.0 MHz
(at 50 kHz step)
87.5 – 107.9 MHz
(at 200 kHz step)
Antenna terminal External antenna connector
Intermediate frequency 10.7 MHz
Usable sensitivity 8 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 65 dB (stereo),
68 dB (mono)
Harmonic distortion at 1 kHz
0.5 % (stereo),
0.3 % (mono)
Separation 35 dB at 1 kHz
Frequency response 30 - 15,000 Hz
Capture ratio 2 dB
AM
Tuning range AM tuning interval:
9 kHz/10 kHz switchable
531 ~ 1,602 kHz
(at 9 KHz step)
530 - 1,710 kHz
(at 10 kHz step)
Antenna terminal External antenna connector
Intermediate frequency 10.71 MHz/450kHz
Sensitivity 30 рУ
ШЕ НЕН
MICROFILM
General
Outputs Power antenna control
lead / Power amplifier
control lead / Telephone
ATT control lead
Rear line out (1)
Tone controls Bass +8 dB at 100 Hz
Treble +8 dB at 10 kHz
Power requirements 12 V DC car battery
(negative ground)
Dimensions Approx. 188 x 58 x 181
mm (w/h/d)
Mounting dimensions Approx. 182 x 53x 164 mm
(w/h/d)
Mass Approx. 1.2 kg
Supplied accessories Parts for installation and
connections (1 set)
Front panel case (1)
Rotary commander RM-
X4S
Design and specifications are subject to change without
notice.
FM/AM CASSETTE CAR STEREO
ON Y.
SECTION 6
DIAGRAMS
6-1. IC PIN FUNCTION DESCRIPTION
е MAIN BOARD ІС501 uPD17708GC-567-3B9 (SYSTEM CONTROLLER)
|
2
3 : | E |
Tape position detect input from tape operation switch on the mechanism block
4
6 | TAPEON | О | Tape system power supply on/off control signal output terminal “H”: tapeon /--Ҙ(
7 | CMON | O | Capstan/reel motor (M901) drive signal output terminal “H”: motoron пот
9 LM LOD 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)
LM EJ | pn |
амы (For the eject direction and reverse side operation) *1
10 TUNON го! Tuner system power supply on/off control signal output to the BA3918 (IC611) “H”: tuner on
11 FM ON ЕШ FM system power supply on/off control signal output to ће BA3918 (IC611) “Н”: FM оп
12 PW ON Ей Main system power supply on/off control signal output to the BA3918 (IC611) “H”: power оп
13 | MT |o. Line muting control signal output terminal “H”: line muting on
Ne
4 | — VOLCE | O |Chipenable signal output to the electrical volume (C331)
Is | морско | O | Serial data transfer clock signal output to the electrical volume (C331)
6 | — VOLSO | O | Serial data output to the electrical volume (C33)
17 EO j O f Sta а tre MM RR
18 AMPMUT Muting control signal output to the power amplifier (1C751) “L”: muting on
19 DX/LO ЕШ Local/DX selection signal output to the FM/AM tuner unit (TUI) "L^: DX, “H”: local
20 AM MONO o AM forced monaural signal output terminal Not used (open)
2 | — GND | — | бшер
Destination setting terminal (frequency select switch (8502) input terminal)
22 DSTSEL I
un “L”: AM 9k step or FM 50k step, “H”: AM 10k step or FM 200k step
23 DBASIN D-BASS switch (SW951) input (A/D input)
Key input terminal (A/D input)
24 KEYINI I А. INTRO 1, REPEAT 2, SHUF 3, BL SKIP 6, АТА 5, 4, PRESET DISC +/— keys input
(LSW92] to LSW927, LSW929 and LSW930)
ram Key input terminal (A/D input)
25 KEYINO I OFF, SOURCE, MODE 4», + PP PPI SEEK AMS, - 44 49 SEEK AMS, VOLUME -,
SEL, VOLUME +, АТТ, DSPL, BTM, LCL keys input (LSW901 to LSW912)
26
27
28
29
30 | — vpp2 | — | Powersupply terminal SV)
31
32
3 | амо |- | Groundterminl пп
| М0 | O jNeued(pe o O
8 | Eoi |0 | Main charge-pump control signal output terminal o
36
37 | Nco | o | кшебра oo
38 | SEKOUT | O | Seek control signal output to the FM/AM tuner unit (TUD o
39 | MW/SW | О | MW/SW selection signal output to the FM/AM tuner unit (TUI). “L”: МУУ, "НИ па
40 | BEP | O | Beep sound output terminal
-15-
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function
41 KEYACK I : . . eqq
and eject keys in the power off status Оп at input of “H
42 BU IN 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
43 MTLSEL ПО | At manual mode: METAL on/off control signal output terminal (“Н” output: METAL оп)
At auto mode: input at MTLIN (pin 69)
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)
44 DOLON I/O app
At normal mode: dolby on/off control signal output ( ^H" output : dolby on)
Not used this function in this set (fixed at ^H")
45 "AMSIN I 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 (TUI), and output of forced
46 ST 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”
47 AMS ON 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)
48 N/R OUT
“L: forward direction, “H”: reverse direction
49 TAPMUT | o | 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) “Н”: power on
i re At иа 4. 2. on mode: “H” output at the accessory on
At power select switch (S501) off mode: *H" output at the power оп
5] 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”
52 Detects Ше removal of Ше attaching and removing type front panel block “L”: attaching
53 Telephone muting signal input terminal At input of “L”, the signal is attenuated by —20 dB
54
55 Accessory detect signal input terminal “L”: accessory on
56 Setting terminal for the test mode “L”: test mode (normally fixed at “H”)
57
Power select switch (S501) input terminal
= “L”: position A ee a position B (operation mode)
s oppi ben iier er NM
60 | ADON | O | Power supply on/off control signal output for the A/D conversion
T
62
63 I Setting terminal for the illumination color “L”: amber, “H”: green (fixed at ^H")
64 | LCDCE | O | Chip enable output to the liquid crystal display ймег (90)
6 | LCDCKO | O | Serial data transfer clock signal output to the liquid crystal display driver C901) |
66 | LCDSO | o| Serial data output to the liquid crystal display driver (1С901)
67 LCDINH Blank indicate control signal output to the liquid crystal display driver (IC901)
“L”: no display
68 UNICKI erial data reading clock signal input terminal (for SONY bus)
5
Serial data output to Ше bus interface (1С581) (for SONY bus)
AG
69 UNISO
70 UNISI Serial data input from the bus interface (1С581) (for SONY bus)
71 | UNICKO | O | Serial data transfer clock signal output to the bus interface (1С581) (for SONY bus)
12 | BUSON | о | Bus on/off control signal output to the bus interface (IC581) (for SONY bus) “L”: bus оп
73 | SYSRST | O | Reset signal output to the bus interface (IC581) (for SONY bus) “L”: reset
74 | VREG | о | CPU regulator output terminal Connected to capacitor
Ground terminal
76 | xor | о Main system clock output terminal (4.5 MHz)
77 Main system clock input terminal (4.5 MHz)
78 CPU chip enable signal input (fixed at ^H")
19 | урр |— Power supply terminal (+5V)
ae System reset signal input from the reset signal generator (1С551) and reset switch (S551)
80 RESET І 66 55. * Ы Н ec 99
L” is input for several 100 msec after power on, then it changes to “H
#1 loading/tape operation motor control
STOP LOADING/ EJECT/ BRAKE
TERMINAL FORWARD | REVERSE
LM LOD Gn 9)
DE n O;
|=
ІС Block Diagrams – MAIN Board -
IC301 CXA2509AQ-T4
сч
= 2 g 2
2 дей š P oS 2.8
а а O e < Q a г Z >
(30)——(29)-(28)-27)—(26) (24)— (030201
24dB
Ш
(20) MSMODE
РВЕВІ Lou uoe H 99 овви
sta ER | | рови
PBREF1 (33) СЕЕ
а TAPE EQ
NC
FWD/RVS T
vec -—CQ) м5ом/ (15) NC
OFF
В ОЕТЕСТ
fp | a
(12) MSTC
T 11) G1FB
Z
D
о
Lu
2
—1
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е
РВҒІМ2 MSOUT
PBREF2 DGND
PBRIN2
PBFB2
т - т- т- LL.
o Е 8 ЕЕ а. z 2 Е
ca o ^ ux D O
а a %2 =
а =
IC331 LC75373ED
— 29 —
IC351 LB1638M ІС581 ВА8270Ғ-Е2
BUS ON VCC
SWITCH Ч
ВЕЅЕТ =
SWITCH 8 88
BATTERY D 22.
SWITCH (9 BU IN
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O
—
=
O
а
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Z
Q
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ІС611 BA3918-V2
REGULATOR
| OVER VOLTAGE
PROTECT
-40-