Service Dept.: 5-66 Azuma , Kitamoto-shi, Saitama 364-0007 Japan
Tel: +81-48-541-2335 / 2432 FAX: +81-48-541-2703
Service Manual
SUBARU Automobile Genuine
MW/FM 6-Disc CD Changer Deck
Published by Service Dept.
298-6005-00
Printed in Japan
Nov.2002 P
SPECIFICATIONS
Radio section
Tuning system:PLL Frequency synthesizer system
Receive range:MW530 kHz to 1,710 kHz
FM87.75 MHz to 107.9 MHz
WB162.400 MHz to 162.550 MHz
Intermediate frequency:
MW450 kHz
FM10.7 MHz
Quieting sensitivity:MWLess than 35 dBu
(at 20 dB S/N)
FMLess than 15 dBu
(at 30 dB S/N)
WBLess than 10 dBu
(at 20 dB S/N)
Separation:FMMore than 20 dB
Auto tuning stop sensitivity:
MW32 +6/-6 dBu
FM24 +6/-6 dBu
WB-1 +5/-5 dBu
Model
PF-2520I-A
(Genuine No.86201AE38A)
NOTE
We cannot supply PWB with component parts in principle.
When a circuit on PWB has failure , please repair it by component parts base. Parts which are not mentioned in service manual are not supplied.
Specifications and design arevsubject to change without
notice for further improvement.
COMPONENTS
PF-2520I-A
Main unit-----------1
CAUTIONS
Use of controls, adjustments, or performance of procedures
other than those specified herein, may result in hazardous
radiation exposure.
The COMPACT DISC player should not be adjusted or repaired by anyone except properly qualified service personnel.
CD section
Disc:Compact disc (8 cm / 12 cm)
Separation:More than 65 dB
S/N ratio:More than 80 dB
Distortion:Less than 0.1 % (at 20 kHz LPF)
General
Output level:More than 2.5 V x 4 (at CD 1 kHz 0dB)
Typ. 3.0 V x 4
Power supply voltage: DC13.2 V (10.8 V to 15.6 V)
Negative ground
Current consumption: Less than 3A
Dimensions(mm):178 (W) x 100 (H) x 176.5 (D)
Weight:2.4 kg
- 1 -
PF-2520I-A
Page 2
To engineers in charge of repair or
inspection of our products.
Before repair or inspection, make sure to follow the
instructions so that customers and Engineers in
charge of repair or inspection can avoid suffering
any risk or injury.
1. Use specified parts.
The system uses parts with special safety features against
fire and voltage. Use only parts with equivalent characteristics when replacing them.
The use of unspecified parts shall be regarded as remodeling for which we shall not be liable. The onus of product
liability (PL) shall not be our responsibility in cases where
an accident or failure is as a result of unspecified parts
being used.
2. Place the parts and wiring back in their original positions
after replacement or re-wiring.
For proper circuit construction, use of insulation tubes,
bonding, gaps to PWB, etc, is involved. The wiring connection and routing to the PWB are specially planned using clamps to keep away from heated and high voltage
parts. Ensure that they are placed back in their original
positions after repair or inspection.
If extended damage is caused due to negligence during
repair, the legal responsibility shall be with the repairing
company.
3. Check for safety after repair.
Check that the screws, parts and wires are put back securely in their original position after repair. Ensure for safety
reasons there is no possibility of secondary ploblems
around the repaired spots.
If extended damage is caused due to negligence of repair,
the legal responsibility shall be with the repairing company.
4. Caution in removal and making wiring connection to the
parts for the automobile.
Disconnect the battery terminal after turning the ignition
key off. If wrong wiring connections are made with the battery connected, a short circuit and/or fire may occur. If extensive damage is caused due to negligence of repair, the
legal responsibility shall be with the repairing company.
5. Cautions regarding chips.
Do not reuse removed chips even when no abnormality is
observed in their appearance. Always replace them with
new ones. (The chip parts include resistors, capacitors,
diodes, transistors, etc). The negative pole of tantalum
capacitors is highly susceptible to heat, so use special care
when replacing them and check the operation afterwards.
6. Cautions in handling flexible PWB
Before working with a soldering iron, make sure that the
iron tip temperature is around 270
ply the iron tip repeatedly(more than three times)to the
same patterns. Also take care not to apply the tip with force.
7. Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the unit.
8. Cautions in checking that the optical pickup lights up.
The laser is focused on the disc reflection surface through
the lens of the optical pickup. When checking that the laser optical diode lights up, keep your eyes more than 30cms
away from the lens. Prolonged viewing of the laser within
30cms may damage your eyesight.
. Take care not to ap-
9. Cautions in handling the optical pickup
The laser diode of the optical pickup can be damaged by
electrostatic charge caused by your clothes and body. Make
sure to avoid electrostatic charges on your clothes or body,
or discharge static electricity before handling the optical
pickup.
9-1. Laser diode
The laser diode terminals are shorted for transportation in order to prevent electrostatic damage. After
replacement, open the shorted circuit. When removing the pickup from the mechanism, short the terminals by soldering them to prevent this damage.
9-2. Actuator
The actuator has a powerful magnetic circuit. If a
magnetic material is put close to it. Its characteristics will change. Ensure that no foreign substances
enter through the ventilation slots in the cover.
9-3. Cleaning the lens
Dust on the optical lens affects performance. To
clean the lens, apply a small amount of isopropyl
alcohol to lens paper and wipe the lens gently.
- 2 -PF-2520I-A
Page 3
EXPLANATION OF IC
052-3176-10 M30620MCA-F70GPSystem Controller
1.Terminal Description
pin 1: FUNCTION 2:IN : Low = without MD.
pin 2: FUNCTION 3:IN : Low = without Cassette tape.
pin 3: AREA 1:IN: The destination setting input.
pin 4: AREA 2:IN: The destination setting input.
pin 5: CLK SEL:IN : Low = without Clock.
pin 6: BYTE: IN : Connect to the ground.
pin 7: CN VSS:IN : Connect to VSS.
pin 8: WB SD:IN : WB station detect signal input.
pin 9: VFD ON: O : VFD ON signal output.
pin 10: RESET: IN : Reset signal input.
pin 11: X OUT: O : Crystal connection.
pin 12: GND: - : Ground.
pin 13: X IN: IN : Crystal connection.
pin 14: VDD: - : Positive supply voltage.
pin 15: NMI:IN : Pull up.
pin 16: BU DET: IN: Backup detection signal input.
pin 17: ACC DET:IN : ACC detection signal input.
pin 18: NU: - : Not in use.
pin 19: Ce-NET RX: IN : The serial data input from Ce-NET.
pin 20: ILL ON:IN : Illumination ON signal input.
pin 21: AUDIO OUT: O : Audio signal output command output for
pin 22: NAVI MUTE: O : Muting signal output to suppress the
pin 23: LINE MUTE: O : The line mute signal output.
pin 24: BEEP: O : Beep out.
pin 25: TIME BASE: IN : Time base pulse input.
pin 26: DX/LO: O : DX/Local select signal output.
pin 27: Ce-NET RX: IN : The serial data input from Ce-NET.
pin 28: Ce-NET TX: O : The serial data output to Ce-NET.
pin 29: IX-6 TX: O : Serial data output.
pin 30: IX-6 RX: IN : Serial data input.
pin 31: ST: IN : The stereo flag input.
pin 32: AMP ON: O : Audio power amplifier ON signal output.
pin 33: NU: - : Not in use.
pin 34: NU: - : Not in use.
pin 35: NU: - : Not in use.
pin 36: NU: - : Not in use.
pin 37: NU: - : Not in use.
pin 38: NU: - : Not in use.
pin 39: ANT ON: O : Antenna ON command output.
pin 40: SYS ACC: O : ACC detect signal output.
pin 41: SYS ON: O : System ON signal output.
pin 42: AMP MUTE: O : Muting signal output to the Audio Power
pin 43: TEL ON:IN : Telephone ON signal input.
pin 44: PLL DI: IN : Serial data input from the PLL IC.
pin 45: VFD BLANK: O : Blank pulse output to the VFD driver.
pin 46: EEP CEO: O : The chip enable signal output to EEP-
pin 47: EEP CLK: O : The clock pulse output to EEP-ROM.
pin 48: EEP DO: O : The serial data output to EEP-ROM.
pin 49: EEP DI:IN : The serial data input from EEP-ROM.
pin 50: MD 8V: O : Control signal output to the power supply
pin 51: MD LD: IN : Disc-in signal input from the MD mecha-
pin 52: MD SI: IN : Serial data input from the MD mechanism.
pin 53: MD X SRQ:IN : Request signal input from the MD mech-
pin 54: MD RESET: O : Reset pulse output to the MD mechanism.
pin 55: MD SO: O : Serial data output to the MD mechanism.
pin 56: MD X SCK: O : The clock pulse output to the MD mech-
pin 57: MD X CS: O : The chip selection signal output to the
pin 58: MD WP: O : Wake up signal output to the MD mech-
Ce-NET.
noise without Navigation sound interrupting.
Amplifier.
ROM.
circuit.
nism.
anism.
anism.
MD mechanism.
anism.
pin 59: CD 8V: O : Power supply control signal output for the
pin 60: VDD: - : Positive supply voltage.
pin 61: CD 5V: O : 5V power supply ON signal output for CD.
pin 62: GND: - : Ground.
pin 63: BUC 0:I/O:CD IC Data input / output.
pin 64: BUC 1:I/O:CD IC Data input / output.
pin 65: BUC 2:I/O:CD IC Data input / output.
pin 66: BUC 3:I/O:CD IC Data input / output.
pin 67: BUC CLOCK: O : CD IC clock pulse output.
pin 68: CD CE: O : CD chip enable pulse output.
pin 69: CD RESET: O : The reset pulse output to the CD IC.
pin 70: S STOP: IN : Inside limit signal input from the CD
pin 71: SUB Q SYNC :IN : Sub Q Sync signal input.
pin 72: CHU SW:IN: CD disc chucking signal input.
pin 73: NU: - : Not in use.
pin 74: TR B:IN: Photo sensor signal input from the CD
pin 75: TR A:IN: Photo sensor signal input from the CD
pin 76: LD CNT: O : Loading control signal output.
pin 77: LD MUTE: O : Muting signal output to the CD mecha-
pin 78: Serial DO: - : The serial data output.
pin 79: VFD DI: IN : Serial data input from the VFD driver.
pin 80: CKO: O : Clock pulse output.
pin 81: CEO: O : Chip enable output.
pin 82: VFD RESET: O : The reset pulse output to the VFD driv-
pin 83: E VOL 1L: IN : Pulse signal input from the rotary encod-
pin 84: E VOL 2L: IN : Pulse signal input from the rotary encod-
pin 85: NU: - : Not in use.
pin 86: NU: - : Not in use.
pin 87: POWER SW:IN : Power switch ON signal input.
pin 88: IX-6 LOAD: IN : IX-6 loading signal input.
pin 89: TP/MD EJ: IN : Tape/MD eject signal input.
pin 90: CD/IX-6 EJ: IN : CD/IX-6 eject signal input.
pin 91: IX-6 REQUE: IN : Reuest signal input from IX-6.
pin 92: VFD CS: O : CS signal output to VFD driver.
pin 93: VFD CP: O : CP signal output to VFD driver.
pin 94: A VSS: - : Analog ground.
pin 95: VFD DO: O : The serial data output to the VFD driver.
pin 96: Vref: - : Reference voltage.
pin 97: A VCC: - : Positive supply voltage for the internal
pin 98: DIM C SEL: IN : Low = Without dimmer canceller.
pin 99: ILL CONT: IN : The input terminal of internal ADC for