Clarion DPH910, DPH913 Service Manual
Clarion Co., Ltd.
5-35-2, Hakusan, Bunkyouku, Tokyo, 112-8608 Japan
Service Dept.- 50 kamitoda,Toda-shi,Saitama,335-8511 Japan Tel: 048-443-1111 FAX: 048-433-6996
Service Manual
DIGITAL GRAPHIC & PARAMETRIC EQUALIZER/DSP/CROSSOVER PROCESSOR MODULE
Model
(GP-976B / FOR U.S.A.)
Model
(GP-976E / FOR EUROPE)
Published by Service Dept.
298-5921-00
Printed in Japan
Jul.2001 P
■SPECIFICATIONS
S/N retio: 107dB(digital input)
83dB(analogue input)
Frequency response: 10Hz to 20kHz(
Separation: 100dB(digital input)
80dB(analogue input)
Harmonic distortion: 0.006%(digital input,1kHz)
0.006%(analogue input,1kHz)
Voltage gain: 2.5dB(volume max. 4V pre-out)
Analogue input: 1.5VRMS(max.)
Digital input: 44.1kHz sampling frequency,
16-bit digital audio data
A/D conversion: 20-bit linear, 64 times oversamping
D/A conversion: 24-bit linear, 128 times oversamping
DSF: BASIC 12 modes
USER 6 modes
Graphic Eq.(7bands): BASIC 6 modes
USER 6 modes
Virtual Space Eq.: BASIC 6 modes
USER 6 modes
Parametric Eq.: 3 bands x 2(independent front/rear)
Centre freq. 20Hz to 20kHz,
1/3 octave steps, 31 points
Q curve 1 to 20
Gain
Preset 6 types
Auto loudness: on/off
Subwoofer: Voltage gain +12dB
(max.woofer volume)
LPF fc
Through,50Hz,80Hz,120Hz
LPF Slope 24dB/oct
±1dB)
±12dB
Front/Rear: HPF fc
Through,50Hz,80Hz,120Hz
HPF Slope 18dB/oct
Power supply voltage: DC14.4V(10.8 to 15.6V)
negative ground
Power consumption: 560mA
Dimentions(mm): 230(W)x25(H)x170(D)
Weight: 0.95kg
※ Specification and design are subject to change without
notice for further improvement.
■COMPONENTS
GP-976B-51/GP-976E-51
Main unit −−−−− 1
Nameplate 287-1676-00 1
Ground lead 850-2715-00 1
CeNET cable 855-3421-00 1
RCA cable 855-8500-00 2
Parts bag
Mounting bracket 300-7362-00 2
Cord clamp 335-0833-01 2
Canoe clip 335-2515-00 4
Cable clip 335-3744-00 1
Machine screw(M4X8) 714-4008-80 4
−−−−−
■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.
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DPH910/913
■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
apply 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.
℃. Take care not to
■RESET SWITCH
When no sound is heard,press this switch.
Pressinng the reset switch performs the system check.
DPH910/913
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■BLOCK DIAGRAM
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DPH910/913
■EXPLANATION OF IC
052-7058-00 M30622MCA-E70FP DSP System Controller
1.Terminal Description
pin 1: NU : - : Not in use.
pin 2: D SEL 1 : O : Digital input selection.
pin 3: D SEL 2 : O : Digital input selection.
pin 4: D OFF : O : Digital input OFF = "H".
pin 5: EMPH : IN : The emphasis flag input.
pin 6: DIR ERR : IN: The digital-audio-interface-receiver error de-
tection flag input.
pin 7: NU : - : Not in use.
pin 8: BYTE : IN : The data length selection(8bit/16bit).
pin 9: CN VSS : IN : Inputting "L" at single mode operation.
pin 10: NU : - : Not in use.
pin 11: NU : - : Not in use.
pin 12: RESET : IN : Reset signal input.
pin 13: X OUT : O : Crystal connection.
pin 14: VSS : - : Negative supply voltage.
pin 15: X IN :IN : Crystal connection.
pin 16: VCC : - : Positive supply voltage.
pin 17: NMI :IN: Not in use.
pin 18: SYS ACC : IN : ACC detect signal input.
pin 19: B/U DET : IN : Backup voltage ON signal input.
pin 20: NU : - : Not in use.
pin 21: NU : - : Not in use.
pin 22: NU : - : Not in use.
pin 23: NU : - : Not in use.
pin 24: NU : - : Not in use.
pin 25: NU : - : Not in use.
pin 26: NU : - : Not in use.
pin 27: NU : - : Not in use.
pin 28: NU : - : Not in use.
pin 29: RX : IN : Serial data input from Ce-NET.
pin 30: TX : O : Serial data output to Ce-NET.
pin 31: Band Sel 3 : O : Spectrum analyzer band selection.
pin 32: Band Sel 2 : O : Spectrum analyzer band selection.
pin 33: Band Sel 1 : O : Spectrum analyzer band selection.
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: NU : - : Not in use.
pin 40: NU : - : Not in use.
pin 41: NU : - : Not in use.
pin 42: NU : - : Not in use.
pin 43: NU : - : Not in use.
pin 44: NAVI IN : O : Navigation audio signal interrupt flag output.
pin 45: NU : - : Not in use.
pin 46: NU : - : Not in use.
pin 47 : EMPTY : IN : The acceptable flag input for the DSP data
transmission.
pin 48: NU : - : Not in use.
pin 49: HR : O : The serial data output to the DSP IC.
pin 50: HR BCK : O : The bit clock output to the DSP IC.
pin 51: HRS : O : The shift clock output to the DSP IC.
pin 52: D CS : O : The chip selection signal output to the DSP
IC.
pin 53: D RESET : O : The reset pulse output to the DSP IC.
pin 54: D MUTE : O : The mute command output to the DSP IC.
pin 55: SYS MUTE : O : System mute signal output.
pin 56: ATT : O : Attenuation command output.
pin 57: LINE MUTE : O : Audio mute signal output.
pin 58: AD SEL : O : Input selection. Analog/Digital.
pin 59: DF RES : O : Reset pulse output to ADC-IC and DF-IC.
pin 60: NU : - : Not in use.
pin 61: NU : - : Not in use.
pin 62: VCC : - : Positive supply voltage.
pin 63: NU : - : Not in use.
pin 64: VSS : - : Negative supply voltage.
pin 65: NU : - : Not in use.
pin 66: NU : - : Not in use.
pin 67: NU : - : Not in use.
pin 68: VOL S : O : Serial data output to the electric volume IC.
pin 69: VOL CKS : O : Clock pulse output to the electric volume IC.
pin 70: VOL F : O : Serial data output to the electric volume IC.
pin 71: VOL CLOCK : O : Clock pulse output to the electric volume IC.
pin 72: VOL STB : O : Strobe pulse output to the Electric volume
pin 73: NU : - : Not in use.
pin 74: NU : - : Not in use.
pin 75: NU : - : Not in use.
pin 76: NU : - : Not in use.
pin 77: NU : - : Not in use.
pin 78: NU : - : Not in use.
pin 79: NU : - : Not in use.
pin 80: NU : - : Not in use.
pin 81: NU : - : Not in use.
pin 82: NU : - : Not in use.
pin 83: SYS P 1 : O : Power supply control signal output.
pin 84: SYS P 2 : O : Power supply control signal output.
pin 85: NU : - : Not in use.
pin 86: NU : - : Not in use.
pin 87: NU : - : Not in use.
pin 88: NU : - : Not in use.
pin 89: NU : - : Not in use.
pin 90: NU : - : Not in use.
pin 91: NU : - : Not in use.
pin 92: NU : - : Not in use.
pin 93: NU : - : Not in use.
pin 94: SPD : O : Spectrum analyzer data output.
pin 95: NU : - : Not in use.
pin 96: A VSS : - : Analog ground.
pin 97: NU : - : Not in use.
pin 98: Vref : - : Reference voltage
pin 99: A VCC : - : Positive supply voltage for the internal an-
pin100: NU : - : Not in use.
(for the sub woofer)
(for the sub woofer)
(for the front signal & the rear signal)
(for the front signal & the rear signal)
or the digital-audio-interface-receiver.
alog section.
DPH910/913
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