Jvc 4VR 5456 Service Manual

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No. 2321

SERVICE MANUAI.

1 0J J J Mi <4 L e
I I i i' I

MODEL 4VR-5456

FM/AM 4CHANNEL STEREO RECEIVER
WITH CD-4 DEMODULATOR

D-15-7/8" WEIGHT : 44lbs.
(40.5cm)

DIMENSIONS 2 H-7-1/8.
(180m)

SPECIFICATIONS

W-ZO" .
(50.80m)

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POWER AMPLIFIER SECTION

Circuit

Total Dynamic Power

RMS Power (lkHzI
All Channel Driven

: Pure Complementary 0.0L,
: 280W at 89.. 400W at 4m

:at 89 180W (45w x4)

at 452 232W (58W X 4)

SEA Control Range
(From, Rear)
Loudness Control

Low Cut Fllter

:zIZdB
3+1 [dB at SOHZ

6dB al. IOkHz

: -10dB 31501-12

BTL :al 851 220WII10W x 2) High Cut Filter 2 -10dBat10kHz
IHF Power Bandwidth ' 20Hz~30kH2 Crosstalk I 50:18 at lkHz
RMS Power _ FM TUNER SECTION
A Channel OWE Tuning Range : SSMHZ to 108MHz
20~20kHz Power Usable Sensmwty : 1.8uV(IHF)
Bandwidth : at 8:: 42W;CH. Total Harmonic Distortion
7 7 at m VIEW/CH. (a: 40H2, 100% Mott) : Mono 0.3%
Total Harmonic Distortion Stereo 0.4%
(at Rated Output) : Inpul Aux 0.5% Signal to No.59 Rano GSdB
Intermodulation Distortion Selectimty 65dB (IHF)
(at Rated Output) : Input Aux 0.8% Capture Ratio 1.2dBIIHF)
Frequency Response : Input Aux 10Hz to 50kHz : MB Image Rejection SOdB
Load Impedance : 4-16:z.lBTL.4Ch 1+2)8~16:z IF Rejection : 90mg
Damping Factor ? 10 El 85; Spurious Signal Rejection : 85dB
PREAMPLIFIER SECTION Stereo Separation 38dB
Circuit : Direct Coupled Amplifier AM Suppression 50dB
Signal to Norse Ratio : Phone (Low) 70dB Sub Carrier Suppresswn 50dB
Phono (High) GSdB SCA Carrier Suppression SSdB
Aule 75dB Stereo Auto Switching
Aux-2 75dB Level toyv
Tape Play 75dB Mutrng Level : lOuV
Input Sensitivity for Rate Frequency Response : 20Hz to lSkHz : IdB
Power : Phono (bow) SJOmV Antenna Input Impedance : 3001:3alanced.75ft Unbalanced
Phono (High) 1,5mv Inter Station Muting : Yes
Aux-l (4ch) 150mV FM Detector
Aux-2 (Jch) lSOmV Output Voltage
Tape Mani. (DIN-26h) 200mV lat 400Hz, 100% Mod.) I l30mV
Tape Moni. (Pin-4cm 150mV Output Impedance :Soktz
Recording Output : Tape Rec, (DIN-Zeb) 30mV IF Stage : 31C. 6 Element. Mechanical Fillets
Tape Rec. (Pin-uh) 200mV Front End 1 4 Gang, IFET

SEA Center Frequency
(Front) Rear)

2 40, 250. Ht. 5k.15kHz
VICTOR COMPANY OF JAPAN, LIMITED.

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MW TUNER SECTION

Tuning Range : 525 kHz to 1605kHz Mode Indicator : Yes (Mono. 20h Discrete 40h
Usable Sensitivity : 30uV, 200uV/m Matrix-1, Matrix-2)
Signal to Noise Ratio : soda Source Indicator : Yes (AM, FM, Phone. Aux-1,
Selectivity : 30d]! Aux-2)
Image Rejection : 45dB CD-4 Indicator : Yes
IF Rejection : 50GB Jacks
Antenna : Built-in Ferrite Core Antenna Head Phone Jack : Yes (Front, Rear)
Front End : 2 Gang Tape Monitor Jack : Yes
IF Stage : 1 Mechanical Filter Remote Control Jack : Yes
FRONT PANEL ATTACHMENTS REAR PANEL TERMINAL & CONTROLS
Power Switch : Lever Switch FM Antenna Terminal : Yes (3009, 75:1)
Function Selector : AM,FM,Phono(CD-4)_ AM Antenna Terminal : Yes
Aux-1 Auxa Speaker Terminals : System-1. System-2.
Audio Muting : Yes (ends) (One Touch Type)
FM Muting : Yes FM Det Out : Yes
Loudness I Yes AC Outlet : Yes (Switched, Umwitched)
Low Cut Filter 1 Yes DIN Jack : Yes
High Cut Filter : Yes Input Terminals (20H) : Phono
Tape Monitor : Yes (1,2) (4CH) : Aux-1, Aux-2, Tape-1
Mono : Mode Switch Tape-2 FM 40h input
Volume Control : Yes CD-4 Separation Control
Mode : Mono.20h,Discrete 4011. Volume : Yes
Matrix-1, Matrix-2 CD4-30kHz Level Adjust : Yes
SEA Slide Controls, : Yes (Front, Rear) Phono Sensitivity Switch : High. low
SEA Recording Switch : Yes FM 40h Input Switch : Yes
Speaker Selector : BTL 1+2, BTL-2, BTL-l, FM INT Antenna Switch : Yes
ofi,4Ch-1.4Ch-2,4Ch 1 + 2 40h Scope Out Terminals : Yes
Balanoe Control 7 Yes (4Independent)
Signal Meter 2 Yes
Center Tuning Meter : Yes

FM Stereo Only Switch : Yes

REMOVAL OF THE TOP COVER AND BOTTGVI PLATE

1 Remove 4 screws through the Both Sides of the top cover.
2. Remove the top cover.
3. Remove screws from Bottom plate and remove the bottom plate from the chassis.

Dwg. No. Parts No. Parts Name
1 DL-ED92383 Wooden Case
2 E48193-001 Washer
3 SDSPIIOZORS Screw
4 848599-001 Foot
5 SDSB4010N Tapping Screw
6 E21316-001 Bottom Plate

Fig. l

FINAL PACKING ASSY

Dwg. No. Parts No. Parts Name
1 4VR-5456-PK Canon Case
2 4VR-5466-NZ Packing Materials Fig. 2

4VR-5456 - 2 _