Sanyo JJ-P5 - User Manual

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Service

Manual

SPECIFICATIONS

Power

Source

ntaes

aon

een

cutee

tend

1.5V

Ni-cd

battery

..0.0000000000.

ooo.

NB-600

(UM-3,

Cell,

Mignonzelle,

Output

Power

....0000..000000..

ccc

eee.

5mW

(Max.)

Current

Consumption

(at

Vol.

Min.)

Playback

mode

..........................

180mA

Fast

Forward/Rewind

mode............

300mA

Tape

Speed

2.0000...

1-7/8ips.

+3%

Fast

Forward/Rewind

Time

..............

200sec.

(with

C-60)

Torque

Playback

200000

ccccccc

cee

eeee

40g-cm

Fast

Forward/Rewind

...................

than

45g-cm

Specifications

subject

change

without

notice.

Stereo

Cassette

Player

JJ-P5

(europe)

PRODUCT

CODE

No.

142

473

(Black)

142

473

(White)

142

473

(Red)

Wow

Flutter

.....0.00000000

ee,

0.6%,

RMS

Frequency

Response

(P/B

Dolby

OFF)

O20

pista

iede

cenmairatectcet

seed

63Hz

10,000Hz

EBSS/BRSS

Switch:

(at

63Hz)

.....

+17dB

+5dB

Signal

Noise

Ratio

(w/Fe203)

.........

than

42dB

Crosstalk

(w/Fe203)

Track

............

ieee

ced

than

50dB

Channel

Separation

(w/Fe203)

.........

than

30dB

Hum

Noise

(at

Vol.

Min.)

................

—70dBs

Terminal

Impedance

Headphones

................

0.0...

eee

1000

Dimensions

(Max.)

................

69.8(W)

104.5(H)

18.5(D)

Weight

(w/o

batteries)

....................

138g

REFERENCE

No.

WM-221

Main Page

Need help?

Do you have a question about the Sanyo JJ-P5 and is the answer not in the manual?

The Sanyo JJ-P5 is a stereo cassette player designed for portable audio playback. It offers a range of features for both listening and maintenance, making it a versatile device for its time.

Function Description

The JJ-P5 primarily functions as a stereo cassette player, capable of playing back standard cassette tapes. It supports both forward and reverse playback modes, indicated by the "Fast Forward/Rewind" and "Fast Forward/Rewind Mode" specifications. The device includes a Dolby NR switch for noise reduction, enhancing audio quality during playback. It also features an EBSS/BRSS switch, likely for bass boost or similar audio enhancement. The unit is equipped with a volume control and a headphone jack for private listening. Power can be supplied via Ni-Cd batteries or an external power source.

Important Technical Specifications

Power Source:

DC: 1.5V (Ni-Cd battery)
External Power: 3V (UM-3, HP-7, AA Cell, Mignon Zelle, R6) x 2

Current Consumption (at Vol. Min.):

Playback: 180mA
Fast Forward/Rewind: 300mA

Tape Speed:

1-7/8 ips, ±3%

Fast Forward/Rewind Time:

90 seconds (with C-60 cassette)

Torque:

Playback: 25 – 40g-cm
Fast Forward/Rewind: More than 45g-cm

Wow & Flutter:

0.8% RMS

Frequency Response (P/B Dolby OFF):

Fe2O3: 63Hz ~ 10,000Hz
EBSS/BRSS Switch: ON (at 63Hz): +17dB ~ 5dB
Signal to Noise Ratio (w/Fe2O3): More than 50dB
Crosstalk (w/Fe2O3): More than 50dB
Track to Track: More than 30dB
Channel Separation (w/Fe2O3): More than 70dB

Hiss & Noise (at Vol. Min.):

-70dBs

Terminal Impedance:

Headphones: 8 ~ 100Ω

Dimensions (Max.):

69.8(W) x 104.5(H) x 18.5(D)mm

Weight (w/o batteries):

135g

The device is available in three color variations: Black (142 473 70), White (142 473 71), and Red (142 473 72).

Usage Features

The JJ-P5 is designed for portability, indicated by its compact dimensions and lightweight nature (135g without batteries). It uses common AA-sized batteries (UM-3, HP-7, AA Cell, Mignon Zelle, R6) for convenience. The inclusion of a Dolby NR switch allows users to improve audio clarity by reducing tape hiss, a common issue with cassette playback. The EBSS/BRSS switch provides an option for bass enhancement, catering to different listening preferences. The device features a "Tape Select Switch" (S301) which likely allows selection between different tape types (e.g., Normal, Metal) to optimize playback quality. A "Tape Direction Switch" (S307) controls the playback direction, while "Rewind Switch" (S304) and "F.FWD Switch" (S305) facilitate tape navigation. The "Dry Cell Switch" (S308) is also present, likely for battery management.

Maintenance Features

The manual provides detailed instructions for disassembly and adjustment, indicating that the device is designed to be serviceable.

Disassembly Instructions:

General Remarks: Emphasizes using a soft rubber mat to prevent scratches and grease stains, avoiding static electricity to protect components, and noting screw types and lead arrangements for correct reassembly. It also advises removing the cassette tape and batteries before disassembly.
Cabinet Bottom Removal: Involves removing four screws and detaching the cabinet bottom after opening the battery compartment lid.
P.C.Board Removal: Requires detaching the cabinet bottom, unsoldering battery and reverse switch leads, and removing a screw to lift the P.C.Board.
Frame Removal: Involves detaching the P.C.Board, removing five screws, and pulling the frame in the indicated direction.
Cassette Lid Removal: Requires detaching the P.C.Board and Frame, removing a screw for the Hinge Bracket, and then removing two screws to detach the Cassette Compartment Lid after pressing the STOP/EJECT button.

Adjustment Procedures:

General Remarks: Advises cleaning contacting surfaces with a cotton swab and alcohol, handling the belt carefully, and replacing deteriorated rubber parts. It also notes that the model features an Auto Reverse Mechanism and provides instructions for setting the tape transport to the FORWARD DIRECTION for adjustments.
Equipment Required: Lists necessary tools such as Frequency Counter, Dual Trace Oscilloscope, VTVM, Dummy Load (16Ω), Test Tapes (TEAC MTT-111, A-BEX TCC-153), and an Alignment Tool.
Adjustment Procedure: Includes steps for adjusting Tape Speed (using a Frequency Counter and TEAC MTT-111 test tape) and Head Azimuth (using a VTVM or Oscilloscope and A-BEX TCC-153 test tape). Potentiometer for Tape Speed Adjustment and Azimuth Adjusting Holes are clearly illustrated.

The manual also includes comprehensive parts lists (Cabinet, Mechanism, P.C.Board) with exploded views, IC & Transistor Lead Identification, a Schematic Diagram, and Reference Voltages, all of which are crucial for detailed repair and maintenance.