Fisher CR-W914 - User Manual

SEI
VICE
MANUAL
STEREO DOUBLE CASSETTE
DECK
142 501 09
SPECIFICATIONS
MOtOf wsiy: a icsteecsidés saeapivpecdosiccedetsasseresdaeocesessafses DC Governor Total Harmonic Distortion
Cassette Loading ....ceeccceccccsssccccseeeeeeseeceeeeeeseeseceetes (2) Front AtOMU, hand Asin send aii cia 1.5%
Drive: SYStOM i..0.. cs eseaseeedaceeeets sede oerveeecseveunveaaees (3) Capstan Fast Forward/Rewind Time
Number Of Heads i.ciciccccssescccscccssessdocestindseesseecedavessevesenscaedeces 3 (C260) cesarean 150sec.
Head Material .......... eect ee Hard Permalloy/Ferrite Level IndiCators 0.0... eer ee nneneeeeees L.E.D. Meter ~
OPGratiOn sicsccscceiidsecacsiacexicccssnedacedhsecvedeterecsensea (2) Mechanical Inputs (Sensitivity/Impedance) 0.0... eee eee eres (2) Line
Dubbing ............ Normal/High Speed 100mV/50kO
Wow & FLUtter oo... cceccceceteeeeerteeertessenaeneaeaenen 0.15% WRMS Outputs (Level at 0 VU/Impedance) ......... ee (2) Line
Signal-to-Noise Ratio (CCIR Weighted 500mV/2.2k0
Dolby NR OFF . .. 51dB Tape Selector Switch
Dolby NR ON 61dB DECK 4 tectsteneddsnedesitetiaies Auto Tape Selector
(Dolby is registered trademark of Dolby Laboratories.) DECK 2..... .... Normal, CrO2, Metal
EFASO RAtl Oviiccs cit sae, geocee chevnvepeeasescuebste dedeenseciveceswevstsaepee 70dB Tape Counter wcceie tegen eid Mechanical
Channel! Separation . sh ... 40dB GENERAL
Signal GrOSStalK i eccdebeccctvcsdvensccdecneansedeedbeity cue dhecveweesectens 70dB Power Requirements (50/60HZ) ..0..........ccsesessseeeeeeeee AC 220V
Frequency Response 1-7/8 ips. Power Consumption .......cccccccccccceccesecscecerevassesessveeeees 15Watts
Normal Tape (£3dB) ..........cceccsssssessseereereeee 50HzZ ~ 13kKHz Dimensions (WXHXD) oo... ccc ee cereeees 440 x 135 x 260mm
CrO2 Equivalent Tape (£3dB) 0... 50Hz ~ 14kHz Weight (@PPrOXx) ......c.ceccceeesececeseeeseececeseevecsesseseseseseeseeaees 3.8Kg
Metal Tape ($3dB) ....... cc esecesereeeeees 50HZ ~ 15kHz
= Speciications and design are subject te change without notice. —
REFERENCE Ne. Wii-570077

Summary

Specifications

Cassette Deck Electrical Adjustments

Adjustment Preparation

Procedures for cleaning, required instruments, and switch settings.

Core Adjustment Procedures

Steps for tape speed, azimuth, playback sensitivity, and bias.

Amplifier P.C.B. Alignment Points

Tape Speed Adjustment Point

Location of the P301 adjustment point.

Playback Sensitivity Adjustment Points

Location of P101 and P102 adjustment points.

Bias Adjustment Points

Location of P103 and P104 adjustment points.

IC & Transistor Lead Identification

TA7405 P Component Details

Pinout and orientation for TA7405P IC.

LB1423 N Component Details

Pinout and orientation for LB1423N IC.

TA7629 P Component Details

Pinout for TA7629P IC.

IC Functional Block Diagrams

Functional block diagrams for key ICs.

Fisher CR-W914 Specifications

General

Track System	4-track, 2-channel stereo
Tape Speed	4.76 cm/s
Motor	DC servo motor
Output	0.41V (line)
Heads	1 x record/playback, 1 x erase
Signal to Noise Ratio	58 dB (Dolby B on)
Wow and Flutter	0.08% (WRMS)