TASCAM CC-222 Technical Information

Important Information for Service Stations and Customers

TECHNICAL INFORMATION

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TASCAM CC-222, Click Noise

Symptom:

1. When tape play is stopped by Stop or Pause key, click noise is heard there. The click noise is
recorded on CD-R/RW disc if the Stop or the Pause key is pressed while manual dubbing from
tape to the CD-R/RW.

2. In case "DUB 1 (TPE --> CD-RW)" mode is cancelled by Stop key of Tape or CD-RW, the click
noise is recorded on CD-R/RW disc same as 1).

Solution:
Following hardware change is needed. It has been made on the products of S/N 0100001 and up.

* Parts Required
2 pcs. Ceramic Capacitor, 1000 pF P/N 3C013672
1 pce. Transistor, DTA124ES P/N 3S000301
1 pce. Wire, 50 mm P/N 3V000050

1. On In/Out PCB Assy
Replace C727 0.1 uF Ceramic Capacitor with 1000 pF one.

In/Out PCB (Solder Side)

No. 0302
DATE 16th January 2003

C727

1. Replace with 1000
pF Ceramic Capacitor.

N-2523

2. On Main PCB Assy

a) Replace C353 0.1 uF
Ceramic Capacitor with
1000 pF one.

a) Replace with
1000 pF Ceramic
Capacitor.

b) Connect Emitter of an additional DTA124ES Transistor to Emitter
of Q314.
c) Connect Base of the additional DTA124ES to Test Pad "P-E".
d) Fit an additional 50 mm Wire between Collector of the additional
DTA124ES and Test Pad "N-EQ".
e) Cut foil pattern between U314-Pin 4 and Test Pad "N-EQ".

b) Connect Emitter of the
additional DTA124ES.

Q314

U314

e) Cut foil pattern.

C353

Additional DTA124ES

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03xx

Main PCB

(Solder Side)

c) Connect Base of the
additional DTA124ES.

Test Pad "P-E"

Fix the wire by bond.

d) Fit the 50 mm Wire.

Test Pad "N-EQ"