Pioneer CT-F10 Panduan Servis - Halaman 21

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1. Block Diagram and Schematic Diagram

Operation of the Test Mode

1. When the "EJECT" key is pressed, cassette mechanism switch

check mode is entered and the DISPLAY Part displays the

following.

REV REC SW

ON: REV recording

OFF:

FWD REC SW

ON: FWD recording possible

OFF:

TAPE TYPE

NORMAL

2. When the "REC PAUSE" key is pressed, the mode for opening

of REC PLAY is reached, automatic recording and playback

mode is reached and the following operation is performed.

1 FUNCTION is set to AUX.

2 FWD recording is performed for 4 sec.

3 RVS recording is performed for 4 sec.

4 FWD playback is performed for 4 sec. (Function becomes

TAPE), and the unit stops.

5 RVS playback is performed for 4 sec.

6 STOP.

7 REC PAUSE . ( Direction becomes FWD )

LINE MUTE opens in REC condition.

3. "DOLBY" ON/OFF check mode is made with the remote

control " STOP" key.

4. The remote control the keys "PLAY", "FF", "RWD", "STOP",

and "REC" operate normally and LIN MUTE opens in REC/

REC PAUSE condition.

5. When abnormal operation is detected, the corresponding code

will be displayed on the DISPLAY Part.

01 ........ The tape does not loading/eject-error.

02 ........ The deck mechanism assist does not setup

position.

7 Cancellation of test mode

Press the "STANDBY/ON" key or disconnect the AC power

supply.

possible

Impossible –

(TYPE I)

CrO2

(TYPE II)

Error Code

6.2 SINGLE OPERATION METHOD

Operation of preparation

Connect part A of the MAIN ASSY [W156 (GND) and

W134 (GNDPB)], short-circuit the TEST MODE JP [W137

GNDC) and W138 (TEST)] (pin 30 of the microcomputer

connected to GND), and supply DC power to part [W155

(9 V), W154(-10 V) and W156 (GND)]. (Refer to Fig. 6-1.)

In case of single connect load

In case of adjustment as a single unit, connect a 27 kΩ load

resistor to pins W149(PBR) and W150(PBL) of (MAIN

ASSY ). (Refer to Fig. 6-4.)

In case of input signal

In case of adjustment as a single unit, enter the signal at

W147(REC_L) and W151(REC_R) of MAIN ASSY. At this

time, connect an output buffer amplifier to the oscillator, and

then connect a series resistor(180 Ω) after the impedance

hasbecome sufficiently low. (For MPX filter impedance

matching)

(Refer to Fig. 6-4.)

In case of Fuction

Connect part B of the ILLUMI ASSY[ "REW"(W177) and

"FF"(W175) circuit the TEST JUMPER [W176 GNDC] .

GNDD

W176

CT-F10

REW

W177

F F

W175