Sony CFD-RG880CP Service Manual ▷ View online
CFD-RG880CP
17
3-17. TAPE MECHANISM DECK
3-18. BELT (MAIN), BELT (RF)
three screws
(+BV tapping (B3))
(+BV tapping (B3))
tape mechanism deck
CNP303 (6 core)
wire (flat type) (13 core)
(CN303)
(CN303)
hook
motor assy
(M971)
(M971)
belt (main)
belt (RF)
screw
(+BIND DT M2
(+BIND DT M2
× 6)
CFD-RG880CP
18
3-19. TC BOARD
screw
TC board
hook
Remove soldering from the four points.
TC board
yellow red white
black
CFD-RG880CP
19
SECTION 4
TEST MODE
[MC COLD RESET]
The cold reset clears all data including preset data stored in the
memory to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. In the standby status, press the [POWER] button to turn the
The cold reset clears all data including preset data stored in the
memory to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. In the standby status, press the [POWER] button to turn the
power on.
2. Press three buttons of [
x
], [MODE] and at last [POWER] si-
multaneously.
3. When “RESET” appears, the machine enters standby status.
[PANEL TEST MODE]
Enter The Panel Test Mode
Procedure:
1. In the standby status, press the [POWER] button to turn the
Enter The Panel Test Mode
Procedure:
1. In the standby status, press the [POWER] button to turn the
power on.
2. Press three buttons of [REPEAT], [
x
], and [DSPL/ENT] si-
multaneously.
3. When the panel test mode is activated, LEDs and segments of
LCD are all turned on.
Version Check
Procedure:
1. In the panel test mode (all LEDs and segments of LCD are
Procedure:
1. In the panel test mode (all LEDs and segments of LCD are
turned on), press the [ROCK] button.
2. On the LCD, date and version are displayed “xxxxxxxx”. For
example, “0305V001”.
3. From this status, press the [DANCE] button, and the destina-
tion is displayed. For example, “1024 MX2”.
4. To release from this mode, press three buttons of [REPEAT],
[
x
], and [DSPL/ENT] simultaneously.
[CHANGE-OVER THE AM TUNING INTERVAL]
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the [POWER] button to turn the power on.
2. Press the [RADIO/BAND] button to select TUNER (AM)
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the [POWER] button to turn the power on.
2. Press the [RADIO/BAND] button to select TUNER (AM)
function.
3. Select the AM BAND mode and press the [DSPL/ENT] button
for an extended time in the AM BAND state.
4. Then, press the [AUTO PRESET/RADIO/BAND] for an ex-
tended time.
5. Next, press the [PRESET +] [PRESET –] button select either
9k/10k.
6. Finally, press the [DSPL/ENT] button to set the selected step.
[CD SERVICE MODE]
This mode can move the SLED of the optical pick-up, and also can
turn the optical pick-up laser power on and off.
Procedure:
1. Press the [POWER] button to turn the power on.
2. Press the [CD] button to select the CD mode.
3. Press three buttons of [
This mode can move the SLED of the optical pick-up, and also can
turn the optical pick-up laser power on and off.
Procedure:
1. Press the [POWER] button to turn the power on.
2. Press the [CD] button to select the CD mode.
3. Press three buttons of [
x
], [VOL +], and [SALSA] simultane-
ously.
4. It enters the CD service mode and displays “SE MODE”.
5. To exit from this mode, press three buttons of [
5. To exit from this mode, press three buttons of [
x
], [VOL +],
and [SALSA] simultaneously.
Key Operation:
[PRESET+
[PRESET+
>
], [PRESET–
.
]:
Use these keys to move the SLED.
When
[PRESET+
>
] is pressed in this mode, the
SLED moves to outer circumference and the message
“SL OUT” is displayed.
“SL OUT” is displayed.
When
[PRESET–
.
] is pressed in this mode, the
SLED moves to inner circumference and the message
“SL IN” is displayed.
“SL IN” is displayed.
[MODE] : Use this key to turn the optical pick-up laser power on
and off. When the laser power is turned on, the mes-
sage “LD ON” is displayed. When the laser power is
turned off, the message “LD OFF” is displayed.
sage “LD ON” is displayed. When the laser power is
turned off, the message “LD OFF” is displayed.
CFD-RG880CP
20
SECTION 5
MECHANICAL ADJUSTMENTS
Precaution
1. Clean the following parts with a denatured alcohol-moistened
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads pinch rollers
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head demag-
netizer. (Do not bring the head magnetizer close to the erase
head.)
head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy suitable locking compound to the
4. After the adjustments, appiy suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
Mode
Torque meter
Meter reading
FWD
CQ-102AS
2.95 – 6.86 mN • m
(30 – 70 g • cm)
(0.42 – 0.97 oz • inch)
FWD
back tension
back tension
CQ-102C
0.15 – 0.53 mN • m
(1.5 – 5.5 g • cm)
(0.021 – 0.076 oz • inch)
FF
CQ-201AS
more than 5.88 mN • m
(more than 60 g • cm)
(more than 0.83 oz • inch)
REW
CQ-201B
more than 5.88 mN • m
(more than 60 g • cm)
(more than 0.83 oz • inch)
Tape Tension Measurement
Mode
Tension meter
Meter reading
FWD
CQ-403A
more than 100 g
(more than 3.53 oz)
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