DOWNLOAD Sony CFD-RG880CP Service Manual ↓ Size: 5.02 MB | Pages: 75 in PDF or view online for FREE

Model
CFD-RG880CP
Pages
75
Size
5.02 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cfd-rg880cp.pdf
Date

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))
 tape mechanism deck
 CNP303 (6 core)
 wire (flat type) (13 core)
 (CN303)
 hook
 motor assy
     (M971)
 belt (main)
 belt (RF)
 screw
  (+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 
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 
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 
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) 
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 [
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 [
x
], [VOL +], 
and [SALSA] simultaneously.
Key Operation:
[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. 
 When 
[PRESET– 
.
] is pressed in this mode, the 
SLED moves to inner circumference and the message 
“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. 
CFD-RG880CP
20
SECTION  5
MECHANICAL  ADJUSTMENTS
Precaution
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.)
3.  Do not use a magnetized screwdriver for the adjustments.
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
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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