Sony XR-C6210R, XR-C6220R Service Manual
XR-C6210R/C6220R
RTV servis Horvat
Tel: ++385-31-856-637
Tel/fax: ++385-31-856-139
Mob: 098-788-319
www.rtv-horvat-dj.hr
SERVICE MANUAL
For RM-X4S (Remote Commander),
please refer to RM-X4S Service Manual
(9-925-698-∏) previously issued.
Photo: XR-C6210R
SPECIFICATIONS
AEP Model
UK Model
Model Name Using Similar Mechanism XR-C6100R
Tape Transport Mechanism Type MG-25Y-136
MICROFILM
FM/MW/LW CASSETTE CAR STEREO
TABLE OF CONTENTS
1. GENERAL
Location of Controls ....................................................... 3
Setting the Clock ............................................................. 3
Installation....................................................................... 4
Connections ..................................................................... 5
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
2. DISASSEMBLY ......................................................... 8
3. ASSEMBLY OF MECHANISM DECK........... 10
4. MECHANICAL ADJUSTMENTS....................... 13
5. ELECTRICAL ADJUSTMENTS
Test Mode........................................................................ 13
Tape Deck Section .......................................................... 13
Tuner Section .................................................................. 14
6. DIAGRAMS
6-1. Block Diagram – TUNER Section – .............................. 17
6-2. Block Diagram – TAPE/MAIN Section – ...................... 19
6-3. Block Diagram – DISPLAY/KEY CONTROL/BUS
CONTROL/POWER SUPPLY Section – ....................... 21
6-4. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 23
6-5. Schematic Diagram – MAIN Section (1/3) –................. 25
6-6. Schematic Diagram – MAIN Section (2/3) –................. 27
6-7. Schematic Diagram – MAIN Section (3/3) –................. 29
6-8. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 31
6-9. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 33
6-10. Printed Wiring Boards – PANEL Section – ................... 35
6-11. Schematic Diagram – PANEL Section –........................ 37
6-12. IC Pin Function Description ........................................... 42
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
7. EXPLODED VIEWS ................................................ 46
8. ELECTRICAL PARTS LIST ............................... 49
– 2 –
– 3 –
SECTION 1
GENERAL
This section is extracted from
instruction manual.
– 4 –
– 5 –
– 6 –
– 7 –
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
SUB PANEL ASS’Y
3
two claws
2
five screws
(PTT2.6
×
8)
3
claw
MECHANISM DECK (MG-25Y-136)
2
connector
(CN302)
5
sub panel ass’y
1
screw
(PTT2.6
3
4
×
6)
4
mechanism deck
(MG-25Y-136)
flexible flat cable
(CN301)
connector
(CN500)
1
screw
(PTT2.6
×
8)
– 8 –
MAIN BOARD, HEAT SINK
3
two ground point
screws
4
main board
5
three screws
(PTT2.6
1
5
two screws
(PTT2.6
×
8)
×
10)
screw
(PTT2.6
XR-C6220R
2
rubber cap (25)
×
8)
5
6
heat sink
5
screw
(PTT2.6
two screws
(PTT2.6
×
8)
×
8)
1
two screws
(PTT2.6
×
8)
– 9 –
SECTION 3
ASSEMBLY OF MECHANISM DECK
Note: Follow the assembly procedure in the numerical order given.
HOUSING
4
Fit claw on B part.
3
Put the housing
under
A
part.
housing
5
Fit projection on C part.
2
Install the hanger onto
two claws of the housing.
C
part
7
Holder the hanger by bending the claw.
1
Install the catch to the hanger.
hanger
6
Fit projection on D part.
8
Hold the hanger by
bending the claw.
D
part
ARM (SUCTION)
A
part
projection
B
part
2
Move the arm (suction) in the arrow
direction and fit on projection.
1
Fit the arm (suction) on the shaft.
– 10 –
LEVER (LDG-A)/(LDG-B)
shaft
A
1
Fit the lever (LDG-A) on
shafts
A
– C and install it.
shaft
B
shaft
C
3
type-E stop ring 2.0
shaft
A
Fit the lever (LDG-B) on
2
shafts
A
install it.
and B and
shaft
B
GEAR (LDG-FT)
hole
hole
gear (LDG-D)
lever (LDG-A)
gear (LDG-FB)
4
Align hole in the gear (LDG-D)
with hole the lever (LDG-A).
2
tension spring (LD-2)
5
gear (LDG-FT)
1
6
polyethylene washer
2
tension spring (LD-1)
– 11 –
3
Move the lever (LDG-B)
in the arrow direction.
GUIDE (C)
2
guide (C)
1
three claws
MOUNTING POSITION OF CAPSTAN/REEL MOTOR (M901)
two precision screws
(P2
×
2)
capstan/reel motor
(M901)
30˚
– 12 –
SECTION 4
MECHANICAL ADJUSTMENTS
SECTION 5
ELECTRICAL ADJUSTMENTS
1. Clean the follo wing parts with a denatured-alcohol-moistened
swab:
playback head pinch roller
rubber belt capstan
idlers
2. Demagnetize the playback head with a head demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the power supply
voltage unless otherwise noted.
• T orque Measurement
Mode Torque Meter Meter Reading
Forward CQ-102C
Forward
Back Tension (0.01 – 0.06 oz•inch)
Reverse CQ-102RC
Reverse
Back Tension (0.01 – 0.06 oz•inch)
FF, REW CQ-201B
CQ-102C
CQ-102RC
30 – 65 g•cm
(0.42 – 0.90 oz•inch)
0.5 – 4.5g•cm
30 – 65 g•cm
(0.42 – 0.90 oz•inch)
0.5 – 4.5g•cm
60 – 200 g•cm
(0.83 – 2.78 oz•inch)
• T ape Tension Measurement
Mode Tension Meter Meter Reading
Forward CQ-403A
Reverse CQ-403R
more than 90 g
(more than 3.18 oz)
more than 90 g
(more than 3.18 oz)
TEST MODE
This set have the test mode function. In the test mode, FM Auto
Scan/Stop Level and AM (MW) Auto Scan/Stop Lev el adjustments
can be performed easier than it in ordinary procedure.
<Set the Test Mode>
1. Set the “power select” switch (S501) is “A (ON)” position.
2. Turn ON the regulated power supply. (All LEDs on the set
lights up, and the clock is displayed.)
Note: Press the [OFF] button, if the clock is not displayed.
3. Push the preset [4] button.
4. Push the preset
5. Press the preset
[5] button.
[1] button for more than two seconds.
6. Then the display indicates all lights, the test mode is set.
<Release the Test mode>
1. Push the [OFF] button.
2. Return the “power select” switch (S501) to initially set position.
See the adjustment location from on page 16 for the
adjustment.
TAPE DECK SECTION
0 dB=0.775 V
Tape Speed Adjustment
Setting:
speed checker
or
test tape
WS-48A
(3 kHz, 0 dB)
frequency counter
10 k
Ω
set
AUDIO OUT jack (CNJ151)
+–
Procedure:
1. Put the set into the FWD PB mode.
2. Adjust adjustment resistor for inside capstan motor so that the
reading on the speed checker or frequency counter becomes in
specification.
Specification: Constant speed
Speed checker Frequency counter
–1.5 to +2.5% 2,955 to 3,075 Hz
Adjustment Location: See page 16.
– 13 –
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