Panasonic RN-105D User manual

ORDER NO. AD8904079C1
Service Manual
Microcassette™
Recorder
R N
-
7
O5
[)
Color
(K)... Black Type
Area
Country
cm fsa
(K)
Pc
RN-105 MECHANISM SERIES
Mi SPECIFICATIONS
Power Requirement: Battery; 3V (two ‘“‘AA”’ size, Program Time: 2 hours with RT-6OMC
R6P/LR6, UM-3 batteries) microcassette tape
AC; 120V, 60Hz (with optional (at 1.2” speed)
Panasonic AC adaptor 1 hour with RT-60MC
RD-9443HA) microcassette tape
Car battery; with optional (at “2.4” speed)
Panasonic car adaptor Track System: 2-track monaural recording and
RP-993 and Panasonic DC playback
plug adaptor RP-007 Input: DC in; 3V (Mini type) (2.5)
Speaker: 13/,” (4.5cm) PM dynamic speaker, 10Q Output: Monitor; 8Q (3.5)
Power Output: 300 mW RMS (MAX.) Dimensions:
Tape Speed: 15/32 ips (1.2cm/s) (W x H x D) 25lig’ X 45/4" X 11146"
15/16 ips (2.4cm/s) (59.5 x 117 x 27.5mm)
Weight: 5.1 oz (145 g) without batteries
Weights and dimensions shown are approximate.
Design and Specifications are subject to change without notice.
Matsushita Services Company Panasonic Hawail, Inc. Panasonic Sales Company,
50 Meadowland Parkway, 99-859, lwaiwa Street Division of Matsushita Electric
Secaucus, New Jersey 07094 P.O. Box 774 of Puerto Rico, Inc.
S
Honolulu, Hawaii 96808-0774 San Gabriel Industrial Park
Ave. Km. 9.5
a i ® Matsushita Electric staan 00630
of Canada Limited aroina, F.A.
5770 Ambler Drive, Mississauga,
Ontario, L4W 2T3

RN-105D
Mi LOCATION OF CONTROLS
MONITOR Jack VOLUME
(8Q, $3.5): Control
Built-in MIC
Button
Cassette
Cassette Lid:
TAPE SPEED
BATTERY SERVICE LIFE
UM-3 (AA-size) Batteries
Approx. 6.1 hours of recording (ElAuv)
Approx. 4.5 hours of playback (ElAu)
Selector FF/CUE
Button The above battery service life is measured according
AV ae STOP Button to the conditions set forth by ElAJ (Electronic
once duct Industries Association of Japan). As the battery
ee ee service life varies with the method of operation and
environmental conditions, use these values as
Battery
Cover
reference.
(back)
Mi DISASSEMBLY INSTRUCTIONS
2. Remove the 5 screws (O~@).
Procedure 3. Push the rib with a flat screwdriver.
; 4. Remove the rear cabinet in the direction of the
arrow.
Rear Cabinet
Flat Screwdriver
— Battery Cover
Removal of the Mechanism unit and Removal of Main P.C.B.
Main P.C.B.
Procedure Procedure
1-2
1-2-3
1. Remove the one screw (@).
2. Disconnect the 4 soldered connections
of the lead wires, and then remove the
Main P.C.B. Py
¢Remove the battery terminal with a flat
screwdriver, and then remove the
mechanism unit and Main P.C.B. in the
direction of the arrow.
Mechanism Unit
and Main P.C.B.
Soldered Connections Soldered Connections
Flat
Screwdriver
Removal of the Cassette lid
1. Remove the spring.
2. Push the rib in the direction of the arrow,
and then remove the cassette lid.
: _
bea
ms ft ae
DY re
Ref. No.
4
Procedure
Nay. s000000 0000
TT TREeTEEHeR
Cassette lid

RN-105D
Mi REASSEMBLY PROCEDURES
¢ How to install the Main
P.C.B.
Install the main P.C.B.
in the mechanism unit
so that positions @,
and © match with
positions @), 6) and ©
respectively as shown
in Fig. 2.
e How to install the
speaker.
Install the speaker in
the speaker box as
shown in Fig. 1.
Mechanism Unit
Fig. 2
¢ How to install the cassette lid.
1. First insert lid hinge ® and then hinge © in the front cabinet as shown in Fig. 3.
2. With the lid open, insert spring end @ in hole &) in the front cabinet as shown in
Fig. 4.
3. Close the cassette lid and then insert spring end © in hole ©&) in the cassette lid
as shown in Fig. 5.
Cassette lid
Mi MEASUREMENT AND ADJUSTMENT METHODES
NOTES: Make sure the unit is in good working order before attempting measurements and adjustments.
Set the switches and controls to the positions as specified for this procedure.
Make sure heads are clean.
eMake sure capstan and pinch roller are clean.
eSuggested room temperature for this procedure.
(A) Head Azimuth
. Assemble the mechanism and cabinet parts completely.
@Volume control: Maximum
e Tape speed selector switch: 2.4cm/s
eFF/REW switch: OFF
Adjustment . Play back the head azimuth adjusting tape (2.4cm/s, 3kHz...QZZMWA.)
Condition: . Adjust the azimuth adjusting screw (Refer to Fig. 1) of Record/Playback head to
Playback mode obtain the maximum monitor output.
Equipment: . After adjusting, repeat PLAY and STOP some times and confirm that the output
eTest tape variation is less than the specified level (within 3 dB).
... QZZMWA R/P Head
Tape speed . Test equipment connection is shown in Fig. 2. Monitor jack Fig. 1
adjustment
Condition:
Playback mode
Equipment:
@DC power supply
@ Digital electronic
counter
eTest tape
...QZZMWA for
. Apply 3 V to DC IN.
. Connect the monitor output (8Q) to the counter.
. Playback the tape speed adjusting tape (for oc power supply Playback mode
. Measure this frequency. Fig. 2
DC IN jack
Digital electronic
2.4 cm/s 3 kHz. QZZMWA). counter
Standard value: 2970 + 20 Hz (2.4cm/s)
(ambient temperature: 10° C~30° C)
2.4 cm/s 6. If measured value is not within standard, adjust as follows.
e2.4cm/s adjustment
1. Set the tape speed selector switch to 2.4cm/s.
2. Adjust tape speed adjustment VR2 (Refer to Fig. 3) so that frequency is
2970+ 20Hz.

RN-105D
Mi SCHEMATIC DIAGRAM
1 2 3 4
Cl6
25V47
2
"560
A
BUILT-IN u ( HH i
we” | De®
x] Se,
ia bis iin is 5)
feet] = : | eae
t
CX20107MT
ws
($3.5,
82)
2s PLAY EQ /AGC / Roe
Lose MIC AMP / y my
«x * POWER AMP > =<
Rureee
B cy “2
HEAD OY
1600) ane tt zs eg os ft oS = oak Cy a
oO in Py BE BTR ae a? ies
S |
Qi
C Seed
CO)
An
I9SE0
m
BATTERY
2
"AA"
SIZE
aotee
hen
“BATTERIES
3
A C)
MOTOR (M)
~)
D 2475, $2
Notes:
1. S1: Tape speed selector switch in ‘‘2.4cm/s”’ 7. DC voltage measurement are taken with electronic
position. voltmeter from negative terminal of battery.
(1.2...1.2cm/s, 2.4...2.4cm/s) No mark........... Playback
2. S2-1, Record/Playback switch in “PLAYBACK” [ | Peeeeee eee Record
S2-2: position. r fucewandadates Playback (1.2cm/s)
(R...RECORD, P...PLAYBACK) r Weel ietaus) Playback (2.4cm/s)
3. $3: Playback switch in “OFF’”’ position. 8. Battery current: No signal ............ 85mA (VR min.)
E 4. S4: FF/REW switch in “OFF” position. Playback ............. 120mA (VR max.)
5. VR1: Volume control VR. RECOM... 90mA
6. VR2: Tape speed adjustment VR. (2.4cm/s) 9. 2 mark: Printed Resistor
e This schematic diagram may be modified at any time with the development of new technology.
a=pee :- +B Line eum © Playback Signal Line ooon : Record Signal Line
Mi TERMINAL GUIDE OF IC’S,
AND TRANSISTOR
2SB1132RTX
AN6612SE2 | 8 pin CX20107MT

Mi CIRCUIT BOARDS AND
1
BUILT-IN MIC
R/P HEAD
MOTOR
YEL
BLK
BATTERY 2'AA’ SIZE
BATTERIES 3V
NOTES
BLK........ Black
BLU........ Blue
BRN........ Brown
GRY c..:. Gray
GRN....... Green
L. BLU... Light Blue
. The symbols (“0
. The circuit shown in (
on the back side of the printed circuit board.
. The symbols ( @) shown in the circuit board indicate connection points
between conductors on the front side and back side of the circuit board.
VOLUME
— 5 —
WIRING CONNECTION DIARAM
3
4
J2
MONITOR
IC |
TAPE
SPEED
_’ PM DYNAMIC
| SPEAKER
134'(4.5¢m) 102
Jl
shown in the circuit board indicate printed resistor.
_-) on the conductor indicates printed circuit
¢ This circuit board diagram may be modified at any time with the
development of new technology.

RN-105D
Mi MECHANICAL PARTS LOCATION
1 2 3 4 5
(Top View) e SPRING LOCATION
eae:
=)
B isp—Ox
6A
Sy
is
IIA
C
(Bottom
View)
Specifications
D
4.5~10g * cm (FF)
ERREW torque More than 30g * cm (REW)
Pressure of Pinch 140g + 20g
roller
WRMS; 0.35% (2.4cm/s)
Wow and flutter 0.58% (1.2cm/s)
: i eee wee eee ves
¢ SPRING ILLUSTRATION 2
The illustration showns the actual size of the springs so it |
can be used to check their shapes.
(The illustration shows the springs separated from the
mechanism.)
‘5 \2 21 24 PH
a oe ss
32
35
38
39
40

Mi CABINET PARTS LOCATION
1 2 3
CABINET AND CHASSIS 6
RKMO0056 FRONT CABINET ASS’Y 7
1A RUS763ZA SPRING 8
2 RKS0032 BACK CABINET ASS’Y 9
2A RJC93013ZB BATTERY TERMINAL 10
3 RWEN105M SPEAKER ASS’Y 1
4 RJC30019ZB BATTERY TERMINAL I2
5 RJC70028ZB BATTERY TERMINAL 13
14
CASSETTE DECK
24
1 1UA0119YB CHASSIS ASS’Y 25
2 MHKN-3A3LDF = MOTOR 26
3 RMD3101ZB BRACKET el
4 RHG5065ZB RUBBER SPACER 28
5 RFES66ZA SCREW 29
6 RZL3N115P BUTTON ASS’Y, REC 30
6A RBC1338ZA-0 = BUTTON, REC 31
7 RJH2M08XZAG = E.HEAD 32
g RNL187ZC LEVER 33
10 RUHOMO4YZAS = R/P HEAD SBA
11 RZL2N115P BUTTON ASS’Y, PLAY 34
11A RBC1339YB-0 § BUTTON, PLAY S4A
12 RUQ106ZA SPRING 35
13 RMD5015ZB BRACKET 36
14 XQN14+CM3 SCREW 38
15 RHE5191ZA SCREW 39
16 RGU0174 BUTTON ASS’Y, STOP 40
16A RGU0084-K BUTTON, STOP 4
17 RUA842ZB PLATE 42
18 XQNIG+CF3 SCREW 43
19 XQN16+C3FN SCREW 44
20 XQS14+A3 SCREW 45
21 RUW185YA SPRING 46
22 1HGO009ZA PINCH ROLLER ASS’Y 47
RNW164Z WASHER vi
XTN2+18JFZ
RHE5200ZA
RKK0005~K
WM60AY
RHG3071ZA
RUS7642ZC
RKF0059
RHR1373ZA
XTN2+8BFV
RUW184ZA
RNL185ZA
RNL186ZA
RNL188ZA
RNR76ZB
RNG133ZB
RNG134ZA
RNL181ZA
RUW186YA
RZL4N115P
RBC1342YD-0
RZL5N115P
RBC1341YD-0
RUW190YB
RUA841ZA
RUW188YA
RUW189ZB
RUW187ZA
1DM0022ZA
RDRI37ZA
RNG132ZA
RDR141ZA
1DW0046ZA
QBK92060
RNW110ZA
RDVIO1YA
IWEA1052ZC
re re
SCREW
SCREW
BATTERY COVER
MICROPHONE
RUBBER
SPRING
CASSETTE L!1D ASS’Y
HOLDER
SCREW
SPRING
LEVER
LEVER
LEVER
ROD
GEAR
GEAR
LEVER
SPRING
BUTTON ASS’Y, REW/REV
BUTTON, REW/REV
BUTTON ASS’Y, FF/CUE
BUTTON, FF/CUE
SPRING
PLATE
SPRING
SPRING
SPRING
GEAR
REEL TABLE
GEAR
REEL TABLE
FLYWHEEL ASS’Y
WASHER
WASHER
BELT
WIRE

RN-105D
Mi REPLACEMENT PARTS LIST
Notes: * Important safety notice :
Components identified by A\ mark have special characteristics important for safety. When replacing any of these components use only
manufacturer’s specified parts.
* Bracketed indications in Ref. No. columns specify the area. (Refer to the first page for area.)
Parts without these indications can be used for all areas.
Ref. No.
INTEGRATED CIRCUITS COILS AND TRANSFORMERS
RLQZP1ROM SS L
1C1 CX20107MT
1C2 AN6612SE2
|.C, POWER AMP.
|.C, MOTOR CONTROL
TRANSISTORS
QI 25B1132R
VARIABLE RESISTORS
EVLCWAAOOA14 = V.R, VOLUME
EVND4AA00B53_—s«V.R, TAPE SPEED
RPNOOS2
RPNOOS3
RPQO018 SHEET
RPNO104 PAD
RPNO105 PAD
Mi RESISTORS & CAPACITORS
Numbering System For Resistors
TRANS! STOR
BLISTER FILM (BOTTOM)
BLISTER FILM (TOP)
Example:
ERD 25 F J 102
Type Wattage Shape’ Tolerance Value
(1/4W) (1KQ)
ERX 2 AN J 471
Type Wattage Shape Tolerance Value
(2W) (470Q)
Numbering System For Capacitors
Example:
ECKD 1H 102 Z F
Type Voltage Value Tolerance Unique
(50V) (0.001 {F)
ECEA 50 M 330
Type Voltage Characteristics Value
(50V) (33UF)
@ Capacity values are in microfarads (UF) unless specified
otherwise, P=Pico-farads (pF) F=Farads (F).
@ Resistance values are in ohms (Q), unless specified
otherwise, 1K = 1,000Q, 1M= 1,000kQ
ERDS2T J4R7 47 1/4
RRSAIOJ103TH 10K 1/8
ERDS2T J122 1.2K 1/4
RRSASSJRS0TH 0.5 1/8
ERDS2TJ3R9 3.9 1/4
RRDI8XJ1538V. «15K «1/8
ERDS2TG182T 1.8K 1/4
ECEAIHKORIL 0.1 50
So eS
ESD1132254
RSH1A92ZB-U
RSH1A92ZB-U
RJJB2Z
QJA0199
XZB10X20A04
RPK0046
RQTOOSO0C
RQTOOS0P
: Carbon
: Metal Oxide
: Fuse Type Metal
: Metal Film
: Carbon (chip)
: Metal Film (chip)
: Solid
: Incombustible
Box-Shaped
: Wire-Wound
: Chip Resistor
: Chip Resistor
ECEA1CKS100
ECEAQJKS220
ECEATHKS2R2
RCUV1C333MD
RCBS1C472MX
ECEA0GK470
ECEATCKI00L
ECEA1HKSR47
ECEAOJK220
ECEAOJK220
ECE : Electrolytic
ECCD-_: Ceramic
ECKD _ : Ceramic Capacitor
ECQN - : Polyester
ECQP _ : Polypropylene
ECG : Ceramic
ECEA N : Non Polar Electrolytic
QCU : Ceramic (Chip Type)
ECUX _: Ceramic (Chip Type)
ECF : Semiconductor
EECW _ : Liquid electrolyte
double layer capacitor
SW, TAPE SPEED
SW, REC/PLAY
SW, PLAY
SW, FF/REW
JACK, DC IN
JACK, MON! TOR
POLYETHYLENE COVER
GIFT BOX
INST. MANUAL
INST. MANUAL
OJ : 6.3V
1C : 16V
1H : 50V
50 : 50V
2H : 500V
1: 100V
KC : 400V AC
KC : 125V AC
(UL)
12: 1/2W
25: 1/4W
18: 1/8W
> 1/2W
50: 1/2W
3A: 3W
8G : 1/8W
Capacitor Type Voltage |
1A: 10V
1E : 25V
1V : 35V
05 : 50V
2A: 100V
1J : 63V
RCBS1C103MYY
ECEATEK4R7L
ECEATHKR47L
ECEA1CKS100
ECUV1E333MD
ECEAICKS100
ECEA0GKA471 |
ECEA1AK3301
ECEAIEK3R3
RCBS1H102KB
RCBS1H102KB
RCBS1C103MYY
ECUV1H102MD
Tolerance
J: £5%
F: £1%
G: £2%
J: £5%
K: £10%
M: £20%
Tolerance
K: £10%
M: £20%
Zz: +80 o,
J: £5%
G:+£2%
F:£1%
C: £0.25pF
D: £0.5pF
0.01
0.47 50
10 16
0.083 25
10 16
410 4
33 «10
3.3 25
0.001 50
0.001 50
0.01 16
0.001 50
Printed in Japan
H890400300 MY/TM

ORDER NO. AD8904102A8
Service
Manual
Microcassette
Microcassette™ Recorder R N 1 05 D
e Please file and use this manual together with the service
manual for Model No. RN-105D order No. AD8904079C1.
Color
e This service manual contains some differences to the (K)...Black Type
service manual for Model No. RN-105D (P). Area
New Zealand &
CHANGES
Mi SPECIFICATIONS
Power Requirement: AC; 120V, 60 Hz (with optional Power Requirement:
Panasonic AC adaptor (yc ccsctsescveoseeseaceccasesscackeee AC; 220V, 50 Hz (with optional
RD-9443HA) Panasonic AC adaptor RD-9443HS)
(G), (GC), (GIN).........ccecee AC; 110~127/220~240V, 50/60 Hz
(with optional Panasonic AC adaptor
RD-9443H)
RN-105D (P) (Original) RN-105D (E), (G), (GC), (GN)
Mi PARTS COMPARISON TABLE
| Change of PartsNo. = | Change of PartsNo. = Parts No.
RN-105D (P) RN-105D Remarks
(Original) (E), (G), (GC), (GN)
Ref. No. Parts name & Description
ACCESSORY
A1 INST. MANUAL RQTO0O80P RQT0080G (G) (GC)
PACKING MATERIAL
BLISTER FILM (BOTTOM) RPNO092
BLISTER FILM (TOP) RPNOO093
SHEET RPQO0018
RPQO0030
RPNO104
Deleted
(G) (GC) (GN)
RPNO105
POLYETHYLENE COVER pe XZB10X20A04
Added
(G) (GC) (GN)
GIFT BOX RPK0046
CABINET AND CHASSIS
= s .
Panasonic Matsushita Electric Industrial Co., Ltd.
Central P.O. Box 288, Osaka 530-91, Japan
Printed in Japan
H890411000 MY/TM