|
|
|
Who's Online
There currently are 5993 guests and
13 members online. |
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
It's complete and helpful manual with good quality of scan. Thanks very much.
;
The service was quick and simple, finding the service manual easy and it appears to be the original with colour schematics. It contained the info I was after and so sorted the problem.
I have copied it to CD and attached the envelope to the inside back cover of the owners manual. Good manual and excelent service. Robin Wood, Wood Electronics, New Zealand.
;
Exactly what was needed to assess the product - excellent value and great service
 ;
Nice to have the service manual for the Sony DCR-TRV345E now. The document is of excellent quality.
;
MACKIE HR824 26 pages English-only Service Manual contains:
1) HR824 technical overview with the description of front and rear panel switches.
2) HR824 specs
3) Block Diagram
4) Wiring Diagram
5) Packaging management
6) Spare part & final assembly list (for PCB rev A and B) + exploded view
7) Test Procedures (where, how to measure voltage...) including Test Point diagram on the PCB.
8) IC and Transistor charts.
Excellent guide: very clear, good scan quality enabling us to print readable diagram :-)
Note:
Mackie HR824 make extensive use of surface mount devices (SMD). Service on the HR824 must
only be undertaken by experienced service technicians with the right tools, experience and patience to perform surface mount rework when needed.
1
2
3
4
2.3 NETWORK ASSY
Before removing the Network Assy, remove the grille and each speaker unit then disconnect the cords from the speaker unit. � For removal/reattachment of the Network Assy for the woofer: Only the woofer must be removed. � For removal/reattachment of the Network Assy for the midrange/tweeter: Removal of all the units is required.
A
2.3.1 Network Assy for the Woofers
� The Network Assy for the woofers is located inside the back board behind the lower woofer and secured with 4 screws. (1) Remove the acoustic absorbent pads at the input terminals. (See Figs. 2-5 to 2-8.) (2) Remove the 2 nuts that secure the round connectors from the lower input terminals. (See Fig. 2-1. Tool: Box wrench, 14 mm/GGH-002) (3) Remove the 4 screws that secure the Network Assy then pull the Assy out through the hole where the woofer was attached. (See Fig. 2-2.) (4) When reattaching, pass the Network Assy through the hole where the lower woofer was attached then secure it in place with the 4 screws. (See Fig. 2-2.) (5) Among the 3 pairs of cords from the Network Assy, connect the cords with black tape to the lower input terminals and secure them with the nuts. (See Fig. 2-1. Tool: Box wrench, 14 mm/GGH-002) (6) Apply adhesive to the secured nuts. (Adhesive: DIABOND black/GYL-014) (7) Reinstall the acoustic absorbent pads at the input terminals. (See Figs. 2-5 to 2-8.) (8) Among the 3 pairs of cords from the Network Assy, connect and solder the remaining 2 pairs of cords with white tape to the woofer and reattach the woofer in the cabinet.
2.3.2 Network Assy for the midrange / tweeter
� The Network Assy for the midrange/tweeter is attached to the inside of the left side board behind the upper woofer, using 4 screws. (1) Remove the acoustic absorbent pads at the input terminals, inside and at the rear of the chamber, and behind the chamber. (See Figs. 2-5 to 2-8 and 2-9 to 2-11.) (2) Remove the 2 nuts that secure the round connectors from the upper input terminals. (See Fig. 2-1. Tool: Box wrench, 14 mm/GGH-002) (3) Remove the 4 screws that secure the closure panel inside the chamber, remove the 4 screws that secure the Network Assy, and pull the Network Assy out through the hole where the woofer was attached. (See Figs. 2-3 and 2-4. Tool: Screwdriver/GGK1012) (4) When reattaching, pass the Network Assy through the hole where the upper woofer was attached and secure it in place using the 4 screws. (See Fig. 2-3. Tool: Screwdriver/GGK1012) (5) Among the cords from the Network Assy, connect the cords with the round connectors to the upper input terminals and secure them with the nuts. (See Fig. 2-1. Tool: Box wrench, 14 mm/GGH-002) (6) Apply adhesive to the secured nuts. (Adhesive: DIABOND black/GYL-014) (7) Pass the 2 pairs of cords from the closure panel through behind the chamber then secure the closure panel from inside the chamber, using the 4 screws. (See Fig. 2-4.) (8) Reinstall the acoustic absorbent pads at the input terminals, inside and rear of the chamber, and behind the chamber. (See Figs. 2-5 to 2-8 and 2-9 to 2-11.) (9) Connect and solder the cords to the coaxial-unit speaker and reattach it in the cabinet.
B
C
Apply adhesive. +: White with Black line
From the Network Assy for the midrange/tweeter From the Network Assy for the woofers
-: White Apply adhesive.
D
Fig. 2-1: Input terminals (inside the cabinet) Upper side Upper side
E
Closure panel : Screws
Bottom side Bottom side : Screws Fig. 2-2: Specifications for attaching the Network Assy for the woofers : Screws Fig. 2-3: Specifications for attaching the Network Assy for the midrange/tweeter
Chamber Fig. 2-4: Specifications for attaching the closure panel (cross-sectional view of the coaxial-unit speaker)
F
S-1EX
1 2 3 4
9
|
|
|
> |
|
